US1108518A - Machine for embossing or marking leather. - Google Patents

Description

F. A. PUTNAM. MACHINE FOB EMBOSSIHG 0R MARKING LEATHER.

' arrmourzor FILED 11:12.2, 1911.

1,108,518. rammed Aug. 25, 1911 Q SHEETS-*BEEBT 1.

I. A. PUTNAM.

mcmm FOR nmaossme on MARKING LEATHER.

APPLICATION FILED FEE. 2, 1011. 8,5 1 m Patented Aug. 25, 1914.

2 SHEBTBBHIIET 2.

UNITED STATES PATENT OFFICE.

FREDA. PUTNAM, or MELROSE, MASSACHUSETTS, nssrcmon. To MARKEM MACHIN comm, on BOSTON, MessAoHnsETTs, A conronn ron or messecnosnrrs.

MACHINE FOR IEMIBOSSING' 0R MARKING LEATHER.

Specification of Letters Patent.

1 the line wa:, Fig. 1.

To all whom it may concern:

Be it known that I, FRED A. PUTNAM, a citizen of the United States, residing at Melrose, county of Middlesex, State of Massachusetts, have invented an Improvement in Machines for Embossing or Marking Leather, of which the following description in connection with the accompanying drawing, is a specification, like letters r1er l7 may .be sustained, said. members 17 on the drawing representing like arts. having on their faces type qr embossing Thls invention relates to mac mes for pro ect1 ons 18 shaped to make the ,proper embossing or marking leather and the selected embodiment of'the invention which is herein illustrated has been particularly designed for making a gold or gilt impression on leather.

The features wherein the invention resides will be more fully hereinafter described and thenpointed out in the appended claim. v

Referring now to the drawings, Figure 1 is a side view of the upper part of a machine embodying the invention; .Fig. 2 is a section on the hne y-y, Fig. 1; Fig. 3 is a front view of Fig. 1; Fig. 4: is a section on Fig. 5 is a view showing a bed provided with a horn instead of with a platen.

3 designates a standard or frame which carries at its upper end ahead 4: in which operates a vertically-moving plunger 5 which carries the type or embossing dies.

' This plunger may be given its vertical movement by any suitable mechanism, one simple device being the toggle-lever arrangement 6 which is connected by the link 7 with an eccentric 8 on the shaft 9. The shaft 9 is shown as provided with a gear 10 which meshes with and is driven by a pinion 11 on a driving shaft 12, and any suitable clutch mechanism may be employed for controlling the rotation of the shaft 9. I will'preferably employ some suitable onerevolution clutch mechanism which will permit the shaft to make a complete rotation, and will then causeitto be brought to rest in the position shown in Fig. 1 with the plunger 5 elevated. The clutch is operated by a suitable link 13 which'is connected to a treadle. This clutch and the operating mechanism for the plunger form no part of my invention and may be of any suitable character. The plunger'is shown as having the forked portion 14 between the arms ,of which the die or type-holder ,151 is sup Application filed February 5t, 1911.

Patented Aug'r25, 1914. Serial No. 606,117.

ported. In the invention this die-holder 15 is arranged to support a plurality of dies or sets of type, and it is rotatably mounted in the fork 14 so as to permit any .one of the dies to be brought into operative position. It is hereln shown as provided with four faces 16 on each of which a die member or type carimprint upon the goods.

As herein shown .the die holder 15 is provided with trunnions 1 which are rotatably mounted ,in the arms of the for}: so ,that any one of the die members or type carriers can be brought,into operative position. The holder 15 is held in its adjusted position !by means of a spring catch 20 which engages 1n anyone of a plurality .of apertures incne end of the holder. are preferably removably sustained in the carrierl5-so that die members having different dies or type thereon may be used. As herein shown each die member is provided wlth a stem 21 which enters a radiallyarranged socket in the :holder, each stem being provided with a notch 22 in .which'is received the endof a spring-pressed locking pin 23 carried by the holder. This is a convenient way of removably supportingthe die members in the holder 15.

The standard 3 has extending therefrom a bed member 220 on which is sustained a platen or work holder230, the latter being for the purpose of supporting the work while the impression is being made. The platen 230 is mounted to move transversely to the direction of movement of the die holder thereby to bring the work-supporting portion of the platenunderneath the die or to carry it out from beneath the die and means are provided whereby during thisreciprocating movement-oftheplaten thetype or dies are inked.

The die members 17' present embodiment of .the

As herein shown the bed member 220 is provided with-the dove-tailed rib or guideway 24 on whichthe-platen 230is mounted toslide, and I have hereinshown 'th'eplat en as provided with the arm 25;ada pted.to engage the two stop pins 26 which extend laterally from the bed and by which thereciprocating movement of .the platen is limited.

