US2097894A - Balancing device for grinding or polishing wheels - Google Patents
Balancing device for grinding or polishing wheels Download PDFInfo
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- US2097894A US2097894A US42294A US4229435A US2097894A US 2097894 A US2097894 A US 2097894A US 42294 A US42294 A US 42294A US 4229435 A US4229435 A US 4229435A US 2097894 A US2097894 A US 2097894A
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- weights
- channel
- wheel
- grinding
- balancing device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/16—Bushings; Mountings
- B24D5/165—Balancing means
Definitions
- the main objects of this invention are: First, to provide a balancing device adapted to be secured to a grinding, polishing or buflingwheel, which will permit universal balancing of the same to overcome unevenness in the weight distribution thereof due to wear or other causes.
- Fig. 1 is a front viewin elevation of my device applied to a polishing or bufling wheel, which is partially broken away.
- Fig. 2 is an enlarged fragmentary view partially in section on the line 2--2 of Figs. 1 and 3.
- Fig. 3 is a rear viewin elevation of my balancing device.
- Fig. 4 is a perspective view of an element of my device.
- Fig. 5 is a perspective view of one of the weights employed in my device.
- Fig. 6 is a front elevational view of a modification.
- Fig. 7 is a sectional view on the line l--l of Figs. v6 and 8.
- FIG. 8 is a rear view of the modification of Figs.- 6 and 7.
- Balancing devices which are employed at present in connection with grinding, polishing or buffing wheels or other rapidly rotating wheels requiring corrections to be made for changes of the weight distribution of the same are commonly open to the objection,that the range of adjustment of the weights commonly employed therein is inadequateor that the means for securing the devices to the wheel on which they are mounted fails to permanently hold them, with the result that the device becomes loose and ineffective, or in the fact that the weights comprising the same are not securely mounted with respect to the rest of the structure so that considerable danger is present due to the likelihood of. their being thrown off during the exceedingly rapid rotation of the wheel.
- a grinding, polishing, bufiing or other Wheel is indicated by the reference numeral I, being fixed to shaft 2 upon which the balancing device of my invention is mounted.
- the balancing device is indicated broadly by. the reference numeral 3 and comprises a circular back plate 4 which is flush with the side of wheel I and has a circular aperture 5 therein surrounding shaft 2.
- Disk 1 is provided with a central aperture 8 which fits closely around shaft 2 and. is concentric with respect to plate 4.
- the disk is provided at right angles thereto with an upstanding shoulder 9, and a peripheral flange Ill extends at right angles to the shoulder..
- Wheel engaging plate 4 has a peripheral flange ll extending at right angles thereto, and it will be seen by reference to Fig. 2 that the flange ll of plate 4 and flange ll] of disk 1 form a channel extendingcompletely around shaft 2 and concentric therewith.
- I mount an annular ring I2 of angular section exteriorly of flange II, the angled portion 13 of ring l2 extending inwardly toward shaft 2 and completing an annular weight receiving channel I 4.
- the portion l3 of ring [2 and the flange ID of disk 1 form a continuous circular recess or slot communicating with channel l4.
- Annular ring [2 is welded to flange ll of 40 plate 4 as indicated at l5.
- Plate 4 is provided with a plurality of arcuate openings 16 therein, the openings being uniformly disposed circumferentially of the aperture 5 in the plate and at the same radial distance therefrom.
- the openings [6 furnish access to channel M for insertion of the balancing weights therein, and although one such opening would be sufficient for this purpose, I provide a plurality of the same uniformly disposed so that no unbalancing of the device will result from the removal or absence of metal at the opening I 6.
- Disk 1 is provided at the shoulder 9 thereof with a plurality of equi-distantly spaced slots I! which permit the discharge of grinding particles, emery dust, and dirt from the channel I4.
- the reason for the provision of a plurality of uniformly spaced slots I1 is likewise for the maintenance of the correct weight distribution of the device.
- Each of the weights is bored and tapped as at [9 to receive a threaded cap screw which may have a hexagonal head or may be an Allen cap screw such as I have illustrated and indicated by the reference numeral 20.
- is disposed between the cap screw and the outer surfaces of flange H3 and angled portion 13 to frictionally bear against the same when the cap screw is tightened.
- My device is fastened to the grinding wheel l by means of screws 22, and a clamping collar 23 is sleeved upon the shaft 2 and has an annular channel 25 therein to receive the screws.
- I preferably employ four screws for securing my device to the grinding wheel, inasmuch as that is the number by which the conventional grinding wheel collar is secured to the wheel.
- a collar clamping nut 26 is threaded on shaft 2.
