US1139080A - Type-writing machine. - Google Patents

Description

B. C. STICKNEY.

TYPE WRITING MACHINE.

APPL|cAT|oN FILED ocr. 5. 1912.

Patented May 11, 1915.

2 SHEETSgSHEET I.

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TYPE WRITING MACHINE.

APPLICATION FILED ocr. 5. 1912.

Patented May 11, 1915.

2 SHEETS-SHEET 2.

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NT Ti. PATENT QFFXCE.

BURNHM C= S'ECKNEY, 0?? ELZALBE'EH, NEW JERSEY, ASSGNOR TO UNDERWOOD NEW YORK, N. Y., A' CORPORATION 0F DELAWARE.

TYTQFIVTRITING MACHINE,

Tsi 39,686,

'i'iceton of Letters Patent.

Patented May 11, 1915.

@riginal applieaten eine faire s, Serial No. 163,701. Divided and this appli-fetich led October 5,

TQ all whom if,

Be it known "snr, a citizen o in Elizabeth, i

in C. STIC-n.-

residing r ion and State o Nei l te tei oertain new and u prove in ype- Nriting liiachines, of which tl tollowing is a speoieation.

This invention relates to ty ehines, and particularly to s ble writing r' jshines, in vi, oit writing is in view, peeially to r` i the l iront and is di n of my n ieegoi, nies i se, ieee My invcntio eonsists in re tain combi nations of devises, features of o nstruetion, and arrangen'ients of parts, which will be hereinafter described and particularly pointed ont in the concluding' claims; and it particularly relates to the onse-shifting mechanism.

ln the accompanying drawings, Figure 1 is a longitudinal sectional elevation of a 'front strike writing machine embodying my improvements; one type action being shown in printing position, and the platen being shown in full lines in position for writingv lower-case let-ters, and in dotted lines at uppercase position. Fig. 2 is an elevation of the bell ringing mechanism. Fig. is a front View with the carriage swung up. Figs, 4 to (3 are details of the margin mechanism.

rlfhe framework of the machine comprises side walls and rear walls forming a base i, and a depressed top plate 3. Forwardly extending type bars 4 are pivoted at their rear ends upon a curved fulorum-rod 5 mounted in a segment 6, and strike rearwardly against a platen 7. The segment is raoially slotted at 3 to receive the type-bar hubs. Each 'type-ber is provided with a lowei'-case type 9 and an uppercase type 10, the latter being uppermost when the type bar is in printing position, although this relation may be vreversed within the scope of certain features of my improvements, and the type-bars may be otherwise mounted. The typebars may 1oe operated by any suitable means, as for instance pull-links 11, extending rearwardly and downwardly from the type bars, pendent levers l2 oonneeted between their ends at 13 to Said links,

oen riting' inailled visin i the line l more es- 5eiessg ation No.

Serial No. 724,022.

a horizontal rod lll where-on said levers are iuleruined at their upper ends, horizontal links l5 connected at i6 to the lower ends of said levers and extending forwardly, and keybearing bell-cranks fulcruined upon a transverse rod 't7 and having pendent arms i3 connected at i9 to said links 15, and forwardlyextending arms 2O bearing the keys 2l. Returning springs as 22 may be provided for the type actions.

The platen 7 may be mounted by means of an axle upon a Carriage 26, which may be of any suitable construction, but preferably compri: upper and lower bars 27 and 2S, the former provided in its underside with a longitudinal groove 29, and the latter in its upper side with a longitudinal groove 30; these bars being connected at their ends by upright bars 3l and 32 formed integral therewith. An integral plate or bar 33 projects forwardly from said C011- neoted bars, and at its ends is formed with upright arms 3i and 35 in whichthe platen axle 25 is journaled. Embraced by the grooved bars 27 and 28 is a rail 36, set on edge and provided in its top and bottom edges withgrooves 37 and 38, which are provided with bearing balls 39, whereon the carriage runs, Said grooved rail 36 forms part of a movable frame, whereby the paper carriage is enabled not only to run in. letter-feeding direction, but also to move in a di reotion transverse thereto. This frame comprises, in addition to said rail (whieh may be otherwise formed in some cases) rearwardly extending integral arms G5, which are united at their forward ends by said rail, and a bar 66, which unites said arms between their ends and is integral therewith. Said arms are extended rearwardly from said bar 66, forming ears 67 and 68, which are hinged by pintles 69 in bosses 70 and 71 which project inwardly from the tops of the side walls of the framework 1. The carriage together with its supporting frame may be swung or tilted up about said hinge, so as to expose the underside of the carriage. Saidsupporting frame,.ma-y, however, be otherwise formed and otherwise movably supported within the scope of my improvements.

arriage-feedingmechanism is mounted upon the hinged carriage-supporting frame and cooperating with a rack 106 on the cab' operating arm 115, which at its rear end 1s pivoted at 116 to a pendent link 117, whereby the arm is operated; said ivot 116 being normally substantially coincident with the axis of the hinge 69 of the carriagesupporting frame, so that the operation of the escapement rnechanisnrv is substantially the same whether the frame is in normal position or shifted up to write capital letters. At its lower end said link is pivoted i at 118 to the forward end of a rocker-arm 119, which projects forwardly from a horizontal transverse rock-shaft 120. A universal bar 121 is mounted upon the tops of a pair of arms 122 which rise from said rockshaft, and lies in rear of the levers 12 of the type-actions, so as to be operated thereby, the described universal-bar frame being provided with a returning spring 123.

