US1000741A - Type-writer-operating mechanism. - Google Patents

Description

T. A. MOUALL. l TYPE WRITER OPERATING MBGHANISM. APPLICATION FILED JUNI] 4, 1910. BENEWED APB. 14, 1911. l 1,000,741,l j Patented Aug. 15,1911.

4 BHEETB-SHEET 1.

T. 11.V MUUALL.

TYPE WRITER OPERATING MBGHANISM. APPLICATION FILED 11111114, 1910.` RBNEWBD APB. 14, 1911.

1,000,741. Patented ug. 15,1911.

4 SREETS-SHBET 2.

T. A. MGCALL,

TYPE WRITER OPERATING MECHANISM. APPLIUATION FILED JUNIN, 1910. RENEWED APB. 14,1911.

1,000,741 Patented Aug. 15, 1911.

4 SHEETS-SHEET 3.

T. A. MQGALL. "TYPE WRITER OPERATING MBGHANISM APPLICATION FILED4 JUNB 4 1,000,7'41

, 1910. BEFBWED ARB. 14, 1911.'

PatendiAuglfmu.

4 sums-'snuff 4.

Ewen/00.7.

'perforated jacquard strips,

cally operating, in proper sequence,^the le! UNITED s'rA'rEs rjilrEivT oEEioE.

THOMAS A. MUCALL, OF COLUMBUS, OHIO, ASSIGNOR TO THE AUTOMATIK) TYPEWRITER COMPANY, OF CLEVELAND, OHIO, A CORPORATIONAQI-OHIO.

TYPE- WRITER-OYERATING MECI'IANISIM.`

To all whom 'Lt may concern:

Beit known that .LTiioMAs A. McCann, a `cili'z/,en of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in T pesi/Vriter-Opg erating Mechanism, of which the following is a full, clear, and exact description.

This inventionv consists of novel means, whose selective operation is controlled by for automativers and other parts of a typewriter, to the end that such typewriter may print letters.

which are duplicates except that 4each has printed upon "it `a distinctive address.

VThe inventionis sli'ov'ynin the accompanyinted Vont in ,theclaims In the drawing, Figure l is a side elevation of mechanisinlnbodying the invention.

Fig. 2 is a plan'f'view ,of such mechanism with thetypewriter Aand its parts removed.

of the Fig.A 3 is a full sizesecti'onal side 'elevation Il is a front view of the right side of the mechanism showing particularlythe magnet andthe front ends of some .of the rock shafts20.A Fig. is a y:sectional view of one of the magnets,v Fig. 6 is a sectional. side 'elevation of vone of the rock shafts 20 and the mechanism whose operation 'is cont-rolled therebyLFig. I isnl view looking in the di, 4 on Fig. 6 -of some of the slides 10 and associated mechanism.

The typewriter frame 1, a `Vpart of whichv is shown inFig. 1, is secured npon brackets 6 which are rigldwiththe supporting frame of the operating mechanism; Associated with each' typewriter, lever 2 and ,located belowV the same is a .thin slide bar 10 which is vertically movable in guide grooves. in transversely extended bars?, 7, which are parts of thevoperating mechanjsm framework. ally with the associated t pewriter leversQ, or other 'mechanism to lie operated. The pivot 4 at the lower end ofl each link 3 goes through a vertical slot l1 .in the "slide 10,

and'normally ,lies in; thelu'pper end of this Speccaton of Letters Patent.

front part of said mechanism. Fig.

Links 3 connect the slides j-10 sever-A Patented .Augz 15, 1911. Renewed April 14, 1911. Serial No. 621,129.

slot. This permits the manual depression of the typewriter keys wit-hout moving any ofthe operating mechanism.