The ink is applied to the type by e a -is EfQH 2mhiai -areataas tic moves with the platen 230so, that when the platen is withdrawn into the dotted line position Fig. 1 to receive a fresh piece of work, the inking roll will be carried under and against the type thereby inking the latter. In the present embodiment, the inking roll is rotatably mounted in two standards 27 which are proyided with stems 28 that are supported in bosses 29 formed on the platen, said stems being arranged to have vertical movement in the bosses, springs 30 surroundin the stems being employed for yieldingly holding the standards in their elevated position. The reason for making the'standards yielding is to permit the inking roll to yield slightly as it passes under the type 18. The bed 220 carries a rotatable inking plate 31 on which the ink is placed and from hich it is transferred to the inking roll. aid plate ismounted to be turned slightly at every reciprocation of the platen,

and is situated so that the inking roll will roll over it as the platen is moved. In this way any ink which is applied to the plate 31 will be uniformly spread over its surface and applied to the inking roll and the roll I will be freshly inked each time that the platen reciprocates.

To provide for intermittently turning the plate 31, I have provided a ratchet wheel 32 which is rigid with the plate and is situated I to be engaged by a pawl 33 carried by the platen so that upon each backward movement of the platen the plate will be given a slight turnin movement. The construction "is such that t e turning of the plate will be accomplished while the roll is in contact therewith.

The plate 31 may be rotatably mounted in the bed 220 in any suitable way. As herein shown said plate has depending therefrom a pivotal shaft 34. which is supported in a bearing 35 carried by the bed and which rests on an adjusting screw 36 by means of which the plate may be adjusted vertically.

The bed 220 is mounted for vertical adjustment so as to permit the platen to be positioned'properly for different thicknesses of work. As herein shown said bed is mounted to slide vertically on a dove-tailed guide 37 formed on the standard 3 and it is adjusted by means of an adjusting screw 38 which extends loosely through a boss or bearing 39 projecting from the standard and has a hand wheel 40 screw threaded 'thereonto. This adjusting screw 38 carries a collar or nut by hand, during which movement the inking roll 2T0 passes under and inks the type; or embossing die 18. When the platen is 111i the dotted line position the work-supporting portion thereof is withdrawn from under, the die holdcrso that the work to be print-l ed or embossed may be readily placed thereon. rVhen the workis properly positionedi the platen 230 is moved 'back into the posi-\ tlon shown in Fig. 1, during thefirst part'ofi which movement the roll again engages the; die=14 and during the last part of which} movement the inking roll rolls over the plate; 31 which is simultaneously turned, thereby} giving the inking roll afresh supply of inkJ When the parts are in the position'shown in? full lines Fig. 1, the'work is properly posi-j tioned under the die 18 and the driving. mechanism is set in operation thereby caus-i ing the die to be depressedinto engagementl with the work thereby to imprint or embossl the latter. Y

The machine hereln illustrated is .especially designed for imprinting the name of the'manufacturer, or name of the shoe, or some other identifying mark in gilt letters on the inside of the shoe upper, and to do this I propose to use a gilt or gold ink, and in order to make a lasting impression I find it is desirable to heat the dies while they are acting onthe work. I have accordingly provided means whereby the die holder and dies carried thereby may be properly heated. As one convenient means for accomplishing this, I provide the die holder with a cavity extending centrally thereof in which is placed an electric heater 45 which is connected to and controlled by a suitable switch 46 to which the conductor cords 47 extend. The switch 46 may be of any suitable variety adapted to turn the current off from or on to the electric heater 45, and'the heater 45 may be of any usual construction adapted to accomplish the desired object. that where the die is heated in this way it is possible to use ordinary gold paint for the ink with which to make the impression, that is paint which is formedby mixing a bronze or gold powder with a properoil or other liquid vehicle. Where this gold paint is used, the ink-distributing plate 31 is im-' portant because inking material of this nature dries and hardens very quickly and said plate forms an eflicient device forkeeping the ink stirred and preventing' the gold powder from separating from the oil or other liquid vehicle. Under some circumstances it may be desirable to merely burn. the impression into the sole of'a shoe, and this can be accomplished with my machine by using the work support shown in Fig. 5. This work support comprises a body 60 which is to be substituted for the bed 220. This body has a horn 61 extending therefrom over which the shoe may be placed soas tobring the sole in proper position to receive the impression from ,the type.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is Ina device of the class described, the combination with a stand having an overhanging head, of a plunger movable vertically in said head, a die-holder v sustained by the plunger, a bed extending laterally from the stand, an inking plate rotatably mounted in the bed, a laten slidably mounted horizontally on said bed, two standards: sustained by said laten, an inking roll carried bythe standar s, springs for yieldingly holding the standards in elevated position, a projection extending laterally from the stand, an adjusting screw extending loosely through the projection and carrying a nut, a spring confined between the nut and the bed for yieldingly supporting the latter, and means for rotating the nut whereby the bed may be raised or lowered,

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

FRED A. PUTNAM.

Witnesses:

E. O. LONGFELLOW, R. S. PREBLE.

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