US648739A - Dobby for looms. - Google Patents

Description

Haffmans.

Patented may a, was.

0. HAESHCHER, J. FULHABEH & E. FHEDEL.

"ma- INVENTORS,

UNITED STATES PATENT OFFICE.

O T'ro A. .1-iAEN1oHEN, `JEROME EULnAnER, AND nnNs'r hinein., or

PATERsoN, NEw JERSEY. 1

DOBBY FOR LOOMs.

SPECIFICATION forming part. of Letters Patent No. 648,739, dated May 1), 1900. .l Application led Doeemher16,1899. Serial No. 740,502. (No model.)

'f lTo all whom 'it may concern;

" Be it known that we, OTTO A. HAENIOHEN, J EROME'FULHABER, and ERNST RIEDEL, cit izens of the United States, residing in Paterson, county of Passaic, and State of New Jersey, have invented'certain new and useful N Improvements in Dobbies for Looms; and we #do hereby declare the following to be a full, clear, and exact description of the invention,

'fito such as will enable others skilled in'the. art

to which it apperta-ins to make and use the inamo, reference being had to the accompanyu ing drawings, and to letters and numerals ot reference marked thereon, which form a part 4of this specification.

This invention relates to looms, and it has reference particularly to that portion of a loom coJnpriSedjnit-S shedding meehanism.-V

Gne of the objects of the invention is to 20" employ a card-cylinder and cards as a medium for effecting the initial selection of the v harness-jacks preparatory to being vibrated Vbytheir actuating'mechanism and in combination therewith needles or similardeviees P through which the eiect of'the selection made may be transmitted to theparts to which the jacks are directly or indirectly connected, said needles andthe respective cards, each of which is provided with a plu 3o rality or series of perforations, being inevable the one relatively tothe other in such manner that any of said series of perforations may be presented to the needles.

Another' object of Vthe invention is to provide, in addition to and in combination with the aforementioned mechanism, means for ef footing automatically the. relative movement of .parts, as above indicated.

Ashcdding mechanism constructed after 4Q. thprinciples of our invent-ion will be found to be preferable to the Ordin-ary forms'of shedding lnechanism because of the fact that it does away with the use of the cumbersome and otherwise objectionable pattern-chain and accessorymechanism, and, moreover, bc

cause it is susceptible of producing a great variety of patterns without the use of extensive and complicated means for cliccting this, itbeing only necessary to increase the num- So. ber, not of thc cards, but of the series .of perfelations thereof.

-a` loom-frame.

The invention consistsI in the improved shedding mechanism constructed substantiallyA as hereinafter described, and finally embodied in the clauses ot the claim.

Referring to the accompanying drawings, Figure 1 is a view in side elevation of our i1nproved lshedding, mechanism, showing the same inoperative position upon one end Ot' Fig. 2 is a top plan view of said shedding mechanism. vFig. 3 is a vertical sectional View of aportion of the machine, showing the needles, their movable carrying means, one of the hooks, the lifting means therefor, and a portion of one of certain vibrator-levers connected to said hook. Fig. 4 is an enlarged top plan view of a portion of the machine as shown in Fig. 2, and Fig. 5iS a view iii-front elevation ci' what 'shown in Fig. 4.

o designates a portion of the loom-frame, and b designates the framefor our improved shedding mechanism, the frame b being secured to' the frame u by bolts c, asnsual.

In brackets d is arranged a horizontal shaft e, and upon this shaft are fulcrumed thoharness-jacks f, which are of 'the bellcrank-le ver pattern. 'lho means for actuating the harness-jacks, which we have shown in the accompanying drawings for the purposes of illustration merely, is substantially like that shown and described, for instance, in the patent to Cornelius Falvey, No. 490,106, dated January 17, 1893, and so we will only briefly refer to said mechanism.

g represents stationary shafts which project outwardly from the frame b and the ends ot' which are bra-ccd by brackets 71,. Said braclte'ts 7L aresupported at their 4lower ends by a shaft connecting integral arms i of the frame, and on this shaft is l'ulcrumcd a series of vibrator-levers i,which project in the direction of the harness-jacks. According to the mode/ot' actuating the harness-jacks above referred to each Ol the vibrator-levers j carries a gear j, each gear being movable into engagement, according as the vibrator-lever is in its upper or lower limit of movement, with either of a pair of cylindcrsjii, disposed the one above and the other below said gears and each having a portion 7'3 ol' itssurlaco.

