US2431134A - Adjustable swing bracket - Google Patents

Description

i atented Nov. 18, 1947 2,431,134 ADJUSTABLE SWING BRACKET Eugene F. Monnia, Scranton, Pa., assignor to Selectronics, Inc., Carlisle, Pa., a corporation of Delaware Application April 15, 1946, Serial n-ojeeafzis' 2 Claims.

My invention... relates broadly to spinning machinery and more particularly to an improved construction of spindle bracket for use in machines for spinning cotton, silk, synthetic textiles, and fabrics generally.

One of the objects of my invention is to provide an improved construction of swing bracket for spinning machines having means for accurately adjusting the position of the spindle with respect to the swing bracket.

Another object of my invention is to provide a construction of screw adjustment means for spindle swing brackets for spinning machines.

A further object of my invention is to provide a construction of pivot adjustment means for spindle swing brackets having means for raising or lowering the assembly, and means for locking the assembly in a, predetermined position for accurately feeding a textile thread to the spinning machinery.

Other and further objects of my invention reside in an improved construction of spindle swing bracket for spinning machinery adjustable for operation in a predetermined horizontal plane, as set forth more fully in the specification hereinafter following by reference to the accompanying drawings, in which:

Figure 1 is a side elevational view of the adjustable swing bracketof my invention shown in operative position for supporting a bobbin; Fig. 2 is a vertical sectional view through the adjustable swing bracket and illustrating the adjustable bearing members whichmay be raised or lowered for adjusting the position of the bobbin while in operation, the view being taken on line 2--2 of Fig. 3; Fig. 3 is a horizontal sectional view taken on line 3--3 of Fig. 2; and Fig. 4 is a horizontal sectional view taken on line 4-4 of Fig. 2.

In ring spinning machinery it is not unusual to drive bolsters at rates of the order of 6000 revolutions per minute. It is extremely important that the winding of the textile on the bobbins be maintained uniform. In a multiple row of bobbins the accidental piling up of textile thread in any concentrated position on the bobbin may interfere with the high speed operation of the spinning machine and may result in breakdown of the mechanism. Piling up of the thread also causes considerable waste of valuable yarn and difficulty in the twisting operation which follows. I have devised a construction of swing bracket for supporting high speed spindles wherein adjustment of the bracket may be made during the high speed operation of the spinning mechanism for so centering the bobbins that pile-up is avoided.

2 The adjusting means of my invention has been found to be extremely simple in manufacture and production and very effective in operation for improving the efficiency and safety of the spindle mechanism.

Referring to the drawings in detail, reference character I designates a bed rail on which the bracket of my invention is mounted with respect to the spinning machine. The bed rail is shown adjacent the transverse rail 2 of the spinning machine for supporting the spindle whorl 3 on the shock-absorbing member 4 carried by the swinging bracket 5. The swinging bracket 5 is adjustably supported by the spindle bracket shown at 6 having the vertical web portion 1' offset at the top and bottom as at 8 and 9. The oiTset portions 3 and 9 constitute arms on the spindle bracket 6 between which the swinging bracket 5 operates. The swinging bracket 5 is integrally connected with a collar portion I0 which serves as a sleeve for receiving the bushing member II, The bushing member II may be formed in one part or two parts from lubricant containing metal. The bushing II is provided with recesses I2 and I4 in opposite ends thereof for receiving the adjustable pivot members I5 and I6 which are introduced in the same axial line from opposite ends of the bracket 6. The pivot members I5 and I6 are formed from wear-resisting metal conically shaped on the end thereof and entering correspondingly shaped recesses I2 and K4 in the bushing II for journaling the bushing I I in opposed bearings.

The pivot member I5 is adjustably secured in the arm 8 of the bracket by means of adjustable set screw I! as shown more clearly in Fig. 4. One side of the adjustable pivot member I5 is fiattened as represented at I 5a to enable set screw I! to be secured in locked position thereagainst and maintained in selected position by lock nut I8.

The pivot member I6 has an elongated shank I9 depending therefrom, a portion of which is smooth-walled as indicated at 20, and another portion of which is screw-threaded as represented at 2I. The shank I9 terminates in a tool-engaging head 22 which projects beyond the lower externally and internally screw-threaded bushing 23 integrally connected with the bracket 6. The external screw-threads 24 on the bushing 23 enable the bracket to be screw-threaded into corresponding screw-threaded recessse 25 in the bed rail I of the spinning machine. The external screw threads 2| on shank I9 are also engaged by a lock nut 26 which enables the pivot member I6 to be set in a position to which a pivot member may be adjusted.

