US716720A

US716720A - Attachment for type-writing machines.

Info

Publication number: US716720A
Application number: US10181402A
Authority: US
Inventors: Charles R Kelly
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-04-07
Filing date: 1902-04-07
Publication date: 1902-12-23
Anticipated expiration: 1919-12-23

Description

No. 716,720. Patented Dec. 23, I902.

C. R KELLY.

ATTACHMENT FOR TYPE WRITING MACHINES.

(Application filed A pi', 7, 1902.)

(No Model.)

WITNESSES- j ZNVENTOR 3 Charles RJYeZL Nrrnn STATES,

FFICE.

PATENT ATTACHMENT FOR TYPE-=WRIT!NG MACHINES.

SPECIFIGATI ON forming part of Letters Patent No. 716,720, dated December 23, 1902. Applicationfiledrlpril 7, 1902. Serial No; 101,814. (No model.)

To all whom, it may concern;

Be it known that I, CHARLES R. KELLY,

of Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in .Attachments for Type-WritingMachines; and Therefected simply by depressing a treadle or other:

suitable connection operative by the foot or leg of the operator, the object being to enable the operator to use his hands exclusively for writing, and thus save the time ordinarily required for turning the platen and returning the carriage to the right at the end of each line by the usual hand-lever on the machine.

The present invention is particularly ap plicable to shiftingplaten machines, such as the Remington type-writer; and an additional object of the invention is to prevent the pull of the platen-turning devices shifting the platen laterally, without, however, interfering with the carriage movements if the platen should have been shifted laterally and so held by the shift-key when desired to write with capitals or numerals only.

The foregoing objects are attained by'the presentinvention, which consists in the novel combinations and constructions of parts of the devices shown in the accompanying drawings and hereinafter described and claimed, and, referring to the claims for a summary of the invention, Iwill proceed to describe it in detail as applied to a Remingtontype-writing machine.

Figure l is a top plan View of part of a Remington type-writing machine with-my improved platen-turning and carriage-returning devices connected therewith, said devices being shown in inactive position in full lines and in position assumed when actuated in dotted lines. Fig. 2 is a detail view of the main lever and connections. Fig. 3 isa detail'view of the bell-crank lever and connections. Fig. 4 is a detail sectional View of the treadle. Fig. 5 is a rear view of the part shown in Fig, 2. Fig. 6 is a detail.

In said drawings, A designates part of a Remington typewriting machine, having a movable carriage B, on which is mounted a laterally movable or shifting platen C, all constructed as in the well-known No. 6 Remington type-writer, andneed not be further particularly described nor shown in detail in the drawings. The invention, however, is not restricted to use with the Remington typewriter, which is used for convenience of explanation, and when understood it will be readily perceived that the invention is adaptable to other styles oftype-writing machines and can be readily applied thereto by expert mechanics.

On the right-hand end of the rear bar Z) of the carriage B is detachably secured a clip D, Fig. 3, having a pair of depending flanges (1 cl, adapted to embrace the bar b, one of said flanges being lipped at cl to catch under the bar, and the other having a screw 62 tapped through it to engage under the bar and retain the clip thereon. From this clip rises a short standard D, on which is pivoted a bell-crank lever E, the short arm of which is connected by a cord e (or other suitable connection) to the upper arm of the platenturning lever C, which is pivoted on the front of the carriage and provided with a pawl c, engaging a ratchet C on the platen C in the usual manner, so that when the upper end of lever O is moved inward the platen is turned. The front end of cord e may be attached to lever O in any suitable way. As shown, the screw 0', which connects the pawl c to lever C, is provided with an elongated grooved head 0 to which the cord is attached. I do not, however, restrict myself to this particular screw attachment.

The longer arm of lever E extends rearwardly and is connected by a link E to one .end of an oscillating lever E, which is pivoted on a short standard g, rising from a plate or bracket Gr, which is also detachably secured to the rear bar of the carriage, about centrally thereof, said bracket having depending flanges G to embrace the bar and the rearmost flange being provided with a retaining screw or screws G as shown. The bracket projects rearwardly beyond the bar, and on this extended portion the lever F is pivoted.

A spring H is arranged to normally rock lever F, so that its inner end moves toward lever E when released, a stop g on bracket G .properly limiting this movement of lever F,

however. The bracket G extends rearwardly beyond standard g and is provided with a vertical lug G on which is pivoted a vertically-oscillating latch-lever I, the front end of which extends to and lies above the rod C of the platen-cradle and permits the platen to be shifted laterally to use capitals or other type, as usual; but if the front end of latch drops behind the rod 0 this lateral shift of platen will be prevented. The rear end of latch I is provided with a beveled lug 1,- adapted to be engaged by the rear end of lever F in the normal position of the latter and forced down, thus raising the front end of latch I and holding it normally over and above the rear rod 0 of the cradle in which the platen O is hung on the carriage; but when lever F is moved by a pull on its rear end to the position indicated in dotted lines, Fig. 1, latch I is released and front end will drop down behind rod C and thus prevent the pull on cord 6 shifting the platen laterally on the carriage. If the platenhad been previously shifted, however, so that rod C is under the forward end of latch I, no harm results, as the latch rests on the rod. A light spring f is attached to the inner end of lever F and is adapted to depress the front end of latch I when lever F is properly oscillated. To the rear end of lever F is connected a cord f, which passes over a pulley 7', mounted in a bracket J, detachably secured to the frame of the type-writer, as shown, and thence to a suitable manipulating device. I preferably employ a treadle device to actuate the cord, as shown in Fig. 4. This comprises a large and a small pulley K 70, fixed together and both journaled on a pin L attached to a standard L, rising from a base L, a treadle M being fulcrumed on the base, and one end of the treadle is connected by a cord m to the small pulley 75, while the cordf is attached to the large pulley K. Upon depressing the treadle so as to rotate pulley 7c the cord f will be wrapped upon pulley K, and the pull on the cord will first oscillate lever F to the position shown in dotted lines, Fig. 1, and then pull the lever and carriage to the right-hand position. This movement of lever F actuates lever E and causes it, through cord 6, to actuate lever C and turn the platen before the carriage moves to the right, and latch I being released before the platen is turned will drop behind rod 0 and prevent the pull on lever C shifting the platen laterally on the carriage.

