US1398322A

US1398322A - Typewriting-machine

Info

Publication number: US1398322A
Application number: US283703A
Authority: US
Inventors: Alonzo B Ely
Original assignee: CORONA TYPEWRITER CO Inc
Current assignee: CORONA TYPEWRITER CO Inc; CORONA TYPEWRITER COMPANY Inc
Priority date: 1919-03-20
Filing date: 1919-03-20
Publication date: 1921-11-29
Anticipated expiration: 1938-11-29

Description

A. B. ELY.

TYPEWRITING MACHINE.

APPLICATION FILED MAR. 20, 1919.

a NW

Fatima ALONZO ELY, F GROTON, NEW YO, ASSIGNOR T0 CORONA TYPEWEITER COM- PANY, ING, OF GROTON; NEW YORK, A CORPORATION OF NEW YORK.

TYBEWRITING-MACHINE.

Specification of Letters Patent.

Patented Nov. 29, 11921.

To all whom it may concern:

Be it known that I, ALONZO B. ELY, a citizen of the United States of America, and a resident of Groton, county of Tompkins, and State of New York, have invented certain new and useful Improvements in Typewriting-Machines, of which the following is a full and clear specification.

The object of this invention is to provlde a typewriting machine with a simple and eflicient dead-key action, the principal feature of which is to so construct the mechanism that only lower-case characters will be dead, so that when themachlne is ad usted for middle-case characters as well as uppercase characters all the type will be alive, thereby increasing the capacity of the machine to the extent of two characters on each dead type-lever, as more fully herelnafter set forth.

In the drawings- Figure 1 is a perspective view of the parts of a typewriting machine needed to 1llustrate one,way of applying my invent on;

Fig. 2 is a perspective view in detail of a device for holding the rock-shaft in normal position;

Fig. 3 is a detailfront elevation ,showlng the position of the parts when adjusted for upper-case printing.

I have illustrated the present embodlment of the invention as adapted to a machine such as shown in Rose Reissue 13,935, dated June 22, 1915, but it will be understood that the invention is susceptible of application to other types of typewriting machines. In

this type of machine, the escapement-lever obtain case-shift it is simply necessary to raise the posts to thereby elevate the framebars 10 and the carriage supported upon the bed 11. This case-shifting of the carriagethat the feed-operating tappet 6 is always in position to cause a feeding operation to take place, lrrespective of case-shift. The bail 7 is shifted through the medium of the usual universal-bar 12 which is connected at its ends by links 13 to bell-cranks 14, the forwardly-extending arms of each of the bellcranks being connected by a transverse rod 15 which engages vertical slots 16 in the vertical arms of the bail, said universal-bar being in position to be operated in the usual manner by the spacing-lever 17 or one of the key-levers 18. The key-levers 18 are connected as usual to the type-bars 19, and these type-bars are pivotally mounted in the usual segment 20 fastened to the rear .wall of the machine-frame. .The case-shift levers (one of which is shown at 21) are operatively connected to a transverse shaft 22 and this shaft is connected by arms 23 to the lower ends of the posts 9. These case-shifting devices are adapted to be held up or locked in their adjusted positions by any suitable means, not shown.

To apply my present invention to the typ of machine above described, I pivot the tappet 6 at 24 to the upper 'sideofthe bail'ancl provide a light coil-spring 25 to normally hold this tappet against an upstanding stop 26 carried by the top bar of the-bail, so that said tappet is'free to be swung laterally away from said stop 26. I slidingly mount on the rear wall of the machine-frame an uprightbar 27 whose upper end is beveled off at 28, this bar bein so positioned that when it is elevated said inclined edge 28 will impinge against the left-hand edge of tappet 6 and shift the same laterally out of the path of the escapement-lever or dog and hold 1t in such' position during the backward swing of the bail, so as to thereby permit the bail to have its full backward swing Without operating the escapement. It will be understood, of course, that the bail or other'part of the mechanism is connected to upporting-frame will also shift the bail 7, so i the usual ribbon-vibrating devices so that, even when the tappet 6- is adjusted to nonfeedin osition, the ribbon mechanism will nevert e ess receive its usual vlbratory operat-ion.

