US904177A - Type-writing machine. - Google Patents

Description

W. E. BURNETT.

TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 25, 1907.

Patented Nov. 17, 1908.

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1415 ATTURNEY- W. E. BURNETT. TYPE WRITING MACHINE.

APPLIOATION nun SEPT. 25, 1907.

Patented Nov. 17,1908.

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1-ll5 ATTORNEY W. E. BURNETT.

TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 25, 1907. 904, 1 '77. Patented Nov. 17, 1908.

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WILLIAM E. BURNETT, oF ILION, NEW roan, ASSIGNOR TO WYOKOFF, SEAMANS a BENEDICT, or ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITIN G MACHINE.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed. September 25, 1907. Serial No: 894,623.

a citizen of the United States, and resident.

of Ilion, in the county of Herkimer and statelof New York, have invented certain new and useful Improvements in TypeiVriting Machines, of which the following is a specification.

I My invention relates to typewritin ma-v chines and more particularly to tabulating mechanism, and has for its main object to provide an improved denominationaltabulator.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following specification and particularly pointed out in the appended claims. 4

In the accompanying drawings wherein like reference characters indicate corresponding parts in the various views, Figure 1 is a si e elevation partly in section of a typewriting machine embodying my invention.

Fig. 2 isa detail fragmentary rear elevation showing a portion of the carriage releasing devices controlled by the tabulating mechanism. Fig. 3 is a horizontal sectional view of the machine, the section being taken below the top plate of the machine, and a part of the base being shown broken away. Fig. 4 is a fragmentary enlarged detail front elevation of a portion of the tabulating mechanism to be hereinafter more fully described. Fig. 5 is a side elevation of the parts shown in Fig. 4 with the parts in section.

I have illustrated in the accompanying drawings only so much of a typewriting machine as is necessary to illustrate my invention.

- This invention is in the nature of an improvement on the invention of Oscar NVoodward disclosed in his pending application, Serial No. 297,026.

The frame of the machine comprises a base 1, corner posts 2 and a top plate 3. Fixed rails at and 5 are mounted on standards 6 which project upwardly from the top plate and receive anti-friction bearing rolL ers 7. These rollers cooperate with grooved rails 8 and 9 on the carriage 10, which supports a cylindrical platen 11. The carriage has rearwardly extending pivoted arms 12 which support a feed rack 13. This feed rack meshes with a feed pinion 14; connected to the forward end of a shaft 15 which turns in a bearing 16 supported on the top plate of the machine. Connected to the rear end of said shaft is an escapement wheel (not shown) as usual. The usual feed dogs cooperate with the escapement wheel but I have not deemed it necessary to show the feed dogs nor the manner of actuating the same since it is not essential to an understanding of my present invention. Rearwardly and upwardlyextending bracket 'arms 17 secured to the carriage support a column stop bar 18 on which column stops 19 are detachably and adjustably secured. A tabulator frame 20 is secured in place at its upper end by screws 21 which extend through openings in lugs 22 depending from the 'top plate and engage in threaded openings in the tabulator frame. The lower end of the tabulator frame is recessed at 23 for the reception of upstanding pins 24 secured to the base of the machine. The heads of these pins are rounded or spherical in order that they may constitute pivots on which the tabulator frame may be swung rearwardly from the position shown in Fig. 1 when the screws 21 are removed.

The talmlalor frame has a pivot rod 25 headed at one end and threaded at the other and extending from side to side of the tabulator frame 20, the threaded end entering a tapped hole in the tabulator frame. This rod constitutes a pivot for upright denomi' national stop levers 26 that curve downwardly and forwardly from the pivot 25 and connect at their lower ends with push links 27 actuated by bell crank levers 28 pivoted at 29 and connected to key stems 30 having tabulator keys 30. To each bell crank lever is connected one end of a contractile spring 31, the opposite end 32 of which is secured to a sheet metal-guide bar 33, which extends from side to side of the machine and is secured at its ends to the base 1. The upper ends of the denominational stop levers are bent or formed to project forwardly to provide denominational or decimal stops 34, although the stop levers may be connected in any other suitable mannor to the denominational stops. From an inspection of F ig. 4 it will be understood that the denominational stop levers 26 fan outwardly at their lower ends in order to properly connect with the actuating links 27. Each side of the tabulator frame 20 is provided with a forwardly extending arm 35 to which a universal release bar 36 is pivoted at 37. The release bar comprises upwardly bent integral arms 38 which are piv-.

oted to the tabulator frame and a lower cross bar connecting the two arms 38, which cross bar constitutes the universal release bar proper. The bar 36 is apertured to receive the hook-like end 39 of a rearwardly extending link 40 pivoted at 41 to a crank arm 42 secured to a rock shaft 43 which is mounted at its ends on pivot screws 44 threaded into the base of, the machine. The rockshaft 43 has a crank arm 45 secured thereto near the right-hand end. This crank arm is 0on nected to-one end of a coiled spring 46secured at its other end to aneye 47 attached tothe base of the machine so that pressure of the spring is exerted to normally main-' tain 'the 'universal release bar 36 and, the parts connected therewith in the positions shown in Fig. l. i A third crank arm 48 is secured to the rock shaft and is curved downwardly and then forw-ardl wardly and is connected" at its ee end to a link 49 pivoted at 50 (Fig. 2) to a carriage release lever 51, pivoted at 52 to a lug 53 which extends upwardly from the. top

