US1340330A - Shuttle tension - Google Patents

Description

SHUTTLE TENSION. APPLICAHON mu Nov. 11, 1919.

1 ,340,330. Patented May 18, 1920.

-RICHARD E. ENOS, or BALTIMORE, MARYLAND.

SHUTTLE TENSION.

Specification of Letters Patent.

Application filed November 11, 1919. Serial No. 337,349.

To all whom t may concern:

Be it known that I, RICHARD E. ENOS, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented 4certain new and useful Improvements in Shuttle Tensions, of which the following is a specification.

This invention relates to shuttles, for looms, and has for an object to provide a tension of .new and improved type having new and improved means for preventing the derangement of the attained adjustment.

Referring to the accompanying drawing, which is made a part hereof, and on which similar reference characters indicate similar parts,

Figure 1 is a view of the device shown in section in association with a fragment of a shuttle, the shuttle also being broken away,

Fig. 2 is a sectional view taken at right angles to the section'of Fig. 1 as indicated by line 2--2 of Fig. 1, showing also line 1--1 as the plane of Fig. 1, 1'

Fig. 3 is an inverted plan view of a fragment of the shuttle with the tension device positioned therein,

Fig. 4 is a sectional view through the tension mechanism taken on line 4--4 of Fig. 8, and showing the manner in which the tension adjustment is achieved,

Fig. 5 is a perspective view of the tension screw,

Fig. 6 is a perspective view ofthe locking spider, and` o p Fig. 7 is a detail sectional view of a modified type of tension-applying member embodying the same type oftension-exerting mechanism. *Y

The improved tension mechanism which forms the subject matter of this application is employed in conjunction withshuttle tensions of substantially the known and popular types, some ofl such types being indicated at Figs. 1, V2 and 7. The type shown at Figs. 1 and 2 comprises a platelO, having an opening 11 formed therein with 'a bellcrank lever provided at 12, one leg of'which, 13, extends through the opening 1'1, and

engages upon the thread 14, a spring 15v being employed to bear against the leg 16 of the bell-crank lever. The tension of the spring acting upon the leg 13 of the bellcrank lever, holds the thread 14 in tensional engagement with. the column 17. The

ing rib 20, the thread 14 passing through a perforation 21 and outwardly through the delivery eye. The tension-applying member comprises a curved lever 22, pivoted at 25v and bearing upon the plate 19, clamping the thread 14 between such lever 22 and the plate. tension-applying portion'fis also subjected to the spring 15.

The structures just above described are, with slight variations, employed regularly upon shuttles and no invention is claimed in the structures per se, but only in the application of the tension-exerting mechanism thereto.

The column 17 as shown at Figs. 1 and 2, or 17 as shown at Fig. 7 is internally screwthreaded as indicated at 24 and a screw, 25 is inserted within the screw threaded col'-v umn. The screw 25 is provided with a multiangular central opening26 here shown as square, it being understood thatthe exact shape of this opening is unimportant except that it shall correspond to the shank ofthe wrench A which is employed therewith, and which forms apart of the` novel structure. The screw 25 is also provided with cuts 27 extending preferably at right angles diametrically across the screw 25, and with Patented May 18, 1920. 1

The end of the lever opposite theV eoA sol

their planes projected along the axis of the A screw. The formation of the cuts at right angles is not essential to the present invention, but must correspond to the spider 28 employed therewith and proportioned to fit within the cuts 27 with the extremities of the legs extending beyond the periphery of the screw 25. The extended ends of the spider are slidably mounted in furrows 29, being so proportioned that the spider will slide freely within the interior of the column 17 with its legs in the furrows 29; When the spider 28 is in engagement with the furrows 29 and also in engagement withY the cuts 27 of the screws 25, it is obvious that the screw 25 cannot be rotated. The spring 15, normally bearing upon the spider 28, holds the spider in such locking position. To vary the tension, therefore, it is necessary to disconnect the spider from engagement with the cuts 27 of the screw 25 to permit the turning of such screw. This is achieved by inserting the shank of the wrench A into the opening 26 of the screw, lifting the spider 28 out of engagement with the cuts 27 against the tension of the spring l5, as indicated more particularly at Fig. 4;. I'With the spider lifted out of engagement with the screw 25, the screw may be rotated by turning the wrench A, still inserted a suiiicient distance to hold the spider 28 out of engagement with the screw. When sulficient movement of the screw has been effected to accomplish the desired variation of tension, the wrench is withdrawn, permitting the spring l5 to force the spider 28 again back into the cuts 27 of the screw 25, thereby effectually locking the screw 25 against further rotation. It is obvious,

therefore, that no rotation of the screw 25v can be effected except by lifting the spider' 28 out of such engagement with the cuts 27, and this can only be accomplished by the employment of an implement properly proportioned for the purpose as indicated by the wrench A, it being understood of course that. the design of the wrench A is unimportant, the only essential being the insertible shank and the balance of the implement may take any usual and ordinary form for manually operated implements.

