US1732096A - Pastry-making machine - Google Patents

Description

Oct. 15, 1929. v J. D. LAPKIN PASTRY MAKING nucn'mz 9 Shuts-Sheet 3.

Filed May 10, 1928 INVENTOR afirz 1214 015130.

ATTORNEY J. D. LAPKIN PASTRY wumw amount:

9 fiheets-s heet 2 Filed May 10,; 1928 INVENTOR da'hnfllagvm ATTORNEY Oct. 15, 1929,

II I! Flllllllll. IH x p Oct. 15, 1929,

J. D. LAPKIN ms'rfw MAKING MACHINE Filed May 10, 1928 9 Sheets-Sheet 3 INVENTOR' (X09212 fl Zqafim m ATTORNEY Oct. 15, 1929. J. D. LAPKIN IAsTRY MAKING MACHINE Filed May 1 1928 9. Sheets-Sheet 4 INVENTOR J fifl Blap fiin.

ATTORNEY Oct. 15, 1929. J. D. LAPKIN PASTRY MAKING MACHINE Filed May 10, 192 8 9 sheqts sheet 5 M mm mm INVENTOR John/.2 Iwfm ATTORNEY J. D. LAPKIN PASTRY MAKING MACHINE Filed May 1 1928 9 Sheets-Sheet 6 INVENTOR ,Jafin .EIapJU-zln.

- ATTORNEY Oct. 15, 1929. .J.' D. LAPKIN PASTRY MAKING momma Filed May 10, 1928 9 Sheets-Sheet 7' INVENTOR Johnfllapffin.

ATTORNEY Oct 15, 1929,. J. D. LAPKIN PASTRY MAKING MACHINE Filed May 10, 1923 9 Sheets- -Sheet -8 INVENTOR fifwz ,D. BY

ATTORNEY I Patented a. is, 1929 UNITED STATES JOHN D. LAPKIN, OF

PATENT OFFICE BROOKLYN, :YOB-K, ASSIGNOR '10 FANNIE ALEXANDER AND MORRIS D. KOPIPLE, OF NEW YORK, N. Y.

rnsriw-mmne mnonmn Application filed May 10,

The invention relates to the art of pastry molding and baking and particularly-to automatic machines for the manufacture of cup pastry, such as ice cream cones, pattie cups and the like.

Automatic machines for the purpose stated have heretofore been devised; these machines may be divided into three distinct types, viz: the horizontally rotatable wheel 1 type the vertically rotatable orFerris wheel k type and the endless chain type. It is to the latter type that the present invention more particularly relates.

He'retofore in constructing endless type practice to locate the mold units between side chains, or inother words, the carrier proper runs over spaced sprockets or wheels at the ends of the machine and the molds proper pass between the same. This necessitates locating the sup ort trackage which runs from end to end 0 the machine, at the sides and makes access to the olds, when replacements and repairs are necessary, a somewhat difficult task. Further, the molds heretofore have usually been located transversely to the direction of the conveyor travel and in order to remove or replaceja unit in its entirety, one had to work from both sides of themachine.

Again in themachines of the endless chain type heretofore known, 'it has been difiicult, if not wholly imp acticable, to use the machines for the p rpose of simultaneously manufacturing tw distinctly different articles such as cones and flat bottom cups or ordinary cones and torch cones, etc. When two difl'erent sets of molds were used to make I two different articles at the same time, all 40 articles were released or discharged at the same place and thereafter had to be assorted by hand.-

v My present invention therefor has for its objects to overcome the objections hereto-.

5 fore found in machines of the endless type;

to provide a machine of the endless chain carrier type so designed and constructed that the carrier'supporting trackage and the end sprockets or wheels are centrally located so that the molds proper will be located at eithmachines it'has been almost the universal 1928. Serial m). 276,695.

longitudinal plane whereby to provide a sub-- stantially balanced unit as it were with respect to the supporting trackage and sprocket wheels; to provide a machine having a frame supported on standards and so designed and constructed as to constitute a rigid structure of light weight for sustaining the carrier supporting trackage in such manner that strains and stresses due to the weight and movement of parts will be distributed in amanner to prevent warping or- 'buckling of the frame and carriage etc.; to

provide a machine of the endless conveyor type with the carrier sprockets or the end shafts close together and provided with trackway end castings mounted on the axles for supporting the trackage that extends centrally of the machine from axle to axle; to provide means for taking care of the expansion of the trackage; to provide certain improvements in the carrier units themselves and in the molds proper carried thereby; and

in general to improve the construction of the machine to reduce the cost of manufacture, increase the capacity, reduce the baking time interval to the minimum, etc.

