US864350A - Type-writing machine. - Google Patents

Description

. PATENTED AUG. 27, 1907.

No. 864,350 V F A: TYPE WRITING MAGHINE.

APPLICATION FILED 1.11.1904. V

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No.86 4,35O. PATENTED AUG. 27, 1907.

' P;A.YOUNG.

TYPE WRITING MACHINE;

7 APPLICATION FILED MAB.11.1904.

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tion,

. diagrammatically illustrated in-Figs. 1 and 2. Key

UNITED, sums;

PATENT OFFICE.

FRANK A. YOUNG; OF SYRACUSE, NEW YORK, ASSIGNOR To THE MONARCH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW'YORK.

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Specification of Letters Patent;

Patented Aug. 27, 1907.

Application iiled larch 11,1904. Serial No- 197,658-

vented certain-new and useful Improvements in Type- 7 Writing Machines, of which the following is a specifica- My invention relates to means for effecting a relative shift between the printing instrumentalities and the platen for upper and lower casewriting, and the object of said invention is to provide simple and efficient means of the character specified and in which 7 ence characters designatelike parts in the various views,-

Figure 1 is a vertical iront to rear sectional view of one form of typewriting machine embodying my invention. Fig; 2 is a'vertical transverse sectional view of the same taken on the line SIP-4.6 of Fig. 1 and looking in the direction ofthe a'rrow'at said line, and with certain of the parts omitted Fig. 3 is an enlarged detail plan view of a portion of the shifting andlocking' mechanism to be hereinafter more fully described. Fig. -4 isa detail vertical transverse sectional'view ofportions of the shifting and locking mechanisms the section corresponding to that shown in Fig! 2, and the view illustrating the disposition of the parts when they are locked in the-shifted position. Fig. 5 is a like view of the same showing the parts in the positions they assunic when the teniporary shift key isdepressed; and

, Fig; 6 is a transverse sectional view ofthe parts shown in Fig. 3, the section being taken on the line yy in said figure and looking inthe direction of the arrow'at said line. r v

The frame of the-machine comprises a base 1,-corner posts 2 and a top plate 3 which is surmounted by a suitable carriage (not shown) that'supports a platen' levers 5 are pivoted at 6 in the base of the machine and are each pivotally connected," at"7 to an upright sub-lever 8 that is slotted at its lower end portion,

as indicated at 9, for the reception of a fixedtransverse fulcrum bar-10 extends beneath the keylevers and is secured to the frame of the machine. The.,upper end of eachsub-lever is pivoted at 11 to a forwardly extending link,12 which'has its forward end pivoted at 13 to a type bar 14. The type bars are seg-v of the United States, and a residentof Syracuse, in thee "county of Onondaga and State of New York, have inm'entally arranged and supported at their rear ends on a pivot wire 15 in the type bar segment 16; the type 'bars working in slots 17 in the segment. The forward endsof the type bars are supported upon a pad 18 which receives its support from arms 19 that extend forwardly from the type bar segment. Type bar restoring springs '20 are each connected at one end to a depending finger 21 .which projects from the support for the pad 18.

The/opposite end of each spring is connected to a link 22 that in turn is pivotally connected at 23 to the associated type bar.

" The type'bar segment base-grooved guide 24 at each balls 25 that are likewise received in'a grooved guide 26 secured to thef rame of the machine so that the segment side thereof which receivescoiiperatinganti-friction may receive a vertical movement for upper and lower case writing The segment has ears or lugs 27 that project forwardly therefrom and have threaded openings 'therethrough for cooperation with set screws 28, the

oppositelydispos'ed inwardly extendingends of each pair of which constitute abutments for cooperation with a fixed abutment or bracket 29 that is secured by screws 30 to a fixed guide 26. A lock-nut 31 may be employed on each screw to secure it in its adjusted position; It willbe understood that this construction deupper and lower case position thereoiand that screws 28 may be adjusted to afford the proper'positioning of these'gment in either of such positions, The segment pivots 33 that connect the'segmcnt, to upwardly extending links 34, the lower ends of said links being pivotally connected at 35 to rearwardly extending crank arms 36 ings in'the base 1 of the machine and are secured in their adjusted positions by lock nuts;39, 39". The lock nut termines the proper position-of the segment in both the which project from a rock shaft 37 which extends beneath the key levers and is mounted at its ends on cone. bearing screws 38 that are'received in threaded Open- 39 has ratchet teeth 40 on the inner end or face thereof '4 that cooperate with corresponding ratchet teeth on a sleeve 41 that'is loosely mounted on the rock shaft 37.

and is connected to one end'42 of a coiled spring 43 that surrounds the rock shaft and has its oppositeend connected to the rock shaft'or to one of the rearwardlg projecting arms 36 thereof.

