US791159A

US791159A - Abrasive-wheel mounting.

Info

Publication number: US791159A
Application number: US20852604A
Authority: US
Inventors: Charles H Norton
Original assignee: Norton Grinding Co
Current assignee: Norton Grinding Co
Priority date: 1904-05-18
Filing date: 1904-05-18
Publication date: 1905-05-30
Anticipated expiration: 1922-05-30

Description

No. 791,159. PATENTED MAY 30, 1905.

O. H. NORTON. ABRASIVE WHEEL MOUNTING.

APPLICATION FILED MAY18. 1904.

2 SHEETSSHEET l W/ TNE SSE 8 IN VE N TOR WM I ATTORNEY PATENTED MAY 30, 1905.

C. H. NORTON. ABRASIVE WHEEL MOUNTING.

APPLICATION FILED MAY 18. 1904.

2 SHBETSSHEET 2.

ATTORNEY UNITED STATES Patented May 30, 1905.

PATENT OFFICE.

CHARLES H. NORTON, OF WORCESTER,

MASSACIIUSETTIS, ASSIGNOR TO NORTON GRINDING COMPANY, OF IVORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ABRASIVE-WHEEL MOUNTING.

SPECIFICATION forming part of Letters Patent N 0. 791,159, dated May 30, 1905. Application filed May 18 1904. Serial No. 208,526.

To all whont it may concern:

Be it known that I, CIIARLEs H. NoRToN, a citizen of the United States of America, residing at Worcester, in the county of W'orcester and State of Massachusetts, have invented certain new and useful Im )rovements in Abrasive-Wheel Mountings, of which the following is a specification.

The invention to be hereinafter described relates to emery-wheels, and more particularly to the mounting of such wheels upon their carrying-arbors or other instrumentalities. In one form of such moun ting the emery-wheel is carried on a rotatable shaft or arbor to which it is secured by means of collars, between which the emery-wheel is clamped. In such form of mounting it has been proposed to apply an elastic medium between the faces of the emery-wheel and collars; but such elastic medium is diflicult of application, deteriorates in elasticity by the constant pressure thereon, becomes seriously injured and impaired by the oil or other lubricant, so that the pressure of the collars on the emery-wheel varies under the conditions of use, and cracking of the wheel is liable to result.

\Vith these general defects in view the object of the present invention is to provide a 0 mounting for the emery-wheel on its carrying shaft or arbor that will not only overcome these defects, but afford a yielding though inelastic bearing of the collars against the emery-wheel, prevent slipping of the wheel between the collars, and hold the parts of the wheel from flying apart in case of rupture.

Having these and other objects in View, the invention consists, primarily, in providing a soft and yielding yet inelastic metal facing for the emerywheel collars or flanges which shall bear directly upon the wheel and yield to accommodate itself to the irregularities thereof without resulting elasticity and in providing convenient means for at- 4 5 taching the soft-metal facing to the collars or flanges and other features, as will hereinafter be more fully described and then definitely pointed out in the claims.

In the drawings, Figure 1 is a sectional view showing an emerywheel mounting embodying one form of my invention. Fig. 2 is a like view of a slightly-modified form of mounting. Figs. 3 and 4 are detail face views of two forms of collars or flanges, parts being broken away and such collars or flanges being provided with recesses or cavities into which the soft-metal facing mayproject for holding such facing fixedly with relation thereto.

Referring to Fig. 1 of the drawings,A represents any usual or ordinary form of shaft or arbor for carrying and operating an emerywheel B, which wheel may be of any usual construction in this class of devices. The end a of the shaft or arbor A is provided with a screw-thread adapted to receive a nut a for securing the emery-wheel B and its clamping collars or flanges to the shaft or arbor A.

