Gillette Adjustable Injector Razor
InventionRazor with Adjustable Guard
FiledSaturday, 17th July 1948
PublishedTuesday, 8th December 1953
InventorMeyer Joseph Shnitzler
OwnerThe Gillette Company
An adjustable injector razor designed for Gillette. Never made.
Parts not referenced in the text: None
Parts not referenced in the images: None
This invention relates to safety razors wherein a thin, sharp-edged blade is presented in shaving position between cooperating blade-clamping members.
The general object of the invention is to provide such a razor with means under the convenient control of the user for varying and regulating the edge exposure of the blade. This is a critical factor in obtaining smooth and satisfactory shaving. The optimum edge exposure is different for different users, for different blades and for different shaving conditions. Accordingly, the present invention contemplates a razor construction wherein adjustment of edge exposure may be made conveniently at any time, even without interrupting the shaving operation if desired.
A more specific object of the invention is to provide means for such adjustment of edge exposure in safety razors of the magazine type, that is to say, razors constructed and arranged to receive fresh blades presented mechanically from a magazine and wherein the blade-clamping members are arranged to be temporarily separated to receive a fresh blade and then moved or restored to their operative blade-clamping position.
With these objects in view, a feature of the invention consists in a safety razor construction comprising opposed blade-clamping members, one of which may carry an edge guard, in combination with a second edge guard adjustably mounted upon the other of the blade-clamping members. Preferably, and as herein shown, the adjustable edge guard is constructed and arranged for adjustment independently of the blade-clamping action of the clamping members. In the preferred embodiment of the invention, the adjustable edge guard is shaped partially to enclose one of the blade-clamping members with sufficient clearance to permit full range of adjusting movement without in any way disturbing the clamping member with which the guard is associated.
These and other features of the invention will be best understood and appreciated from the following description of a preferred embodiment of the invention selected for purposes of illustration and shown in the accompanying drawings in which:
The invention is herein shown as embodied in a safety razor utilizing a thin, single-edged blade, which is held in flat position by the blade-clamping members of the razor, although with appropriate modification the invention is capable of adaption to razors utilizing a blade which is flexed in shaving position.
The illustrated razor comprises a handle
The upper portion of the main support
The upper edge-guard member
The forwardly and downwardly-extending portion of the edge guard
Having thus disclosed my invention and described in detail an illustrative embodiment thereof, I claim, as new and desire to secure by Letters Patent:
1. A safety razor comprising upper and lower angular members presenting forwardly and downwardly extending blade-clamping members, a blade clamped between said members, blade locating lugs on the lower of said members, an upper guard member having a flat portion overlying the blade and provided with a rectangular window surrounding with clearance the blade-engaging portion of the upper angular member, and threaded adjusting means for shifting said guard member without disturbing the engagement of said upper and lower blade-clamping members.
2. A safety razor comprising a blade, superposed forwardly opening blade-clamping members of which the lower is extended to provide a lower guard for the blade edge and the upper of which terminates at a distance behind the blade edge, an upper guard for the blade edge having a flat blade-engaging portion provided with a window that surrounds the blade-engaging portion of the upper blade-clamping member and an adjustable connection between said upper guard and the blade-clamping member surrounded thereby whereby the relative position of the two may be varied to adjust the edge exposure of the blade.
3. A safety razor including in its structure upper and lower blade-clamping members, a blade clamped at its opposite faces between said members, stops on one member for determining a fixed relation between it and the blade edge and an edge guard adjustably mounted in the razor and having a flat portion provided with a window in which is received with clearance the upper of said blade-clamping members, whereby the edge guard may be adjusted without disturbing the clamping engagement of either member with the blade.
4. A safety razor including in its structure a blade, a lower member having an extended flat blade seat and a lower edge-guard portion, an upper edge guard engaging the upper face of the blade behind its cutting edge and having an elongated window therein and an upper blade-clamping member having a portion movable within said window and engaging the blade in a zone behind the upper guard, and means for adjusting the upper guard toward or from the blade-engaging portion of the upper blade-clamping member and at the same time toward or from the edge of the blade clamped thereby.
MEYER J. SHNITZLER.
References Cited in the file of this patent
UNITED STATES PATENTS