Extending forwardly from the shaftis a crank arm 44 that has an upper curved face 45 which cooperates with the lower edge of a so-called temporary-shift key lever, 46 which is fulcrumed' onthe pivot rod 6. The crank arm 44 has a yoke 47 secured thereto and the arms of V which are located on opposite sides of the lever 46 to insure-the cooperation of the key leverwith the crank r arm 44. Proj ecting laterally from the crank arm.44 is a' pintle 48 which can'ies .an anti-friction rolfr-49that is tively to the locknut 29 enables this tension of the spring .43 to be varied at will.

Should the operator desireto shift the type bar segment and to allow it to be restored to normal position after one or more upper case characters have been written, it is merely necessary to depress the so-called temporaryshift key lever 46 which will cause the rock shaft 37 to, be turned, thereby elevating the segment and the parts carried thereby. When pressure of the finger on the key lever 46 is released, the segment willdrop of its own weight to the normal or lower case position and the key lever and associated parts will be restored to their normal positions. A depression of the key lever 50 will cause a corresponding depression of the lever 44 through the pintleand'anti-friction roller49 which are connected to the lever 44 and project beneath the lever 50, so that the segment may likewise be shifted by a depression of the permanent shift key lever in the manner hereinbefore described.

In order to secure the parts in their shifted positions when the permanent shift key lever is depressed, I have provided a locking latch which cooperates with the lever 50. Thus, a bracket 51 issecured by screws 52 to a cross bar 53 that constitutes a part of the frame or base of the machine. This bracket has upwardly projecting arms 51 in which a rock shaft 54 is journaled.

The rock shaft is surroiinded by a coiled spring 55 secured to one of the bracket arms 51, asindicated at 56, and at its other end is secured to a collar 57 fixed to the rock shaft on the inner side of the other arm' 5'l -of the bracket. The rock shaft 54 is enlarged at 58 where it -extends beyond the rear bracket arm 51, and said enlarged portion is split or bifurcated at 59. A threaded opening passes transversely through an enlarged portion at the termination of the bifurcated part thereof for the reception of the stem of a so-called locking latch 60. A headed screw 61, which isthreaded only near the end thereof as indicated at 61 extends transversely through an" opening in the enlarged portion 58 at the l bifurcated end thereof and at right angles to the stem of the locking latch and to the slot 59. The

cure the locking latch in its adjusted position. When the screwfil is partly unscrewed to relieve the pressure 0n the bifurcated portion 58 ofthe shaft, the locking latch maybe turnedin its threaded opening, thereby effecting a longitudinal adjustment of the locking member, thus slightly elevating or lowering the locking header abutment 62. Thislocking head is adapted platen; '2.

to coiiperate with .the top of the permanent shift key I lever and to maintain it depressed as indicatedin Fig. 4

and the tension of the spring 55 is exerted to turn the lower end of the locking latch in the direction of the arrow in Fig. 1 so that when the permanent shift key lever is depressed, the head of the locking latch will be forced over the top of the key lever and prevent its return to normal position.

An upwardly extending hook 63 or releasing device is secured to the temporary shift key lever 46 and has its stem bent at 63 so that the hook proper may be brought to a position where it will cooperate with the outwardly extending portion of the stem of the screw 61 when the key lever 46 is depressed. When the parts are in the positions represented in Fig. 4, the type s'egment is locked in its shifted position. A depression in the direction of the arrow in Fig. 5, thereby releasing the permanent shift key. from its depressed position i and allowing the segment to drop to its normal or lower lever 50 tobe restored to its caseposition and the key normal pos ition.

From the foregoing description it will be seen that I have provided simple and eflicient means for effectinga relative shift betweenlthe printinginstrumentalishifted segment from its locked position,

t It will likewise be seen that a'depression of the temporary shift key is effective to positively actuate the'locking latch andto release the An adjustment of the locking latch 60 regulates the locking engagementwith the permanent shift key le- 'ver 50 so as to compensate forany adjustment of the set screws 28 which determine the position of the sogmentin both the upper and lower case position thereof,- and the locking latch can thus be rendered effective under the different adjustments o the set screws 28 and the different positions of the segment in both its upper and lower case positions.

