US1029324A - Type-writer. - Google Patents

Description

Z G. SHOLES.

TYPE WRITER.

APPLIOATION FILED DEC $3, 1910.

Patented June 11, 1912.

2 SHEETS'SHEET 1.

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81mm Mex w m? W M Z. G. SHOLES.

TYPE WRITER.

APPLICATION FILED DEC. 23. 1910.

Patented June 11, 1912.

2 SHEETSSHEET 2.

G] awe w fe a M i, Q M d sported so as to slide is shown at 11.

to said levers and type bars;

com municatc-s.

ZALMON G. SHOLES, OF NEW YORK, N. Y.

T OFFICE.

ASSIGNOR TO ZALMON G. SHOLES TYPE- WRITER COMPANY, A COR'ZORATION OF DELAWARE.

TYPE-WBITER.

Specification of Letters Patent.

Patented June 11, 1912 Application filed December 23, 1910. Serial No. 599,014.

T 0 all whomit may concern:

Be it known that I, ZAIZMON G. Snows, a citizen of the United States, residing in the city, county, and State of New York,- have invented a new and useful Improvement in Type-VVriters, of which the following is a specification.

My present invention relates to certain improvements in typewriter-actions, and the. principal object of the invention is the pro vision of means of this character so constructed and arranged as to promote so far as possible ease of construction and reduc tion of expense, while maintaining a high degreeof eliiciency in the action and endurance of the machine;

My invention is illustrated in a preferred form in the accompanying drawings, where- 1n- Figure 1 is a. rear view of those parts of a typewriter to which my invention relates, and Fig. 2 is a sectional view of the same on the plane 2-2 in Fig. 1.

The frame workot' the machine is shown at 10, and the usual horizontal bar or rod upon which the back of the platen, is sup- At 12 is shown the transverse slotted sector upon which are mounted the type-bars, one of which is shown at 13 in Fig. 2. A nui'nber of key levers are also shown at 14 in said figure. Each key lever,- 14, has an upward extension, 15, which hooks over a hollow supporting bar 16. This bar is made of a piece of tubing with parallel slits 17 on the top of it atregular intervals, and the hooked portions of the different key levers enter said slots, being kept the proper distance apart by the solid portions between said slits. A leaf spring or springs 17 bears down upon the top of the hooked por t-ions ot the key levers, holding them down in the guiding and supporting slits, and opposing the lifting action of the sprii'igs 30.

Motion is imparted to the type bars 13 by transmitting levers 18 and transmitting bars 19; the latter being pivotally connected The lower ex tremity of each transmitting lever 18 has a circular aperture 20 with which a slot 21 The successive transmitting levers are made of thin metal and fit side by side in the slots 22 of the fixed comb 23. Through proper openings in the ends of the comb 23 there passes a flat retaining bar 24 which can be turned with its width either all of the bars 18 are locked-in their re-' 'spective slots 22 in the. comb 23.

By means of screws 25, the comb 23 can be fixed in position on the guides 54. 7

Motion is imparted by each key lever 14 to a corresponding transmitting lever 18 by a slot and pin connection, which is preferably arranged as shown in. Fig. 2; that is to say, the lever 18 is in each instance slotted as at 26, and a short pin 27, fixed to the corresponding key lever enters said sl ot. Each key lever is made of thin fiat metal and preferably lies against the adjacent corresponding fiat transmitting lever 18.

It will be seen that, as any one key lever 14 is tilted downward around the hollow bar 16 as a fulcrum, its pin 27 will ride down the'slot 26in the corresponding lever 18,

tilting the latter around the fulcrum 24E,

and thus acting through the transmitting bar 19 to throw the type bar 13 upward for bringing the type 28 into contact with the platen 29. The spring 30 restores the-key lever to its upper position, shown in Fig. 2, when said lever is released.

A pivoted horizontal bar 31 carries an escapemcnt lever 32 and is actuated by depending arms 33, connected together by the rod 34. This rod 31 rests against the dcpending extremities of the key levers 14, so that, as any one key lever is depressed it forces said rod outward or backward and so acts through the arms 33 to revolve the bar 51 and tilt the lever 32 inward or for ward. An adjusting screw 35 on the lever presses forward the lower end ofan escapemenl dog 36 pivoted at 37. The restoring spring 38 resists the action of the escapcment lever 32 and tends to keep all the parts in the position shown in Fig. 2. A flat spring 3) is fixed to the dog 36, and normally occupies the relative position shown in Fig. 1. This spring is preferably bent as shown and fastened by a screw40 underneath the dog 36, which bears upon a spiral spring 40 which gives whenever meansforward movement of the platen carthe leaf spring 39 is pressed toward thei dog. The escapement wheel 41 tends toi advance in a manner-well known, and is re l leased step by step when the tilting back i and forth of the dog and its spring 39 brings each tooth successively into contact with said dog and said spring. This occurs at each operation of a key lever, and by this rying the paper is controlled.