I provide suitable mechanism for elevat-' ing the bar 27 every time a dead key 1S, 0perated, so that the feeding of the carriage will be avoided when a dead key is oplerfaitel' journaled in a pair of bearin s 30 fastened I prefer for this purpose a rock-s to the rear wall of the machine-frame and in a third bearing 31 fastened to the suporting lug 32-at one end of the segment. ne end of this rock-shaft is bent forwardl so as to form an arm 33 which extend through a vertical slot 34in a depending part 35 formed on the forwardly-projectinglower end of the bar 27. so that when the rock-shaft is rotated to lift the arm 33, said bar 27 will be likewise elevated.-

To operate the rock-shaft 29, -I bend that part of the shaft between the-outer. end of thebearings30 and the end-bearing 31 so as to form a forwardly-extending part 36 which lies just above the type-bar slots in the segment and is curved to approximately conform to the arcuate curvature of the segment. This curved member 36 lies in the path of one or more of the type-bars. I prefer-' ably make this part 36 long enough to be operated by any one of four or five type-bars, and those type-bars that are intended to operate this member 36 I rovide with a cam or toe 37, whose curved ace, when the typebar is thrown upwardly to printing position, strikes against the curved member 36 and imparts a forwardly rocking action to the shaft 29, to thus raise-the bar 27 and put the tappet 6 out of commission. The rock-shaft is bent upwardly and downwardly at its outer end at 38, so as to avoid contact with the end of the segment when the shaft is rocked, it being, of course, necessary that the

bearings

30 and 31 shall be in axial alinement. -The rock-shaft is held in its normal osition with the bar 27 in its down positlon by a light coil-sprin 39 which is connected at its up er end to t e forwardlyextending end 4 0 o the rock-shaft and at its lower end to rearwardly-extending lug 41 formed integral with a bracket 42 which in turn is formed integral with the outer hearing 31, said bracket 42 being also provided with ankupstanding lug 43 which serves asa stop for the shaft extension 40 to thus hold the parts in their proper position 'for operation by the type-bars It will thus be seen that upon the operation of one of the dead keys, its type-bar 19 will cause the rock-shaft toelevate the bar 27 and thus 'force the tappet 6 laterally to an inoperative position. This operation will take place during the'backward swing of the .tocarry mi ing bail 7 in any suitable manner,

' bail 7, but before the tappet 6 reaches the escapement-leverordog, so that-feeding of the. carriage will' be avoided when one of these dead type-bars is operated. The lowersired without a carriagen operation.

' case characters of the 'dead type-barsTare, as o usual, underscores, accents and any" other character where aprinting operation is deee i .With this invention, it will be 0 served that v I whe the carriage-bed is shifted upwardly to midd e-caseorupper-case position, the tappet 6 is thereby elevated, as shown in Fig. 3, to a position out of reach of the bar 27, so that when thusshifted'for middle-case. and up.- ger-case printing the operation of one ofthe ead keys, while it W111 operate the rockshaft and elevate the bar. 27, will not pre-"- vent feedin of the carriage in the usual manner; this enables me, asis obvious, to utilize the t e-case and upper-case characters, thereby increasing the ca acity of the machine to the extent of two characters for ple-heads ofthe dead type-barseach'dead key. In other words, my invention permits each dead-key action to be transformed into a live-key action when the.

machine is adjusted for printing middlecase or upper-case characters.

It'will also be observed that a feature of importance lies 'in the fact thatby employa vantageous in a machine where, as in my in' vention, thecase-shifting transforms the dead type-bars, into live type-bars, since by this scheme the addition of a dead ke to the machine for a lower-case character oes not destroy the use of that key for middle and up er-case characters.

- n' dead-key action, the problem is always I "as to how to obtain a full throw of the ribbon-vibrating lever of the carrier to print ing position wlthout feeding the carriage.

y present construction lends itself nicely to the solvin%)of this problem, since the member (bail which operates the ribbonvibrating mechanism receives a full actuation even with a dead-type action, so that the ribbon-vibrator will be completely operated irrespective of whether a live-kely action or a dead-key action is'operated. e ribbonvibrator may be operated from the swing one way of doing this being illustrated in- Petermann Patent 1,121,044, dated December 15, 1914.

aeasaef In the drawing, I have illustrated the ribbonvibrating lever in dotted lines at 45 and the means for vibrating this arm at 46, this latter means beingconnected to the bail 7 in the usual manner.

