US2470436A

US2470436A - Razor blade stropper

Info

Publication number: US2470436A
Application number: US670749A
Authority: US
Inventors: Edward J Gray
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-05-18
Filing date: 1946-05-18
Publication date: 1949-05-17
Anticipated expiration: 1966-05-17

Description

Patented May 17, 1949 RZRVBLADISTROPPER EawaraJ.- Gray, NewYork, N. Y.

" Amincaticn-May 1s, 194e;1 serial No; `670,749

2 Claims.

f *"fThe `invention relates tio ade'v-ice for-stropping safety razor blades.

Where the safety razor blade is removed from the holder for stropping, there is danger of injury to the user in this time-consuming operation. Moreover, such stroppers become dirty and lose eicacy due to wear. When the safety razor does not admit of removal of the blade therefrom, the problem of stroppin-g has heretofore baffled solution.

It is among the objects of my invention to provide a simple, self-cleaning device that is capable of stropping any safety razor blade quickly and effectively without removing the blade from its holder and which inherently will indicate when the stropping device should be replaced by a new one.

According to the invention, these objects are accomplished by the use of a pointed metal pin to be guided by the guard of a safety razor holder for light rubbing movement along the edge of the razor blade to be stropped in situ in said holder. The pin desirably has a handle knob serving as a plug or stopper which holds the pin in a container with sunicient lubricating oil therein to submerge the pointed end of the stropping pin.

In the accompanying drawings in which is shown one of various possible embodiments of the several features of the invention,

Fig. 1 is a cross sectional view of the device,

Fig. 2 is a detailed View showing the stropping operation, and

Fig. 3 is an enlarged fragmentary View showing the stropping operation.

Referring now to the drawings, a pin I I, preferably of metal of a slightly less degree of hardness than that of the conventional safety razor blade is afxed at its root end I2 to a stopper or handle I3. The pin is tapered at approximately a 15 degree angle as at I4 so as to form a finely pointed tip I5. The taper of the pin conforms to the correct angle for straightening the edge of any safety razor blade I'I while held in situ in a safety razor holder I8. Stopper I3 fits securely in the mouth of a container or bottle I9 containing a lubricating oil 20 which serves as a cleaner for the pin and in use has the further function pointed out hereinafter. As the pin picks up some of the lubricating oil on each use, the number of uses of the pin is limited by the quantity of lubricating oil in the container.

Operation When not in use, container I9, which holds -nhefllubncatmgoir vz-u and the fpm-'1| Iris `securely closed by means of stopper [3. Before each shave, pin II is withdrawn from the container I9 carrying with it a small quantity of lubricating oil 20.

The tip I5 of the pin is placed between the edge I6 of the safety razor blade I1 and the guard ,2| of the safety razor holder I8 until arrested by the blade and the handle I3 tilted downward slightly until arrested between the guard 2l and the blade edge I6, so that the conical portion 22 of the pin is in contact with substantially the entire width of the ground edge I6 of the blade at its underface. The ne point or tip I5 of the pin reduces the danger of the pin contacting and injuring the cutting edge while it is being inserted thereunder. The pin is rubbed lightly along the underside of the blade edge IB, one or more times thereby straightening and smoothing the ground edge of the blade that had been distorted by previous use. The small quantity of lubricating oil on the pin makes the stropping action more effective and reduces the rate of wear of the pin tip caused by the metal to metal contact of the pin and razor blade.

Thus, the stropping pin utilizes the guard of the safety razor holder, both as a gauge for automatically aligning the conical tip of the pin so that it is in proper position with respect to the ground edge of the razor blade for eflicient stropping action and as a guide for the pin tip as it is being passed lightly along the underside of the blade edge. As shown in Fig. 3, the conical portion 22 of the pin is in contact with the entire width of the undersurface of the ground edge I6 of the razor blade. The resiliency of the razor blade will cause the ground edge I6 to make such contact even though the position of the pin tip may vary slightly from the ideal position shown in Fig. 3 or depart therefrom in the course of the stropping operation. This will impart continuity and uniform smoothness to the ground edge of the razor blade.

As many changes could be made in the above construction, and many apparently widely different embodiments of this invention could be made without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. The method of stropping safety razor blades mounted in a safety razor blade holder, which consists of placing the finely pointed tip of a pin of hardened material between the underside of a safety razor blade edge mounted in said holder and the guard of said holder directly beneath said razor edge so that the conical portion of said pin is in contact with the underside of said razor edge, and lightly rubbing said conical portion of said tip along said razor edge one or more times prior to each use of said razor blade.

2. The method of stropping safety razor blades mounted in a safety razor blade holder, which consists of placing the iinely pointed tip of a lubricated pin of hardened material between the underside of a safety razor blade edge mounted in said holder and the guard of said holder directly beneath said razor edge until arrested by said blade edge, and tilting the end of said pin downward slightly until arrested between said guard and said blade edge so that the conical portion of said pin is in contact with substantially the 4 entire width of the ground edge of the blade at its underface, and lightly rubbing said conical portion of said tip along said razor edge one or more times prior to each use of said razor blade.

EDWARD J. GRAY.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS