US1998130A - Holder for safety razor blades - Google Patents

Description

April 16, 19356 I J GANZ ET I 1,998,130

HOLDER FOR SAFETY RAZOR BLADES Filed March 20, 1935 INVENTOR$ Patented Apr. 16, 1935 rarest Fries Horses FOR SAFETY RAZORA'BLADES' Joseph P. Ganz and from F. smears; Pittsburgh; Pa;

Our invention relates to a holder for safety razor blades and while primarily designed for holding a blade to facilitate the resharpening of the latter, it will be obvious that the device may be employed for any other purposes wherein it is found to be applicable.

Important objects of the invention are to provide a holder of the character described, which will accurately and rigidly dispose the blade at the proper sharpening angle when positioned flatwise on a strep or hone, which'embodiesbut few parts, which may be effectively operated even by unskilled persons, and-which may be conveniently and quickly operated to secure a blade or to release the latter therefrom.

Further objects of the invention are to provide a device of the class stated, which issimple'in its construction and arrangement, durable and efficient in its use, compact, attractive in appearance, and comparatively inexpensive to-m'anufacture.

With the foregoing and other objects in View which will appear as'the description proceeds, the invention resides in the construction, combination and arrangement of parts herein specifically described and illustrated in the accompanying drawing, but it is to be understood that the latter is merely illustrative of an embodiment of the invention, and that the actual needs of manufacture and practice may necessitate certain mechanical variations. It is therefore, not intended to limit the invention to the disclosure thereto herein illustrated, but rather to define such limitations in the claim hereunto appended.

in the drawing wherein like numerals of reference designate corresponding parts throughout the several views:-

Figure l is a side view of a safety razor blade holder constructed in accordance with the present invention.

Figure 2 is a back edge View of the handle and the integrally formed clamping jaw.

Figures 3 and 4, are respectively, outer and inner side views of the removable jaw.

Figure 5 is an enlarged forward end view of the assembled holder.

Referring in detail to the drawing I denotes a fixed clamping jaw, and 2 represents a re- 09 movable clamping jaw. The clamping jaws l and 2 are identical in contour, and adapted to be clamped together flatwise in opposed relation to each other for securing a safety razor blade 3 therebetween. The clamping jaw I is formed integral with, or otherwise fixed to, the

forward. end of an operating handle. 4. The fixed jaw l is laterally offset relatively to the longitudinal disposition of the handle 4, so that the mean longitudinal center of the assembled jaws i and 2 extends in'alignment with the lon- 5 gitudinal center of the handle 4.

Each of the clamping jaws i and 2 is rectangular in configuration and substantially wedgeshaped iii-transverse cross section, gradually 'diminishing in thickness from its back edge to 10 its front'edge. The opposed inner side faces of the jaws land 2 are perfectly fiat, and the outer side surface thereof are provided with slightly concave'd transverse curvatures.

The fixed jaw i is provided with a pair of 16- fixed connecting pins 5, which project laterally from the inner fiat'side of the former. The connecting pins5 are suitably disposed and spaced from each other to adapt same for passage through the usual opening or openings provided 0 in safety razor blades of the type and construction now in common use. The connecting pins 5 are tapered, gradually diminishing in transverse area from their free endstoward the attached ends thereof. 25'

The removablejaw Z is provided'with apair of transversely extending connecting slots 6. The latter are substantially key-hole shaped, and have their enlarged portions disposed toward the front edge of said jaw 2. The reduced 30 portions of the slots 6 are provided with beveled side walls l and slightly but gradually decrease in width toward their back ends.

The removable jaw 2 is clamped in position to the fixed jaw l by the engagement of the con- 35 necting pins 5, carried by the jaw l, in the slots 8, formed in the jaw 2. The enlarged front portions of the slots 6 allow the free passage of the respective pins 5 therethrough. This is effected while the removable jaw 2 is offset toward the 40 back of the holder to bring the said pins 5 and the enlarged front portions of the slots 6 into exact registrations relatively to each other. After the pins 5 have entered the enlarged front portions of the slots 6, the removable jaw 2 is forced toward the front of the holder to its normal position whereby the tapered pins 5 will engage the beveled slot walls l providing a wedging action fixedly clamping the said removable jaw 2 in position on the fixed jaw I.

