US1539178A - Loom - Google Patents

Description

May 26, 1925. Y 1,539,178

- J. GIARDINO LOOM Original Filed 1111 18 17, 1922 wrmzssxm I ldatcnted May 26, 1925.

UNITED STATES JOAGHIM GIARLDINO, 915 WEST NEW YORK, NEW JERSEY.

LOOM.

Application filed June 17, 1922, Serial No. 569,124. Renewed November 6, 1924.

To all whom it may concern.

Be it known that I, JoAomM GIAnniNo, a citizen of the United States, residing at ll cst New York, in the county of Hudson and State of New Jersey, have invented new and useful Improvements in Looms, of which the following is a specification.

This invention relates to looms and particularly to an improved mechanism for apparatus of this class for controlling and regulating the let-off of the terry warp and also to provide for the formation of loops of different sizes in the manufactiu'e of a predetermined fabric; and the object of the invention is to provide a mechanism of the class specified with compensating means for controlling the terry warp and placing the same under slight tension, and further to provide means for controlling the operation of the reed frame to regulate the size of the loops to be formed; and with these and other objects in view, the invention consists in an apparatus of the class and for the purpose specified, which is simple in construction, efficient in use and which is constructed as hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

F 1 is a diagrammatic view of parts of a loom and illustrating the parts of my mechanism in one position.

Fig. 2 is a view similar to Fig. 1 with parts in a different position; and,

Figs. 3 and 4 are diagrammatic views showing the loop formation.

In the art to which my invention relates, there are many types of looms, but in order that my apparatus may clearly be understood, the following brief description of the operation of looms in general is submitted. Looms employ what is known as a lay, supporting a reed frame having a reciprocating movement by means of a crank shaft in the machine, and in the operation of beatin in the weft, the shuttles are maintained on the lay and are actuated by the picking up mechanism of the machine, which command and operate the shuttles through the shed of the warp and place the weft across the warp to form the cloth. The crank shaft is commanded by the dobby to move shafts which control the threads of the warp, said warp coming from a beam or beams with varying forms of leftoif controlled mechanism and a take up mechanism is also actuated to roll the woven fabric. The dobby is actuated directly or indirectly through the main shaft and said dobby operates to open the threads of the warp to form the shed for the passage of the shuttles, which latter result is accomplished by the dobby actuating the heddles in the usual manner.

Heretofore, it has been the common practice in the formation of loops in a fabric to employ wires'which were inserted in the shed and beaten in closely to the cloth, thus forming the loops, and after the loops were firmly woven, the said wires were withdrawn and replaced for the formation of other loops. This process has been found to be slow and therefore costly and has been used in the manufacture of suitable fabrics such for example as Brussels rugs.

Nith my invention, however, the formation of loops is accomplished in a very Sim.- ple, inexpensive and efficient manner and without the use of wires, in accordance with thepresent practice, and in carrying my invention into effect, I employ a combination of patterns controlling the reed or reed frame, retaining the same'for aperiod of its travel for a number of picks to effect the entire weaving and combining of the sections of the warp in which the loops are to be formed and releasing the reed at predetermined intervals to permit of its travel through a predetermined course for a number of picks and to provide beating in closely to the weave with the previous picks retained' The ground warp is taut while the loop warp is loose or under slight tension, only these picks will slide on the ground ends and loop the other section of ends.

In carrying my invention into effect, the reed frame B is pivotally mounted on a stud l and provided with an extension I) adapted to cooperate with a dog E adj ustably mount-- ed on a lever F. The dog E is slotted as at E to, permit of'its adjustment on the lever F, said dog being adapted to be fixed in dif ferent positions of adjustment and controls the size of the loops to be formed, and when adjusted to the extreme left as viewed in the drawing, the largest loops will be formed, while the extreme adjustment to the right will provide for the formation of the smallest loops.

The lever F is commanded by the jack or The lever J is controlled by the dobby,

through a link I, and secured to the leverJ is a block K, the face of which is preferably beveled, and said block is adapted to cooperate with the cam L to regulate the movement of the lever J in one direction, the position of the cam controlling said movement.

