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One Piece DE Razor

PatentUS851341

InventionSafety-Razor

FiledMonday, 18th September 1905

PublishedTuesday, 23rd April 1907

InventorHerbert Augustus Bullard

LanguageEnglish

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

United States Patent Office.

Herbert Augustus Bullard, of San Francisco, California. Safety-Razor.
No. 851,341. Specification of Letters Patent. Patented Apr. 23, 1907.
Application filed September 18, 1905. Serial No. 278,916

To all whom it may concern:

Be it known that I, Herbert Augustus Bullard, a citizen of the United States, and a resident of the city and county of San Francisco, State of California, have invented certain new and useful Improvements in Safety-Razors, of which the following is a specification.

My invention relates to safety razors, and has for its object to provide a razor of this class, of improved construction, simple, and economical.

I attain my object by the means illustrated in the accompanying drawings, of which

Figure 1 is a side view of my razor, Fig. 2 is a vertical transverse section of my razor with the blade attached, and Fig. 3 a top view. Fig. 4 is a view of my razor blade, and Fig. 5 is a vertical transverse sectional view of my holder with the blade removed.

Similar numerals of reference refer to similar parts throughout the several views, which are all on an enlarged scale.

My invention consists in a general way of the improved holder, the improved blade, and the improved means of securing the blade to the holder.

More particularly, and describing the holder 1, first, it consists of a sheet of spring metal stamped and shaped into substantially the form shown in the drawing. The guards 2, 3, usually provided in safety razors, are stamped out of the sheet along on lines somewhat near the extremities thereof. The sheet is folded at its center into two sides, and formed into angles along the aforesaid lines, the tops of said angles forming blade supports, and the ends turned outwardly to form part of the blade securing means 4, 5. The other part of the blade securing means is on the blade itself, and consists of the longer sides of an oblong aperture 7 in said blade. The spring of the metal of said holder is so set as to tend to throw the parts 4 and 5 away from each other, and to cause the aforesaid sides to spring outwardly against the said longer sides. Said sides are made of such size as to fit the sides supporting 4 and 5 snugly. The aperture 7 is made of such size as to admit the passage of the parts 4, 5 when they are pinched together. When they are released they spring outwardly to engage the blade, and secure it against the guards 2, 3.

Blade 6 consists of a sheet of metal having opposite cutting edges. It is provided with an oblong aperture 7, the center of which is nearer to one cutting surface than the other, whereby one cutting edge is caused to lie closer to the edge of its guard, than the other cutting edge lies to its corresponding guard, and thus enables the user to shave closely or not as he desires.

The holder is by the described construction a spring-box having open ends and two outwardly tending flat springs carrying guards and having a part supporting the blade and having its extremities bent outwardly. The outward pressure of the aforesaid flat springs is received by the longer sides of the aforesaid oblong aperture of the blade, and the outwardly bent portions 4, 5 act to secure said blade against the guard portion 2, 3, in co-operation with said longer sides.

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

1. A holder for safety razor blade, comprising a sheet of spring metal shaped to form two outwardly-pressing flat spring members joined at one end to form a finger and thumb hold, said members intermediate their ends bent to form an angular ridge constituting a blade support, guards formed along the apex of each angular ridge, the upper extremities of said spring members curved outwardly and downwardly in opposite directions to each other and constituting blade-securing means.

2. A blade for safety razors comprising a rectangular body having opposite side cutting edges and provided with an oblong aperture, the center of which is nearer one cutting edge than the other and one of which cutting edges is of greater width than the other cutting edge.

3. A safety razor blade comprising a body having opposite cutting edges and provided with an oblong aperture, the center of which is nearer one cutting edge than the other and nearer to one end of the body than to the other.

4. In a safety razor a blade having opposite cutting edges and an oblong aperture the center of which is nearer one cutting edge than the other.

5. A safety razor comprising a holder shaped out of a sheet of spring metal into two outwardly pressing flat springs joined at one end to form a finger and thumb hold, and provided with guards, blade supports and blade-securing means at the other end, in combination with a blade having opposite cutting edges and an oblong aperture the center of which is nearer one edge than the other, and the longer sides whereof are adapted to snugly engage said springs.

In testimony whereof I hereunto sign my name in the presence of two witnesses.

Herbert Augustus Bullard.

Witnesses:

Leo Mund,

Finlay Cook.