US840121A - Electrical type-writer. - Google Patents

Description

PATENTED JAN. 1, 1907.

G. W. DONNING. ELECTRICAL TYPE WRITER.

APPLIUA'IIIOH FILED MAY 27. 1903.

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. means for '..operating the t "levers; v

N ED STATES PnTENT orrrony GE QRG WQ license, OF EAST ORANGE, NEW JERSEY, AssIe'NoR To HARRY T. AMBROSE, OF ORANGE,

ELECTRICAL naseousi.

Specification of Letters Patent.- Application filed May Z'l. 1903- Serial No. 158,964-

NEW JERSEY. TYPE-welfare.

Patented Jan. 1, 1907. i

To; all whom it may concern: i a.

= Be it known that I, GEORGE W. DoNNING, a citizen of} theUnited States, residing at East Orange, in the county of Essex, and

v State; of New Jersey, have invented certain new and useful Im rovements in Electrical e-Writers and. do hereby declare the fol-' lowing to be a full, clear, and exact description of the invention, such as will enab e others skilled in the art to which it appertains to make and use the same. I The object, of this invention is to provide means for operating the t e-bars in a type-' writer, wherein the mova e carriage carries both the'writing mechanism and thekey-bar, e-bars from a common source of ewer, w 'lethe' selecting means are operated "Another object is to provide in a typewriter an improved form of means for operating'all of the key-bars from a common power-bar, while the selecting means is operated by the key-levers.

ran emen't, an

- arts, between the side members of the mile A are supported two rods B B A set of key-levers-C are each suspended by a pair of links C 0 Aretractile springE serves to retain the links and key-lever in their normal 0p: erative position. The links C 0 and re't-ractlle spri' g together normally sustain the key-- lever in position; but when said lever is depressed the typeebar is actuated, placing the spring E under tension, and this will'then,

. 4 after'the type bar'has reached theprinting- 3 point, serve by acting on the links C C? to return the same to normal position, and this independent of the operation; of any of the parts hereinafter described,

An upright lever D is pivoted to a sub,-

leyer D whose other end is connected with by the usual form ofkeyseries of levers, type-bars and connecting parts that are arranged ra ally, asshown in the type-bars D by link D There are a At the rear of the machine is an 'el'ectro magnet'E, having an armature E pivoted the casing. Another pair of levers E pivoted to the casing them a power-bar E".

The levers E are on a rod E whose ends are supported'by a pair of levers E E, pivoted to the si es of tr'c'a and carry between each pivoted to one ofthe'leversE aiid a" retractile spring E serves to retain the:

power-bar, armature, and connectedpa'rts in their norm armature 2 the power-bar will be moved downward.

has a foot d, bar, butnormally retained out'of the 'path'of movement of the power-bar bya retractile' ejpring (P. The key-levers each have an arm I a1 upper position, but when-the electromaggiet is energized and attracts the The upper portion of each thelevers D 1 projecting toward the powerhavin a cam-face 1 that when the lever-is bring its foot (1 into the path'of movement of the power-bar.

being energized, brought'an o erating-lever" D into this said position, the owerin of the' power-bar will move the lever D on wise" downward, which latter movement through 'thesublever and connecting-link will serve to rock the typebar, it being understoodthat there .is anapeac key-bar. Upon release of t they will be returned to their normal ing returned y a co1led spring C.

'propriate operating Iever and t' eb'ar' for ese' parts.

pos1- tions, the type-bar and connected parts he depressed will'strike a similar face2 ensue of the upright levers D, and thereby force" the latterlever toward th'e'po'we'r bar-and" U v on the -electromag'iiet w en a key shall have Y In order to cause the m ca operating the.

power-bar to be energized by the'power-b'ar, I provide each key-lever C I y the depression of the key after the key shall have rocked theoperatingdever D into pesition to be engaged 7 ice witha pivoted deterit F, having at itslowe'r free end a beveled foot F an'd a lug or proj'ection 3. Arranged in the path of move ,ment of each detent is a lever F one end of which is provided with a beak or projection 4, which is designed to be engaged by the projection on the detent F, and thereby be rocked on its pivot 5 to throw its opposite tremity upward and into engagement with r a spring terminal member F, which forms one terminal of a circuit, includin a battery or other source of power and the dlectromagnet E. The levers F 3 are all suitably connected with. the other terminals of said circuit. lherefore when any of said levers F are rocked the magnet will be energized.

It is to be understood that the lower ends of the dctents F are so arranged relative to the beak or projection t on the levers F that during; the initial depression of the key-levers C said detent will not immediately engage and rock the lever to complete the circuit, but such engagement and rocking-will occur only when the cam-face l of arm shall have engaged sufliciezotly with the cam-face 2 on the lever I) to have brought the lover I) into a position of enga omen-t with the poweubar.