I prefer to provide a carriage 42,'sliding upon the rod 11 in a well known manner and provided with a horiZontal rack 43, Whose down turned teeth engage a pinion 4 k which turns loosely upon the shaft 45 of the escapement wheel 41. The pinion 44 is provided with clutch teeth, as shown, adapted to engage with similar teeth upon a grooved wheel 46,. adapted to slide. longitudinally upon the shaft45, but so keyed to the same as to always turn with the wheel 41. A spring 47 tends to hold the clutch teeth in engagement. .it suitable intervals along the rack 43 or just above it, sliding pins 48 are provided, and ontheir rear extremities is carried a'clutch shifting bar- 49 which rests Within the groove and on the periphery of. the wheel 46. On a shaft 50 carried by the carriage 42, are fixed fingers 51 which restagainst the pins 48, as shown. The bar 50 can-be tilted by means of the lever 52, or an equivalent device, and the fingers 51 are thus caused to push said pins backward and disengage the clutch between the pinion 44 and the wheel 46. This frees the escape ment wheel from all connectionwith the platen, which can then be slid to right or left at will. Any desired means for causing normal IILOVElTl-Bnt of the platen may be. employed, but, as this constitutes no part ofmy presentinvention, I. have npt shown or described the same.

i It will be seen that, by my construction, the key levers and transmitting levers, together with their supports and the numbers for transmitting movement to the-escapem'ent are all supported together upon a sin-' gle frame comprising the comb 23, thestandards 53 and the bars 16 and 31; This frame is arrangedto slide upon suitable guides 54 fixed to the main frame of the machine, so that all of these parts may be drawn forward together after.merely loosening the screws In' this forward position the adjustment. and assembling of the various parts is facilitated.

YVha-t I claim is- "1. In a typewriter, a transverse supporting bar slitted at intervals and key levers having rearwardrising portions extending up in front. of sa d supporting bar and furupright portions engaging said supporting bar, transmittinglevers operatively connish ed with hooks extending from front to back across said bar within said slits, substantially as described.

2. In a typewriter, a transverse tubular supporting bar slitted on the top at intervals, and key levers having rearward rising portions extending up in front of said supporting bar and furnished with hooks engaging the front edges of said slits in said bar, substantially as described.

3. A typewriter comprising in combination type bars, an escapement lever, a supporting bar, horizontal key levers having nected with said key levers and. with said type bars, a pivotal bar to which said escai'iement lever is fixed, a second bar normally resting against the rear edges of the upright portions of said key levers, and arms connecting said last named 'bars to gether, substantially as .described.

4. A typewriter comprising in combination type bars, an escapement lever, a supporting bar, horizontal key levers having upright. portions engaging said supporting ha'r, transmitting levers operativel connected with said key levers and wit h said type bars, a pivot'al bar to which said escapement lever is fixed, a second bar normally resting against the rear 'edges of the upright portions of said hey levers, arms connecting said last named bars together, aiu'l a slidable carriage upon which all of said bars, excepting the type bars are mount ed, substantially as described,

5. In a typewriter, a fulcrum tube slitted at suitable intervals, key levers having hooks entering said slits, a spring bearing down on said hooked portions for securing said bars, and a spring for lifting each key lever, sub stantially as described.

6. A- typewriter com-prising type bars, a platen, and a spiicing escapment lever, in combination with supporting guides, a frame adaptedto slide back and forth there on, key levers and triifismitt-ing 'means be tween the same and said type bars supported by said slidable frame, and means'110 for transmitting motion from said, key levers to said escapement lever also mounted on said frame, substantially as described,

7. In a typewriter and in combination, supporting guides, a transverse comb carry- 115 ing standards and adapted to slide on said guides, a transverse slitted tube carried by said standards, and key levers and transmit ting levers carried and guided by said comb and tube, Substantially as described.

' ZALMON G. SHOLFS.

Witnesses F. F. CnAiur'roN, K. C. Nina!

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