US2349734A - Razor blade sharpening holder - Google Patents

Description

May 23, 1944. M. JAuME 2,349,734

RAZOR BLADE SHARPENING HOLDER Filed May 5. 1943 NVENTOR. 10 V v Mover! JZM/Mf 9 rue/my Patente d May 23, 1944 UNITED STATES harem OFFICE 1 Claim.

This invention relates to holders for safety razor blades and the main object thereof is the provision of a small compact device adapted to removably lock a blade of either the single edged or double edged type therein, whereby a new edge may be put on the blade with the aid of a stone or hone, in the manner described below. The blade secured in the holder may of course also be stropped as often as desired.

The above and other objects of the invention will become apparent in the description below, wherein characters of reference refer to like-. numbered parts in the accompanying drawing. It

- is to be noted that the drawing is intended to serve primarily the purpose of illustration, and it is not necessarily desired to limit the invention to any or all of the specific details of construction shown excepting insofar as they fall within the scope of the invention.

Referring briefly to the drawing,

Fig. 1 is a side view of the device with a single edged blade secured therein.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a fragmentary plan view of the device but showing the slit locking sleeve separated therefrom.

Fig. 4 is a fragmentary side view of the device with the said locking sleeve removed.

Fig. 5 is a view similar to Fig. 4 but showing the removable clamping plate removed.

Fig. 6 is a view similar to Fig. 5 but showing a double edged blade instead of a single edged blade.

Fig. '7 is a cross-sectional view taken on the line 1-1 of Fig. 1.

Fig. 8 is a cross-sectional view taken on the line B8 of Fig. 5.

Fig. 9 is a bottom plan view of the detachable clamping jaw member per se.

Referring in detail to the drawing, the numeral l0 indicates a handle which is longitudinally bilaterally symmetrical about a vertical plane through the axis thereof, and has axially pro-- jecting therefrom a stub ll. From the free end of the stub to a point near the base thereof, the same is split along the said longitudinal vertical plane, indicated at IE, to split the stub into two half or complementary sections 53 and it. The

section I4 is removed from the stub H by a 1 shaped cut, shown in Fig. 1, through the side of the stub as far as the said plane, thus leaving a complementary V-shaped groove at the base end of the removed section or, in other words, leaving a two-toothed saw tooth edge on i that end of the section It and a complementary saw-toothed socket at the base of the stub ll. These teeth of the section Hi, shown at l5, are then rounded somewhat, as shown, and the complementary socket or sockets, shown at iii, are also somewhat rounded at their corners, as shown, although they need not necessarily be. The purposes of these structures will be set forth more fully below. 1

Formed integrally with each of the sections l3 and It and depending therefrom, are a pair of clamp-like jaws l1 and i8, respectively, whose mutually opposed surfaces (when assembled) are flat. Each of these inner surfaces has a rectangular recess l9 gouged out thereof which is of the same length and height as the reinforced holding edge, or beading, On a single edge blade, and whose depth is substantially one-half the thickness of the said beading, seen at 28 on the blade 2|. A pair of longitudinally spaced pins 22 project from the flat inner surface of the rigid section or clamp ll to register through the usual similarly spaced holes in that type of blade, and complementary holes are provided in the removable clamp H3 for the reception thereof. A sleeve 23, cylindrical in form and split longitudinally along the bottom to form a pair of resilient semicylindrical jaws Z4 separated by a space 25, is slid onto the assembled stub members l3 and M (with the blade 2! in position as shown in Fig. 5) in a direction from left to right, Fig. 3, home to the position shown in Fig. 1, to releasably clamp the blade between the clamping members I! and 48. A peripheral shoulder 25 is formed over about one upper quadrant of each stub section is and It to serve as a limit stop to the sleeve 23, the four corners 27 of the jaws of the sleeve being rounded somewhat and turned outward to better facilitate the operation of passing it onto the assembled stub. Fig. '7 shows the associated parts just described when the holder is ready for use, and it further shows a stone or other hone 28 to illustrate the manner in which a new edge may be put on the blade by working it back and forth on the surface of the stone. The dimensions of the sleeve 23 and the clamps if and H? are such that when the device is applied to the stone as shown, the lower edges of the clamps ll and l?- are clear of the stone and a proper edge angle is thus obtained for the reedging operation by simply lightly resting the sleeve and blade edge on the stone.

To remove the blade from the holder, the sleeve 23 is first slid 01f the free end, and then the removable jaw I8 is removed by grasping the front edge of either that jaw or its stub section l4 and swinging it away from the rigid jaw about the tooth and Socket end I5|6 as a pivot. To better enable the finger to grasp the removable clamp for this purpose, the outermost edges of both clamps and their respective stub sections are somewhat rounded, as shown at 29 in Fig. 3. It is in order to permit such a pivoting movement of the removable clamp l8 that the saw-teeth l 5 are rounded as mentioned and as shown, for if they were not rounded somewhat the teeth l5 would jam in their sockets and would have to he slid forward to loosen the removable member, which would be undesirable if not impossible because of the obstruction of the pins 22. v A double edged blade, shown at 38 in Fig. 6, is secured in the device by placing it flush against the stationary clamp IT with the pins 22 passing through the usual end openings in the blade, and then applying the clamp I8 thereto as above mentioned. The clamp I! is of course applied in a similar manner, but reversed sequence, to the manner described for removing the same.

With a holder constructed as above described, either a single or a double edged blade may readily be secured and, with the handle it grasped in the hand, the blade may be honed as shown in Fig. 7 whenever it has become too dull for mere stropping in order to put a new cutting edge on the blade. If desired, the blade may obviously be stropped when held in the holder. Thus the life of a blade may be very greatly extended.

Obviously, modifications in form and structure may be made without departing from the spirit and scope of the invention.

I claim:

A razor blade holder comprising a, handle, said handle having a longitudinally aligned extension of one-half the thickness of said handle thereby forming a shoulder at the base of said extension, said extension having one side thereof flat, said shoulder having a saw tooth extending in a direction toward the free end of said extension adjacent said fiat side thereof, said saw tooth having the surfaces thereof rounded at the extremities thereof, said extension having a substantially rectangular plate rigid therewith and extending downward therefrom with one side of said plate co-planar with said fiat side of said extension to form a jaw, a second and complementary removable jaw having an enlarged upper ridge flat on one side and provided at one end with a saw tooth socket complementary with said saw tooth, said second jaw being removably' mounted against said first jaw with the said fiat surfaces of said jaws juxtaposed and with said tooth registering in said socket, a pair of spaced pins extending from the inner surface of said rigid jaw, said removable jaw having a pair of complementary holes receptive of said pins and being pivotal about said base in said socket in a plane at right angles to said rigid jaw to detach said removable jaw from said rigid jaw, and means for releasably locking said jaws together;

MICHAEL JAUME.

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