US2381042A - Shuttle - Google Patents

Description

Patented Aug. 7,1-945 UNITED STATES PATENT .OFFICE l v 2,381,042 v l sim'rfrm A John Kyle Dudley, Philadelphia, Pa. I Application November 20, 1943, Serial No. 511,135

s claims. (ci. 13e-199) l vThis invention relates to shuttles for use in `looms adapted for weaving tapes, webbings, ribbons or other narrow textile fabrics.

The presentinvention is applicable to narrow fabric loom shuttles of either the fly type or the rack and pinion type; and to shuttles adapted to travel inV either 'rectilinear paths or in arcuate paths, as determined by the guideways formed on the shuttle blocks'of the loom.

One object of'the'present invention is to provide a shuttle which will be capable of carrylnga large-capacity bobbin, and particularly a bobbin of the single-headed type, which can be wound on a conventional automatic winding machine, -whereby stoppages of the loom for replenishing of the filling thread supply in the shuttle will be reduced to a minimum, and whereby the cost of winding bobbins for use in the shuttles of narrow fabric looms will be considerably reduced, as Compared with the cost .of` winding bobbins for the shuttles of narrow fabric looms under cur- Other objects and advantages of the present invention will become apparent through the following description and by reference to the accompanying drawing of which:

Fig. 1 is a front elevation of a shuttle constructed and equipped in accordance with the present invention;

Fig. 2 is a plan viewy of the shuttle shown in Fig. 1 with the upper bow spring removed;

Fig. 3 is a longitudinal sectional elevatio'n taken groove 3, for reception of aligned tongues of contiguous upper guide blocks of the loom. The under side of the base 2 is provided with a guide groove 4 for reception of the tongues of lower guide blocks and which, in the case of the rack in closer toward the vertical center of the guide or track in which the shuttle reciprocates, to reduce the friction and wear of and between the shuttle andguide which normally results from the leverage and-weight of that portion of the shuttle and its load which overhangs the face of the shuttle blocks, and whereby the speed of the loom may be increased with a consequent increase in the hourly production of the loom.

Another object ofthe-invention is to replace the low-capacity rotating bobbin, and its complementary brake spring, from which the lliig thread is drawn tangentially, lby the aforesaid large-capacity non-rotating single-headed bobbin from which the filling thread may be drawn and pinion shuttles, is also provided with gear Y teeth 5 for engagement with the driving pinions of the loom, by which the shuttle is reciprocated in an arcuate or rectilinear path, as the case may be, through the open warp shed of the fabric being woven.

At its opposite ends, integral with and projecting outwardly from the base 2 of the shuttle I, are end parts or pillars 6 and 'I respectively. The outer ends of the end pillars .6 and 1 are connected by a bridge member 9, said base, said end piliarsfand end bridge member collectively defining a'substantially'rectangular opening Ill in the body of the shuttle. and in which a singleheaded bobbin II is adapted tobe supported.

The bobbin Il includes a single circular end flange I2, and an integral axial quill I3, on which ycircular headilange I2 of the bobbin :snugly lit'- ting into a 'U-shaped undercut groove I4 formed in the pillar 6 at the one end of the shuttle.

The pillar 6 is also provided with a complementary straightaway groove 'I5,' in which is viiiourite'ri a at arched spring I6. The `spring I6 is secured at one of its ends inthe groove I5 by a screw or other Afastening means I1, and is adapted to frictionally engage the .K outer end surface of the singlehead-I2 of the bobbin Il.

In axial alignment with the bobbin quill I3, the

vpillar 1 isprovided with a guide eye I8 which is set in an vinternal groove or recess I9 formed on the inner face 20 of the pillar 1, whereby the outer end of the guide I8 does not project into the recess I of the shuttle beyond the inner face 20 of the pillar 1, thus providing alarger unobstructed recess ,III for the reception ofthe largecapacity bobbin II. l i

' 'Ihe filling thread xl, as shownin Figs. 2 and 3 is drawn from the thread supply :r2 axially of the bobbin II over the headless end thereof through the guide eye I8 in the pillar 1, from which the thread :cI is rovedthrough a series of porcelain or other wear-resisting eyes or Y bushings 22, carried in suitable openings formed in the bridge 9, to effect a snubbing action of variable intensity depending upon the number of bends placed in the thread :cl between the eye lI8 and the bushing 22 through which the thread is drawn before .it leaves the shuttle in the course of weaving.

In order to insure easy slipping of the shuttle between the threadsV of the open warp shed, the opposite ends of the base 2 and the outside ends of pillars 6 and 1 are tapered to a substantially sharp edge 23. Bow springs. 24, 24 are also provided adjacent the opposite sides respectively of the base 2 with their opposite ends anchored in the pillars 6 and 1 respectively.

