US1711413A

US1711413A - Safety razor

Info

Publication number: US1711413A
Application number: US45597A
Authority: US
Inventors: Bennett G Jansson
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-23
Filing date: 1925-07-23
Publication date: 1929-04-30
Anticipated expiration: 1946-04-30

Description

Patented Apr. 30, 1929.

UNITED STATES BENNETT G. JANSSON, 0F SA'UGUS, MASSACHUSETTS.

SAFETY RAZOR.

Application led J'nly 23, 1925. Serial No. 45,597.

This invention relates to safety razors, and it aims to devise an article of this character which will be more convenient to use and will give a better and more comfortable shave than the common commercial constructions.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

In the drawings,

Figure 1 is a perspective view of a safety razor constructed in accordance with this invention, a part of the handle, however, being broken off;

Fig. 2 is a perspective View of the blade used in the razorsho'wn in Fig. l;

Fig. 3 is a vertical, cross sectional view of the parts of the razor shown in Fig. l;

Fig. 4 is a side elevation of the complete razor;

Fig. 5 is a side elevation on a larger scale of the head and part of the handle of the razor; and

Fig. 6 is a front view of a modified construction of blade holder.

The construction shown in the drawings comprises a razor blade 2, preferably ofthe form shown in Fig. 2, and a holder for said blade. The holder includes a head 3 and a handle projecting from said head, the handle comprising a shank 4 and a tubular grip 5 which is removably secured to the shank by a threaded joint 6, Fig. 3.

The blade 2 rests on a flat face formed on the upper side of the head 3 and it is clamped on this face by a lever. One arm ot' this lever consists of a bar 7 which extends across the blade supporting face of the head and has its opposite ends bent downwardly and secured in the opposite ends of a rock shaft 8. This rock shaft is journalled in and extends through the head 3, and it forms the fulcrum of the lever. The other arm of the lever is indicated at 10 and it is normally located in a groove l1 formed in the shank4, as clearly shown in Figs. 1 and 3. This arm is secured at its upper end in the central portion of the rock shaft 8, the head 3 being slotted at 9, Fig. 3, to admit the arm 10.

' By unscrewing the tubular port-ion 5 of the handle from the shank 4 and removing it from the shank, the arm 10 may be swung outwardly away i rom the shank, thus moving the. bar 7 upwardly and backwardly away from the blade 2 and thereby releasing the blade. The blade may then be removed and subsequently replaced or another may be substituted for it. lrVhen the arm 10 is swung back into the groove 1l it securely clamps the blade 2 against the head 3. While the arm 10 is held in the groove 11 the shank 4 is slipped into the upper end of the tubular part 5 o the handle, and this part of. the handle is then turned to thread it-on to the shank and thus secure the parts together in readiness for use.

As clearly shown in Fig. 2, the blade 2 is provided with shoulders 12-12 which abut against the bent ends'of the bar 7 and locate the blade properly on the head 3. The head also is provided with a guard 14, which pret'- erably is integral with the head, and performs the double function of protecting the edge of the blade and also of preventing the blade from cutting the face while shaving.4 The milled. I find that this knob aids materially in properly guiding the razor.

It should also be noted that the axis of the tubular grip portion 5 of the handle, when extended upwardly, intersects, or lies sub stantially in line with, the edge of the blade 2, this axis, however, being at approximately right angles to said edge. The shank 4 is curved to hold the head and handle in this relationship. I find that this arrangement facilitates the manipulation of the razor during shaving and makes it considerably easier to hold the razor blade 2 at the proper angle on the face to cut freely without scraping. This is further facilitated by having the blade 2 inclined backwardly or located at a slightly acute angle to the axis of the tubular grip 5, as clearly shown in Fig. 3. In other Words, the face of the blade farthest from the handle makes an acute angle with the axis of the handle.

Attention is particularly directed to the fact that the blades used in this razorare very niuchnarrower than the b ades othe common commercial typsoii safety razors, and that the holder is only very slightly `greater in'lwidth than the blade. This narrow construction is of great advantage in shaving the upper lip close to the nose since it permits the blade to c ut the beard at this is tender.

The blade shown may be conveniently stropped with the aid of a stropping device described and claimed in another application which I have filed concurrently herewith. This is an advantage in enabling the user always to have a sharp blade, which lis the most important requisite to a good shave.