- the balancing device of my invention serves to replace the conventional collar holding the emery wheel and supports the wheel in the same manner as the collar. No alteration of the wheel is necessary as the securing means of my balancing device is standard in every respect.
- the four equally spaced openings I6 serve to improve the rigidity of the mounting for the device on a grinding wheel by engaging integral projections formed on the sides of the grinding wheel if such are desired, thus providing a still further locking means between wheel and balancing device to render the device absolutely non-slip.
- Figs. 6, 7 and 8 illustrate a modification of my device formed of a circular casting 21 provided with an annular wheel attaching Web and having a central shaft receiving opening 28 and a circular recessed portion or chamber 29 concentric with the aperture.
- the casting is provided with tapered holes 30 in which screws (not shown) are received to secure the device to a wheel.
- Casting 21 is provided with a plurality of uniformly disposed arcuate wedge-shaped openings 3
- the openings 31 in casting 21 permit the introduction of weights l8 into channel 32 and are uniformly spaced for the purpose above alluded to with respect to the modification of Figs. 1 to 5, i. e., the elimination of uneven weight distribution in the device, and also permit engagement with lugs formed on the grinding wheel to more securely lock the device, if such lugs are provided.
- the openings are closed when the device is secured to the wheel.
- the operation of my improved balancing device will be obvious.
- the weights 18 are inserted in the channels of the various modifications through the uniformly. disposed openings provided for that'purpose and the balancing device is then attached to the wheel with which it is to be employed, engaging openings l6 or 3
- the weights are rigidly held when adjusted by means of the cap screws 28 and 68 so that they will not readily become loose, and the device is rigidly secured to the rotating wheel.
- My device is characterized by exceeding simplicity of construction, the modifications of Figs.
- the device may be economically produced, being readily secured to standard wheels through the usual means by which a wheel, ring or collar is secured, and'cheaply marketed yet is very efficient in eliminating the objectionable features now found in balancing wheel devices of its type.
- a balancing device for a grinding wheel comprising a circular wheel engaging plate having a peripheral flange, a central aperture, and a plurality of openings uniformly disposed circumferentially of said'aperture, a cupped shaft engaging disk concentric with and welded to said plague, and having a peripheral flange, and an annular ring of angled section concentric with and welded to the flange of said plate whereby a continuous channel is formed between said plate, disk, and ring, having a continuous circular slot communicating therewith, arcuate weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in each weight and operative to draw said weight against said ring and disk, said openings insaid plate permitting insertion of said weights in said channel, and means to lock said device against said wheel.
- a balancing device for a grinding wheel comprising a plate having a peripheral flange, a central aperture, and a plurality of openings unlformlvdisposed circumferentially of said aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flange of said plate whereby a continuous channel is formed between said plate, disk, and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in each weight and operative to draw said weight against said ring and disk, said openings in said plate permitting insertion of said Weights in said channel, and means to lock said device against said wheel.
- a balancing device for a grinding wheel comprising'a platehaving a peripheral flange, and a central aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flangeof said plate whereby a continuous channel is formed between said plate, disk, and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in 7:
- each weight and operative to draw said weight against said ring and disk, and means to lock said device against said wheel.
- a balancing device for a grinding wheel comprising a plate having a peripheral flange, and a central aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flange of said plate whereby a continuous chan' nel is formed between said plate, disk, and ring, said channel having a continuous circular slot communicating therewith formed between said disk and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, and means to lock said device against said Wheel.
- a balancing device for a grinding wheel comprising a casting having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting providing a plurality of openings uniformly disposed concentrically of said aperture on the other side thereof, a plurality of arcuate weights disposed in said channel and adjustable therein,and locking means threaded in said weights and bearing against said shoulders to lock the weights against movement in saidchannel, said openings permitting insertion of said Weights in said channel and balancing the weight distribution of said casting.
- a balancing device for a grinding wheel comprising a casting having an annular web provided with means for attaching the casting to the wheel and having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting having a plu rality of uniformly disposed openings to the other side thereof, permitting insertion of weights in the channel and adapted to engage locking lugs on the wheel, a plurality of arcuate weights disposed in said channel and adjustable therein, and locking means threaded in said weights and hearing against said shoulders to lock the weights against movement in said channel.
- a balancing device for a grinding wheel comprising a casting having an annular web provided with means for attaching the casting to the wheel and having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting having a plurality of uniformly disposed openings to the other side thereof, permitting insertion of weights in the channel and adapted to engage locking lugs on the wheel, a plurality of weights disposed in said channel and adjustable therein, and locking means bearing against said shoulders to lock the weights against movement in said channel.