In the present form of the invention as illustrated in Fig. 1 I have shown one of the flanges C as provided with a sleeve portion 0, adapted mm the usual bore or hole formed centrally in'the emerywheel B. This sleeve portion 0 of the collar or flange C also has a suitable bearing at 0 upon the tapering end a of the shaft or arbor A and is made to retate with said shaft or arbor A by being fixedly secured in any suitable manner-as, for instance, by the projection of the collar or flange engaging a corresponding cavity or recess in the part a of the shaft or arbor A. Of course it is understood that these details of connecting means may be widely varied. In the present form of the device also I have provided a washer a, adapted to engage by exterior screw-threads thereon the screwthreads (1, formed on the interior of an end cavity 0, formed on the collar or flange C. Against this washer (I; the nut a bears to i hold the collar or flange C in the proper positlon on lts shaft or arbor A; but other means I may be employed for this purpose, as will be evldent.

Mounted so as to loosely ass onto the sleeve 0 of the collar or flange L is the second collar or flange D, and in order that said 001- l the device it will be noticed that the collars lars or flanges C and I) may rotate in unison or flanges C D are tapered in accordance the sleeve of the collar C has formed on its with the taper of the emery-wheel B and at exterior a longitudinal slot or opening 0', their inner surfaces areprovidedwith stepped 5 which is engaged by a pin (Z, extending from reeessesf into which the soft-metal or lead 70 the collar or flange l). facing F is either run while in molten condi- In order that the emery-wheel B may be tion or forced by pressure in a manner corresecurely clamped between the collars or i spending to that already described for Fig. l. flanges C and l), the exterior portion of the f It will be evident,of course, that numerous IO sleeve 0 is provided with screw threads 1: l modifications may be made in the form and 75 and a nut E, having an internal screw-thread general disposition of parts and that in the engaged therewith, so as to force the collars character of device as shown by Fig. 2 the or flanges C and D toward each other and setapering collars or flanges C D act as safety curely hold the emery-wheelB therebetween. devices to prevent the emery-wheel flying The inner faces of each of the collars or apart should it become ruptured. 8o flanges C and Dthat is, the surfaces next to From the construction herein described it the emery-wheel B have each a facing F of will be noted that the yielding and inelastic a soft metal, such as lead, which while yield metal facing for the collars or flanges can be ing in character possesses no elasticity and readily made fast to such collars or flanges is not materially affected by the lubricant without any separate fastening devices, as 85 used in connection with the wheel, such as already explained, and that the soft-metal water, oil, and so on. This facing F, l preffacing can be trued up at any time to correerably form of lead; but it will be understood, spond to the surface of the emerywheel. of course, that any metal having the charac- Such soft-metal facing presents a strong and teristics of lcad-namely, yielding, but not yielding yet inelastic bearing for the sides of 90 elastic will fulfil the purposes in view. the emery-wheel, so that the particles of the In order that the soft-metal or lead facing emery on the surface of the wheel may be F may be fixedly secured to the faces of the come embeddcdinitwhen thenut is tightened. collars or flanges C and I), I preferably pro- Thus all slipping of the wheel is absolutely 3o vide such faces each with cavities which, as prevented, even in heavy work, nor is it nec- 5 shown in Fig. 1 atf, may be undercut or doveessary to tighten the screw with any great tailed, and I may run the soft metal into severity, as the connection between the soft these cavities and on the faces of the collars metal facing andthe emery-wheel is such that While in a molten condition and thereafter such wheel is caused to rotate with the col- 5 true up the surface, or since the metal is ofa lars or flanges, even when the nut is not 100 soft and yielding nature I may force the cold tightened to its limit. This obviates undue, metal into such cavities, as will be well untightening of the nut, as sometimes occurs in derstood by one skilled in the art. the elastic-faced collars or flanges which Of course it will be obvious that various have been tried heretofore and frequently rcforms of cavities may be provided in the sursulted in the breaking or rupturing of the 105 faces of the collars or clamps O and D, and emery-wheel. By the soft-metal and nontwo of such forms I have shown by Figs. 3 elastic facings it is not necessary that the and 4. In the former these cavities are illussides of the wheel be exactly parallel nor need trated in the form of radial grooves, as F, the center hole of the wheel be an accurate while in Fig. 4 they are designated as circular fit on the shaft, since the soft metal entering 1 10 holes or recesses F In either case, howthe surface of the emcry-wheel under the ever, the purposes of perforations or openings slight pressure of the nut will hold the wheel serve to hold the soft-metal facing fixed with in proper position, and in case of ru ture durrelation to thc collars or flanges, and this ing operation the lead facing ten s to cling without the addition of screws or other sepato the surface of the emery-wheel and pre- 1 15 rate holding means. vent particles flying outward In Fig. 2 I have shown a slightly-modified Having thus described my invention, what form of emery-wheel mounting in which the I claim, and desire to secure by Letters Patwheel B is shown tapering from its center ent, is

