Патент USA US2116038код для вставки
"May‘3, 1938. WR; A. F. OHLENDORF 2,116,038 SAFETY RAZOR BLADE SHARPENER /’ Filed June 25, 1936 ‘ 2 Sheets-Sheet l May 3, 1938. - ' ‘re. A. F. OHLENDORF SAFETY RAZOR BLADE SHARPENER Filed June 25, 1956 J5 _ 2,116,038 ‘ 7 2 Sheets-Sheet 2 2,116,038 Patented May 3, 1938 UNITED STATES PATENT OFFICE 2,116,038 SAFETY RAZOR BLADE SHARPENER Robert Alexander Ferdinand Ohlendorf, Buenos Aires, Argentina, assignor, by mesne assign ments, to Felipe Saettone, B‘vuenos‘ Aires, Argentina Application June 25, 1936, Serial No. 87.302 In Argentina July 3, 1935 3 Claims. (01. 51--59) The present invention relates to an apparatus for whetting and sharpening safety razor blades, and the principal object of the invention is the provision of a simple, but practical, blade carrying 5 device for use in whetting and sharpening razor blades. By practicing this invention it is pos sible to restore blades which are very much worn out to ef?cient shaving condition. There have been many devices for this same '10 purpose, but the known devices are generally un which: desirable, because they are either of complicated Figure 1 is a plan view of the lower frame of the blade carrier according to this invention; Figure 2 is an underneath plan view of the '10 upper frame of the blade carrier according to this construction, which means that they are rela invention; tively expensive and easily broken, or that they are of simple construction but so designed that ‘is great skill is necessary if the blade is to be prop erly sharpened. m”,C rods serving also as guide members for a sepa rate whetting or sharpening element. Additional features of the present invention will become evident from the following speci?ca~ tion of the safety razor blade sharpener, with reference to the accompanying drawings, on , , Figure 3 is a plan view of the blade holder, and Figure 4 is a plan view of the grooved mem ber, carried by the frames shown in Figures 1 and 2; The present invention avoids the disadvantages of the known whetting and sharpening devices Figure 5 is a plan view of the blade carrier as illustrated in Figures 1 to 4 in slightly modi?ed referred to. The apparatus "according to the present invention is advantageously distinguished member in dotted lines; ‘from those now on'the market by its extremely simple construction, and low cost. a The apparatus has ‘no complicated construction‘ or mechanism to be easily worn out or broken; it is of almost unlimited duration. The operation of the appa ratus is" of such simplicity that it may be per formed by anybody, the apparatus being so con structed that a whetting or sharpening contrary to the cutting-edge of the safety razor blade is rendered impossible. The whetting operation is always e?icient and never fails, because the in clination and the counter-pressure of the safety razor blade under treatment are so provided for that perfect‘whetting or sharpening is secured. form, showing the blade holder and grooved ' 20 ' _ Figure 6 is a perspective View of the blade car rier as shown in Figure 5 with a special whetting element placed thereon; ' ' ‘ Figure 7 shows by way of example only, a suit able whetting and sharpening element in plan view and cross section, respectively; Figure 8 is a perspective view of a whetting and sharpening element in a modi?ed form also shown by way of example only. In these figures the same reference numerals refer to like or corresponding parts shown in dif ferent views. , The razor blade Whetter or sharpener, accord ing to the present invention and as shown on the The invention consists‘in a device for use in accompanying drawings, comprises a blade’ car— whetting or sharpening razor blades, comprising two superimposed in?exible frames having a rec rier as shown in Figures 1 to 6, and a whetting or tangular aperture therethrough for the blade, slidably arranged blade holding means adapted and 8. The blade carrier'device according to the inr~ '40 to support the blade in a plane at right angles to the frames, and retaining means provided with a pair of short, ‘relatively narrow notches. into which the side edges of the blade extend. Thus frames i are secured together by screws, nails, whetting or sharpening of the blade can be =5 effected by moving a finger, or suitable whetting element, along the frames transverse to the blade with flexure of the latter during passage of the ?nger or element thereover. The apparatus according to the invention, also comprises the feature that the superimposed sup~ porting frames are provided with rods arranged along the longitudinal edges thereof, said rods being sufficiently high to permit the safety razor sharpening element as illustrated in Figures '7 vention consists of two superimposed supporting frames l of any suitable material each having one end shaped to form a handle 2. The two or any other suitable means that also serve to secure a spacing frame 3 between them, the spac ing frame being cut out at the central portion to provide a ?at space for the purpose of receiving a blade holder 4 and a retaining member 5. The frames I each have a rectangular central slot 5 and one or more longitudinal slots 1, the latter 50 for receiving projections 8 provided on the blade holder 4 whereby the blade holder is guided in its blade carrier to be