, the key-lever, after havin rocked the opeI' iiUHgdQ'VB/I llwrll cause t c detent F to be cam-face 6 and carried further down and by reason of the formation of a eam-fece 6 between the beveled foot F and the lug 3 on the detent the local; 4 on the lever will be caused to ride along said resiliency of the terminal member F Then the h1g3 on the detent will have passed over the end of beak 4 and the lever is then allowed to disengage from the terminal F and return to its normal posit-ion, thereby breaking the circuit, and deenergize the power-bar net. of t is detect and tends to meintainit irrnormal position. During the return movement ofthe key-lever to normal position thc beveled upper edge 7 of the lug 3 will permit'the detent to latch by the book 4 without rocking the lever F, so that the circuit will not again be closed to energize the magnet during the return stroke of the key-lever.

The universal power-bar E is preferably constructed in the form of a segment, so as to be in operative relation to the type-bars mounted as shown. At the rear it is conveniently provided with OPPOSltBlY-Llll'86t8d rigid arms E, which extend 'ai'allel with the front of'the laterally-trove ing carriage A and may project somewhat beyond "the ends of the power-bar arc. The outer ends of these arms are shown as beingbeut a'tright anglcs as at E",'and.to these angled portions are pivoted the lovers E The ends of the power-bar may be provided with angled extensions E, to which are pivoted at E a pair of supplementary levers E these latter being pivoted in turn at E" to the casing Connecting members E are pivoted at their ends to the lovers E and E insuring the simultaneous movement of these elements. The levers E and E thus constitute a parallel link mechanism, by means of which the tilting of the power-bar is avoided.

Then the furti or movement of cil'ect a slight further rocking of the lever F, (which is permitted by the A spring F is disposed to the real" The electromagnet may be connected with a stationary. source of electricity, such as a battery, by'a flexible cable that. mey'pass over a roll at the rear of the machine and then be connected with the said source underneath the base, sufficient slack in the cable being provided to allow for necessary longitudinal and transverse shifting of the movable carriage.

Without limiting in self to the construction and arrangement ereinbefore set forth, what I claim as new, and desire to occurs by. Letters Patent, is-

1. The combination with a set ofdownwardly-acting I typvbars, operating-levers connected therewith, key-levers disposed edjvxcent thereto, coinciding alzouttingfaces a!" ranged on said operating and key levers for positionin the operatingdevers in operative position, urine; movement ofthe-key levers, an operatinwbar disposed. to impinge upon said operating-levers, to depress the same when positioned, so electromagnet for actusting said o eratiug-b er, and mesnsoperated by the furt or movement of the key-levers for establishing a circuit through the electromagnet to energize the same, and, by still fur' ther movement of said kc -levers, for cfiect ing a discontinuance of sai circuit, and means for returning the operating-bar to operative position.

2. The combination with a set of downwardly-acting type-bars, operating-levers connected therewith, key-levers disposed ad jaeeut thereto, coinciding abutting faces arranged on said operating and key levers for positioning the operating-levers in operative position, duringmovement of the key lcvers, an operating-bar disposed to impinge upon said operating-levers, to depress the same when positioned, an eletromagnet for actuating said 0 crating-bar, and means operated by the fort er movement of the key-levers for establishing a circuit through the electromagnet to energize the same, and,by still fun ther movement of said key-levers, for effectranged on said operating and key levers for I positioning the operatingdevers in operative position, during movement of the key-levers, an operating-bar disposed to impinge upon said operating-levers, to depress the some when positioned, auelcctromagnet for actuc ting said operating-liar. and means operated by the further movement of the keydevers' for establishing a circuitthrough the electromng'net to energize the same, and, by still for their movement of said key-levers, for effecting, a discontinuance of said circuit, and

: crating-lever,

means for eflecting return of the 0 bar to normal scribed.

4. The combination cratingposition, substantial yvas de- With a set of type-bars and an individual selecting device for each of said type-bars, of a power-bar for operating all of said' type-bars, and an electromagnet for actuating said power-bar; said selecting device comprising an operating-lever and a key-lever movable, first, and, in succession,

to position the operating-levers into the path of actuation of the power-bar and, then, by continued movement to effect energizing of said electromagnet for actuation of said poWer oar, and, finally, by further move, ment, to'efiect deenergizing of the said 8166-. tromagnet to bar; an abutting ating-lever, an tapositioned to face disposed on sai operarm on said key-lever juxsaid abutting face of the op means for effecting im ingement of said arm against the abutting ace to position said operating-lever, a spring-actuated detent carried by the key-lever and a rocker-lever disposed independent of the keylever and, durin movement of the key-lever, cooperating with the detent for effecting energizing of the electromagnet to actuate the,

power-bar, substantially as described.

