US942535A

US942535A - Type-writing machine.

Info

Publication number: US942535A
Application number: US40353107A
Authority: US
Inventors: Edwin E Barney
Original assignee: MONARCH TYPEWRITER CO
Current assignee: MONARCH TYPEWRITER CO
Priority date: 1907-11-23
Filing date: 1907-11-23
Publication date: 1909-12-07
Anticipated expiration: 1926-12-07

Description

E. E. BARNEY.

TYPE WRITING MACHINE.

APPLICATION FILED Nov; 22, 1907.

45 H 3 T 5/ M EDWIN E. EARNEY, OF SYRACUSE, NEW YORK, ASSIGNOB TO 'WRETER COMPANY, OF SYRACUSE, NEEV YORK, A GQEPOEATZGN OE TI- E DIIONARCH TYPE- NEVJ YORK.

TYPE-"WRITING IMACI-IINE.

Serial No. 403,531.

To all whom it may concern:

Be it known that I, EDWIN E. Banner, citizen of the United States, and resident of Syracuse, in the county of Onondaga and bltate of New York, have invented certain new and useful improvements in TypelVriting Machines, of which the following is a specification.

lily invention relates to typewriting ma chines and more particularly to means for releasing the feed rolls and for locking them in the released position, and the main object of the invention is to provide simple and efficient means for this purpose.

To the above and other ends which will hereinafter appear, my invention consists of the features of construction, arrangements of parts and combinations of devices to be hereinafter set forth and particularly pointed out in the appended claims.

in the accompanying drawings, wherein line reference characters indicate corresponding parts in the various views, Figure l is an enlarged end view of a carriage equipped with the devices of my invention. 9 is a fragmentary vertical sectional view taken transversely through the lefthand end plate of the carriage, the platen being omitted in this view. Fig. 8 is a view corresponding to Fig. 1 except that the parts are shown in their released positions.

I have shown my invention applied in the present instance to a Monarch machine tho h it should be understood that my invention is applicable to various other constructions or styles of typewriting machines.

In the drawings, 1 indicates the slide or supporting back bar of the carriage which provided with upper and lower grooved faces 2 for cooperation with anti-friction balls or rollers, and opposing top and bottom rails, not shown. End plates 3 project forwardly from the ends of the slide bar and are provided with hearin openings to receive a shaft r on which the platen 5 is mounted. Feed roll hangers 6 are pivoted at 7 in apertured lugs 8 which extend forwardly from the slide bar 1. Coiled springs 9 surround the pivots of the feed roll hangers and each spring bears at one end 10 against the bottom wall of the aperture in its associated lug 8 while the other end 11 of the spring bears against the hanger 6 to force the lower end thereof toward the platen. A feed roll shaft 12 is mounted in the hangers 6 and supports main feed rollers 13, which extend through openings in a paper apron let and bear against the platen at the side thereof where the iaper is introduced into the machine.

Each of the feed roll hangers 6 is provided with a lug 15 on the upper side thereof for cooperation with a projection 16 on a rock shaft 17 mounted in bearings in the end plates of the platen frame or carriage. The left-hand end of the rock shaft has secured to it an angular crank arm 18, one portion 19 of which is adapted to bear againsta stop pin 20 projectingfrom the left-hand end plate of the carria e to limit the movement of the crank arm and the parts attached thereto in their movement back to normal position. Hangers 21 are pivoted at 21 in the apertured lugs 8 below the feed roll hangers and each of the hangers ii is pressed toward the platen by a spring 22 which is coiled about the pivot of the hanger and bears atone end against the hanger and at its opposite end against the bottom wall of the aperture in the lug 8. The feed roll hangers 6 are extended below or beyond the feed rollers 1.3 and carry antifriction rollers 23 adapted to bear against the hangers 21 when the parts are moved to the positions shown in 3 and to move the hangers 21 away from toe platen. The hangers 21 support shaft 2%- for the forward set of feed rollers 25 and each hanger 2 carries a leaf spring 26 secured thereto by a screw 27. These springs bear upwardly against the paper apron l t (which is pivoted at its upper rear end on the feed roll release shaft 1'7), so as to effect a pressure of the paper apron against the platen when the parts are in their normal positions. lVhen, however, the main feed rollers are moved to the released position shown in Fig. 3 the hangers 21 will be depressed, thereby carrying the forward set of feed rollers away from the platen and allowing the paper apron to turn on its pivotal support and to move away from the platen.

The construction thus far described is similar to that employed in the Monarch machine and further detail description thereof is deemed unnecessary.

The crank arm 18 is pivoted at 28 to oneelement 29 of the toggle is in the nature of alever and is extended beyond the pivot 30 to provide a finger piece 33. This is preferably formed by turning the metal at-right angles to the plate of the body portion of the lever so as to thereby not only form a finger piece with a flat face presented to the operator, but also to provide a stop which, when the parts are in the positions shown in Fig. 3, is adapted to abut against the toggle link or element 31 and limit the movement of the toggle when operated to lock off the feed rollers.

