US1766397A - Safety razor - Google Patents

Description

June 24, 1930. 1 MUROS 1,766,397

SAFETY RAZOR F 1ed March 22, 1928 y INVENTOR BY A ,f ATTORNEY Patented June 24, 1930 A man? JOSEPH MUROS, OF NEW YORK, N. Y.

SAFETY RAZOR Application :filed March 22, 1928. Serial No.. 263,666'.

The present invention relates to improvements in safety razors, land more particularly to that type in which a blade holder is oscillatably mounted upon a frame, the cutting edge of a blade co-operating with a guard, which is movable and provided with lugs adapted to be engaged by said cutting edge, the arrangement being such that the said lugs are capable of being disengaged from the blade to permit the latter to be swung into a position in which it may be stropped.

The main object of the invention is to generally simplify the construction above referred to and thereby not only to make it less expensive to manufacture, but also considerably lighter in weight.

With these and other objects in view, which will more fully appear Vas the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims, without departing Vfrom the spirit or sacrificing any ofthe ade vantages of the invention.

A few of the many possible embodiments of the invention are illustrated in the accompanying drawings, in which i Figure 1 is a side elevation of a safety razor constructed in accordance with the present 35 invention; Fig. 2 is atop plan view thereof; Fig. 3 is a bottom view of the same; Fig. t isa section taken on line 4l-1 of Fig. 2; Fig. 'is asectional view of a detail of construction,y on a larger scale; Fig. 6 isa section 4 plates 11 a spindle 16, to which is xed a 55 strop Vengaging roller 17. This roller is spaced from the blade holder, as more clearly appears from Figs. 4 and 6 of the drawings. Below and infront of the spindle 16 is mounted inthe bearing plates a spindle 18, and on the latter is revolvably arranged a strop engaging roller 19. In the plane of the roller 19 is rotatably mounted, in a manner hereinafter to .be described, between the bearing plates a third strop engaging roller, denoted'by the numeral 20. On one end of the shaft 12 is mounted a pinion 21, meshing with a pinion 22 on the spindle 16. The razor strop 23 is adapted to be engaged with the rollers 17, 19 and 20, and, due to the coii- 70 nection above referred to between theV shaft 12 and spindle 16, the movement of the roller 17, when engaged -with a strop, is imparted to the shaft 12 to swing the'blade holder 13 and the blade 15 back and forth, thus en- 75 gaging rst one side and then the other side of the blade with the strop, attention being called to the fact that the roller 17 and the rollers 19 and 20 frictionally engage opposite sides/of ythe strop, as well known in constructions. of v.this type. Therefore, when the razor frame is reciprocated back and forth in relation to the strop, the frictional engagement of, the strop with the roller 17 revolves the latterl first in one direc- 85 tion and then in the other. t `The frame 10 is, preferably, Vdetachably mounted upona handle 24.`

llVithA the blade co-operates a blade support which is, preferably, made of wire bent into bail-shape. The length of this support exceeds somewhat that of the lengthof the blade, and it includes a bar 26, extending in parallel relation to theV cutting edge 27 of theblade, and two rearwardly extending sece5 tions 28 which extend at right Vangles to the said bar, the free ends of the said rearwardly extending sections being bent toward one another, as indicated at 29, and areeach extended through an aperture 30 in the respeeicc thus a tive bearing plate 11 into the hollow roller 2O above referred to. In Fig. 5 of the drawings the inwardly bent sections 29 of the blade holder are shown as being reduced in diameter, but this is not essential. As appears from the foregoing the blade holder is pivotally mounted on the bearing plates 11, its sections 28 being` spaced from the outer faces of the said bearing plates and adapted to (3o-operate with rivet heads 31 on the ends of the spindle 18. These rivet headstexte-nd` beyond the outer faces of the said bearing plates and (2o-operate with the blade holder in a manner hereinafter to be described.

