US2123608A

US2123608A - Shaver

Info

Publication number: US2123608A
Application number: US105247A
Authority: US
Inventors: Mccann Howard Chester
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-10-12
Filing date: 1936-10-12
Publication date: 1938-07-12
Anticipated expiration: 1955-07-12

Description

July 12, 1938 H. c. MCCANN SHAVER Filed Oct. 12, 1936 INVENTOR. fibn am Mas/er M7000 Patented July 12, 1938 UNITED STATES PATENT OFFICE,

Application October 12, 1936, Serial No. 105,247

10 Claims.

My invention relates to a shaver to take the place of a razor for shaving hair, and the objects of my invention are:

First, to provide a rotary blade shaver which is operated by a pre-wound spring;

Second, to provide a .shaver of this class with governor means for regulating speed of the shaving blade;

Third, to provide brake means in connection with the governor for holding the shaving blade against rotation;

Fourth, to provide a shaver of this class in which the hairs may be efliciently removed without the use of lather;

Fifth, to provide a shaver of this class which is manually operated and propelled;

Sixth, to provide a shaver of this class within which the shaved hairs may be retained, and from within which said hairs may be readily removed;

Seventh, to provide a shaver of this class which is very simple of construction and operation, efiicient, durable, and which will not readily deteriorate or get out of order. a

With these and other objects in view as will appear hereinafter,- my invention consists of certain novel features of construction, combination, and arrangement of parts and portions as will be hereinafter described in detail and par ticularly set forth in the appended claims, reference being bad to the accompanying drawing and to the characters of reference thereon which form a part of this application in which:

Figure 1 is a longitudinal sectional view of my shaver showing some of the parts in elevation to facilitate the illustration; Fig. 2 is an enlarged fragmentary sectional view; Fig. 3 is a transverse sectional view from the line 3-3 of Fig. 2; Fig. 4 is an end view from the line 4-4 of Fig. 2; Fig. 5 is a transverse sectional view from the line 5-5 of Fig. 2 and Fig. 6 is a transverse sectional view from the line 6-6 of Fig. 2.,

Similar characters of reference refer to similar parts and portions throughout the several views of the drawing.

The tubular casing l, tubular casing end caps 2 and 3, revoluble blade 4, shaft 5, partition and journal 6, brake disk I, brake latch 8, governor members 9, operating spring l ratchet wheel ll, ratchet pawls l2, and winding key l3 constitute the principal parts and portions of my shaver.

The casing l is a tubular member externally threaded at its opposite ends at In. and lb. Mounted over the threads la is an internally threaded end cap 2, the threaded portion 2a engaging threads la. It will be noted that the threaded portion 2a of cap 2 is of greater internal diameter than the rest of said cap 2. At 211 the cap 2 is reduced in internal diameter so as to provide ashoulder to secure partition 6 rigidly in position between said shoulder and lugs lb when the cap member 2 is screwed onto threads la. This cap member 2 is provided with a relatively thin end covering portion 20 which is provided with a plurality of outwardly curved 10 openings 2d as shown best in Figs. 3 and 4 of the drawing. Mounted against this inner surface and adapted to revolve against the inner surface of the. member 20 is a revoluble blade 4 which is made with a plurality of extended blade portions 411. In this case I have shown four which are provided with sharpened edges which are adapted to engage hair which extends through the slots 2d in the end member 2 and shear the same with the revolution of the blade 4. This blade I is secured on the end of the shaft 5 which is the drive shaft for the blade 4 by means of screw threads Ad. This shaft 5 is enlarged at 50 for forming a journal within a 'central opening 6a in the partition and journal 6. The shaft 5 is provided with a square portion 5b extending some distance from the enlarged portion 5a, and secured to the four sides of this shaft near the enlarged portion 5a are a plu-- rality of governor members 9 provided with weights 9a tending to draw the brake disk 1 toward the blade 4 by centrifugal force so that when a certain speed is attained, this disk I engages the brake latch 8 at one side for reducing the speed of the shaft and thereby the razor blade 4, the disk 'I being secured to the extended ends 9b of the governor members 9 provided with a square portion which is shifted longitudinally on the square portion 5b of the shaft 5. The brake latch 8 is shiftable longi- 40 tudinally on the tube 2 and is provided with a tight frictional fit so that it may be shifted to various positions relatively to the disk 'I for providing a predetermined speed of the shaf and thereby the blade 4. This latch also "provides means for causing a brake while winding the shaver which is accomplished by shifting the latch 8 against the disk I and thereby provides a brake to prevent the shaft 5, from turning when desired. Secured to the shaft 5 backwardly from the square portion 51) is the one end of the operating spring Ill which is a torsion spring, and the opposite end is secured to the hub Ha of the ratchet wheel II, and the backward end of the 55 shaft 5 is revolubly mounted in this hub portion Ila so that the spring I 0 may be wound around the shaft 5.

The ratchet wheel H is supported on the inside of the cap 3 which is screw-threaded on the threads lb on the tubular casing I. This 7 cap 3 is provided with a central opening 3a which receives the extended end of a reduced portion lib of the ratchet wheel II. This reduced portion III) is threaded at its extended end He and on which is secured the winding key 13, it being noted that the winding key is screw threaded to the ends of the threads on the member llb.

Mounted for engagement with the ratchet wheel II are a plurality of ratchet pawls I! which are adapted to engage the ratchet teeth llc on the ratchet wheel ll, thus providing ratchet means for holding the spring in certain relation with the shaft so that it may be wound as desired. While winding the spring by means of the key I 3, the disk 1 is held by the shifting of the latch 8 against said disk forming a brake against the movement of the shaft.