outward, and I have also disclosed a different 1. In a device of the character described, 120

form of mounting on the shaft A of the 001- an emery-wheel, collars or flanges for securlars 0 D The shaft or arbor A in Fig. 2 is ing said wheel in lace, said collars or flanges preferably provided with a collar a against each having a so t, yielding, and non-elastic which the collar or flange C has a bearing metal facing.

after being placed upon the arbor or shaft A 2. In a device of the character described, I 2 5 The emery-Wheel B in Fig. 2 may be proan emery-wheel, collars or flanges for securvided with a bushing b, and the collar or ing said wheel in place, said collars or flan es flange D may be forced toward the collar C I having recesses in a surface thereof, am? a by means of a nut a, screw-threaded to the i soft yet non-elastic metal facing projecting shaft or arbor A In this modified form of i into said recesses.

3. In a device of the character described, the combination of an emery-wheel, an arbor or shaft for carrying the same, collars or flanges disposed one on each side of said wheel, said collars or flanges each having a soft yet non-elastic metal facing for engaging the sides of the emery-wheel, and means independent of the arbor for forcing the collars or flanges toward each other to clamp the emery-wheel between the soft-metal facings.

4. In a device of the character described, the combination of an emery-wheel, an arbor or shaft for carrying the same, collars or flanges disposed one on each side of said Wheel, and each provided with surface recesses, a soft yet non-elastic metal facing for each of said collars or flanges and engaging the recesses therein, and means independent of the arbor for forcing said collars or flanges toward each other to clamp the emery-Wheel between said soft-metal facings.

5. In a device of the character described, the combination of an emery-wheel, an arbor or shaft for carrying the same, collars or flanges disposed one on each side of said wheel, and each provided with undercut surface recesses, a soft yet non-elastic metal fac ing for each of said collars or flanges and engaging the recesses therein, and means for forcing said collars or flanges toward each other to clamp the emery-wheel between said soft-metal facings.

6. In a device of the character described, the combination of an emery-wheel, an arbor or shaft for carrying the same, collars or flanges disposed one on each side of said emery-wheel, one of said collars or flanges having a sleeve on which the other collar or flange is mounted, each of said collars or flanges having a soft yet non-elastic metal facing, and means for forcing one of said collars or flanges toward the other to clamp the emerywheel between the soft-metal facings.

7. In a device of the character described, the combination of an emery-wheel, an arbor or shaft for carrying the same, collars or flanges disposed one on each side of said emery-wheel, one of said collars or flanges having a sleeve on which the other collar or flange is mounted, each of said collars or flanges having a soft yet non-elastic metal facing, said collars or flan es being connected to retate in unison, an means for forcing one of said collars or flanges toward the other to clam the emery-wheel between the softmeta facings.

8. In a device of the character described, the combination of an emery-wheel, an arbor or shaft, collars or flanges having soft yet nonelastic metal facings disposed one on each side of said wheel, one of said collars or flanges having a sleeve fitted to said arbor or shaft and on which the emery-wheel is directly supported, a screw-thread on said sleeve, and a nut for clamping the soft-metal facin gs of the collars against opposite sides of the emery- Wheel.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES H. NORTON.

Witnesses:

ALDUs O. HIGGINS, M. A. (100KB.