US2750967A

US2750967A - Picker stick check

Info

Publication number: US2750967A
Application number: US399012A
Authority: US
Inventors: Marion M Parrish; Walter L Parrish
Original assignee: Individual
Current assignee: Individual
Priority date: 1953-12-18
Filing date: 1953-12-18
Publication date: 1956-06-19
Anticipated expiration: 1973-06-19

Description

June 1956 M. M. PARRISH ET AL 2,750,967

PICKER STICK CHECK Filed Dec. 18, 1953 2 Sheets-Sheet l T": u i 1 i i i ,86 5 1 5 I 3 7 f l i I l 7 5 W a i T a. 27

| I f :1 \l I; w u 4 u u g Q LL41 IN VEN TORS WALTER 1.. Paee/sfl, MAE/0N M. nee/sy,

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PICKER STICK CHECK Marion M. Parrish and Walter L. Parrish, Columbus, Ga.

Application December 18, 1953, Serial No. 399,012

7 Claims. (Cl. 139-167) This invention relates to a check for the picker stick of a loom, and more specifically, the invention is directed to a jaw type picker stick arrester.

The primary objects of this invention is to gradually arrest movement of a loom picker stick and to avoid the transmission of violent shocks to the shuttle and quill of the loom.

A further object is to control the resistance offered to the movement of a picker stick as it returns from its shuttle throwing movement and to hold the picker stick against rebound.

It is a still further object of this invention to provide an arresting device for the movement of a 100m picker stick which is durable, inexpensive to manufacture and to maintain, and which is non-complex in construction and installation.

Other and further objects and advantages of this invention will become more apparent from a consideration of the following specification when read in the light of the appended drawings, in which:

Figure 1 is a top plan view of a picker stick arresting device constructed in accordance with the teachings of this invention;

Figure 2 is a side elevation of the device shown in Figure 1;

Figure 3 is a detail top plan view of the elements of the arresting device prior to engagement with the picker stick, and taken on the horizontal plane of the line 33 of Figure 2, and loo-king in the direction of the arrows;

Figure 4 is a top plan view of the elements of the arresting device after engagement with a picker stick;

Figure 5 is a longitudinal cross-sectional view taken on the horizontal plane of line 5-5 of Figure l and looking in the direction of the arrows; and

Figure 6 is a cross-sectional view taken on the vertical plane of line 6-6 of Figure 5, and looking in the direction of the arrows.

Referring now more specifically to the drawings, reference numeral 1 designates, in general, a flat bracket having an elongated arm 2 which terminates in an integrally formed laterally extending base 3 from which projects an end extension which lies in spaced parallel relation to the arm 2 to form an elongated slot 5.

The base 3 of the bracket 1 is provided with a pair of transversely extending spaced slots 6 aligned in the direction of their elongation and which are adapted to receive therethrough the bolts 7 upon each of which is pivotally mounted a jaw 8.

As seen in the drawings, the bolts 7 pass through suitable passages 9 formed in one of the ends of each of the jaws 8, substantially perpendicular to the longitudinal axis thereof. The jaws 8 rest for swinging movement toward and away from each other between the washers 10 held in place by cotter pins 11 adjacent the lower end of the bolts 7 and spacers 12 carried by the bolts 7 adjacent the underside of the base 3. Nuts 13 secure the jaws 8 to the base 3 of the bracket 1.

Each of the jaws 8 is constructed with a pin 14 which nited States Patent ice extends outwardly therefrom adjacent the pivoted end thereof and anchored to the pins and extending across the space between the jaws are the opposite ends of a retractile coiled spring 15 which tends to urge the free ends of the jaws 8 outwardly and away from each other.

Carried by the jaws 8 remote from the passages 9 are inwardly extending opposed bosses 16 defining convex jaw members around which are extended opposite ends of a leather strap 17 retained in position thereon by the screws and

clamp washers

18 and 19, respectively.

The :arm 2 is formed with a plurality of spaced longitudinally extending elongated aligned slots 20 adjacent one of its ends and an elongated slot 21 adjacent its other end to receive therethrough the threaded lower ends of

bolts

22 and 23, respectively, having the heads thereof counter-sunk in the lay 24 of a loom. Nuts 25 threaded on the

bolts

22 and 23 rigidly secure the bracket 1 below the lay 24 against a spacer block 26 through which pass the bolts 22, and a bumper block 27 through which passes the bolt 23. The bumper block 27 carries an extension which projects laterally outwardly therefrom and into the path of movement of the picker stick 31 to define a cushioning element 28 that faces the slot 5.

Stop means comprising fingers 30 are carried by the arm 2 and extend downwardly therefrom into the arcuate paths in which move the jaws 8 to restrict movement thereof under the influence of the spring 15 beyond selected positions.

Referring to Figure 1 it is seen that the bracket 1 is supported from the lay 24 with the slot 5 and cushioning element 23 disposed in the path of movement of a picker stick 31. With the component elements of this device secured to the lay 24 as shown in Figure 1 and with the picker stick 31 moving in the direction of the arrows as illustrated in Figure 3, the picker stick 31 passes between the bosses or convex jaw members 16 of the jaws 8 and engages the strap 17. Upon engagement of the strap 17 by the picker stick 31, the convex jaw members 16 of the jaws will advance toward one another against the effort of the spring 15 thus gradually bringing the picker stick to rest with the convex jaw members 16 of the jaws 8 forcing adjacent portions of the strap 17 in abutting relationship, and the strap 17 into embracing relation to the picker stick 31 to prevent rebound thereof.