The spring M serves to normally apply light tension to the terry warp, said spring being coupled with the rod N, around which the warp passes. The rod N in its different positions will control or maintain the cam L in different positions to compensate for the several positions of said rod. Secured to the free end of the lever J is a belt U which passes over the head of the beam 0, and the free end of the belt is provided with a weight V while weights V are suspended from a belt V which passes over the beam to apply tension orfriction thereto, thus preventing the baclring off of the beam as is the common practice in the art.

The reed B is held in its several positions und r tension of a spring X, the tension of which is transmitted through a bell crank X. The operation of my improved apparatus will be readily understood from the foregoing description, when taken in connection with the accompanying drawing and the fol-lowing statement. The block E is first adjusted inthe manner hereinbefore set out to prod'i re a loop or loops of predetermined size and in the operation of the apparatus, when the lever J is moved into the position shown in Fig. 2 of the drawing and a predetermined portion of the terry warp is taken off the beam, the rod N retains this warp under slight tension in the loop formation, but in the event that all of the warp taken off, has not been utilized in the formation of the loop, the cam L will be rotated on the pivot by the action of the spring M which will operate to move the rod N downwardly, and in this operation, the gap. between the cam L and block K is closed to a proportionate degree, governed by the movement of the cam L. Thus in the next operation of removing the warp from the beam, the lever J will have a lesser movement than the movement first named, and in this way the compensating mechanism will automatically operate to: adjust the proper take off of the terry warp from the beam. It will be understood that if the proper amount of terry warp is intermittently removed from the beam, the cam L will be balanced in a predetermined position, such for example as indicated in Fig. 2. of the drawing, it being apparent that the terry warp is always under slight tension.

in the above described operation, the patterns or cards of the dobby will control the operation of the lever F, the dog E serving to retain the reed through part of its course for a number of picks for the purpose of interweaving and combining the warp Z. At predetermined intervals, the pattern controlling the lever F will permit of the lowering of said lever, and the reed is then free to beat in close to the weave of the previous picks and permit of the formation of the loops Z as hereinbefore described. The slacking of the terry warp controlled by the lever J- as hereinbefore set out will provide sufficient amount of the warp to provide for the formation of the loops.

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent, is:

1. An apparatus of the class described comprising a reed frame, a part extending from said frame, a pivot-ally mounted lever commanded by the dobby of the apparatus, a block adjustably mounted on said lever and provided with a adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed frame to hold the same in predetermined position, and the adjustment of the block on said lever controlling the positions in which the reed frame may be retained.

[an apparatus of the class described comprising a reed frame, a part extending from said frame, a pivotally mounted lever commanded by the dobby of the apparatus, a block adjust-ably mounted on said lever and provided with a projecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed f arms to hold the same in predetermined position, the adjustment of the block on said lever controlling the positions in which the reed frame may be retained, and the position of the reed frame controlling the an'iount of the warp used in the formation of a loop or loops.

3. An apparatus of the class described comprising a reed frame, a part extending from said frame, a pivotally mounted lever commanded by the dobby of the apparatus.

projecting portion lit) a block adjustably mounted on said lever V and provided with a pr jecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed frame to hold the same in predetermined position, the adjustment of the block on said lever controlling the positions in which the reed frame may be retained, and the position of the reed frame controlling the amount of the warp used in the formation of a loop or loops, and means for placing the warp constantly under slight tension.

l. An apparatus of the class described, comprising a reed frame, a part extending from said frame, a pivotally mounted lever commanded by the dobby of the apparatus, a block adjustably mounted on said lever and provided with a projecting portion adapted to coope ate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed fr ne to hold the same in predetermined position, the adjustment of the block on said lever controlling the positions in which the reed frame may be retained and the position of the reed frame controlling the amount of the warp used in the formation of a loop or loops, means for placing the Warp constantly under slight tension, and means co operating with said last named means for ccntrolling the release of the warp from the beam.

