US1508485A

US1508485A - Safety razor

Info

Publication number: US1508485A
Application number: US623426A
Authority: US
Inventors: Charles M Szirmay
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-03-07
Filing date: 1923-03-07
Publication date: 1924-09-16
Anticipated expiration: 1941-09-16

Description

- 1,508,485 x c. M. SZIRMAY SAFETY RAZOR Filed March '7'. 1923 IN VENTQR A TTORNE Y or clearance tor the or in other words,

CELEB m. 53?

MAY, 01* NEW YORK, N. Y.

SAEETY AZO Application filed' name 7-, 1923. Serial he. states.

To all whom it may concern:

Be it known that I, CHARLns M. SzmMAY, a citizen of the United States residing at New York city borough of 1 anhattan, in the county of 1 ew York and State of New York, have invented certain new and useful Improvements in Safety Razors, of which the following is'a specification.

This invention relates to safety razors and has particular reference to that construction of razor which includes an adjustable blade or one whose edgeis variable with respect to the guard means and especially to the means for attachment made effective easily and readily by the hand that holds the razor handle.

Another object of the invention is to improve the construction with respect to the relation between the blade edge and its guard meansso as to afford perfect freedom. passage of the shavings, a construction in which the guard means is a smooth bar extending continuously in a certain line spaced from herein, still for the ment and combination ,stantially' flat and parallel to the edge of the blade.

With the foregoing and other objects in view the invention consists in the arrangeof parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested purpose of illustrating a ractioal embodiment thereof reference Is n to the accom anying drawings, in which like reference ch same parts inthe several views, and in which- Figure 1 is a side elevation razor, parts'being in section on of Fig. 3.

Fig. 2 is a longitudinal section on the line 2-2 ofFig. 1.

Fig. 3 is a horizontal section on the line 3-3 of Fig. 1, indicating the head and adof a misty the line 1-5-1 'jacent parts in bottom plan.

Referring now more specifically to the prising including a handle 10, the upper end-11 of which at least is hollow or tubular.

Y 12 is a head comprisi primarily a subplate oon havin on its lower or under side a liub 13 directe toward the handle and externally screw threaded.

Adjacent to the side edges of the'head are formed or suitably secured a pair of straight aracters designate the smooth guard bars 14 each connected to the main ortion of the head byhcurved arms 15. he efi'ectiveedgesof the barsare thereby upturned so as to extend longitudinally along and lie in a plane parallel to but above the plane of the main ortion of the head. The head is formed at its center with a hole 16 passing directly through the center of the hub 13, and on opposite sides of this hole are two other smooth holes 17.

Any suitable means may be provided to secure the handle rigidly to the head though preferably for the purpose of thorough cleansing of the parts the head and handle are connected detachably, as by means of a yoke comprising a thimble 18 and-a pair of spaced straps 19 and whereby the yoke may be termed skeletonized. lhe thimble is shown internally threaded for direct cooperation with the hub and to abut against the under surface of the head; It will be understood that in practice the connection is tight between the handle and the head and these parts if desired, may be retained so connected more or less permanently.

Along the upper side of the head is formed a relatively narrow longitudinal ridge 20 which extends begond the plane of the guide bars above re erred to and remote from the main plane of the head. The

holes

16 and 17 are formed also through this ridge. The spaces on opposite sides of the rid e, between the ridge and said upturned ateral ed s, constitute channels to receive and hold s avings during the process of shavin Any suitable ty of blade maybe used in connection witg this razor, but preferably one of the well known flexible species havin two shar edges is used as shown at 21. his type of blade ordinarily isformed with a row of three centrally arranged holes for attachment urposes and which register with the holes in the head above referred to. This blade'is applied next to the lid e.

An outer plate 22 is applied next to t e blade remote'from the head and is preferastly of crescent or concavo-convex form in section, the concavity-being next to the blade. The plate 22 "has a central threaded shank 23 fixed thereto and pro'ecting downwell known manner. The blade is prezterably oil fiat type but adapted to he flexed during the clamping and adjusting thereof for practical use. When the threaded shank 23 is drawn downward toward the handle the parallel edges of the plate 22 hearing downward upon the side pomions of the blade cause the bending of the blade downward below the plane of the top of the ridge and toward the plane of the bars M. It is even possible to so adjust the edges of the blade as to cause them to come within the plane of the bar edges, though in this limit of adjustment the cutting edges of the blade will have lost their eficacy. For practical use the adjustment approximates that shown best in Fig. 2 in. which the edges of the blade are slightly above the plane of the guide hars.

The best means now known to me for effooting the adjustment of the plate 22 and blade consists of a cylindrical nut 25 located within the yoke and having adjacent to its lower end an annular groove 26 into which the portion 11 of the handle may be spun, making a permanent connection between the nut and handle but with freedom of rotation of the nut within the handle and yoke. The upper end of the nut lies adjacent to the hub, more or less closely, and is provided with a threaded bore 27 for direct co-operation with the threaded shank 23. The reaction between the nut and the shank may'take place either against the hub at the end of the nut or between the grooved end of the nut andthe handle, but in either event the shank and plate 22 are drawn downward toward the head, causing the flexing transversely of the blade. The nut is easily accessible for rotation between the thumb and first linger of either hand of the operator, as to instance, the hand that grasps the hand e in his last three fingers, and yet in the practice of the razor the mani-pulation is had only with the handle and no danger of niisad ustment by the ancidental turning of the nut talres place.

llt will be noted thatthere is considerable space or capacity for the, hairs and lather to be received between the blade and the main portipn or the head, but the shavings mes es may pass ireely through the slots 28 formed between the bars ill and the main portion of the head, so that there can he no possibility of clogging of the instrument while in the operation is over the blade is easily removed for cleansing and drying hy'simply spinning the nut and thereby causing the pate 22 to move upward from the head, thus'setting the plate and blade tree.

ll claim:

1. In a safety razor, the combination of a head adapted to support a razor blade, the under side oil said head having a downwardly projecting threaded huh having a hat and smooth lower surface, a plate haw ing a threaded shank projecting through the head and hub, a handle, the upper end portion of which is slreletonized into a olre comprising a plurality of straps and a t imble threaded upon said hub, a nut journaled within the yoke between said straps and cooperating with said shank and plate and the lower huh surface to exert pressure upon l the bladewhen the nutis rotated, by reaction against mid lower surface.

2. In a safety razor, the combination with a handle, of a rigid head adapted-to support a blade, said head having upturned marginal edges constituting a pair of straight smooth guard outward from the plane of the main part of the head, slots being formed between the main portion of the head and the bars, the head having also alon narrow ridge midway etwen said bars and coextensive in length with the head and forming on its opposite sides channels to receive and hold shavings, an outer plate extending along the head and serving to bear upon and hold the blade against said ridge, and securing means for the plate extending throu hthe head and cooperating with the hand e, substantially as set forth. in testimony whereof I aids my sig' nature? 1 oneness M. sarnnar...

bars lying in a plane spaced its upper side a' guard