US432981A

US432981A - Type writing machine

Info

Publication number: US432981A
Authority: US
Publication date: 1890-07-29
Anticipated expiration: 1907-07-29

Description

(N0 Model.) 4 Sheets-Sheet 1.

I M. 001m.

TYPE WRITING MACHINE.

N0. Patented July 29, 1890.

(No Model.) 4 Sheets-Sheet 2. M. GOHN. TYPE WRITING MACHINE.

Patented July 29,1890.

awu ewiw (No Model.)

4 Sheets-Sheet 3, M. OOHN.

TYPE WRITING MACHINE.

Patented July 29, 1890.

4 Sheets-Sheet 4.

(No Model.)

M. (JOHN.

TYPE WRITING MACHINE.

Patented July 29, 1890.

UNlTED STATES PATENT OFFICE.

MAX COIIN, OF MILlVAUKl-IE, \VISCONSIN, ASSIGNOR OF ONE lI'IIRD TO CHARLES COI-IN, OF SAME PLACE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent NO. 432,981, dated July 29, 1890.

Application filed July 26, 1888. Serial No. 281,090- (No model.)

To all whom it may concern:

Be it known that 1, MAX (JOHN, of Mil- Waukee, in the county of Milwaukee and State of Visconsin, have invented certain new and useful Improvements in Typewriting Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to type-writers, and will be fully described hereinafter.

In the drawings, Figure l is a vertical section of my device on line 1 1, Fig. Fig. 2 1s an elevation of the right-hand end. Fig. 3

is a section online 3 3. Fig. i. Fig. i is a section on line 4- 4, Fig. 3. Fig. 5 is a plan view of the type-wheel and its supporting-frame. Fig. 6 is an elevation. Fig. 7 is an elevation of the carriage-driving mechanism. Fig. 8 is a section on line 8 8, Fig. 7. Figs. 9 and 11 are details, and Fig. 10 is a partial end view.

A is the base of my type-writer, which may set upon a table or any other suitable support. From the ends of this base project two arms A, and the upper ends of these arms form bearings for a shaft a, which shaft forms one side of the type -wheel frame 1). The shaft Z) of the type-wheel G has one of its bearings in the shaft a and the other in the front side a of the type-wheel frame. The shaft 1) carries a spiral spring I), which is attached to it at one end and to the front side piece a, and the other end of shaft 71 carries a sheave c, which is connected by a cord (Z with one end of an angle-lever D, that is pivoted to the center of the chord l) of a segment D that is supported by the type-wheel frame at one corner, and may form part of said type-wheel frame. The front ,end D of angle-lever D carries a pointer c and a pin 6', which latter engages indentations e in the segment D and the segment D has engraved or otherwise marked upon it the letters and characters usually found upon the key-boards of type-writers, arranged in convenient relationship to each other. The shaft to earries a retracting-spring I, which engages one of the posts A at one end and serves to lift the front end of the carrier-frame B after it has been depressed by pressure on the handle of lever D just as the spring Z) serves to wind the shaft 1) in one direction after it has been drawn by the action of cord d against the tension of the springin another direction.

f are the inking-rollers of the typewheel. An arm G depends from the front side of the type-wheel frame, and has a flange G, which has a slot that is just large enough to freely admit an anvil G to the letter immediately over it on the type-wheel, and this anvil should be covered with chamois skin or some soft material which will serve to cushion the type.

II is the paper-carriage, which has two rollers Ii 11?, the journals of which have their bearings in the end pieces of the carriage, and the carriage is supported on rails 71 which receive sheaves 71 that are pivoted on the carriage. The rear side piece 1 of the carriage has cog-teeth 1" on its lower side. The short shaft j, that has its bearings in astandardj and in the rear supporting-rail of the carriage, carries a cog-wheel K, that engages with the cog-teeth on the rail 1'. This shaft also carries a ratchet-wheel L, by which it is operated. Swung to the hub of the ratchetwheel L are the arms m of a lever L, and to this leveris pivoted a spring-actuated pawl M. The outer end of lever L is connected by a pin N and slot N with a lever O, which is pivoted on a stud 0, near the right end of the rear rail 7L, and connected by an upright link 1) to the right side of the type-wheel frame, so that when the type-wheel frame is depressed by an operator manipulating the handle of lever D the arm of lever L will be lifted to cause the pawl M to jig the ratchetwheel L one tooth. A stop-pawl Q is pivoted to the rail 71011 the opposite side of the ratchet-wheel to the pawl M, and normally serves to stop the ratchet and prevent a return movement of it; but when the carriage is to be retracted to begin a new line a lever P, which is pivoted to the left end of the supporting-rail 7L, may be brought into play. This lever has a pin 1) on its inner end, which engages the under side of pawl Q, and pawl Q has a finger q, that projects into a loop 011 the upper side of pawl M, and therefore when the left end of the lever P is depressed the pin 1) will lift pawl Q and pawl Q will lift pawl M, and these pawls will be then out of engagement with ratchet-wheel L and the carriage may be drawn back by hand. In addition to the paWLand-ratchet mechanism for actuating the paper-carriage, I propose to use a weight R, which is suspended bya cord R over a pulley R This weight takes up lost motion when the carriage is moved forward, and is provided with a projecting arm 1' for engagement with a handle 7 of the clapper of a bell T when a line is about to be completed. The carrier-frame H is provided with a table S for the paper, which is held down and guided by rollers T, the bearings of which are in arms T, that are hinged to standards T and these arms are held down so as to press the rollers on the paper by springs T which act upon shoulders t. One of the standards is adapted for being adj usted in a slot S in the table S, by means of a screw-shaft S to accommodate the'various sizes of paper.

