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.


  1. Advanced Patent Search
Publication numberUS927164 A
Publication typeGrant
Publication dateJul 6, 1909
Filing dateMar 16, 1908
Priority dateMar 16, 1908
Publication numberUS 927164 A, US 927164A, US-A-927164, US927164 A, US927164A
InventorsAlvin W Puffer
Original AssigneePuffer Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 927164 A
Previous page
Next page
Description  (OCR text may contain errors)



urnmuml FILED 1mm. 16. was.

Patented July 6,. 1909.




Specification of Letters Patent.

Patented July 6, 1909.

' Application filed March 16, 1908. Serial No. 421,344.

To all whom it may concern.

Be it known that I, ALVIN W. PUFFEn, a citizen of the United States, residing in Medford, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Grinding-VVheels, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representinglike parts.

The present invention relates to a grinding wheel, and is embodied in a carborundum wheel especially intended for use in cutting or grinding marble. I have discovered that marble can be rapidly cut away by the peripheral actionv of a carborundum wheel rotated at high speed, it being necessary, however, to keep the wheel cool in order to prevent the material used as a bond for the carborundum from disintegrating.

In cutting through a slab of marble, or in grinding down one edge of such a slab, the grinding action takes place entirely along theperipheryof the wheel, and it is necessary, therefore, to dissipate the heattalong that part of the periphery which is in actual grinding contact, in order to keep the grinding stone intact. Furthermore, in cutting through a slab of marble, it is obvious that the eriphery of the wheel is embedded in the mar lc as soon as the wheel'begins to cut, so that it is desirable to conduct a cooling medium, such as cold water,- to the bottom'of the channel where it will carry oil the heat as fast as generated. For this purpose, the

wheel embodying the invention is provided;

with means for conducting water continually to the working surface, the wheel being provided with channels leading from a portion of the wheel away from the art in grinding contact, where a stream oi water can be steadily su plied, to the said part in grinding contact, w 'ch is below the surface of the material being cut.

Figure 1 is a side elevation of a wheel embodying the invention, and Fig. 2 is an end view of the same.

Referring to Fig. 1, the wheel a is shown as.

4 operation, the principal grinding or cutting is -performedby the peripheral portion a? of the wheel which becomes embedded in the material operatedupon (indicated in dotted lines, Fig. 1, and designated by the reference character A) In order to keep that portion of the periphery a which is in actual grinding contact from becoming overheated, the wheel is provided with means for conducting a cooling medium such as cold water to the part of the Wheel which is in rinding contact with the material A, the wheel being shown as provided for this pu ose with channels a cut on the opposite sides of the wheel, the said channels beginning at a point near the middle of-the wheel and terminatin at the periphery thereof. The channe s are arranged alternately at opposite sides, so as to feed as many streams of water as possible toward the bottom of the out, without unduly weakening the material of which the wheel is made. By curving the channels, as indicated in Fig. 1, the rotation of ,the wheel tends to throw the water in the direction of rotation thereof, this configuration thus assisting in forcing the stream of water into the out where the actual grinding operation is takin place.

As best shown in Fig. 2, the staggered or alternate arrangement of the channels at opposite sides admits of the cutting of the c annels approximately half way through the wheel without unduly weakening t e same,fs0 that" the water distributing space afforded by the channels at opposite sides extends substantially wholly across the peripherypf the wheel.


A grinding wheel having curved channels on opposite sides, said channels on one-side alternating in position with those on the o positc side, the channels being formed in t 0 surface of the wheel and extending from points near the middle of the wheel to the periphery thereof.

In testimony whereof, I have signed my name to this specification in .the presence of

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2457516 *May 10, 1947Dec 28, 1948Allison CompanyMethod of making abrasive cutoff wheels
US2564217 *Oct 30, 1948Aug 14, 1951Carborundum CoAbrasive cutoff wheel
US2589661 *Dec 15, 1950Mar 18, 1952Belcher Jr Walter AGrinding wheel
US2614441 *Apr 4, 1947Oct 21, 1952Goddard & Goddard CompanyCutter and method of forming the same
US2775854 *Feb 8, 1954Jan 1, 1957Carl KlingsporCutting or polishing disk
US2811960 *Feb 26, 1957Nov 5, 1957Fessel PaulAbrasive cutting body
US2811961 *Nov 9, 1953Nov 5, 1957Vincent TenoComposite grind wheel forming tool
US2815435 *Aug 6, 1954Dec 3, 1957Firth Sterling IncSpark machining apparatus
US2837878 *Jan 18, 1956Jun 10, 1958Oliver M JohnsonAbrading wheels with undercut relief grooves
US2978847 *Apr 25, 1958Apr 11, 1961Philips CorpAbrasive cutting wheel
US3023551 *May 12, 1958Mar 6, 1962Bisterfeld & StoltingGrinding wheel
US3076219 *Jul 13, 1953Feb 5, 1963Osborn Mfg CoBrush construction
US3397493 *Dec 9, 1964Aug 20, 1968Engelhard Hanovia IncSurfacing apparatus
US3889430 *May 16, 1973Jun 17, 1975S P A MAbrasive tools
US4461268 *Jan 4, 1982Jul 24, 1984Jiro InoueDiamond saw
US4516560 *Jul 29, 1982May 14, 1985Federal-Mogul CorporationFor wet cutting of natural or artificial rock
US4624237 *Feb 28, 1985Nov 25, 1986Jiro InoueDiamond saw
US5479911 *May 13, 1994Jan 2, 1996Kulicke And Soffa Investments IncDiamond impregnated resinoid cutting blade
US6050163 *Jan 15, 1999Apr 18, 2000Cutting Edge Designs, L.L.C.Saw blade having liquid transport cavity for use with lubricating guide support assembly
US6179697 *Mar 12, 1999Jan 30, 2001Sanwa Kenma Kogyo Co., Ltd.Grindstone adapter
US6241522 *Jan 8, 1998Jun 5, 2001Gebruder Brasseler Gmbh & Co.Grinding tool for dental purposes
US6705188Jul 16, 2001Mar 16, 2004Cutting Edge Designs, LlcSaw blade having liquid transport cavity for use with lubricating guide support assembly
US6935940Oct 12, 2004Aug 30, 2005Saint-Gobain Abrasives Technology CompanyMetal single layer abrasive cutting tool having a contoured cutting surface
US7299727Jun 27, 2003Nov 27, 2007Cutting Edge Designs, LlcLiquid transport cavity saw blade
US7497153 *Nov 8, 2004Mar 3, 2009James Hardie International Finance B.V.Cutting tool and method of use
US8151783Jun 27, 2005Apr 10, 2012Husqvarna Outdoor Products Inc.Tools and methods for making and using tools, blades and methods of making and using blades
US8701536 *Jan 21, 2009Apr 22, 2014Saint-Gobain Abrasives, Inc.Circular saw blade with offset gullets
US20090199692 *Jan 21, 2009Aug 13, 2009Saint-Gobain Abrasives, Inc.Circular Saw Blade With Offset Gullets
EP0850728A2 *Jan 31, 1997Jul 1, 1998Sankyo Diamond Industrial Co., Ltd.Electrodeposited diamond wheel
WO2000041849A1 *Jan 7, 2000Jul 20, 2000Cutting Edge Designs L L CSaw blade having liquid transport cavity for use with lubricating guide support assembly
Cooperative ClassificationB24B55/02