- a member having a circumierentially extending continuous substantially closed weight receiving channel and provided with a continuous circular slot communicating with said channel, arcuate weights in said channel, cap screws extending through said slot and threaded into said weights, said member having a plurality of uniformly disposed openings therein on the side thereof opposite said slots to permit the introduction of said weights and adapted to register with corresponding securing lugs on a grinding wheel, said member having a shaft aperture therein, and means to secure said device to a wheel.
Description
Nov 2, 1937. i J. ROCHE. 2,097,894
BALANCING DEVICE FOR GRINDING OR POLISHING WHEELS Filed Sept. 26, 1-935 2 Sheets-Sheet 1 INVENTOR.
Jo/m Roche ATTORNEYS J. ROCHE Nov. 2, 193 7.
BALANCING DEVICE FOR GRINDING OR POLISHING WHEELS Filed Sept. 26, 1935 2 Sheets-Sheet 2 INVENTOR. /7/7 P0 Che ,zz/ W ATTORNEYS Patented Nov. 2, 1937 PATENT. OFFlgCE BALANCING DEVICE FOR. GRINDING OR POLISHING WHEELS John Roche, Battle Creek, Mich.
Application September 26, 1935, Serial No. 42,294
8 Claims.
The main objects of this invention are: First, to provide a balancing device adapted to be secured to a grinding, polishing or buflingwheel, which will permit universal balancing of the same to overcome unevenness in the weight distribution thereof due to wear or other causes.
Second, to provide a device which is completely safe at all times, the danger of the weights being thrown therefrom during operation of the grinding wheel being completely eliminated.
Third, to provide a device which is characterized by the simplicity and cheapness of construction of the same, as well as the ease of mounting the device on a grinding or polishing wheel andthe ease of adjustment.
Objects relating to details and economies of my invention willappear from the description to i follow. The invention is defined and pointed out in thelclaimsu Preferred embodiments of my invention are illustrated. in the accompanying drawings, in which: 7
Fig. 1 is a front viewin elevation of my device applied to a polishing or bufling wheel, which is partially broken away.
Fig. 2 is an enlarged fragmentary view partially in section on the line 2--2 of Figs. 1 and 3.
Fig. 3 is a rear viewin elevation of my balancing device.
Fig. 4 is a perspective view of an element of my device.
Fig. 5 is a perspective view of one of the weights employed in my device.
Fig. 6 is a front elevational view of a modification.
Fig. 7 is a sectional view on the line l--l of Figs. v6 and 8.
'Fig. 8 is a rear view of the modification of Figs.- 6 and 7.
Balancing devices which are employed at present in connection with grinding, polishing or buffing wheels or other rapidly rotating wheels requiring corrections to be made for changes of the weight distribution of the same are commonly open to the objection,that the range of adjustment of the weights commonly employed therein is inadequateor that the means for securing the devices to the wheel on which they are mounted fails to permanently hold them, with the result that the device becomes loose and ineffective, or in the fact that the weights comprising the same are not securely mounted with respect to the rest of the structure so that considerable danger is present due to the likelihood of. their being thrown off during the exceedingly rapid rotation of the wheel.
I have made provision in the various modifications of my invention herein disclosed for correcting and obviating these difficulties. My device is characterized further by great simplicity of construction which recommends it from a manufacturing and marketing point of view as well as from the point of view of the ease of assembly flowing from such simplicity. 10
In the drawings, a grinding, polishing, bufiing or other Wheel is indicated by the reference numeral I, being fixed to shaft 2 upon which the balancing device of my invention is mounted. The balancing device is indicated broadly by. the reference numeral 3 and comprises a circular back plate 4 which is flush with the side of wheel I and has a circular aperture 5 therein surrounding shaft 2. I weld to plate 4, as indicated at 6, {a cupped disk 1 of the form indicated in Fig. 4. Disk 1 is provided with a central aperture 8 which fits closely around shaft 2 and. is concentric with respect to plate 4. The disk is provided at right angles thereto with an upstanding shoulder 9, and a peripheral flange Ill extends at right angles to the shoulder..
Wheel engaging plate 4 has a peripheral flange ll extending at right angles thereto, and it will be seen by reference to Fig. 2 that the flange ll of plate 4 and flange ll] of disk 1 form a channel extendingcompletely around shaft 2 and concentric therewith. I mount an annular ring I2 of angular section exteriorly of flange II, the angled portion 13 of ring l2 extending inwardly toward shaft 2 and completing an annular weight receiving channel I 4. By reference to Figs. 1 and 2, it will be seen that the portion l3 of ring [2 and the flange ID of disk 1 form a continuous circular recess or slot communicating with channel l4. Annular ring [2 is welded to flange ll of 40 plate 4 as indicated at l5.