Associated with each slide is a horizontal rock shaft 20 which 'extends forwardand backward from the slide,.-the ends of said rock shaft adjacent'. to theY two tripfcarrying cylindersBO, 31to be presently referred to. lt will be understood that there are as many of the slides 10 as there are levers 9., or other mechanism in the typewriter to be operated by slides 10; that the slides are located side 4by side and in a transverserowi that there is an equal number of"le"`rick shafts 20; and that theserroclt shafts pass between adjacent slides.

Pivoted to each slide 'l0 is a trigger 12 which .is `in""t1e form of a bell'cranlr lever having a. vertical arm 12* and a horizontal arm l2". A spring 13 acting on this trigger exerts a force tending always to rock said Vtrigger into a position (shown by dotted linesin'Fig. 6) determined by a stop pin 14 fixed to the slide and going throughfa slot l5 in the trigger. The tri ger, however, is normally restrained from eing swnng by this spring, and is held in` a position in which its vertical armdoes not project be-y ,yond the vertical edge of the slide, by the engagementwith the horizontal arm of said trigger of a finger 21 which is fixed to and, projects. down from the4 associated rock .shafta i Just in front of all the slides 10 is a depressor 50, which, in Vthe form shown, is a horizontally extended bar fixed to two arms lwhich are in turn fixed to a transversely v extended rock shaft 52.' This rock shaft has at each-end a third arm 53 to which are pivoted the eccentric straps 54. These straps embrace the rotatable eccentrics 55 fixed to a shaft 56, whereby the rock shaft 52 is con- :tinuously rocked, and the depressor 50 convibrated up and down the rel 4 tinuously quired istances.-

It will be understood that when any rock shaft 20 is'rocked, the `nger 21 attached thereto is withdrawn from its osition above the horizontal arm 12 'of 't e trigger, asshown by the second fngerfrom the left in Fig. The trigger is thereupon swung by .its spring 13 so that the upperlend oi its vertical arm 1Q'al passesbeneath the depressor. During the next downward movement -5 of the deprcssor the associated slide 10 is mm'ed down, and it. through the link 3, opfcrates the associated typewriter lever 2. In the 'meantime .said rock shaft 20 has been released by the mechanism 'which rocked it, and a spring Q-lreturns it to its normal 'position (determined by the engagement of a linger with a fixed position its finger 21 is directly over the horizontal arm of the trigger. When the 'depressor moves upward., a springl moves the depressed sl ide upward to its normal position, determined by the engagement of a shoulder 17 with one of the bars 7. During this upward movement of the slide the horiztmtalarm of the trigger strikes the linger :21, and the trigger is dra-wn back to its normal position.

Any of the rock shafts 2O may be rocked by trips 40 carried by either of two rotatable transversely extended cylinders 30 and 31. One of these cylinders is atthe front of the machine, and the otheris at the rear of the machine-both being adjacent to thev proximate ends of the rock shafts 2 0.' In each of these cylinders are circumferential rows of radial holes. In each hole is a freely movable trip 40. `These trips are pins, and 'each has a head 41 on its inner end to limit its outward movement. There is also within each ofthe cylinders 30 'and 31 a concentric cylinder 32 which limits the inward move- .ment of said trips, A

Two properly perforated jacquard strips 45, 46, go spectively. Prongs 33 on the cylinders` engage in perforations'near the edges of the strips and draw said .strips along as the associated cylinders are turned. v.Associated with thesetwo cylinders respectively are the electro-magnets 60, 61, which are substantially as long as the cylinders'. The magnet 60 is located close behind the cylinder 30; and the magnet 61 is located close in front of the cylinder 31; and the ends of the cores of said magnets adjacent to the cylinders, arel curved (but not concentrically wit-h the cylinders), so that for a considerable dista-nce they-are close to the surface of the. `cylin ders. These magnets are always energized, and'they are always exerting a. force tending t pull 'the trips 40 (which are made of steel) outward through holgain the associated jacquard strips. The grips, however, normall'r prevent this action, but when any trip comes opposite a perforation in the strip, that trip is--drawn outward; and this carries yits outer end to a. position where, as the cylinder rotates, it will, as it. moves upward with the cylinder, strike the beveled, 85 lower endA of an arm 23 fixed tothe end qt pin 8) in which l may not stick to the cylinders over which over the two cylinders 30, 31, re#

