US1454040A - Typewriting machine - Google Patents

Description

May 8, 1923.

C. B. GORELL TYPEWRITING MACHINE Filed March 25, 1918 Patented May 8, 1923.

UNITED STATES PATENT OFFICE.-

CLIFTON B. GORELL, OF NEW YORK, N. .tlrfiSIGNUftt 'IlO 'UI- DER'W'OOD COMPUTING MACHINE COMPANY, 035 ItillllW' 'lilUlitItll, .lll'. 511, it. COHPOYFWKTION 013 NEW YORK.

Application filed Itttarch 25, 1918. Serial No. $324,428.

To all whom 2'13 may concern Be it known that L Cnrrron l5. Connrat a citizen of the United Eltat s, residing in New York city, in. the county cit New lilorlr and State or New York, have invented certain new and useful Improvements in Typewriting Machines, oi which the following is a specification.

My invention relates to typewriting niachines, and more especially to margin-stops which limit the travel ot the typewriter carriage.

The invention is herein disclosed as applied to the right-hand inargiirstop of an Underwood addendagraph or master wheel typewriting and adding; niacl'iinei This is the margilrstop which limits the travel of.

the carriage as the carriage is returned to the right, for the purpose of beginning a new line.

The margin-stops for a typewriting machine must withstand severe blows, such as may be given when the typewriter carriage is arrested unexpectedly and at the same time the margin-stops must be settable in. as convenient a manner as possible, so that the attention of the typist will be diverted to the smallest possible amount in setting; such sto In other words, the hunger movements in setting; such stops must be natural or else easily learned, and of such a nature that, whenlearned, they are easily carried out. With these and other olojccts in View, the margilrstop' herein disclosed. is provided with a single handle, which serves both tor shitting it and tor releasing it, and said handle stands in the neighbou hood of the usual Underwood typewriter carriage scale-plate, with the result that, when the typists hand is adjusting; the stop at a given letter-space on said scale. the hand, and especially the fingers whicl'i. Were adjusting the stop will he in full view of the eye which is looking at the pointer on the scale-plate.

The margin-stop of the present" invention is especially adapted to he used in l'tlih chines ot the type of the Underwood addendapgraph reterredto above, in which there is a track fined in :i'tront of and some-- what above the usual typewriter scale-plate, alone; which track the plate slides which car ice the totalizer. The present inargia stop ennhlee the typis: to readily grant) and.

adjust the margin-stop while loolrinp; over the track at the scale-plate.

Uther tortures and advantages will hereinafter appear.

ln the accompanying drziwings,

lligure 1 is a plan view partly broken away, of part of an Underwood typewriting inachine showing my invention as applied thereto.

Figure 2 is a section through the marginstop viewed from above.

Figure 3 is an end view of the parts seen in Figure 1.

.lligure l is a fragmentary perspective of rnany of the parts seen in Figure l, viewed from almost behind the machine.

The usual Underwood. addendagraph typewriting machine carriage is provided with a pointer 10, which overlies the scale-plate 1.1 on the frame or the typewriter, said scale plate being graduated at lettenspace intervals, to correspond to the letter-feeding" movements of the carriage. lVhenit is desired to return the typewriter carriage to the right, to begin a new line, the typist seizes the usual line-space handle (not shown) and swin it to the right, thereby carrying along the carriage to the right until a lug" l2 on the carriage strikes a lug, 13 on the righthaud margin-stop 14: which arrests the carriagre. The inarninstop in the usual Underwood typewritin in achine and add endagraph is carried on a slide'bar 1,5 and a rack-bar 16., both concealed beneath the usual front bar 17 on the typewriter frame, on which latter bar the scale-plate l, 1. is mounted. In front ct and slightly above the scale-plirte 11 is a transverse bar or plate 18 of the addenda aph comprising tracks 1.9, on which the totalizer carrying-plate 20 is adapted to travel. The plate 18 is supported on hracle ets 21 at the ends of the typewriter, thus leaving" the front of? the machine open helow the plate 18. In order to cause the totalizen mounting plate 20 to travel with the typewriter carriage it is connected thereto by arms springing): from the posts 23 at each end of the typewriter carriage, and extend ing; toru irdly therefrom tothe top of f the plate 20 thus clearing' the scale-plate 11. and other mechanism. The margin-stop l l co1nprises a body 2 L encircling; the her 15 and an sion thereo'li partly encircling a can lie lee. th at t... :racltlnn Tttl.

Pivoted on the body 24 011 a vertical pin 26, is a rearwardly-extending toothed member 27, Comprising teeth 28 adapted to engage with the teeth 29 on the rack-bar 16, and thereby hold the margin-stop-bar in posit-ion. Both sets of these teeth are usually provided with one slanting and one nearly vertical face, so that the vertical face will receive the impact of arresting the carriage.

Since the rack-bar 16 is usually positioned above, as well as to the rear of the bar 15, the toothed member 27 of the stop is provided with a horizontal portion 30, carrying the teeth which engage the rack-bar, and a lower portion 31, offset both vertically and horizontally, by which it is pivoted to the stop body.