7c' in Fig. 1.

Each harness-jack is connected to its corre spending gear at an eccentric point thereon by means of a pitman k. (Shown in Fig. 1.) This pitman iscontrolled by itspring-actuated presser-lever 7a2. By anygsuitable driving means the fiuted .eylindeils are rotated continuously in opposite directions. By moving the vibratu1evers so as to bring the gears into engagement with the tinted cylinders said gears may be made to rotate in opposite directions, and thus the raising andl lowering or the lowering and raising of the heddles which the harness-jacks control can be produced at will.

XVhether the jacks are provided with the actuating mechanism above described or with any of the other well-known mechanisms the train of elements comprised in the vibrator- ]evers, gears, and pitmen or other devices corresponding to said train of elementshave heretofore been selected by means of patternchains-such as, for instance, that shown at It is this pattern-chain which our invention, now particularly to be described, is intended to supersede.

p Upon preferably the upperone of two shafts l, Which shafts carry the two luted cylinders above referred toand are journaled in the frame b, is secured at one end a gear m., and upon another shaft a, also journaled in the frame b above the shaft l, is secured another gea-r o, which is in mesh'. with the gear 'm Upon theshaft fn. is also secured a parvof cams 11,'(outlined in dotted lines in Fig. 1 and in full lines in Fig.'3,) upon each-of which cams hears a roller (j, that is journaled in a downwardly-extending projection r of one of apair of arms s, which are secured to a rockshaft t, journaled in the upper rearv part of the frame b. In addition to the effect which 4gravity tends to have in keeping the cylinders in contact with the -cams a spiralr springs uis employed, the same being coiled about the rock-shaft t, one of its ends being secured to a collar e, fast' on the rock-shaft, and the other of-its ends engaging a bar fm of said frame. l

y .fr is a knife which connects the free ends of the arms s. This knife is adapted to engage and thus lift a series of hooks y, which are pivotally connected to the vibrator-levers 7' at their lower ends, being disposed vertically, as best seen in Fig. 3.

s is a. frame consisting of three elongated plates 1, disposed in parallel arrangement and secured'together near their ends by plus?, which project from one of said plates and penetrate the others, said pins carrying collars ft' for spacing the plates and cotter-pins 3 for keeping the plates in position. The ends of the middle plate extend beyond the ends ef other plates and are reducedto f'orm trunnions 4, to which pitm'cn 5 are-pivotally con- "nected, said pitmen being also pivotally connectcd to arms (i, which project from a rockshatt 7, that has hearings in the upper part of the frame b and from which also projectsv a lever 8. The frame z is guided lby virtue of the fact that the extended portions of :its

middle plate bearwith their rear faces against 7o in contact with the reartnost plate 1.' Thus 75 as the tops of said hooks are beveled off said hooks will be in such a position and willfso act that when the knife descends those which it did not engage and lift in its previous elevation will yield to it preparatory tothe next 8o Y elevation of said knife. l

' 11 represents spiral springs which connect the bar 9 and one of the plates ofthe Vfratrie a, thus normally acting to return the latter toits lowermost positie .f j Upon the stationary shaft-s g is reciprocatingly arranged a. pair of brackets 12,"each bracket having a sleeve 13, which receives the corresponding shaft and acts asa bea'ringtfor said bracket. tric connection with the' shafts la-tliroughr4 the medium of pittnen14, the-pitman on onesde of the machine being pivotally connected to the gear aand" .the pitman on the pther side of the machine being pi'votally connected fto 95 vadisk 1,5, carried on said-shafta. 'Saidpit men 'are' of course pivotalliyv conuectedl the brackets.` The brackets l1i. mayfbe'secured together-and braced inA any desircdfmanner.

In'vertical arms 16of the bracketsisjourtoo ranged in horizontal slots 2lof'saidarmsa`nd io 5 adapted to be adjusted in said slots by means .of set-screws 22, which engage the-blocks at their ends and work in ears 23, projecting from the brackets. Over the cylinders 17 and l19 extends a card-chain 24. AAt onecnd no of the card-cylinder 17 is disposed .a springl actuated nogger 25, which is adapted to bear against pairs of pins 26, projecting'from said cylinder, soas to hold the latter firml yin any position to which itis turned.