The connection between the ribbon-vibrating mechanism and the escapement mechanism consists of a link 124, whose upper end is pivoted to a forward extention 125 of the dog-rocker arm 115, and Whose lower end is pivoted to a short arm 126 of the ribbon vibrator. By this means, whenever the dog-rocker is vibrated by the keys, the vibrator is elevated to cause .the ribbon to cover the printing point; and upon the return of the carriage-feeding mechanism to normal position, said vibrator drops to permit the ribbon to uncover the printing point. The carriage may be propelled by a spring-barrely 127,. lying horizontally and mounted upon the lower end of a stud 128 depending from the hinged Ycarriage-frame; a strap 129 being attached to the barrel and caught upon a hook 130 upon the carriage bar 28. A ratchet wheel 1314 and pallet 132 are provided for adjusting the tension of the spring,l the former having a finger-piece 133 and the latter a finger-piece 134, both of which in normal position project downwardly, the ratchet wheel and pallet being mounted beiow the spring-barrel. Vhen the carriage is tilted up, access is given to the ratchet wheel and pallet, thus facilitating the adjustment of the spring. By mounting the spring-barrel and the carriage-feeding mechanism upon the hinged frame, the latter fis permitted to swing freely up and down, without liability of deranging the circle 7, the upper-Case types 10 are enabled to print. The downward movement of the carriage is limited by an adjustable stop 135, threaded forwardly through an arm 137 cast upon the rear wall of the machine framing; the ribbon-spool bearing arm 78 of the hinged carriage-supporting frame being prolonged below the ribbon-spool shaft, as at 138, to bear against said adustable stop. A shift-lever 139, bearing a key 140,--?

projects forwardly and upwardly from a transverse horizontal rock-shaft 141, journaled in the side walls of the base; and about midway of its length said, shaft is provided with an upright arm 142, from which extends rearwardly a link 143, whose rear end has a sliding bearing at 14.4 in the upper portion of said cast arm 137. Said link is provided with a lug 145, adapted to catch a nib 146 formed upon a hookshaped stop 1117 pivotcd at 1118 to the lower portion of said ribbon-spool carrying arm 78 in rear of the spool shaft. By depressing the shift key, the shaft 1,41 and arm 142 thereon are rocked, pulling forwardly the link 143, and by means of the lug 145 and nib 146 swinging the stop down, until said nib is arrested by a stop pin 149. Continued movement of the key, rock-shaft, arm and link then swings the frame arm 7 8 forwardly and the frameand'carriage upwardly4 about the hinge 69, until the parts'are arrested, with s the platen in the dotted line position, by the;l

Contact of the hook-stop 147 with the upper end of said cast arm 137 (which of course 'maybe provided with an adjustable stop, if desired). After the capital type or types are written, the shift key is returned to normal position by a spring 150, while the hinged frame and carriage return by gravity. A. spring 151 lifts the hook-stop 147 until it is again clear of the upper end of said cast arm 137, so that it may not contact therewith to interfere with the upward tilting movement of thecarriage to the Fig.. 1 position. During such tilting movement, the arm 78 and parts thereon are swung forwardly away from their cooperating parts mounted in the machine base; so that at any time the carriage may be given either a limited movement for writing capitals, or a tilting movement to expose the underside thereof.

To provide for writing a line of capitals,

pallet 202 rovided upon the underside of the arbor 11?(6, whereby the arbor is rocked in the opposite direction to that already described, thereby producing no effect upon the bell-clapper, but. swinging into elfective position a tumbler 203, project-ing upwardly from the head 191 of the arbor, and preferably integral with the arm 188. Said tum bler is thus brought directly beneath an extension 201 projecting forwardly from the vibrating arm of the carriagefeed ing and ribbon-vibrating mechanism, thus preventing operation of said mechanism and hence of the universal-bar and the typeactions. Normally said tumbler stands at one side of Said extension 204, in which position it maintained by a spring i205, coiled around a reduced portion of the arbor between its ends; said spring being of light' tension, and ovcrbalanced by the weight of the bell-clapper, whereby the arbor is returned in one direction by the springr and in the other direction by the weight of the clapper. Said arbor 176 is slidably journaled in said carriage-guiding rail, and its head 191 is engaged by the forked lower end of a rock arm 206, fixed upon a rook .shaft 207 journaled at its end portions in brackets 208 projecting from the rear side of said rail, and provided atI its tips with buttons 209, whereby it may be turned. By this means thearbor may 'be drawn rearwardly to a sufficient extent to enable it to clear the tappets or stops mounted upon the rack 170, thereby enabling a few more letters to he added at the end of the line, or enabling the carriage to run farther upon lits return stroke, so that the first part otl the succeeding line may be written in the left-hand margin upon the paper. A spring 210 provided upon the shaft 207, tor returning the shaft, together with the arbor, to normal position.

