US2304920A - Jacquard machine - Google Patents

Description

Dec. 15, 1942. T. E. HOLLAND l-:rAL 2,304,920

JACQUARD MACHINE Filed Aprill l5, 1940 2 Sheets-Sheet 1 ATTOR N EYS Dec. l5, 1942. T. E. HoLLAND ETAL.

JACQUARD MACHINE File'd April 15, 1940 2 Sheets-Sheet 2 NVENTQR v.

ATTORNEYS Patented Dec. 15, 1942 OFFICE JACQUARD MACHINE Theodore E. Holland and Charles De Buck, Paterson, N. J.

Application April 15, 1940, Serialy No. 329,790 2 Claims. (Cl. 139-332) Our invention relates to new and useful improvements in jacquard cylinder movements.

An important object of our invention is to ,card fully clears the needles, at which time the cylinder will be actuated to position the succeeding card in correct alignment with the board preparatory to the advancement of the same into cooperative relation with the board.

Still another object of our invention is the provision of a mechanism of the above-mentioned character wherein the cylinder is posiassociated therewith.

Yet another object of our invention is to provide a mechanism of the above-mentioned has a reversing means incorporated therewith, whereby, the cards may be progressively backed up or retrogressed.

following description.

In the drawings, forming a part of this specification, and wherein like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a device em- Figure 2 is a the line 2-2 of Figure 3,

Figure 3 is a rear elevation of our device,

Figure 4 is a fragmentary transverse sectional View taken on the line 4-4 of Figure 3,

Figure 5 is a fragmentary vertical sectional View taken on Figure 6 is a fragmentary side elevation illusone complete trating the cylindrical rotating mechanism after the initial movement of our device in a direction away from the needle board of the loom,

Figure 7 is a view similar to Figure 2, but showing the cylinder rotating mechanism after the device has moved a maximum distance away from the needle board,

Figure 8 is a fragmentary Vertical sectional View taken on the line 8-8 of Figure 3,

Figure 9 is a front elevation of our device, and

Figure 10 is a fragmentary view illustrating one of the card positioning plungers incorporated in the needle board structure of the loom.`

In the accompanying drawings, wherein for the purpose of illustration, is shown a preferred embodiment of our invention, the numeral I0 designates a jacquard frame provided with horizontal slide rods II which may be rocked in any manner to impart a reciprocating horizontal movement thereto, the rods usually being given reciprocatory movement for each beat of the loom. It is to be understood that only such parts of the Jacquard loom are shown as are necessary to set forth the present invention and to illustrate its association with the constituent parts thereof.

The present invention is primarily concerned with the position of the cylinder and with the mechanism for imparting rotation thereto. The numeral IZ designates plate supporting brackets mounted on the square terminal ends I3 of the slide rods II, and retained in xed association therewith by the locking pins i3d. The frame I4 extends between the brackets l2 in confronting relation to the needle box I 'I of the Jacquard loom and the opposite ends thereof are provided with a pair of vertically spaced elongated slots I5 which register with the vertically aligned horizontally elongated slots I6 in the brackets in a manner to permit the same to be bolted, or otherwise secured together. The normally elongated slots I5 and I5 permit the frame I4 to be longitudinally and vertically adjusted relative to the needle box whereby the perforated plate i8 carried by the frame may be positioned in properly adjusted relation to the needles I9.

The spaced vertical supports 20 are secured to the outer faces of the brackets I2 and coextend a substantial distance above the plate in a manner to position the cylinder ZI between in vertically spaced relation therewith. The cylinder includes a shaft 22 having its opposite ends jcurnaled for rotation in horizontally aligning bearings in the supports and substantially square heads 23 fixed to the shaft and extending therespaced slightly inwardly from the said supports. The corners of the heads are connected by longeronsrZ which define an elongated'essentially square cylinder positioned in such relation to the plate i8 that the outer faces of the inner pair of vertically aligning longerons 2li will lies in the same plane as the inner face ofthe plate.

The heads 23 are provided with outwardly extending lugs 25, 2li, 21 and 28 at the corners thereof, which lugs are abuttingly engaged by the spring urged stop members 23. Each of the stop members comprises a stem 33 slidably mounted in vertically aligning openings in the vertically spaced arm portions 3|, 32 and 33 of the supports 2G, and a transverse head portion 3ft normally held in engagement with the lower pair of lugs by the coil spring 35. The springs 35 seat against the arm portions t2 and the transverse pins $5 carried by the stems 3l) in a manner to hold the heads 3 in yieldable engagement with the lugs.` When arranged in the above manner the heads 3d will act to hold the outer faces of the inner vertically spaced longerons in the same plane as the inner face of the plate i3.

Means for imparting rotation to the cylinder is provided, which meansincludes a circular gear 31 xedly secured at one end of the shaft 22 intermediate the support 2li and the lugs 25, 2P, 21, and 28. The gear is adapted to mesh with the circular idler gear 38 journaled on the stub shaft 3d which projects from the support 2E). The shaft ill has its opposite ends @l and d2 journaled in horizontally aligning openings in the supports 26 and the circular gear i3 is journaled thereon in meshed relation with the idler gear 38. The end i2 of the shaft lll! extends outwardly of the support and carries the spider M thereon, The spider includes a center plate l5 formed with outwardly extending lugs 46, 41, 4% and 49 arranged in the form of a square and adapted to be yieldably engaged by the spring iniiuenced stop member 5i). The stop member 50 includes a stem iii slidably mounted in vertically aligned openings in the outwardly extending bracket arms 52 and rThe transverse head portion 54 of the shank is normally held in engagement with the lowermost pair of lugs of the spider lil-* by the coil spring 55, the lower end of which seats against the bracket arm thereof seats against the transversely extending pin 5d carried by the stem. The stop member Eli normally holds the spider M against casual rotation and with the upper edge of the head 55 thereof engaging the lowermost pair of lugs to hold the same in horizontal alignment.

Rotation may be imparted to the gear :Q3 by the pawl pivoted to the frame lli of the jacquard. The free working end of the pawl is fashioned into a depending essentially V-shaped formation to define a hook '59 and an outwardly and upwardly extending terminal end til having a cam face (i l. The pawl normally bears against the topmost pair of lugs of the spider 414 and with the hoolr 59 disposed a substantial distance therebeyond, as illustrated in Figurel. Reciprocating movement of the rods ll will first move the frames 2d and the adjuncts associated therewith in a direction away from the needle board l1. No motion will be imparted to the gear i3 until after the initial outward movement of the arms i ll and until the first of the upper pair of lugs of the spider engages the hook 59 of the pawl, After such engagement continued movement of the arms il will effect the rotation of the gear 53 and the upper end i.

through an arc of substantially 45, as illustrated in Figure '7, whereby the outermost of the pair of spider lugs engaged by the head of the stop member 5d will be moved upwardly in a clockwise direction and the resilient action of the spring 5i against the other of the lowermost lugs will cause the gear to complete a turn of 90 to move the inner most of the upper pair of lugs into engagement with the head lill. Rearward movement of the arms il will cause the cam face 6l of the terminal end of the pawl to bear against the Y outermost of the upper pair of spider lugs and to ride over the same without effecting reverse ro- Y tationof the gear t3.

:ward ti avel by virtue of the lt may thus be seen that one complete reciprocatory movement of the arms li forwardly and rearwardly will cause the gear d3 to make a quarter of a revolution. The turning of the gear will not be effected until the plate i8 has moved neri-nelly from the needle board i1 a sufficient to clear the needles As soon as the plate has cleared the needles, the spider ill will be eby the pawl dd in the manner hereinabo described to eleot the rotation ci the gear lThe quarter turn imparted tothe gear ly rcciprocation of the arms il will be comp before the arms complete their rearspring pressed engagement of the stop member d with the lugs the der. After the gear has completed the i d rearward movement of e arms l i will cause the plate i@ to be advanced `.y toward the needle board in properly aligned relation therewith. rl`he gears 31, 38 and i3 have a one to one ratio, whereby rotation oi "ie gear to a quarter of a turn in a given '.recticn will impart an equal rotation in the aine direction te the gear 31 to effect the rotation of the cylinder 2l.

The series of pivotally connected pattern cards d2 are with the cylinder in the well known manner, one of the cards being held in engagement with the uppermost pair of longerons by the dogs e2 and spring arms the sucseeding card being held in engagement with the outer faces of the innermost pair cf vertically aligned longerons by another pair of dogs C52 and ley the elongated spring arms ed. The arms il are of sufficient length to extend across the late it in a manner to hold theseries of pattern cards depending from the cylinder 2l in apnressed relation with the inner face of the The stop members 29 and 5l) yieldabiy with the lugs projecting from the cppo- D Y site ends of the cylinder will assure the proper positioning of the same after each actuation thereof and will assure the proper alignment of each of the cards with the plate i3 as moves downwardly from the cylinder` The spring arms are sufficiently resilient in their nature permit card supported by the topmost pair of longerons to be moved to the inner vertical side of the cylinder without danger of tearing or otherwise injuring the same and, after such rotation of the cylinder, the arms will move into engagement with their respective cards to hold the same in appressed relation with the longerons.