27 represents hook-levers'which are vloosely, fulcrumed on the shaft 7 and which are adapt ed to engage the pins 26, so as to rotate the cyl- 'inders in an obvious and well-known manner y as the brackets carrying said cylinders are re- 1go 1 ciprocated on the shafts g. .f

2S is a series of horizontalv needlesearried oy-and longitudinally movable in the plates of the frame z, saidv needles being connected' to the several hooks/y and adapted to be ac-v.r"2 5 tuated by' the perforated cards 24 as the 'same' are brought into engagement with theircut'er ends. -v j ,I'

Upoii' the shaft 'Z is. carried at one-endthereof a crank and handle 29 for manually 13a operating the various parts of the'machine after the 'necessary disconnection-from thel power driving means has boeit-effected. y

It should be remarked that the frame va' is The brackets have an eceen- 9o .y bythe selec-tion of the variouspositions into y which the frame .e is movable is automaticlower one of the llul'ed cylinders, so as to be under actuation of the cams A2J the remainder sitions, the number of which may befarbivthe needles 2S the non-actuation of others of said hooks proadapted-to bej elevated into'aiy offseveral'p trarily chosen. The cards should be provided with series of perforations corresponding in number to then umberof positions into which p are to be moved by the frame carrying tliem. t f' To the fre( end of the lever Sis secured one 'endtof a liexible c'onncctionft, which extends over pulleys 31 and which isconnected at its other end to suitable mechanism, wherea'lly determined. For instance, this liexible connection may be connected to the box-motion of the loom, and then it is onlynccessary to set the multiplier for actuating this boxmot-ion so that it will aetnate the needle-carrying 4frame in such a way'that the needles may properly coact with the cards which have been arranged and perforated according definite pattern of goods tolle woven As in thecase of the patented mechanism i of lialvcy above referred to the multiplier involves the use of a chain (not shown) which is caused to advance by means of a revoluble shaft T52, which isjournalcd in the frame l) and which in 'thchnachine which our invention supersedes is the one that carries Ithe chain 7t",` being operatively connected to the continuously rotated thereby. v i

'lhe machine operates as f ollows The cards of the eard-chaiufbeing perforated and arrangedso as to-properly coact with'th'e ncedles, the multiplier mechanism for operating which has already been setvin accordance with a predetermined pattern, some of said needles will be pushed back by the opposing card while the rest remain idle each time the patlern-card-selecting mechanism is reciproeatcd, this being effected through the medium of the pitmen li, which are connected tothe rotating gear o. As the selecting mechanism is reciprocated the cylinders are of course turned by the hooks 27 in the usual manner, so as to advance the cards. 'lhe movement of some of the needles disengages the corresponding hooks to which they are connected from the knife, and as the latter is vibrated of said hooks will be elevated. 'lhe rot-ation of the gear o in order to effect the reciprocation of the pattern-eard-seleetin g mechanism and thevibration of the knife is of course transferred from the gear n, with which said gear u meshes.

The raising of certain of the hooks l/ and duce a raising of some of the trains ot elements, respectively, comprising pai-tsj] and 7c and the intermediate gearj', andthe inaction ofotherof said trains of. elements. 'l`l1emovc, ment ef the frame carrying th'e needles, oecursaftcr each changing of the shed-that is to say, il lsaid frame is to be moved---this be tinted cylinders hereinbefore described, the above-described operat ion', whereby the seleccarried on whilethe-plain portions of the trains of elements. 'lherefore said trains 0f elements will be in position to be operated by the cylinders as soon as their tinted portions again approach the gears, the consequence through the elevated trains Ofclemcntsto throw the corresponding harness-jacks in one direction, while the lower lluted cylinder will ma-chine isv practically a repetition of that above described.

The operation of t he llaving thus fully described our invention,

Letters Patent, is@ k i i l'. In a harness-controlling mechanism for looms, the combination of a ti'a-me',` harness--` jacks, a revolublc shaft, means forrotating said shaft, a reciprocating pattern-eard-selecting mechanism'disposed parallel to said shaft, stationary shafts projectingvfroni said frame and disposed at right angles lto said shaft and the selecting mechanism, the latter being guided thereby, pitmen connecting said selecting mechanism and the shaft and having eccentric connection with thelattcr, hooks projecting between the selecting mechanism and the shaft, operative connection between said jacks and the hooks engaging the latter at one end, a reciprocating knife adapted to engage the other ends of said hooks, operative connection between said knife and the shaft,

the selecting mechanism and the'hooks, nee-` dles carried by said lastnamed frame and adapted to engage the hooks, and means for actuating said last-named frame, substantially as described.

