US765694A - Underpick motion for looms. - Google Patents

Description

No. 765,694. PATENTED JULY 26, 1904'. J. s. AINLEY & B. HOLLINGWORIH.

UNDERPICK MOTION FOR LOOMS. APPLICATION FILED NOV. 20, 1903.

N0 MODEL.

Patented July 26, 1904.

PATENT OFFICE.

JOHN SHAl/V AINLEY, OF HUDDERSFI OF DOBCROSS, ENGLAND,

ELD, AND EDWARD HOLLINGWORTH, SAID HOLLINGWORTH ASSIGN OR TO OROMP- TON & KNOWLES LOOM WORKS, ACORPORATION OF MASSACHUSETTS.

UNDERPICK MOTION FOR LOOMS- SPECIFICATION forming part of Letters Patent No. 765,694, dated July 26, 1904. A li ti n filed November 20, 1908. Serial No. 181,918. (No model.)

To al whom it may concern:

Be it known that we, JOHN SHAW AINLEY, residing at Huddersfield, and EDWARD HOL- LINGWORTH, residing at Dobcross, in the county of York, England, have invented certain new and useful Improvements in Underpick Motions of Looms for Weaving, of which the following is a specification.

This invention relates to underpick motions of looms for weaving.

The object of our invention is to provide new and novel means for actuating the pickers to throw the shuttles across the loom without the use of picking-sticks as now employed, in dispensing with which the noise and shocks occasioned by the blows of the picking-sticks against the pickers are avoided, and consequently the pickers are not subject to the same excessive wear and tear as at present and last considerably longer.

Our invention consists of the arrangement and combination of parts, as will be hereinafter fully described.

In the accompanying drawing, forming a part of this specification, we have shown one embodiment of our improvements in or connected with underpick motions as seen from the rear of the loom.

Our invention consists in mounting on each ordinary picking-shaft a (at the sides of the loom, one side only of the loom being shown) a vertical arm or lever 5, to the upper end of which is attached a leather or other suitable flexible strap or connection 0, whose opposite end is secured to the usual picker d on the picker-spindle e. The said picker is also connected by a flexible strap connection f with the upper end of an arm or stick g, either pivoted at g, as shown, or mounted on a stud carried by a bracket at one side of the lay or going part it or in any other convenient and suitable position below the lay or going part.

The stick 9 may be arranged to extend between the picker-spindle c and the rear of the lay or to enter between same in its movement toward the loom. In this instance a guide '5 is secured to the lay or going part it to guide the stick 9. To the lower end of the arm or stick 9 is secured a strap j, connected to a spring 7?, which in turn is connected by a rod or link (not shown) to a corresponding spring similarly connected to a stick or arm, such as g, at the opposite side of the loom, or a spring may be attached at one end to the arm g and at the opposite end to a part of the lay in lieu of the arrangement shown.

The picking-shafta is actuated by pickingbowls engaging a shoe (not shown) on said shaft in the ordinary manner or by cam or tappet acting against a cone onv the pickingshaft, the motion of the shaft at each actuation oscillating the upright arm or lever 6, fast thereon, toward the center of the loom, whereby, through the flexible connection 0, the picker d is drawn sharply forward by a whip action to throw the shuttle across the loom, the pivoted arm. or stick 9 being drawn forward along with the picker and expanding the spring k, which immediately the pick has been given acts through the arm 9 to draw back the picker d and lever b to their normal positions. The motion of the pulling-back stick 9 is checked by a buffer in this instance located on the lay or going part it. By means of this underwhip pick motion there is no impact or blow upon the picker, the action being silent and smoother and easier than the ordinary underpick motion.

The arm or stick 6 may be secured to an extension on a hub secured. to a disk or plate fast on the picking-shaft a, said hub being adjustable radially to adjust the position of the stick I) to suit any alterations in the picking.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is I 1. In underpick looms, an underpick motion comprising a picking arm or lever fast on the picking-shaft and connected by a strap or like flexible connection to the picker, and said picker in combination with a pulling-back stick or arm also connected by flexible connection to the picker, and a retracting-spring for drawing back said stick or arm, substanfor drawing back the supplementary pullingtially as shown and described.-

back stick, substantially as set forth. In testimony whereof we aflix our signatures 2. In a loom, the combination with a pickin presence of two witnesses.

5 ing arm or lever fast on the picking-shaft, JOHN SHAW AINLEY. and connected by a strap or flexible connec- EDWARD HOLLINGWORTH. tion to the picker, and said picker, of a pull- Witnesses: ing-back stick or arm also connected by a JOHN R. SUALAM,

flexible connection to the picker, and a spring Y THOMAS H. HIRST.

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