US749290A - Racer for braiding-machines - Google Patents

Description

No. 749,290. PATENTED JAN. 4,2, 1904.'

0. W. HASSLER.

RACER FOR BRAIDING MACHINES.

APPLICATION FILED AUG. 15, 1902.

m) MODEL.

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' UNITED STATES Patented January 12, 1904.

PATENT OFFICE.

CHARLES W. HA SSLER, WESTFIELD, MASSACHUSETTS.

, RACER.FOR'BRAIDING-MACHINES.

SPECIFICATION formirig pa rt of Letters Patent No. 749,290, dated January 12, 1904.

Application filed in usi 15, 1902.

To all whom it may concern:

Be it known that I, CHARLES W. HASSLER, a citizen of the United States of America, residing in Westfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Racers for Braiding- Machines for the Braiding of VVhipLashes,

" Whips, &c., of which the following is a specification. a

foot a, shank 6, guide 0, plate d, and reel or spool g areemployed. Atension-wheel, pref erably comprising the parts h, h, and z, is

mounted upon a post f, the latter being mounted onthe plate cl. A resilient brake comprising a tension-spring m is arranged to bear against the periphery of the tensionwheel at one side ofthe portion of said tension-wheel which is engaged by the strand, and I prefer that this portion of thespringm be provided with a cover or shoe 1), which may be renewed when required. The intermediate portlon of the springm bears against a post '6, and the end portion of thespringopposite that which .bears upon the tensiona wheel is in engagement with adjusting means,

so that it may be moved and cause the head of the spring to bear with greater or less pressure againstthe periphery of, the tensionwheel, as may be desired, so as to regulate the forcerequired torotate thetension-wheel. The, adjusting means illustrated in the drawingscompriscs athreaded rod In, having a head or upset part k in engagement with the free endhportion of the brake-spring m, the rod In ,beingarrangedto pass through a post and having a nut 0 in threaded engagement with Serial No. 119,766. (No model.)

i the rod. It will therefore be readily seen that the turning of the nut 0 on the rod is will causethe head of the brake-spring m to bear with greater or less force upon the periphery of the tension-wheel, depending upon the direction in which the nut 0 is rotated. To prevent accidental disarrangement of the tension during the operation of the machine and as a convenient means to lock the nut in position, I provide a recess in the post j, adapted to receive the nut, the recess being so shaped as to prevent the rotation of the nut while it is to produce such revolution of the tensionwheel. The portion of the tension-wheel which receives the strand should be roughened'or serrated in order to give the best result, andI prefer that these teeth be in the form commonly termed ratchet-teeth and be sufficiently sharp at their edges to efi ectively prevent slipping of the strand, yet they should not be so sharp as to cut or in any manner injure the strand. I prefer also that the central portion z'of the tension-wheel be of less diameter than the side portions, this being a convenient means of maintaining the strand in the desired position on the tension- Wheel and preventing its accidental movement laterally from the desired position. It will be observed that by this arrangement of tension device the regulation of the tension is not dependent upon the degree of pressure placed upon the strand itself, but is dependent solely upon the degree of pressure exerted between the head of the resilient tensionspring brake and the periphery of the tension-wheel against which the head bears. 1 attain the best result by carrying the strand almost completely around the tension-wheel, although a like result might be attained if the strand passeibaround the tension-wheel to a greater or less exitentflt being necessary, however, in all cases that the strand should bear against the peripheryor be wrapped around the tension-wheel a suflicient distance to cause said wheel to rotate as the strand is drawn out, and thus the restrained tension-wheel will exert the necessary restraining effect upon the strand in its passage to produce the desired tension.

For convenience in some instances I employ a guide-post e, which receives the strand after it leaves the tension-wheel, and its position with reference to the tension-wheel will govern to some extent the amount of wrap of the strand around the tension-wheel. In the illustration I have shown it so arranged that the strand is guided away from the tensionwheel after the strand has passed almost around the latter. The tension device is, however, operative without the employment of the guide-post e. To prevent the strand from accidentally moving laterally off the end of the guide-post e, I provide the guide-post with a pin 02'.