2. In a liarness-c(introlling mechanism for looms, the combination of a frame, harnessjacks, a rcvolublc cam-carrying shaft, means for rotating said shaft, a reciprocating pattcrn-card-selecting mechanism disposed parallel to said shaft, stationary shafts projectingr from said frame and disposed at right angles to said shaft and the selecting mechanism, the latter being guided thereby, pitmen ing effected through the medium of the inni-- connor-.ting lsaid selecting mechanism and the g mechanism, the flexible connectionv as to operate the barn ess-jacks in opposite'di-- rections, consists of `the oppositely-rotated tion of said trains of elements is effected, is-

actfthrough the depressed `trains of'elements to tdi-rowtnereinaining'harness-jacks iiiitle other direct-ion. -Fnitheiaeperation: of the,V

what we claim as new, and desire to sccureiby fiuted cylinders are opposite the gears in said f being thatthe upper tinted cylinder .will act pattern-chain forworking the multiplier mechanism being effected;

a frame movable in the main frame between shaft and having eccentric connection with engaging ihe latter at one end, a fnlcrumed knife-carrying frame engaging the cams on said shaft and adapted to engage the other ends of said hooks, a frame movable in the main frame between the selecting mechanism and the hooks, needles carried by said lastnamed frame and adapted to` engage the hooks, and means for actuating said lastnamed frame, substantially as described.

3. In a harness-controlling mechanism for looms, the combination of a frame, a reciprocating pattern-card-selecting mechanism, means for reciprocating said pattern-card-selectin g mechanism, hooks, devices controlled by said hooks, a suitably-guided frame movable rcctilin eally between said selectin g mechanism and the hooks, springs connecting said movable frame and the main frame, needles carried by said frame, a rock-shaft journaled in the frame, connecting means between said rock-'shaft and the needle-carrying frame for reciprocating the latter, and means for actuating said rock-sliaft,substantially as described.

4. In a harness-controlling mechanism for lo'oms, the combination of a frame, harnessjacks, fluted cylinders, vibratorgears disposed between said cylinders and adapted to respectively engage them, operative connection between said gears and the jacks, fulcrumcd vibrator-levers carrying said gears, a cam-carrying shaft journaled in said frame above said cylinders, gearing connecting one of said cylinders and the shaft, a reciprocating pattern card selecting mechanism .dis-

` posed parallel to said shaft, a disk and a gear mounted on said shaft, said gear forming a portion of the gearing, pitmen connectingisaid selecting mechanism and the gear and disk, vertical hooks projecting between the selecting mechanism and the shaft and connected to said vibrator-levers at their lower ends, a

Vfnlcrumed knife-carrying frame resting on the cams on said shafts and adapted to engage the upper ends ofsaid hooks, a verti-x, cally-movable frame disposed in the mainframe between the selecting mechapism and the hooks, needles carried by said tast-named frame and adapted to engage' the hooks, and means for actuating said last-named frame, substantially as described. I

5. In a harness-controlling mechanism for looms, the combination with a frame, of a. suitably-guided reciprocating' pattern-cardselecting mechanism, means for actuating said pattern-card-seleetin g mechanism, a snitably-gnided frame movable at right angles to the movement of the reciprocating patterncard-selecting mechanism, needles carried by said movable frame, links pivotally connected to said movable frame, and means, pvotally connected to said links, for reci procatingsaid needle-carrying frame, substantially as and l for the purposes described.

G.l In a harness-controllingmechanism for looms, the combination with a frame, 'of a suitably-guided reciprocating pattern-cardselecting mechanism, means for actuating said pattern-card-selccting mechanism,a snitably-guided frame movable at right angles to the movement of the reciprocating pattern-V., card-selecting mechanism ,springs connecting' said movable frame and the main frame, needles carried by said mqvable frame and movable at right angles to the movement thereof, means for reciprocating. the needle-carrying frame, substantially as described.

In testimony that we claim the foregoing We have hereunto set our hands this 1st day of December, 1899.

OTTO A. HAENIOIIEN. JEROME FULI-IABER. i ERNST RIEDEL.v

Witnesses:

ALFRED GARTNER, JAMES '15. NEWTON.

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