A second or final key-locking tappet `Lil may be formed upon the slide 195, at the right of the rst line-locking tappet 201, this tappet operating in the saine way the tappet Q01., and preventing the writing of any more letters at the end of the line. 1i, some cases, however, this. tappet may be omitted. The slide 195 may be of sullicient length to accommodate the three described tappets, or if desired each may be mounted upon a separate slide. Upon its underside the slide may be recessed, and the edge i12 of the recess may serve as an index to ed operate with thel scale on the nmrgirgagc rack, for setting: the slide to rinfr the be l or lock the line at any desired point.

Each of the tappets, as well as the stop 175, is preferably formed upon its rear side with an oblique face. as 213 and 211, which during the usual Carriage movemente cani back the arbor against tne tension ot' the spring Q10, out of thev path of the tappets or stops, so that the latter are each etective in only one direction.

It will further be observed that the rod 57, which supports the collars from which extend the paper-guiding lingers 56, is mounted in a relatively inaccessible position below the platen scale and upon the underside of the Carriage, so that when the Carriage is in normal position, it is diliicult to reach the eollars to slide them along the rod; but that when the carri ge tilted up, said collars are more arreeeihle, and their adjustment .tacilitited Variations may be resorted to wit-hin. the scope of my invention, and portions of my improienents inlay be used withoutothers.

Having thus deseribed ,my invention, l Claiin-- 1. 1n a front stri typenriting machine, the combination with segment supporting a series ot' type bara each having a plurality of printing charmttere, and a platen, ot' a ehiltlever, a platonel'iift trame mounted to oseillate up and down and having a rigid central arm arranged lower than the platen, and coiinections whereby the shift-lever :rot-S on said arin to Shir' y the platen, substantially ae set forth.

the combination with a main frames the type bars eaeh having a plurality olf printing chararters, and a platen carriage, of a ear ringe t :ift frame nhieh is pivotally een nerted to the main frame at each side ot its eenter to swing up and down and supports said carriage, a stdlib-lever, and conneetions by which the lever acte on the center of the shift-trame to Shift the platen, substantmlly set forth.

ln a typewriting iriaehine, the combina- "ion wi h a main traine, :i series of type bars, a platen, and a carriage 'for the platen, of a shift-treme supi'iorting the carriage and are ranged transversely on main trarne and connected thereto by pivots at each side of the center of the main traine and at the rear of the shift-trame, and a vibrating support conm-sting the ventral part of the Shiitfranio to the main trame, Substantially as set forth.

l. ln a typewriting niarhii'ir, the eornlnnau tion with a main traine. ieri et type bars, a platen, and :i irai-ringe for the platen., of' a shift frame supporting the marriage and arranged transversely on the main traine and connected thereto by pivots at each eide @Y the center or". the ma in frame and. at the rear of the shift frame. and a wipport 1=onneetin, the central part of the finit-traine to the main trarne.

In a typewritinef maehine. the combinan tion with a main frame. a series oi' type bars, a platen. and a marriage 'for the platen, of a shift frame supporting the carriage and arranged transversely on the main frame and loo a platen, and a carriage for the platen, of a shift frame supporting the carriage and arranged transversely on the main frame and connected thereto by pivots at each side of the ce-lter of the main frame and at the rear of the shift frame, and a device capable of supporting said sltft frame and. extending from the main frame of the machine to. said shift frame at a point about midway between the ends thereof.

7. The combination with a system of types, keys to operate them, and a platen, of a case-shift key, means operable by said key for effecting relative shift between the platen and the entire type system, a stop for arresting said shifting means when shifted by the key, said stop normally out of operative position, and means for enabling the shift key to move the stop to effective osition, preparatory to arresting the shifting means actuated by the key.

8. The combination with a system of types and a platen, of a case-shift key, caseshift mechanism operable by said key, a

stop for arresting said case-shift mechanism when shifted by the key, said stop normally out of operative position, means for enabling said shift key to move the stop to effective position, preparatory to arresting said case-shift mechanism, and a permanent shift key having means for operating said case-shift mechanism and maintaining it in shifted position While said stop remains in normal position.

9. The combination with a system of types and a platen, of a case-shift key, case-shift mechanism operable by said key, a stop for arresting said case-shift mechanism when shifted by the key, said stop normally out of operative position, means for enabling said shift key to move the stop to effective position, preparatory to arresting said case-shift mechanism, and a permanent-shift key having means for operating said case-shift mechanism and maintaining it in shifted position while said stop remains in normal position; said case-shift mechanism being normally movable to and past its shift position while said stop remains in normal position, and being also movable beyond the position at which it is held by said permanentshift key.

BURNHAM C. STICKNEY.

Vitnesses TrrUs H. IRoNs, F. E. ALEXANDER.

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