InventionRazor and Razor Blade
FiledTuesday, 16th April 1935
PublishedTuesday, 17th August 1937
InventorEarl C. Bunnell
This patent was not assigned to John King.
Parts not referenced in the text: None
Parts not referenced in the images: None
This invention relates to safety razors, and more particularly to a safety razor of the type wherein the blade is reciprocated longitudinally during the cutting operation.
In U. S. Letters Patent No. 1,890,733, there is disclosed a safety razor of the type herein considered in which there is provided a slidable saddle having a pin engaging a cam roller and also reciprocating a blade. Such a structure has been found objectionable in that the slidable saddle must be accurately mounted with relation to the cam roller, and the cost of assembling the parts of the razor is relatively large. Also, the saddle necessitates raising of the cam roller, which prevents convenient shaving on the upper lip and around the nose.
It is, therefore, an object of this invention to provide a safety razor of the reciprocating blade type in which the use of a saddle is eliminated, thereby materially reducing the cost of manufacture of the razor, and enabling easy and convenient shaving of all portions of the face.
A further object is the provision of a safety razor of the reciprocating blade type employing a blade provided with a centrally positioned pin or protuberance engageable with a cam roller, thus eliminating the necessity of saddles or other intermediate instrumentalities for effecting the reciprocation of the blade.
These and other objects are attained by the novel construction, combination and arrangement of parts hereinafter described and shown in the accompanying drawing, constituting a material part of this disclosure, and in which:
Referring to the drawing, the razor is shown to include a blade supporting plate
Projecting upwardly from the plate
At one end thereof, the supporting plate
The retaining plate
In operation, the blade
When the retaining plate
From the above description it will be seen that there has been provided a safety razor of the reciprocating blade type which is of extremely simple structure, thus enabling the manufacture of the razor at a very low cost, and eliminating the necessity of providing a slidable saddle which must be accurately and carefully mounted for proper operation. It will be noted that the blade is directly reciprocated by the cam roller without employing intermediate instrumentalities. This arrangement considerably lightens the weight of the moving parts and consequently enables easy operation. By eliminating a slidable saddle, the cam roller can be considerably lowered so that all parts of the face, including the upper lip and beneath the nose, can be conveniently shaved.
The foregoing disclosure is to be regarded as descriptive and illustrative only, and not as restrictive or limitative of the invention, of which obviously an embodiment may be constructed including modifications without departing from the general scope herein indicated and denoted in the appended claims.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:
1. In a safety razor, a razor blade support, a plate for retaining a blade on the support, a razor blade having parallel cutting edges slidably mounted on the support and having an integral upwardly projecting pin centrally positioned at right angles to the blade, and cam means rotatably mounted on the plate and cooperating with the pin to reciprocate the blade.
2. In a safety razor, a razor blade having parallel cutting edges having a centrally positioned integral pin projecting from each side of the blade said pin being at right angles to the plane of the blade.
3. In a safety razor, a razor blade support, a plate for retaining a blade on the support, a razor blade having parallel cutting edges slidably mounted on the support and having an integral centrally positioned protuberance at right angles to the plane of the blade, and cam means rotatably mounted on the plate and cooperating with the pin to reciprocate the blade.
4. In a safety razor, a razor blade support, a plate for retaining a blade on the support, a razor blade slidably mounted on the support and having an integral centrally positioned pin projecting from each side thereof, and cam means rotatably mounted on the plate and cooperating with the pin to reciprocate the blade.
Earl C. Bunnell.