5. The combination of a sehof-typesbars, a set of operating-levers each connects one of said type-bars and arranged to operate one of the same when moved endwise, a stop on each of said levers, a power-bar, a cam-lug on each of said levers, a set of key-levers cor' responding to said levers, an arm on each of the key-levers arranged toengage a cam-lug on oneof thesaid operating-levers, and there-,

by rock the lever and bring its stopinto position to engage the means on the key-levers to 0 erate said power-bar, substantially as descrl ed.

v 6. The combination of a set of type-oars, a set of operating-levers each connected with one of said type-bars and arranged to operate one of the same when moved endwise, a stop on each of saidlevers, cam-lug on each of said levers,'a power-bar, a set of key-levers corresponding to but independent of the op crating-levers, an arm on each of the keylevers arranged, during one part of-movement of the'key-levers tdengage th'e cam-lug on one of said operating-levers and thereby rock the lever and bring its stop into position to engage the said power-bar, an electroniagnet arranged to operate the power-bar,

and a circuit-closerarranged to he'operated by the key-lever u on the further movement substantially as described. 7; Thecnmbina-tion of a set of type-,bars,:a-

set of operating-levers each connected with one of said type-bars and. arranged to operate permit return of said ower' said power-bar, and

a set. of'operating levers one of the same when moved endwise, a stop on each of said levers, a cam-lug on each of said levers a power-bar, a set of key-levers corresponding ,to the operating-levers, an arm on each of the key-levers arranged, during the first part of movement of the key-levers, to engage a cam-lug on one of said operatinglevers and thereby rock the lever and bring its stop into position to engage, said powerbar an electromagnet arranged to operate the power-bar, and a circuit-closer arranged to be operated by the key-lever upon a continued movement of the same after having rocked the said operating-lever and thereby cause the said magnet to be energized and move the power-bar, said circuit-closer being arranged to be released u on a further movement of the ke -bar, I an also arranged not to be operated rther upon the return movement of the key-bar, substantially as described;

to eac "of the shafts upon which said links are pivoted, a set of operating-levers each connected with one of said type-bars andarranged to operate one of the same when moved endwise, a stop on each of said levers, on each of said levers, a set of key-levers corsespond-ing"to'saidlevers, an. arm on each of the key-levers arranged, during the first part of movement of/ the key-levers, to engage a cam-lug on one 0f the said operating-levers, and thereby rock the lever and bring its stop into position to engage the said power-bar, and means on the key-levers arranged to causea further movement after rocking said cam-lever to operate said power-bar, substantially as described. r

set of operating-levers each connected with one of said type-bars, and arranged to operate one of the same when moved endwise a stop on each of said levers, a segment-shaped power-bar, means for movably supporting the power-bar so that it will remain substantially parallel with a given plane in its several positions,'a cam-lug on' each of said levers, a. set of 'k'ey-levers corresponding to said levers, an arm on each of the key-levers arranged to engage, during the first part of movement of the key-levers, a cam-lug on said operating-leversand thereby rock'the lever and. bring its stop into position to ehmovement of' the same after rocking said cam-lever, said power-bar to be operated, substantially as described.

l 10. The combination of a set of type-bars,

one of said type-bars and arranged to operate oiie-of the same when moved endwise, a stop on each of said levers, a power-bar, a cam-lug 8. The combination of a set of type-bars, a I set of o erating-levers, a pair of links pivoted operating-levers, a pair of gage the said power-bar, and means on the key-levers arranged to cause, upon a further each connected with I o 5 '9. The combination of a setof'type-bars, a

on each of said levers, a set of key-levers corresponding to said levers, an arm on each of the key-levers arranged to engage the camlug' on one of the said operating-levers and thereby rock'the lever and bring its stop into position toengage the said power-bar,- an

'electromagnet, an armature connected with erating-leverinto position of engagement with the power-bar, said notched detent being arranged to be rocked upon a further depression of the key-bar and release said terminals, being also arranged to be rocked on the return movement of the key-lever to avoid 'the adjacent terminal lever, substantially as described.

11. ,The combination with a set of operating-levers, of a set of key-levers, each arranged for selecting a particular operatinglever, a magnetically-operated power-bar, means operating during the depression of the key-lever for positioning a selected operating-lever into the path of the power-bar, a

power-bar magnet, means for energizing the power-bar magnet during the further depression of the key-lever, and, during an additional, continued depression of the power bar, for deenergizing the power-bar magnet, independent of the movement of the powerbar, and independent means connecting with the operating-levers and constructed to return the same to normal position independent of the position and movement of the power-bar, substantially as described.