Around the exterior of the cap member 2 and shiftably positioned within groove 2e is a slip ring 2!. The cap member 2 is provided with four circular openings and the slip ring 2} is also provided with four conforming circular openings as seen best in Figs. 2 and 3. It is to be here noted that the cap member 2 and the partition 6 form a chamber Within which is retained the sheared hairs and that by shifting the slip ring 2 to the position shown in Figs. 2 and 3 that the hairs may be emptied without removing the cap 2.

The operation of my shaver is as follows: The shaver is prepared for operation by winding the spring l0 around the shaft 5 by turning the key l3 until the spring J0 is tightly wound, the latch 8 being shifted against the disk 1 to prevent the shaft from turning. Then the latch 8 is shifted a certain predetermined distance from the disk 1 and the shaft 5 is revolved by the spring 10 carrying with it the blade 4. The outer surface of the member 2 is placed against the surface to be shaved and the hairs extend through the slots 2d and are sheared by the rotating blades 4a. The speed of the rotating blades is regulated by the governor drawing the disk I against the latch 8. The sheared hairs will go into the cap member 2 between the partition 6 and the blade 4 and may be removed from time to time by means of slip ring 2).

Though I have shown and described a particular construction, combination, and arrangement of parts and portions, I do not wish to be limited to this particular construction, combination, and arrangement, but desire to include in the scope of my invention the construction,

combination, and arrangement substantially as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a shaver, a tubular. casing member provided with a plurality of radiating various length curved slots at one end, a shaving blade with a plurality of radiating shearing members revolubly mounted against the inside of said end, and a torsion spring in connection with said rotor blade for tending to turn the same.

2. In a shaver, a tubular casing member provided with a plurality of radiating various length curved slots at one end, a shaving blade with a plurality of radiating shearing members revolubly mounted against the inside of said end, a torsion spring in connection with said rotor blade for tending to turn the same, and means extending outwardly of said casing for winding said spring relatively to said blade.

3. In a shaver, a tubular casing member provided with a plurality of radiating various length curved slots at one end, a shaving blade with a plurality of radiating shearing members revolubly mounted against the inside of said end, a torsion spring in connection with said rotor blade for tending to turn the same, means extending outwardly of said casing for winding said spring relatively to said blade, and governor and adjustable brake means in connection with said spring and said blade.

4. In a shaver, a tubular casing member provided with a plurality of radiating various length curved slots at one end, a shaving blade with a plurality of radiating shearing members revolubly mounted against the inside of said end, a torsion spring in connection with said rotor blade for tending to. turn the same, means extending outwardly of said casing for winding said spring relatively to said blade, governor and adjustable brake means in connection with said spring and said blade, and ratchet and pawl means in operative connection with said spring.

5. In a shaver, a tubular casing provided with removable end caps, one of said end caps provided with a plurality of curved slots, a rotary blade revolubly mounted against the inner side of said cap over said slots, a shaft secured centrally to said rotary blade, a ratchet wheel revolubly mounted in the opposite end of said tubular casing against the other cap member in which the other end of said shaft is revolubly mounted, ratchet pawls supported in said second mentioned cap engageable with the ratchet teeth, anda spring secured to said shaft at one end and to said ratchet wheel'at its opposite end.

6. In a shaver, a tubular casing provided with removable end caps, one of said end caps provided with a plurality of curved slots, a rotary blade revolubly mounted against the inner side of said cap over said slots, a shaft secured centrally to said rotary blade, a ratchet wheel revolubly mounted in the opposite end of said tubular casing against the other cap member in which the other end of said shaft is revolubly mounted, ratchet pawls supported in said second mentioned cap engageable with the ratchet teeth, a spring secured to said shaft at one end and to said ratchet wheel .at its opposite end, and a key secured to said ratchet wheel outwardly of said cap for turning said ratchet wheel and winding said spring.

'7. In a shaver, a tubular casing provided with removable end caps, one of said end caps provided with a plurality of curved slots, a rotary blade revolubly mounted against the inner side of said cap over said slots, a shaft secured centrally to said rotary blade, a ratchet wheel revolubly mounted in the opposite end of said tubular casing against the other cap member in which the other end of said shaft is revolubly mounted. ratchet pawls supported in said second mentioned cap engageable with the ratchet teeth, a spring secured to said shaft at one end and to said ratchet wheel at its opposite end, a key secured to said ratchet wheel outwardly of said cap for turning said ratchet wheel and winding and spring, and governor and brake means in connectionwith said shaft and said casing for controlling the speed of said shaft.

8. In a shaver, a tubular casing provided with removable end caps, one of said end caps provided with a plurality of curved slots, a rotary blade revolubly mounted against the inner side of said cap over said slots, a shaft secured centrally to said rotary blade, a ratchet wheel revolubly mounted in the oppositeend of said tubular casing against the other cap member in which the other end of said shaft is revolubly mounted, ratchet pawls supported in said second mentioned cap engageable with the ratchet teeth, a spring secured to said shaft at one end and to said ratchet wheel at its opposite end, a key secured to said ratchet wheel outwardly of said cap for turning said ratchet wheel and winding said spring, governor and brake means in connection with said shaft. and said casing for controlling the speed of said shaft, said governor means including a latch shiftable longitudinally of said tubular casing engageable by said I governor means.

9. In a shaver, a casing member, a removable cap provided with a plurality of curved slots, a

plurality of openings through which the shaved hairs may be removed and a closure member having openings conforming therewith, a blade rotatably mounted within said cap member and adjacent to the end of said cap member having the curved slots and torsion spring for driving chamber within which the shaved hairs may be retained.

HOWARD CHESTER MCCANN.