US1067318A - Type-writing machine. - Google Patents

Description

G. B. CORGORAN.

TYPE WRITING MACHINE.

APPLIOATION FILED MAY s 1, 1912.

' 1,067,318. Patented July 15, 19.13.

FIG. 4. a

WITNESSES! unrrnn STATE$ PATENT oFFIoE.

CORNELIUS ,B. CQRCORAN, NEW YORK, N. Y., ASSIGNOR TO. UNDERWOOD TYPE- WBITJER COMPANY, OF NEW YORK, N. 1., A COBJPORATION'OF DELAWARE.

rYrn-wnirmo MACHINE.

Specification of Letters Patent.

\ fication.

This "invention relates to letter-spacing mechanism of typewriting'machines, whereby the carriage ay be advanced more than one space "time."

At the end of a sentence it is customary to" leave two or three and sometimes even four or five letter-spaces, before beginning the next sentence. In the usual type of machine, the operator hasto depress the space- I framework. A-lmk 6- extends from rthe opkey o'ri'fesponding number of times. Theobject of the present invention is provide means whereby a single depression of" akey will cause the carriage to ad- Vance a predetermined plurality of letter spaces independent, except as limited by the range of the carriage travel, of the position of the carriage at the time when the key-is depressed, a

A key, which is independent of theprinting mechanism and may for'conveniencebe called a multiple-space or carriage-jumping key, is provided upon the keyboard, which 'key' is connected so as to raise a pinion.

mounted. upon an arm into mesh with the feed rack of the carriage, so as to lift the same off from the. escapement pinion. The

icarriage thus freed is advanced by its impelling spring until the pinion, which may be .termed .the multiple-space pinionris arrested by an adjustable stop. mounted upon the arm. The key is then released, whereupon the feed rack reengages the escapement pinion and the multiple-space pinion "is returned to it's original position by a spring. By adjusting the stop upon the "arm to the ,properposit'ion, the carriage may be caused to advance any desired number of spaces.

In the accompanying draw ngs, Figural ent invention applied thereto.

' sition of the multiple-space pinion when out of engagement with the feed rack. Fig. 3

1s a View similar to Fig.2, illustrating the multiple-space pinion in engagement with the feed rack, the latter having been lifted Patented July 15, 1913.

off from the escapement pinion' and advan'ced several spaces. Fig. 4- is a plan showing m-detailthe pinion mounted in the fcrked arm of a 'lever' which, is connected to the multiple-space key. Fig. 5 is a perspective detail view of the pinion and its returning spring. i

- The multiple-space key' 1 is mounted on a bar 2 which may be fulcrumed on fulcrum rod'j2 together with'the other key bars of the'maohine. A link 3 extends from the bar 2 to one arm of a bell-crank 4 fulcrumed upon a suitable bracket 5, attached to the posite arm of the bell-crank to another bellcrank 7 having a forked arm .8 in which is mounted a pinion 9., which is adapted to ofi' from the pinion 12 of the .escapement' mechanism. When the key l-is depressed and, through the connections above de-- scribed, the carriage is lifted free from the escapement pinion, the impelling spring of the carriage advances the latter a number of spaces as determined by the extent of rotation of the multiple-space pinion 9. v

The extent of rotation of the .pinion 9 is determined by an adjustable stop 13 consisting of a screw which may be inserted in one of a number of aperturesli formed in one prong of t-he forked arm 8. This stop is contacted by a cooperating projection or stop 15 secured to the pinion 9.

A spring 16 normallymaintains the'pinion in retracted position, holding the projection 15 in engagement with a fixed stop 17 a secured to the forked arm. One end of this spring may be conveniently attached to the, projection 15 and the'other to the' stationary screw or pin 18 upon which the pinion rotates.

The apertures 14 may be positioned so as to/correspond to letterspaces of the car-Y riage. 'Thus, if the stop. is placed in the "firstaperture, the depression-of the multiplejspace :key -.will cause the carriage .i'eed forward two spaces; if the'stop is placed in the second aperture the carriage will feed or jump forward three spaces, and so on. The position of these apertures may also so be chosen that, when the multiplespace key is released after the carriage has been fed forward, the feed rack will be in proper position to mesh with the teeth of the escapementj pinion. Variations may be resorted towithin the scope of the invention, and portions of the improvements may be used' without others.

