US1443980A - Attachment for spinning and twisting frames - Google Patents

Description

Feb. 6, 1923. I 1,443,980

J. DYSON. ATTACHMENT Fo R SPINNING AND TWISTING FRAMES.

FILED Nov. 7, 1919.

Patented Feb. 6 1923.

JOHN DYSON, or DRACUT, MASSACHUSETTS, ASSIGNOR To GEORGE M. ARRAGG, or

LAWRENCE, MASSACHUSETTS.

ATTACHMENT FOR SPINNING AND TWISTING FRAMES.

-App1ication filed November 7, 1919. Serial No. 336,272. v

1 0 all whom it may concern:

Be it known that 1, JOHN DYSON, a citizen of Great Britain, residing at Dracut,

in the county of Middlesex and State of Massachusetts, haveinvented certain new and useful Improvements in Attachments for Spinning and Twisting Frames, of

which the following is a specification.

This invention relates to lifter motions for spinning frames, especially cap spinning frames. V

In such frames, as now made, part of the lifter mechansm comprises a revoluble shaft which terminates in a screw which revolves with a sleeve slidable on the shaft carried in hearings in the frame. When the bobbins are filled, the lifter mechanism should be in position so that the bobbin rail is down while doifing goes on, after which the sleeve which carries a hand wheel is pulled out to disengage it from the driving gear, and the lifter and. rail are forced up by hand. After this is done, the parts are reset and should be locked in posltion by means of suitable locks. Frequently, however, the operative forgets to lock the parts,vand when the machine starts, the sleeve, with its gear, disengages from the driving gear, with the result that the bobbin rail drops, breaking all the'ends and causing other damage.

This invention consists of a spring so placed that the gears will automatically en.- gage, thereby dispensing with the locking mechanism. r

In the drawings, Fig. 1 is an elevation from the "front of a cap Spinning frame showing the mechanism at one end, to which my invention is applicable.

Fig. 2 is a section on line 22 of Fig. 1 showing some of the parts. 4

Fig, 3 is an elevation of my Spring'removed from the machine, and Fig. 419 an end view of Fig. 3. 4

Fig. 5 is an elevation, partlyin section, showing another form of sprin and Fig; 6 is a section from the right on the line 6-6' of Fig. 5. r v

Fig. 7 is an elevation of another modified form of spring. Figs. 8'and 9 Show other forms of springs.

In the drawings, A. represents the frame of a cap spinnin machine having a stationary, spindle rail B which supports spindles 10 carrying caps 9, and C is a bobbin is represented by the bearing 23.

This lifter mechanism includesvvertical.

rods 12 which carry rail C, and are moved up and down by means of chains, such as 13, which run over pulleys 14' and 15 and are attached to a chain bar, such as 16, which has a vertlical end at 17 against which bears the end of a screw 20.

The lifter shaft F terminates in screw 20 which passes through a relatively stationary bearing 22 and extends out through a Sleeve 30 carried in bearings 23 fixed to the frame A of the machine.

This sleeve 30 is shown as carrying a collar 31 at the inner end and another collar 32 just outside the bearing 33, as well as collar gear K and hand wheel P. A suitable spline 8 fixed inside sleeve 30 rests in a groove 8 in lshai't F, whereby sleeve 30, with collars 31 and 32, gear K and hand wheel P, all of which are fastened together, are slidable on shaft F and revoluble there-v with.

The driving gear H normally engages sleeve gear K, as shown in Figs. 1 and 2. When it is desired toraise rail C by hand, wheel-t1 and the other parts carried by sleeve 30 are pulled out by hand to the 1, whereby gear K is freed from gear H and and the Shaft F can be revolved to reset the parts. 7

Ordinarily a lock, such as shown at R in Fig. 2, which is practically a grav ty latch pivoted at40 adapted to be dropped down outside of collar 32 or to be thrown back against a-Stop pin 41, is used for looking the parts in osition. This is to prevent gears H and from jarring apart, for

if they do separate, the bobbin rail 0 drops and the ends break.

e/This invention consists of a spring, such as L, preferably ,of the helical compression 100 type, coiled around the sleeve 30 between 4 position shown in the dotted lines in Fig.

collar 31 and that part of frame -A-which.

This springiL so on ages the collar and frame as to e normally in engagement and to engage them if the o erator forgets to Set the lock R.

epthe s eeve gear and driving gear '105 I pre er'to use a spring, such as shown in Figs. 3 and 4, wherein the ends 60 are turned back 'upon themselves at right angles pense with the lock entirely, and instead of having a spring which bears against the collar 31, I may use a bowed spring, such as M, having ears 50 at one end attached by screws 51 to the frame, and extending thence downward at 53, terminating in -a fork 54 which embraces sleeve 30'just outside of collar 32. It is manifest that when the parts are moved out, disengagi gears K and H, spring M'will be pulled out to the dotted line position, but will resume itsnormal position as soonas the parts are released. In-Fig. 5, K and 32 are integral and, together with hand wheel I, are sweated, brazed, or otherwise fixed to sleeve 30.

Fig. '7 shows a spring S which is not bent,

around at the ends, but which may be made large enough so that it can be wound in on sleeve 30 or unwound therefrom by working in one end and, screwing it on.

As shown in Fig. 8 at D, I may use a hat wire coiled spring in place of L or S,

or I may use'a round wire spring G shown In perspective in Fig. 9 havin a loop 70 for attaching it to frame A, a b a loop 72 to extend around sleeve 30 and rest behind collar 32.

Springs such as L, S or D may be used with a lock such as R or springs such as M or G in place thereof, and they may bear against any suitable collar such as 31 or 32 fixed tosleeve 30. v

It is manifest that my invention may also be used on a twisiting frame or other machine having a revoluble and slidable gear such as K.

I claim:

1. The combination with a spinning machine having a frame, a movable bobbin rail and mechanism for raising and lowering such rail including a revoluble shaft which terminatesin a. screw, a sleeve revoluble with and slidable on said shaft, a driving gear, a sleeve gear revoluble with the sleeve. in poow 71 and.

and mechanism for raising and lowering such ralil including a revoluble shaft which terminates in a screw, a sleeve revoluble with and slidable on said shaft, a driving gear, a sleeve gear revoluble with the-sleeve in position to engage and disengage said driving gear as the sleeve is Sllid. along said shaft, and a collar carried by said sleeve, of a spring which so engages the collar and frame of the machine as to keep the sleeve gear and driving gear normally in engagement.

3. The combination with a machine having a frame, a movable bobbin rail and mechaniism for raising and lowering such rail including a revoluble'shaft Which terminates in a screw, a driving gear, and a gear revoluble with and slidable on said shaft inposition to engage and disengage said driving gear as it is slid along said shaft, of a spring which so engages the gear and frame of the machine as to keep the gear and driving gear. normally in engagement. X

4. The combination with a cap spinning frame having a movable bobbin rail and mechanism for raising and lowering such rail including a revolu ble mainshaft which terminates in a screw, of a sleeve revoluble with and slidable on Stud 1113,11 shaft, a drivng gear, a sleeve gear revolublewith the sleeve in position to engage and disengage said driving gear as the sleeveis slid along said shaft, a collar carried by said sleeve, and a spring coiled around such sleeve which so engages the collar and frame of the machine as to keep the sleeve gear and driving gear normally in engagement.

'" In tesflimony whereof I have afiixed my signature.

JOHN D YSON.

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