US1526643A - Jacquard mechanism for looms - Google Patents

Description

Feb, 17. 1925. 1,526,643

L. R. PENNINGER ET AL JACQUARD MECHANISM FOR LOOMS Filed Dec. 11, 1922 4 Sheets-Sheet 1 i I M1.

Feb. 17- 1925- 1,526,643

L. R. PENNINGER ET AL JACQUARD MECHANISM FOR LOOMS Filed Dec. 11, 1922 4 Sheets-Sheet 2 fj.,jf

nuentow Feb, 17. .1925. I

1,525,643 L. R. PENNINGER ET AL JACQUARD MECHANISM FOR LOOMS Filed Dec. 11, 1922 4 Sheets-Sheet 4 UIIIIIJE' 4 j I 7 Q mvcntow been Feb. 11-1925.

- UNITED 'STTES noun; 3. PENNINGEB AND DANIEL E. TUCKEI t, OF CONCORD, NORTH CAROLINA.

racouann uncnamsm ron Looms.

Application filed December 11, 1922. Serial R'o. 606,803.

the following is a specification.

This invention relates to jacquard mechanism for .looms.

Heretofore it has been the practice to use paper cards with jacquard mechanismsbut" after the cards have been used for-some time the same become torn and otherwise mutilated with the result that unless new cards are provided or' the old cards properly v patched, the fabric produced will contain faults greatly reducing the value thereof or --'else necessitating the discarding of; the

fabric. Injury to the cards results not onl from the ordinar wear and tear to whic they are subjects but also from the failure of the cards to accurately aline with the needles cooperating therewith. It has not been possible to use cards successfully if made of any material other than paper because should the cards be improperly ositioned while passing throughthe mac ine they would,-unless formed of a comparatively soft yielding material, so injure the ends of the needles as to render'the cost of upkeep excessively high.

It is an ob'ect of the present invention to provide a acquard mechanism whereby sheet metal cards can be used without danger of injury to any of the parts of the mechanism and without necessitating frequent re airs to the cards or substitution of new car s.

Another object is to provide jacquard mechanism which operates the needles by fluid pressure, the action being quick and accurate whether or not the card perfora tions accurately match the needles controlled thereby.

Another object is to provide simple and sufiicient means for actuating the series of pattern cards in properly timed relation with the fluid controlling means whereby, immediately following the placing of each card in active-position, the fluid will be directed through the card under pressure to actuate those needles connected to the lifter I hooks to be disengaged from the griif knives. a

IIeretofore in the operation of jacquard mechanism the actuation of the needles-"has brought the lifter hooks into position for engagement by the grifi' knives. It is-an object of'the present invention to reverse this action whereby the actuation of the needles will throw the lifter hooks'out of operative relation with the grifi' knives.

A still further object is to provide pattern cards formed of thin sheets of metal so-connected asto eliminate the objectionable lacing heretofore required.

Another object is to provide fluid pressure needle operating means which is simple andv compact in construction and formed of few; parts none of which is likely to get out of.

order. Q With the foregoing and other objects, in viewwhich will appear as the description proceeds, the invention consists of certain novel details of construction and combine tions of parts which will be hereinafter more fully described and pointed out in the claims, it being understood that various changes may be made in. the construction and arrangement of the arts without departing from the spirit 0 the invention as claimed.

In the accom anying drawings the preferred form oi the invention has been shown.

In said drawings Figurevl is a view showing, in diagram, a jacquard mechanism including the present 1m rovements.

igure 2 is an enlarged view partly in section and partly in elevation of the mechanism constituting the present invention.

Figure 3 is a section on line 3-3 Figure 2, some of the pattern cards being removed but indicated by broken lines.

Figure 4 is a section on line 4-4 Figure 3.

Figure 5 is an elevation of portions of two pattern cards, showing the hinge connection th'erebetween.

Figure 6 is an enlarged section on line e c Figure 3.

Referring to the figures by characters of reference 1 and 2 designate the upper grifi knives arranged in pairs and located beneath the upper hooks 3 and 4 respectively of the lifter wires 5. These wires are provided with lower hooks 6 adapted to rest on and to be sup orted normally by the lower grate or gri plate 7 as shown particularly in Figure 2.

The wires are crossed by the "usual needles '8 which are coupled in thelusual connected to the needles of-one group while the wires carrying the hooks 4 are connected. tothe needles 8 ofthe other group.

