Multiplex Razor (‘Mvltiplex’)
Invention Safety Razor
Filed Friday, 1st November 1929
Published Tuesday, 1st August 1933
Inventor Mino Pelizzola
Multi-blade razors are not a recent invention.
‘Multiplex’ or ‘Mvltiplex’? It's of course called ‘Multiplex’, but written in a font where the ‘U’ looks like a ‘V’ (inspired by ancient Rome).
Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
Performing Operations; Transporting
Hand Cutting Tools; Cutting; Severing
Hand-Held Cutting Tools Not Otherwise Provided For
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
Safety razors with one or more blades arranged transversely to the handle
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A PDF version of the original patent can be found here.
Parts not referenced in the text: None
Parts not referenced in the images: None
and in Italy November 8, 1928
The present invention relates to a multiblade safety razor.
The novel razor is essentially distinguished by the fact that it comprises at least two blades carried by supporting means adapted to maintain their cutting edges in parallel and stepped relationship to each other.
This characteristic arrangement offers the advantage that the shaving can be performed more quickly and more regularly, since the hair is cut by the various cutting edges in succession, the first edge effecting a coarse shaving and the following edges effecting a closer shaving. Moreover the angle of incidence made by the cutting edges with the skin, once the most convenient angle has been established, the blades can be permanently fixed with their edges at that angle.
The razor according to the invention is illustrated, by way of example only, in the accompanying drawing in a preferred embodiment of the invention.
In the first form of the invention (
The clamping means are of detachable type and comprise two pins
As will be seen from the drawing, the pins
In this embodiment of the invention, the base plate
It should be noticed that, as each blade is firmly held between two plates, the blades are not flexed and can accordingly be manufactured with fully hardened steel so that the edges may be quite sharp and have a long life.
It is obvious that in combination with the razor according to the invention, also blades of ordinary safety razor types (for instance Gillette) can be used. To this effect it will suffice (
In the modified construction illustrated by
In order to avoid the necessity of taking the razor parts asunder after use, the razor blades are advantageously coated with a layer of enamel, varnish or the like, the cutting edge alone being left free. After use, it will then suffice to rinse the razor in water preferably hot and to wipe the cutting edges with a dry cloth, and the rest of the razor will not be liable to rust or any other alteration.
When the blade edge has worn out on one side (the which occurs after numerous shavings) one can disassemble the razor parts and re-sharpen the cutting edges.
Numerous variations may be devised of the present invention. For instance, the blades instead of being laid flat might receive a certain curvature on their being mounted in the razor. The clamping and spacing means might be of a different type. The assembled cutting edges, instead of being arranged in a plane surface, might be arranged to form a somewhat curved surface, and so on without departing from the spirit and scope of the invention.
Having now described my invention and how the same is to be carried out, what I claim as my invention is:
1. A safety razor comprising a lower block having a handle fixed thereto, an upper block having pins fixed thereto, said pins being passable through apertures in the lower block, a plurality of cutting blades between the blocks and having cutting edges upon their longitudinal edges, said blades being of the same width, said blades having a plurality of transversely alined holes therein, plates between the blades having openings therein through which the pins are passable, said pins being adapted to selectively engage the holes of the blades to maintain the cutting blades in stepped parallel relation, and a clamping nut engaged with the pins and bearing against the lower block to hold the blades and plates clamped between the blocks.
2. A safety razor comprising a pair of blocks, a handle fixed to one block, blades having the same width and arranged in a plane between the blocks, flat spacing plates between the blades and being in intimate contact therewith throughout their width, the said blades, blocks and plates being disposed in inclined relation with respect to the longitudinal axis of the handle, each blade having a cutting edge on its longitudinal sides and clamping means cooperating with the blocks for holding the longitudinal edges of the blocks, blades and plates in stepped relationship and the cutting edges of the blades in the same parallel plane.