placed on a table or flat sur movement, which can be e?ected by a small handle or button constituted by one of said pro face, without said blade'touching the surface, said jections 8. ‘ 55 2 2,116,038 The slidable blade holder 4 comprises a comb like portion 9 having three projections or teeth Ill. The same is of sheet material and is slid ably arranged within cut out portions of the spac ing frame 3 between the two supporting frames I, in such a manner that its projections or teeth It! may be moved to project over the central slots 6 of the frames l in order to engage the usual perforations of the razor blade to be sharp 10 ened and to normally carry the latter in a plane at right angles to said supporting frame, the blade being readily disengaged by withdrawing ening by using his own ?nger instead of the special whetting or sharpening element as illustrated. The device is used as follows: Suppose the safety razor blade carrier is to be used in the condition shown in Figures 1 to 4, the blade holder 4 is withdrawn, by moving the projection or button 8 along the slot 1 until the teeth l0 extend only over less than half of the rectangular central perforation 6 provided in the supporting frames I. The safety razor to be Whetted or sharpened is now inserted in the notches or grooves 13 of the retaining member the teeth Ii! of the blade holder 4 from the central ‘ 5 so that the usual perforations of the razor blade slot or aperture 6 of said frames. 15 7 - The retaining member is of sheetgmaterial, and has extensions ll each with a projecting centre portion l2 and a small notch l3. Thev retaining member is secured to one of the supporting frames I in such a manner that the notches or grooves are situated immediately above the centre of the side edges of the perforation 6. The grooves re ceive the ends of the razor blade to be whetted or sharpened and serve to retain the blade car ried by the comb like portion 9 of the blade holder 25 4 from sliding on the teeth In of said comb like portion. The width of the grooves I3 is preferably so calculated that a razor blade retained therein may have a limited movement of rotation around its 535 central axis, but offers resistance to further movement so as to become ?exed to the correct sharpening angle during sharpening as herein after explained. are at the same level as the projections or teeth ID of the blade holder 4. The latter is then moved 15 so that said teeth extend through the usual perfo rations of the blade. The blade is thus held in a vertical position ready to be submitted to the action of the whetting element I 4, which is simply placed upon the upper supporting frame I and 20 slid towards the razor blade, so that when it con tacts with the latter it will incline and flex the razor blade, which owing to its resilience will offer resistance, while with continued movement it passes over the cutting edge of the blade, ef 25 fecting a whetting action thereon on one side of the edge, whereupon the other side is similarly treated by moving the whetting element back to its initial position. It Will'be understood that the whetting element has to be passe-d completely .30 over the razor blade, so that the latter by its own resilience may strike back to its vertical position, before the whetting element is returned. A separate whetting or sharpening element 14, not forming part of the invention, adapted to be In this manner it is impossible to effect a whet used in connection with the razor blade carrier the razor blade. Further, it will be appreciated that whenthe whetting element is moved to- and fro several times, both surfaces of the cutting according to this invention and as shown by way of example only in Figures 6 and '7 comprises a simple block of any suitable material of square cross section, preferably .in the form of a rhom boidal parallelopiped, having the side surfaces covered or coated with different materials, e} g. leather, l5, willow wood, I 6, glass, l1, and slate, ting operation contrary to the cutting edge of .35 edge on one side of the razor blade are uniformly whetted or sharpened, and that by simply chang 40 ing the contact surface of the whetting element, the whetting vor sharpening may be readily ef fected ?rst with one material such as leather, and thereafter with another material such as glass or the like, in order to secure a proper shav section and may be of the form as shown by way ing condition of the cutting edge of the razor 45 of example only in the Figure 8, in which two blade. In order to whet or sharpen the other different materials, e. g. leather l5 andrwillow cutting edge of the razor blade, it is not neces wood l6 are arranged endwise one adjacent to’ sary to touch the same; the blade-carrier, device the other on a curved surface of the element, the is simply turned over and the opposite surface opposite side of the latter being provided with thereof as a guide for the sharpening element. 