12. The combination with a set of operating-levers, of a set of key-levers, each arranged for selecting a particular operatinglever, a magnetically-operated power-bar, means operating during the depression of the key-lever for positioning a selected operating-lever into the path of the poWer bar, a power-bar magnet, and means for energizing the power-bar magnet during the further depression of the key-lever, and, during an additional, continued depression of the powerbar, for deenergizing the power-bar magnet independent of the movement of the powerbar, the power-bar and the operating-levers being constructed and relatively arranged to permit return of the key-levers to normal position independent of the position and movement oi" the power-bar, and the key-lever being constructed to return to said normal position without again eil'ecting energizing of 'the power-barmagnet, substantially as de-- scribed.

13., The combination with a set of operat- I ing-levers, of a set of key-levers, each arranged for selecting a particular operatinglever, a magnetically-oplerated power-bar, means operating during t e de ression of the key-lever for positioning a se ected o erat' ing-lever into the path of the pow'erer, a power-bar magnet, means for energizing the power-bar magnet during the further depression of the key-lever, and, during an ad ditional, continued depressionof the powerbar, for deenergizing the power-bar magnet independent of the movement of the power bar, and means for effecting return to normal position of the operating-levers, independent I of the movement of the key-lever, substantially as described.

14; The combination with a set of operating-levers, of a set of key-levers, each arranged for selecting a particular operatinglever, a magnetically-operated power-bar,

means for movably supporting the-power bar, means operating during ,the depression of the key-lever for positioning a selected opcrating-lever into the path of the power-bar, a power-bar magnet, means for energizing the power-bar magnet during the further depression of the key-lever, and, during an additional continued depression of the powerbar, for deenerg zing the power-bar magnet independent of the movement of the powerbar, means for efi'ecting return to normal position of the.operating-levers independent of the movement of the key-levers, and means for eii'ecting return of the key-lever to normal position without again energizing the powerbar magnet, substantially as describe.

15.- The combination with a series of pivoted type-bars and operating-levrrs connected therewith, of a set of movable key-levers for selecting a particular type-bar-operating arm, a magneticallv-actuated power-bar arranged to operate a selec ed operating-lever to actuate a typerbar'fan electric currentcontrolling device "operat d by each keylever to efl'ect closing and then opening of' an electric circuit independent of the movement of the power-bar for operating and returning the selected 0 )erating-lever during the downstroke of the key-lever, and means constructed to return the type-bar to normal position after actuation independent of 1 the return movement of the key-lever andtvpe-bar-opcrating-arm, substantially as described 16. The combination with a series of pivoted type-bars and. operating-levers connect ed therewith, of a set of movable key-levers for selecting a particular t \,'pe-bar operating arm, a magnetically-actuated power-bar arranged to operate a selected operating-lever to actuate a t y pe-bar, an electric current-controlling device operated by each key-lever to effect closing and then opening of an electric 5 ing return of the key-lever to normal position without again clos1n the electric circuit,

substantially as described.

l7. The combination with a set of operating-levers, of a set of key-levers, each arranged-for selecting a particular operatinglever, a magnetically-operated power-bar,

means operating during the de ression of the key-lever tor positioning a se ected operating-lever into the path of the power-bar, a power-bar magnet, means for energizing the power-bar magnet during the further depres sion of the key-lever, and, during an additlonal, continued depression of the powerbar, for denergizing the power-bar magnet independent of the movement of. the powerbar, -means for effecting-return to normal position of the operating-levers independent of the movement of the key-levers, means for effecting return of the key-lever to normal osition without again energizing the powerar magnet, actuating type-bars, and means constructed to return the type-bars to normal position, after each actuation, independent of the return to normal position of the key-lever s, substantially-as described.

18. The ombination with a set of operating-levers, of so! of keylevers, each arranged for selecting a particular operatinglever a magnetic-a1ly-operated power-bar, means operating during the depression of the key-leverfor positioning a selected operatinglever into the path 01 the power-bar, apower bar magnet, means for energizing the powerbar magnet during the further depression of the key-lever, and, during an additional, continued depression of the power-bar, for deenergiping the power-bar magnet independent of the movement of the power-barfmeans for effecting return to normal position of the power bar and the operatii'ig-levers independent of the movement oftlie key-levers,

means for effecting return of the key-lever to normal position without again energizing the power-bar magnet, actuating type-bars,

and means constructed to return each typebarto normal position, after actuation, inde pendent of the position of the power-bar, substantially as described. i

In testimony whereof I affix my signature in the presence of two subscribing witnesses.

{ANDREW W. STEIGER,

CHARLES GIBBS.

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