Fig. 6 shows a slightly different construction of holder in which a toothed guard 14 is substituted for the guard 14 of the construction shown in Figs. 1 and 2. In other respects this construction is like that above described. j 5

While I have herein shown and described the best embodiment of my invention that I have so far devised, it will be evident that the invention' may -be embodied in other forms without departing from the spirit or sctpe thereof.

aving thus described my invention what I desire to claim as new is:

1. In a safety razor, a blade holder comrising a -hea'd having a blade supporting ace, a handle rojecting from said head,l a

lever fulcrume in said head and including a I member for clamping the blade against said face, and an operating arm extending along said handle, said handle including a part grooved to receive said operating arm'.

prising a head havin a blade supporting face, a handle rojectingl from said head, a guard for the edge of said blade, a rock shaft mounted in said head substantially parallel to said face, a bar secured to said rock shaft and extending across said face for clamping the blade against said face, and an arm connected with said shaft to rock it, said arm extending along said handle and arranged to be secured thereto.

3. In a safety razor, a blade holder comprising a head having a blade supporting face, a handle projecting from said head, a

guard for the edge of said blade, a rock shaftl mounted in said head substantially parallel to said face, a bar secured to said rock shaft 'and extending cross said face for clamping the blade against said face, and an arm connected with said shaft to rock it, said handle including a shank projecting from said head and a tubular grip in which said shank is removably secured, said shank being grooved to receive said arm, and said grip being operative to hold said arm in the groove of said shank.

4. In a safety razor, a blade holder comprising a head having ablade supporting face, a guard for the edge of said blade, a handle projecting from said head, a rock shaft vextending through said head parallel to said face, a bar extending across said face and having downwardly bent en d portions secured in said rock shaft, and an arin connected with said shaft to rock it, said arm extending along said handle and arranged to be secured thereto. f

5. In a safety razor, a blade holder coinprising a head having a blade supporting face, a'guard for the edge of said blade, means for securing a blade on said face, and a handle projecting from" said head and curved adjacent to the head to position the center lineof the major portion of the handle approximately in line with but at an angle to the cutting edge of the blade when in its working position.

6. In a safety razor, a blade holder comprising ahead having a blade supporting face,'a guard for the edge ofsaid blade, means for securing a blade' on said face, a handle projecting rom said head and curved adjacent to the head to position the axis of the major portion of the handle approximately in line with but at an angle to the cutting edge of the blade when. in its Workinv iool means for securing a blade on said face, a

handle projecting from said head and coinprising a shank and a grip, said shank being v2. In a safety razor, a blade holder comcurved so that the axis `of the grip lies approximately in line with but at an angle to the cutting edge of the blade when in its working position.

8. Ina safety razor, al blade holder comprising a head having'a blade supporting face, a ard for the edge of said blade, said guard eing rigid with said head, a handle projecting from said head and including a curved shank and a tubular gri in which said shank is removably fastene a bar extending across the blade supporting face of said head, a rock shaft mounted in said head and secured to the op osite ends of said bar, a blade held against said face by said bar, said blade having shoulders to position it on said head, and an arm connected with said shaft to rock it, said. arm'normally being located in a groove in the shank and extending into said tubular grip, whereby said grip secures said shank and arm together.

9. In a safety razor, a blade holder comprising a head having an outer face for supporting arazor blade, a guard for the edge `prising a head having of said blade, a handle projecting from said head, and fixed securely thereto, and a lever fuleru-Ined in saidhead and including a member for clamping the blade against said Aface and an operating arm extending along said handle.

10. In a safety razor, a blade holder comprising a head having an outer face for supporting a razor blade, a guard for the edge of said blade, a handle projecting from said head,a bar extending across the blade supporting face of said head and adapted to press the blade against said outer face of the head, said blade having shoulders cooperating with parts of the clamping means therefor for positioning the blade on said head, and means for operating said bar including a lever fulcrumed in said head, 'said lever having an operating arm extending along said handle.

11. In a safety razor, a blade holder coma blade supporting face, a guard for the edge of said blade, means for securing a blade on said face, and a.

handle for said head including a gri portion to be held in the hand, and a shan portion connecting said head with said grip portion, said shank being' curved to position the grip portion of the handlein line with, but at right angles to, the shaving edge of the blade when in its operative position on Said face.

' 12. In a safety razor, a blade`-holder comprising a head having a bladesupporting face, a guard for the edge of said blade, means for securing a blade on said face, and a handle for said head, including a grip portion to be held in the hand, and a shank portion connecting said head with said grip portion, said shank portion being curved to position the axis of the handle approximately` in line With, but at right angles to, the shaving edge of the blade, When in its operative position on said face, and said face'being inclined to support the said blade with the face thereof farthest from the handle in a plane which intersects said axis at an acute angle.

v BENNETT G. JANSSON.