. Further it is an object of the invention to provide an improved means for loosening the cones from the molds and efiect the extraction or discharge of the cones from the machine. t

In its more detailed nature the invention resides in the provision in a machine of the character'stated of an endless chain of article molding and baking units including coreand mold or male and female elements of novel construction, means to charge the units with batter, novel trackways to guide and support the units in their endless path of travel, including track portions to effect first a complete separation of the core elements from the molded and baked cones. then the opening of the mold elements to discharge the cones, an air blast suitably positioned to assist the discharge action if and when nee-- cessary being also provided, then closing the mold elements to condition them to receive a new batter charge, and finally to again move the core elements to the baking position in the mold elements, and an oven through which the endless chain passes and having for its purpose to hold heat and facilitate the baking of the cones.

The invention further resides in the novel double line arrangement of the cooperative molding elements whereby double capacity is provided for with a minimum of trackage and other working parts.

Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends, the invention consists in the novel details of construction, combination and arrangement of parts, all of which will be first fully described in the following detailed description, then be particularly pointed out in the appended claims, reference being had to the accompanying drawings, in which Figures 1A,1B andlC collectively comprise a side elevation of the machine, parts being in section, the lines of division of the figures being indicated by thelines A-A, and BB.

Figure 2 is a diagrammatic side elevation illustrating the means for imparting motion .to the moving parts of the machine and association with the batter charging mechanism therewith.

Figure 3 is an enlarged fragmentary cross section of a portion of a mold and core in the baking position.

Figure 4 is an enlarged detail section of the portion of Figure 3 enclosed in the circle.

F1gures5 and 6 are vertical cross sections taken on the lines 55 and AA respectively on Figures 1A and 1B respectively.

Figure 7 is an enlarged detail end view of one of the baking units, the connecting chain links, the supporting trackways and the mold opening cam association being also shown.

Figures 8, 9, 10 and 11 are diagrammatic cross sections illustrating one cooperating core and mold unit at the charging position, the baking position, at the start of the discharging position, and at the mold fully open or full discharge positionrespectively.

Figure 12 is a face view of the batter charging pump head, the association of the devices for actuating the valves and plungers.

Figure 13 is a plan view of the pump head per se.

Figure 14 is an end elevation of the parts shown in Figure 12.

Figure 15 is a detail cross section illustratingme valve and measuring cup of the pump hea Figure 16 is a side elevation of one of the baking units together with the connecting links which connect the units to form an endless chain. k

Figure 17 is a plan view of a baking unit.

Figure 18 is a detail vertical cross section taken on the line 1818 on Figure 1B.

Figures 19 and 20 are detail face views of the respective track end supporting castings and the connecting portions of the trackways.

In the practical development of the invention I provide opposed pairs of end standards 1 and 2 in which cross shafts 3 and 4 respectively are rotatably mounted.

The standards 1 and 2 support the main frame angles 5 which in turn support the auxiliary vertical frame angles 6 and horizontal frame angles 7 which collectively form a suitable casing frame which, when covered by the wall plates 8, preferably of asbestos to hold the heat, form an efiicient oven to facilitate baking of the product. The angles 5, 6 and 7 also support other parts of the machine as will appear from. the following description.

The main frame angles 5 are joined at their,

ends by cross stay rods 9 and a lower pair of frame longitudinal angles 10 rest on similar stay rods 11 joining the pairs of standards 1 and 2 near their lower ends. Similarly positioned longitudinal angles 12 are secured to the upper horizontal angles of the oven framing, see Figures 5 and 6.

On the shaft 3 a pair of sprocket wheels 13 are centrally secured in spaced relation and a like pair of wheels 14 are similarly secured to the shaft 4. Over these wheels, which rotate with the shafts 3 and 4 in a manner later to be described, passes an endless chain of baking units such as are disclosed in de- 4 13 and 14 the shafts 3 and 4 have secured thereon worm wheels 20 which are engaged by worms 21 secured on the power shaft 22 mounted in suitable bearings 23 supported by the machine framing. The shaft 22 is rotated through belt and pulley connections 24 from a source of power not shown.

Supported on each of the shafts 3 and 4 and between the sprocket wheels is a track- Way end casting 25 having a track face conheads 29 which serve to su "longitudinal track support earn 30 which is.

tour 26and bores 27 to receive rod ends 28- projecting from the support beam mounting port the central secured at its ends to the said heads as at 31.

It will be observed by reference to the composite Figures 1A, 1B and 10 that the oven extends from a point in the lower flight of the chain just beyond the batter charging 'ump to the end of the machine around the Wheels 14 and throughout-the whole upper flight of the chain and around the spro@ket wheels 13 where it terminates, leaving open a space through the lower flight of the endless chain equivalent to the length of four full mold positions.

