US1967510A

US1967510A - Yarn catcher for looms

Info

Publication number: US1967510A
Application number: US668993A
Authority: US
Inventors: John H Llewillyn
Original assignee: Individual
Current assignee: Individual
Priority date: 1933-05-02
Filing date: 1933-05-02
Publication date: 1934-07-24
Anticipated expiration: 1951-07-24

Description

July 24, 1934. J H. LLEWILLYN 1,967,510

YARN CATCHER FOR LOOMS Filed May 2, 1933 k I J 55 11 2 Patented July 24, I934 UNITED-STATES; PATENT,

OFFICE .YARN. CATCHER FOR LOOMS f John H. Llewillyn, Utica, N. Y. Application May 2, 1933, Serial No. 668,993

' cam (o1.139 2e0) My invention relates to a yarn Catcher for looms and I declare the following to be a full, clear, concise and exact description thereof sufiicient to enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing in which like reference characters refer to like parts throughout the specification.

The object of the invention is to provide a device that will catch hold and carry the loose end of a yarn into position where it can be cut or severed by the temple cutter of the loom.

Heretofore the loose yarns left by the shuttle in its passage across the loom when the yarn on the spool carried by the shuttle has reached its end causes the formation of bunches on the selvage or edge of the cloth.

The present invention is designed to cut off these free ends of yarn and allow them to be severed by the temple cutter of the loom, whereby to produce a piece of cloth that has a perfectly straight edge.

The object will be understood by referring to the drawing in which:

Fig. 1 shows a perspective view of the improved yarn catcher for looms.

Fig. 2 is an enlarged view showing a perspective of a double cam employed.

Fig. 3 is a perspective view of a piece of the finished cloth showing the edge free from bunches.

Referring more particularly to the drawing, only such parts of a loom as co-operate with the present device are shown. The master shaft 1 which has bearings in the frame-work denoted generally by 2 of the loom has connected thereto a compound cam 3 which has an eccentric surface 4 on one side and an eccentric or cam surface n 5 upon the other. The end of lever 6 rests upon the larger cam surface 4. Said lever 6 is pivoted or fulcrumed upon the shaft 10, having hearings in frame 2 of the loom. The opposite end of lever 6 is bent so as to form a portion parallel to itself 7 at 11. There is adjustably attached to the end 11 an upstanding support 12 which has pivotally mounted thereto at 13 an arm 14 carrying on its outer or free end a brush, comb or hook 15. Arm 14 is reduced at 16 to provide an inclined or cammed surface 17.

The lower end 18 of support 12 is bent back upon itself to form an open slot 19 for the projection of a bolt 20, whereby to hold said support in an adjustable manner to part 11 of lever 6.

I Brush 15 is actuated as hereinafter described,

5 whereby to cooperate with stationary brush 21 which is formed on arm 22that is attached in an adjustable manner at'23 to beam 24 of the loom frame 2.

The means for moving brush 15 with relation to stationary brush 21, whereby it will grasp and draw the free end of yarn 25 left by the shuttle at that or near end of loom when the yarn on the spool carried by said shuttle, not shown, runs out, towards and within the range of the cutting influence of temple cutter 26, embodies besides said lever 6 above mentioned, an auxiliary yoke 27 through which arm 14 is projected and is made to slide. The loop formed by said yoke 27 is suificiently large for allowing a limited amount of vertical play therein of arm 14. Yoke 27 is fixed at 28, 28 to standard 29 which has its lower end bent back upon itself to form an open slot 30 for the projection of a bolt 31, whereby to hold said support in an adjustable manner to end 32 of lever 33. Lever 33 is similar in shape to lever 6 and disposed within lever 6. It is fulcrumed upon shaft 10, having bearings in loom frame 2 and has its end 34 resting upon cam 5.

Temple cutter 26 is more fully shown and. de- 301 scribed in Letters Patent Nos. 546,778, 539,241, 540,032, 543,788.

The operation of the device is effected, whereby to prevent bunches of yarn accumulating on the selvage or edge 35 of cloth 36 by the opera- 51 tion of brush 15 through the arm 14 and lever 6 connection heretofore described. As actuated by lever 6, brush 15 will move forward into dotted line position shown in Fig. 1 with relation to stationary brush 21. In thus moving forward, 9 brush 15 will be held elevated from off stationary brush 21 by yoke 27 through which it rides and is cammed upward as the inclined surface 17 of arm 14 comes in contact with the contiguous edge of yoke 27. When brush 15 has reached its 5 limiting forward position in which position it will be directly over the location of the free end of the yarn 25 left by the shuttle as above mentioned. At this instant auxiliary yoke 27 is moved forward to dotted line position illustrated m in Fig. 1 by cam 5 actuating lever 33 and standard 29 fixed thereto. This movement of standard 29 will cause yoke 27 to slip along arm 14 to the narrower part thereof whereby to allow arm 14 and brush 15 carried therewith to drop 1 5 downward and come in contact with the free end of the yarn 25.

The further movement of brush 15 is toward and across stationary brush 21 until yarn 25 is drawn opposite and under temple cutter 40. At

this instant the end of the yarn 25 is cut by temple cutter 40 which is actuated with reference to its casing 41 and also with reference to the frame 2 of the loom. Temple cutter 26 will thereupon cut and sever the free end of yarn 25 to prevent the same from looping back into the warp 42 of the cloth 36 and thereby leave a projecting loop on the edge 35 of cloth 36. Such a loop will accumulate an objection able unch, T e rush 1 ont nues back; to ts original position shown in full lines in Fig. 1 whereupon standard 29 carrying yoke 27 is returned to original position or full line position second named brush, wherebyto catch a thread and other cam means for lowering said second named brush onto said thread.

2. In a yarn catcher for looms, a stationary brush, a movable brush located adjacent said stationary brush, cam means for operating said movable brush and a yoke member for lowering said movable brush at a predetermined interval and another cam for thus lowering said movable brush.

3. In a yarn catcher for looms, a stationary brush, a movable brush located near said stationary brush, cam means for operating said stationary brush at a predetermined direction, a yolge member for lowering said movable brush at a predetermined interval, whereby to engage a thread a seoond cam member for thus lowering said movable brush and means for severing said thread, whereby to prevent bunches on the selag of the c o h! 7 JOHN H. LLEWILLYN.