Obviously, the embraced condition of the picker stick 31 is only momentary as the spring 15 will move the jaws 8 to open position just as soon as the momentum of the picker stick is absorbed by the check, thus leaving the picker stick free for the next pick. The

.slots

20 and 21 provide for adjustment of the eifective length of the travel of the picker stick 31 to so orient the shuttle at the end of its travel as to enable the machine to effect a quill change. Wear on the strap 17 may be compensated for by moving the bolts 7 inwardly or outwardly in the slots 6 according to the conditions indicated.

Having described and illustrated one embodiment of this invention in detail, it is to be understood that the same is offered by way of example, and that the invention is to be limited only by the scope of the appended claims.

What is claimed is:

l. A picker stick check comprising a bracket and means for securing said bracket on a loom, a pair of jaw members pivotally mounted on said bracket and having a pair of opposed adjacent free end portions, a flexible strap having its opposite ends secured to said free ends of said jaw members and extending therebetween, means connected with each of said jaw members constantly tending to urge the free ends thereof for movement away from each other, said flexible strap being disposed in the path of movement of said picker stick in one direction whereby said picker stick upon engagement with said strap pivots said free ends of said jaw members toward each other to lap said strap around said picker stick and to arrest the movement thereof, and means for adjusting each of said jaw members transversely with respect to said lay of said loom.

2. A picker stick check comprising a bracket and means for securing said bracket on a loom, a pair of jaw members pivotally mounted on said bracket and having a pair of opposed adjacent free end portions, a flexible strap having its opposite ends secured to said free ends of said jaw members and extending therebetween, means connected with each of said jaw members constantly tending to urge the free ends thereof for movement away from each other, said flexible strap being disposed in the path of movement of said picker stick in one direction whereby said picker stick upon engagement with said strap pivots said free ends of said jaw members toward each other to lap said strap around said picker stick and to arrest the movement thereof, means for adjusting said bracket longitudinally of the lay of said loom, and means for adjusting each of said jaw members transversely with respect to said lay of said loom.

3. A picker stick check comprising a bracket adapted to be secured below the lay of a loom, said bracket having an elongated arm connected at one of its ends with one end of a laterally extending base, and a bracket extension portion connected with the other end of said base and positioned adjacent to, parallel and spaced from said arm, means for connecting said elongated arm longitudinally of said lay with said base portion disposed transversely of the path of movement of the picker stick of said loom, a pair of jaw members having one of their respective adjacent ends pivotally mounted on said base, a flexible member having opposed ends secured to the free ends of said jaw members and extending therebetween, and resilient means connected between said jaws constantly tending to urge said free ends of said jaws away from each other.

4. A picker stick check comprising jaws mounted adjacent opposite sides of the path of movement of a picker stick to move in arcuate paths which intersect the path of movement of the picker stick, yielding means carried by the jaws and extending therebetween for holding said jaws out of the path of movement of the picker stick, and a strap carried by the jaws and extending therebetween across the path of movement of the picker stick for movement thereby against the effort of the yielding means and into embracing relation of the picker stick to arrest rebound thereof.

5. A picker stick check comprising jaws mounted adjacent opposite sides of the path of movement of a picker stick to move in arcuate paths which intersect the path of movement of the picker stick, yielding means carried by jaws and extending therebetween for holding said jaws out of the path of movement of the picker stick, a strap carried by the jaws and extending therebetween across the path of movement of the picker stick for movement thereby against the effort of the yielding means, and bosses carried by the jaws and extending laterally inwardly therefrom adjacent the strap for intersecting the path of movement of the picker stick and engaging the strap to cause it to embrace the picker stick and positively arrest rebound thereof.

6 A picker stick check comprising jaws mounted adjacent opposite sides of the path of movement of a picker stick to move in arcuate paths which intersect the path of movement of the picker stick, yielding means carried by the jaws and extending therebetween for holding said jaws out of the path of movement of the picker stick, a strap carried by the jaws and extending therebetween across the path of movement of the picker stick for movement thereby against the effort of the yielding means and into embracing relation of the picker stick to arrest rebound thereof, and stops mounted adjacent opposite sides of the path of movement of the picker stick and extending into the arcuate paths for engaging the jaws and arresting movement thereof under the influence of the yielding means.

7, A picker stick check comprising jaws mounted adjacent opposite sides of the path of movement of a picker stick to move in arcuate paths which intersect the path of movement of the picker stick, yielding means carried by the jaws and extending therebetween for holding said jaws out of the path of movement of the picker stick, a strap carried by the jaws and extending therebetween across the path of movement of the picker stick for movement thereby against the effort of the yielding means, bosses carried by the jaws and extending laterally inwardly therefrom adjacent the strap for intersecting the path of movement of the picker stick and engaging the strap to cause it to embrace the picker stick and positively arrest rebound thereof, and stops mounted adjacent opposite sides of the path of movement of the picker stick and extending into the arcuate paths for engaging the jaws and arresting outward movement thereof under the influence of the yielding means.

References Cited in the file of this patent UNITED STATES PATENTS 1,387,404 Jodoin Aug. 9, 1921 1,528,328 Hargrove Mar. 3, 1925 1,599,297 Souczek Sept. 7, 1926 1,850,495 Carlson Mar. 22, 1932 FOREIGN PATENTS 85,707 Austria Sept. 26, 1921