In the normal positions of the parts the toggle elements are disposed as shown in Fig. 1. By moving the finger piece 33 forwardly, the toggle is moved to the dead center position shown in Fig. 3 and this movement is effective to turn the rock shaft 17, through the crank arm 18, thus forcing the feed roll hangers 6 downwardly to carry the main feed rollers out of cooperative relation with the platen. This same movement as hereinbefore explained, is effective to bring about a movement of the forward set of feed rollers and the paper apron away from the platen.

The parts when in the positions shown in Fig. 3 are locked in the released position by the dead centering of the toggle, the pressure of the

restoring springs

9 and 22 being exerted through the shaft 17 and toggle against the fixed pivot 32 in a line extending through the

pivots

28, 30 and 32. A slight rearward pressure exerted upon the finger piece 33 is effective however to break the toggle and to enable the parts to return to normal positions.

The toggle release and lock shown in the present arrangement is simple in construction, inexpensive to manufacture and is efiicient in use, the entire releasing and locking means consisting of but two parts.

Various changes may be made without departing from the spirit and scope of my invention. For example, other feed devices than rollers may be employed and only one roller or feed device may be used instead of two as shown.

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

1. In a typewriting machine, the combi nation of a platen, a feed roller cooperating therewith, and means for releasing said feed roller and for locking same in the released position, said means including feed roll hangers, a rock shaft operative on said hangers to throw the feed roller out of cooperative relation with the platen, a crank arm on said rock shaft, and a hand-com trolled toggle connected to said crank arm and operative on said rock shaft to actuate and lock it.

2. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft operative on the hangers to move said hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft, and a hand controlled toggle connected to said crank arm in order to rock the shaft and lock it, the disposition and relation of the parts being such that the feed rollers will be locked in the released position when the toggle is in the dead center position.

3. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with said hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft, a toggle connected to said crank arm, and a finger piece connected directly to one of the elements of said toggle to control the rock shaft through the toggle.

4. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed. rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with the hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft, and a hand-controlled toggle connected to said crank arm, the disposition and relation of the parts being such that the feed rollers will be locked in the released positions when the toggle is in the dead center position, and a finger piece connected to one of said toggle elements so as to actuate and lock the shaft by the toggle, said finger piece constituting a stop to limit the movement of the toggle elements in one direction when they are in the dead center position.

5. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with said hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft, a stop which cooperates with said crank arm to limit the movement of the crank arm and the parts connected therewith in one direction, a toggle connected to said crank arm, and a finger oiece connected to one element of said to gle to effect an actuation and a locking of the rock shaft through the toggle, said finge piece constituting a stop to limit the movement of the toggle in the opposite direction.

In a, tvpewriting machine, the combination a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with said hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft, a stop which cooperates with said crank arm to limit the movement ot the crank arm and the parts connected therewith in one direction, a toggle connected to said crank arm for controlling said rock shaft, the disposition and relation of the parts being such that the feed rollers will be locked in the released position when the toggle is in the dead center position, and a linger piece connected to one of said toggle elements, said linger piece constituting also a stop to limit the movement of the-toggle elements in one direction when thev are in the dead center position.

7. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with said hangers to throw the feed rollers out of cooperative relation with the platen, a crank arm on said rock shaft. and a lnu1d-con trolled toggle connected to said crank arm, one element of the toggle being a lever provided with a linger piece and connected at one end to said crank arm and connected in termediate its ends to the other element of the toggle.

S. In a typewriting machine, the combination of a platen, feed rollers cooperating therewith, and means for releasing said feed rollers and for locking them in the released position, said means including feed roll hangers, a rock shaft cooperative with said hangers to throw the feed rollers out of cooperative relation. with the platen, a crank arm on said rock shaft. and a hand-controlled toggle connected to said crank arm, the disposition and relation of the parts being such tl at the feed rollers will be locked in the released position when the toggle is in the dead center position, one element of said toggle being a lever provided with a finger piece and connected at one end to said crank arm and connected intermediate its ends to the other element of the toggle.

9. In a typewriting machine, the combination with the paper teed mechanism, of a releasing and locking mechanism. comprising a crank arm, a link, and a hand actuated lever pivotally connected at different points in its length to both the crank arm and the link.

10. In a t vpewriting machine, the combination with a platen; paper feed rollers; and means for moving the paper feed rollers to an inoperative position. and for locking them in such position, said means comprising a toggle link which turns on a fixed pivot at one end, a hand actuated toggle lever pivoted intermediate its ends to the opposite end of said toggle link, one end of the toggle lever having a. finger piec and feed roller moving means connected to the opposite end of said toggle lever.

1].. in a tvpewriting machine, the combination with a platen; paper feed rollers; and means for moving the paper feed rollers to an inoperative position and for locking them in such position, said means comprising a toggle link which turns on a liXed pivot at one end, a hand actuated toggle lever pivoted intermediate its ends to the opposite end of said toggle link, the toggle lever having a linger piece at one end thereof, a rock shaft, means controlled thereby for moving the feed rollers away from the platen, and a crank arm on said rock shaft, there being a pivotal connection between said crank arm and the other end of said toggle lever.

Signed at Syracuse, in the county of Onondaga and State of New York this 20th day of November A. D. 1907.

EDW'IN E. BA tXEY.

Witnesses Jonx H. Hanan,

lV. C. HAY.