US2347596A - Safety razor - Google Patents

Description

April 2.5, 1944.

J. DE SWART SAFETY RAZOR Filed April 9, 1943 www, 22 m Patented Apr. 25, 1944 SAFETY RAZOR J an de Swart, Los Angeles, Calif., assignor of onehalf to C. Bland Jamison, Beverly Hills, Calif.

Application April 9, 1943, serial No. 482,411

(Cl. sli- 47) 11 Claims.

This invention relates to safety razors and embraces improvements upon the invention disclosed and claimed in my copending application Serial No. 455,160, filed August 18, 1942.

One of the principal objects of my present invention is the provision of simple, ecient and durable means of detachably securing the handle element to the guard plate, my improvements being particularly adaptable for, though not necessarily restricted to, the combination including the guard and clamping means shown and claimed in and by my said copending application.

Another object of the present invention is the provision of a telescopic handle and one including means for somewhat resiliently gripping the guard plate toproducea firm assembly as well as to compensate for Wear.

A further aim is the provision of improvements in the blade-retaining means as well as in the clamping plate.

A still lfurther object concerns improvements in the means of mounting the clamping plate on the guard.

Additional objects and advantages are inherent in my invention and how those as well as the objectshereinabove,particularly pointed out are achieved will be best understood from the following detailed explanation of a presently preferred embodiment of the invention, wherein I shall refer to the accompanying drawing in which:

Fig. 1 is a side elevation partly in section;

Fig. 2 is a view slightly in perspective showing the parts disassembled;

Fig. 3 is a plan View of the guard plate;

Fig. 4 is a sectional `view 4ofthe device assembled, shown partly in elevation; k

Fig. 5 is a section on line 5-5 in Fig. l;

Fig. 6 is a fragmentary enlarged section;

Fig. 'lV is a plan view showing a variational form of head construction; and

Fig. 8 isa fragmentary sectional view showing a further variational form of device.

Referring now to the drawing, the three major elements of my razor are shown as comprising a guard plate .5, a blade-clamping plate 6 and a handle element l, a conventional safety razor Ablade B being adapted to be clamped between flanges to be flush with the under surface l2 of the guard plate. Preferably the guard and the clamping plate are made of a resiliently flexible material and I have found plastics tobe well suited for the purpose. Many suitable plastics are well known in the art. For instance, I have found the cellulose acetate and cellulose acetate butyrate molding compounds known as Tenite to be suitable.

The top end Wall l5 of the box-like handle element 'l' presents an upstanding lug I6 of T- shaped section (see Fig. 5) and the handle element is comprised of hollow, telescopic sections 1a, lb, so that it may be longitudinally adjusted to suit the desires of particular users. Moreover, such a handle provides a convenient storage space for extra blades, as well as the two head pieces when not in use. The handle sections are preferably of rectangular cross-section to provide a more effective hand-grip surface and the top end wall l5 presents at each end edge a transverse rib Il adapted to resiliently bear against th'e under surface of the guard plate.

The clamping plate 6 is provided with a pair of depending elongated lugs 20 adapted to fit into the conventional longitudinal slot S provided in available safety razor blades.

In the guard plate I provide a central longitudinal slot22 whose end portions are of a width to snugly receive the respective lugs 20 of the clamping plate and the medial portion of the slot 22 is T-shaped, having a stem portion 22a of a Width to snugly receive the medial portion of the handle lug I6 and has a relatively wider top portion 22e of a width to receive the cross portion I6avof th'e lug. The under surface of the cross portion 16a of the lug and the top surface of the walls of the slot dening the stem portion cf the T-slot are similarly inclined (see Fig. 6).

`To assemble my razor, the lug I6 is inserted longitudinally in the portion 22e of the slot in the guard plate and then is slid to the right so that the T-shaped lug engages in the narrower portion of the T-slot. Preferably the distance,

between th'e under surface of the cross portion Ita of the lugand the plane of the top surface of the rib Il on the handle end wall is such as to cause the central portion of the handle end wall at and adjacent the lug I6 to flex slightly outwardly when the ribs I1 engage the under surface of the guard plate and the cross portion of the lug I6 engages in the T-slot. This causes the guard plate to be somewhat resilientlyv clamped between the ribs l'l and the cross porover the end of the guard plate and then the lug l5 is moved in the slot 22 until it may be longitudinally withdrawn. The handle sections engage each' other with a relatively tight fricgagement with the guard plate, the medial end portions of the plate being recessed to expose a portion of each end of the blade whereby to enable a user simultaneously to manually grip the blade and recessed ends.

