US969206A - Type-writer attachment. - Google Patents

Description

I. -C. SHOBERT. TYPE WRITER ATTACHMENT.

A APPLICATION FILED HAR. 20, 1909. .Y

969,206. Patented Sept. 6, 1910.

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F. C. SHOBERT. TYPE WRITER ATTACHMENT. APPLICATION PILPD MAR. 20, 1009.

Patented sept. 6,1910.

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WITNESSES:

FREDERIC C. SHOBERT, OF PITTSBURG, PENNSYLVANIA.

' TYPE-WRITER ATTACHMENT.

, Specification of Letters Patent.

Patented Sept. 6, 1910.

Application led March 20, 1909. Serial No. 484,678.

complish the rotation of the platen and the .movement of the carriage forward a distance greater than a few spaces, and backward, one or both hands of the' operator must be raised a considerable distance from the keys,

V and in some cases Atoward the back of the machine. These movements ,cause interruptions in writing and material delay.

i It is the object of the invention described herein to provide for the 4operation of the levers or parts which control the rotation,

l of the platen and the movement of the carrage without moving the hands from the keys farther than is required in the operation of the keys.

The invention is hereinafter more fully described ,and claimed.

In the accompanying drawings forming a part' of this speciication, Figure 1 is a front elevation of a form of -machine hav-v ing releasing the carriage on opposite sides of.

the levers for shifting the platen and the machine, and showing my improvement applied thereto; Fig. 2 is end view and Fig. 8 a top plan view of the same; and Fig. 4 is a perspective view illustrating the application 'of myimprovement to machines having the levers for shifting the platen andreleasing the carriage on the same side lof the machine.

In the practice of my invention, a lshifting rod 1 is mounted ina tubular guide 2 provided with supporting lugs 3 detachably secured to a suitable portion of the machine,

preferably to the front bar 4 of the frame, where it will be closely adjacent to the spacing key 5. The rod is providedwith a lug or thumb piece 6 against which the thumb or finger 'of theoperator will bear to shift the rod 1 longitudinally, said lug having a portion projecting through a longitudinal slot in the tubular guide as shown in Figs. 2 and 3. A second rod 7 is 'movably supported in substantial parallelism with the first rod by a guide sleeve 8 carried by a bracket 9 detachably secured to the frame shown of the carriage. The rods are connected together at one end by a cross brace 10 in order that the rod 7 may move with the rod 1. At its free end the rod 7 has a head 11 pivotally connected to it, and providedwith means whereby it maybe detachably secured to the line-spacing lever 12 whereby the platen V18 is rotated. In the construction the head is provided with a notch for the reception of the rounded portion of the lever, which is held in position in the notch by a block 14. By reason of the connection of the rod 7 with the lever 12, the Jframe, consisting of the rods or arms 1 and 7 and cross-brace 10, will move back and. forth with the carriage, the rod or arin 1 sliding in the tubular guide 2. When the carriage is stationary, pressure on the lug 6 will shift the frame and with it the lever and thereby turn the platen. In order to release the carriage a slide 15, provided with an operating thumb piece, is movably mounted on the cross-brace 10, and is rovided with an arm 16 adapted to movably engage means for operating the release lever 17 of the carriage. l ln the construction shown such means consists of' compound levers 18 and 19 mounted on the supporting arm 9 which is attached tothe carriage as stated. The

free end of the lever '18 is provided with an i eye for the receptionof the reduced end of the arm 16 such reduced portion being of such length as to remain in engagement with the lever 18 when the frame is shifted to turn the platen. The free end of the lever 19 will bear on and shift the'release lever 17 of the machine, when the slide 15 is moved down.

It will be observed that the lug or thumb piece 6 will move with the carriage but will always be in. a position to be operated without raising the hand. A small side movement of the hand will bring it into position to operate the slide 15.

It will be readily understood by `those skilled in the art that my improvement can be readily applied with slight modifications in, structure and arrangement to other styles of machines having their platen rotating and carriage release.A levers diierently arranged. As for example in Fig. 4 is shown a form of machine having said levers on the same side or end. The line spacing lever 12a extends upwardly and the rod or arm 7 of the frame engages said lever, in this case bears against it, as the lever has to`\be turned inwardly to rotate the platen. The rod or arm 7a is guided in its movements by aA bracket 9a detachably secured to the carl riage and provided at its outer end with a hole for the rod 7a. In order to trip-the lever or latch .17a controlling the carriage, a lever 18a is pivoted on the bracket 9a in such manner that oneend of the lever will bear on the latch 17a while the opposite end of the lever is connected by a link 2O to the arm"16 of the slide 15. While it is believed that the spring employed for returning the levers l2 and l2a vto lnormal position will be suiciently strong to shift the frame also, a spring 2l may be employed for that purpose, said sprin being placed around the rod `or arm 7 an between the brace l0 and the bracket 9. y

In the types of machines having the` platen or spacing shifting lever at the right hand end of the carriage this lever Ais used `for shifting the carriage back or to the lright, and in forms in which pressure is applied to thelever in the .same direction to' shift both the carriage and the platen as in the construction shown in Figs; l,- 2 and .3, the spring employed for returning the leverjand the pawls o erated thereby to normal 'position7 is ma e sufficiently stronger than the spring employed for shifting the carriage to lenable the latter to be shifted 'back Without any rotation of the platen. This portion of the carriage shifting-and lever shifting springs permits the operator v3,5

byone Amovement to shift the carriage to the right and turn the platen the desired distance for beginning a new line, but involves the raising of the hand to effect these f down to engage the lu l and movements.' In using my attachment which hasthe'rod or arm 7 connected to the lever 12,- the operator merely moves the thumb or thumb-piece 6,

pulls the frame o the attachment to the right, shiftin Athe carriage and platen.

Frequently it is esirable to shift the carriage Without rotating 'the platen, and hence suitable means are employed,vas the spring y 21,-to insure-the movement of the carriage i prior to any movement of the arm or rod 7 to rotatethe'platen. i I, claim herein as' my invention;

1. Thev combination of a typewriting ma chine with means arranged infront of the chine with a frame movably supported by the frame of the machine in front of the bank of keys, and provided with an arm adapted to engage the line spacing lever and a slide mounted on the movable frame and adapted to engage the carriage release lever.

-4. An attachment for typewriting machines having in combination a guide adapted tov be detachably secured to the frame of the machine and a two armed framehaving one arm movably carried by the guide and the other arm adapted to engage the line spacing lever. 1

5. An attachment for typewriting machines having in combination a guid adaptedto be detachably secured to the frame of the machine, a two' armed framehaving one arm supported by said guide and the other arm connected to the carriage of the machine and adapted to engage the line spacing lever, and a slide movably mounted on the frame and adapted to shift the carriage latch or lever. 1 y

6. An 'attachment for typewriting machines having in combination a guide adapted to be detachably secured to the frame of the machine and a two armed frame having one arm movably mounted in the guide, the other arm adapted to engage the line spacing lever and having a yielding bean, ing on the carriage. l y

7. The combination with a typewriting machine of means mounted on the frame adjacentto the bank of keys for releasing the carriage, and means connected to the carlriage-releasing means and to the line-spacing lever for operating the latter.

In testimony whereof, I have hereunto set

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