US924604A - Grinding composition. - Google Patents

Description

" UNITED STATES PATENT oFF oE,

EDWARD B. GALLAHER, or NEW YORK, N. Y., ASSIGNOR To CLOVER MANUFACTURING COMPANY, OF NEW YORK, N. A CORPORATION OF NEW YORK.

GRIN ING courosrrron.

Specification of Letters Patent. Application filed. July 16, 1907. Serial in. 384,013.

Patented June 8, 1909..

automobiles or autoboats-and it has for its objects, first, to produce a composition of matter for such use, the body or sustaining part of which is anoil, preferably a mineral .oil, which will not run or melt at ordinary have such a consistency'that the grinding owder shall always retain its intermixedreation with the oil for all climatic and. all temperatures engendered in actual use.

' Third, to produce a com .osition of matter of a powdered grinding su stance and an oil,- the latter being of such consistency that for all climatic and other temperatures engendered in actual use the same may be,packed in containing vessels without any possibility of the oil and the powder varying their relative intermixed proportions, either in use or during transportation. Fourth, to produce a composition of matter which'may be utilized in such cases with a single a plication thereof and which may be quick y ande'asily vremoved from the valve and valve seat by the user without the possibility of the admission of any part thereof into the .interior of the engine. Fifth, to produce a composition of matter of a grinding substance and an oil of such viscosity that it will notflow either for climatic temperatures or for temperatures such as are engendered by theruse thereof. Sixth, to produce a composition of matter for rinding valves and valve seats which shall be of such a viscous nature that it ma be carried in boxes or bottles in the too it is important that the valves shall be accurately adjusted in their'seats so as to obtain the best possible results from the explosions of the gases utilized, and when engines of this type are neglected in respect to such proper relation of the valves and valve seats they soon become worthless and are relegatedto the re air shops. It has been customary heretoibre to efi'ect the seating of such valves by the use of oils generally, combined with grinding powders by first smear- ;ing or rubbing a small quantity of oil, such as petroleum, upon the valve or valve seat;

then sprinkling the powder, such as powdared carborundum, emery' or the like upon the surface of the oil and afterward seating the valve, and rapidly rotating it back and forth until the desired result was attained.

;As a matter of fact, however, this cannot be accomplished .with one application of the In the use of explosive engines generally material, and the operator 1s called upon to remove the valve and reapply the material,

very often a number' of times. Such oils, owing to their fluid condition, 'run freely, and in the application of the powders the latter are adnntted to the interlor of the engine in suflicien't quantities to damage the piston and piston rings to such an extent as to make it necessary to send the engine to the repair shop. It sometimes happens in thus sprinkling the powder upon the oil, after it has een smeared over the bearingface-of the valve, that small globules or volumes thereof will fall upon the surface of the oil and will not be fully absorbed, so that when the valve is being seated the unattached powder will fall My invention overcomes all of these seq rious objections in that I preferabl utilize a "non-fluid mineral oil known genera y among oil refiners as petroleum hard oil as a base for my novel grinding and polishing com osition of matter, I have ascertained t at oils of the mineral type, such as petroleum, and particularly the non-fluid product thereof,

- finish the work with the finer product.

refining'as petroleum hard oil), is especially fitted for this purpose, in that it will not flow for climatic or frictional tern eratures under from 125 to 150 degrees, etroleum hard oil is also known and sold by the trade as a non flowing oil which will not fiow for climatic temperatures. With this oil I thoroughly mix or combine any well known grinding substance in the nature of a fine .powder, preferably fine carborundum, as

carborundum is found to be one of the best grinding and I thoroughl mix these ingredients in preferably the f0 lowing proportions2% pounds of coarse powdered carborundum to 10 pounds of non-fluid oil. For a finer composition I thoroughly mix 2 pounds of fine powdered carborundum to 10 ounds of nonfluid oil.. In general I uset e coarser prod uct first for reducing the valves and valve seats to approximate accurate relation and Of course, the proportions of the ingredients and relative quality or fineness of the powder may be varied to suit the conditions of the case, the essence of my invention lying in the production of a com osition of matter for the purpose described w 'ch will not flow for ordinary climatic temperatures during the heated season, or for such temperatures as are engendered by the usage due to friction in the act of applying the material.

I do not limit my invention to the especial combination of materials hereinbefore described, nor to the specific proportions there of, forthat, obviously various non-fluid oils which would not flow at the temperatures inpolishing substances known.

dicated might be substituted and various grinding powders or substances such as are well known and in general use in the art of grinding and polishing might be substituted or carborundum, my invention embodying generically the combination of a powdered polishing or grindingv substance with a petroleum hard oil, also known as a nonflowing oil, which will maintain its viscosity or non-tendency to run under the conditions named, although the identical substances named and the proportions thereof used are preferred, as I have been enabled to obtain such results therewith as to make this composition of matter a very valuable product 1n the art of grinding and seatlng valves. specific use to which it is herein referred to as Nor do I limit my invention to the being applied, as obviously the same may be 7 utilized generally in the art of grinding and polishing surfaces where it is important that the results which I claim for this product ma be attained.

J aving thus described my invention what I claim and desire to secure by Letters Patent of the United States is- A composition of matter for grinding and polishing surfaces composed of a grinding powder intermixed with petroleum hard oil, substantially as described.

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

EDWARD B. GALLAHER.