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Single Edge Razor

PatentUS863889

InventionSafety-Razor

FiledSaturday, 3rd March 1906

PublishedTuesday, 20th August 1907

InventorFrank E. Wilcox

LanguageEnglish

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A PDF version of the original patent can be found here.

United States Patent Office.

Frank E. Wilcox, of Mechanicsburg, Pennsylvania. Safety-Razor.
No. 863,889. Specification of Letters Patent. Patented Aug. 20, 1907.
Application filed March 3, 1906. Serial No. 303,974

To all whom it may concern:

Be it known that I, Frank E. Wilcox, a citizen of the United States, residing at Mechanicsburg, in the county of Cumberland and State of Pennsylvania, have invented new and useful Improvements in Safety-Razors, of which the following is a specification.

The object of my invention is the production of a safety razor which shall be simple in construction, comparatively cheap in first cost, provide means for securely holding a detachable blade in operative position, and also having means for positively adjusting the blade relative to the guard teeth.

With these ends in view my invention consists in certain novelties of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

The accompanying drawings illustrate one main example and one modification of the physical embodiment of the invention constructed according to the best modes I have so far devised for the practical application of the principle.

Figure 1 is a perspective view of the complete razor with the parts assembled and as it appears when ready for use. Fig. 2 is a vertical section of a modification of Fig. 1 taken through the base or fulcrum plate, the holding-plate, and the blade. Fig. 3 is a front face view of the base or fulcrum plate. Fig. 4 is a view of the holding-plate showing the rear surface thereof. Fig. 5 is a view of the blade in perspective. Fig. 6 is a view in perspective of a modified form of the razor.

Referring to the several figures, the numeral 1 designates a handle which may be of metal and milled as shown; 2, the threaded end of the handle, which may be of smaller diameter than the part thereof which is to be grasped by the hand; 3, the base or fulcrum plate; 4, the plate portion thereof; 5, a perforated and threaded lug or projection located at substantially right angles to the plate portion and integral therewith; 6, the guard teeth at the edge of the plate, which teeth are integral with the plate and of any suitable number and shape, and curve more or less relative to the plane of the blade; 7, holes in the body of the plate, the lower portions of which holes are narrowed to form retaining slots for the shanks of the headed pins on the holding-plate; 8, the holding-plate; 9, the beveled or curved edge of the holding-plate; 10, two headed pins secured in the rear surface of the holding-plate; 11, a bearing flange for the threaded end of the handle; 12, the detachable blade; 13, the cutting edge of the blade; and 14 are two slots in the upper edge of the blade within which are located the shanks of the headed pins 10 when the blade is in position for use between the base and holding-plate. Upon the front surface of the base or fulcrum plate two projecting lugs 15 may be provided each having a threaded hole 16 for the reception of a set screw 17, the ends of which screws are adapted to bear upon the top edge of the blade, as shown in Fig. 2.

Fig. 6 shows a modified form of construction wherein the base has perforated lugs 18 within which perforations are located the journals 19, formed at the ends of the holding-plate.

The relative locations of the several parts are clearly shown in the drawings. The blade is securely held in position by the lower edge of the holding-plate pressing the same against the front surface of the base plate when the threaded end of the handle is advanced by revolving the same with its extreme end in frictional contact with the bearing flange 11 of the holding-plate.

The headed pins 10 and the journals 19 in the modification, constitute fulcrum points about which the holding-plate turns. The set screws 17 obviously serve to adjust the blade so that its edge will occupy the proper relative position between the teeth on the base plate and the lower edge of the holding-plate. The handle may be made tubular, as shown, with the opening at one end internally threaded and the threaded end 2 adjustable therein, or any other suitable construction adopted.

What I claim is:

1. A safety razor comprising a rigid fulcrum or base plate having guard teeth at one edge; a holding plate; means for pivoting the holding plate to the base plate, said pivoting means being located between the top and bottom edges of the two plates; a blade located between the lower adjacent surfaces of the two plates and below the pivots; and a threaded handle engaging threads at the upper edge of one of the plates and frictionally bearing against the other plate.

2. The combination, in a safety razor, of a base-plate having guard teeth at one edge thereof and a threaded opening adjacent the opposite edge; a holding-plate; means for pivoting the holding-plate between its top and bottom edges to the base-plate; a blade located between the lower portions of the base-plate and holding-plate; a threaded handle; and set screws in connection with one of the plates for adjusting the blade relative to the teeth.

3. The combination, in a safety razor, of a base plate provided with guard teeth at one edge, a threaded perforation at the other edge, and with holes through the body thereof; a holding-plate with headed pins; a blade; and a handle with a threaded end; said holes in the base-plate being narrowed to form retaining slots for the shanks of the headed pins upon the holding-plate.

4. The combination in a safety razor, of a base plate having guard teeth at one edge, a perforation at the opposite edge and slotted holes through the body thereof; a holding-plate having headed pins, the heads being adapted to pass through the holes in the base plate and the shanks of the pins to engage the slotted portions thereof and lock the holding-plate; a blade; and a handle adapted to rotate the holding-plate relative to the base plate and grip the blade between the lower portions of the holding-plate and base plate.

In testimony whereof I affix my signature in presence of two witnesses.

Frank E. Wilcox.

Witnesses:

F. R. Peckman,

J. F. Bricker.