US3147777A - Equipment for weaver's shuttle - Google Patents

Description

P 3, 1964 H. T. SIMMONS 3,147,777 EQUIPMENT FOR WEAVERS SHUTTLE Filed May 211? 1962 40 -42 4 FIG. 5 INVENTOR.

HENRY T SIMMONS ATTORNEY United States Patent 3,147,777 EQUKPMENT FUR WEAVERS SHUTTLE Henry '1. Simmons, 167 E. Genesee Sn, Shaneateles, N31. Filed May 21, 1962, Ser. No. 196,141 3 Claims. ((Cl. 139198) This invention relates to weaving apparatus, and more particularly to a cop bobbin and a cop; holder. for a weavers shuttle.

It has been a general practice to provide a Weavers shuttle with a grooved cavity in which a cop of yarn is inserted so that the turns of yarn of the cop fit into the grooves of the shuttle cavity; and to unwind the yarn from the inside of the cop at the rear thereof. The yarn then traveled through an eye formed in the shuttle. The inside rear of this cop is somewhat cone-shaped, so that the yarn being unwound therefrom causes the cone to collapse and several turns of the yarn to form a knot, resulting in a condition known as slugging when the knot reaches the eye of the shuttle and is stopped thereby, thus breaking the yarn. slugging is also caused by the looseness of the cop itself as it rides in the cavity of the shuttle. The cop is retained in the cavity by the attaching of the bobbin plug therein and, as the picker stick of the loom strikes the shuttle in a hammer-like blow to send the shuttle across the loom, the impact of the blow causes the cop to break up and lie loosely in the cavity, it being understood that this cop is a ball of yarn. Slugging causes much waste of yarn and time, and especially so since the weaver must remove the damaged cop and replace it with a new one.

My Patent 2,914,095 for a Cop Bobbin and Cop Holder for a Weavers Shuttle disclosed a meansfor unwinding the yarn from the outside front of the cop bobbin rather than the inside rear as is conventionally done. Another patent application, Serial No. 854,670, now US. Patent No. 3,037,530 providesa means for constant and adjustable tensioning of the yarn as it is unwound from the cop and means for quickly engaging and disengaging the cop grip holder in the shuttle.

It is a main object of the present invention to provide a new and improved means for constant and adjustable tensioning of the yarn as it is unwound from the cop and to prevent snagging of the yarn or uncontrolled movement of the cop and bobbin in the shuttle.

It is another object of the present invention to provide an improved cop bobbin which will completely eliminate yarn waste and which will not require immediate removal of the bobbin when the yarn has been used, as well as providing means by which the succeeding bobbin can be attached to the bobbin in use by tying the end of the first yarn to the beginning of the second yarn without tangling the yarns.

Another important object of the present invention is to provide a mean by which the cop grip holder holds the cop and bobbin against uncontrolled movement while allowing the free removal of yarn therefrom.

As a result of its novel construction, this invention provides a better control of the yarn out of the shuttle and eliminates the process of rethreading the eye of the shuttle with each bobbin change.

The cop grip holder of the present invention has a tension control for the yarn of the bobbin which equalizes the tension on the yarn on the cop bobbin as the shuttle moves at high speed in the loom.

The present invention also provides an improved means for feeding yarn into a shuttle in a weaving machine which can be used in present weaving machinery throughout the world. The switch from the conventional cop bobbins and bobbin holders now in use to this novel and improved type could be easily made with no other adjustments to the weaving machine.