Various changes may be made without departing from the spirit of my invention.

What I claim as new and desire to secure by Letters Patent, is:-

1. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting a relative shift between said type bar-sand platen for upper and lower case writing, said means comprisin a shift key lever, a spring actuated latch that is pivoted to a fixed portion of the machine and which is adapted to engage said key lever and maintain it depressed, and a shift key lever arranged beside and adjacent to said first mentioned shift key lever and carrying an engaging piece that is adapted to be brought into direct engagement with said latch to move it to one side andfithereby release the depressed shift key lever.

and lower case'wri'ting, said means comprising a shift key lever, a spring actuated latch that is pivoted to a' fixed portion of the machine and which is adapted to engagethe top of saidshift key lever and maintain it depressed, 'and a a second shift key lever arranged beside and adjacent to said first mentioned key lever and which operates directly on the latch for releasing said latch from the first mentioned key lever.

In a typewriting machine, the combination of aplaten, a series of type bars, and means for effecting a relative shift between said type,.bars and platen for upperl and lower case writing, adjustable means for regulating the extent of shift, said shifting means comprising a key lever, and a spring actuated latch that is pivoted to, a fixed portion of the machine and which is adapted to engage said key lever and maintain it depressed, and having an adjustable locking abutment for regulating the engagement of the latch to correspond to the adjustment of the extent of shift.-

4. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting r. relative shift between said type bars and platen for upper and lower case writing, said means comprising two key levers arranged side by side, a spring actuated locking latch that is pivoted above said key levers to a fixed part of the machine and coliperatrs with one of said key levers to maintain it depressed, and a releasing device carried by the other lever and adapted to contact with and move said locking latch to releasing" position.

5. In a typewriting machine, the combination of a platen, a series of type bars, and means for effecting a relative shift between said type bars and platen for upper and lower case writing, said means comprising two key levers arranged side by side, av spring actuated locking latch that is pivoted ton-fixed part of the machine and cooperates with one of said hey levers to maintain it depressed, a releasing device carried by. the other lever and adapted to contact with and move said locking latch to the releasing position. and means for effecting a relative ad- Justment between said locking latch and the key lever with which it cooperates.

6. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting a relative shift between said type bars and platen for upper and lower case writing, said means comprising two key levers, a spring actuated locking latch thatis movably' mounted on a fixed part of the machine and contacts with one of said key levers and maintains it depressed, said locking latch moving into and out of locking engagement with its associated key lever in a plane substantially at right angles to the plane of movementof said associated key lever, and a releasing device carried by the other lever and adapted to contact with and move said locking latch to releasing position. r

7: In a typewriting machine, the combination I of aplaten; a series of type bars; and means foreifecting a relative shift between said'type bars and platen for upper and lower case writing, said means comprising a rock shaft," connections from said rock shaft to the part to be shifted, a single crank arm extending from said rock shaft, a key lever cooperating with said crank arm'to rock said shaft, a locking latch, a second key lever operative to depress said crank arm and with which said locking latch cooperates to maintain the key lever depressed, and a releasing device carried by said first mentioned key lever and coliperating directly with said locking latch to release it.

8. In a typewriting machine, the combination of a platen, a series of type bars, and means for effecting a relative shift between said type bars and platen for upper and lower case writing, said shifting means comprising two key levers either of which is effective to bring about a relative shift between the type bars and platen and which ock shaft and the part to be shifted.

9,11 a typewriting machine, the combination of a platen, a series of type bars, and means for effecting a relative shift between said type-'barsand platen for upper and lower case writing, said shifting means comprising two key levers either of which is effective to bring about a relative shift between its type bars and platen and which are arranged side by side a locking latch pivoted to a fixed portion ofthe machine and having an adjustable part that coi perates with one f said ke; levers to maintain it de pressed, :1 releasing device carried by the other key lever and adapted to contact with the locking latch and move it to the releasing position, a rock shaft, a crank arm that extends from said rock shaft and with which both of said my levers coiiperates, and connections between said rock shaft and the part to be shifted.

10. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting a relative shift between said type bars and plat'en for upper and lower case writing, said means comprising a key lever. a locking latch comprising a spring actuated rock shaft carrying an abutment that contacts with said key lever and maintains it depressed, means for effecting a relative adjustment between said abutment and key lever, a releasing device that contacts with said locking latch and movesit to releasing position, and a second key lever that controls said releasing device.

