Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS158617 A
Publication typeGrant
Publication dateJan 12, 1875
Filing dateJun 6, 1874
Publication numberUS 158617 A, US 158617A, US-A-158617, US158617 A, US158617A
InventorsBuee Bannistee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Improvement in elastic clamps for polishing and grinding wheels
US 158617 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

B. BANNISTER,1. G. PERKINS,& W. H. STODDARD.

Elastic Clamps for Polishing and Grinding Wheels.

N0.-158,617 Pa-tentedian.i2,1875.

, WITNESSES INVENTORSV A BY ATTORNEYS UNITE 1 STATES Benn BAnNIs'rEn, JOHN c. reams, AND WILLIAM H. STODDARD, or

KALAMAZOO, MICHIGAN.

IMPROVEMENT IN ELASTIC CLAMPS FOR POLlSHING AND GRINDING WHEELS.

Specification forming part of Letters Patent No. 158,617, dated January 12, 1875 application filed 'June 6, 1874.

To all whom it may concern: 1

Be it known that we, Bonn, BANNISTER, JOHN G. PERKINS, and WILLIAM H. Sron- DARD, of Kalamazoo in the county of ,Kalamazoo, and State of ichigan, have invented wheels, wherein it is desired to allow such wheels to center themselves automatically. The invention consists in the employment, in combination with an elastic center, an emery, or grinding wheel and elastic side clamps, of two dished (clamping-collars, one of which is constructed with a'sleeve, which passes through the said elastic center, and receives upon it the other movable collar, the whole being rigidly confined by means of a mandrel and a nut, as will be hereinafter explained.

Inthe annexed drawings, A designates a grinding-wheel, which may be composed inwhole or part of emery or other suitable substance, with a hole centrally through it. In this hole is confined a circular flanged eyepiece, J, which is composed of indie-rubber, and which is held ill-place by means ot' its flanges. O G" designate two clamping-collars of any required diameter less than the diameter of the wheel A, which collars are constructed with rims c on their edges that give them-adished shape, as shown in Fig. 1. The

collar 0 has constructed centrally on it a sleeve or tube, I, which is passed through the center of the eye-piece, J, and which receives through 1t a mandrel, M, having a shoulder, a, on one end, and a screw-thread on the other end. R R designate two elastic rings of in-' dia-rubber, whose interior diameter is such that they receive into them the flanges on the eyepiece J, and whose exterior diameter is such that they are received snugly in the clamping-collars 0G, and prevented from dis placement by the annular rims or flanges c a of these collars. When the eye J is adjusted in the center of the wheel A, the clampingcollars are applied to this wheel with the elastic rings R It between them and the wheel A,

the mandrel M is inserted through the collar (J and sleeve I and collar 0', and through the said eye J, and receives on its end the nut N,

by screwing up which the collars O O and the intermediate rubber rings It It will be firmly clamped to the sides of the wheel A.

The advantages derived from this form of clamp are as follows, to wit: The bearing upon the mandrel is greater than the thickness of the wheel, being the thickness of the wheel with the additional thickness of the body of the clamps or collars. The benefit gained is a greater bearing-surface when in use'on the mandrel. The clamping-collars, when adjusted to the wheel, being a part of this wheel, can be taken from the mandrel.

and mounted without'centerin g or turning up the wheel ateach change. This form of clamp, when once fitted to the wheel, remains with the wheel. Theclamp 0 and thimble I being made of metaha very accurate fit t0 the mandrel is obtained. In screwing up clamp 0 it is guided centrally by the thimble or sleeve, and will adjust itself perfectly. to the wheel, and bring all the parts in proper place.

What we claim as new,'and desire to secure by Letters Patent, is-,-

' The clamping-collar 0, formed entire with v the sleeve I, and receiving through it the mandrel M, in combination with the elastic eye J, elastic rings 1%. R; loose collar 0, and clamping-nut N, and with the grinding-wheel A, substantially as described.

In testimony that we claim the above we have hereunto subscribed our names in the presence of two witnesses.

' BUBR BANNISTER.

JOHN C. PERKINS. WILLIAM H. STODDARD.

' Witnesses:

W. W. PEcK, J AMES W. HOPKINS.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2572042 *Jul 13, 1948Oct 23, 1951Martin Charles AMeans for mounting cutting blades on shafts
US2712205 *Jun 20, 1952Jul 5, 1955Crucible Steel CompanyAbrading roll
US2726493 *Dec 15, 1953Dec 13, 1955Us Rubber CoGrinding wheel manufacture
US2867953 *Jul 23, 1958Jan 13, 1959Kennerty Thomas HAttachment for saw grinding machines
US3088251 *Oct 24, 1958May 7, 1963Nat Broach & MachGear finishing tool
US3353306 *Jan 31, 1964Nov 21, 1967Norton CoHub mounting for grinding wheels
US4354328 *Aug 12, 1980Oct 19, 1982Masato AinouraScrew type hone assembly for the honing of gears
US4549372 *Dec 8, 1983Oct 29, 1985De Beers Industrial Diamond Division (Proprietary) LimitedGrinding wheel
US8549973Jul 24, 2006Oct 8, 2013Michael Patrick BurkeRotating blade arbor hole
Classifications
Cooperative ClassificationB24B45/00