US1568920A - Balance grinding wheel - Google Patents

Description

Jan. 5 1926. 1,568,920

M. O. REEVES BALANCE GRINDING WHEEL Original Filed July 14, 1922 2 Sheets-Sheet 1 INVENTOR J/z'lion 0. 66 W5,

ATTORNEY Jan. 5,1926. I 1,568,920

I M. O. REEVES BALANCE GRINDING WHEEL Driginal Filed y 14, 1922 2 Sheets-Sheet 2 INVENTOR J/ilt gn 0.1396065;

RNEY

' thereto;

Patented Jan. 5,

outrun TAT issza MILTON O. REEVES, OF COLUMBUS, INDIANA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE HEIM', GRIEDER COMPANY, OF DANBURY, CONNECTICUT, A CQEPQEATICH? OF CONNECTICUT.

nannies enmnme WHEEL.

originalapplication filed July 14, 1922, Serial No. 5743730 Divided and this application flledl January 11, 1923. Serial No. ($11,947.

To all whom it may concern:

Be it known that I, MILTON O. Rnnvns,

a citizen of the United States, residing at- Columbus, in the county of Bartholomew provide a support for the arbor of grinding wheels on which the arbor may be placed and the wheel be permitted to automatically.

roll until its heavy side is down, whereby the unbalanced point of the wheel may be readily ascertained and proper balance given tothe wheel.

My invention is particularly applicable for usein connection with the wheel balancing means shown in my co-pending lalp- 'plication filed July 14 1922, Serial 0. 574,873, of which appllcation thls presentap lication is a division.

For the purpose of disclosing my lnvention I have illustrated one embodiment thereof in the accompanying drawings in which, a Fig. 1 is a perspective view of the Reeves centerless grinder which is well known on the market, having my invention applied Fig. 2 is a perspective view of a fraginentary portion of the base of said machine equipped with my invention and showing the grinder element in position to balance or re-balance;

Fig. 3 is a side elevation of one of the balancingways of my invention designed as an attachment to. existing grinding machines;

Fig.4 is an, end elevation thereof, and Fig. 5 is a plan thereof.

As illustrated in the drawings the type of grinding machine'with which my invention is shown as being associated includes a base 10 upon which is mounted a horizontally adjustable carriage 11 carrying the grinding wheel 12 which cooperates with the feed wheel 13 and work supporting bar 14 to automatically rotate, axially advance, and grind articles placed in the grinding throat upon the bar 14. The feed wheel 13 is mounted to rotate upon a horizontal axis substantially at right angles to the axis of the grinding wheel 12 and is carried by a vertically adjustable carriage 15 mounted on suitable ways on the base 10. The above machines of this type are generally artificial compositions and for mounting the wheels are provided with an axial bore. A sleeve extends through this'bore being provided at one end with an annular flan e 19 and at its opposite end with a spline collar arranged in opposition to the flange 19, the flange and collar being provided with annular shoulders which fit within the central bore of the wheel 12. The wheel 12 is clamped firmly between the. flange 19 and itscooperating collar by means of a nut threaded upon-the end of the sleeve. This sleeve is provided with a tapering axial bore which is ada ted to receive the axially t'apering hub 0 an arbor 33.

For balancing the wheels I preferably provide a plurality of balancin which are arranged to be removab y mounted in weight receiving openings or holes 35 on the flange 19 and clamping collar.

For receiving the arbor 33 and the wheel mounted thereon to permit the balancing of the wheel I provide a pair of runways or balancing ways 25, 25 w ichmay be permanently incorporated in the machlne or formed by so arate brackets which may be attached to t e machine. In any event I prefer that the runways be closely asso ciated with the grinding machine in order that the best results may be most conveniently obtained. In the structure illustrated each track or runway 25 is su ported in an accurate horizontal position by a bracket 26 provided at its up r corner with ahorizontal cross foot 2 'and a rforation adapted to receive a horizontal lt 28 arranged to extend into the base of the machine 10. The foot 27 is so shaped as to form a fulcrum upon which the bracket may be rocked. At its lower corner the .bracket is provided with a perforation.

weights.

between the base 10 and the bracket 26 so as to form an adjustable support for the lower end of the bracket, the bracket being clamped in desired position by a nut 31 on the bolt or stud 29 which extends from the machine base. The nut 32 on the bolt or stud 28 serves to'clamp the foot 27 against the base 10.

By this arrangement each of the brackets 26 may be readily adjusted so as to bring its track 25 into a truly horizontal position whereby the pair of tracks will be level and will serve as asupport upon which the balancing arbor 33 may roll.

The balancing of the wheel either initially, or subsequently to the period of wear, is accomplished by removing the wheel from the machine arbor and mounting the same on the balancing arbor 33 and placing the arbor on the tracks 25 as indicated in Fig. 2. The wheel will of course automatically roll until its heavy side is down. The heavy side may then be compensated by the proper insertion of weights on the light side. After weights have been inserted the wheel is again rolled on the tracks and if it again assumes the same light-heavy position the inserted weights may-be adjusted or additional weights provided until the wheel is properly balanced on the arbor. It will be seen that by the use of the tracks above described the unbalanced condition of the wheel may be readily observed and the tracks ofier no obstruction to the manipulation of the balancing weights so that after the wheel is once placed on the tracks the same need not be removed but may be properly balanced and tried. By the provision of the means whereby the tracks may be adjusted, these tracks may be accurately levele A I I claim as m invention:

1. A wheel alancing track support for grindin machines comprising a bracket rovide at one corner with a corner foot orming a fulcrum for the bracket and a horizontal perforation and a vertically spaced corner formed for engagement by a clamping means, and means to engage said two corners to clamp the same in place and to adjust the bracket to 'levelism.

2. An attachment for grinding machines comprising a bracket provided at one corner with a cross foot 27 and a perforation to receive a clamping bolt, a vertically spaced corner with a perforated ear to receive another clamping bolt and a track 25 substantially as and for the purpose specified.

3. A balancing bracket member for application to a grinding machine comprising a bracket of substantially triangular form having at one corner a transverse foot provided with a pair of spaced fulcra and an intermediate aperture, one side of the bracket adjacent said foot having a track formed thereon and the other side adjacent the foot making an angle less than a right angle with the track side and terminating in a perforate ear portion, whereby said ear will normally stand a distance away from the support for the bracket and provide a space to receive an adjustable clamp member, substantially as illustrated.

4. A wheel balancing track for attachment to grinding machines including a track and a bracket for supporting said track, said bracket having a mounting member substantially at right angles to the track and arranged to be rockably secured at its upper end to a grinding wheel base and means at the lower end of said mounting member for securing the same to the base and for adjusting said mounting member toward and away from the base to level the track.

5. A wheel balancing track for attachment to grinding machines including a track and a bracket for supporting said track, said bracket having a mounting member extending substantially at right angles to the track and provided with a transversely extending brace to prevent lateral rocking of the track, said mounting member having at its upper end means for rockably securing the same to a grinding wheel base and means at its lower end for securing the same to the base and for adjusting the lower end toward and from the base for the purpose of leveling the track.

In witness whereof, I MILTON O. REEVES have hereunto set my hand at Columbus, Indiana, this 8th day of January, A. D. one thousand nine hundred and twentythree.

MILTON O. REEVES.

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