Through the whole of the covered oven space baking takes place and through the open space all relative movement of the baking unit parts takes place, namely the separation of the cores from the molds followed by the opening of Y the mold halves to discharge the baked prodcharging of the mold cavities with batter,

ucts, the reclosing of the mold halves,.the

and the repositioning of the :cores to the baking position.

Throu h that portion of the lower flight of the chain enclosed in the oven the ma-- chine is provided with a single core holddown trackway 32 composed of a short length leading to the open section of the machine and a long length leading from the said open section toward the other end of the machine. The trackway sections 32 are supported from the beam 30 by hanger plates 33 secured at 34 to the beam 30, and the engaged tions merge with or lead from and onto the surfaces 26 of the end casting 25, thus forming continuations of the said surfaces.

Along the whole of the upper flight of the chain a pair of baking unit supporting and core hold-down tracks 35 are provided which likewise merge with and form continuations of the surfaces 26 of the castings 25 and are supported by the hangers 33.

It will be observed by reference to Figure 18 of the drawings that the hangers 33 are arranged in pairs and are spaced at their ends by spacers 36 and secured to the tracks 32 and 35 as at 37. By thus'spacing the hangers a rigid open rectangular mounting as shown in Figure 18 is provided which serves to rigidly mount the tracks in a man-' ner overcoming any tendency thereof to spread or twist out of proper position.

Through the interval at which the lower single trackway 32 is broken the upper trackways 35 are supported by half hangers 39 which, except for their length, are conedges of the said track secangles 10 in the, relation shown in Figures 5 and 6, the said tracks being secured at 41 at their ends to curved end sections 42 which vare substantially concentric to the axes of the shafts 3 and 4, and which merge'at their upper ends with and are ecured at 43 to similar trackways 44 carri d by the upper angles 12 and which serve to guide the travel of the upper flight of the chain in a manner later to be described. At the proper position in the-cut-out interval of the casing a mold opening and closing cam track 45- is secured to and carried by one of the tracks 40 and includes a down incline 46 to effect opehing of the mold halves to discharge the product and an up incline portion 47 to close the mold halves to prepare them for receiving a charge of batterfrom the charging chain of baking units is so formed that a It should be here stated that the endless lineof cooperating molding elements is 'car- I ried at each side of thechain. Thus the machine is built in duplicate and may be utilized to bake dilferently shaped articles at either side of the machine. However, a single set of trackways serves to accommodate the whole of the traveling endless chain, but two sets of batter charging mechanisms, one at each side of the machine, are employed. i n upwardly inclined core lifting trackway cam 50 is secured at 51 to the support ing beam 30 and merges at its receiving end with the short section of the trackway 32 and at its upper end with a core hold-up or supporting trackway 52 supported by the beam 30 through the medium of hanger brackets 53. At its delivery end the trackway 52 delivers onto a downwardly inclined core lowering casting 54 which is secured at 55 to the supporting beam 30 and merges at its lower delivery end with the long section or hold-down trackway 32. The parts 50,52 and" 54 serve to lift the cores out of the molds prior to the discharge of the product from the molds, cores out of the molds during the discharging function and the batter charging function, and to again-lower the cores into the molds inba-king position after the mold cavities have been charged with batter. The curved end-sections 42 arestay-bolt secured as at 56 to the mainframe angles 5- to hold .them' rigid and overcome all spreading tendencies. While passing; through the oven the baking units are e mold heatmg burners 57 and 58'respective- 1y to which the air and gas for proper combustion are (not shown).

1 25 ated by core and delivered in the usual manner. 5 g

At each side of the machine an air line 59 is provided to which compressed air at about twenty pounds pressure is supplied from any suitable source (not shown) and which delivers to an ejector nozzle 60 positioned to inject into the position of the mold cavities as the baking units pass the product discharging position, see Figures 1A and 11.

By, reference to Figures 7, 16 and 17 it will be observed that each'baking .unit comprises a central supporting body 61 having a pair of depending lugs 62 in which cross pins 63 are mounted and on which cross pins two pairs of baking unit supporting and guiding rollers 64 are mounted. The rollers ride on the lower tracks 40, the end trackway sections 42 and the upper trackways 44.

The supporting body also includes an end hub 65 having a slight bore to receive a vertical slidable rack rod 66' having a'rack 67 formed in each side thereof and adapted to mesh with the teeth of the gears 68 secured on the operating shaft 69 mounted in bearings 7 0 also formed on the said support body.

A stationarymold half body 71 is removably secured at 72 to the laterally projected lugs 73 at each side of the supporting body.