11. In a typewriting machine, the combination of a" platen: asei-ies of type bars; and means for effecting'a relative shift between the type bars and platen for'upper and lower case writing, said means comprising a rock shaft, connections from said rock shaft to the part to be shifted, a single crank arm extending from said rock shaft, :1 key lever coliperating with said crank arm to rock the shaft, .9. spring pressed locking latch carried by a fixed portion of-the machine. a second key lever operative to actuate said crank arm and with which the lo'cking'latch cooperates to maintain the key lev r depressed, and means carried by the first mentioned key lever and coo erating directly with said locking latch to release it.

12. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting a relative shift between said type bars and platen for upper and lower case writing, said means comprisingh rock shaft, connections from the rock shaft to the part to be shifted, a single crank arm extending from said rock shaft, a key lever coiiperating wi h said crank arm to rock the shaft, a spring pressed locking latch pivoted to a fixed portion of the machine, a second key lever arranged beside the first mentioned key lever and operative to actuate said crank arm and with which the latch coiiperates to maintain the key lever depressed, and a releasing device carried by said first mentidned key lever and coiiperating directly with said locking latch to release it.

13. In a typewriting machine, the combination of a platen; a series of type bars; and means for effecting a. relative shift between said type bars and platen for upper and lower case writing; said means comprising a rock shaft, connections from the rock shaft to the part to be shifted, a single crank arm extending from said rock shaft,

a key lever cotiperating with said.crank arm to rock the shaft, :1 spring pressed locking latch pivoted to a fixed portion of the machine, a second key lever arranged beside the first mentioned key lever and operative to actuate said crank .arm and with which the latch coiipera tes to main tain the key lever depressed, a releasing device carried by said first mentioned key lever and cooperating directly with said locking latch to release it, and means for effecting a relative adjustment between said locking latch and the key lever which is maintained depressed thereby.

14. In a typewriting machine, the combination of a platen; a series of type bars; and means for efi'ecting a relative shift between said type bars and platen for upper and lower case writing, said means comprising a rock shaft, connections irom said rock shaft to the part to be shifted, a single crank arm extending from said rock shaft, I a pair of key levers arranged side by side and cooperating with said crank arm to rock the shaft, :1 spring pressed latch pivoted above said key levers to a fixed portion of the machine, said locking latch contacting with one of said key levers to maintain it depressed, means carried by the other of said key levers and coiiperating directly with said locking device to release it, and means for effecting a relative adjustmentfbetween said locking latch and the key lever which is maintained depressed thereby.

15. In a typewriting machine, the combinationrwith' a platen and a series of type bars, of means for eifecting a" relative shift of said platen and series 'of type bars, said shifting means comprising two shift key levers arranged side by sidejj a locking latch pivoted toswing on an axis parallel to said key levers and having 2. depending partada'pted to contact with oneof said levers and to lock ,it in depressed position, said lockinglatchhaving also a horizontaliy projecting'part; and the other t said key levers having a part adapted,'when said key lever is depressed,

- tocontact with the horizontally projecting part of said looking latch, andtoTock said locking latch about its pivot'to release the first mentioned key lever.

' 16.1111 a typewriting machine, the combination of. a rock-shaft having. a split end; a latching arm threaded through the split end'of said rock-shaftso as to be adjustable; a' shouldered binding screw threaded through said rock'shaft and adapted totighten the split end of said rock shaft: about said latching arm to secure said latching arm. in adjusted position, said binding screwhaving an elongated shank; a shift key lever adapted to be locked in depressed position by said latching arm; and a I second shift key lever having a part adapted to engage the elongated'shank of said binding screw to.,, rock'said rock shaft and release the first mentioned keylever.

1?. .Ina typewriting niachine, the combination of two' 18. In: a type'writingmac hine and-in a case shiftingmechanism, the combination of two shiftkey levers, a pivoted locking device for o ofsaid ,ky levers and having its pivot arranged substantiaj i i parallel with said key lever, said'lockingdevice havin ga parthdaptedto swing transversely of the kev levers to engage and lock one of said keyleversa'nd having also another part adapted-to be engaged bythe" other one-of said .key levers and to cause the 'unlocking'of-the locked key'lever upon the depression ofthe unlocked keylever.

.Signed ,at Syracuse, in the county of: Onondaga, and State of New York, this 9th day of March A. D: 1904.

FRANK 'A. YOUNG.

Witnesses:

Pnigcr-Rxnmos, CHAS. H. Cooxn.

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