US2232271A

US2232271A - Safety razor

Info

Publication number: US2232271A
Application number: US203027A
Authority: US
Inventors: Herbert E Rider
Original assignee: FRANK M ASHLEY
Current assignee: FRANK M ASHLEY
Priority date: 1938-04-20
Filing date: 1938-04-20
Publication date: 1941-02-18
Anticipated expiration: 1958-02-18

Description

Feb. 18, 1941. H. E. RIDER SAFETY anon Filed April 20', 1958 INVENTOR v jzrZer E Rider Patented Feb. 18, 1941 j UNITED STATES 2,232,271 SAFETY RAZOR Herbert E. Rider, New

York, N. Y., assignor, by

mesne assignments, to Frank M. Ashley, New

York, N. Y.

Application April 20, 1938, Serial No. 203,027

is removed for the purpose of inspection and adjustment.

A further object is to. provide a razor in which the entire length of the cutting edge of the blade is exposed to view and adapted to contact the skin of a user in the act of shaving.

A further object is to provide a construction in which the blade is mounted and guided to operate in rocking relation to the supporting platen on which it carried, to provide a slicing action by reason of which the beard of a user may be removed without injury to the skin and without any disagreeable sensation by reason of pulling, etc.

Other objects will appear in the following specification in which a detailed description of the construction is set forth.

Referring to the drawing which form a of the specification;

Fig. 1 is a perspective view of a razor construction embodying my invention and showing the arrangement of the blade edge relative to the guard.

Fig. 2 is a vertical sectional view thru the casing, blade housing and blade, and the exterior part ' view of the motor and means for holding it in the casing.

Fig. 3 is a plan View of a cross section taken on line 3-3 of Fig. 2.

Fig. 4 is a diagram of the electrical connections used in the construction.

Fig. 5 is a view of one form of blade construction which may be used, showing slots for guiding the blade in a linear movement.

Fig. 6 is a view of a blade construction showing slots for guiding the blade, one of which is formed to provide parallel sides which extend parallel to the edge of the blade, and the other of which extends at a sharp angle to the straight edge of the blade.

Fig. '7 is a cross sectional view taken on line of Fig. 2, and illustrating the arrangement of the blade in the housing.

My construction embodies an electro magnet and an oscillatory armature hinged between its ends and mounted in such a manner that its two ends'will be positioned respectively opposite the two ends of the magnet, the armature being made of iron and magnetized to provide a permanent magnet.

It will be noted there are no springs used in 5 the construction of the motor or parts within the casing.

Illindicates a casing made in two parts that are substantially alike in form and size and may be made in the same mold.

The casing is made of insulating plastic material and is formed to provide a recess of rectangular form, indicated by H, in each part, which are located opposite to each other and serve to hold a metal band l2 rigidly between them.

The band I2 is made from a strip of metal bent into "the form illustrated in Fig. 3, and supports an electro magnet l3 and an insulating sleeve. M, as shown in Fig. 2, together with an armature l5 which is pivoted at I6.

The core of laminated metal I! extends beyond the coil of the magnet and a screw l|'-l'l respectively, extends thru themagnet poles and are adjusted relative to the poles of the permanent magnet l5 to control the amplitude of the movement of said magnet and cause it to oscillate.

Extending from the upper end of the permanent magnet I5 is a bar of non magnetic metal such as aluminum, or other suitable material l8, which serves to transmit its movement to the razor blade to reciprocate the same.

The casing is held together in easily separable relation by a nut and screw combination at its lower end, indicated by (9, and at its upper end it is held by a tube which slips over the tubular formed portion 2| of the casing in close frictional relation, said casing being separable on the vertical line 22.

The upper end of the tube 20 is secured to the lower plate 22' of the housing which may be bodily removed from the casing II), as will be readily understood. I

It may be well to note at this time that by removing the razor-blade housing, and removing the nut from the bottom end of the casing ID the operative magnets may be removed from the casing for inspection or adjustment, and that the adjustments and tests of said parts may be made prior to assembling the parts ready for sale.

Mounted on the plate portion 22 of the housing are mounted two upwardly extending pins 23-23, respectively, secured to the plate in fixed 55 relation, and small cylinders 24-24 respectively are fitted to said pins to serve as friction rollers which may be easily replaced by new ones in case of excessive wear.

The blades 25 and 25' illustrate the same construction except for the form of the

end slots

27 and 21, which fit over the rollers or cylinders 24-24.

The cutting edge of the blade is indicated by 26 and each blade is provided with a stiff back strip 28 provided with a notch 29 in each end, and a notch 30 midway therebetween to reduce the weight of the blade.

The blade is also provided with a rectangular slot 3| into which the upper end of the rod l8 projects and fits in such a manner as to permit the blade shown in Fig. 6 to rise and fall slightly in the slot 21 in action, said blade being pivoted in the slot 21 and therefore the blade will move laterally and upwardly with a swing ing motion when driven by the motor, the degree of said motion being governed by the adjustment screws II.

It will be noted that the adjustment screws l'! are located adjacent the inner wall for the reason that if for any reason the device fails to operate, it will not be injured by an inexperienced person trying to adjust it but must be returned to the makers or an experienced person for such adjustment.

The electric current is controlled by a switch 32 of usual construction and is the only part carried by the casing portion opposite to the portion carrying the motor, and this arrangement permits the motor to be inspected and operated in the half of the casitng carrying it when the part carrying the switch is removed, the electrical conductors being sufficiently long to permit operation of the switch and motor when so separated.

The cover portion 33 of the housing is pivoted to the plate 22 and serves to guide the blade in its movement, and by swinging the cover upwardly on its pivots 34 the blade may be freely removed from the housing,

35 indicates a resistance to reduce the current from H0 volts to a lower voltage suitable for the operation of a motor comprising an electro-magnet of the character described.

By pivoting the fixed magnet between its ends as shown the power is increased since each pole of the magnet acts alternately to attract and repel the adjacent ends of the permanent magnet, as will be readily understood.

Having thus described my invention I claim as new:

1. A safety razor comprising a casing adapted to support a razor blade, said casing comprising a guard on which the blade rests and pins for guiding the blade fixed thereon, and a blade having slots therein for guiding the blade by means of said pins, one of said slots extending at an angle to the other whereby the blade may be caused to swing relative to the guard, and means for reciprocating said blade.

2. The construction defined in claim 1, together with; each of said pins having a cylindrical roller thereon.

3. A safety razor comprising a casing comprising a guard on which a blade may rest, pins carried by said guard portion of the casing, a blade having a slot extending parallel with the edge of the blade adjacent one end thereof and a slot extending at an angle thereto located adjacent the opposite end of the blade, said pins extending thru said slots to guide the blade.

HERBERT E. RIDER.