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Electric Razor

PatentUS857342

InventionRazor

FiledThursday, 5th July 1906

PublishedTuesday, 18th June 1907

InventorJohn Green

OwnerTheodore W. Remmers

LanguageEnglish

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

United States Patent Office.

John Green, of St. Louis, Missouri, assignor to Theodore W. Remmers, of St. Louis, Missouri. Razor.
No. 857,342. Specification of Letters Patent. Patented June 18, 1907.
Application filed July 5, 1906. Serial No. 324,729

To all whom it may concern:

Be it known that I, John Green, a citizen of the United States, and a resident of the city of St. Louis and State of Missouri, have invented a new and useful Razor, of which the following is a specification.

My invention relates to razors, and has for its principal object to produce a power actuated razor.

It consists principally in a shaft provided with properly guarded razor blades and adapted to be driven at a high rate of speed. It also consists in the parts and in the arrangements and combinations of parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification and wherein like symbols refer to like parts wherever they occur, Figure 1 is a longitudinal sectional view on the plane 1—1 of Fig. 2 of my device; Fig. 2 is a side view thereof showing a portion of the casing in section; Fig. 3 is a cross-sectional detail view of the shaft and the blades and guards thereon.

The shaft 1 of my device is provided with guards 2 fixed thereon. The outer edge of these guards has a series of spaced projections 3 thereon. Mounted on each of the guards is a razor blade 4, whose edge projects radially slightly beyond the edge of the guard but lies slightly rearwardly therefrom. Preferably the guard is curved transversely and of helical form longitudinally, and the razor blade mounted thereon is likewise of helical form with a curved section. The body of the razor blade is made very thin in order to be flexible. On its inner margin, the blade is provided with a rib 5 adapted to bear against the shaft 1 and the guard 2 respectively, at the angle made by them. Said razor blade is also provided with a second rib 6 along its outer margin arranged to bear against the guard near the margin thereof, and the razor edge is formed on the projecting portion of this outer rib. The flexible body portion of the razor blade has holes therethrough and through said holes extend finger screws 7 which coƶperate with threaded holes provided therefor in the guard. The blade is fastened or clamped to the guard by means of these screws, and the adjustment of the cutting edge beyond the guard is effected by manipulating said screws. When a screw is tightened, the edge of the outer rib constitutes a fulcrum for tilting the cutting edge outwardly.

The ends of the shaft are coned out, and into said ends extend tapered bearing pins 8 provided for the purpose in the casing or housing. This casing or housing is preferably made in two parts 9, 10 that are easily separable to facilitate inspection and cleaning of the working elements. The lower part 9 is a semi-cylinder having its diametrically opposite sides projected upwardly for a short distance parallel with each other to facilitate the insertion of the semi-cylindrical portion of the upper part 10 The cylindrical casing thus formed is slightly longer than the razor blade and of slightly wider diameter, but said casing is provided with a longitudinal slot 11 through which the blade is permitted to operate. The ends of the casing are prolonged with a gradually decreasing diameter, and are enlarged into hubs 12 at the axis of the cylinder. These hubs are screw-threaded and are provided with adjustable screw-threaded bearing pins 8 which constitute the bearing for the razor shaft.

The upper part 10 of the casing is provided at one end of its semi-cylindrical portion with a lateral tubular extension 13 adapted to inclose a shaft 14 which is flexibly connected to any suitable source of power. This shaft terminates in a spur gear 15 which meshes with a spur gear 16 on the end of the razor shaft. At the other end of said semi-cylindrical portion, the upper part or member of said casing is provided with a lateral tubular extension 17 substantially parallel with said first-mentioned extension 13, the two extensions being shaped and arranged to constitute a convenient handle for grasping and manipulating the device. This second tubular extension 17 communicates with the end of the cylindrical housing adjacent to the rearmost ends of the helical blades, in consequence of which arrangement the air admitted through the elongated slot 11 in the casing is continuously ejected through the passageway or duct in the tubular extension 17, carrying the refuse matter with it. Preferably, a flexible tube 18 is fitted over said tubular extension 17 and has its outer end free so as to constitute a convenient means for continuously discharging the refuse whenever desired.