An apparatus of the class described comprising a reed frame, a part extending from said frame, a pivotally mounted lever commanded by the dobby of the apparatus, a block adjustably mounted on said lever and provided with a projecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed frame to hold the same in predetermined position, the adjustment of the block on said lever controlling the positions in which the reed frame may be retained, and the position of the reed frame controlling the amount of the warp used in the formation of a loop or loops, means for placing the warp constantly under slight tension, means cooperating with said last named means for controlling the release of the warp from the beam, said last named means involving a cam actuated by said tensional means, a pivoted lever cooperating with the beam, and a block on said lever and movable relatively to said cam.

6. An apparatus of the class described comprising a reed frame, a part extending from said frame, a pivotally mounted lever commanded by the (lobby of the apparatus, a lilOCh' adjustably mounted on said lever and provided with a projecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed frame to hold the same in predetermined position, the adjustment of the block on said lever controlling the positions in which the reed frame may be retained, and the position of the reed frame controlling the amount of the warp used in the formation of a loop or .loops, means for placing the warp constantly under slight tension, means cooperating with said last named means for controlling the release of the warp from the beam, said last named means ll1- volving a cam actuated by said tensional means, a pivoted lever cooperating with the bean), and a block on said lever and movable relatively to said cam, said. last named lever being controlled by ratus. r

7. In an apparatus of the class described comprising a beam, spaced rollers over which the warp from said beam is adapted to pass, tensionally controlled means positioned between said spaced rollers around which the warp passesfor placing the warp constantly under slight tension, and means cooperating with said tensional means for advancing the warp to permit of the formation of a loop or loops.

8. 111 an apparatus of. the class described comprising a beam, spaced rollers over which the warp from said beam is adapted to pass, tensionally controlled means positioned between said spaced rollers around which the warp passes for placing the warp constantly under slight tension, means cooperating with said tensional means for advancing the warp to permit of the formation of a' loop or loops, said last named means comprising a lever commanded by the dobby of the apparatus and in operative connection with the beam, cam actuated by said tensional means, and a block on said lever and adapted to cooperate with said cam.

9. In an apparatus of the class described, comprising abeam, spaced rollers over which the warp from said beam is adapted to pass, tensionally controlled means positioned between said spaced rollers around which the warp passes for placing the warp constantly under slight tension, and means cooperating with said tensionalmeans for advancing the warp to permit of the formation of a loop or loops, said last named means comprising a lever commanded by the dobby of the apparatus, a cam actuated by said tensional means, a block on said lever and adapted to cooperate with said cam, a belt coupled with the end. of said lever and passing around the beam and provided at its end with a weight.

10. An apparatus for forming loops of predetermined size in suitable fabrics corn prising a reed fran'ie, a part extending from said frame, a pivotally mounted lever oomll'lttllClQCl by the dobby of the apparatus, a, block adjustably mounted on said lever and provided with a projecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion be ing adapted to engage said part of the reed frame to hold the same in predetermined position, and the adjustment of the block on the (lobby of the appasaid lever controlling the positions in which the reed frame may be retained, a beam, spaced rollers over which the warp from said beam is adapted to pass, tensionally operated means positioned between said spaced rollers around which the warp passes for placin the warp constantly under slight tension, and means cooperating with said tensional means for advancing the warp to permit oi? the formation of a loop or loops.

11. An apparatus for forming loops of predetermined sizes in suitable fabrics comprising a reed frame, a part extending from said fra ie, a pivotally mounted lever commanded by the dobb-y of the apparatus, a block adjustably mounted on said lever and provided with a projecting portion adapted to cooperate with the part extending from said reed frame, said projecting portion being adapted to engage said part of the reed frame to hold the same in predetermined position, and the adjustment of the block on said lever controlling the positions in which the reed frame may be retained, a beam, spaced rollers over which the warpfrom said beam is adapted to pass, tensionally operated means positioned between said spaced rollers around which the warp passes for placing the warp constantly under slight tension, means cooperating with said tensional means for advancing the warp to permit of the formation of a loop or loops, said last named means comprising a lever commanded by the dobby of the apparatus, a cam actuated by said tensional means, and a block on said lever and adapted to cooperate with said cam.

J OAC'HIM GIARDINO,

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