The machine thus far described and which-has been illustrated: in Figure 1', 'is

a double-machine and as the needles of each group: are operated in the same manner as the needles of the other group, the description .of the mechanism atone end of themachine will 'apply to the mechanism at both ends. 7

All. the needles 8 of one group are slidablyfmounted, at one end, in a needle board 10 having a-numberof openings extending therethrough equal to the number of needles u in the group. The needles 8 do not extend entirely-through the board 10 but termi-.

nate.,- g;hetween the faces of the board. MOlIll'tGClwOll x0116 face of the needle board is-Jajplun-ger; board 11, having a number of ope rri;ngs..;.1;2 .extendingi therethrough and registerino- -with:; the needle. receiving openi-ngs.-:= in:= t e? board 10. A guide block 13 is arranged in contact with the board 11 and. has. a plurality of counterbored. openings' 14' extending therethrough, the large ends of the openings being concentric with the respective openings 12. The boards 10 and 11 and the block 13 can be clamped-together by. bolts 15 and, if desired, these same bolts can be used for fastening to the block 13 the flanged open end portion 16 of a pressure chest 17. The open face of 'ceive wings or flanges 19 extending from a follower 20 having flanges 21 adapted to fit snugly within the chest and to slide upon the walls thereof. Springs 22 may be. interposed between flanges 19 and block 13 so as to hold the follower 20 normally I pressed away from block 13 as shown in Figure 4.- thus to leave a clearance or pass sagewav between the block 1'3 and the follower 20 through which the pattern cards 23can pass. The follower 20 'is provided with a group. of apertures 24 equal in numher to the apertures in the block 13 and, therefore, equal in number to the needles 8 iii-one group. These apertures 24 match the apertures 14 in the block 13.

' Mounted to slide within each of the openings 14 is a plunger 25 having a piston or enlargement 26 adapted to slide within the counterbored portion of the opening 14.

rtaeme Each plunger projects through the plunger board 11 and into one of the openings in the needle board 10 so as to bearagainst the end-of the needle 8 in line'therewith. Under normal conditions (when the needles and plungers are at rest) the spring pressed needles 8 hold the plungers 25 with their outer ends flush or substantiallyfiush with that face of block 13 nearest the follower 20. Located beneath the passage between the pressure chest 17 and the block 13ers take down rolls 27 journaled in suitable supporting brackets 28 and provided with I meshing gears 29.. A larger gear 30 meshes with, one of the gears 29 and-rotates with a ratchet block 31 preferably rectangular as shownand provided near each corner with a notch 32. The rolls 27 are adapted to grip thepattern cards 23 and draw them through i the fmachine I as f hereinafter explained.-

Journaled in brackets 33 above the bloch 1.3 is a. shaft 34 to which is [connected the usual. cylinder 35 each face of; which is 9'0 17 and the block 13,- as shown in Figure 2. 1

This cylinder has notches portions thereof. I y r.

A yoke 39 is slidably supported by a bracket 40 and has a slide rod 41 extending therefrom and carrying anarm 42 having a cam slot43. This arm is movably engaged by a plunger rod 44 and by the up and down movement of this rod 44 the slide rod 41 will-be caused to reciprocate horizontally relative to bracket 40. The upper arm of the yoke 39 has a dog 45 pivotally connected 38 inthe corner the chest 17 is recessed as at 18 thus to re -"thereto and another dog 46 is pivotally connected to the lower arm of the yoke. Thus it will be seen that when rod 41 is reciprocated dog 45 will move over the far porner of cylinder 35 and engage within the adjacent notch 38 while, at the same time, dog 46 will move over the far corner of the block '31 and engage in notch 32. When the yoke moves back to its initial position the cylinder 35 and the block 31 will cach be given a one quarter rotation with the result that one card will be moved to, position between the follower 20 and the block 13 While another card'will be moved out of position between the follower 20 and block 13.v

A -cam 47 rotates with cylinder 35 and is adapted during the completion of each movement of the cylinder, to come against pressure to the pressure chest 17. The valve is normally closed.

Located below the rolls 27 and in the top of the pattern cards. suspended from the rolls are angle rails 51 forming a card rack. The pattern cards are formed of thin sheet metal and are connected together by thin metal hinges 52, the alternate pintles 53 being extending laterally from the cards as shown at 53 in Fi ure 5. Thus it will be seen that as these plntles, which extend only from the hinges at every other joint between the cards, come agalnst the rails 51 of the card rack they will gather up the cards and support them in folds, .as shown in Figure. 1, preparatory to being-drawn upwardly to the cylinder 35. Obviously the cards can thus be arranged in an endless belt so as to pass through the machine intermittently.

