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parts A a2 a a' a3 a4 a4 a3 a2 Fig1 Fig1 a4 a' a4 a3 a2 a A a3 a2 Fig2 Fig2 B B' a4 A b A a4 a3 Fig3 Fig3

Blade for Mark Cross Razor

PatentUS1047617

InventionBlade for Safety-Razor

FiledTuesday, 1st October 1912

PublishedTuesday, 17th December 1912

InventorLeonidas H. Cress

OwnerFederal Tool Company

LanguageEnglish

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

United States Patent Office.

Leonidas H. Cress, of West Newton, Massachusetts, assignor to Federal Tool Company, of East Boston, Massachusetts, a corporation of Massachusetts. Blade for Safety-Razor
1,047,617 Specification of Letters Patent. Patented Dec. 17, 1912.
Original application filed July 19, 1910, Serial No. 572,743. Divided and this application filed October 1, 1912. Serial No. 723,352

To all whom it may concern:

Be it known that I, Leonidas H. Cress, a citizen of the United States, residing in West Newton, in the county of Middlesex and State of Massachusetts, have invented certain, new and useful Improvements in Blades for Safety-Kazors, of which the following is a specification.

The application for this patent is a division of my former application No. 572,743, filed July 19, 1910, patented July 4, 1911, No. 996,837.

My present invention relates to blades for safety razors of the kind shown in my former patent. In this class of razors the blades are commonly made thin to economize material, and to facilitate manufacture, and it is desirable that the blade should be provided with devices for positioning it in the holder and for preventing it from moving sidewise therein.

According to my invention I provide a blade made of thin steel, of proper thickness to hold an edge but not so thin as to be flexible or necessarily so as no flexible quality in the blade is required. It is formed on opposite sides near its rear edge with laterally projecting lugs which serve as handles or finger-rests when inserting the blade in the holder. These lugs are extended rearwardly, serve in positioning the blade and prevent sidewise movement thereof.

In the accompanying drawings.:—Figure 1 is a top plan view of a safety razor blade made in accordance with my invention. Fig. 2 is a perspective view thereof. Fig. 3 is a perspective view of a portion of a safety razor with my improved blade in place, parts of the holder being broken away for the purpose of illustrating how the blade is disposed in the holder.

The blade A has a straight sharp cutting edge a and a parallel rear edge a′ of substantially the same length. The side edges a2 of the blade are straight and parallel with each other. The blade is formed on opposite sides near its rear edge with laterally projecting lugs a3 which serve as handles or finger-rests when inserting the blade in the holder. These lugs are extended rearwardly at a4 beyond the rear edge a′ and serve to position the blade in its holder and prevent sidewise movement of the blade therein.

Fig. 3 shows a safety razor of the kind described in my former patent and indicates how the blade is seated therein. The blade-holder comprises two members, B, B′, having a shallow space between them to receive the blade. These two members are connected at their rear edges by a flange b. To insert the blade it is held by the thumb and first finger which engage the laterally projecting lugs a3 and it is moved rearwardly until the rear edge a′ of the blade engages the flange b and the extensions a4 of the lugs a3 lie at opposite ends of the flange b. When thus disposed, the blade is properly positioned and sidewise movement thereof is prevented.

While the blade is especially designed for use in the particular blade-holder shown it may be used in safely razors of different construction.

I claim as my invention:—

1. A safety razor blade having front and rear edges of substantially the same length and formed on its opposite side edges with laterally projecting lugs having portions extending rearwardly beyond the rear edge of the blade.

2. A safety razor blade substantially rectangular in shape provided with a cutting edge on one of the longer sides, lugs on the corners opposite the cutting edge extending laterally beyond the sides and rearwardly beyond the back of the blade.

In testimony whereof, I have hereunto subscribed my name.

Leonidas H. Cress.

Witnesses:

Charles T. Hawes,

B. H. Bean.