The U-shaped anchoraged groove I4 for the bobbin Il is formed in the sides and bottom wall of a similarly U-shaped recess 25 with the side and bottom walls, intermediate the U-shaped groove I4 and the end wall 26 of the bobbin recess I0, beveled, as indicated atl 21 to receive the frusto-conical end r3 of the body a: of the filling thread which lies immediately adjacent the single head or flange I2 of the bobbin Il.

` The groove I5'in which the anchorage spring I6 is mounted is formed in the base surface 28 of the recess 25 "straight across the width of the pillar 6.

By reason of the above construction and the construction of the pillar 1 with the guide eye I8 located in vthe recess I9 gouged out of the inner surface of the pillar 1, a bobbin of maximum length and diameter may be used in the recess I0 in the body of the shuttle.

The recess and groove I4 are open fulll width at their tops to permit the head I2 and adjacent end :v3 of the bobbin II to be moved readily into and,out of the shuttle.

l. A narrow fabric loom 'shuttle :having a bobbin-receiving recess formed betweentransverse end walls spaced apart longitudinally of\ the shuttle, one of said end walls having a cornplementary recess formed thereinigr receiving a disc-like head on one end of the bobbin, and a relatively thin-edged rib-like projection on said wall ina transverse plane intermediate s'aid recesses and adapted to engage one face of said assi-,04a

3. A1 narrow fabric loom shuttle having a bobbin-receiving recess formed between transverse end walls spaced apart longitudinally of the shuttle, one of said end walls having a complementary recess formed therein for receiving a disc-like head on one end of the bobbin, and A a relatively thin-edged rib-like projection on said wall in a transverse plane intermediate said recesses and. provided with an inwardly tapering edge adapted to engage one face of said head between said face and an adjacent end faceof a body of thread wound on said bobbin.

4. A narrow fabric loom shuttle having a bobbin-receiving recess formed between transverse end walls spaced apart longitudinally of the shuttle, one of said end walls having a complementary recess formed therein for receiving a disc-like head on one end of the bobbin, a relatively thin-edged substantially U-shaped rib-like projection on said wall in a transverse plane intermediate said recesses and adapted '.to engage one face of said head between said face and an adjacent end face of a body of thread wound on said bobbin, and resilient means adapted to engage the opposite face of said head to force the first said face thereof into firm contact with said projection. l

5. A narrow fabric loom shuttle having a bobbin-receiving recess-formed between transverse end Walls spaced apart longitudinally of the shuttle, one of said end walls having 'a complementary recess formed therein for receiving a disc-like head on one end of the bobbin, a relatively thin-edged substantially U-shaped rib-like projection on said wall in a transverse plane intermediate said recesses and adapted to engage one face of said head between saidrface and an adjacent end face of a body of thread Wound on said bobbin, and a flat bow spring seated in the base of said complementary recess and engageable withythe opposite face of said head to force the first said face thereof into firm contact with said projection.

'6. A narrow fabric loom shuttle having a bob-` bin-receiving recess formed between transverse end walls spaced -apart longitudinally of the head between saidface and an adjacent end face of a body of thread wound on said bobbin.

2. A narrow fabric loorn shuttle having 'a bobbin-receiving recess formed between trans-y verse end walls spaced apart longitudinally' of the shuttle, one of said end walls having a complementary recess formed therein for receiving ya disc-like head on one end of the bobbin, andI a relativelythin-edged substantially -U-shaped rib-like projection on said wall in artransverse plane intermediate said recesses and adapted to engage one face of said headbetween said face' and anadjacent end face of a body'of thread wound-on said bobbin.

shuttle, one of said end walls having a complementary recess formed therein for receiving a` disc-hkehead on one end of the bobbin, a relatively thin-edged substantially U-shapd rib-likev projection on said wall in a transverse plane intermediate said recesses and adapted to engage one face of saidhead between said face and an adjacent end face of a body of thread wound on said bobbin, and a flat bow spring seated in a groove formed inthe base of said complementary recess and engageable with the opposite face of said head to force the first said face thereof into firm contact with said projection.

7. A lnarrow fabric loom shuttle having a bobbin-receiving recess formed between transverse en d walls spaced apart Ilongitudinally of the shuttle, one of said en'd walls having a complementary recess with a groove formed in the side walls thereof in a plane substantially parallel to said one endv wall to receive the peripheral-` edge of a disc-like head on o ne end of the bobbin, saidy recessed end wall being beveled inwardly toward said groove around the marginal edges of said complementary recess to engage one face of the head of the bobbin between said head and a body of thread wound thereon.

8. A narrow fabric loom shuttle having a bobbin-receiving recess formed between'transverse complementary recess to engage one face of the head of the bobbin between said head and a body of thread Wound thereon, said complementary recess having a rectilinear groove formed in its base, and a flat bow spring seated in said rectilinear groove to bear against the face of said head lying adjacent said base.

JOHN KYLE DUDLEY.

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