US1971813A

US1971813A - Check strap for picker sticks

Info

Publication number: US1971813A
Application number: US680089A
Authority: US
Inventors: Cristoforo Ralph Di
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-07-12
Filing date: 1933-07-12
Publication date: 1934-08-28
Anticipated expiration: 1951-08-28

Description

Aug. 28, 1934. R. Dl cRlsTQFoRo 1,971,813

CHECK STRAP FOR PICKER STICKS Filed July l2, 1955 I A l v l.: 35,3%5555/,32315 f. 1,7 mmmlmwlmw IN VEN TOR.

A TTORNE YS.

Patented Aug. 28, 1934 UN1TED STATES f ,CHECK s'raAP "FoRQrI'oKER strioKs Ralph Di Cristoforo, Providencaf R. I. Application July Laicas, serial No.A 680,089

claims. tenias- 161i strap forfastening the same in place thus eliminating a piercing operationr Another object of the invention is the provision of a picker stick check strap` which may be formed of several pieces of strap material whereby broken straps may be utilized for further use inthe loom.

A further object of the vinvention is thehinding of the ends of the picker stick check strap by a device which will maintain the same` rmly and securely in position and extend the effective 2Q length of the strap. if j i With these and other objects in view, ,the invention consists Yof certain novel features of con` struction, as will be morefully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is an elevation illustrating a portion of a loom lay, a portion of the picker stick and my picker strap check as mounted upon the lay.

Fig. 2 is a sectional view substantially on line 2-2 of Fig. 1.

Fig. 3 is a perspective View of one part of my clamping device for my improved picker stick check.

Fig. 4 is a perspective view of the other part of the clamp. Y

Fig. 5 is a perspective View of a fragmental portion of a piecing strip which may be used for supplementing a broken strap of a picker stickV order that the piercing of the strap may be eliminated and a strap of less length utilized so that there will be no doubled portion of the strap but rather a clamp which will supplement the length 105.5; of the strap for encircling the stick, I have pro- YStrap vided a bracket which may be clamped to the lay with an extended length of surface providing two spaced clamping jaws to grip the `ends of the strap allowing the same to be Ymaintained in spaced relation and be bound without any part piercing the strap, also in order that pieces of astrap may be utilized I may slot the ends of a broken strap and piece it out with a strap of narrow dimension, suitably slitting the strap to form locking fingers to prevent the strap from being Withdrawn from the slit, and the following is a detailed description of the present embodiment of this invention illustrating the preferred means by which lthese advantageous results may beaccomplished.

Y With reference to the drawing, 10 designates the lay of a loom and 11 the picker stick which oper` ates ina slot in the lay to throw the shuttle across the loom. In order that the movement of this picker stick 11 may be checked after it has struck a shuttle, a strap 12 is provided to catch and stop the picker stick after the working portion of its stroke. This strip Vis'usually formed'of leather andinthis present instance is of this material.

A bracket 13 consisting of a body portion 14 having a hole 15 is clamped to the lay by means of a bolt and nut 16 extending from the inside of the slot in the lay outwardly, this bracket being positioned on the back of the lay, and in order that a single bolt may be used for bolting the bracket on the lay, iingers 17 are bent upwardly to engage the lower edge of the lay '10 thus providing a threepoint support and preventing a rocking movement of this bracket on the lay. Y A

The bracket is generally of a T-shape, and the head portion 18 has laterally extending clamping arms 19 and 20 providing a considerable area of clamping surface usually of a width greater than the Wi-dth of the strap, which clamping surface is grooved as at 21. AY cooperating clamping plate 22 is provided of a length substantially the length ofthe head of the T which is also provided with grooves 23 Which register substantially with the grooves 21 in the jaw formed on the bracket part of the clamp. Y Y

The ends 24 and 25 of the strap are positioned in spacedrelation just covering the grooves 21 and 23 and the plate 22 is drawn tightly against these ends by a bolt 26'having a head 27 engaging the outer surface ofthe head and extending through an opening 28 therein and thence through an opening 29 in the plate 22 where itis bound tightly by a nut 30 on the outer threaded end 31 of the bolt. .As the plate is forced into position, the

leather straps are pressed and parts of the leather strap extend into the grooves 22 and 23 as at 32 thereby additionally locking the ends of the strap rmly in position. In order that too great a pressure be not brought to bear upon the center of the plate I may provide a washer or leather 33 surrounding the bolt 26 and supporting the center of the plate where pressure is received thereon.

By this arrangement the picker -stick 11 may be swung toI the opposite ends of its stroke, as illustrated by the full and dotted lines shown in Fig. 2 and thereby checked from further movement. It so happens in straps of this character that breaks will occur as at 35 and in some cases I may utilize a strap so broken for further use by forming a slot 36 in an end 37 where broken and place therein a strap 38 cut to form

lingers

39 and 40, as illustrated in Fig. 5 whence it `may be positioned through slot 36 with the

ngers

39 and 40 preventing the extending length of the strap or detachment of these parts 38 from the portion of the broken main strap 12.

I nd that in lengthening a broken strap in the manner above described for further use for a check strap, that if the thickness of the material employed to lengthen the strap were different than the strap being repaired it would be desirable to lengthen both ends thereof so as to have substantially the same thickness at each end positioned between the bracket 18 and the clamping plate 22 so as to equalize the binding action of the clamp. The washer 33 being changed to accommodate the thickness of the material employed in lengthening the broken strap.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being dened and limited only by the terms of the appended claims.

I claim: 'y if l l. A picker stick check for looms, comprising an imperforate strap to extendv about the picker stick, a bracket secured to therlay and compris- 'limit the strap in moving in one direction with relation to the slot, and means for binding the ends of the strap in fixed relation.

3. A picker stick check comprising a flexible strap formed of a plurality of pieces of material, the pieces being locked together by the slotting of one piece and passing another piece through the slot with outwardly flaring nger portions to limit the strapy from moving With relation to the slot, and a clamp secured to the lay and binding the ends of the strap together in a single plane.

4. A picker stick check comprising a flexible strap formed of a plurality of pieces of material, the pieces being locked together by the slotting of one piece and passing another piece through the slot with outwardly liaring iinger portions to limit the strap from moving with relation to the slot, and a clamp secured to the lay and binding the ends of the strap together in a single plane, the bound end of the strap being imperforated.

5. A picker stick check for looms, comprising an imperforate strap to extend about the picker stick, a bracket secured to the lay and comprising one side of an elongated jaw of a clamp and a plate forming the other Yjaw of the clamp, the ends of said strap positioned between said jaws in substantially the same plane, and means for binding said jaws together, said jaws being provided with gripping means for securely holding the strap.

RALPH DI CRISTOFORO.