My device is fastened to the grinding wheel l by means of screws 22, and a clamping collar 23 is sleeved upon the shaft 2 and has an annular channel 25 therein to receive the screws. I preferably employ four screws for securing my device to the grinding wheel, inasmuch as that is the number by which the conventional grinding wheel collar is secured to the wheel. A collar clamping nut 26 is threaded on shaft 2.
The balancing device of my invention serves to replace the conventional collar holding the emery wheel and supports the wheel in the same manner as the collar. No alteration of the wheel is necessary as the securing means of my balancing device is standard in every respect. The four equally spaced openings I6 serve to improve the rigidity of the mounting for the device on a grinding wheel by engaging integral projections formed on the sides of the grinding wheel if such are desired, thus providing a still further locking means between wheel and balancing device to render the device absolutely non-slip.
Figs. 6, 7 and 8 illustrate a modification of my device formed of a circular casting 21 provided with an annular wheel attaching Web and having a central shaft receiving opening 28 and a circular recessed portion or chamber 29 concentric with the aperture. The casting is provided with tapered holes 30 in which screws (not shown) are received to secure the device to a wheel. Casting 21 is provided with a plurality of uniformly disposed arcuate wedge-shaped openings 3| at constant radial distances from the center thereof and is further provided with a circumferential channel 32 extending completely around the casting. Shoulders 33 form the outer sides of channel 32 and are spaced from one another to provide a continuous circumferential slot through which cap screws 20 are received, the cap screws being threaded into weights 18. The openings 31 in casting 21 permit the introduction of weights l8 into channel 32 and are uniformly spaced for the purpose above alluded to with respect to the modification of Figs. 1 to 5, i. e., the elimination of uneven weight distribution in the device, and also permit engagement with lugs formed on the grinding wheel to more securely lock the device, if such lugs are provided. The openings are closed when the device is secured to the wheel.
The operation of my improved balancing device will be obvious. The weights 18 are inserted in the channels of the various modifications through the uniformly. disposed openings provided for that'purpose and the balancing device is then attached to the wheel with which it is to be employed, engaging openings l6 or 3| in locking relation to lugs on the side of the wheel if such lugs are provided. Adjustment of the weights is readily made and the range of adjustment is unlimited. The weights are rigidly held when adjusted by means of the cap screws 28 and 68 so that they will not readily become loose, and the device is rigidly secured to the rotating wheel. My device is characterized by exceeding simplicity of construction, the modifications of Figs. 6 to 8, and 9 and 10 in particular consisting of only a unitary casting in addition to the weights and securing means. The device may be economically produced, being readily secured to standard wheels through the usual means by which a wheel, ring or collar is secured, and'cheaply marketed yet is very efficient in eliminating the objectionable features now found in balancing wheel devices of its type.
I have illustrated and described my improvements in embodiments which I have found very practical. I have not attempted to illustrate or describe other embodiments or adaptations as it is believed this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
l. A balancing device for a grinding wheel, comprising a circular wheel engaging plate having a peripheral flange, a central aperture, and a plurality of openings uniformly disposed circumferentially of said'aperture, a cupped shaft engaging disk concentric with and welded to said plague, and having a peripheral flange, and an annular ring of angled section concentric with and welded to the flange of said plate whereby a continuous channel is formed between said plate, disk, and ring, having a continuous circular slot communicating therewith, arcuate weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in each weight and operative to draw said weight against said ring and disk, said openings insaid plate permitting insertion of said weights in said channel, and means to lock said device against said wheel.
2. A balancing device for a grinding wheel, comprising a plate having a peripheral flange, a central aperture, and a plurality of openings unlformlvdisposed circumferentially of said aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flange of said plate whereby a continuous channel is formed between said plate, disk, and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in each weight and operative to draw said weight against said ring and disk, said openings in said plate permitting insertion of said Weights in said channel, and means to lock said device against said wheel.
3. A balancing device for a grinding wheel, comprising'a platehaving a peripheral flange, and a central aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flangeof said plate whereby a continuous channel is formed between said plate, disk, and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, comprising a screw threaded in 7:
each weight and operative to draw said weight against said ring and disk, and means to lock said device against said wheel.
4. A balancing device for a grinding wheel, comprising a plate having a peripheral flange, and a central aperture, a shaft engaging disk concentric with and fixed to said plate, and having a peripheral flange, and an annular ring of angled section concentric with and fixed to the flange of said plate whereby a continuous chan' nel is formed between said plate, disk, and ring, said channel having a continuous circular slot communicating therewith formed between said disk and ring, weights slidably adjustable in said channel, means to lock said weights in adjusted position in said channel, and means to lock said device against said Wheel.
