US2298711A - Razor blade holder - Google Patents

Description

' M. MALECKI RAZOR BLADE HOLDER FiledSept. 11, 1941 Oct. 13, 1942.

I N V E N TO R /CHAEL MALECK/ m W1 ATTORNEY Patented Oct. 13, 1942 UNITED STATES PATENT OFFICE RAZOR BLADE HOLDER I Michael Malecki, Brooklyn, N. Y. Application September 11, 1941, Serial No. 410,396

'5 Claims. (01. 30 333) It-is an object of the present invention to provide a device of the class described which is characterized by simplicityof construction, and which is easier to operate than devices heretofore known or used.

- It has been proposed heretofore to clamp razor blades between a pair of members connected together by pins located in one member and extending through openings in the other member and so constructed that relative shifting in one direction causes them to clamp the razor blade therebetween by a wedging action. A serious disadvantage of such an arrangement is that it is frequently difficult to release the blade for removal by reason of the tightness with which the two clamping member are wedged together. In order to overcome this difficulty it previously has been considered necessary to provide special releasing'levers for forcing the clamping membersout of wedging engagement. It is an object of my invention to provide a holder which can easily bereleasedwithout the use of such auxiliary levers.

Other objects and advantages of my invention will appear as the description proceeds. In the drawing, wherein I have illustrated a preferred embodiment of my invention,

Fig. 1 is a face view of my improved device showing the application of my invention to a holder for safety razor blades, the parts being shown in clamping position.

Fig. 2 is an enlarged detail sectional view taken as indicated at 22 in Fig. 1; and 3 is a view similar to Fig, 2 but showing the parts in the position which they occupy during the insertion or removal of the blade.

Fig. 4 is an enlarged transverse sectional view on the line 4-4 of Fig. 1.

My improved holder consists in its general arrangement of a pair of bars l and I l which are connected together by suitable fastenings such as the screws I2 formed on or secured to the member I0 and extending through elongated openings or slots I3, I3 and I4 in the member H. The members If! and II are movable longitudinally relative to one another, and the connecting means are so constructed that relative shifting in one direction brings the members into position to clamp a razor blade [5 therebetween, as shown in Figs. 1 and 2. Shifting in the other direction brings the members l0 and II into the with the bevel'llof the slots I3 and I4.

relative positions shown in Fig, 3 to release the blade.

The slots'l3 extendlongitudinally of the bar II and, are tapered longitudinally as shown at I6 in..Fig. 1. Both the slots l3 and I4 are bevelled or tapered transversely of the bar II as shownat' H in Figs. 2 and 3. The fastenings l2 may conveniently consist of ordinary flat headed machine screws having bevels I8 cooperating The slot M has parallel sides, rather than being tapered longitudinally like the slots I3.

The bar I0 has a projection 19 formed thereon or secured thereto. In the embodiment illustrated, this projection I9 is formed by driving a pin into an aperture in the bar I0 so that it projects from the inner face of the bar. The projlectibnlS cooperates with an inclined surface 20 formedat the-inside of the bar II whereby upon relative longitudinal movement of the two bars in one direction, they are forced apart at the blade-receiving end. This separating movement of the bars at the blade-receiving end is permitted by the co-action of the securing elements I2 and the longitudinally tapered slots I3, the securing elements being arranged to ride up and down the longitudinal taper of the bevelled slots upon relative longitudinal adjustment of the bars. However, the engagement between the parallelsided slot I4 at the other end of the bar II and the cooperating securing element I2 is such that the bars are held together at this end for all positions of longitudinal adjustment thereof. Thus the bars are always held together at the righthand end as viewed in Fig. 1, while the cooperating engagements between the projection I9 and inclined surface 20, and between the securing elements I2 and the tapered slots I3 serve respectively to force the bars apart at the other end when moved from the position shown in Fig. 2 to the position shown in Fig. 3, and to force them together at that end when moved in the opposite direction. By holding the bars together at the outer end as described, the separating action is achieved with the use of a single projection I9 with its cooperating inclined surface 28.

