US585746A - Brush-holder - Google Patents

Description

(No Model) H. GEISENHONER.

BRUSH HOLDER.

No. 585,746 Patented July 6,1897.

WITNESSES- INVEN U 9. fi

UNITED STATES PATENT OFFICE.

HENRY GEISENIIGNER, OF SCHENEGTADY, NEW YORK, ASSIGNOR TO THE GENERAL ELECTRIC COMPANY, OF NEIV YORK.

BRUSH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 585,746, dated July 6, 1897.

Application filed November 20, 1896. Serial No. 612,850. (No model.)

To aZZ whom it may concern: clamp 8, adapted to bear against the end of Be it known that I, HENRY GEIsENHoNER, said holder 2. The carbon brushes 6 are each a citizen of the United States, residing at mounted in asupporting-piece 12, connected Schenectady, in the county of Schenectady, by arms 13 to clamping-jaws 14, gripping the 5 State of New York, have invented certain stud 4L, and secured thereto by a screw 15, new and useful Improvements in Brush-Holdhaving wings 16, by means of which the jaws ers, (Case No. 483,) of which the following is 14 may be tightened together by a spannera specification. wrench or other suitable tool.

This invention relates to brush-holders for The carbon brush 6 is mounted in the sup- IO dynamo-electric machines, and has especial porting-piece 12 so as to be freely movable reference to holding in a fixed position the vertically therein. Upon the top of the carstud on which the brush-holders are mountbon brush 6 rests the outer end of the springed and to releasing the stud, so that it may arm 17, having secured thereto a curved arm be rotated in its support. 18, having its outer end bearing against the 15 The invention has for its object to hold outer end of the spring-arm 17. The presfrom rotation in a fixed position a brushsure of the carbon brush 6 against the com holder stud and prevent it from turning, and mutator 7 is adjusted by means of the thumbalso to permit of its being released to rotate screw 19, extending through and connecting in its support when it is desired to swing the the jaws 14. As shown, the clamp Sis mount- 2o brush-holders into and out of operative posied on the end of each arm 3 of the support tion. ing-frame 2, and from one end of the stud 4:

In the accompanying drawings, Figurel is extends the lead to the minus pole, as shown a detail view of a portion of a dynamo-elecat the right in Fig. 1, and a lead to the plus trio machine, showing carbon-brush holders pole, as shown at the left in Fig. 1.

2 5 with the invention applied. Fig. 2 is an en- After the carbon-brush holders5 are mountlarged detail side view of one of the brushed and adjusted in suitable position on the holders and its support shown in Fig. 1. Fig. stud 4 the latter is rigidly secured in posi- 3 is a front view of the same, and Fig. 4. is tion by tightening the set-screws 11 against an enlarged detail view of a portion of the the end of each arm 3 of the frame 2, thus o brush-holder support and stud and clamp sedrawing the Wings 10 outwardly against the securing the stud from turning. stud 4L and rigidly holding the stud 4 in po- 1 indicates a portion of the frame of a dysition. By means of this construction after namo-electric machinehaving mounted therethe carbon brushes have been mounted and on, as shown in Fig. 1, a couple of supportadjusted in the desired position relatively to 5 ing-frames 2, shown in Fig. 3 as consisting the commutator they are securelyheld in such of two diverging arms 3, having mounted in position by tightening the clamps 8, as set their lower ends the rotatable cylindrical forth. The advantage of this construction is stud 4, on which are mounted three carbonas follows: In addition to firmly holding the brush holders 5, each carrying a carbon brush stud from rotation when the brushes are in 0 40 6, bearing against the commutator 7. operative position, when it is desired to turn 8 is a clamp (shown specially in Fig. 4) the brush-holders out of position the clamps which is composed of a piece of metal formed 8 may be released, thereby permitting the with the middle portion 9 and rearwardlystud at to be rotated and the brush-holders to extending wings 10, perforated to permit the be lifted out of operative position; or in- 5 5 stud 1 to be slid through the wings 10. The stead of releasing the clamps 8 a single brushmiddle portion 9 of the clamp 8 when placed holder may be released individually and in position abuts against the lower projectturned back on the stud without affecting the ing end of arm 3 of the holder 2, and the other brush-holders. wings 10 project upon each side of and hear I claim- 50 against the sides of said arm 3. 11 are set- 1. In a carbon-brush holder, a rotatable screws mounted in the middle portion 9 of stud, one or more brush-holders adapted to be rotated 011 and adjustably held in fixed position on said stud, and means for adjustably clamping and holding in fixed position said stud, as set forth.

2. In a carbon-brush holder, a rotatable stud, one or more brush-holders adapted to be swung on said stud and adjustably held in fixed position, a clamp engaging the stud, and means for tightening the clamp and stud in its bearings and holding the latter from rotating, as set forth.

3. In a carbon-brush holder, supportingarms, a rotatable stud mounted on and adapted to rotate in said arms,brush-holders mounted upon and adapted to swing independently on and be secured in fixed position on said stud, clamps engaging the said stud-supporting arms, and means for clamping and adjustablyholding the stud in fixed position in its bearings, as set forth.

I. In a brush-holder, a main support, arotata'ble stud mounted in said main support, brush-holders mounted 011 said stud and adapted to independently swing thereon, with means for adjustably holding them in fixed position on said stud, clamps engaging the main support and the stud, and set-screws for drawing and tightening the clamps and stud into fixed position on the main support, as set forth.

In witness whereof I have hereunto set my hand this 0th day of November, 1816.

HENRY GEISENI-IONER.

Witnesses:

B. B. IIULL, J. LE D. LANGDON.

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