-may be applied for the associated rock shaft 20, and thereby said l'oclt shat't will bc rocked with the results heretofore described. It is to be understood that one of these operating arms 23, with a beveled end, is attached to each end of each rock shaft. It does not matter, therefore, whether one cylinder or the other is in rotation. The same rock shafts may be selectively operated by the described trips 'of either cylinder, and. tiiesame results w1ll follow.

In order that thel jacquard strips 4 5, 46,

they run, the combs 54 are provided. These are fixed in position, but overhang the cyl-inders-their ends being close to the surfaces. thereof so as to insert themselves between the paper and the cylinder yand thereby guide the strips away from the cylinders as the latter turn.

It will be understood that the two cylinders 30 and 31 are to be rotated consecu-` tively and not simultaneously. In the -construction shown for accomplishing this result there are two shafts 85 and 86 mounted in suitable bearings; and these shafts carry the two worms 87 and 88, which res ectively engageand operate worm wheels 3? and 38 fixed to the two cylinders 30 and 31. Suitable clutch mechanism may be employed for connecting either shaft to the source of power. As shown, a jaw clutch member 90 is rotatively mounted on each -of -these shafts. It has no longitudinal movement, but it does carry a beveled gear 91 which meshes with a beveled gear 65. On each of the shafts 85 and 86 is a longitudinally movable jaw clutch member 92 having a circumferential groove 93. A clutch Vo erating bar 94 is provided at its ends with p1ns'95 which respectively engage in these grooves. This bar is pivoted to the upper ends of two parallel-levers 96, to either of which power moving the clutch operator with the result Yof either opening both clutches, or of closing either `and opening the other. Y The gear 65 meshes with the gear 81 on the main driving ,shaft 80. A gear v82 fixed shaft meshes with a to a shaft 84 to which ear 58 meshing to the eccentric to the same drivin beveled gear 83 fixed also is secured 'a beveled with a beveled gear 57 fixe shaft 56. The particular mechanism above-described for turning the two 'cylinders consecutively and for impartin the rotary motion to the other parts descriv ed is` the product of mechanical skill merely, and may, be Superf. ceded by anyother mechanismadapted to produce the Stated results. When the mechanism which has been previously de- .scribed and which constitutes the invention dened by the appended claims is a part of :1.mac`h1n'e 4haviilgethjer functions to per-13o los' Vscribed will be operated automatically, but Such automatic ineclianism is not shown because it is not at all essential to the present f invention. which would operate equally well if the clutirhes were shifted by hand..

As previously stated, the magnets and 6l are continually exerting their attractive force upon the trip pins tending to draw them outward. ln order to insure that the outward push of a great number of such magnetically attracted pins shall not push the jacquard strips away from the surface of the cylindersyeacli magnet is provided, on its end adjacent to the associated cylinder, with a plurality of thin projecting ribs -62 which are disposed between the rows of trip pins with their outer edges close to the surface of thecylinder and approximately concentric therewith. These ribs limit the possible outward movement of the jacquard strips.` and keep them iii proper engagement' with the cylinder. At the same time theyv do not at all interfere with the required outward movements of the trip pins. Preferably these ribs are formed by thin plates vof brass clamped between the front edges of the soft iron laminat-ions or plates, of which the cores of the magnets are composed.

It hasv not been easy to arrive at a construction of the cylinders 30 andV 31, such that the trip pins could be easily placed in the many holes of said cylinder in association with the concentric inner cylinder 32 for keeping them from4 dropping inward. In the construction shown, however, this result is attained. Each of these cylinders is made-ol a plurality of short longitudinalil sections, which, whenr assembled, are keyed upon a. central shaft 44. Each section coinprises the outer cylindrical member 30a and the inner concentric member 32. Each outer section is provirledvzat one end with a cylindrical flange 30b which is fitted intoa rabbeted `groove in the end of the associated inner section T he end members 30c of the cylinder have inwardly directed flanges'4 30 which are likewise keyed upon the shaft 4:4; and two nuts 47 (only one ofwliich is shown, and that in Figxl) are screwed upon the threaded parts ot the sliatt 44, 'thereby Iclamping the several cylinder sections to-4 gether to form a rigid structure.

Having described my invention, l claim: 1. In typewriter operating mechanism, the combination with a typewriterlever, oi a slide, mea-ns connecting itwith said lever, a

ltrigger which is carried by said slide and is movable automatically when released Vinto the path of the depressor, a-rock shaft hava fingcrwhich normally engages'said the trigger nwhen releasetl, and meansv for,

rocking said rock shaft in the trigger vreleasing direction, and means for returning said rock shaft to its normal position. 'Y

2. lnA typewriter' operating mechanism, tho combination with 'a typewriter lever. ot' a slide, means connecting it with said lever, a spring actuated trigger' carried by said slide, a rock shaft having a finger which normally engages said tridger and holds it in an inoperative positl'oii a vibrating depresser adapted to engage the trigger when released, an arm fixed. to said rock shaftaud having a beveled' end, a rotating cylinder carrying a circumferential row of trips, each of which, when projected, is adapted to engage the beveled end of said arm and there by roel; the rock shafhmeans tending to coinpel the outward movement of said trips, to l released, two arms attached respectively toA opposite ends of said rock shaft, two rotatable cylinders placed respectively ad jacent .to the operating arms on said rock shaft, each ofsaid )cylinders havin@ a circumferential row of trips adapted when moved outwardly to engage the adjacent rock shaft arm and rock the roel:` shaft, jacquard strips ruiming respectively over said cylinders and normally holding the trips in inoperative position but having perforations through which said trips may be drawn into operative position, and means for draw ing the trips lthrough said perforations.

4. In typewriter operating mechanism,

the combination of lever operating devices,

means 'respectively connecting them with the levers of a typewriter, a vibrating depressor, a trigger carried by each lever` operating device and adapted to move automatically into the path of said depressor,

dea-'ic'es normally restraining such movements ot tlietriggers, a-pei'forated jacquard strip, and mechanisms whose selective operation is controlled by said jacquard strip for operating'said restraining devices in thetrigger releasingdirections. K

5. In typewriter operating mechanism, the combination of a plurality of slides each carrying a. movable spijinglactuated trigger,

a plurality of rock shaftsiissociated respec# tively with said slides and each having a finger which normally engages" the trigger of theassociated slide and holds it in an inoperative position, a perforate'd jacquard strip, means controlled by said strip for selectively rocking said rock shafts in the trigger releasing direction, and a vibrating depressor which will engage the released trigger and move the associated slide.

(E. In typewriter operating mechanism, the combination with a typewriter lever, oi' a slide, means connecting said. slide with said typewriter lever, atrigger mounted on said slide, a rock shaft, means operated by the rock shaft for holding the trigger in an inoperative, position, two sets of mechanism for turning said rock shaft in the trigger releasing direction, means for operating either set of said rock shaft Ioperating mechanisms,

and a vibrating depressor adapted-to engage.

a released trigger and move it and the slide which carries it.

7. In typewriter operating mechanism, the combination with a typewriter lever, of a slide, means connecting said slide with said typewriter lever, a trigger mounted on said slide, a rock shaft,A means operated by the rock shaft for holding the trigger in an inoperative position, two sets of mechanism for turning said rock shaftin the trigger releasingqdirectionmeansifor operat? ing either set of rock siiaft `operating mechanisms, avibrating depressor adapted to engage a released trigger and move it and the slide which carries it,

the trigger to their normal positions.

