FiledTuesday, 21st October 1902
PublishedTuesday, 27th January 1903
Parts not referenced in the text: None
Parts not referenced in the images: None
To all whom it may concern:
Be it known that I, Hermann Drösse, manufacturer, a subject of the German Emperor, residing at 39 Berlinerstrasse, Charlottenburg, near Berlin, Germany, have invented certain new and useful Improvements in Razors, of which the following is a specification.
This invention relates to improvements in razors in which instead of the usual safety-blade there is a cutting arrangement having a shearing action. This kind of razor consists of a fixed knife-blade forming the one shearing edge and a roller capable of rotating against this edge and having in its surface screw-formed grooves.
The invention will be made clear by reference to the accompanying drawings, in which—
The fixed blades
There is ranged flush with the sharp edges of the fixed blades
The frame which carries the fixed blades and the shearing-roller is provided with a block
In shaving the roller
According to the present invention the advantage of a broad channel in a one-sided working razor is achieved without diminishing the protection against damaging the skin by arranging that the cutting edge which forms one side of the channel and is for the time out of use—that is to say, that edge opposite to the direction in which the roller is rotating—shall be higher than the cutting edge which is in action—that is to say, the edge against which the roller is rotating. This can be effected either by making the knife-blade which is not in use somewhat thicker than the other or by setting it farther off from the roller, or there may be a special plate
All the novel arrangements hereinbefore described are applicable also to razors of the kind described in which only one knife-blade is used or those which can be used both forward and backward, as well as in those in which the roller rotates always in one direction.
Having thus described the nature of this invention and the best means I know of carrying the same into practical effect, I claim—
1. In a razor having a shearing-roller rotating against a fixed blade, the swinging frame which carries the fixed blade and the shearing-roller, substantially as described.
2. In a razor having a shearing-roller rotating against a fixed blade, a swinging frame carrying the fixed blade and the shearing-roller, and a block adjustable in the frame to bear against the shearing-roller, substantially as described.
3. In a razor having a shearing-roller rotating against a fixed blade, a guiding-surface fixed in the plane of the shearing edge, substantially as described.
4. In a razor having a shearing-roller rotating against two fixed blades, one of the said blades made thicker than the other, substantially as described.
In testimony whereof I have affixed my signature in presence of two witnesses.