Another important feature of my invention resides in so arranging the securing means that an end of one of the bars projects beyond the corresponding end of the other bar for all clamping positions of said bars. This is preferably accomplished by making one of the bars longer than the other, as shown in Fig. 1, wherein the bar I0 is longer than the bar II and projects beyond it at 2| when the bars are in clamping position.

With this construction, when it is desired to release the blade IE, it is merely necessary to tap the projecting end 2| of the longer bar l against a solid object, whereupon the inertia of the bar II will carry it into the position shown in Fig. 3, freeing the blade. Also, when a blade is inserted as shown in Fig. 3 and the bar I I has been moved to the left, the end 22 of the bar I0 may be tapped against a solid object to bring the bar ll into the clamping position shown in Fig. 2.

The bars may be constructed of standard metal shapes so that the device can be manufactured at very little cost. The preferred cross-sectional form is illustrated in Fig. 4, which view also shows the extreme compactness of the device. The exterior surfaces are curved, as at 23, so as to eliminate sharp corners, and to facilitate honing. The righthand end of the holder as viewed in Fig. 1 constitutes the handle portion of the device, and preferably is knurled or otherwise roughened so as to afford a gripping surface for the fingers while stropping.

It will be understood that while I have illustrated the device as used in holding a double edge razor blade, it can be employed with equal facility for holding single edge razor blades. Also, while the device is intended primarily for use in stropping or honing blades, it may also be used as a holder for blades for other purposes, as for a knife or scraper, etc. The terms and expressions which I have employed are used in a descriptive and not a limiting sense, and I. have no intention of excluding such equivalents of the invention described, or of portions thereof, as fall within the purview of the claims.

I claim:

1. A device of the class described comprising a pair of bars movable longitudinally relative to one another, meansfor securing said bars together to clamp a razor blade between them upon relative longitudinal movement of the bars in one direction and to free the blade upon relative longitudinal movement in the other direction, an end of one of the bars projecting beyond the end of the other bar in all clamping positions of said bars.

2. A razor blade holder comprising a pair of bars, one of said bars having a longitudinallyextending longitudinal tapered bevel-edged slot near one end and one of saidbars' having a longitudinally-extending slot whose sides are equally spaced along their length near the other end, securing means extending through said slots into the opposite bar, one of said bars provided with a longitudinally inclined surface at a point intermediate said slots, a projection on the other of said bars engaging said inclined surface whereby upon relative longitudinal movement of the two bars in one direction they are forced apart at the end provided with the tapered slot.

3. A razor blade holder comprising a pair of bars, one of said bars having a longitudinallyextending longitudinal tapered bevel-edged slot near one end and one of said bars having a longitudinally-extending slot whose sides are equally spaced along their length near the other end, securing means extending through said slots into the opposite bar, one of said bars provided with a longitudinally inclined surface at a point intermediate said slots, 2. projection on the other of said bars engaging said inclined surface whereby upon relative longitudinal movement of the two bars in one direction they are forced apart at the end provided with the tapered slot, and said slot of equally spaced sides and its cooperating securing means holding the bars together at the other end.

4. A razor blade holder comprising a pair of bars one of which has a plurality of longitudinal slots, at least one of said slots being tapered both transversely and longitudinally of the bar, securing elements on the other of said bars engaging said slots, the securing element which engages said tapered slot having a portion complemental to the transverse taper thereof riding up and down the longitudinal taper thereof upon relative longitudinal adjustment of the bars.

5. A razor blade holder comprising a pair of bars one of which has a plurality of longitudinal slots, at least one of said slots being tapered both transversely and longitudinally of the bar, securing elements on the other of said bars engaging said slots, the securing element which engages said tapered slot having a portion complemental to the transverse taper thereof riding up and down the longitudinal taper thereof upon relative longitudinal adjustment of the bars, an end of one of said bars projecting beyond the end of the other bar for all positions of relative longitudinal adjustment of the bars.

MICHAEL MALECKI.

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