US321226A - Francis b - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1. L. J. KNOWLES, Decd. F. B. KNOWLES and H. A. MARSH, Surviving Executors.

WEPT STOP MOTIONPOR LOOMS. No. 321,226. PatentedJ une 30, 1885.

Witnesses Inventor:

N4 PETERS PhOiO-l-Rhognphnr, Washington D. G

(No Model.) 3 Sheets-Sheet. 2. L. J. KNOWLES, Decd.

F. B. KNOWLES and H. A. MARSH, Surviving Executors. WEFT STOP MOTION FOR LOOMS.

No. 321,226. Patehted June 30, 1886.

Witnesses: L I}'wentor:

7 W, lfi z W4 (No Model.)

' 3 SheetsSheet 3. L. J. KNOWLES, Decd.

F. B. KNOWLES and H. AL MARSH, Surviving Executors.

WEFT STOP MOTION FOR LOOMS.

Patented June 30, 1885.

Invenior:

N. PETERS. Photo-Lithograph". wwunmn. 0.1;

UNITED STATES PA ENT rrice.

LUOIUS J KNOVLES, OF WORCESTER, MASSACHUSETTS; FRANCIS B. KNOWVLES AND HENRY A. MARSH SURVIVING EXEOUTORS OF SAID L. J. KNOWLES, DECEASED.

WEFT STOP-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No, 321,226, dated June 30, 1885.

Application filed December 2, 1880. (No model.)

To all whom, itmay concern:

jecting from the loom-frame, a pin, h, upon.

Be it known that I, LUOIUS J. KNOWLES, of \Vorcester, in the State of Massachusetts, have invented an Improvement in \Veft Stop- Motions for Looms, of which the following is a specification.

The invention consists in the combination, in a weft stopmotion, of a dagger and fingers so connected that the movements of the one depend upon the movements of the other, with. a rocking shoe operating to guide the dagger or receive and communicate its thrust to the belt-shifting mechanism, as hereinafter set forth.

The invention consists, further, in certain details of construction hereinafter claimed.

In the drawings,l have shown only so much of the frame and mechanism of a loom as is necessary to illustrate the said invention and its mode of operation; and of these parts Figure 1 is a side elevation, the lay being in its extreme rear position. Fig. 2 is aplan, the lay still in its extreme rear position, and the weft-thread having been thrown. Fig. 3 is a sectional elevation on line a: a: of Fig. 2, the lay, however, having been brought some distance forward. Fig. 4 is a partial front view of the lay including that portion of the weftstop mechanism attached thereto.

A is theloom-frame. Bis the breast-beam.

O is the shipper-rod passing loosely through holes in projections a a upon a supportingplate which rocks upon a pivit, b, in the end of an arm, E, projecting from the loom-frame.

F is a spiral spring upon shipper-rod 0, between a projection, a, and a fixed sleeve, 0, on said rod, as shown.

G is the shipper-lever, secured by a set screw, 6, to a projecting end of a rock-shaft, H, extending across the loom and having hearings in the ends of the loom-frame. The shipper-lever is connected with the shipperrod by a lever, I, which is hinged to the shipper-rod at f, and rocks upon a stud, 9, prothe end of the shipper-lever working in a locking-slot, i, in the upper end of the lever I A stop, j, limits the backward movement of theshippinglever.

an elbow-arm, m, the horizontal portion of which is in contact with the upper edge of the finger J, the said finger being of such shape 4 that a slight rocking forward of the elbow-arm pushes it down, thus rocking the shaft H and operating the belt-shipping mechanism. The rocking motion of the shoe K is limited by a notch, a, in its lower edge,into which extends a projection, 0, from the arm L, and its center of gravity, including the elbow-arm, is such as to tend to lift the elbow-arm from the finger J and throw the shoe back as far as the slot n and projection 0 will permit.-

The shoe K has a stop, p, to receive the thrust of the dagger, while its rear portion projects upward and is cam-shaped to guide the dagger, as will hereinafter appear.

S is the lay having a reciprocating motion by means of the crank-wheel M and connecting-rod N.

P is the dagger made in two parts, one part held in a socket in the other by means of a set-screw, 3/. The dagger is pivoted at v to a bracket, a, beneath the lay, and is connected by a connecting-rod, w, with the crank-pin of a small crank-shaft, s, which has bearings, as shown, in a bracket, t, upon the front of the lay. This crank-shaft s carries the feelers c, secured thereto by a hub, c, and set-screw t. The feelers are opposite the slot 0' and fall into the slot to automatically stop the loom.

The operation is as follows: The lay being at its rear position in the loom, the forward end of the dagger rests upon the highest part of the shoe K, and the feelers 6 stand up, but the center of gravity of the dagger is such that upon the forward motion of the lay its forward end follows down the steep incline of the shoe K and lowers the fingers. weft-thread has been properly stretched across the slot 9, the feelers striking it rest upon it and hold the dagger up so that it clears the stop p in its continued forward motion, and when the lay again goes back in the loom the If the p forward end of the daggerniding up the steep i It is also obvious that the dagger and fluincline of the shoe, raises the feelers to their nearly upright position; but if, in the forward motion of the lay, the weft-thread has not been properly thrown, the feelers in their downward movement will fall into the slot 0" and permit the forward end of the dagger to strike the stop thereby rocking the shoe K forward, and operating the belt-shipping mechanism, as before stated.

The dagger has a slot, 12 in its upper edge, one side or the other of which strikes against the bracket u'to resist the thrust of the dagger or limit the forward throw of the feelers.

The belt-shipping mechanism herein described as automatically operated by my said improved stop-motion is substantially the belt shipping mechanism patented to me in Patent No. 197,641. Itis obvious, however, that my said improved stop-motion might be automatically employed in connection with other beltshipping devices without departing from my present invention.

gers, connected as above described, and the rock-shoe working therewith, may be respectively attached to the lay and breast-beam of any ordinary loom, in the manner described.

I claim- 1. The lay S, feelers e, dagger P, crankshaft 8, and connecting-rod w, in combination with the breast-beam B, rock-shoe K, finger J, shaft H, and a belt-shifting mechanism, substantially as described.

2. The dagger P, adapted to be attached on the under side of the lay, the connecting-rod w, the shaft 8, and the feelers e, in combination with the bracket t, adapted to be attached to the lay, and the cam or shoe K, adapted to be attached to the breast-beam, substantially as described.

LUCIUS J. KNOW/LES.

itnesses:

W. W. SWAN, H. G. OLMSTED.

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