Therefore, in accordance with the present invention, a Weavers shuttle is provided comprising a bobbin cavity, and means for retaining the cop grip holder in the shuttle. The Weavers shuttle is also provided with an eye in the front portion thereof, which guides the yarn as it is unwound from the outside front of the cop which is located in the cop grip holder. This cop grip holder has a cover hingedly fastened thereto which closes to secure the cop bobbin with the yarn thereon. A sliding tray rests in the cop grip holder and the bobbin rides in this tray, the tray being so positioned and constructed that as the yarn unwinds, the tray moves to maintain a constant pressure against the cover and therefore to hold the bobbin with the yarn thereon securely in the cop grip holder. When the cop has been woven out to a desired length of yarn, it is placed forward into the holder and a new cop is placed on the tray. The bobbin, as provided in the present invention, is novelly constructed to be split therethrough so that the bobbin may be removed from the yarn which is tied on to the next spool without breaking the yarn.

Objects of my invention and the invention itself will be understood by reference to the drawing and to the following description of the features and construction involved in my improved method and of apparatus used therein, with reference to the accompanying drawings in which:

FIGURE 1 is an isometric view of a sliding tray used in the cop grip holder of the present invention.

FIGURE 2 is an isometric view of a cop grip holder insert showing the position in which the sliding tray of FIGURE 1 is placed.

FIGURE 3 is a side view of the novel cop bobbin of the present invention.

FIGURE 4 is a front view of the novel cop bobbin of the present invention.

FIGURE 5 is a top view of a shuttle with a cop grip holder in accordance with the present invention positioned therein.

Therefore, in reference to FIGURE 5 of the drawings, a shuttle 40, conventionally provided with metal ends 41, is provided with an insert cop grip holder 24. A sliding tray 14 is set in said cop grip holder 24 and is held by springs 19 away from a stopping means 27.

A cop bobbin 30, as seen in FIGURE 3, and provided with groove 32 thereon, is wound with yarn and is placed in sliding tray 14. The yarn unwinds from the front of the bobbin and under spring means 23 through tension control 43 and out shuttle eye 42.

It is seen, with reference to FIGURES 1 and 2 that sliding tray 14 is provided with elevated slides 15 and 18 and that cop grip holder 24 is similarly provided with slides 25 and 38 angled so as to further elevate the sliding tray. The springs 19 at the ends of the tray 14 are abutted by stopping means 27. Support bars 16 and 17 are so disposed as to provide support for sliding tray 14, and held by spring holders 28.

A cover 20 is provided to cop grip holder 24 and is hingedly fastened thereto with hinge 44 and is attached by means of conventional fastening means 21 which attach through holes 50 in shuttle 40. In order to fasten the cover, an amount of pressure is exerted on the cover to depress lever 23 by springs 29 and locking means 21 is secured to hold the cover 20 thereon. These locking means are of a conventional nature, and while it is recognized that several varied means are useable for looking the cover, no further discussion will be given to this matter here.

The plug bobbin, as disclosed in my previous applications, is further modified as seen in FIGURES 3 and 4 so that when the yarn has been unwound from the bobbin, the yarn is continuously extended through the bobbin on to the next cop and the emptied bobbin can be simply slipped off the yarn without necessitating the breaking of the yarn which has already been run off preceding cop. The bobbin 30 of the drawing is grooved and is of the plug-bobbin type so that the yarn is unwound from the front thereof. An interior hole 31 is provided in the bobbin 30 and extends from the front end thereof through the rear end thereof and it is clear that by this peculiar construction the bobbin may be simply slipped off where the yarn has been all used.

In the cop grip holder 24 of the present invention, as the cop, or yarn Wound on the cop bobbin, sets in the tray and the cover 20 is put down ready to weave and the holder being positioned in the shuttle, the shuttle is now ready to weave. Each impact of the shuttle into the shuttle box brings the tray 14 forward and up so that the bobbin presses against the cover. In this way the tray holds the bobbin against forward movement and the empty bobbin which is forward of the tray is kept from catching against the bobbin which is being used in the weaving process.

It is therefore seen that the ramp or tray 14 rides with force in the cop grip holder and goes just as far as the cop wound on the bobbin will let it against the cover. It is also seen that ball bearings could be used rather than springs as controlling means for the tray.