The lower part or member of the casing is provided at each end with upturned flat springs 19 which are provided with slots 20 adapted to fit over pins 21 provided therefor on the upper part or member of the casing. These springs are turned outwardly at their ends or are otherwise arranged for convenient manipulation. In order to assemble the parts, it is simply necessary to insert the upper member into the lower member and then slide them together until the slots in the two springs slide over the pins provided therefor; whereby the two members are locked together.

For the purpose of stropping the blades, the shaft 1 is reversible end for end and is provided with a second spur gear 22 at the end opposite the gear 2. The reversal is effected by separating the members of the casing and then reassembling them in reverse position with the gear 22 in mesh with the gear 15.

For the purpose of cleaning the device, it is only necessary, to immerse it in water in which case a continuous stream of water will be driven through the eduction channel.

In operation the shaft is driven at a high speed, and the device is applied to its work in a manner that is believed to be obvious.

Obviously, my device is capable of considerable modification within the scope of my invention, and therefore I do not wish to be limited to the specific construction shown and described.

What I claim is:

1. A razor comprising a shaft, means for actuating said shaft, a helical blade and a helical guard therefor mounted to rotate with said shaft, and a casing having a slot through which said blade is operative, said casing having an ejection duct at its end.

2. A razor comprising a shaft, means for actuating said shaft, helically arranged curved guards mounted on said shaft, helical blades mounted on said guards with their cutting edges extending beyond said guards, and a casing having a slot through which said blades are operative.

3. A razor comprising a shaft, means for actuating said shaft, guards on said shaft, curved flexible blades having marginal spacing ribs bearing against said guards, adjusting screws for clamping said blades to said guards, and a casing having a slot through which said blades are operative.

4. A motor actuated razor comprising a separable casing, a shaft provided with razor blades mounted therein, means for actuating said shaft, guards for said blades, and means to facilitate the stropping of said blades, said means comprising counterpart bearings and gears at each end of said shaft arranged to permit said shaft to be turned end for end.

5. A motor actuated razor comprising a casing, a shaft mounted therein and carrying razor blades and guards therefor, means for actuating said shaft, and means for facilitating the stropping of said blades, said means comprising adjustable pins mounted in said casing and arranged to constitute bearings for said shaft and counterpart coned bearings at the ends of said shaft to coƶperate therewith, whereby said shaft may be turned end for end.

6. A motor actuated razor comprising a slotted casing composed of separable members, a shaft carrying razor blades and guards therefor, and means for facilitating the stropping thereof, said means comprising adjustable pins mounted in said casing and arranged to constitute bearings for said shaft and coned bearings therefor in the ends of said shaft, whereby said shaft can be turned end for end.

7. A motor actuated razor comprising a shaft having razor blades and guards therefor, means for actuating said shaft, and a separable casing in which the same are arranged, one member of said casing having flat slotted springs and the other member having pins to engage therewith.

8. A razor comprising a shaft and means for actuating said shaft, blades and guards therefor mounted to rotate with said shaft and a casing having a slot through which said blade is operative and having an ejection duct, parts of said casing being arranged to constitute a handle for manipulating the device.

9. A razor blade comprising a flexible body portion having holes in its middle portion and integral longitudinal ribs on one side thereof along its margins, substantially as and for the purpose set forth.

10. A razor blade comprising a curved flexible body portion having integral marginal ribs arranged longitudinally on the concave side thereof.

11. A blade for a motor actuated razor comprising a flexible helical body portion of curved section provided with integral marginal ribs arranged longitudinally thereof on the concave side.

12. In a motor actuated razor, a helical guard of curved section and a flexible helical blade of curved section adjustably secured thereto.

Signed at St. Louis, Missouri, June 30, 1906.

John Green.

Witnesses:

James A. Carr,

J. B. Megown.