A scale-plate U is suspended by arms U over in front of the rollers, and an arm V, that is secured at one end to one of the standards V that guide the weight R, projects to the center and front of the machine, where it is provided with a pointer to, that indicates the position of the carriage with reference to the anvil.

The shaft of the lower paper-roller H bears in the upper portion of a slot in the end pieces of the carriage H, and has an elastic connection H with the shaft of the roller H. This may be a spiral or any other spring.

The operation of my device is as follows: The type-wheel is held up normally by the spring E, and when a letter or character is to be made the operator lifts the handle D until the point of pin e is disengaged from an indentation e and then moves the handle until the pointer 6 reaches the desired letter or character, when he depresses the handle, and with it the type-wheel and frame, to cause the type-wheel to come in contact with the paper and print a letter or character. This also, through lever O, jigs the paper-carriage once before the wheel reaches the anvil, and as each line is finished and a new one begun the paper is drawn in by turning the thumbpiece X, which is locked by a pawl y and ratchet Y. During the forward travel of the roller-carriage the weightR and cord R serve to take up lost motion and produce even spacing. The type-wheel frame may be guided and limited as well as cushioned in any suitable-manner.

WV is a shield for supporting and guiding the paper as it enters from the front.

Blank spaces are provided on the face of the type-wheel for the purpose of spacing, and these spaces are produced just as letters or characters are.

To prevent the type-wheel from making more than one revolution in case of the stretching or breaking of the cord, I provide the hub of wheel 0 with a shoulder c, which engages a similar shoulder c on the rail (1.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the arms A, the spring-controlled frame B, having its bearings in the arms and provided with the indeX-segment D the spring-controlled shaft 19, having its hearings in said frame, the type-wheel O and sheave 0, fast on said shaft, the pivotal angle-lever D, arranged with relation to the index-segment and having a flexible connection (1 with said sheave, a reciprocative paper-carriage, and an anvil opposed to said type-Wheel, substantially as set forth.

2. The combination of the rotary adj ustable spring-controlled type-wheel 0, having its hub provided with the shoulder e, and the rail (1, provided with the shoulder c in the path of the one on said hub, substantially as set forth.

The combination of the reciprocative paper-carriage provided with the rollers H H", the table S and standards T the shouldered arms T, hinged to the standards, the springs T arranged to impinge against the shoulders on said arms, and the rollers T, having bearings in said arms, substantially as set forth.

4. The paper-carriage H, having the rail '6, provided with cog-teeth, the shaft j, having stationary bearings, the cog-wheel K, fast on the shaft and in mesh with the teeth on said rail, the ratchet-wheel L, also fast on said shaft, the lever L, having the arms m, loose on the hub of the ratchet-wheel, the spring-pawl M, pivoted to the lever, the pin N, projected from said lever, another lever O, havingthe slot N engaged by said pin, the hinged frame B, and the link 1), connecting the latter lever and frame, substantially as set forth.

5. The paper-carriage H, having the rail t', provided with cog-teeth, the shaft j, having stationary bearin gs, the cog-wheel K, fast on the shaft and in mesh with the teeth on said rail, the ratchet-wheel L, also fast on said shaft, the lever L, having the arms m, loose on the hub of the ratchet-wheel, the springpawl M, pivoted to the lever and provided wit-h the loop g the pin N, projected from said lever, another lever 0, having the slot N engaged by said pin, the hinged frame B, thelink p, connecting the latter lever and frame, the stop -pawl Q, engaged with a ratchetwvheel L and having the finger q projected into said loop on pawl M, and the le ver P, provided with the pin 12, arranged to impinge against the under side of said pawl, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of WViscousin, in the presence of two witnesses.

MAX COHN.

Witnesses:

J on GRASS, S. S. STOUT.