The nature and scope of the invention having been thus indicated and its preferred embodiment having been specifically described, what is claimed as new is:

'1. In a typewr-iting machine, the combination of character keys, a member operable by each key for actuating an escapement and a ribbon vibrator, type bars operable by said keys, and means operable directly by one or more of the type bars for preventing operaimpart a relative movement between said member and said type-bar-operated means into and out of cooperation relation with each other.

3. In a typewriting machine, the combination of character keys, type bars operable by said keys, a vibrating member operable by each key, an escapement-operating tappet pivotally mounted on said member, and means operable directly by one or more of said type bars for shifting the tappet about its pivot out of operative position.

4:. In a typewriting machine having an escapement and ribbon vibrator and a caseshift frame, the combination of character keys, a vibrating member operable by each key operatively connected to actuate the ribbon vibrator, a tappet pivotally supported on said member, means for normally holding said tappet in cooperative relation with the escapement, type bars operable by the keys, means operable by one or more of said type bars for swinging the tappet about its pivot out of cooperative relation with the escapement, and connections between the shift frame and said vibrating member for moving said member and tappet with the escapement out of cooperative relation with the tappet-swinging means. a

5. In a typewriting machine having a platen carriage, carriage-feeding mechanism, and case-shift mechanism for elevating the carriage and carriage-feeding mechanism, the combination of type bars, and a device operable by one or more of the type bars for rendering the carriage-feeding mechanism inoperative, said device being mounted on a stationary part of the machine and the carriage-feeding mechanism being movable by the case-shift mechanism out of the field of operation ofsaid device when the carriage is elevated.

6. In a typewriting machine having a platen carriage, an escapement, a horizontally movable escapement-operating tappet, and case-shift mechanism for moving said parts up and down in unison, ,the combination of means operable through the instrumentality of one or more of the individual type bar actions of the machine to shift said tappet out of cooperative relation with the escapement saidtappet being moved out of cooperative relation with said means when the carriage is in one of its case positions.

7. In a typewriting machine having character keys, type bars, an escapement device, and a tappet movable horizontally each time a character key is actuated to operate the escapement device, the combination of a vertically movable member adapted to shift the tappet out of cooperative relation with the escapement device, and means operable by oneor more of the type bars for actuating said member.

8. In a typewriting machine having character keys, type bars, an escapement device, and a tappet movable horizontally each time a character key is actuated to operate the escapement device, the combination of a vertically movable member adapted to shift the tappet out of cooperative relation with the escapement device, means operable by one or more of the type bars for actuating said member, and a case-shift frame, said escapement device and tappet being movable relatively to said member by the shift frame to an upper case position in which the tappet is out of the field of action of said member.

9. In a typewriting machine, the combination of carriage-feeding mechanism, type bars, a rock shaft having a portion thereof located in the path of movement of one or more of the type bars and rotatable by the printing movement of said bar or bars, means operable by said shaft for rendering the carriage-feeding mechanism ineffective, and case-shift mechanism operatively connected to impart a relative movement between the rock-shaft-operated means and the carriage-feeding mechanism to move the same out of cooperative relation.

10. In a typewriting machine, the combination of type bars, carriage-feeding mechanism, a rockable member adapted to be engaged and operated by one or more of the type bars, and means operable by said member for rendering the carriage-feeding mechanism inoperative.

11. In a typewriting machine, the combination of type bars, a rockable member located in the path of one or more of said type bars, and means operable by said member when the member is rocked by a type bar for rendering the carriage-feeding. mechanism inoperative, each t pe bar adapted to cod crate with said mem r being provided wit a cam for rockingsaid member as the type bar moves toward the printin polnt. y r

12. In a typewriting machine, t e'-'combination of a vibrating tappet support erable each time a character keyis actuat an tive position,

escapement-operating tappet movable with said su port 'to' operate an escapement and- 13. In a typewriting machine, the com-i bination of a vibrating tappet support, a universal bar for vibratingsaid support,

an segment-operating tappet pivotally .moun on said' support, means for normally holding said tappet in operative position, a sliding cam devlce' adapted to-swing said tappet about its pivot to an inoperative position, type bars, and means located in the path of one or more of said type bars and operable thereby to impart a sllding movement to said cam device.