Having thus describedmy invention, I claimi v f 1. In a typewriting machine, a carriage, a feed rack connectedv thereto, escapement mechanism, a pinion movable into. engage: ment with the rack to lift the same oil from the escapement mechanism, and a stop mounted adjacent to said pinion to l imit the rotary movement thereof;; said stop adjust able to vary the number of letteraspaces throu h which the carriage.jumps.' 2. n a typewriting machine, a carriage, a feed rack connected thereto, escapement mechanism, a pinion movable into engagement with therack to liftthe-same ofi from the escapement mechanism, two. stops mounted adjacent "the pinion, apro'ection said stops, and a spring holding the projec:

on the pinion adapted to e ge eit er of ti-on against one ofjsa stops ing relatively adjustable. I

3. In a typewriting machine, a' carriage, a feed rack thereto, .eecapement stops be mechanism, a pinion movable into engagement with the rack to lift the same ofifrom the escapement mechanism, a fixed stop and an adjustable stop mounted. adjacent the 40 pinion, a projection on the pinion adapted: to engzge either; of said stops, and a spring adapte to hold the projection one of said stops I p a v I i 4. In a typew 'ting machine, a carriage," a feed rack connected thereto, escapement mechanism, anrarm mounted adjaoent'to the .rack, a pinion mounted on the arm, a plurality of apertures insaid arm, a stoppin adjustable in any of the apertures, a projece' tionon the plnion adapted to engage the stop to limit the rotary-movement of the pinion, and means for actuating the arm so 4 as to bring the pinlon into enga ement. with the rack to lift the same free capementmechanismf 5. In a typewritingimachine, a carriage, a.feed rack connected. thereto, escapement mechanism, an arm mounted adjacent to the ,rack,'a pimon mounted on the arm, a plurality of apertures in said'arm, a stop pin adjumble in any of the apertures, a rojection from the esv on the inion adapted to enga e o to limit the rotary movement oi the gin ion,

means for actuatingthe arm so as to bring the pinion'into engagement with the rack to;

6. In a typewriting machine, a carriage,

a feed rack, escapement mechanism, a forked bell'crank mounted adjacent the rack, a pin-- ion mounted on thebell-"crank, a pro ection formed on the pinion, a fixed stop and an adjustable stop onthe bell crank adapted. to

be engaged by said projection, a spring for holding said projection against one of said stops, :1 link connected to said bell crank,. and a key mounted on the keyboard connected to said -link.

1 [7. In atyp'ewriting machine, a. carriage,

a feed rack, escapement mechanism, a'forked bell crank mounted adjacent the rack a pinion mounted on the bell crank, a projection formed on the pinion, a fixed sto and an adjustable stop 'on the bell crank a apted. to

be engaged by said projection, a spring-for holding said projection a ainst the fixed,

stop, a link connected to sai bell crank, and

a key mounted onthe keyboard connected to said p U I 8; In a typewriting machine,va carriage,

letter-feeding mechamsm therefor, and.

carriage forward a uniform? numberof .ni eans for releasing thecarriage from the letter-feeding mechanism and-gjumping'the, I

ment-from' substantially any position of the" arresting the carriage a jumping a uniform number of spaces from substantiallyany position of the carriage and adjustable means .for varying'the number of s "aces to be .jumpedat the operation of said Key.

10. In'a typewriting machine, a carriage,

carriage its travel, said means including 2 a. art ad iistable to determine .thenumber.

10b" ewritmg machine, a carriage, a feed rack connected thereto, escapement a feed rack connected thereto, escapement' mechanism including. a lifting the rack off from t e pimon, a second pinion, and anadjustable stop'for cooperat inion, means for ing with the second pinion toarrest the carriage afterjumping'a variable number of v spaces from substantially any: position of. t ecarriage.

'11 The combination of a'power-driven carr1age,-a device movable by said carriage V but normally disconnected therefrom, a carriage-jumping key independent of the printing devices and connected to. said movable device to connect it to the carriage, means adjustable to'determine the number of letter-spaces said movable device shall be moved by said carriage, and a.letter-feeding mechanism releasable by. said key.

105 able stop brought-i810 by'said key for Y 12. The combination carriage haying a hsengaged from "said r rack ln-gkey independent; of the printing devices 5 aqd connected to sa id wlth saidrack 0 arr earring; having avlette 1e b'ysaid key,

releasa pinion to engage it est the carriage, said r-feeding mechanism and means adjustable letter-spaces umped by the carriage while driving said 16 CORNELIUS B. CORQORAN Witness'ess- C. "RIPLEY,

F. E. ALEXANDER.

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