A spring K is arranged to return the pulleys K to normal position. This spring is placed on pin L and may be partly concealed in a recess in the pulley K, one end of spring being fast to the pulley, the other part to the standard. When treadle is released, the cord f is immediately relaxed, and spring H returns lever F to position shown in full lines, Fig. 1, thereby raising lever I and shifting lever E to relax cord 6 and permit the pawl c to move back to position preparatory to again turning the platen.

These attachments permit the machine to be used for one, two, or three space lines, this being regulated by the ordinary space-gage on the machine controlling the extent of movement of the hand-lever O, and the attachments in no way interfere with the operation of the platen or carriage by hand, as at present, and do not require any special construction or alteration of machine.

From the foregoing description and the drawings the operation of the device will be sufficiently understood, and the adaptability of the invention to other makes of type-writing machines will be apparent to those skilled in the art, and the following claims define the nature and scope of the invention for which protection is asked.

I claim 1. In combination with the shifting platen and carriage of a type-writing machine, an oscillating lever pivoted to the carriage, a pull connected to the lever, and a latch pivoted beside said lever and adapted to prevent the platen being shifted laterally when the lever is actuated, substantially as described.

2. In combination with the carriage, platen and platen-turning devices of a type-writing machine, a lever pivoted on the carriage, a connection between said lever and the platenturning devices; an oscillating lever pivoted on the carriage, aconnection between the said levers, and a pull-cord connected to the oscillating lever, substantially as described.

3. In combination with the platen and carriage and platen-turningdevices of a typewriting machine, a bell-crank lever pivoted on the carriage adjacent to the platen-turning devices, a permanent flexible connection between one arm of said lever and the platenturning devices, a treadle-manipulated device, and pull connections between said device and the other arm of the lever, whereby upon depression of the treadle the lever is oscillated and turns the platen and then the carriage is returned to right-hand position, substantially as described.

4. In combination with the shifting platen and carriage of a type-writing machine, an oscillating lever pivoted to the carriage, connections between one end of said lever and the platen-turning devices, and a pull connected to the other end of said lever, a latch pivoted beside said lever and adapted to be released thereby and prevent the platen being shifted laterally when the lever is actuated, substantially as described.

5. In combination with the carriage,platen and platen-turning devices of a type-writing machine, a bell-crank lever pivoted on the carriage, a connection between one arm of said lever and the platen-turning devices; an oscillating lever also pivoted on the carriage, a link connection between the said levers, a treadle, and a pull-cord connecting the outer arm of the oscillating lever and treadle, substantially as described.

6. The combination with the carriage, the laterally-movable platen thereon, and platent-urning devices of a type-Writing machine, of an oscillating lever pivoted on the carriage, connections between said lever and the platen-turning devices, a pull connected to the said lever, a latch pivoted beside the lever adapted when released by the lever to prevent the lateral shifting of the platen during the turning thereof, substantially as described.

7. The combination with the carriage, the shifting platen, and platen-rotating devices of a type-writing machine; of a bell-crank lever pivoted on the carriage, a cord connecting said bell-crank with the platen-turning devices, an oscillating lever pivoted on the carriage, a link connecting the inner end of said oscillating lever, the bell-crank lever, a latch pivoted beside the oscillating lever, adapted to prevent lateral shifting of the platen when released, said latch being normally upheld by the oscillating lever, and a pull-cord attached to the outer end of said oscillating lever, and devices for actuating said cord, all substantially as described.

8. The combination with the carriage, the laterally-movable platen thereon, and the platen-turning devices of a type-Writing machine of an oscillating lever pivoted on the carriage, connections between the inner end of said lever, and the platen-turning devices, a pull-cord connected to the other end of said lever, a latch pivoted beside the lever and normally upheld thereby, but adapted when released by the lever to prevent the lateral shifting of the platen during the turning from the standard, a large and a small pulley journaled on the pin and connected together, a spring on the pin connected to the pulley and frame, a treadle fulcrumed on the base, and the cord connecting the treadle with the small pulley, the pull-cord being connected to the large pulley, substantially as'described.

10. The combination with the carriage, the shifting platen, and platen-rotating and carriage-returning devices of a type-writing machine, of a bell-crank lever pivoted on the carriage, a cord connecting said bell-crank with the platen-turning devices, an oscillating lever pivoted on the carriage, a link connecting the inner end of said oscillating lever With the bell-crank lever, a latch pivoted beside the oscillating lever, adapted to prevent lateral shifting of the platen when released by the oscillating lever, said latch having a beveled lug on its outer end adapted to be engaged and' depressed by the oscillating lever so as to normally uphold the latch, a spring on said oscillating lever for depressing the latch, a pull-cord for actuating said oscillating lever, and a spring for returning the oscillating lever to normal position, all substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in the presence of two Witnesses.

CHARLES R. KELLY.

In presence of Tnos. W. WHITE, OWEN MoCANN.