US1129810A - Warp stop-motion for looms. - Google Patents

Description

D. OSGOOD.

WARP STOP MOTION FOR LOOMS.

APPLICATION FILED r3315, 191a.

Patented Feb. 23

I771) 67-11707? :Danq, OSj 004:2

THE NORRIS PETERS 60., PHOTC-LITHQ. WASHINGTON. L1v C.

DANA OSGOOD, 0F I-IOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

WAR-P STOP-MOTION FOR LOOMS.

Specification of Letters Patent.

Patented Feb. 23, 1915.

T all whom it may concern:

Be it known that I, DANA OSGOOD, of Hopedale, Worcester county, Massachusetts, have invented a new and Improved Warp Stop-Motion for Looms, of which the following is a specification.

The improvements are illustrated in the accompanying drawings, which show a vertical cross-section of so much of a loom as is necessary to enable the invention to be understood.

In the drawings, A, A, are thin sheet metal. drop-bars or detectors, each having a longitudinal slot at; B, B, are two sheet metal lease rods, each having inturned separated beads b, b, underneath with a gap between them, so that each lease rod has a longitudinally extending groove or recess on its underside; G, G, are guide bars, one for each bank of detectors, each guide bar extending through the slots a, of the detectors of one bank; D, and E, are the two sheds of Warp threads divided into intersecting planes by the lease rods; and F, is an arrow indicating the direction of feed of the warp threads in the loom. Each warp thread passes through the slot of one of the detectors, and normally supports that detector which is thus suspended. There are as many detectors in both banks as there are warp threads in the loom. The detectors are suspended from the bottom sheds.

Each guide C, is directly beneath one of the lease rods B, so that the upper ends of the detectors in one bank extend within the recess on the under side of the correspond ing lease rod. Hence it is impossible for the detectors of one bank to come into contact with the warp threads from which the other bank of detectors is suspended, thereby avoiding chafing of the threads of one shed by the detectors belonging to the other shed. The head of each detector is normally well below the under face of the top of the lease rod above it, and the recess is wider than the detector, so that the detector is not in contact with the lease rod.

Each detector is free to move vertically both up and down and laterally both ways, so that the detectors accommodate themselves to the threads and the strains thereon.

In case a warp thread breaks its detector drops, being guided by its guide bar 0, and is suspended in its dropped abnormal position by said guide bar. A detector in its dropped or abnormal position efl'ects the stoppage of the loom through any of the well-known cooperating devices which may be electrical or mechanical, for example, in accordance with the known teachings of the art.

I claim 1. A warp stop motion for looms comprismg, in combination, sheet metal lease rods, each with a longitudinally extending recess on its underside, said rods dividing the warp threads into intersecting planes; a guide below each lease rod; and a bank of slotted thin sheet metal drop-bars or detectors for each lease rod, the guide below each rod extending through the slots of all the detectors of one bank, and each detector being suspended from a warp thread with its head located within the recess of a lease rod, but out of contact therewith.

2. A warp stop motion for looms, comprising, in combination, lease rods, each recessed on its under side; a bank of detectors for each lease rod, each detector being suspended from a warp thread beneath a lease rod and with its head within the recess of the lease rod, but out of contact with the lease rod; and means for guiding the detectors.

3. A warp stop motion for looms comprising, in combination, leasing means to dispose the warp threads into intersecting planes, and a bank of detectors for each means, each detector being suspended vertically from a single thread under one of the leasing means and out of contact with all of the leasing means.

4. A warp stop motion for looms comprising, in combination, means to dispose the warp threads into intersecting planes consisting of a leasing instrumentality forming the upper half of each lease and two separated instrumentalities forming the lower half of each lease, and a bank of detectors for each plane of warp threads, each detector being suspended vertically from a single thread under and out of contact with the leasing instrumentality forming the upper half of each lease, and between the two leasing instrumentalities forming the lower half of each lease.

5. A Warp stop motion for looms having, in combination,a rod dividing the warpcessed on its under side; a bank of detectors for each lease rod, each detector being sus- 10 pended from a Warp thread beneath a lease rod, but out of contact With the lease rod; and means for guiding the detectors.

In wltness whereof, I have hereunto signed my name in the presence of two subscribing Witnesses.

DANA OSGOOD.

Witnesses FRANK J. DUTGHER, J. L. REMINGTON, Jr.

flopieaiof this patent may be obtained for five cents each, by addressing the Commissioner of Iatents.

Washington, D. G.

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