It has been noted that the cop grip holder and the parts therein, such as the tray, can be made of any material such as a lightweight metal. The cover, tray and other parts could be perforated to further reduce weight. The shuttle is conventionally made of a hard Wood, such as sycamore or dogwood and no need is visualized or contemplated to vary the conventional practice with the use of the present invention. In fact, it is forseen that the present invention could be adapted for use in present machinery with a minimum of adjustment and would provide an improved and accelerated method of feeding yarn in the weaving process.

It is to be understood that the above particular description is by way of illustration, and that change, omissions, additions, substitutions and modifications might be made within the scope of the invention without departing from the spirit of the invention which is intended to be limited only as required by prior art.

I claim:

1. A cop grip holder in combination with a weavers shuttle having a substantially rectangular body with a cover hingedly attached thereto, a semi-tubular tray setting in said body, triangular slides mounted on the bottom of said tray, triangular slides mounted in said body correspondingly to said slides on the bottom of said tray, said tray having suspended spring mounting means in said body, said tray receiving an inserted cop bobbin having yarn wound thereon, and aforesaid tray riding with force against said cover as yarn is unwound from the said bobbin and through an eye in a weavers shuttle said bobbin being unwound to end of yarn and moved forward to allow another bobbin to ride in the tray.

2. A cop grip holder for use in a weavers shuttle comprising a substantially rectangular body having a cover hingedly attached thereto, a semi-tubular tray being loosely mounted in said holder and having triangular feet mounted thereon, said rectangular body having triangular slides corresponding to said triangular feet, said tray being elevated by said slides and feet and said tray being mounted by springs to ride in said cop holder, a cop bobbin With yarn wound thereon riding in said tray and said tray being forced against aforesaid cover by the unwinding of said cop bobbin in the weaving operation.

3. A cop grip holder for a weavers shuttle for receiving a cop bobbin having a cop of yarn thereon, comprising in combination, a rectangular cavity having a cover hingedly attached thereto, a semi-tubular means for receiving a cop bobbin wound with yarn, said means being contained within said cop bobbin, said means being footed with triangular slides, said cop gripper holder having triangular slides contained in the bottom thereof, said second triangular slides corresponding to aforesaid first triangular slides on said semi-tubular means, said semitubular means being mounted by spring means and elevated by aforesaid triangular slides to be moved forward and lifted upward by each impact of the weavers shuttle in the weaving operation, thus causing said cop bobbin to press against said cover and to hold against forward movement in the cop grip holder at instant of impact.

References Cited in the file of this patent UNITED STATES PATENTS 537,046 Kynett Apr. 9, 1895 650,562 Millward May 29, 1900 957,825 Walsh May 10, 1910 2,860,843 Van Katwijk Nov. 18, 1958

Claims (1)

1. A COP GRIP HOLDER IN COMBINATION WITH A WEAVER''S SHUTTLE HAVING A SUBSTANTIALLY RECTANGULAR BODY WITH A COVER HINGEDLY ATTACHED THERETO, A SEMI-TUBULAR TRAY SETTING IN SAID BODY, TRIANGULAR SLIDES MOUNTED ON THE BOTTOM OF SAID TRAY, TRIANGULAR SLIDES MOUNTED IN SAID BODY CORRESPONDINGLY TO SAID SLIDES ON THE BOTTOM OF SAID TRAY, SAID TRAY HAVING SUSPENDED SPRING MOUNTING MEANS IN SAID BODY, SAID TRAY RECEIVING AN INSERTED COP BOBBIN HAVING YARN WOUND THEREON, AND AFORESAID TRAY RIDING WITH FORCE AGAINST SAID COVER AS YARN IS UNWOUND FROM THE SAID BOBBIN AND THROUGH AN EYE IN A WEAVER''S SHUTTLE SAID BOBBIN BEING UNWOUND TO END OF YARN AND MOVED FORWARD TO ALLOW ANOTHER BOBBIN TO RIDE IN THE TRAY.

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