US1161364A - Warp-beam motion for looms. - Google Patents

Description

C. VAN DEN HANDEL.

WARP BEAM monow FOR L'OOMS.

APPLICATION FILED AUG.5. 1914.

Patented Nov. 23, 1915.

2 SHEETS-SHEET l.

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WITNESSES.-

J\ BY iKi/z/g ATTORNEY.

\iOLl/MBIA PLANDGRAPN CO" WASHINGTON. D- C.

C. VAN DEN HANDEL.

WARP BEAM MOTION FOR LOOMS.

APPLICATION FILED AUG.5, 1914.

1 ,1 61,36%. Patented Nov. 23, 1915.

2 SHEETSSHEET 2.

WITNESSES- )NVEN TOR.

By M

ATTORNEY.

COLUMBIA PLANOURAPH c0. WASHINGTON, D. c.

tirvirnn e ra rrie rairrinr entree.

CORNELIUS VAN DEN HANDEL, OF PASSAIC, NEW JERSEY, ASSIGNOR OF ONE-THIRD T0 JOHN F. KERR, OF PATERSON, NEW JERSEY.

WARP-BEAM MOTION FOR LOOMS.

mer er Specification of Letters Patent.

Patented Nov. 23, 1915.

Application filed August 5, 1914.. Serial N 0. 855,292.

To all whom it may concern:

Be it known that I, Coluvnnrus VAN/DEN HANDEL, citizen of the United States, residing at 324 Montgomery street, in the city of Passaic, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Warp-Beam Motion for Looms, of which the following is a specification, reference beinghad therein to the accompanying drawing.

My invention relates to improvements in looms for weaving silk or other fabrics, and the objects of my invention are first, to avoid the necessity of employing weights suspended on ropes which are wound around the end of the warp-beam for the purpose of regulating motion thereof; second, to provide a uniform and adjustable resistance to the feed of the warp; and third to provide an adjustable take-up motion therefor. These objects are attained by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a view of a portion of the rear end of a loom showing the improve ments attached thereto; Fig. 2 is a side elevation and partial section of Fig. 1; Figs. 3 and 4 are detailed views of the brake attached to, or in operative position on the flanged beamhead or wheel on the end of the warp-beam; Figs. 5 and 6 are detailed views of the brake-shoe; Figs. 7 and 8 are detailed views of the brake-arm; Fig. 9 is a sectional view of the take-up device along its axis; Fig. 10 is a section on the line 1-2 of Fig. 9; Fig. 11 is a top view of the drum or rotating wheel which contains the spiral take-up spring; Fig. 12 is a front view of the supporting bracket, and Fig. 13 is a side view of the same bracket.

Similar letters refer to similar parts throughout the several views.

The supply of warp W is wound upon the beam G and passes over the roller I to the harness and reeds in the usual manner. The flanged head or wheel D'is firmly fixed to the end of the warp-beam Gr and to the shaft 1 so that all rotate in unison. The shaft P rotates in the hole hof the brake-arm B and in the opening r of the bracket C; the arm B is supported in the bracket C by the lug cl. The rounded por-' tion z, of the lug (Z on the brakearm B turns inside of the partially circular flange R, which forms a bearing therefor in the upper part of the bracket 0. The ends -0 and f of the flange R form stops to limit the upward and downward movement respectively of the brakearm- As the outer end of the brake-arm B ascends the upper edge of the projecting lug 0l engages the projecting end -0 of the flange R, and as it descends the lower edge of the projecting lug cl engages the other projecting end f of the flange R, thus limiting the swing of the outer end of the brake-arm B when ascending or descending. On the lower edge of the-brake-arm B, near its outer extremity, is located an eye or loop 0 to which'means is adapted to be secured for the purpose of drawing the outer end of the brake-arm B downwardly. A rope, cord, chain -79 or the like, of any suitable material may be secured to the loop or eye 0, and means adapted to automatically wind up the cord -]9 and draw downwardly the outer end of the brake-arm B, whenthe drag on the warp is released, is mounted in the loomframe below the flanged wheel D which is secured to the end of the warp-beam G.

The leather brake-shoeA is provided with a metal loop c-- which fits over the bar Z of the brake-arm B and with a projecting metal lug -a-, which is bored for the bolt J which carries torsional spring K. The bolt J also passes through the projection 'w of the arm B, said projection acting as a hold-back to the nut V. The shaft m is secured to the slot --gof the bracket C and carries the disk Z which is firmly fixed against turning. The wheel L rotates on the shaft m and incloses the spiral spring M which is fixed at the one end to the disk Z and at the other end to the hub of the wheel L. One end of the cord p is attached to the rim of the wheel L and the other end is fixed to the lug 0 of the brake-arm B.