14. Ina typewriting machine, the combination of a vibrating tappet support, a

" universal bar for vibrating said support,

an escapement operating tappet pivotally mounte on said support, means for normallv holding said tappet in operative position, a sliding cam device adapted to swing said tappet about its pivot'to an inoperative position, type bars, and a rock shaft operatively connected to impart a sliding movement to said cam device and having a crank" path of one or moreportion located in the of said type bars.

15. In a typewriting machine, the -coinbination of a vibrating tappet-support operable each time a character key 1s actuated,

'an escapement-operating tappet movable with said support to operate an escapement tain position of the shift frame.

and shiftable relatively thereto to aninoperative position, means for normally holding said tap et in an operative position, a cam device a apted to shift said tappet relatively to the vibrating tappet support to an inoperative position, type bars, means operatively connected to actuate said cam device located in the path of one or more of said type bars, and a case shift frame operatively connected toshift the tappet support relatively to said cam device to move. the tappet out of the field of action of .the cam. device in a cer- 16. In a typewriting machine, the combination .of a vibrating tappet support, a

. tion, a slidin said'tappet a ut its pivot to an inoperative the shift frame.

universal bar for vibrating said support, an escapement-operating tappet pivotally mounte on said support, means for normally holding said tappet in operative posicam device adapted to swing position, type bars, a rock shaft operatively connected'to lmpart a sliding'movement to said cam device and having a crank portion located in the path of one or more of said type bars and a case-shift frame operatively co'nnectedto shift the tappet support relatively to said '-cam device and rock shaft to movethe tappet out ofthe field of action of the 'cam device in a certain position, of

" YPeW-riting machiny t bination of a vibrating tappet supportga universal bar for vibrating said support,

pivotally an escapement -operating tappet mounted on said support, meanshfor'; normally holding said tappet inoperative position, a sliding 'cam device adapted tov swing said tappet aboutits pivot to an'ino'pera a tive posltion, type bars, and a rock shaft I operatively' connected to impart asliding movement to said cam device and-having a crank portion located in the path of one or more of said type bars, the type bars in al'inement with the crank portion of the rock shaft bein formed with cam portions adjacent their pivots adaptedto engage the crank portion of the shaft. I

18. In a typewritiiig machine, the com-' bination of an escapement device, a vibrat "ing frame, an escapement operating tappet pivotally held to the frame, a spring for normally holding said tappet in position to operate the escapement device when the I frame is actuated, character key levers, type 3 .1 05

bars operable by the keylevers, a universal bar operable directly by said key levers and connected with the frame for vibrating said frame, and means operable by one of said :type bars for swinging the tappet about its pivot to render the tappet'inefl'ective on the escapement device. v

19. In a typewriting machine, the combination of anescapement device, a vibrating member, a universal bar for vibrating saidmember, character key levers, an escapement operating tappet pivotally held to said vibrating member to swing horizon. tally vinto and, out of cooperative relation with the escapement device, and means-ope erable by one of said key levers for positively swinging the tappet about its pivot independently ofmovement of the vibrating member by the universal bar to render the tappet ineffective on'the escapement device-. 4- Y 20. ,In a typewritingmachine,the com-3 bination of an. escapement device, a vib'ratg ing member an escapement operating tap tj pivotally he ld to- -said member, means fir normally holding the tappet in position to actuate the escapement device when said member is vibrated, a slidably supported cam. adapted to swing the t'appet about its pivot to an ineffective position When said cam is moved in one direction, character key levers, a universal bar for Vibrating said member Operable through the medium of each of said key levers, and means operable through the medium of one of said key 10 levers for actuating said slidable cam independent of movement of the universal bar.

This specification signed this thirteenth day of March, A. D. 1919.

ALoNzo B. ELY.