The spring l5, therefore, performs a double function: that of applying tensionstress to the tension-applying member, as well as forcing and maintaining the spider in locking engagement with the adjusting screw.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. A shuttle tension comprising a tensionapplying member, a tension-exerting member, a tension-adjusting member, and means actuated by the tension-exerting member to lock the tension-adjusting member against movement.

2. A shuttle tension mechanism comprising a hollow column, a tension-applying member mounted adjacent the column, a' tension-exerting member disposed within the column, a tension-adjusting member disposed within the column, and means interposed between the tension-exerting member and the tension-adjusting member whereby the stress of the tension-exerting member' locks the tension-adjusting member against movement.

3. A tension mechanism for shuttles comprising a hollow column, a tension-applying member mounted adjacent the column, a tension-exerting member mounted within the column in a position to exert stress upon the tension-applying member, a tension-adjusting member mounted within the column, means to apply the tension of the tensionexerting member to lock the tension-adjusting member against movement, and means to simultaneously release the lock and adjust the adjusting member.

4. A shuttle tension mechanism comprising a hollow column, a tension-applying member mounted adjacent the column, a tension-exerting member mounted within the column and positioned to apply stress to the tension-applying mechanism, a movable tension-adjusting member in engagement with the tension-exerting member, means interposed between the tension-exerting member and the tension-adjusting member for locking the tension-adjusting member against movement, and means operating against the tension of the tension-exerting member to release the lock to facilitate the movement of the tension-adjusting member.

5. A tension mechanism forshuttles comprising a hollow column, a tension-applying member mounted adjacent the column, a spring positioned within the column and bearing against the tension-applying member, an adjusting screw rotatable within the column and bearing against the spring, and a lock actuated by the spring adapted to lock the screw against rotation.

6. A shuttle tension mechanism comprising a hollow column, a tension-applying member mounted adjacent the column, a spring positioned within the column and bearing at one end against the tension-applying member, an adjusting screw inserted within the column and bearing against the spring, a locking member interposed between the spring and screw and adaptedunder the tension of the spring to lock the screw against rotation, and means to simultaneously releasel the lock against the tension of the spring and rotate the screw.

7. A tension mechanism for shuttles comprising a hollow column internally screwthreaded and provided with longitudinal furrows, a tension-applying member mounted adjacent the column, a spring positioned within the column and exerting stress against the tension-applying member, a screw engaging the screw threads of the column, a spider engaging the longitudinal furrows of the column and interposed between the screw and the spring, said screw being provided with means for engagement with the spider to prevent rotation of the screw, and means to lift. the spider out of engagement. with the screw against the tension of the spring and rotate the screw.

8. A tension mechanism for shuttles comprising a hollow column internally screwthreaded and provided with longitudinal furrows, a tension-applying member mounted adjacent to the column, a spring inserted with the hollow column and exerting stress against the tension-applying member, an externally threaded member having a multiangular axial opening therethrough inserted within and engaging the internal threads of the column, a locking member engaging the longitudinal furrows and subjected to the tension of the spring, and means carried by the threaded member for engagement with the locking member.

9. A tension mechanism `for shuttles comprising a hollow column internally screwthreaded, and provided with longitudinal urrows transecting the threads, a tensionapplying member mounted adjacent the column, a spring disposed within the column and exerting stress against the tension-applying member, a screw member inserted within the screw threaded column, and hav- 2 ing a multiangular axial opening and diametrical cuts in one end, a spider having radially extending legs slidable Within the furrows and employing the tension of the spring to force the spider into engagement with the cuts of the screw, and an implement fitting the multiangular opening of the screw adapted to be inserted through such opening and lift the spider out of engagement with the cuts, facilitating .the turning of the screw by manipulating the implement.

In witness whereof, I have hereunto set my.hand and seal at Baltimore, Md., this 8th day of November, A. D. nineteen hundred and nineteen.

RICHARD E. ENOS. [11. s]

fitnesses JOSEPH F. WILSON,

D. D. TOWERS.

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