8 In typewriter operating mechanism, the combination with a typewriter lever, a vertically movable slide, means connectin the slide with said lever, a spring actuated triggerV in the form of a bell crank lever pivoted to said slide, a spring actuated rock shaft having a finger which normally engages the horizontal arm of -said trigger and holds said trigger in an inoperative position against the action of its spring, a jacquard strip, means controlled by said jacquard strip for rocking said rock shaft in opposition to its spring-whereby said trigger will be released to the action .of its sp1-lng, and a vibrating depressor adapted to enlgage the released trigger. 4

9. n typewriter operating mechanism in v combinatlon with a typewrlter lever, a vertically movableslide having 1n it a vertical slot, a link connecting the lever and slide, a trigger havin a slot and pivotally mounteiwith connection thereto allowing of a limited range ofk movement, the latter connection being a pin which lies in said slot, a perforated jacquard strip, and means controlled thereby for operating said slide;

10. In typewriter. operating mechanism,

the combination inder carrying a plurality of circumferential .rows "of trips,4

and mechanisms for returning the rock shaft the slide and a jacquard strip running over said cylinder for preventing or permitting the outward movement of said trips to operative position, a magnet placed adjacent to the. surface of said cylinder and exerting its attractive force to move the trips oi'itward, said magnet being provided with ribs projecting toward the cylinder in planes 'intermediate of the rows of trips, and the edges of said ribs lying close to the surface of said jacquard strip.

ll. In typewriter operating mechanism, the combination of a cylinder carrying a plurality of circumferential rows of trips, a jacquard strip running over said cylinder for preventing or permitting' the outward movement of said trips to operative position, a magnet placed adjacent to the sur`- face-of said cylinder and exerting its attractive force toV move the trips outward, said magnet being provided with ribs projecting toward-the cylinder in planes inter mediate of the ilows of trips, andl the edges of Isaid ribs lying close to the surface of said jacquard strip, and means whose operation -is selectively controlled by said trips for operating the levers of a typewriter.

12. In typewriter operating mechanism, the combination of a cylinder having a. plurality of rows of circumferential holes, a plurality of trip pins holes and having 'heads upon their inner ends to .limit their outward motion, a cylinder within said perforated cylinder for limiting the inward movement of said pins, a

l magnet placed adjacent to said cylinder and exerting its magnetic force to draw said pins outward, a jacquard strip running over said cylinder to prevent or permit the outward movement of said pins, and mechanisms 'whose' operations are caused by the projecting pins 4for moving the levers of .said typewriter. In typewriter operating mechanism, a rotatable cylinder co'lnprislng a central shaft and 'a lurality o flongitudinal seceions,- 'each section consisting of an inner cylinder which rected flange which passes between-the elds of adjacent inner cylinders, and means apf plying endwise-clamping force to said sections to bind them into a rigid structure,-

each of said outer cylindrical sections hav-v ing a plurality of circumferential rows of radial perforations, and each of said perforations containing a freely movable pin havingl a head on its inner end between the outer cylindrical 4section and the inner cy` lindrical section. j

14. In typewriter operating mechanism, the combination of a rotatable cylinder having a plurality lof circumferential rows'of outwardly moving trips, means tendingto move said trips outward to .operative-posifreely movable in said is keyed to said shaft, and; an outer cylinderA having an inwardly di`- tion., a jacquard strip running over the `cy1 In testimony whereof, I hereupto aix nder and controlling said outward move my slgnatulfe in the presence of twogwi@n v merit of the trips, Aand a comb Whose teeth nesses.

lie close to the surface of the cylinder interrTHOMAS A. MGCALL. mediately of said rows of trips,A whereby Witnesses: it strips che j aequard strip fromsaid cylin-V E. Ll THUBBTON,"

der as the latter turns. H. B. SUILIVAN;

Copies o! this patent may be obtaied for vecents each, by addressing phe Commissioner of Patents,-

washington, n. c.

Images