US1281664A - Razor-blade stropper. - Google Patents

Description

R. W. HOSENDAHL.

. RAZOR BLADE STROPPER.

APPLICATION FILED MAR. 5, 1918.

329281966@ mmm 06A I5, 1918,

' BEYNOLD W. ROSENDAHL, OF PHILADELPHIA, PENNSYLVANIA.

RAZOR-BLADE STROPPER.

Speciication of Letters Patent.

Patented ct. 15, 1918.

Application led March 5, 1918. Serial No. 220,449.

To all whom t may concern.'

Be it known that I, REYNOLD WV. ROSEN- DAHL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Razor-Blade Stroppers, of which the following is a specification.

One object of my invention is to provide a device which will securely hold safety razor blades and permit them to be stropped.

Another object is to so construct my 1nvention that while it securely holds the blade it permits the blade to slightly flex or bend due to the stropping action so as to conform to the surface of the razor strop or hone.

A still further obj ect is to so construct my invention that the blades can be easily secured in position and can be easily removed therefrom.

Another object is to make my invention of simple construction and yso that it can be easily manipulated to efficiently sharpen the razor blade.

These objects, and other advantageous ends which will be described hereinafter, ll attain in the following manner, reference being had to the accompanying drawings in which Figure 1 is a perspective view of my improved razor blade stropper,

Fig. 2 is a fragmentary top plan view,

Fig. 3 is a side elevation of Fig. 2, and

Fig. 4 is a section taken on the line 4-4 of Fig. 2, and drawn on a slightly enlarged scale.

Referring to the sent clamping jaws drawings, 1 and 2 repre- A which have handles 3' and 4, respectively. These handles are pivoted together at 5. rl`he handles and jaws are preferably stamped out of sheet metal, the handles being substantially U-shape in cross section and so arranged that the handle 4 is adapted to move within the leg portions 6 .and 7 of the handle 3, as clearly shown in Fig. 1. j

The handle 3 has an opening 8 through which the forward end of the handle 4 projects and in this manner the handles 3 and 4 cross each other, and a separating pivotal movement of the handles 3 and 4 serves to separate the jaws 1 and 2. Each of jaws 1 and 2 is made concaved on its inner surface, as shown at 9, and is convex on its outer surface, as shown at 10.

The jaw 2 has two nubs or lugs 11 projecting inwardly and toward the jaw 1, as clearly shown in Figs. 2 and 4. These lugs 11 are preferably formed by indenting the outer surface 10 of the jaw 2. The jaw 1 at places opposite the lugs 11 has holes 12, for a purpose hereinafter described.

Pads 13 and v14, which are preferably made of felt or other soft cloth, are secured to the inner surfaces 9 of the respective jaws 1 and 2. These pads 13 and 14 have holes 15 and 16, respectively, which allow the lugs 11 to project therethrough when the clamping jaws 1 and 2 are moved together, such for example as in the position illustrated in the drawings. The lugs 11 are provided to enter holes 17 provided in the razor blade 18.

1n the use of my improved stropper a separating movement of the handles 3 and 4 causes the jaws 1 and 2 to separate. The razor blade 18 is then placed upon the pad 14 so that the lugs 11 pass through the holes 17 of the razor blade. It will be noted that the lugs 11 are olf center, or in other words are located to one side of the longitudinal center line of the jaws 1 and 2. By this construction and by having the holes 17 of the razor blade 18 located centrally between the oppositely 'disposed cutting edges of the razor blade, 1 secure an overhang of the razor blade, or in other words permit one cutting edge of the razor blade to project beyond the outer side edges of the jaws 1 and 2 while the other cutting edge is located a safe distance inside of the opposite outer side edges of the jaws 1 and 2.

After the razor blade|18 has been thus placed in position the handles 3 and 4 are moved together and the jaw 1 will move its pad 13 into engagement with the upper surface of the blade 18 permitting the tops of the lugs to project through the holes 15 in the pad 13 and into the holes 12 in the jaw 1. It will thus be noted that the razor blade 18 is actually held between the two pads 13 and 14 and thegripping of the handles 3 and 4 during the stropping action of the blade 18 will firmly hold the blade between the jaws but will permit the blade to flex or bend slightly.

The convexity of the outersurfaces 10 of the jaws 1 and 2 permits a smooth sliding handles from clearly shown at 19 in Fig. 4. 1t will be further noted that by bending the handles so as to be substantially U-shape in cross section and to lap each other, as above described, a curved or twisted portion 2O is provided between the handle 3 and jaw 1 and a substantially similar curved or twisted portion 21 is provided between the handle t and the jaw 2. r1`his twisted portion greatly adds strength to the junction between the jaws and the handles and also provides a comfortable abutment for the fin-y gers when' the stropper is in use.

1t will be noted that in addition to providing a resilient mounting for the blade 18 the pads 13 and ll serve as a means of protection for the edge of the blade 18 which is positioned. between the two jaws 1 and 2. 1n other words these pads 13 and 14 prevent the edge from becomin dull as would be the case if the interpose edge were to come in Contact with the metal of the jaws 1 and 2. Thus the pads 13 also prevent one edge from becoming dull while the other` edge is being sharpened.

As a means for locking the two handles 3 and a together 1 provide a clip 22 which is substantially U-shape and has its. opposite ends 23 pivoted within holes 24 in the handle 3. 'lhis clip is located near the outer ends of the handles 4 and 5 so that it can be swung around the ends of the the position shown in dotted lines to the position shown in full lines. The handle l is preferably notched on its top, as shown at 25, and the clip is of such length that it will first compress or move the handles together even after the blade has been clamped between the jaws 1 and 2; in other words the handles are slightly sprung together until the clip enters the notch, then the resiliency ofthe handles causes them to spring apart slightly and the clip will resist this latter mentioned springing action to firmly hold the ,blade in position.

While 1 have described my invention as taking a particular form, it will be undermerecestood that the various parts of my invention may be changed without departing from the spirit thereof, and hence 1 do. not limit myself to the precise construct-ion set forth, but consider that 1 am at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what 1 claim as new and desire to secure by Letters Patent is:

1. A razor blade stropper including two clamping jaws having integral sheet metal handles pivoted together, one of said handles having an opening therein through which the otherl handle projects to provide` a pivotal crossing for the handles, said handles being made U-shape in cross section and including a twisted portion whereby the sides f the handle extend in planes substantially at right angles to the width of the jaws, to provide a comfortable curved abutment for the fingers when the stropper is in use, substantially as described.

2. A. razor blade stropper including two clamping jaws having handles pivoted to gether, one of said handles having an opening therein through which the other handle projects to provide a pivotal crossing for the handles, one of said handles at one side of the pivotal crossing being U-shape in cross section, the other of said handles having a part adapted to move between the leg portions of said U-shaped handle; and a substantially ll-shape clip having its leg portions pivoted to one of the adapted to straddle the other handle by being swung around the ends of the handles, said latter mentioned handle having a notch adapted to receive the looped end of said clip, substantially as described.

1n testimony whereof 1 have signed my name to this specification in the presence of two subscribing witnesses.

REYNOLD W. ROSENDHL Witnesses:

MARY A. 1NGLAR, Cries. E. Porre.

handles and

Images