In order to enable the toothed member 27 to be swung into and out of engagement with the rack bar, the stop is provided with a looped handle 32, forming an extension of a sleeve 33, said sleeve being rotatable on the barrel-like extension 34 of the body of the stop which embraces the round bar 15. To cause the handle 32 to swing the toothed member 27 the sleeve 33 is provided with a boss 35 comprising a double cam 36 adapted to engage-a pin 37 on the toothed member 27, and positively shift said toothed member 27 away from the rack-bar 16 against the tension of the spring 36", which acts on the toothed member adjacent its pin 26. In effecting this motion, the handle 32, which normally stands projecting upwardly, adjacent to the scale-plate, and a few letterspaces to one side of the letter-space at which the pointer of the typewriter carriage will stand when the carriage is arrested, is pressed rearwardly. The typist may then slide the stop until it is at the desired position, as shown by its pointer 10 which overlies the scale-plate 11, and is in the form of a thin plate fast to and projecting from the body of the stop. When the handle 32 is released, it and the toothed member are returned by the spring 36*. The sleeve 33,

of which the handle forms a part, is limited in its rotation by a pin 39 which projects from the sleeve within a slot 40 cut in the barrel 34 on which the sleeve is journaled.

The lug 12 on the carriage, by which the carr age is arrested, may be of thevusual Underwood typewriting machine form, in which it is the turned-over end of a lever 41 pivoted upon the carriage between its ends and provided with a finger-piece 42 by which one end may be depressed, so that the lug on the opposite end will be lifted clear 1 of the lug 13 on the stop. In order to permit the carriage to pass the stop in letter-feeding d1rection, the leading edge of each lug is beveled to form a cam, which is adapted to strike a corresponding bevel on the marginstop-lug, so that the lever will be cammed upwardly against the tension of a spring (not shown), which normally holds it in its effective position.

The structure described above, permits the handle 32, curving up and over the scaleplate 11, to be easily accessible over the top of the plate 18, and to control the stop, of which the effective portion is behind and below the front bar 17. The lug 13 is firml held since the lug 13 is close to the rackar 16, and the length of the extension 25 along the. rack-bar holds the extension stead Variations may be resorted to within the scope of the invention and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. In a typewriting machine, the combination with a traveling carriage, of a stop comprising a body, a rack bar, an arm swingable on said body into and out of engagement with said rack bar, a handle rotatable on said body transversely to said rack bar, and means including a double-action cam member fast to said handle to swing said arm into and out of engagement with said rack bar.

2. In a typewriting machine, the combination with a traveling carriage, of a stop comprising a body, stop-supporting means. comprising a rack bar and a rod on which said body slides, an arm pivoted on said. body adapted to be swung into and out of engagement with said rack bar, a handle mounted on said body and rotatable around said rod, and means, including a double cam fast to said handle, to positively swing said arm into and out of engagement with said rack bar.

3. In a typewriting machine, the combination with a traveling carriage, of a stop for said carriage comprising a body. a stop-supporting means including a rack bar, an arm pivoted on said body adapted to engage said rack bar to hold the stop, a scale-plate along which said bod. is slidable, a handle rotatable on said b0 y near said scale-plate and transversely of said rack bar, and a cam member operated by said handle to swing said arm into and out of engagement with said rack bar.

4. In a typewriting machine, for the pun pose specified, the combination with a traveling carriage, of a stop for said carriage. a scale-carrying bar as set forth, supporting means for said stop, including a rack-bar beneath said scale-bar, said stop being slidablc along said rack-bar, a handle for said stop projecting upwardly as set forth, a toothed member pivoted on said stop to swing to and from said rack-bar, in a plane in which lies the axis of said rack-bar, a pin on said memher, and a cam-member secured to said handle effective on said pin to swin said toothed member into and out of effectlve position.

5 In a typewriting machine, for the purpose specified, the combination with a traveling carriage, of a stop for said carriage, a scale-carrying bar, a rack-bar beneath said scale earrying bar, a rod, an extension oi? said stop embracing said rod, so t l it the stop is siidable along the rod and racl a handle jonrnaled to rotate around s; and connected with said stop to more therewith along said rack-bar and rod, said handle projecting upwardly as set iioi'th, a toothed member pivoted on said stop to swing to and from said rack-bar, in a plane in which lies the axis of said rack-bar, a pin on said member, and a camanember fiz zedl v ooimeoted to said handle effective on said pin to swingsaid toothed member into and out of effective position.

6. In a typewritinp; machine, the combination with a traveling carriage, of a stop comprising a body, StOP-SUpPOItlHg means, including a rack bar and a rod on which said body slides, an arm pivoted on said. body to be swung, in a plane in which lies the axis of said raoiebar, into and out of engagement with said rack bar, a handle mounted on said body and rotatable around said rod, means, including a cam member fast to said handle, to swing said arm out of engagement with said rack bar, and a spring normally holding it in engagement with said rack bar.

7. In a typewriting' machine, the c-ombina tion with a traveling earriage, of a stop for said carriage, a scalemarrying bar, a rack bar beneath said scale bar, a stop slidable along said rack bar, a handle for said stop projecting; substantially above said scalecarrying bar, a toothed member swing'able on said stop to and from said. rack bar, a pin on said member, a cam member secured to said handle effective on said pin. to swing said toothed member into and out of effective position, a pin on said handle, and a slot in the body of the stop in which the pin works, adapted to limit the throw of the handle.

8. In a tmaewriting machine, the combination with a traveling carriage, of a stop for said carriage having a long body, a rack bar embraced by said body, a toothed member pivoted on said stop adapted to be swung into and out of engagement with said rack bar, a rod, a barrel forming part of said stop embracing said. rod to steady the stop, a sleeve on said barrel, a cam member fixed to said sleeve, a pin on said toothed. mom-- ber engaging said cam member, and a handle fast to said. sleeve tor swinging; the cam member to operate the pin.

CLIFTON! B. CORELL.

Witnesses Ami-Ion A. il'oi-mson', CATHERINE A. NnwnLL.

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