US1209115A - Type-writer carriage-return mechanism. - Google Patents

Description

E. CASTAEDA. -f TYPEVWRITER CARRIAGE RETUR MECHANISM.

lm-,mwa me. 19,1916.

AAPPLICATION FILED MIVAR. 3. 1916.

` 2 SHEETS-SHEET 1.

' EDUARDO CASTAEDA,

F MONTEREY, MEXICO, ASSIGNOR OF ONE-HALF' T0 JOSE runnen, or MONTEREY, Mexico.

TYPE-WRITER CARRIAGE-RETURN MEGHANISM.

-hereby declare the following tobe a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the fsame, reference being had to the accompanying drawings, and to letters or jgures of reference marked thereon, which form a part of'y this specification.

My invention relates to carriage return mechanisms for attachment/.to typewriting machines, and has for its object to effect the ,return or`movement of the carriage to and fro by a short movement of a lever, key,

or the l1":"e,'f,or"the purpose of returning the carri;.ge tof'position for writing a new line, of reciprocating the carriage quickly to facilitate the reading of matter' already written, of setting the carriage at any desired point4 along the line, or of stepping the carriage forward, in lieu of actuating the usual letter spacing bar.

In order to maintain a short movement of the lever, key, or other actuator, I provide a planetary mechanism Jfor taking up the flexible connection connected to the c'arriagel In order that my inventionomay be fully` understood, I have shown my invention applied to a. well known typewriter in the accompanying drawings, wherein like parts are similar y designated, and in which- Figure 1 is a plan view `oi so much of a itypewriter as is necessary to illustrate my invention, the carriage return mechanism being shown in plan; Fig. 2 is aside elevation ot the lever mechanism at the right hand side of the machine; Fig. 3 is a sec-v tion on line 2-2, Fig. 2. 4 is as elevation of the mechanism at the lefthand of the carriage for actuating the escapement release. Fig. 5 is a side elevation thereof; Fig. 6 isa modification of Fig. 3, and Fig. 7

is a lan view of one form of'su ortino D or frame plate. v

The lever mechanism at the right hand side of the machine comprises any suitable form of frame-plate 11, Fig. 7, shaped to conform to the machine to Awhich the mech- Specification of Letters Patent.

Patented Dee. 19, 191e.

Application led March 3, 1916. Serial No. 81,895.

anism is to be applied.l In the mechanism `herein shown, the frame-plate of sheet metal is provided with a rectangular `slot 2,

adapted to take around a bar a forming partof the typewriter, and is also providedv with a hole for thereception' of a bolt b also forming part of the typewriter.

The bar a, is provided with a nut c by means of which and the bolt b the plate is held in position on thev typewriter. The

base plate is provided with an inwardly.

bent shoulder or stop 3' for the arcuate rack, andan outwardly bent stop 4 adjacent thereto for the actuating lever. This plate has an upright extension 5, and a lateral, substantially horizontal extension 6 forming a continuationA ofa' portion l7 bent at right angles to the portionv 5. The portions 5 and 7 are substantially perpendicular to the base 1. Mounted in the upright portion is a shaft or bolt 8, Fig. 3, and on this bolt is placed a sleeve 9, and a rack 13, both held between a washer 10, adjacent the boltv head, and anut 11 on the end of the bolt, said nut having a collar or bearing 12.

On the bolt 8 is placed an arcuate rack 13; 'the forked ends 14C of a lever 15 also pivot around the bolt, and between the por-v tion 5 of the base-plate and on the right hand fork end 14 is placed a coil-spring 16.' Mounted on the fork arms 14 of lever 15 are a pinion 17 and a cord pulley 18 rigidly connected together. One end of the coilspring 16 hooks over one of thefork arms 14;, as shown at 19, Fig. 2. On the portion 5 of the frame plate 1 are mounted two guide pulleys, 20 and 21, between which is guided the flexible connection` or cord 22 to a horizontal pulley 23 mounted on the horizontal frame extension 6. This frame extension 6- is provided with a stationary cord guide 24 having an'V eye or hook eind 25, more clearly shown in Fig.A 2; the cord then passes in front of the carriage and is4 bent at substantially righbangles thereto.

. detachably connected, andv also an escapement disengaging lug in the form'of a lever whose nose36 is arranged to engage the escapement release 'button g lever, or the like, on the carriage. This button, lever, or the like eii'ects` the'.disengagement of the carriage rack and escapement mechanism of the typewriter so as to permit the carriage to be freely moved. When the lever 35 is moved to the dotted line position, Fig.,4, the'escapement button g is not actuated by 'a pull on Ithe cord 22, and the carriage is returned inthe customary manner without disengaging the rack 4 and escapement mechanism In Fig; 6I have shown a modificationin lieufof lever 35 on the end of the arm 30a. In this form I secure to the arm 30Il a short cylinder 37 having a notch 38 therein.

l Loose within this cylinder is a smaller sleeve 39 provided with a pin 40 arranged to enter the slot or notch 38. Screwed into the sleeve 39-is a screw 41 having a head 42, and on the screw is a spring43 included between its head and a washer 44, said washer abutting against the end of the cylinder 37. As shown in Fig. 6, the pin 40-rests against the right hand edge of cylinder 37 and holds the-screw 41 in position to engage the button g. By rotating the sleeve 39 so that the pin ,'40 will be opposite the slot 38, the spring 43 will draw the pin 40 into said slot or notch vand permit the screw 41 to move away from button g a distance suflicient to prevent engagement therewith when the cord 22 is drawn. By rotating the screw- .41 it can be adjusted to project to a greater orless extent from sleeve 39, so as to comfpensate for slight differences in the position of the button g on different typewriters.

