US1403386A - Stop motion for spinning frames - Google Patents

Description

T. G. BULLARD.

STOP MOTION FOR SPINNING FRAMES.

APPLICATION FILED AUG.22, I919.

Lqtwfiafio Patented Jan. 10,1922.

2 SHEETSSHEET l- H ammo;

T. G. BULLARD.

STOP MOTION FOR SPINNING FRAMES.

APPLICATION FILED AUG-22, 1919.

Patented Jam. 10, 1.922.,

2 SHEETSSHEET 2.

THOMAS GREAN BULLARD, OF ENTERPRISE, ALABAJEA.

STOP MOTION FOR, SPINNING FRAMES.

aaoaaee.

Application filed August 22, 1919.

To an whom it may concern:

Be it known that THOMAS Gm, BULLARD, a citizen of the United States of America, residing at Enterprise, in the county of Coffee and State of Alabama, has invented new and useful Improvements in Stop Mo" tions for Spinning Frames, of which the following is a specification.

The object of the invention is to provide a simple, relatively inexpensive and efiicient apparatus suitable for application to spinning frames of the ordinary and well-known constructions for stopping the machine by shifting the drive belt from the fixed to the loose pulley when the operation of winding the yarn upon the bobbins or quills has been completed quills have been filled, to avoid the overfilling thereof or the superfluous winding of the same, and thus to avoid the disadvantages of overrun bobbins and the loss incident to waste and tangled yarn resulting therefrom, and to this end the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, it being obvious that changes in form and proportion, in adapting the mechanism to spinning frames of different constructions may be resorted to, within the scope of the appended claims without departing from the principles involved. I

In the drawing:

Figure 1 is a plan View of the apparatus applied in the operative position to a spinning frame.

Figure 2 is a detail view of the shipper arm.

Figure 3 is a similar view of the auxiliary shipper rod.

Figure 4; is a similar view of the trigger or latch.

Figure 5 is a similar view of the guide for the auxiliary shipper rod.

Figure 6 is a detail elevational View showing the end of the latch bar and its relation to the ring rail and thread rail.

Figure 7 is a sectional view taken on the plane indicated by the line 7-7 of Figure 6.

Those parts of an ordinary spinning frame in connection with which the stop motion contemplated by the invention cooperates and which are therefore essential to an understanding of the invention are the ring or separator blade rails 10, the thread rail 11, the main or ordinary shipper rod 12 with Specification of Letters Patent.

or when said bobbins or- Patented Jan, 10, 1922,

Serial no. 319,255.

which is connected the belt shifting arm 13 and the fast and loose belt pulleys 14 and 15.

Suitably mounted for sliding movement in hearings in the frame 16 of the machine is an auxiliary shipper rod 17 extending at an intermediate point through a guide 18 which may be supported as indicated, from the thread rail 11 to which it may be secured by a screw 19, and carried by said auxiliary shipper rod is a shipper arm or follower 2O deflected or slotted as at 21 to engage the main shipper rod and contact with a stop 22 thereon, said stop in the construction illustrated consisting of an element of the main shipper rod, namely a coupling 23 which serves to control the position of the stem 2-1 of the belt shifter arm with relation to the body portion of the said shipper rod. It is obvious that any other suitable form of stop may be used in this connection as a means whereby motion of the shipper arm or follower 20 may be communicated to the main shipper rod and hence to the belt shifter arm.

The means for impelling the auxiliary shipper rod in the direction to cause the shifting of the belt consists, in the construction illustrated, of a coil spring 25 in surrounding relation to the auxiliary shipper rod and compressed between the arm 20 and the guide 18, so that the action of the spring is to impel the auxiliary shipper rod in a direction away fromthe trigger or latch bar 26 which is terminally arranged in the path of upward movement of the separator blade or ring rail 10 which normally engages a notch or seat 27 formed 'in the auxiliary shipper rod. That the trigger bar 26 may readily engage with or be readily disengaged from the notch or seat 27, it must be susceptible of movement in a vertical plane and such movement is imparted to it by the rising ring rail in the operation of laying the yarn on the spindles. which support the latch bar are formed with openings 28 whose width is substantially the width of the latch bar and whose height is sufficient to provide a slight upward or vertical movement of the latch bar, pins 29 serving to preclude longitudinal movement of the latch bar and thus ensuring it always being in a position for engagement by the ring rail.

lVhen the mechanism is in operation and 110 yarn is being applied to the bobbins, the belt 4 to imbf course traverses the tight pulley For this reason, the thread rails 11 the cotter cated in dotted lines in Figure 1, the auxiliary shipper rod and its attendant parts being also in the position indicated in the dotted lines in said figure. In such a position, the notch 27 is disposed at a point where it is engaged by the latch bar 26, the latter being maintained in contact with the seat by gravity. In such a position of the parts the spring 25 is under compression and when the bobbins have been filled and the separator blade or ring rail rises on the last beat or stroke of laying the yarn on the quills, it engages the projecting extremities of the latch bar, raising the same from engagement with the notch or seat 27, when the spring 25 is free to act and, through the shipper arm 20, imparts longitudinal movement to the stem 24 of the belt shifter, moving the said shifter to the full line position shown in Figure 1 when the belt is perforce transferred to the loose pulley and the mech anism comes to rest.

It is obvious that an apparatus as described may be readily applied at small cost to any of the ordinary forms of spinning frames, and will serve as a positive means of preventing the overrunning of the bobbins or quills and hence the waste and loss both in the matter of yarn and time incident thereto.

What is claimed is:

1. In a stop motion for spinning frames, the combination of a transversely disposed trigger or latch bar spanning the frame and mounted for slight vertical movement but precluded from longitudinal movement and having its extremities arranged in the path of movement of the ring rails, a belt shifter, and a spring actuated shipper rod operatively engaged with said shifterand pro vided with a seat or notch for engagement by said latehbar.

2. In a stop motion for spinning frames,

the combination' of a transversely disposed of movement of the ring rails, a belt shifter,

an auxiliary shipper rod, operative connections between the auxiliary shipper rod and the belt shifter, and a spring operatively connected with the auxiliary shipper rod and tending to force the belt shifter to .a position guiding the belt .on to the idle or loose pulley of the frame, the auxiliary shipper rod being formed with a notch or seat for engagement by the latchbar to hold the auxiliary rodin a retracted position whereby the belt shifter may be moved to guide the belt on to the tight pulley of the frame, the said latch bar being disengageable from said notch or seat by the ring rails on the upward movement of the latter.

3. In a stop motion for spinning frames. the combination with a transversely disposed latch bar spanning the frame and mounted in holes formed therein and extended in the direction of their length or height to provide for slight upward movement of the latch bar, the latter having means to preclude its longitudinal movement .and having its extremities arranged in the path of move-- ment of the ring rails, a belt shifter, an auxiliary shipper rod, a guide in which said auxiliary shipper rod is slidably mounted,

A a shifter arm carried by said auxiliary shipper rod and operatively engaged with the belt shifter, and a spring compressed between saidguide and said arm, the said spring being in surrounding relation to the auxiliary shipper rod and the latter being formed with a notch or seat for engagement by said latch bar which is released from said notch upon the upward movement of the ring rails as herein shown and specified.

In testimony whereof he affixes his signature.

THOMAS GREAN BULLARD;

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