In securing the razor blade 3 between the clamping jaws, the former is first placed upon the fiat inner side of the fixed jaw i. The proper positioning of the blade 3 is instantly effected by the passage of the pins through the openings in said blade 3. The forward end 8 of the blade 3 normally projects beyond the forward ends of the clamping jaws I and 2 to afiord a finger hold facilitating the positioning of the blade upon the fixed jaw I or its removal from the latter.

The fiat inner side faces of the jaws I and 2 are preferably covered by a very thin cushioning liner 9, which may be constructed from any suitable material, namely, paper, cloth, composition material, but preferably resilient material in the form of sheet rubber. The liners 9 are permanently secured to said jaws by an adherent agent, or in any other suitable manner. The liners 9 are provided to augment the gripping action of the jaws I and 2 when clamped against the blade 3, and to adjustably compensate for any irregularities on the inner faces of the jaw structures.

The removable jaw 2 may be locked in the clamping position by means of a locking bolt ID. The latter is threadedly engaged in the back edge of the fixed jaw I and carries a cam shaped head II. The latter may be adjusted to engage the back edge of the removable jaw 2 to secure the latter against the releasing movement, or may be adjusted to clear the said jaw 2, whereby the latter may be forced toward the back of the holder to effect its release. It is evident, that any other suitable locking mechanism may be employed without departing from the spirit of the invention.

When a blade 3 is positioned in our improved holder, the cutting edge I2 will project beyond the front edges of the clamping jaws I and 2. During stropping or honing operations the jaws are positioned flatwise on the strop or bone. Owing to the concaved outer surfaces of the jaws only the thickest point of the latter and the bevel of the cutting edge I2 of the blade will contact with sharpening element, as clearly illustrated in dash lines in the enlarged View in Figure 5. Such position of the blade provides the exact angular disposition of the latter for most effectively accomplishing the sharpening operations. When the removable jaw 2 is in the clamping position, the outer ends of the pins 5 are exactly fiush with the outer surface of said jaw 2. The jaws I and 2 are preferably provided with comparatively large, centrally disposed openings |3 for facilitating the release of the removable jaw 2 from the fixed jaw I, and to prevent the. formation of air pockets between the blade 3 and clamping jaws I and 2.

While the present invention is particularly intended for permitting the resharpening of safety razor blades in the efiicient manner employed in sharpening the old type of razor, it is apparent that the holder may be used for securing a safety razor blade while shaving with the latter or for any cutting operations adaptable thereto apart from shaving.

The present invention provides a most efiicient device of its kind, which may be cheaply manufactured, and which may conveniently be manipulated and employed for the purposes and in the manner herein set forth.

What we claim is:

In combination, a safety razor blade holder comprising a handle, a fixed clamping jaw formed integral with the forward end of said handle, a pair of spaced connecting pins secured to and projecting laterally from the inner side of said fixed clamping jaw, each-of said pair of connecting pins tapering from its free end to- Ward its attached end and from its front side toward its back side, a removable clamping jaw provided with a pair of spaced transversely disposed connecting slots decreasing in width from their front ends towards the back ends thereof, said slots having bevelled side walls for engaging respective connecting pins for securing the blade between said fixed clamping jaw and said removable jaw when the latter is shifted toward the front edge of said fixed clamping jaw, and a locking bolt shiftably engaged in the back edge of said fixed clamping jaw and having a cam-shaped head overlapping the back edge of said removable clamping jaw for securing the latter in the clamping position on said fixed clamping jaw.

JOSEPH P. GANZ.

JOHN P. STROBATZ.

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