My invention may be attached to any broad-silk loom or to any loom for weaving cotton or woolen goods with but a slight change in the form of the bracket which is secured to the loom-frame. It is a compact device and adds to the appearance of the loom and does away with the unsightly and unwieldly rope and Weights.

The operation of my device is as-follows: As the warp l/V unwinds from the beam G it causes the beam to rotate in the direction of the arrow 3, as shown in Fig. 2. The resistance offered by the leather-shoe A,which is forced against the face of the wheel or i flanged head D by the torsion of the spring K, causes the brake-arm B to turn with the wheel D and roller G for about one-fourth of a revolution, or until, the lug cZ engages the projecting end c of the flange R on the upper end of the bracket C. The brake-arm B will then be approximately in its normal position, occupied during the op eration of weaving, as shown in Fig. 2. The brake-arm B and the brake-shoe A which is securedthereto then cease to rotate with the flanged wheel D, which is secured to the warp-beam G; but the drag of the warp-threads cause the warp-beam G and the flanged wheel D to continue rotation while in frictional contact with the brakeshoe A, thus controlling the tension and the delivery of the warp-threads from the warpbeam. During the forward motion of the arm B the cord p causes the wheel L to rotate in a direction contrary to the arrow 4: as shown in Fig. 2, increasing the tension in the spiral spring M.v Any further motion of the wheel D in the direction of the arrow 3 must overcome the resistance of the brake-shoe A, which resistance can be regulated by increasing or decreasing the pressure of the spring K by means of the bolt J. Should the tension of the warp W slacken the spring M will cause the wheel L to rotate in the direction of the arrow 4 (see i the warp W.

Fig. 2), winding the cord p and drawing the arm B downward, causing the wheel D to turn against the direction of the arrow 3 (see Fig. 2) rewinding the slack of The downward movement of the outer end of the brake-arm B will proceed until the lower edge of the lug -cZ strikes the projecting end f of the partially circular flange R, when the downward movement of the outer end of the brakearm B will be arrested and stopped. This is the situation when the weaver at the front of the loom lets back the warp, thereby slackening the tension of the same for any desired purpose and for any desired distance. When the weaver has adjusted irreg ularities and takes up the warp, the drag on the warp will rotate the warp-beam and brake-arm B and raise the outer end of the brake-arm B again until it is approximately in the position shown in Fig. 2. The tension of the wheel L may be regulated by putting any initial tension in the spring M previous to attaching the cord p.

With this description of my invention what I claim as new and desire to secure by Letters-Patent, is

1. The combination with the warp-beam, shaft and fixed flanged head which rotate in unison, of a brake-arm having pivotal movement on said shaft, a brake-shoe adjustably connected to the extremities of the brake-arm and tending to rotate with the beam, means to regulate the friction of the shoe on the face of the flanged head, and means to limit the rotation of the arm.

2. In a loom, the combination with the warp-beam, shaft and fixed flanged head which rotate in unison, of a brake-arm pivotally mounted on said shaft, a brake-shoe adjustably connected to the extremities of the brake-arm and tending to rotate with the beam in either direction, means to regulate the friction of the shoe on the face of the flanged head, and means to limit the rotation of the brake-arm and shoe in either direction.

3. In a loom, the combination with the warp-beam, brake'shoe and brake-arm pivotally mounted on the beam-shaft, of means for automatically causing the warp-beam to rotate in one direction when the drag on the warp is released, and permitting the beam to rotate in the opposite direction when the drag on the warp is resumed, and means located on the brake-arm to limit the swing of the brake-arm.

4:. In a loom, the combination of a warpbeam having a shaft and a fixed flanged head with a brake-arm pivotally mounted on said shaft, a brake-shoe adjustably secured to said brake-arm, means to regulate the friction of the shoe on the face of the flanged head, means to cause the brake-arm and brake-shoe to rotate with the beam when the drag on the warp is released, means to limit the rotation of the brake-arm and shoe, a cord, or the like, attached to the end of the brake-arm and means to which the other end of said cord is attached for automatically taking up said cord and causing the brake-arm and shoe and beam to rotate in one direction, when the drag on the warp is released and for letting off said cord when the drag on the warp is resumed, and permitting the brake-arm and shoe and beam to rotate in the opposite direction.

5. In a loom, the combination with the warp-beam, brake-shoe, and brake-arm pivotally mounted on the beam-shaft, of a spring operated rotatable drum having an operative connections between the latter and 10 initial tension adapted to be automatically the brake.

augmented by the normal operation of the In testimony whereof I afiix my signature loom and operative connections between the in presence of two witnesses.

brake-arm and the drum.

6. In a loom, the combination with the CORNELIUS VAN DEN HANDEL' warp-beam, of a brake device therefor piv- WVitnesses: otally mounted on the beam-shaft, a spring JOHN F. KERR, operated take-up and let0fi' mechanism, and BESSIE BERLINER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G."

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