From time to time someone patents glass razor blades.. in '85 James Haythornthwaite did one better and filed a patent for a whole razor made out of glass.
A razor is formed entirely of an inexpensive glass material. In one embodiment the razor is formed as a single piece of material which includes a handle portion, a blade portion and an arcuate intermediate portion interconnecting the handle and blade portions, with the blade portion being provided with a sharp cutting edge. In another embodiment the razor includes a handle and an essentially cylindrical blade received between clamping jaws at one end of the handle, with the blade being provided with opposed cutting edges.The idea has some good points - simple construction, only one material in use, long lasting edge. On the less good side is the fact that it's essentially a section of straight-edge - having no safety bar - so the risk of cuts and nicks would be rather higher than Joe Average might be prepared for.
In genera, a razor in accordance with the invention comprises an elongated handle portion and a cutting blade portion having first and second surfaces which intersect to define at least one sharp cutting edge. The handle portion and the blade portion, including the one sharp cutting edge, all are formed entirely of a glass material.The second version described - the cylindrical glass blade - has the benefits of not just a rudimentary guard, but also the more questionable benefit of being able to shave on the opposite direction without changing the grip.
More specifically, in one embodiment of the invention the handle portion and the blade portion are interconnected by an arcuate intermediate portion, with the handle portion, blade portion and arcuate intermediate portion all forming parts of a single integral body of glass material. Further, the handle portion and the blade portion of the razor extend essentially perpendicular to one another.
In another embodiment of the invention, the elongated handle portion includes a pair of arcuate opposed clamping jaws at one end thereof, the arcuate opposed clamping jaws being integral with the remainder of the handle portion and having spaced opposed ends. Further, the blade portion is of elongated essentially cylindrical construction and is formed with an axially extending gap between spaced opposed ends thereof to define elongated edge portions extending in spaced opposed parallel relationship for the length of the blade portion. The spaced opposed elongated edge portions have respective intersecting surfaces which define first and second opposed sharp cutting edges. The blade portion is removably and rotatably received in the arcuate clamping jaws of the handle portion with the opposed elongated portions and the sharp cutting edges of the blade portion projecting beyond the clamping jaws of the handle portion.
FIG. 1 is a side elevational view of a first embodiment of a razor in accordance with the invention;
FIG. 2 is a view of the embodiment of the invention shown in FIG. 1, as seen along the line 2--2 in FIG. 1;
FIG. 3 is an isometric view of a handle member of a second embodiment of a razor in accordance with the invention;
FIG. 4 is an isometric view of a blade portion of a razor for use in the razor handle shown in FIG. 3; and
FIG. 5 is a side elevational view of the handle and blade portion shown in FIGS. 3 and 4 in assembled relationship.