The mold ha'lves 71 include upwardly pro--.

jecting hinge lugs 74 to which the separable mold halves 75 are hinge connected by the U-shaped angles 76, the said mold halves 75 and 71 being bored collectively to provide molding cavities, 77. a The movable mold halves 75 are equipped with bored lugs 78 to receive the rods 79 which are link-connected as at 80 at their ends to cranks 81 secured on the ends of the shafts 69, the said cranks being staggered in position so that they will not interfere with each other and all of the centers of the shafts and the link connections with the cranks and rods being in alignment when the parts are in the full line position illustrated in Figure 7 of the drawlngs to hold the mold halves together in the baking position without the necessity of employing complicated individual locking devices, When the shafts 69 are rocked the links 80 will be extended and the movable mold halves forced to the open position illustrated in'dotted lines in the said Figure 7.

Thus the simple rocking movements of the shafts 69 serve both to release and open the molds 'in a single operation and close and secure in a single reverse operation.

To suitably rock the rods 69 at the proper interval. the'rack rod 66 is provided at its I lower end with a cam roller 82 adapted to ridein the molding actuating cam 45, 46 and 47 in the manner illustrated in Figures 1A,

1B and 7.

The unit body 61 alsoincludes an upwardly extended open frame 83 which serves as a i mounting means for thelink connecting pins -16 which connect the units to form the endless mam chain and which the body proper is bored to guide core guide rods 84 rigidly connected at.

shoulder 92 which entirely fills the molding cavity at the top When the parts are in the baking position and.engages the side wall of the cavity with a sort of knife edge contact which serves to allow for the necessary steam escape while substantially preventing batter escape and thus assures the entire filling of the mold cavity with baked'product. With this arrangement only very slight fins are formed on the cones above the knife edge contact which will readily break off the cones without the necessity of employing complicated trimming mechanism.

Keyways 93 are provided in the rack rods 66 and on each lower boss or hub 65 a key washer 94 is secured which includes key portions to engage in the k eyways 93 and prevent rotation of the rod 66 in its bearing. In the diagrammatic illustration in Figure 2 of the drawings the batter charging mechanism is generally indicated at 95. It shouldbehere understood that while I have generally disclosed a specific form of batter pump any construction of batter charging mechanism adaptable to use with the machine as disclosed may be employed.

The charging mechanism herein disclosed comprise frame standards 96 to which hearing heads 97 are secured and which carry spaced parallel slide guide rods 98 on which the slide frame, composed of upper and lower frame bars 99 and 100 and connecting end heads '101, is slidable. I

The frame 99, 100 and 101 is provided with apertured ears 102 to which a pitman 1003 is connected. At its other end the pitman is connected to one arm 104 of a rockable bell crank lever, the other arm 105 of which-is to the engaged position and .the said shaft 111 is mounted in suitable bearings 113. The power shaft 111 is driven by sprocket and chain connecteion 114 from'the countershaft .115 which is in turn operated by sprocket and chain connection 116 from the" main power. shaft 22.

All of the driving parts, except the main power shaft 22, are duplicated at the other side of the machine and the second shaft,

The batter pum .equivalent to that 115 above referred to,

is operated by cross sprocket and chain transmission devices 117, see Figures 2, and 6 proper herein disclosed includes a manifo d 118 to which batter is delivered from a suitable reservoir (not shown and from which the batter delivers throng delivery tubes 119 and control valves 120 secured to a common cross head 127 into measuring cups 121, all. carried by the frame 99, 100 and 101. The valves have lateral extensions 122 which connect with distributor pipes having discharge nozzles 1 23 mounted at their. ends above and in register with the mold cavities, see Figures 5, 6 and 8. All of the valves have their stem levers 124 connected to a common actuator bar 125 through the medium of which all of the valves are operated simultaneously in amanner soon to be described. Y

A plunger 126 is reciprocable in each of the measuring cups 121 andall of the plungers are which is link-connected at 128 to a pair of cranks 129 which are .rockable on the slidable frame and are link-connected to move in unison.

One of the cranks is provided with a cam roller equipped extension 130 and the other 4 of. the cranks is provided with a dependlng arm -extension 131. i

As the shaft 108 rotates the frame 99, 100 and 101 will be reciprocated on the rods 98 through a distance approximately equal to the length of a baking unit between chain links/ It should be observed that the length of the links and the space between the links are equi-distant. Thus each time thepump frame is reciprocated forwardly it will 'travel with a baking unit with the nozzles wardly it will travel thereof in register with the mold cavities of the unit andon its return reciprocation will move into register with the succeeding baking unit so. that when it again moves forwith the said succeeding baking unit with which has moved into register. In this manner it is possible to' eject the batter axially into the mold cavities without any spraying of batter down the side walls of the cavities which is very undesirable in that it often occasions imperfect cones.