5. A safety razor comprising a guard plate presenting a longitudinal slot whose medial portion is T-shaped, a handle presenting a T-shaped lug slidably engaging said slot, and a blade-clamping plate superimposed on the guard plate, said clamping plate presenting spaced depending lugs extending through the blade and into the slot astride the T-shaped lug whereby to lock the Y last-named lug against sliding relative to the tional sliding fit so that the length of the handle may be adjusted to suit the preferences of any given user. The lower end of handle lo is provided with end flanges 1c which act as a stop against further telescoping of the handle sec-Y tions and also those flanges provide means for nger engagement to pull the handle'section lb out of section '1a.

In Fig. 8 I show a different form of ldevice wherein the under surface 4l of the T-shaped body lug lillcorresponding to lug l5 of the other Views-has a double taper to provide a Vshaped slot-engaging surface. Thus the lug le may be engaged against the tapered wall surface 4t2 defining the bottom of the T-slot in the guard plate 5a regardless of which edge of the lug #lil is inw serted in the slot first.

While, in the foregoing, I have resorted to consirable detail; of `structure and 'association of parts in describingy a particular example of my invention, I wish it to be understood that I have done so merely to make my invention understood and that I do not limit my invention to such details.` On the contrary, my invention is subject to modifications and is only to be limited asv appears in the appended claims.

I claim: Y 1. A safety razor comprising a guard plate presenting a longitudinal slot having a T-shaped medial portion, a handle having a T-shaped endportion slidably engaging in saidk T-shaped medial portion of the slot, a clamping plate Afor retaining the razor blade against the guard plate, said lastnamed plate having a depending lug fitting into the longitudinal slot, and means for detachably securing the clamping plate to the guard plate.

2. A safety razor comprising a guard plate and a handle, the handle presenting a T-shaped end.-

lug, Va longitudinal slot in the guard plate, the slot having a T-shaped medial portion whereby to slidably receive the lugand an intersectingA wider portion into which the lug may beinserted longitudinally preparatory to being received by the T-shaped portion, and means for clamping a blade against the outer surface of the guard plate. 3. A safety razor comprising a guard plate havpresenting a Tfslot h'aving a stem portion and a relatively wider top portion, the walls of the slot defining the stem portion having an inclined top surface, a handle having a resilient end` wall presenting a T-shape'd lug engagcable in the slot and a pair of projections one at each side of and spaced from the lug and being engageable against the under surface of the guard plate, and means for holding a blade in position against the outer surface of the guard plate.

7. A safety razor comprising a guard plate and a handle having a resilient top end wall, a T- shaped lug carried medially on the end wall, a pair of ribs on the end wall spaced from the lugs at opposite sides thereof, the under surface of the cross portion of the lug being inclined, said plate presenting a lug-receiving T-slot having a stern portion and a relatively wider top portion,- the walls ofthe slot defining the stem portion' having an inclined surface engageable by the iiielined surface of the lug, a lug-passing opening through the plate intersecting the T slot,. the distance between the under surface of the cross portion of the lug and the plane of the topY surface of the ribs being short enough to cause the end wall of the handle to be resiliently held in outwardly iiexed position when the lug engages in the T-slot, and means for clamping a blade againstythe outer surface of the guard plate."

8.A A safety razor comprising a .blade-retaining head and ya handle secured to the head, said handle being comprised of telescopic box-like portions.

having a resilient wall, means spacing theend portions of the wall from the `under surfaceoi the guard plate and a central T-shaped lug on said wall engaging in the slot and retaining the central portion of the wallagainst the undersurface of the guard plate.

ing a blade-receiving outer surface, the bottom surface of each end portion of the guard plate presenting an outwardly opening recess, a bladeclamping member mounted over the top surface of the guard plate, and a resilient depending flange on each end of the clamping member, each of Vsaid fianges having an inwardly disposed por l0. A safety razor comprising a guard plate and a handle having a resilienttop end wall, a

kT-shaped lug carried medially onfthe. end wall, a pair of ribs on the end .wall spaced from the lugs at opposite sides thereof, the under surface of the cross portion of the lug being inclined from its 1 end edges towards the center whereby to present substantially a V-shape, said plate presenting a z lug-receiving T-slot having a stem portion and a lug, a lug-passing opening through the plate intersecting the T-slot, the distance between the under surfaceof the cross portion of th'e lug and the plane of the tcp surface of the ribs being short enough to cause the end wall of the handle to be resiliently held in outwardly flexed position when the lug engages in the T-slot, and means for clamping a blade against the outer surface of the guard plate.

11. A safety razor comprising a blade-retaining guard plate presenting a T-slot having a stem portion and a relatively Wider top portion, the slot Walls defining the stem portion having an inclined top surface, a handle presenting a T- shaped lug slidably engageable in the slot, the under face of the cross portion of said lug being inclined from its center towards its sides whereby to be engageable against the inclined top surface of the slot Wall when inserted in the slot from either side of the lug.

JAN DE SWART.

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