United States Patent Office.
Franz Josef Halbekann, of Solingen, Germany, assignor to the Firm of Wolferts & Co., of Landwehr, near Solingen, Germany.
Specification of Letters Patent.
Patented Apr. 23, 1907.
Application filed December 4, 1906. Serial No. 346,224
To all whom it may concern:
Be it known that I, Franz Josef Halbekann, a citizen of the German Empire, residing at Solingen, in the Province of Rhenish Prussia and Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Safety-Razors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such us will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to a safety-razor having a thin steel-plate blade, for example, the peculiarity of said razor being that for the purpose of clamping the blade in position it is provided with a snap-piece which in a manner similar to that in which the snap-pieces are mounted on clasps for braces, is pivoted or revolubly mounted on the frame or plate serving for supporting the blade, and in its closed position presses resiliently against the blade, and thereby holds it firmly in position.
This razor has the advantage that with extreme quickness the blades can be inserted in position on the razor, interchanged, and, in the case of double-edged blades, reversed.
One embodiment of a razor according to the present invention is illustrated by way of example in the accompanying drawings, in which—
Figure 1 is a plan of the same, and Fig. 2 a central section through the same, when closed. Figs. 3 and 4 are a plan and central section, respectively, of the razor, with its snap-piece in its open position.
The razor consists of a frame or plate 2, mounted at the end of handle 1, said plate serving to support the blade, which, for example, may be a thin steel-plate blade 3 and may be single edged or double edged. The frame or plate possesses teeth 4 at its front edge, which is the edge used during shaving, said teeth projecting in the ordinary manner beyond the edge of the blade and being chamfered under the edge itself. In order to prevent the blade, which is made from thin steel plate from being laterally displaced, it is provided with recesses 5 at its ends in which corresponding projections or turned-up lips 6 engage.
The snap-piece 7 serves for clamping the blade in position. Said snap-piece is pivoted or revolubly mounted at the back edge of the plate 2 in the same manner as that in which the snap-pieces are mounted on clasps for braces, the snap-piece being provided with perforated lugs 8, which have been bent down out of the plane of the snap-piece and which engage with pivots 9 provided suitably on the plate 2. The central portion 11 of the snap-piece, which portion is bounded by incisions 10, serves as a closing spring, and is consequently bent so far downward and backward over the axis of rotation of the snap-piece that when the snap-piece is closed it rests (see Figs. 1 and 2) under stress against the edge 12 of the plate, which edge is likewise extended beyond the pivots 9. While the snap-piece is in this closed position its front edge 13, which suitably is likewise bent down somewhat, presses on the steel-plate blade 3 and holds the latter firmly. When the snap-piece 7 is opened, the resilient portion 11, which acts as a spring, slides off the edge 12 and occupies the position shown by Figs. 3 and 4.
What I claim as my invention, and desire to secure by Letters Patent, is—
1. A razor comprising in combination a handle, a plate 2 mounted at the end of the same and provided with teeth at its front edge, a snap-piece 7 revolubly mounted in proximity to the back edge 12 of said plate and provided with a bent resilient portion 11 bounded by incisions 10 and adapted when the snap-piece is closed to engage the back edge of the plate, and a blade adapted to lie on said plate under said snap-piece when closed with its cutting edge adjacent to the teeth on the plate.
2. A razor comprising in combination a handle, a plate 2 mounted at the end of the same and provided with teeth at its front edge, and with pivots 9 at the back portion of its ends, a snap-piece 7 having turned down perforated lugs 8 engaging with said pivots 9 and being provided with a bent resilient portion 11 bounded by incisions 10 and adapted when the snap-piece is closed to engage the back edge of the plate, and a blade adapted to be on said plate under said snap-piece when closed with its cutting edge adjacent to the teeth on the plate.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
Franz Josef Halbekann.