US2023187A

US2023187A - Picker stick bumper

Info

Publication number: US2023187A
Application number: US20455A
Authority: US
Inventors: Willingham Brock Elder
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-05-08
Filing date: 1935-05-08
Publication date: 1935-12-03
Anticipated expiration: 1952-12-03

Description

1935 B. E. WILLINGHAM 5 PICKER STICK BUMPER Filed May 8, 1935 v BrocliEWillingham,

.face of the lay i8.

Patented Dec. 3, 1935 UNITED STATES PATENT OFFICE Application May 8,

8 Claims.

This invention relates to picker stick bumpers for looms and has for its primary object the provision of a bumper which is so designed that it may be easily and quickly applied to and removed from the loom.

Another object is to provide a bumper which may be installed by merely loosening the bolts which hold the quill chute or deflector plate in position and without the necessity of passing one or more of the bolts through the bumper as in previous devices.

A further object is the provision of a bumper which is constructed to withstand the impact of the picker stick without appreciable deterioration and which will last considerably longer than the usual type of bumper.

With the foregoing and other objects in View, the invention will now be more particularly described, reference being had to the accompanying drawing, in which:

Figure l is a side elevation of the lay of a loom showing the bumper in operative position.

Figure 2 is a section on the line 2-2 of Figure 1, and

Figure 3 is a perspective View of the bumper.

Referring to the drawing, the numeral l designates the lay of a loom, the usual race plate longitudinally slotted for the reception of the picker stick, and I2 and I3 the front and back binder plates of the shuttle box. Spaced from the lay is a guide M which forms therewith a slot It for guiding the picker stick It in its forward and rearward movements. The guide M has one end thereof bolted to the lay as at IT,

' and its other end is preferably formed integral with the reduced portion i8 of the quill chute or deflector plate Hi.

The elements thus far described constitute the well-known parts of a Draper loom. In this construction the outer face of the quill chute l9 normally is inclined with respect to the lay with its extreme upper edge 2i! contacting with the inner The quill chute may be secured in operative position in any suitable manner, such as by means of one or more bolts 2| passing through the sword 22 and having their inner ends threaded in suitable sockets in the inner face of the quill chute.

During the operation of the loom, the picker stick it normally moves back and forth in the race guide or slot, and it is usual to provide some means for cushioning the picker stick, particularly as it reaches the limit of its forward stroke. In many prior constructions, it has been the practice to secure the bumper in position by pass- 1935, Serial No. 20,455

ing one or more of the bolts 2| through the body of the bumper. While such an arrangement is effective in securing the bumper in position, nevertheless it is objectionable in that it requires considerable time to dismantle the loom when it is necessary to replace a worn out bumper.

With the present invention this objectionable feature is obviated since the bumper, which I have designed, may be easily and quickly clamped in operative position in a few minutes without the 10 necessity of removing one or more of the bolts and then threading them through the body of the bumper. This bumper, which is designated by the numeral 23, is preferably composed of a plurality of layers or laminations of leather which are glued together to form a compact structure. The bumper comprises a body 24 having a front impact receiving face 25 and

side faces

26 and 21 which are substantially parallel and extend longitudinally of the body. The side face 29 is provided with a laterally projecting shoulder 28 having an upper face 29 extending substantially perpendicular to the face 26 and engageable with the under face 3|! of the lay When the bumper is in operative position. The side face 21 of the 25 bumper is provided with a laterally projecting hooked portion 3| having an under face 32 which is inclined to the face 21 and is adapted to snugly engage the upper edge 33 of the reduced portion 8 of the quill chute when the bumper is installed in operative position. The bottom face 34 of the bumper is preferably straight but the upper face is inclined as at 35 with its lower portion merging into the outer edge of the hook 3|.

