US2319361A - Safety razor - Google Patents

Description

May 18, 1943 D. c. wlsELEY SAFETY RAZOR v Filed Manin-7, 1941 16 l ,Don/. Wiseley" mwfzf Patented May 18, 1943 UNITED STATES PATENT OFFICE SAFETY Razon` 1.Don C. Wiseley," Los ngeles', ali'f'. Apiicauo `trauen 7, 1941,se'ria1Ne. 382,232

' :i4 claims. (o1. sli-495 This invention relates; to' safety razors and has for its aim" 'the provision of a head and a cooperating guard so formed as to cause the usual shaving blade held therebetween to assume a shape best calculated to afford a satisfactory and easier shave than possible in devices of the prior art.

One object of the invention consists in providing a safety razor having a cutting blade both of whose longitudinal and transverse surfaces are forcibly curved.

Another object of the invention is to provide a holder for the usual exible flat surfaced razor blade which will, when its parts have been drawn together, press the blade out of the planes of its transverse and longitudinal axes and thereby curve the surfaces of the blade both laterally and longitudinally.

A further object of the invention is to provide a safety razor, the holder parts of which are easily and quickly assembled to form and shape the usual flat surfaced flexible safety razor blade into one having its surfaces curved throughout its length and breadth.

The purpose in providing a safety razor wherein the surface of the cutting element is curved out of the plane of its transverse axis lies in vthe fact that the blade will thereby be more t `form more nearly to the general contour of the face since the latter is more curved than fiat.

Other objects of the invention, as well as the advantages thereof, will appear more fully in the following description of the invention taken in conjunction with the accompanying drawing.

In the drawing: i

Figure 1 is av front elevational view of the safety razor constituting my invention.

Figure 2 is a side elevational view thereof.

Figure 3 is a plan View looking down from the top of Figure 1.

Figure 4 is a partial, sectional elevation on line 4-4 of Figure 1.

Figure 5 is a plan view of the guard.

Figure 6 is a longitudinal side elevation of the guard.

Figures '7 and 8 are sectional side elevations taken, respectively, on lines I-l and 8-8 of Figure 5.

parts, a head m; s guaa- 1 1, s hande irais? blade I3 held securely between the' l'ad- I0' and the guard II. The head IE] is preferably provided with an integral threaded stud I4 passing through suitable apertures in the blade I3 and guard Il and' is received in a cooperating hollow threaded portion at the upper end of the handle, as shown in Figure 4, whereby tightening of the parts is made possible.

As shown in Figure 1, the outer surface of the head I0 is depressed or dished out at C along its longitudinal axis. The depth of the depression is greatest where the central longitudinal axis of the head I0 meets the vertical axis of the handle I2 and its extent is indicated at D in Figure 4.

Similarly, the marginal longitudinal edges E and F of the head ID are curved downwardly, as at 4, along curves substantially parallel to curve C in such manner that the greatest depth of the curved portion of these marginal longitudinal edges is reached along the vertical axis of the handle l2.

As shown in Figures 5 and 6, the upper surface of the guard II is formed to cooperate with the head I0. For this purpose, the guard is .hollowed out on opposite sides of its upper longitudinal axis as illustrated at G and H. In other words,

the top surface of the guard II tapers from the upper4 longitudinal axis L-A downwardly towards the extremity of the guard teeth I 5 and I6. The upper surface of the guard' II is also dished out along the upper median transverse axis T--l-l1 thereof. The extent to which the guard is dished out along its transverse axis is clearly indicated by Figures 7 and 8 which are sections taken, respectively, near the end of the guard and along the middle transverse axis thereof. The greatest depth of the depression is shown at K in Figure 6.

When the blade I3 is secured between the head I0 and guard I I and is tightened by screwing the handle I2 on the stud I4, the blade is forced to assume a shape imparted thereto by the co-acting portions of the under face of the head lil and the upper face of the guard I I.

The marginal longitudinal edges E and F of the head IU force the blade I3 along the hollowed out portions G- and H of the guard in such manner that the cutting edgesof the blade are curved downwardly as best shown in Figure l. In this manner the cutting edge of the blade will follow the general contour of the face which is not flat but curved.

Due to the depression K, Figure 6, at the upper surface of the guard II,\ the blade I3 will be squeezed between the head I0 and the guard in such manner that the blade is curved out of the plane of its transverse axis. Consequently, the blade will more easily be held at the proper angle for the cutting operation.

It has been found from repeated use of a razor designed as explained above, that curving the blade from side to side provides the proper angle for a better cutting edge and curving the blade from end to end provides a surface that conforms more nearly to the contour of the face.

Having thus fully described the invention, what is claimed as new is:

1. In a razor, a head, a gua-rdl a blade between said head and guard, means for pressing the blade between the head and guard, said head and guard having cooperating surfaces whereby the blade is curved along its longitudinal and trans-V verse axes in opposite directions, and the outer surface of the head being generally concave from endto end to accommodate the contour of the face of the user.

2. In a razor, a head, a guard, a blade between said head and guard, means for pressing the blade between the head and guard, said guard having a depressed portion along its longitudinal axis, said depressed portions being in contact with the blade, and said guard being correspondingly depressed out substantially along its longitudinal axis, whereby the blade is curved along its longitudinal and transverse axes when the head and guard are pressed together.

3. In a razor, a headI a guard, a blade between said head and guard, means for pressing the blade between the head and guard, said head being generally dished out along its longitudiknal axis and having an arcuate cross-section ualong its transverse axis, and said guard having depressed portions along its longitudinal and transverse axes cooperating with the head whereby the cutting edges of said blade assume a dish shape from end to end and said blade assumes an arcuate shape from side to side. Y v

DON C. WISELEY.`

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