As the pump head is reciprocated forwardly the crank arm extension 130 will engage a stationary cam 132 and be moved thereby to force the plungers upwardly to e ect a measured-quantity of batter through the discharge nozzles, it being understood that at this time the control valves are positioned as illustrated in Figure 15 of.the drawings. The cam 132 is provided with a cut-out portion 133 so thatafter the plungers have been I actuated the roller of the crank extension will pass through the said cut-out without further During the continued movement ofthe pump head the forward nd of the common actuator bar '125 strikes a fixed abutment 135 which will shift the bar 125 and change the positions of the valves from that shown in Figure 15 of the drawings to a position closing communication into the extensions 122 and opening communicati n between the tubes 119 and measuring cups On the return reciprocation of the pump head the roller of the extension 130 will pass freely through the cut-out 133 and the other crank extension 131 will next engage the stationary cam roller 134 and be-shifted to the position indicated in Figures 2 and 13 to return the lungers to the lowered position, causing the valves-in the position just above described. Continued backward movement of the pump head frame will cause the other end of the common actuator bar 125 to engage another fixed abutment 135 to reset the valves to the position illustrated in Figure 15 so that when the plungers are again actuated on the succeedinoforward reciprocation of the'head the measured charges of batter may be forced out through the extensions 122.

To overcome all possibility of lifting of the baking units off the tracks 40 during-the core and mold separation, or at any time dur'ng the product discharging operations I prov-i e overhanging flange to the frame angles 110 so thatthey will over: he the unit rollers 64 for the purpose specified, see Figures 5, 6, 1A. and 1B.

Tn Figure 1A of the drawings the baking umts are completely filled in but in the oven enclosed portions in Figures 1B and 10 the baking units are shown diagrammatically for the purpose of clearness of illustration, the chainlinks, the unit supporting and guiding plates 136 and secure them emto suck 1n a charge through rollers and the core rollers alone being shown, j

and the units being diagrammatically indicated by dot and dash connecting lines. I

Inoperation, assuming a unit to have been charged with batter and having just entered the oven the core-and mold elements will be inthe position illustrated in Figure 9 of the drawings, heat being applied by the burners 57 and 58 in the manner there indicated. a

The parts remain in the relative positions passage of the chain through the oven and until they leave the oven at the beginnin of the cut-out portion clearly indicated in ig- Through the lower'flight of the chain the ure 1A;of the drawings.

unit rollers 64:. ride on t e double tracks 40 and support'the whole weight of the units. During the said lower flight the cores are held down by the single track sections 32.

Through the upper flight of the chain the rollers 64' enga e the upper trackways 44 but act only as gui es to hold the 9 weight being supported by the up er double tra k y 3.5 a d he sore ro11ers8 I units steady, the.

shown in Figure 9 throughout the whole of the &

As the units pass out of the oven the core rollers 87 first engage the lifting trackway 50 and are lifted completely out of the mold cavities. After this operation and mold operating 55 rollers 82 engage the down incline 46 ofthe cam 45 and effect an outward swing of the separable moldhalves or an Opening of the molds as indicated in Figure 7 of the drawings. I

Any of the cones which might tend tostick to the mold cavity walls will be freed by the blast of air .as they pass under the nozzles 60. As the cones fall out of the molds they are received on the chutes 48 which deliver them to aconvenient place for packing.

The cores are held in the elevated position by the trackway 52 until after they pass over the batter pump nozzles.- Passing the discharging station the mold actuating roller 82 2e rides up the mold closing incline 47 serving to reversel'y move the parts and to close and full lines in Figure 7 in which condition the molds pass into association with and travel with the pump carriage during the charging operation. I

After the molds are. charged the cores are again lowered to the baking position by the lower trackway 54 and the operation above described is repeated.

' It will be observed by reference to Figures 7 and 10 of the drawings that the hinge centers-of the movable mold halves are. arranged ofl-center so that when the said halves 86 are moved to separate the molds and discharge the product they will move outward in arcuate paths that will carry them slightly downward as they leave the stationary mold halves, see Figure 10. Because of this slight downward movement and the relation of the cones and mold surfaces the cones are automatically [stripped from the mold cavities should they tend to stick and proper discharge of the cones is provided for without the necessity of employing stripper fingers or similar positive stripping members. y

