US1176174A - Abrasive composition. - Google Patents

Description

c. c; SHATT'UCK. ABRASIVE COMPOSITION. APPLICATION FILED MAR. 3|, 1915.

l l 76, 1 74. Patented Mar. 21, 1916.

1 room a citizen of the United States, residy are.

CLINTON O. SHATTUCK, OF INDIANAPOLIS, INDIANA.

ABRASIVE COMPOSITION.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application filed March 31, 1915. Serial No. 18,332.

To all whom it may concern."

Be it known that I, CLINTON O. SHAT- sitions, and has for its primary object to provide a hone for sharpening razors and other cutting instruments, in the construction of which I embody an improved abrasive composition which permits the quick and accurate honing or sharpening of the razor without injury thereto.

The invention has for a further object to produce an improved abrasive composition, the several ingredients of which may be obtained at comparatively small cost so that the hone or other article manufactured from the improved composition can be inexpensively manufactured and sold.

It is an additional object of my invention to provide a hone or whet-stone of the above character which is rapid in its abrasive ac-, tion while, at the same time, the abrasive composition'will wear away very slowly and will, therefore, be very durable in practical use.

With the above and other objects in view,

the invention consists in the novel structural.

features of the hone as hereinafter pointed out, the drawing in which an illustrative embodiment of the invention is disclosed beng a longitudinal section through the hone.

In carrying out my invention, as the abrasive constituent of the composition stone, I employ powdered pumice stone. As a vehicle for the pumice stone, dry white lead, Spanish white and Japan drier are employed in suitable proportions, to be determined in accordance with the quantity of the composition-to be produced. The white lead, when mixed with the other ingredi ents, retains its moisture for a considerable length of time and, for this reason, Japan drier is employed, while the Spanish white is used to harden the mixture sufiiciently to prevent the white lead from drying too hard and cracking. The mixture is reduced to the proper consistency by adding turpentine thereto and, preferably, a small quantity of black coloring matter is added so character.

that the mixture will assume a stone gray or slate color.

To about a gallon of the mixture above referred to as constituting the base or vehicle of the composition, pumice stone is added in sufiicient quantity to make the pumice stone from settling in the bottom of the receptacle while, at the same time, the mixture retains its semi-fluid or plastic In the manufacture of the hone from the composition above described, a core or body, indicated at 5 in the accompanying drawing, is provided, said body being of suitable length, width and thickness, and preferably of white pine wood. This wood body is first surfaced with sand or emery paper and then given a coat of white lead, indicated at 6, as a primer'or foundation for the abrasive composition. After the lead has dried, it also is rubbed with sand or emery paper and all rough places are filled with utty. After the putty dries, the surfaces are ally sanded to provide an absolutely smooth surface upon which the composition is applied. The abrasive composition is applied by dipping the body provided with the priming 'compositionsufliciently. thick to keep the coat above referred to, into a suitable receptacle containing the composition. The core or body is thus dipped twice a day, the coat of the composition being allowed to dry after each dipping. Thirty coats or layers are preferably'thus provided to complete the hone, although it will, of course, be obvious that a greater or less number of such coats may constitute the abrasive body of the hone, as shown at 7. After the coat last applied is thoroughly dried, several coats of the composition are rubbed down with sand stone and water so as to produce a surface on the stone of glass-like smoothness. The hone is now complete and ready for use.

By utilizing pumice stone in the abrasive composition, rapidity or speed in the abrasive or cutting action on the instrument blade is obtained with excellent results. When the mixture is applied in the manner above stated, the same .dries almost to the hardness of stone. There is a very general complaint among barbers that hones,' at present inuse, are too slow in their cutting or abrasive action, and it has been the primary purpose of my invention to produce a or the smoothness of its cutting edge.

be'clea'rly and fully understood.

My improved abrasive composition above described may, of course, be employed in the manufacture of various, other articles than homes or whet-stones, wherein it is desiredto utilize an abrasive which is rapid in its action.

While I have referred to the hone as being particularly desirable for the sharpening of razors, it is, of course, manifest that the same may also be employed for sharpenmg carpenters tools or other keen edged instruments. I

It is further to 'be borne in mind that, in

carrying out my invention, I am not restricted to any of the proportions of the several ingredients used in the abrasive composition, as such proportions will widely vary in bones to be manufactured for various specific purposes. I also reserve the privilege of changing the form and proportions of the completed hone, as may be deemed desirable Having thus fully described my invention, what I desire to claim and secure by Letters Patent is An abrasive composition embodying pumice stone, a vehicle consisting of dry white lead, Spanish white, Japan drier, and turpentine. 4

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

CLINTON O. SHATTUCK.

Witnesses:

THOMAS I L. ,HADDEN, PETER H. ROBISON.

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