US885057A

US885057A - Type-writing machine.

Info

Publication number: US885057A
Application number: US38725807A
Authority: US
Inventors: William Kraft
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-08-06
Filing date: 1907-08-06
Publication date: 1908-04-21
Anticipated expiration: 1925-04-21

Description

No. 885,057. PATBNTED APR. 2l, 1908. W. KRAFT. l

TYPE WRITING MACHINE.

APPLICATION FILED AUG. 6. 1907.

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No...885,057. PATENTED APR. 21, 1908. v W. KRAFT.

TYPE WRITINGA MACHINE.

APPLIUATION FILED AUG. 6, 1907.

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No. 885,057. y PATENTBDAPR. 21.1.01J W. KRAFT;

TYPE WRITING MACHINE.

APPLICATION FILED AUG. 6, 1907.

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UNITED sTATns WILLIAM KRAFT,` OF BALTIMORE, MARYLAND.

, TYPn-WRrTING MACHINE.

To all whom it mayv concern:

Be it known-that I, WILLIAM KRAFT, a citizen of the United States, residing at Baltie more city, in the State of Maryland, have ini typewriting machines, especially that class Which have circular platens and reciprocating carriages carrying the same: and the objects.f of my improvements are, first, to operate the laten and feed the paper thereon line by 'ne by means of a key or bar in or. adjacent to the key-board; second, to operate the carriage in its reciprocating motion, bringing it line by means of a key or bar in oradjacent to the key-board; and, third, the operation 'of the above tWo mentioned movementsl by means of one and the same key or bar in or adjacent to the keyboard. I attain these objectsby the mechanism illustrated in ings, in which* Figure 1 is a rearl View of a type'writing` machine, showing only such parts of the machine as are necessary toshow the connection and Working of my invention therewith; Fig. 2 is an end View taken at right angles to the view shown in Fig. 1.

Fig. 3 is a front view of a part of the typewriting machine showing such parts of the machineas `are necessary to show the working of the operating key for reciprocating the carria e.

Similar numerals re er to similar parts throughout theseveral views.

1 is the main frame.

2 is the platen.

3 is the carriage.

k4 is the ratchet wheel secured to the end of the platen.

5 is the platen feeding lever, which operates ratchet wheel 4 by means of paWl 6, is

the accompanying drawfulcrumed at 7, has handle 8 and extension 9.

10 isthe Wheel lever which is fulcrumed at 11, and upon one end of whichv is journaled Wheel 1,2.; the other end of said lever 10 be- Pin 14 is secured to ex? tension 9 of feeding lever 5, said pin operating in slot 13. On pin 14is friction roller 15 to reduce the friction and Wear to a minimum.

' Specification of Letters Patent. l Application filed August 6,

1907. serial No. 387,263.

16 is an incline adjustably secured to'rod 17 by means of sliding boss 18 and set-screw 1-9. The face of incline 16 is sha ed to operate in wheel 12, the face of whichy wheel is shaped suitable to operate on incline 16.

20 is the operating lever fulcrumed at 21. 22 is a link connecting o erating lever 2O withquadrant gear 23 'Whic quadrant;k gear 23 is Journaledat24. Quadrantgear23o er lPinion 25 is secured to s aft 31 yand operates the same. On shaft'31 is secured operating wheel 26. Operatin Wheel has secured thereon one end of a flexib e band or chain 27 which winds thereon and the other end of which is secured to vthe carriage.' Shaft 31 is journaled in

bearings

28 and 29,

-ates pinion 25.

PATENT '.oFFroE. a

Patented Apri1'21, 1908.

and 3 0 is a band adjusted-by a spring inthe sameway.

The operation 'of my invention is as follows: The carria'e is operated in the usual Way-bymeans ofiY an esca ement action not shown operated by the eys and a spring tending to keep band 30 in tension. When it is desired to replace the carriage to the beginning of aline operating lever 20 is depressed which thereby operates pinion 25, o eratlng-whe 26, thus winding 'flexible han 27 thereon, thereby'hauling the carriage against the tensionin band 30. At a predetermined en'd the line of writing and feed the platen for a new line, incline 16 is located on rod 17 and secured there by a set-screw, catch, or some similar means.

back to initial position for Writing, wheel 12 encounters incline 16 and rises thereon, thus depressing the otherend of wheel lever 10 Iwhich carries therewith pin 14 and extension 9 attached thereto, thus Afeeding the platen; the number of spaces fed being predetermined by the amplitude of movement alloWed'- feeding lever 5. As the carriage is fed forward, Wheel 12 descends on incline 16, thus allowing feeding lever 5 to recover itself to initial position.

What claim as my invention, and desire tol secure by Letters Patent is- In a typewriting machine, the combina-` tion of a carriage, a key, connections from said key-to said carnage by Whlch the carrlagels given a return movement upon de As the carriage is brought.

cuadrant gear 23, e

80 point where it is desired toy pres'sion of tliekey, e platen carried by seid carriage, a ratchet .upon said platen, a line spacing lever ism operativ engaging said ratchet, mechanely connected wlth seid hne 5 spacinv lever, and en inclined member ect Justaby mounted upon the mechlne frame which engages said mechanism near the end of the return movement of the carriage to rotate the platen, substantially as described.

i WILLIAM KRAFT.

Witnesses: 1 l l CHAS. S. READ,

RAYMOND H. WHITING.