US115806A - Improvement in let-off mechanisms - Google Patents

Improvement in let-off mechanisms Download PDF

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Publication number
US115806A
US115806A US115806DA US115806A US 115806 A US115806 A US 115806A US 115806D A US115806D A US 115806DA US 115806 A US115806 A US 115806A
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strap
lever
mechanisms
improvement
block
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/06—Warp let-off mechanisms
    • D03D49/08—Warp beam brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed

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  • This invention relates to friction apparatus for the yarn-beams of looms, to regulate the letting off of the yarn 5 and it consists in improving the same, as hereinafter fully described, and subsequently pointed out in the claim.
  • Figure 1 is a side elevation of the lever and connecting apparatus, and a transverse section of the strap; and Fig. 2 is a side elevation of the strap and section of the lever.
  • A is a thin metal strap adapted to spring over the upper half of the yarn-beam, or a friction-collar or disk thereon, to one end of which strap zmhook, B, is connected by a ring, 0, said hook being to connect the strap with the loomframe, or any other fixed support.
  • the other end of said metal strap is connected by a bolt, D, and adjusting thumb-nut, E, with a block, F, fitted on the lever G, so that it can be adjusted toward or from the end.
  • the end of the lever is to be placed under a stud, or any projection from the loom-frame; or it may be engaged with a chain or other device attached to and rising up from the floor.
  • the end of the long arm of the lever is provided with a metal or other attachment, I, having a hole through it vertically for the adjusting-bolt K, and a socket in the upper side for the lower end of the coiled spring L to rest in.
  • the bolt K passes loosely through the said attachment L, and has a hook, M, at the lower end, which engages with a chain, N, attached to the floor, and at the top the said bolt is provided with a thumb-nut, 0, under which is an inverted cup, P, receiving the upper end of the spring L in it.
  • the metal strap A has a leather strap, Q, attached to the inner side by riveting or otherwise, and this strap is covered by a woolen or other cloth, R, ()VGI'liLlfiplllg the edges of the leather and metal straps, and riveted or otherwise secured to the upper side of the metal strap.
  • This leather and cloth lining imparts an elastic quality to the band, which is very serviceable in case the beam or collar thereon has any inequality in the rim, the said lining contracting or expanding to them, as the case may be.
  • the friction may be regulated with great exactness, and the adjustments, except the shii'tingof the block F, may be made while the loom is in operation.
  • the block F is prevented from sliding along the beam. by set-screws T.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Looms (AREA)

Description

GEORGE BAILEY.
lmproyement in Let-Off Mechanisms.
No. 115,806, Patnted3u ne13,1871.
FFICE GEORGE BAILEY, or PUTNAM, oonnnorrou'r.
IMPROVEMENT IN LET-OFF MECHANISMS.
To all whom it may concern:
Be it known that I, GEORGE BAILEY, of Putnam, in the county of Windham and State of Connecticut, have invented a new and Im' proved Let-0d Apparatus; and I do hereby declare that the following is a full, clear, and exact description thereof, which Will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming partof this specification.
This invention relates to friction apparatus for the yarn-beams of looms, to regulate the letting off of the yarn 5 and it consists in improving the same, as hereinafter fully described, and subsequently pointed out in the claim.
Figure 1 is a side elevation of the lever and connecting apparatus, and a transverse section of the strap; and Fig. 2 is a side elevation of the strap and section of the lever.
Similar letters of reference indicate corre spondin g parts.
A is a thin metal strap adapted to spring over the upper half of the yarn-beam, or a friction-collar or disk thereon, to one end of which strap zmhook, B, is connected by a ring, 0, said hook being to connect the strap with the loomframe, or any other fixed support. The other end of said metal strap is connected by a bolt, D, and adjusting thumb-nut, E, with a block, F, fitted on the lever G, so that it can be adjusted toward or from the end. The end of the lever is to be placed under a stud, or any projection from the loom-frame; or it may be engaged with a chain or other device attached to and rising up from the floor. The end of the long arm of the lever is provided with a metal or other attachment, I, having a hole through it vertically for the adjusting-bolt K, and a socket in the upper side for the lower end of the coiled spring L to rest in. The bolt K passes loosely through the said attachment L, and has a hook, M, at the lower end, which engages with a chain, N, attached to the floor, and at the top the said bolt is provided with a thumb-nut, 0, under which is an inverted cup, P, receiving the upper end of the spring L in it. The metal strap A has a leather strap, Q, attached to the inner side by riveting or otherwise, and this strap is covered by a woolen or other cloth, R, ()VGI'liLlfiplllg the edges of the leather and metal straps, and riveted or otherwise secured to the upper side of the metal strap. This leather and cloth lining imparts an elastic quality to the band, which is very serviceable in case the beam or collar thereon has any inequality in the rim, the said lining contracting or expanding to them, as the case may be.
By means of the adjusting-screws and nuts and the sliding block, the friction may be regulated with great exactness, and the adjustments, except the shii'tingof the block F, may be made while the loom is in operation.
The block F is prevented from sliding along the beam. by set-screws T.
Having thus described my invention, 1 claim as new and desire to secure by Letters Patcut- 1. The strap A Q R, ring O, hook B, screwbolt D, and nut E, combined with block F of the lever G, as and for the purpose specified.
2. The friction mechanism A Q, R B O D E, the lever G, having hook H at one end and socket-piece I at the other, and the spring mechanism K L M N O P, when said instrumentalities are constructed and arranged together, substantially as and for the purpose specified.
GEORGE BAILEY.
Witnesses:
GEORGE T. CLARK, WILLIAM SEATON.
US115806D Improvement in let-off mechanisms Expired - Lifetime US115806A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460247A (en) * 1944-07-15 1949-01-25 Singer Mfg Co Sewing-machine clutch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460247A (en) * 1944-07-15 1949-01-25 Singer Mfg Co Sewing-machine clutch

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