US1979271A - Razor blade sharpener - Google Patents

Description

NOV. 6, 1934. w J KOLLER 1,979,271

RAZOR BLADE SHARPENER Original Filed June 22, 1932 Patented Nov. 6, 1934- -IUNITED STATES PATENT oFFicE RAZOR BLADE SHARPENER William J. Keller, Williamsport, Pa., assignor of forty-nine per cent to George M. Ricppel, Ccwancsque, Pa.

Application June 22, 1932, Serial No. 618,750 Renewed January 31, 1934 1 Claim. (01. 51-211) My present invention has reference to a the inclined surfaces are arranged at opposite s a p n for sa razor blades, nd m angles, and the face afforded by the surface 4 p m ry bj is h p v i of a harp n r may be either straight or concaved. The point for this purpose which may be successfully used of intersection between the surfaces 3 and 4, is

5' by y pe on Whether acquainted with the art indicated for distinction by the numeral 5 and 0f sharpening ad 0 no Of a construction this point of intersection is arranged in a plane which Will cause the edge of the blade to be with the upper face of the plane 2, and the angle sharpened in an even and expeditious manner. of inclination of the said surfaces 3 equal or A further object is the provision of a sharpen correspond to the angle edge 6 of a safety razor 1c ing device for either a double or single edge razor blade 7 or 8. The safety razor blade '7 has only blade that is in the nature of a block of any one edge provided with a cutting surface, while desired material that embodies sufficient abrasion the blade 8 is of the type known as the double for sharpening purposes, and which block is can cutting edge. trally formed with a horizontal or plane surface The blade is first laid upon the plane 2 and 15 upon which the blade rests, which block from is from thence moved thereover until its pointed the plane is formed with depressions that proedge contacts with the point of intersection 5' vide inner and outer angle surfaces, the inner between the angle surfaces 3 and 4. The angle surface being arranged at such angle that the edge of the blade will now be brought into consharpened edge of the blade will be brought ditact with the surface 3 and a further movement 20 restly therefi-gsinst when oved Off O t e plane of the blade Will cause the same to be directed surface and such edge, when the blade is imover the angle surface 4 which, as disclosed parted a longitudinal movement will from thence by Figure 3 of th drawing 111 cause t sharptravel over the other angle surface to effect ened edge of the blade when riding over the the sharpening of the blade without liability of surface 4 t be sharpened in an easy and 2e biting into the surface OVel' which the b13413 ditious manner. When the double blade 8 is travels. employed the said blade is moved in opposite To the attainment of the foregoing the invendi ti over th plane 2 and t the sharp tion consists in the improvement hereinafter deenjng surface 4 so t t t edges of t blade scribed and defin y Claimsi will be sharpened at a single operation. I de- 30 In the drawing: sire to state that I have had long experience Figure 1 is a perspective View of a sharpening with razor blade Sharpeners, and have manufacdevice in accordance with this invention. tured and 1 many of t 11 known types Figu 2 is a top P Viewthereof. From such experience I have found Figure 3 is a side elevation thereof showing that all of the Sharpeners are defective in some 35 t ade traveling CV61" the sharpening surface respects, and most especially those that are of the device. operated by moving the blade over an abrasive Fi e 4 is a Similar VleW Showmg a double surface. Most of such surfaces are concaved edge blade ar a upon the central plane and the pointed edge of the blade is not brought surface of the sharpsnerdirectly into contact therewith. Also with such 40 Figure 5 is a detail longitudinal sectional view devices the heel portion f the blade is not 9 of the device as disclosed by Figure 3, with the ground it being understood that the heel is pointed 6nd of t blade slightly Out Of Contact provided at the juncture of the blade with the with the sha p s l sharpened edge thereof and unless this heel is The improvement 1s m the nature of a block 1. ground with the shaving edge the blade Cannot 45 The block may be constructed of any desired be Successfully sharpened material that embodies sufficient abrasiveness to serve as a sharpener for safety razor blades. The

block on its upper face is centrally depressed to ro i e a horizontal lane and table surface 2.

5 ihg rids of the piarfii surface 2 are vertically ener and h advantages w but 0bv10u s1y straight, and from the said edges the outer face I do not be Testrlcted to speclfic of the block is further depressed to provide two Structure hereln shown a deserlbed d, inclined surfaces, the inner portions of which therefore, hold myself entitled to m e uc being indicated by the numeral 3 and the outer an therefrom as fairly a wlthm th 55 portions by the numeral 4. It is to be noted that scope of what I claim.

It is believed that the foregoing description when read in connection with the drawing will fully and clearly set forth my improved sharpplane with the horizontal surface and the inclination of the inner surface coinciding to the bevel edge of a razor blade while resting on a horizontal surface to permit sharpening of the cutting edge of the blade on the outer surface when engaged therewith and the blade moved on the horizontal surface endwise of the block.

WILLIAM J. KOLLER.

Images