By employing the centrally disposed trackways and carrying bodies and arranging the v molding units in balanced relation at each side of the carrying bodies a particularly compact Well balanced machine is provided which is lighter in weight and more economical to manufacture than machines commonly used capable of producing a like number of cones. Also because of the peculiar construction and arrangement of the mold and core carrying units it is possible to remove any mold in dividually without disturbing the mold at the other side of the particular carrying body or the remainder of the endless chain. It is also possible to remove a com lete unit from the chain without difliculty an because of the provision of the two separate lines of molds and two separate charging mechanisms it is possible to produce distinct articles at each side relates. lock the molds at the position illustrated in guide t .observed that the rod extensions 28 which support the trackways on the casting atone end By arranging themolds as shown and demay be secured in the casting, the rods 28 associated with the other casting being slidable in the casting bearings to permit expansion and contraction of the trackways;

From the foregoing description, taken in connection with the accompanying drawings,

it is thought that the novel details of construction, the manner of use and the advantages of the invention will be readily apparent to those skilled in the art to which it What I claim is:

1. In a machine of the class described, an endless chain of mold carriers, shafts with sprockets around which said chain passes, a charging mechanism at each side of the machine, two sets of molds mounted on said, 03/1'1'161, a smgle set of carrier supporting trackage located approximately at the central plane of the machine, one set of molds being located to one side of said trackage and the other set of; molds being located to the other side thereof, operation of the molds.

2. In a machine of the character described, an endless chain of forming and baking units comprising carrying bodies and links connecting the bodiesto form an endless chain, a separable mold disposed at each'side of and carried by each carrying body and separable longitmhpally in planes parallel to the plane of travel of the chain, core members associated with the molds, and means on the mold and core members whereby. they may be moved relatively for the purposes described.

3. In a machine of the character described, an endless chain of forming and baking units comprising carrying bodies and links connectlng the bodies to'form an endless chain, a separable mold disposed in balanced relation at each side of and carried by each carry; ing body and separable longitudinall in planes parallel to the planeof travel '0 the chain, core members associated with the molds, means on the mold and core members whereby they may be moved relatively, and centrallfi disposed means to support and e carrying bodies throughout their travel.

x 4. In a machine of the character described, an endless chain of forming and baking units com rising carrying bodies and links con necting the bodies to forman endless-chain, a separable mold disposed in balanced relation ateach sideof and carried byleach car rying'body and separable longitudinally in planes parallel the plane of travel of the chain, core members associated with the molds, means on the mold and core members whereby they may be moved relatively, and means to support and guide the carrying bodies throughout their travel, said, last named means including centrally disposed core member engaging trackways to'hold the core members to the baking position during parts of the travel of the chain and to both hold the core members to the baking position and to support the travel of the units during another portion ofthe movement of the chain.

5. Ina machine of the character described, an endless chain of forming and baking units, means to cause the chain to travel in a vertical plane and at its ends about horizontal axes, said last named means includin a pair of horizontally disposed rotating s afts and a pair of driver sprocket wheels secured on each shaft in adjacent spaced relation and adapted to engage and drive comprising'carrying bodies, links connecting the bodies to form the endless chain, a mold disposed at each side of and carried by each core members associated with the molds, and means whereby the molds and cores. may be moved relatively for the purposes described, said carrier bodies being discarrying body,

posed to pass between the sprocket wheels,

' and said molds being disposed to travellaterally of the said sprocket wheels.

6. In a machine of the character described, an endless chain of forming and baking units, means to cause the chain to travel in a vertical plane and at its ends about horizontal axes, said last named means including a pair of horizontally disposed rotating shafts and a pair of driver sprocket wheels secured on each shaft in adjacent spaced relation and adapted to engage and drive. the chain; said chain comprising carrying bodies, links connecting the bod'es to form the endless chain, a mold disposed at each side of and carried by each carrying body, core members associated with the molds, and means whereby the molds and cores may be moyed relatively for the purposes described, said carrier bodies being disposed to pass between the sprocket wheels,

and saidmolds, being disposed to travel lat-- 'erally of the said sprocket wheels, means to support and guide the units throughout their last named means including cen;

ways to hold the core members to the baking position during parts of the travel of the chain and to both hold the core members to I the baking position, and to support the travel of the units during another portion of. the movement of the chain.

