US653456A - Loom. - Google Patents

Description

No. 653,456. Patented July [0, I900.

W. MBMICHAEL.

LUOM.

(Application filed Oct. 13, 1898.); (No Model.)

WI Z'NEEEIEI IN VENT/17H.

UNITED STATES PATENT FFICE.

WILLIAM MOMIOHAEL, OF IVOONSOCKET, RHODE ISLAND.

LooM.

SPECIFICATION forming part of Letters Patent No. 653,456, dated July 10, 1900.

Application filed October 13, 1898. Serial No. 693 A40. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM MOMICHAEL, of IVoonsocket, in the county of Providence and State of RhodeIsland, have invented a new and useful Improvement in Looms; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification. I

This invention has reference to an improvement in the picker motion of looms,

whereby the shuttle is thrown across the open In the drawings, A indicates the usual crank-shaft of the loom; B, the lay; C, the

lay-sword, and D the pitman connection 0 the lay with the crank-shaft. E indicates the end frames of the loom.

To each end of the crank=shaft, near the cranks, is secured a wiper A. These Wipers extend from the crank-shaft, both in the same direction, so that at each revolution of the crank-shaft both wiper motions operate to throw the shuttle, if present, as the lay approaches the end of the rearward swing. .The lever A is pivoted on a stud A secured to a bracket projecting from one of the end frames at a point below the crank-shaft and forward beyond the path of the crank. The upper end of the lever A is provided with the roller A which bears on the. wiper A. The other and longer part A extends toward the lay and is provided with a series of holes, in one of which the hook A is secured. The pickerstick B is pivoted on the stud B ,'connected with the lay B. The lower end of the pickerstick B is connected with the lay by the spiral spring B. The upper end 13 0f the pickerstick extends through the picker F, which, sliding on the picker-rod F, extends, as usual,

into the shuttle box and operates the shuttle. The picker-stick is connected by the rod B with one arm of the bell-crank B", pivotally supported on the lay B, and the other arm of the bell-crank lever is connected by the flexible strap B with the end A of the lever A as is shown in Figs. 1 and'2 of the drawings.

In Fig. 1 the lay is shown in the center of its reciprocation moving toward the rear, while the wiper A moves toward the front of the loom. At this point the wiper acts on the lever A and the roller A follows the in clined face of the wiper and is moved upward with increasing rapidity. This movement is imparted to the end A of the lever A through about double the distance, and by it the picker,

and the shuttle, if present, is started slowly with rapidly-increasing velocity to throw the shuttle through the shed across the loom. The rapidly increasing velocity in the throwiug of the shuttle by this device is an important feature in the operation of my improved picker motion.

I The wiper A may be secured to the crankshaft to operate the lever A at any desired point, so that by adjusting the wiper the shut- 1tle may be thrown before the lay reaches the limit of its backward movement, or the wiper may be secured on the crank-shaft so that the lever A will exert the final quick move ment and operate the picker to send the shuttle through the shed of the warp at the in stant the lay reaches the extreme limit of its outward movement. This opportunity of adjustment by which the throw of the shuttle may be regulated is an important feature of my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent In a loom, the combination with the lay, the crank-shaft, the connections between the crank-shaft and the lay, and the picker, of the wiper A secured to the crank-shaft, the lever A pivotally supported in front of and below the crank-shaft the short arm of said" lever bearing on the wiper, the picker-stick B pivotally connected with the lay, the bell-crank lever B pivoted to the lay, the rod B connecting the bell-crank lever with the pickerstick, the flexible strap 13 connecting the bell-crank lever with the long arm A of the In witness whereof I have hereunto set my lever A and the resilient coiled spring 13 hand. eonnectim the heel of the picker-stick with V the lay; whereby, at each rotation of the crank l WILLIAM MCMKIIAEL' Vitnesses:

5 shaft, the picker motions on the ends of the lay are operated to throw the shuttle when present, as described.

JOSEPH A. MILLER, J12, B. M. SIMMS

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