In order to prevent the accidental slipping of the strand or thread upon the periphery of the tension-wheel, thus destroying the tension, I provide means for holding the strand taut to a limited extent. This may be accomplished in various ways, and any means which will prevent such slipping will be sufficient to put the tension-wheel in operation and utilize the benefits of my invention. A convenient device to prevent such slipping comprises a post 6, over which the strand or thread passes, and

a latch pivotally mounted on the plate and bearing towardsaid pin, so as to bear against the strand with the desired pressure. for to hold this latch in its bearing position by the employment of a spring a, one end of which is attached to the lug c on head 8 of the latch and the opposite end toa bolt Z, having a threaded portion which passes through the post j and is provided with a nut 0, resting within a recess similar to that before described with reference to the nut 0. The latch may be provided with a finger-piece t to render it more convenient to turn it'upon its pivot r out of position and, if desired, throw it entirely away from the post 6, as indicated in dottedlines in Fig. 2. In adjusting the device to give the desired tension the pressure of the latch against the strand should be only sufiicient to prevent the strand slipping on the periphery of the tension-wheel, as a greater degree of pressure of the latch against the strand will tend to render the tension uneven, variable, and unreliable. Insome instances it is convenient to-throw the latch completely out of the way, and for this purpose the latch may be pivoted to the plate, as shown in the drawings, to permit it to be turned away from the .post 6 to the position shown in dotted lines in Fig. 2, and the spring uwill then hold the latch permanently away from the post 6.

The tension-wheel preferably comprises a construction having a serrated central portion t' and two side portions it h and is mounted I pre-' on a post f. The reel g for holding the supply of material to be braided is supported on a post f. I

I prefer that the spring-brake m be fastened to the post 6 loosely by a pin or rivet n and that the post 0 be provided with a pin on to prevent the accidental displacement of the strand.

The preferred form of latch comprises a base portion q, having a head 8, although, as will readily be seen, any other form of latch, whether pivoted or otherwise, will serve the purpose, provided it hold the strand sufficiently to prevent slipping of the strand on the tension-wheel. In the drawings the strand is indicated by the letter w. The letter 2 indicates the dotted-line position of the latch when it is opened completely away from the post a and held in such opened position by the action of the coil-spring to.

Having therefore described my invention, whatI claim, and desire to secure by Letters Patent, is

1. In a racer for braiding-machines, a tension device comprising a supporting part, a rotating tension-wheel supported thereby, and a resilient brake arranged in frictional contact with the periphery of said tension-wheel.

2. In a racer for braiding-machines, a tension device comprising a supporting part, a latch mounted thereon, a stop fixed in the path of said latch, means to force said latch toward said stop, a revolving tension-wheel, and a resilient brake arranged to bear against the periphery of said tension-wheel.

3. In a racer for braiding-machines, a tension device comprising a supporting-plate, a revolving tension-wheel mounted thereon, a resilient brake arranged to bear directly on the periphery of said tension-wheel to retard its motion, and adjusting means for changing the extent of pressure of the brake against the periphery of the tension-wheel.

4. In a racer for braiding-machines, the combination of a suitable supporting-plate, a reel mounted thereon, a rotating tensionwheel, a resilient brake bearing at one end in frictional contact with the periphery of said tension-wheel, a post 6 mounted on the plate at a point between the ends of said spring and with the spring bearing against the post and means to hold the free end of the spring in position, substantially as shown.

5. Ina racer for braiding-machines, a tensiondevice comprising a rotating tensionwheel having its intermediate portion serrated or roughened and the portions at each side thereof of larger diameter than the central portion, and a resilient brake, bearing against the periphery of one of said larger portions of said tension-wheel, and means to regulate the pressure of said brake againstsaid periphery. r 1

6. In a racer for braiding machines, the combination of a suitable supporting-plate, a

rotating tension-wheel mounted thereon, a resilient brake arranged in frictional contact with the periphery of said tension-wheel,

means to regulate the pressure of said brake against said tension-wheel, and means to hold the strand taut with suificient force to prevent its slipping on the periphery of the tension-wheel. y

7. The combination in a racer for braiding- Inachines, of a suitable supporting-plate, a rotating tension-wheel, a resilient brake bearing with direct frictional contact against the periphery of said tension-wheel, a stop-post e, a latch bearing toward the same, a spring adapted to force the latch in the direction of 5 the post, said latch being arranged to be turned completely away from the post and held therefrom by said spring, substantially as shown.

In testimony whereof I have signed my 20 name to this specification in the presence of two subscnbmg witnesses.

CHARLES W. HASSLER. Witnesses:

S. S. TAFT, F. A. CUTTER.

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