plate of the machine. The opposite end of the lever is provided with a release shoe 54 bent at right angles to the plane of the lever and extending forwardly beneath the feed rack 13 of the machine. The construction is such that a depression of any'tabulator key '30 is effective to move the lower end of the associated denominational stop lever 26 rear wardly. This movement is effective to project a corresponding denominational stop forward into the path of a column stop 19 to arrest the carriage when the latter. is released. This same movement ofthe denominational stop lever effects a rearward movement of the universal release bar 36 which transmits a movement through the link to the rock shaft 43, and this movement is eifective to move the crank arm 48" wardly, thus operating the release lever 51 to'lift the feed rack 13 out of mesh with its feed pinion l4. The carriage being 1;.thus released from. its ef'scapementmechanism will then move 55a; under the powerbf the usual spring, "(nqt shown) 'nn'til arrested by the ,peration ofthe projected denominational stop with-one of the column stops. The construction thus-far described is essentially the same as that disclosed in the applicatio n'lof Oscar Woodward .hereinbefore referred to. r

,In accordance with my present invention I provide guiding and spacing means upon the universal release bar itself for coiipera- "non with the denominational stop levers.

Thus be seenlthat the cross bar 36 which constitutes the universal release bar gfiproper is bent upwardly at its longrtlidmal downedgesas indicated at 55 to provide a bearing for a sheet metal comb plate 56 riveted or otherwise connected as at 57 to the release bar 36. The plate 56 extends forwardly beyond the front edge of the bar'36and is slotted at 58 for the reception of the lower ends of the denominational stop levers 26. The depth of the slots is such that they do not interfere with the levers cooperating di- "rectly with the bar 36, but maintain said levers properly spaced apart and guide them in their movements fore and aft of the machine. The depth or length of the slots and the relation of the parts are such that when a tabulator lever is vibrated to move the bar 36 rearwardly, in order to eifect a release of the carriage, this movement is insufiicient to displace or disengage the guide comb from cooperative relation with the other denomitional'stop levers, notwithstanding the fact thatthe guide comb moves rearwardly with the actuated stop lever.

By this invention I have provided simple and efficient means for maintaining the lower ends of the denominational stop levers properly spaced apart and for guiding them in their movements fore and aft of the machine. This guiding means being carried by the tabulator frame it may be introduced into and removed from the machine with 5'15 .the tabulator frame and the parts carried thereby, thusfacilitating the assemblage of the parts and the introduction of the tabulavtor mechanism into the machine.

-Various changes may be made in the def 1 tails of construction without departing from my invention. 1 What I claim as new and desire tosecure by Letters Patent, is 1. In a typewriting machineand tabulat- 1,05 ing mechanism, the combination of denominational actuating devices, a universal release bar operative thereby, and. guiding means carried by said universal. release bar and cooperative'with said denominational actuating devices.

2. In a typewriting machine and tabulating mechanism, the combination of a series "of denominational stops, a series of actuating devices for said stops, -univeisar'ie Qlease bar'operative by said actuating device and guiding means carried bysaid universal release bar and cooperatiue'iwith said actuating devices to guide them in their movements 3. In a typewriting machine and tabulat-' in'g mechanism, the combination of a series of denominational stops, a series of'actuating devices for said stops, a universal release bar 0 erative by said actuating devices, and a gui 'e comb carried by and movable with said universal release bar, said actuating devices being received in the' slots in said guide comb; Np i 4.111 a typewriting machine, the combinalevers cooperate, and a guide comb carried by said universal release bar and cooperative with said levers.

5. In a typewritmg machine, the combination of a series of denominational steps, a

series. of u right key actuated levers therefor, a tabu ator frame in which said levers are fulcrumed, carriage releasing mechanism including a universal release bar with which said levers cooperate, said universal bar being pivoted on said tab'uIator frame, and a guide comb carried by said universal release bar and cooperative with said levers.

6. In a typewritin machine, the combination of a series of enominational stops, a series of upright key actuated levers therefor that move at their lower ends towards the rear of the machine to project the de nominational stops, a tabulator frame detachably connected .to the frame of the machine and in which said levers are fulcrumed,

carriage release mechanism 0 erated at each actuation of a denominationa stop and comprising a universal release bar pivoted to the tabulator frame and operated by said levers, and a guide comb carried by said universal release frame and cooperative with said levers to space and to guide them in their movements.

7 In a typewriting machine, the combination of a series of denominational stops, a series of key lease bar made of sheet metal and bent at itsends .to provide arms by which said universal release bar is, ivoted, and a sheet metal guide comb carried by said-universal release bar and cooperative with said levers -to space and to guide them in their move ments.

8. In a typewriting machine and tabulating mechanism, the combination of denominational actuating devices; mounted guide comb having elongated teeth for said denominational actuating devicesi the said actuating devices when operate moving towards the back of the comb; a

carriage releasing device; and a tabulator' actuated levers for actuating 'Sitld denomlnational stops, a universal re-- a movably I frame detachably connected. to the. main frame of the machine and carrying said denominational actuating devices, the movable guide comb, and carrla ereleasin device, whereby the tabulator ame togetier with the said parts carried thereby ma. as an entirety be attached to or detache from the machine.

Signed at Ilion, in the county of Herkimer, and State of New York this 23rd day of September A. D. 1907.

WILLIAM E. BURNETT.

Witnesses:

' ARTHUR H. STONE, P. H. PUTNAM.

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