5. A balancing device for a grinding wheel, comprising a casting having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting providing a plurality of openings uniformly disposed concentrically of said aperture on the other side thereof, a plurality of arcuate weights disposed in said channel and adjustable therein,and locking means threaded in said weights and bearing against said shoulders to lock the weights against movement in saidchannel, said openings permitting insertion of said Weights in said channel and balancing the weight distribution of said casting.
6. A balancing device for a grinding wheel, comprising a casting having an annular web provided with means for attaching the casting to the wheel and having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting having a plu rality of uniformly disposed openings to the other side thereof, permitting insertion of weights in the channel and adapted to engage locking lugs on the wheel, a plurality of arcuate weights disposed in said channel and adjustable therein, and locking means threaded in said weights and hearing against said shoulders to lock the weights against movement in said channel.
7. A balancing device for a grinding wheel, comprising a casting having an annular web provided with means for attaching the casting to the wheel and having a central aperture, a circumferential shouldered channel opening to one side of said casting, said casting having a plurality of uniformly disposed openings to the other side thereof, permitting insertion of weights in the channel and adapted to engage locking lugs on the wheel, a plurality of weights disposed in said channel and adjustable therein, and locking means bearing against said shoulders to lock the weights against movement in said channel.
8. In a balancing device for a grinding wheel, a member having a circumierentially extending continuous substantially closed weight receiving channel and provided with a continuous circular slot communicating with said channel, arcuate weights in said channel, cap screws extending through said slot and threaded into said weights, said member having a plurality of uniformly disposed openings therein on the side thereof opposite said slots to permit the introduction of said weights and adapted to register with corresponding securing lugs on a grinding wheel, said member having a shaft aperture therein, and means to secure said device to a wheel.
JOHN ROCHE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42294A US2097894A (en) | 1935-09-26 | 1935-09-26 | Balancing device for grinding or polishing wheels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42294A US2097894A (en) | 1935-09-26 | 1935-09-26 | Balancing device for grinding or polishing wheels |
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US2097894A true US2097894A (en) | 1937-11-02 |
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US42294A Expired - Lifetime US2097894A (en) | 1935-09-26 | 1935-09-26 | Balancing device for grinding or polishing wheels |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861471A (en) * | 1956-08-27 | 1958-11-25 | Leblond Mach Tool Co R K | Balancing device |
DE1074442B (en) * | 1958-05-24 | 1960-01-28 | Hofmann Sees haupt Dionys | Balancing device for rotating and wearing NX produces, for example, sliding disks |
US2927821A (en) * | 1956-09-24 | 1960-03-08 | Ben O Mohr | Wheel and balancing device |
US3017224A (en) * | 1959-09-04 | 1962-01-16 | Elmer D Palmer | Wheel-balancing assembly for truck wheels and the like |
US3332174A (en) * | 1964-04-02 | 1967-07-25 | Carl M Behm | Mounting adaptor assembly |
US6471453B1 (en) * | 2001-05-25 | 2002-10-29 | Kennametal Inc. | Balancing assembly for a rotating member |
US6640704B2 (en) | 2000-08-10 | 2003-11-04 | Heidelberger Druckmaschinen Ag | Method and device for balancing rotating bodies |
-
1935
- 1935-09-26 US US42294A patent/US2097894A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861471A (en) * | 1956-08-27 | 1958-11-25 | Leblond Mach Tool Co R K | Balancing device |
US2927821A (en) * | 1956-09-24 | 1960-03-08 | Ben O Mohr | Wheel and balancing device |
DE1074442B (en) * | 1958-05-24 | 1960-01-28 | Hofmann Sees haupt Dionys | Balancing device for rotating and wearing NX produces, for example, sliding disks |
US2958165A (en) * | 1958-05-24 | 1960-11-01 | Hofmann Dionys | Balancing device |
US3017224A (en) * | 1959-09-04 | 1962-01-16 | Elmer D Palmer | Wheel-balancing assembly for truck wheels and the like |
US3332174A (en) * | 1964-04-02 | 1967-07-25 | Carl M Behm | Mounting adaptor assembly |
US6640704B2 (en) | 2000-08-10 | 2003-11-04 | Heidelberger Druckmaschinen Ag | Method and device for balancing rotating bodies |
US6471453B1 (en) * | 2001-05-25 | 2002-10-29 | Kennametal Inc. | Balancing assembly for a rotating member |
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