US2460569A - Brake and tension for warp beamers - Google Patents

Description

Feb. 1, 1949. c. w. BURRUM BRAKE AND TENSION FOR WARP BEAMERS 2 She ets-Sheet 1 Filed Aug. 8, 1946 W E E u 5 M g E 4 M m INVENTOR.

BY ATTORNEY.

Patented Feb. 1, 1949 UNITED STATES 'ATENT GFFICE BRAKE AND TENSION FOR WARP .BEAMERS Charles W. Burrum, Augusta, Ga.

Application August 8, 1946, Serial N0. 639,155

- 7 2 Claims. .1

This invention relates to an improved brake and tension regulating device for use on a long chain beamer. In a mechanism of this kind the warp comes to the long chain beamer in rope form, and the purpose of the beamer is to,

straighten out the ends in the rope warp, separate them on an expansion comb, and wind the ends onto a section beam ready for slashing and other purposes. In order to perform this operation the warp chain must be stretched from the beamer to the tension frame, a distance of about 30 feet, so that the ends will separate gradually from the chain form into a sheet form and not be jerked, twisted and broken.

It is an object of this invention to provide means for applying a retarding action on the drums in the remote tension frame, so that the proper amount of tension will be placed on the warp between the tension drums and the expansion comb through which the warp passes in sheet form.

It is another object of this invention to stop 7 the section beam and the drums of the tension frame at the same instant so that the chain warp will not become slack between the beamer and the tension drums nor will it become too taut. If the yarn becomes too slack, it will fall onto the fioor and become soiled. If it becomes too taut, some of the ends will break.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which- Figure 1 is a side elevation showing the section beam warper and the tension frame;

Figure 2 is a sectional view looking downward and taken along the line 2-2 in Figure 1;

Figure 3 is a sectional view looking downward and taken along the line 3-3 in Figure 1;

Figure 4 is a top plan view of the structure shown in Figure 1, omitting the remote side of the left-hand portion of the mechanism in Figure 1;

Figure 5 is a sectional view looking along the line 5-5 in Figure 4;

Figure 6 is a sectional view taken along the line 6-5 in Figure 1;

Figure 7 is a sectional view taken along the line i-l in the right hand portion of Figure 1.

Referring more specifically to the drawings, the numerals l i and H indicate the end frame members of a tension frame, which has rotatably mounted therein drums l2 and IS. A rope of warp, not shown, enters througha pair of drums I5 and i6 and is passed a plurality of times around the two drums I2 and I3 and then is led to a section beam I! in the section beam warper.

Secured in the frame It are bolts 19 and 2!! on are pivotally mounted levers 2i and 22, lever 2i having a hook 23 around which is hooked one end of a friction band 24, which friction band passes'around the drum I2 and has its other end engaged by a hook 25 on an intermediate portion of lever 25. Likewise lever 22 has a hook 2'! around which is hooked one end of a friction band 28, which passes around drum 5% and is secured to a hook 29 appearing on an intermediate portion of lever 22. Levers 2| and '22 are secured together by suitable links 32 and 33 connected together by a suitable turnbuckle 34.

The lever 22 has a downwardly projecting crank portion 55,, which has secured thereto one end of a wire 33, which wire 36 leads through a suitable pipe 31 lying on the floor of the building, to the section beam frame, to be presently described.

Only one end of the section beam frame is shown, as the other end is similar in that it has a suitable stand for receiving one end of the spindle from the warp beam for allowing rotation of the same relative thereto. Each end of the warp beam has suitable heads -40 thereon, one of which is shown in Figure 4, and the yarn leaving the upper drum 12 in the tension frame passes through a suitable comb, not shown, to convert it from rope form into sheet form, and then it is passed onto the beam H, as has previously been described.

Each end of the beam I! has a projecting spindle M, and in Figure 4, one of these spindles is shown as projecting into a bracket 42 secured on a disc as having a groove 44 in its periphery. The disc 33 is fixedly secured to a rotatable member 45 which is mounted for rotation in suitable upright stand-s 56 and 41, and this rotatable member 45 has an enlarged portion 5i) for receiving a belt for imparting rotation to the member 45 to impart rotation to the disc 43.

In order to impart rotation to the section beam ii, the spindle M has mounted thereon a hook bracket 53 by means of a set screw 54, and this has an inturned prong, which is adapted to fit into a slot 55 in the bracket 42, and bracket 42 is secured to the disc 43 by any suitable means, such as screws 55, which causes'the rotation of rotatable member 55 and disc 43 to transmit rotation to the section beam l1.

Projecting from the upright stand it is a pair of brackets 5i and 58 having bearings in their outer ends in which is mounted a vertically disposed oscillatable shaft 59.

This shaft 59 has fixedly mounted on its upper end a lever '90 which is adapted to rest against a set screw threadably mounted in a bracket 92 fixed on top of stands 49. Fixedly secured on shaft 59 is a collar 65, which has fixed thereto one end of a flexible strap member 66, the other end of the strap member being secured to a cord, such as a rope 61, which fits into the groove 44 in the periphery of disc 43 and passes more than half way therearound, and is then secured to a bracket '19 secured to the bearing portion H of bracket 5%.

Near the lower end of the shaft 59 is secured a collar 13 to which is fixedly secured one end of a flexible strap 14, whose other end is secured to a link 15 which is threaded into one end of a turnbuckle 16, whose other end has threaded there'- into by opposite threads, a link Ti, which in turn is connected at its other end to wire 36.

By adjusting the turnbuckle 19, the amount of braking action on the tension drums l2 and 13 can be adjusted. By adjusting the set screw 91, the amount of braking action applied to the tension drums and also the head #13 can both be ad- .iusted. It is preferable to have the braking action on the tension frame drums slightly greater than that applied to the section beam.

When the operator desiresto stop the apparatus, he swings lever 60 in a clock-wise manner in Figure 4, which increases the braking action on the tension drums l2 and i3 and also on the disk 43. w V

In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a genericv and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. A tension frame comprising a pair of spaced rotatable drums, over which the warp in rope form is drawn to impart rotation to the drums, a pair of levers, each having a short leg and a long leg and being pivotally mounted on the tension frame at the junction of the two legs and adjacent one end of each drum, a link connecting the ends of the long legs of the levers, a brake band 4. associated with each drum and having one end connected to the short leg of the lever and having its other end connected to the long leg of the lever at a point between the pivot point and the free end of the long leg, one of the levers having an arm extending downwardly from its pivot point, a rotatable shaft having a collar secured thereon, a strap having one end secured to the collar, a connection between one end of the strap and to the arm extending downwardly from the pivot point of one of the levers, whereby rotation of the shaft will oscillate the levers on their pivots to cause the brake bands to exert a retarding action on said drums.

2. In a tension frame for a warp beamer provided with two rotatable drums over which the warp in rope form passes to impart rotation to the drums, interconnected brakes for applying a braking action to the drums to impart tension to the warp, a rotatable shaft having a lever thereon andhavin a collar secured thereon, a flexible connectionjbetween the collar and one of the brakes, whereby rotation of the shaft in one directionwill wind the flexible member onto the collar to increase the braking action of the nrakes'on said drums to increase the tension in the warp extending from said drums.

7 CHARLES w. BURRUM.

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

UNITED STATES PATEN'J I'S Bjorge Nov. 17, 1942

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