50 small cylindrical rods of glass I 'l and slate l8. When using the carrier device as illustrated in In this way the element I4 also provides for four Figures 5 and 6 in connection with the whetting different whetting and sharpening surfaces and and sharpening element l4 of Figure 7, in the conveniently comprises some kind of a handle I9. Way as clearly shown in the Figure 6, it will be When using the ?rst described whetting or noted that the bars 20 properly guide the whet 55 sharpening element l4, Figure '7, the blade‘ car ting element in such a way that the latter when rier may conveniently be provided with four bars moved to and fro over the razor blade, it con 20 ?xed along the longitudinal edges of the sup tacts therewith under a certain angle with re 60 porting frames l as shown in Figures 5 and 6, spect to the position of the blade and thus is still said bars being sufliciently high to permit the more effective in the whetting and sharpening 60 blade carrier device with the safety razor blade of the same. After completing the whetting and inserted therein to be placed on a table or the sharpening operation, the blade holder 4 is with l8, or the like. This element I4 may also be of any other cross 45 like, without the latter touching the blade. Said bars thus support the blade carrier device, and the handle 2 may be readily dispensed with. On the other hand and what is more important, the bars 20 serve as guide members for the whetting element l4, Figure 7, to be used in connection with said safety razor blade carrier. The whetting or sharpening element as shown in Figure 8 is designed to be used in connection with the blade carrier according to the Figures 1 and 2, and it has to be stated that with said blade carrier any person may effect whetting or sharp drawn, and the blade being in vertical position may be taken out by hand, without it being neces 65 sary to touch the cutting edges thereof. From the preceding description it will be readily understood and perfectly appreciated that the device according to the present invention, is not only advantageous owing to its simple construc 70 tion, its low cost and its long duration, but that it is also more efficient and easier to handle than most of the known whetting and sharpening de vlces. It will be further understood that the present 75 3 2,116,038 invention is not restricted to the particular em bodiments as described and shown on the ac companying drawings, but that modi?cations may be introduced therein without departing from the scope of the following claims. Having thus described my invention, I claim as new and desire to secure by Letters Patent:-- 1. A device for use in whetting or sharpening safety razor blades, comprising, two- superimposed 10 in?exible frames having an aperture therethrough for a blade, blade holding means slidably ar ranged between said frames and adapted to be moved in and out of said aperture and to freely support the blade within said frames normally 15 in a plane perpendicular to said frames, and blade retaining means also arranged-between said frames and provided with a pair of short, rela tively narrow notches into which the side edges of the blade extend; and upstanding ribs dis 20 posed on the upper surface of said frames to accommodate a separate whetting element there between, sharpening of the blade being effected by to and fro sliding movement of the whetting ele ment across the blade with ?exure of the latter 25 during passage of the whetter thereover. v 2. A device for use in whetting or sharpening safety razor blades, comprising two superimposed, rigidly interconnected in?exible frames with one end thereof shaped as a handle, said frames 30 being spaced apart by an interposed spacing frame, said frames having an aperture there through to receive a blade, blade holding means slidably arranged between said frames and adapt ed to be moved in and out of said aperture and 35 to freely support the blade within said frames nor mally perpendicular to said frames, said blade holding means consisting of sheet material and comprising a comb like portion adapted to en gage the perforations of the blade to be sharpened and a body portion provided with projections ex tending into longitudinal slots in the ?rst-men tioned frames for moving and guiding the blade holder for engaging or disengaging the blade, and blade retaining means also arranged between said frames and provided with a pair of short, rela tively narrow notches into which the side edges of the blade extend, whereby sharpening of the blade can be effected by sliding movement of a person’s ?nger or separate whetting element ‘ along the frames across the blade with ?exure of the latter during passage of the whetter there over. “3. A device for use on whetting or sharpening safety razor blades, having a slidable blade holder of sheet material, said blade holder comprising a comb like portion and a rearwardly extending body portion with one or more vertically extend ing projections, a blade retaining member of simi lar sheet material having lateral extensions each provided with a short relatively narrow notch, two superimposed frames for supporting said blade holder and said retaining member, a spacing frame between said superimposed supporting frames providing between the latter the required space for receiving and housing said blade holder and said retaining member; a central rectangular aperture in said supporting frames into which ex tend said comb like portion of the blade holder and said retaining member, and Within which the blade to be sharpened is held and retained during the whetting or sharpening operation. 35 ROBERT ALEXANDER FERDINAND OHLENDORF.