On the bar 26 is rigidly mounted a pair of lugs 32, spaced apart a distance that is somewhat less than the length of the razor blade. These lugs may be of any suitable construction, comprising, in the case illustrated in Figs. l to G, inclusive, of the drawings, each an upwardly and rearwardly extending portion 33. which is adapted to overlie one end of the cutting edge of the blade. and an upwardly extending portion 34, disposed-in rear of the bar 26 and adapted to abut against the underface of theblade. Then the blade is in engagement with these lugs, it is held in shaving position upon the blade support, its cutting edge being disposed in rear of the front edge 35 of the bar 26 and spaced from the said bar a distance necessary to obtain proper shaving. The bar forms guard for the cutting edge of the blade. As appears from Figs. l to 6, inclusive, of the drawings, the lugs 32 partly embrace the bar 26, projecting in front thereof. This, however, is not essential. It is possibleto so construct the said lugs that they are wholly disposed inrear of the front edge of the said bar, as clearly shown at 36 in Fig. 7 of the drawings. In this instance the lugs are also each provided with an upwardly and rearwardly extending portion 3'?, for engagement with the cuttingedge of the blade, and with a portion 38 adapted to abut against the underface of the blade.

In the positions of the elements shown in Figs. l to 4, inclusiveof the drawings,the blade support and the guard, forming part thereof. are in shaving positions. .If it is intended to strop the razor, the said blade support is swung from` the position shown in Fig. l of the drawings, into the position shown in Fig. 6 of the drawings-the blade being thus disengagedefroin the positioning lugs 32, thereby permittingthe said blade to be swung into a position in which it may be stropped. After the stropping operation, the strop 23 is disengaged from the razor and the blade support swung from the positien shown in Fig. 6 of the drawings into that shown in Fios. l to 4, inclusive. As it is swung into the said position, the krivet -heads cause first a longitudinal expansion,

as it were, of theblade support, when the latter' is being engaged with the rivet heads, and, when the sections 28 of the support have passed the highest points of the rivet heads the support is kept firmly in shaving position. s Of course, any other suitable construction may be employed for this purpose withoutdeparting from the invention, which lies mainly in the provision of a bail-shaped blade support, pivotally mounted on the bearing plates of the device and provided with lugs, which each have a cutting edge overlying portion and a razor blade underface engaging section.

The advantages of the construction herein described are not only simplicity, ease of manufacture, lightness in weight, but consist also in that the underfaceof the front portion of the blade isk free, so that not only will lather drop off the razor during shaving, but the razor may also be conveniently rinsed under a faucetvfor cleaning purposes. Itis to be noted that a considerable amount of material 'is saved in` the construction herein described compared with the devices heretofore in use, in which the combined blade support and guard is usually in the form of a solid curved plate provided with guard teeth. In the 'case illustrated the guard. ofthe razor is in the form of a smooth bar, which not only can be conveniently cleaned but presents a smooth surface to the skin as the razor lis being drawn over the face of the user. If found necessary, transverse grooves may be cut into the upper face of the guard bartoobtain the effectA of the usual guard teeth.

What I claim is 1. A. safety razor comprising a frame including two spaced bearing plates, a blade holder oscillatably carried on said plates, a blade on said holder,a bail-shapedl support including a bar element for co-operation with the cutting edge of said blade and two rearwardly extending-sections extending inparallel relation to and spaced from the outer faces of said bearing plates, the free ends of said rearwardly ext-ending sections extending through said bearing plates toward one another and forming pivot pins for said blade support, means on said bar element adapted to supportsaid-blade and4 for rspacing its cutting edge from said bar element, andfa strop engagi-ng roller rotatably arrangedon the free ends of said pivot pin elements.

2. A safety razor .comprising a frame,fin cluding two spaced bearingplates, ablade holder oscillatably .carried by said-plates, a blade on said holdena blade support made of a single piece of wire bent into bail-shape and including a bar extending in parallel relation-to the cutting edge: .of said blade and two rearwardly extending sections running at right-angles to said bar and having their free ends bent toward one another, said bearing plates being provided with two registering apertures. inwhich. the xfree ends.. of said bail-shaped wire are seated whereby said support is pivotally mounted on said frame, means on said bar adapted for supporting said blade and for spacing its cutting edge from said bar, two projections on the outer faces of said bearing plates for co-operation with th-e two rearwardly extending sections of said blade support, said projections causing said rearwardly extending sections to recede from one another when riding over the same and permitting the same to spring back to normal positions when disengaged from said projections so that said blade support is kept by said projections in shaving positions when said lugs are in engagement with said blade.

Signed at New York, in the county of New York, and State of New York, this 21st day of March, A. D. 1928.

JOSEPH MUROS.

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