US691533A - Warp stop-motion for looms. - Google Patents

Description

No. 69!,533. Patented Ian. 2|, I902.

J. ,V. & E.'OUNNIFF.

WARP STOP MOTION FOR LOOMS.

' (Application filed Oct. 28, 1901. (No Model.) 2 Sheets-Sheet I.

Fig. I

\XZILIZNEEEES. I O %%IM%Z%%INVENTU E No. 69I,533. v Patented Ian. 2|, I902. J. V. 8. E. CUNNIFF. WARP STOP mono" FDR Looms.

(Application filed Oct. 28, 1901.;

(No Model.) 2 Sheets-Sheet 2.

UNITED STATES PATENT ()FFICE.

JOHN VINCENT CUNNIFF AND EDlVARD CUNNIFF, OF NE\V BEDFORD, MASSACHUSETTS, ASSIGNORS TO AMERICAN MECHANICAL WARP STOP COMPANY, OF PAIVTUCKET, RHODE ISLAND, A CORPORATION OF RIIODE ISLAND.

WARP STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 691,533, dated January 21, 1902. Application filed October 28,1901. Serial No. 80,184. No model- To all whom it may concern:

Be it known that we, JOHN VINCENT CUN- NIFF and EDWARD OUNNIEF, citizens of the United States, residingin New Bedford, in the county of Bristol and State of Massachusetts, have invented anew and useful Improvement in Warp Stop-Motions for Looms, of which the following is a specification.

This invention or improvement has for its principal objects to utilize a sensitive deflector; to provide a detector which constitutes the direct connection between the feeler or oscillator and the shipper-release without bringing into action any other connection; to provide a stop-motion which can be applied to any make of loom, which will require no extra attention from the section-hand, and which can be adjusted by any ordinary loomfixer; to provide a stop-motion which will increase production by reason of its utilizing a light detector, (twelve grains,) thus reducing the strain on the yarn; to prevent the action of the stop from being affected by the collection of lint, and to provide a stop-motion which will combine simplicity with strength and efficiency of operation.

The nature of the invention is fully described indetail below and illustrated in the accompanying drawings, in which- Figure 1 is a view, partly in cross-section and partly in elevation, showing enough of the loom to illustrate our invention. Fig. 2 is an enlarged detail in cross-section of our improvement. Fig. 3 is a similar detail in front elevation. Fig. at is an enlarged sectional view illustrating the shipping mechanism. Fig. 5 is a rear view of the same. Fig. 6 is a perspective view of the detector.

Similar letters of reference indicate corresponding parts.

a represents portions of the frame of the loom.

b is the lay, provided with the projection b.

c is the breast-beam; d, the harness, and e the shipper, provided with the releasing-lever e, pivoted to the frame.

f represents the warp-threads.

A represents a horizontal arm bolted to the frame at each end of the machine, each arm f. Extending from one bracket C to the other and having bearings therein is a rocker-shaft H. Rigid on this shaft. is an oscillator, consisting of two arms H, next the inner surfaces of the brackets C, and a connecting-rod H",

which connects the outer ends of the arms. Loose on the shaft next these arms are a pair of somewhat shorter arms I, connected by a bar or deflector I. From the hub of one of these arms extends an arm J, pivoted at its lower end at J to a rod K, whose opposite end is pivoted at K" to the lower end of a lever L, whose upper end is pivoted at L to a plate or bracket L, secured to the breastbeam. Rigidly secured to the lever L is a lifting-dog N, whose end N bears against the under side of a dagger P, which is provided with a slot at P, through which the pivot P extends, said pivot being supported by the breast-beam. The shaft H has rigid on it a crank or lever h, which is connected by an eccentric-rod hi with an eccentric h on the shaft g, driven in the machine.

When the loom is working normally, the parts are in the position indicated in Fig. l. The deflector I I is vertical on the shaft H, and the detectors are supported by the warp. When a warp-thread. breaks, a detector F drops, as'in Figs. 2 and 3, into the path of the oscillator H H", between it and the deflector I. When the oscillator (operated by the shaft) strikes the detector, it pushes it against the deflector I and rocks the deflector, the rocking motion raising the dagger P by means of the connections K and L and dog N for the next forward movement of the lay, and the parts are stopped in the position indicated in Fig. 4.

The lease-rods are preferably made of papier-mach or other suitable material and may be solid'or tubular, as desired.

Having thus fully described our invention, what we claim, and desire to secure by Letters Patent, is-

1. In a warp stop-motion for looms, detectors as F supported by the warp and hanging freely therefrom; bars supported by the loom-frame and extending through the detectors; a horizontal shaft supported by the frame under the detectors and said bars; an oscillator comprising the bar H" and arms H rigid on the shaft and extending up therefrom under the rows of detectors; the normally stationary deflector consisting essentially of the arms I loose on the shaft and connecting-bar I supported by said arms and extending up from the shaft under the rows of detectors; and a shipping mechanism connected with the deflector, whereby the breakage of a warp-thread causes a detector to drop freely between the deflector and oscillator, and thus constitute a direct contact with both and connection between them, and whereby solely by such direct intermediate connection the oscillator imparts movement to the deflector and the deflector operates the mechanism connected with the shipper.

' 2. In a Warp stop-motion for looms, detectors supported by and hanging freely vertically from the warp-threads; the rocker-shaft supported by the frame under the detectors; an oscillator comprising a bar connected rigidly with the rocker-shaft and extending up therefrom under the rows of detectors; and a deflector connected with the shipping mechanism and comprising a bar loosely connected with the rocker-shaft and extending up therefrom under the rows of detectors; whereby the dropping of a detector between the oscillator and the deflector causes the oscillator by the movement of the rockershaft to act directly on the detector, and the detector to act directly on the deflector and solely by such action to operate the shipping mechanism.

3. In a warp stop-motion for looms, the detectors F supported by and hanging freely from the Warp-threads the bars E supported by the frame and extending through said warp-threads; the rocker-shaft H supported by the frame directly under the detectors; the oscillator H, H rigid on the shaft and extending up therefrom under the rows of detectors; the deflector I, I loose on the shaft and extending up therefrom under the rows of detectors; the shipping mechanism consisting of the arm J pivotally connected with the deflector, the rod K pivoted to the arm J, the lever L pivotally connecting the rod K with the breast-beam, the lifting-dog N rigidly secured to the lever L, and the slotted dagger P pivotally secured to the breastbeam; and mechanism for rocking the shaft H, all substantially as set forth.v

In testimony whereof We have signed our names to this specification in the presence of two subscribing witnesses.

JOHN VINGEN'IICUNNIFF. EDWARD CUNNIFF.

Witnesses:

JAooB H. Peron, EDWARD L. BROMLEY.

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