The spindle bracket is biased in. a predetermined angular position by means of coil spring 21 having one end 28 thereof looped into a recess 29 of web 1 of the spindle bracket, and the other end thereof latched into recess 30 in the swing bracket 5. The spring 21 exerts tension on the swing bracket 5 for maintaining the spindle drive contact with the driving band of the spinning machine receiving apparatus.

The spindle whorl 3 is shown supporting the bobbin 3| with the spindle blade projecting through the top thereof as represented at 3a. The lower flange of the bobbin 3| is shown substan-' tially registering with ring member 32 supported on the traverse bed rail 2 around which slides the wired guide member 33 through which the textile thread 34 is guided.

The adjustable swing bracket of my invention may be adjusted upwardly or downwardly while the spinning mechanism is in operation and without interrupting the high speed. The lock nut 26 is loosened by means of a suitable wrench, allowing head 22 of the shank IQ of pivot member Hi to be turned clockwise or counterclockwise for revolving screw threads 21 within the internal screw threads in the bushing 23 for raising or lowering pivot member It. If the operation requires the lowering of the swing bracket 5, the set screw I1 is loosened and pressure applied against the projecting anvil-like end [5a of pivot member i5 while pivot member I6 is revolved counterclockwise for lowering the plane of operation of the swing bracket 5. If the swing bracket 5 is to be elevated, set screw I1 is loosened sufiiciently to allow pivot member I 5 to be forced upwardly as pivot member I6 is revolved clockwise for raising the swing bracket 5. A tolerance of approximately one-quarter inch is allowed for efieoting the adjustment in the operating plane of the swing bracket 5 for controlling the distribution of the textile thread with respect to the bobbin during the high speed operation thereof. By providing micrometer threads between the depending bushing 23 and the depending shank l9, the accuracy of the required adjustment can be considerably improved. Where large numbers of high-speed operating spindles are in operation the importance of my invention can be appreciated in that textile pile-ups are reduced or eliminated by adjustments to any one of the highspeed spindles without time-consuming and lossresulting shut downs of the spinning machine.

While I have described my invention in one of its preferred embodiments, I realize that modifications in the detailed construction of the swing bracket of my invention may be made and I desire that it be understood that no limitations upon my invention are intended other than may be imposed by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. A spindle bolster support for ring spinning machines comprising a bracket having a pair of spaced substantially parallel extending arms and a depending screw-threaded bushing engageable with the screw-threaded bed rail of a spinning machine, the bushing of said bracket being internally screw-threaded, a lower pivot pin bearing passing through said bushing and including a centrally screw-threaded shank, a tool-engaging head and a locking device, the screw-threaded shank of said lower pivot pin member engaging the internal screw threads in said bushing for facilitating the adjustment of said lower pivot pin bearing through one of the arms of said bracket, an upper pivot pin bearing extending through the other arm of said bracket, means for adjustably securing said last-mentioned upper pivot pin bearing with respect to said bracket, and a swing bracket journaled between said pin bearings and adjustable for transverse operation in a predetermined plane according to the adjustment of the positions of said pin bearings.

2. A spindle bolster support for ring spinning machines comprising a bracket having a screwthreaded bushing adapted to be screw-threaded into a spinning machine bed rail and provided with upper and lower substantially parallel extending arms, said bushing being internally screwthreaded throughout a portion of its length and smooth-walled throughout another portion of its length, a lower pivot pin bearing extending through the smooth-walled portion of said bushing and having a screw-threaded shank engaging the internal screw threads in said bushing and having a tool-engaging end projecting beyond the end of said bushing, locking means engaging the screw threads on said shank and operative to eiiect locking engagement between said lower pivot pin bearing and said bushing, an upper pivot pin bearing adjustably mounted in the upper arm of said bracket and having an anvil head projectable therethrough, and a swing bracket pivotally mounted between said adjustable pivot pin bearing and adjustable for operation in a predetermined transverse plane with respect to said bracket.

EUGENE F. MONNIA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,200,700 Monnia et a1. May 14, 1940 FOREIGN PATENTS Number Country Date 453,945 Great Britain Sept. 22, 1936

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