Z. In a machine of the character described, an dndless' chain of forming and baking units, means to cause the chain to travel in a vertical plane and at its ends about horizontal axe'S,

sprocket wheels,

the chain; said chain said last named means including a pair of horizontally disposed rotating shafts and. a pair of driver sprocket wheels secured on each shaft in adjacent spaced relation and adapted to engage and drive the chain; said chain comprising carrying bodies, links connecting the bodies to form the endless chain, a mold disposed at. each side of and carried by each carrying body, core members associated with the molds, means whereby the molds and cores may be moved relatively for the purposes described, said carrier bodies being disposed to pass between the sprocket wheels, said molds being disposed to means to support and guide the units throughout their travel, said last named means including centrally disposed core member engaging trackways to hold the core members to the baking position during parts of the travel of the chain and to both" hold the core members to the baking position and to support the travel of the units Y during another portion of the movement oi the chain, and end castings .to carry said pair of driver sprocket wheels secured on each shaft in adjacent spaced relation and adapted to engage and drive the chain; said chain comprising carrying bodies, links connecting the bodies to form the endless chain, a mold disposed ateach side of and carried by each carrying body, core members associated with the molds, means whereby the molds and cores may be moved relatively for the purposesdescribed, said carrier bodies being disposed to pass between the sprocket wheels, said molds being laterally of the said sprocket wheels, means to support and guide the units throughout their travel, said last named means including centrally disposed core member engaging trackways to hold the core members to the baking position during parts of the travel of the chain and to both hold the core members to the baking position and to support the travel of the units during another portion of the movement of thechain, end castings to carry said trackways, said castings being mountedon and supported by the shafts and havingtrackway faces forming continuations of the trackways, and means to connect the trackways tothe castings in a manner providing for their support and permitting free expansion and contraction of the said trackways;

. In a machine of the character described disposed to travel I wherein is provided an endless chain of formin g and baking units including mold and core elements and horizontally disposed shafts with'sprockets thereon to move the chain; core engaging tracks to engage the core ele ments, supporting castings mounted on the shafts and having track-way portions adapted to form continuations of the core tracks, and means to mount the core tracks on the castings. if

10. In a machine of the character described wherein is provided an endless chain of form; ing and baking units including mold and core elements and horizontally disposed shafts with sprockets thereon to move the chain; core engaging tracks to engage the core elements, supporting castings mounted on the shafts and having trackway portions adapted to form continuations of the core tracks,

means to mount the core tracks on the castings, s'aidlast named means including a hearing carried by the trackways and having longitudinallyprojected members to connect with the castings, and at least one of said castings having sockets to slidably receive the projections at one end of the tracks for the purpose specified.

11. In a machine of the character described, an endless chain of forming and baking units comprising carrying bodies and links connecting the bodies to form an'endless chain,

supporting framing horizontal shafts ro-.

tatably supported by the framing, sprocket wheels secured on the shafts and adapted to move the chain, means to impart rotation to the shafts, a split mold' carried ateach side of each carrying body with the split thereof paralleling the plane of travel of the chain,

a set of cores associated witheach split mold,

a common carrier for both sets of cores of each unit and mounted on and guided in the unit carrying body, and means whereby the cores and molds may be moved relatively for the. purpose specified.

12. A machine of the character described, comprising an endless chain of forming and baking units comprising carrying bodies and links connecting the bodies to form an endless chain, a supporting framing, hori- Zontal shafts rotatably supported by the framing, sprocket wheels secured on the shafts in adjacent spaced pairs one on each shaft and adapted to move the chain, means to impart rotation to the shafts, a split mold carried at each side of each carrying body Wit-h the split thereof paralleling the plane of travel of the chain, a set of cores associated with each split mold, a common carrier for both sets of cores of each unit and mounted on and guided by the unit carrying body, mold actuating devices carried by gaged by the guide and supporting rollers, trackways engaged by the rotatable shafts, a single set of cam trackways to effect relative mold and core move ent to-eflect discharge of the cones and permit recharging of the molds, and an individual charging mechanism associated with the molds at each side of the chain.

13. In pastry making machines wherein is provided horizontally disposed rotatable shafts, driving sprockets mounted in spaced relation on the shafts, and an endlessvchain of molding and baking units includingmold sets and core sets, said core sets each having a pair of guide and supporting rollers;

guide and supporting trackways comprising a central supporting beam, trackway castings mounted on the shafts between the sprockets, means to mount the supporting beam at its ends on the castings, a pair of upper trackways to support the core sets and mold sets by engagement with the core rollers, a single lower trackway to engage and guide the. core sets by'engagement with one roller thereof, and means-to support the upper and lower trackways on the support- -ing beam to form continuations of the trackway castings.

"14. In pastry making'machines wherein is provided horizontally disposed rotatable shafts, driving sprockets mounted in spaced relation on the shafts, and an endless chain of molding and baking units including mold upper and lower trackways on the support ing beam to form continuations of the trackway castings, said last named supporting means comprisingpairs of flat hanger plates secured to opposite faces of the sup-.

porting beam and to the upper and lower trackways with spacers equivalent to the thickness of the supporting beam between the free ends of said hanger plates.-

15. In pastry making machines, an endless chain of molding units comprising carrying bodies and links connecting the said bodies to form the chain, each sa-idmolding unit comprising a central carrying body, means to support and guide the body during travel, and an upstanding frame portion, an individual mold detachably carried at each side of the carrying body and havin 'a series of molding cavities arranged in a ine paralleling the line of travel of the chain, cores to cooperate with the molding cavities in forming the product, means to carry. the cores guided in the carryin body and its frame portion, and means whereby the core carrier may be moved for the purposes described.