In order to brace the upper partof the frame 1, Fig. 7, I providea brace 45, Fig. 1, extending between a portion of the frame of the machine and the extension 5, and preferably secured, by or to the pin forming the stub shaft for pulley 20. rIhis bracemay be omitted if desired. In order to operate the machine in the customarymanner the connection 26 may be removed from pin `27 and hooked over a hook A47 on the left hand end of the machine, shown in Fig. 1, whereupon the carriage-return mechanism is rendered inoperative, and the typewriter may be operated in the customary manner.

exerting sufficient pressure on the of the rack, and to return the carriage it is Y only necessary to move the lever downward.

The carriage may be shifted by means of the lever 15 from an intermediate position to either the right or left. WVheii said lever is depressed, the cord 22 is t'ensioned, drawing the end 3()a of lever 30 to the right, `thus causing the nose 36 of lever 35 to so move the button gthat the escapement mechanism is rendered inoperative the same as when the button is pressed by a finger of the operator. The force of the spring, that operates to move the carriage to the left during the writing, now exerts a pull on the cord 22 tending to raise the lever 15. As long as the latter is held by the operator against the actior of the spring, the escapement mechanism is inoperative and the carriage may be moved to the left by the force of said raise, or

spring, by allowing the lever 15 to right by the carrlage may be moved to the overcome the force of the spring. When the carriage is being moved to the left, as above described, suflicient pressure must be constantlyvI exerted on the lever to prevent the cord 22 from becoming slack, otherwise the.

escapement will operatel to stop said movement. The carriage may-be stopped during its movement in either direction at any desired point by suddenly releasing the lever 15. When. the latter is released, thecord 22 lever tov becomes slack, the pressure `of nose 36 on button g ceases, ,and allows the escapement mechanism to`operate instantaneously, the

same as when the button is released by the finger of the operator 'when,the attachment is not employed. The carriage may be stepped forward by operating the lever 15 in the same manner as the space bar of the typewriter is operated. Should the carriage be mpved 'by hand in the usual manner, `insteadof by lever 15, spring 16, whose hooked end 19 (Fig. 2) engages over one of the forks of lever 14, will have sulicient pressure onthis lever to cause it to move down and take up the slack on cord 22 during this manual movement. yIf it is desired to move the carriage in one direction only, z'. e., to the right, and not permit its movement in thev reverse direction, lever 35 is shifted to the position shown in dotted lines Fig. 4.

It is of course obviousthat my planetary mechanism can be usedl not only'ffor shifting ias the carriage of typewriters, but may be used for shifting any movable carriage.

Claims:

l. In a typewriting machine, an escapenient actuating member movable with the carriage, a flexible member connected with the actuating member, and means connected to the flexible member adapted to slacken and tension the latter to throw the actuating member into and out of operation respectively.

2. -In a typewriting machine, an escapement actuating member movable with the carriage, a flexible member connected with the actuating member, and a pivoted lever connected to the iiexible member adapted to slacken and tension the latter to throw the actuating member into and out of operation, respectively.

3. In a typewriting machine, the combination with an escapement disengaging device,

of an actuating member for the latter, a

flexible member connected with the actuating member, and a pivoted lever connected to the iiexible member adapted to tens-.ion the iiexible member to actuate the disengaging device and to slacken said iiexible member to release said device.

..In a vcarriage return mechanism for typewriting machines, the 'combination' of means for engaging the carriage iframe and escapement disengaging device of the typewriter, a rack, a pinion engaging said rack, a pulley connected. to said pinion and a flexible connection connected at one'end to said pulley and at the other end, to said means, and means to cause the ypinion to traverse the rack.

5. In a carriage return mechanism for typewriting machines, the combination with means for causing the disengagement of 'the typewriter escapement, of a stationary arcu-A ate rack, a lever pivoted atthe center of the rack, a pinion mounted on said lever lor engagement with said rack, a cord pulley on said pinion, and a flexible connecting membeiconnected at one end to said pulley and at'the other end to said means.

G. In a carriage return mechanism for typewriting machines, a pivoted lever mounted on the typewriter carriage, and means on said lever arranged to actu-ate the escapement disengaging mechanism, said lever pivoted `to permit said means to move toward and from said mechanism and said means mounted on said lever to permit adjustment of said means into operative and inoperative positions.

7. In a carriage return mechanism for typewriting machines, an arml for attachment to the typewriter carriage, a -lever pivoted on said arm, a sleeve on the end of said lever having a notch therein, a sleeve loose within said cylinder, a pin projecting from said sleeve, a screw in said sleeve and adapted to project therefrom, a spring to elevate said screw and sleeve when said pin is moved opposite said notch, and means on said lever for connection of an actuating cord.

8. In a carriage return mechanism for typewriting machines, a frame plate, an arcuate rack mounted thereon, a lever pivoted at the center of said rack, a pinion carried by said lever and meshing with said rack, a cord pulley on said pinion, a pivoted lever on the typewriting machine carriage', means on said lever movable into .anvopei'ative and an inoperative position, for engaging the rack and escapement vdisengaging mechanism, and a cord extending along the typewriter carriage connected at one end to said cord pulley and at the other end detachably connected to said pivoted lever.

9. In a carriage return mechanism fortypewriting machines, the combination with means for causing the disengagement of the typewriter escapement, of a stationary arcuate rack, a lever pivoted at the center of the rack, a pinion mounted`on said lever for engagement with said rack, a cord pulley on said pinion, a flexible connecting member connected at one end to said pulley and at the other end to said means, and a spring acting onsaid lever to take up the slack in said cord when the carriage is manually returned. f

In testimony that I claim the foregoing as my invention, I have signed my name in 'presence of two subscribing Witnesses.

EDUARDO CASTAEDA.

Witnesses:

J osE BELDEN, HENRY ORTH, Jr.

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