US769179A - Shuttle-checking means for looms. - Google Patents

Description

No. 76'9,179. PATBNTED SEPT. 6, 1904'.

' J. NORTHROP.

SHUTTLE CHECKING MEANS FOR LOOMS.

APPLICATION FILED MAR. 7. 1904 N0 MODEL.

I l: ulmmulnmm I UNITED STATES Patented September 6, 1904.

PATENT ()FFI E.

JONAS NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPO- RATION or MAINE.

SHUTTLE-CHECKING MEANS FOR LOOMS- SPECIFICATION forming part of Letters Patent N 0. 769,179, dated September 6, 1904.

' Application filed March '7, 1904. Serial No. 196,803. (No model.)

To all whom it may concern;

Be it known that I, J ONAS NoRTHRor, a subject of the King of Great Britain, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Shuttle-Checking Means for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like numerals on the drawings representing like parts. Y

This invention has for its object the pro duction of novel, simple, and durable shuttlechecl'ring means for looms whereby the speed of the shuttle entering the shuttle-box is efliciently checked, the construction and arrangement being such that a relatively large friction-surface is presented to contact with the shuttle.

The' present embodiment of my invention comprehends, broadly, a flexible, elastic, or spring binder fixedly held at one end and having a portion thereof in the path of and to be engaged by theinooming shuttle, the inherent elasticity of the binder, with its flexibility, causing it to conform to a considerable extent to the contour of the shuttle, to thereby present an effective friction-surface.

The novel features of my invention embodied in one practical form thereof 'will be fully described in the subjoined specification, and

. particularly pointed out in the following claims.

Figure 1 is a top or plan view, partly broken out, of one end of a loom-lay having a shut- .tle-box thereon and with one practical embodiment of my invention in operative rela- Fig. 2 is a rear elevation of the mechanism shown in Fig. 1. Fig. 3 is a lefthand end elevation of the lay and parts thereon shown in Figs. 1 and 2, and Fig. 4 is a plan view of the binder audits holding device.

The lay 1, having a shuttle-box thereon comprising a fixed front plate 2, top or cover plate 3, and back wall 4, provided with a rearward extension 5 to support the free end of the binder, and the protector mechanism, in-

cluding a protector-shaft 6, controlled by a construction and operate in the usual manner.

In accordance with my invention as herein embodied the binder 10 is made of a flexible, elastic, or spring metal strip having a bend or swell 11 near its inner end, the binder being extended beyond the swell at 12 to pro.- ject behindthe back wall 4 of the shuttle-box, said wall serving as a stop to limit inward movement-of the binder, as shown in Fig. l. The binder-finger 9 cooperates with the free end of the binder, substantially in usual manner, to control the operation of the protector mechanism.

I may use the binder without any facing other than the polished surfacethereof; but I prefer to use a non-metallic facing 13, Fig. 1, of leather or other suitable material, presenting a good friction-face, the facing being attached to the binder in any convenient man- The holder has an elongated front face against which the outer end of "the binder is laid and secured in place by'a bolt 17 and nut 18, so that when the nut is set up and the holder 14 clamped'in position the binder will be fixedly held at its outer end, as shown in Figs. 1 and 4. When the incoming shuttle strikes the swell 11, the inner end of the binder is thrown outward, owing to ,the flexibility of the binder,

against the resistance of its own spring or resiliency primarily, to which is added in a much less degree the resistance of the protector-spring 7. As the shoulder of the shuttle passes beyond the binder-swell the resiliency and flexibility of the binder combine to make the binder conform very considerably to the contour of the shuttle, presenting an extended friction or checking surface thereto.

Instead of only a small part of the binder contacting with the shuttle, as with the ordinary inflexible or rigid binder, my novel binder acts through a considerable portion of its length upon and effectually checks the letting oif the adjusting-screw 21 the tension of the spring-binder is increased or decreased, as desired, the inner end of the holder being extended, as at 23,beyond the clamping stud 15 and bearing upon the back face of the binder, the face of the extension 23 being shown as slightly convexed, to prevent any possibility of injury to the binder.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In shuttle-checking means for looms, a flexible, elastic binder having a part thereof in the path of and to cooperate with an incoming shuttle, an angularly-movable holder to which one end of the binder is rigidly secured, a stop to limit inward movement of the other end of the binder, and means to clamp the holder in fixed position.

2. In shuttle-checking means for looms, a

flexible, spring-binder to cooperate with the shuttle when boxed, an angularly-movable holder to which-one end of the binder is rigidly secured, means operative by angular movement of the holder to vary the resistance of the binder to flexure when engaged by the shuttle, and means to clamp the holder in fixed position.

3. In shuttle-checking means for looms, a lay, a flexible, metallic spring-binder having a swell portion in the path of and to be engaged by an incoming shuttle, an upright stud on the lay, an angularly-movable holder mounted on said stud, and having secured to it the outer end of the binder, a lixed stop to limit inward movement of the opposite end of the binder, said holder having its face adjacent the binder elongated to act upon the binder between the stud and the stop, and thereby vary the binder tension, means to adjust the angular position of the holder, and a device to clamp the latter in adjusted position.

at. A lay provided with a shuttle-box and having an upright headed stud at the upper end, aflexible metallic spring-binder having a part thereon in the path of and to be engaged by the incoming shuttle, a holder rotatably mounted on the stud and rigidly secured to the outer end of the binder to restrain the same from movement, said holder having an inward extension adjacent the binder, and an arm extended dowmvard hehind the lay, an adjusting-screw in said arm to engage the lay and adjust the angular position of the holder, and means acting through the stud to clamp the holder in adjusted position, change in the angular position of the holder acting through the inward extension thereof to vary the spring action of the binder.

5. In shuttle-checking means for looms, a flexible, metallic spring-binder in the path of and to be engaged by an incoming shuttle, a non-metallic facing for-the binder, and adjustable means to support and hold rigidly the outer end of the binder, and also to vary its tension.

In testimony whereof I have signed my name to this specification. in the presence of two su bscribing witnesses.

JONAS NORTH ROI.

Witnesses:

FRANK E. DoDou, J r., EDWARD F. ALLEN.

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