. 16. In pastry making machines, splitmolds having moldin cavities,- said molds comprising a stationary half and a movable half meeting through the axes of the cavities, and means to hinge-connect the mold halves together on ahinge axis located above the top of the mold cavities and to that side of the axis of the cavities on which the movable mold half lies whereby when the movable half is separated from the stationary half itwill move outwardly in a slightly downward then outward and upward arcu ate path causing detachment of the molded and baked product from both halves of the mold.

17. In pastry making machines, an endless chain of molding units comprising car-- rying bodies and links connecting the said bodies to form the chain, each said molding unit comprising a central carrying body, means to support and guide the body dur-. ing travel, and an upstanding frame portion, an individual split-mold detachably carried at each side of the carrying body and having a series of molding cavities arranged in a line paralleling the path of travel of the chain and with their axes disposed along the split line of the mold, a series of cores to cooperate with each mold,

a common carrier for both sets of cores ofeach unit carried by and guided in the central carrying body, a rack rod guided in each carrying body, a 'pair of rock shafts having bearing in the carrying body and having gears thereon engaging the rack rod whereby when the rod is reciprocated the shafts will be rocked, means whereby the rod may be reciprocated, a pair of cranks on each rod associated, with one movable mold half, links connecting each pair of cranks with the associated mold half, and means whereby the core carrier may be moved for the purpiose specified.

18. In pastry ina ing machines, an endless chain of molding units comprising carrying bodies and links connecting the said bodies to form the chain, each said molding unit comprising a central carrying body, means to support and guide the body during travel,

and an upstanding frame portion, an in. dividual split-mold detachably carried at each side of the carrying body and having a series of molding cavities arranged 1n a line paralleling the path of travel of the chain and with their axes disposed along the splitline of the mold, a series of cores'to cooperate with each mold, a common carrier fo both sets of cores ofeach unit carried by and guidedin the central carrying body, a rack rod guided in each carrying body, a pair of rock shafts having bearing in the carrying body and having gears thereon engaging the rack rod whereby when the rod is reciprocated the shafts will be rocked, means whereby the rod may be reciprocated, a pair of cranks on each rod associated with one movable mold half, links connec't ing each pair of cranks with the associated mold half, and means whereby the core carrier may be moved, the centers of the rock shafts and the crank and link connections being arranged in cross alignment when in the normal position to automatically secure the movable mold halves in the closed position. a

19. In a pastry making machine of the endless chain type in which a chainof mold carriers passes around sprockets on a pair of spaced shafts; a mold carrier supporting trackage extending from adjacent one shaft to adjacent the other, trackage and sustaining members journalled on said shafts and connected to said trackager Y r 20. In a pastry making machine of the endless chain type in which a chain'of moldcarriers passes around sprockets on a pair of spaced shafts; a mold carrier supporting trackage extending from adjacent one shaft to adjacent the other, trackage end sustaining members journalled on said shafts, connections between said members and the respective ends of'the trackage, which connections include at least one expansion joint.

21. In pastry making machines an endless series of baking mold prising a carrying body, a' female mold mounted on said carrying body at each side thereof and itself comprising a pair of split mold members, a core carrier common to both female mold units, cores carried by said 105 the carrying bodies of adjacent units in an 110 endless serles.

22. In pastry making machines an endless series of baking mold units, each unit comprising a carrying 'body, a female mold mounted on said carrying body at each side 116 thereof and itself comprising a pair of split mold members, a core carrier common to both female mold units, cores carried by said carrier, and means for separately mounting body, means for mounting said core carrier on said carrying body, and means connecting the carrying bodies of adjacent units in an endless series said female mold units being arr neof said carrying body whereby they will with their parting v irection of travel of t e carriers.

3. In pastry-making machines wherein is lanes parallel to rovided an endless chain of-molding units; 130

units, each unit comthe female mold members on said carrying 120 anged parallel to the 'central'longitudinal each molding unit comprising a central carr 'ng body, means to su port and guide the ody during travel, an an upstanding frame portion, an individual-mold detachabl and having a series of molding cavitles arranged ina line paralleling the line of travel of the chain, cores to cooperate with the molding cavities in forming the product, means to carry the cores gulded in the carrying body and its frame portion, and means whereby the core carrier may be moved for the purposes described.

. JOHN D. LAPKIN.

carried at each side of the carrying body.

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