N° 14,526 A.D. 1909

Date of Application, 21st June, 1909 Complete Specification Left, 19th Nov., 1909—Accepted, 21st June, 1910 PROVISIONAL SPECIFICATION. Improvements in or relating to Safety Razors.

I, Julius Bueno de Mesquita, of 38, Holborn Viaduct, in the City of London, Gentleman, do hereby declare the nature of this invention to be as follows:—

This invention relates to safety razors and has for its object to provide improved means for attaching the removable blade whereby the same may be more expeditiously adjusted and secured in position in the holder and readily removed therefrom when required.

According to this invention the blade is mounted upon a plate having tines or teeth at the front edge as will be well understood. This plate towards the rear may be bent downwards, dished or recessed for the reception of the thickened back portion of the blade. The sides of the latter engage between raised ends or upwardly projecting flanges formed or provided on the plate the said ends being formed or provided with an abutment or stop against which the extremities of the cutting edge lie when the blade is placed in position on the plate. The plate is held in place by a spring or by springs arranged to engage or bear against the back portion of the blade; the spring being carried by the aforesaid plate. The latter is formed or provided with forwardly extending lugs which are adapted to lie away from or diverge from the under surface of the plate so as to afford a spring action, and thereby enable a guard which is hinged to the said lugs to engage the upper side of the blade with a pressure sufficient to preserve the same from displacement during the use of the razor. The guard may be somewhat in the form of a hood adapted to cover the blade excepting the cutting edge thereof; the hood or cover being retained in closed position by means of a spring catch adapted to be released by means of a button or other device located in or on the handle and convenient to the thumb or finger of the user. For example the catch may be arranged at the end of a strip of spring steel inserted in the handle the end of the strip remote from the catch being furnished with a projection arranged to pass through the hollow handle and to project beyond the outer surface thereof so that upon imparting pressure to the said projection the catch may be withdrawn from engagement with the guard or cover and the latter owing to the springy character of the lugs to which it is hinged will immediately be released and fly towards the front edge of the razor; thereby exposing the blade which may be readily removed and a fresh one placed in position by placing the extremities of the cutting edge against the abutments or stops and pressing the back portion against the spring so that the latter holds the blade in position. By turning the guard or cover over the blade and plate and pressing the same its engagement by the catch may be brought about and the device is again ready for use. The plate whereby the blade is carried may be arranged at any convenient angle with the longitudinal centre line of the handle, for example at a right angle or at any convenient inclination. The handle may be arranged at the rear side of the plate or centrally in relation thereto» or in any other desired relative position. The catch may be arranged exteriorly to the handle if desired and may be of any suitable type other than that hereinbefore described.

Dated this 21st day of June, 1909.

I, Julius Bueno de Mesquita, of 2 and 3, Stonecutter Street, formerly of 38, Holborn Viaduct, in the City and County of London, Gentleman, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:—

This invention relates to safety razors having a hood or cover which is pivotally secured to the supporting plate and adapted to be retained in the closed position by means of a spring catch which can be released by means of a button device, and particularly to razors in which a spring on the hood or cover presses the blade forward on the supporting plate against stops as the hood or cover is closed, the object being to provide improved means for attaching the hood so as to enable the removable blade to be expeditiously adjusted and secured in position in the holder and readily removed therefrom when required.

According to this invention the hood or cover is adapted to open and expose the blade when a spring catch pertaining thereto is operated. The supporting plate is formed or provided with forwardly extending lugs which are adapted to lie away or diverge from the under surface of the plate so as to afford a spring action, and effect the aforesaid movement of the hood or cover. The cover may be somewhat in the form of a hood, adapted to cover the blade excepting the cutting edge thereof; the hood or cover being retained in closed position by means of a spring catch adapted to be released by means of a button or other device located in or on the handle and convenient to the thumb or finger of the user.

In order that the said invention may be clearly understood and readily carried into effect, I will describe the same more fully with reference to the accompanying drawings, in which:—

Figure 1 is a perspective view of a razor embodying the features of my present invention shewing the hood open.

Figure 2 is a similar view with the hood closed and the razor ready for use.

Figure 3 is an enlarged section taken on the line I—I Figure 2.

The plate A, which receives and holds the blade B, is formed with tines or teeth a and with upwardly projecting flanges a¹ and forwardly projecting lugs a² to which the hood or cover C is hinged as indicated at a^x, the lugs a² being formed with laterally projecting hinge pieces adapted to serve as pins and to engage in apertures formed in extensions of the sides of the hood, as shewn. The hood is provided with a spring c which is suitably curved and formed with a projecting catch or lug c¹. The spring is secured to the hood at the point where the catch c¹ is situated and the spring portions c c thereof are arranged in such a manner as to engage the thickened rear portion b of the blade B and retain the same in position relatively to the tines and cover or hood C. D is the handle and E is a spring catch whereby the hood or cover is held or released; there being a springiness imparted to the hood or cover by reason of the front edge thereof engaging upon the upper surface of the blade and the loosely fitting hinge pin allowing of the displacement of the hood relatively to the plate. Thus, by applying pressure to the spring catch, the lug c¹ is released and the hood is thrown open by reason of the aforesaid springiness of the lugs a² (see Figure 1). The blade B is now exposed and may be readily removed and replaced by a fresh one, this being accomplished by placing the ends of the blade beneath the lugs or inwardly and downwardly turned portions a¹ a¹ and causing the extremities of the cutting edge to engage with the abutments or stops a⁴ a⁴, on the plate A. On turning the hood or cover C about its hinge a^x so as to bring the said hood into position over the blade B and plate A and pressing the hood downwards the catch or lug c¹ thereon will engage with the opening c^x in the catch E; the spring ends c c, press against the back of the blade and force it securely into position, the device being then ready for use. When the hood C is in its closed position, the forward edge c³ bears upon the blade with sufficient pressure to check any tendency to vibration while using the device, in the operation of shaving. The plate A may be arranged at any convenient angle with the longitudinal centre line of the handle D; for example it may be disposed at a right angle or at any convenient inclination. The handle D may be arranged rearwardly in relation to the plate A, or centrally in relation thereto or it may be arranged in any other desired position relatively to the plate. The catch E may be of any suitable type other than that hereinbefore described.

Although the plate A has hereinbefore been described as a single member, it may be more convenient to form said plate in two or more layers or members, as shewn in Figure 3. In such a construction the layers would be suitably riveted, bolted or secured together to form the single "plate". As shewn, the plate is adapted to firmly retain the blade in position but if desired the plate may be bent downwards, dished or recessed for the reception of the thickened back portion of the blade.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:—

1. A safety razor having a hood or cover which is adapted to open and expose the blade when a spring catch pertaining thereto is operated, for the purposes specified.

2. A safety razor in which the supporting plate is provided with forwardly extending lugs adapted to receive the hinged portion of the hood or cover in such a manner as to afford a spring action thereto, whereby the said hood is enabled to spring open and expose the blade when a retaining device is released, for the purposes specified.

3. A safety razor in which the aforesaid self-opening hood is adapted to apply pressure to the back of the blade when in the closed position, for the purposes specified.

4. A safety razor in which the self-opening hood when closed and fastened exerts a pressure at the front or hinged side and owing to the pressure applied by the hood at the back of the blade the latter is held firmly in position for shaving.

5. A safety razor having its parts constructed, arranged and adapted to operate substantially as hereinbefore described with reference to the accompanying drawings for the purposes specified.

Dated this 19th day of November, 1909.