Assuming that it is desired to insert a bumper in operative position, the bolts 2| are loosened to permit the quill chute to be moved outwardly. The bumper is then placed in the slot l5 with the flat front face 25 being directed to either the lay or the guide M. The bumper is then moved until it contacts with the portion 36 of the quill chute and is then given a quarter turn so that the hooked portion 3| will slip over and engage the upper edge of the portion |8 of the quill chute. At the same time, the shoulder 28 is moved into engagement with the under face of the lay and bolts 2| are then tightened to clamp the bumper between the lay and the quill chute in this position as clearly shown in Figure 2. It will be observed that the inner face of the quill chute contacts with the side face 21 of the bumper while the inner face of the lay engages the side face 26. Any upward movement of the bumper relative to the loom is prevented by reason of the shoulder 28 engaging the under face 30 of the lay, while 55 any downward movement is prevented by engagement of the hook 3| with the upper edge of portion l8 of the quill chute. The upper inclined edge 35 of the bumper may be so formed that it constitutes a continuation of the upper portion of the quill chute and thus facilitates, and in any event not obstruct, the downward movement of a spent bobbin or shuttle. Furthermore the connecting portion 36 constitutes a back stop for the bumper and cooperates to retain it against longitudinal movement in the slot.

It will be apparent that I have provided a picker stick bumper which may be easily and quickly installed in the picker stick slot of a loom by merely loosening several of the bolts which secure the quill chute or deflector plate in position, and the bumper may be securely clamped in operative position without the necessity of passing one or more of the bolts through the body of the bumper. Furthermore, by reason of presenting the flat face 25 to the picker stick, the continued impact of the picker stick will tend to compress the leather instead of separating it, as would be the case if one of the

sides

26 or 21 were presented to the stick.

I claim:

1. A bumper for picker sticks comprising a body adapted to be positioned within the picker stick slot of a loom and provided with projections, one of said projections being engageable with the lay and the otherbeing engageable with an upper edge of the quill chute of the loom to position the bumper and prevent movement thereof in the slot.

2. A bumper for picker sticks comprising a body adapted to be positioned within the picker stick slot of a loom and provided with lateral projections, one of which is engageable with the under face of the lay and the other engageable with an upper edge of the quill chute to lock the bumper against up and down movement in the slot.

3. A bumper for picker sticks comprising a body adapted to be positioned within the picker stick slot of a loom and provided with lateral projections, one of said projections comprising a shoulder engageable with the under face of the lay and the other projection comprising a hook engageable with an upper edge of the quill chute to lock the bumper against up and down movement in the slot.

4. A bumper for picker sticks adapted to be positioned within the picker stick slot of a loom and comprising a body having longitudinally extending flat side faces, one of which is engageable with the inner face of the lay and the other engageable with the inner face of the quill chute,

said first mentioned side face having a projection engageable with the under face of the lay and said second mentioned face having a hook engageable with an upper edge of the quill chute to lock the bumper against up and down movement in the slot.

5. A brunper for picker sticks adapted to be positioned within the picker stick slot of a loom and comprising a body having longitudinally extending flat side faces, one of which is engageable 10 with the inner face of the lay and the other engageable with the inner face of the quill chute, said first mentioned side face having a shoulder projecting laterally therefrom with its upper face substantially perpendicular to said side face and engageable with the under face of the lay, said second mentioned side face having a laterally projecting hook, the under face of which is inclined to said side face and engageable with an upper edge of the quill chute to lock the bumper against up and down movement in the slot.

6. In combination with a lay having a picker stick race, and quill chute having an inclined portion, a picker stick bumper arranged in said race and having a tapered upper portion presenting an inclined face in substantially flush relation with the inclined portion of the quill chute, and means carried by the bumper for detachably engaging the lay and the quill chute for holding the bumper against up and down movement in the picker stick race.

'7. In combination, a lay, a quill chute having a portion thereof forming with the lay one end of a picker stick race, a picker stick bumper comprising a body positioned within the race and provided with lateral projections engageable with the lay and quill chute to prevent up and down movement thereof in the race, and a common means for securing the quill chute to the lay and for clamping the bumper in the race. 40

8. In combination, a lay, a quill chute inclined with respect to the lay and having a reduced portion forming therewith one end of a picker stick race, said quill chute having an intermediate wall connecting the extreme upper edge of the chute with the upper edge of the reduced portion thereof, a picker stick bumper arranged in said race and abutting the intermediate wall of the quill chute, means carried by the bumper and engaging the lay and the quill chute for locking the bumper against up and down movement in the picker stick race, and a common means for securing the quill chute to the lay and for clamping the bumper in the race.

BROCK ELDER WILLINGHAM.