The pattern cards instead of being pro- Qvided with openings to allow actuation of the needles 8 in order to bringthe hooks 3 or 4 into position over the griff knives, have the openings 23 so located as to aline with those needles to be shifted for: the purpose of removing the hooks from the paths of the gritf knives. This action is the exact reverse of that which takes place in the jacquard mechanisms now used.

Assuming that the cards have been properly perforated and assembled for the purpose of producing a desired pattern, the mechanism is set in motion. As soon as a pattern card has been brought to position between the follower 20 and the block 13 the valve 49 is momentarily opened thus to admit fluid under pressure to the chest 1'2. As the result of this action the; follower 20 is shifted against the action of its springs 29- and into contact with the card 23 in the path thereof. Thus the card will he clamped against block, 13 and pressure can only escape through those openings 24 registering with openings 23 in the card 23. The

' pressure thus escaping can only enter those openings 14coinmun1catin with the open= ings 23 in the card. onsequently the plungcrs 25 located in the pressure receiving openings 14; will be shifted. longitudi nally by the pressure and will thrust longitudinally those needles 8 contacting with said plungcrs. Thus the wlres connected to theshitted needles will be moved away from .their normal positions so that. their hooks will not be actuated by the gritf knives. As soon as pressure is cut off from the chest 17 and the gritl knives have been actuated, the springs 9 return the needles 8 and the plungers 25 to their normal positions, the pressure in the chest escaping along the pat tern card and through the passage in which the card is located. S rings 22 will of course move the follower 20 Back to its initial posi tion. Following this actuation of the parts the yoke 39 will be shifted to rotate cylinder and block 31 another quarter turn thus to bring another pattern card into controlling position.

It is to be understood that any suitable means, such as a spring 5 L can be used for shutting valve 49 as soon as it is released from its actuating cam 47.

Importance is attached to the fact that the jacquard mechanism herein described permits the use of metal pattern cards and as the action of the needles is reversed from that ordinarily followed, there is no danger of the needles becoming bent or otherwise injured if, for any reason, the holes in the pattern cards do not accurately aline with the needles. As before pointed out the use the combination with needles, and needle actuating plungers separate from and 00- operating with the respective needles, of a follower having apertures therein alining with the respective plungers, means for directing a pattern card into position between the follower and the plungers, and means for actuating the follower to grip the card and supply fluid under pressure to the apertures in the card.

2. In a jacquard mechanism for looms the combination with needles, and plungers cooperating with the respective needles, of a follower having apertures therein alinin with the respective plungers, a pattern car means for feeding the same to position between the'plungers and the follower, and means for directing fluid under pressure against the follower to grip the card, said card constituting means, for releasing fluid under pressure to selected followers.

3. In a jacquard mechanism for looms the combination with needles, and plungers cooperating with the respective needles, of a pressure container, a follower movable relative thereto and having apertures alining with the respective plungers, and means for directing pressure into the container to actuate the follower and grip a pattern card, said follower constituting means for releasing pressure through the gripped card to selectedplungers.

4. In a acquard mechanism for looms thev combination with needles, of plungers cooperating with the respective needles, a block constituting a guide for the plungers, a. follower having apertures alining with the respective plungers, a series of connected pattern cards, means for intermittently actuating the cards to successively position them between the block and follower, and means for directing pressure against the follower to grip a card between the follower a pressure actuated follower, of a cylin-- der, take down rolls, said cylinder and rolls constituting means for engaging and supportin a series of pattern cards, means for intermittently actuating the cylinder and rolls to successively position pattern cards between the follower and plungers, and means controlled by the actuation of the cylinder for momentarily directing pressure against the follower to grip a pattern card and to release pressure through the card t0 selected plungers.

6. In a jacquard mechanism for looms Lease-es the combination with a cylinder, take down rolls, and means for simultaneously actuating the cylinder and rolls intermittently, of needles, plungers cooperating with the respective needles, a guide block for the plunger-s, a follower havin apertures and cooperating with but norma ly spaced from the block, said follower and block being positioned between the cylinder, and rolls,

and means for. intermittently directing pressure against the follower to shift it toward the block.

- In testimony that we claim the foregoing as our own, we have hereto afixed our signatures.

'LONIE R. PENNINGER. DANIEL E. TUCKER.

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