By virtue of the manner in which the cylinder is pos oned with its inner face in vertical alignmen w h the inner face of the plate i8, each of the cards will be progressively lowered into junta por' on with the plate in a manner whereby no rota ng parts will coact with the needle board I1. 1n the past considerable difficulty has been experienced by attempting to feed the cards one at *2,304,92() A a time to the needle board by rotation of a cylinder disposed in cooperative relation therewith. The angular movement required to present each new card to the board resulted in the cards being subjected to severe strains. The cards were frequently torn land the consequential jamming of the machine resulted in an unnecessary loss of time and labor. In our operation, the plate is first moved normally away from the needle box, another card is lowered into juxtaposition with the plate while the same is removed from the needle box and the plate is thereafter advanced normally toward the needle box with all parts in properly positioned alignment.

In order to assure the proper alignment of the needle board I1, plate I8 and the intervening card 62, we have provided each end of the needle board with an adjusting plunger 65. The outer end of the plunger is rounded as at 66 and the rearward end thereof is provided with a shank 61 which operates within the sleeve 68 and against the resilient action of the coil spring 69. Each of the cards and the plate I8 is provided with registering openings whereby movement of the plate toward the needle box will permit the rounded ends of the plungers 65 tofirst enter the openings 10 in the card and to thereafter enter the openings 10' in the plate to assure the proper alignment thereof with the needle board before the needles I9 are engaged.

'Ihe lower end 12 of the reversing lever 1I) is pivoted to the actuating handle 1I and the handle is pivoted to the support 20, as at 13. The lever 10 extends upwardly from its pivot in outwardly spaced relation with the plate I8 to abuttingly contact the pawl 58. The spring arm 14 carried by the bracket I2 h'olds the lever against the innermost pair of vertically aligned lugs of the spider 44, and the resilient action of the spring arm will permit the lever to be moved in the direction of the bracket upon rotation of the spider in a manner not to interfere with the free rotation of the cylinder 2|. The upwardly directed hook portion 15 of the lever 10 is normally disposed a sufficient distance below the lugs ofthe spider to permit the same to rotate without engagement therewith; however, upon downward movement of the operating handle 1I the hook 15 will be moved upwardly into engagement with one of the spider lugs to rotate the spider in a direction opposed to the direction of rotation imparted thereto by the pawl 58. As the lever moves upwardly to engage the lug of the spider, th'e abutting end thereof will elevate the pivoted pawl 58 out of engagement with the lugs of the spider to permit the lever to eiect the rotation of the gear 43 a quarter of a revolution in an anti-clockwise direction. Upon actuation of the reversing mechanism, the arms II may make a, complete reciprocation without engagement of the pawl with the spider and the pattern cards 62 will have been regressively moved by the operation of the lever 10.

It may thus be seen that we have provided a cylindrical movement for a Jacquard loom wherein the series of pattern cards will be progressively lowered into juxtaposition with a plate which is arranged to travel normally toward and away from the needle board of th'machine. The movement includes means to automatically seriately move the cards into operative relation with the needle board, and means to automatically render the rst mentioned means inoperative and to regressively move the cards relative to the needle board when desired. Each of the movements is eifected evenly and smoothly in a manner whereby tearing of the cards and the consequential jamming or injury of the needles is eicaciously prevented.

It is to be understood that the form of our invention, herewith shown and described, is to be taken as a preferred example of the same, and that various changes in th'e size, shape and arrangement of parts may be resorted to without departing from the spirit of our invention, or scope of the appended claims.

Having thus described our invention, we claim:

1. In a Jacquard machine, a frame, a verticaldisposed backing plate mounted on the frame, a rotary rectangular cylinder mounted on the frame above the backing plate operative to present cards at the front face of the backing plate, the said backing plate and cylinder being disposed so that cards at the front of the cylinder and they backing plate respectively will assume approximately coplanar arrangement, and a pair of spring arms mounted on the frame and extending transversely of the cylinder and backing plate for yieldingly pressing cards against the front of the cylinder and the backing plate.

2. In a Jacquard machine, a frame, a backing plate mounted on the frame, a cylinder operative to present cards at the front face of the backing plate rotatably supported on the frame, the said backing plate and cylinder being disposedso that cards at the front of the cylinder andthe backing plate respectively will assume approximately coplanar movement, and an elongated spring member having one end fixed to the frame extending transversely of the cylinder and the backing plate so as to simultaneously resiliently press cards against the front of the cylinder and the backing plate.

THEODORE E. HOLLAND. CHARLES DE BUCK.

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