US1907899A - Safety razor - Google Patents

Description

N. TESTI SAFETY RAZOR May 9,

Filed Jan. 2l, 1932 Patented May 9, 1933 UNITED STATES PATENT `OFFICE .j NrcHOLAs? TESTI, or `New YORK, N. Y., ASSIGNOR To GILLETTE SAFETY RAZOR COM:` f PANY, or BOSTON, MASSACHUSETTS, A CORPORATION or DELAWARE SAFETY RAZOR @Application filed January 21, 1932. Serial No. 588,039.

- This invention relates to safety razors of the typein-'which a thin,.leXible blade is clamped in operative position between cap and guard `members for shaving. In using razors of this type, the convenience of the user requires that the blade-positioning and clampinor operations 'be quickly and conveniently effected and that the cap and guard may be as easily Separated to permit the removal yand replacement of blades. My invention" contemplates a novel construction of cap and guard so constructed and arranged that these operations may be effected with an unusual degree of convenience and Without entirely disconnecting the parts, thus avoiding the annoyance of loose parts which may become misplaced and lost. VTothis end, an important feature of my invention comprises co-operating cap and guard members directly interconnected with each other byimeans of a connection which permits them` to be superposed in blade-clamping relation or `to be moved in a path at right anglesto each other for `the purpose of eX- posing theblade-receiving face of one member.V

` There are many Ways in which the desired results may beachieved, but as herein shown, I provide an opening in the guard member of such dimensions that the cap member may be tilted into angular position and passed freely` therethrough. `In this way, the blade-receiving face of the guard may be fully exposed so that a blade may be pre sented and removed bytheuser without obstruction of any kind.V By providing limit stopsat the opposite ends of the cap, the latteris prevented from being entirely disengaged from fthe guard at any time. The cap ,is ,thus maintained at all times within convenient reach of the user who is never at a lossto determine its whereabouts. `The manipulation of the cap in this manner, moreover, may be effected without danger of cuttingthe fingers or damaging the sharp edges ofthe blade.

. I have referred to limit stops for preventing complete disengagement of the cap and guard. In accordance with another feature of the invention, I may provide limit stops in the shape of projecting lugs which havethe additional function of co-operating with recesses in the blade or in the guard to es-L tablish an accurate location of the cap with respect thereto-g or `the Vlimit stops may be Y poses ofillustration and shown in the ac-` companying drawing, in which,-n

Fig. l is a view of the razor in end eleva-` tion. j A l Fig. 2 isa View in longitudinal section. Fig. 3 is a view` in perspective showing the razor in blade-receiving position.

Fig. 4` is a plan View of the assembled razor, portions of the cap beingbroken away.A

Fig. 5 is a similar view showing the'blade removed, and i F ig. 6 is a plan view ofa blade suitable for use;in arazor. 1

The razor shown in thedrawing comprises a cap member l() having a lower, concave, blade-shaping surface and parallel longitudinal edges adapted to contact with the blade adjacent to its cutting edges. The `cap is provided with a pair of recesses l2 in its blade-engaging face and with a centrally-disposed threaded hole 14. At one endof the cap is provided a pair of projecting lugs 16 and atthe other end a pair `of out-turned hookslS. H

The guard member 20 of `therazor has a generally convex blade-shaping face havinvr formed therein a pair of parallel shoulderts? over whichvthe blade is flexed when clamped 1n operative position. Along its opposite edge, the guard member 20 is providedwith teeth Q2 as is customary in razors of this type. A pair of spaced, blade-locating studs 24k proj ect from the blade-engaging face of the `guard and a pair of recesses 26 is provided at one end to receive the lugslof the cap with clearanceand so permit the latter to assume its proper relative position tothe guard. At its other end, the guard is provided witha bail-shaped projection 28 forming with the body of the guard a transverselyextended passage of such dimensions as to receive the cap 10 freely when the latter is turned into a substantially upright position. as indicated in dot-and-dash line in- Fig. 3. The rear end of the guard, or the inner wall of the opening formed by the bail 28, acts as a transverse fulcrum shoulder upon which the cap may be tilted from the horizontal position shown in Fig. 2 to the vertical position shown in Fig. 3. The hooks 18 project downwardly through the opening formed bythe bail 28 when the cap is in its horizontal position and, when :the cap-is tilted, the hooks 18 swing in under the guard. The shape of theopening formed by the bail 28 is best shown in Figs. 4- and5, Fig. 5 showing also the iamount of clearance aiiorded to the cap 10 when the latter isin its upright position.

. A f'blade 30, suitable for use in the illustrated razor, is shown in Fig. 6 This is provided with oppositely disposed cutting edges 'and with-corner recesses 32 designed to fitaccur-ate'ly upon the cap vlugs16l and the hooks 18'. The blade is. also provided with an V.aperture 34 comprising :lan elongated slot fhavi-ng spaced enlargements shaped to fit upon the blade-locatingl studs 24 -of the guard and 'thus' accurately locate the blade in position when it is presented thereto.

The-handleof the razor comprises a barrel 36 having a solid Vhead `which is riveted or other-wisesecurely fastened to the guard 20. Within the barrel 36 is freely received a stem38, threaded at, its upper end to lmake clamping engagement with the threaded hole 14 of the cap 10 and provided at its lower end-with ta-knurled head 37 for convenience in manipulation. VVithinthe-barrel 36 the stem-38is provided with a collar 39 and the end `oftheibarrel 36 is flanged beneath this collar and between it andthe knurled head 37,"so that the stem is confined-to limited longitudinal movement in the handle.f When disengaged from-itsthreaded connection withl thefcap 10,-'the1stem-38 is free tofdrop until its collar 391engages Ltheliangeat the lower end of the barrel 36 vand in this movement the upperJendiof the-stem 38 is brought Hush with the blade-engaging face of the guard 20, as

v showniin-Fig. .3. Y

It iwillbe 'noted :that the parts of the razor herein disclosed are at-.alltimes connected so thatsin -usefthere @isf lnokdanger of misplacing-.loose parts. On theother. hand, the-construction .is such :that the .blade-receiving face of the guard 2O is; fully `exposed without obstructionv when .in `blade-receiving condition, the. 'cap .being entirely removed and droppedbelowtheblade-receiving face ofthe guard. On `:theother hand, .the :cap may be easily .brought .intoblade-clamping position :andareadily clamped to establish the .shavin g relationship of the parts. With the razor in the condition shown in Fig. 3, the blade may be conveniently placed by the user upon the guard, being accurately and positively located by the studs 24 which engage the enlargement inthe blade-locating aperture 34. The cap 10 may then be brought-into its superposed, blade-clamping position by slipping it upwardlyv through the opening in the It will be understood that the bladeiis 14ar:-l

curately located upon the vguard member x20 by means of the studs 24', the outer ends whereof are received with clearance recesses 12 of the capv member. The `cap member, onl the other hand is accurately located with respect lto-the lblade 30 by -theiengagement of its lugs 16 4andhools 1f8 with the recesses 32 of the llatter and thus @proper registration and alignment ofthe whole assembly is insured.

Having-thus described my invention what I claim and ydesire to secure by Letters Patent of lthe'United States is: v

1. A. safety razor comprising aguardf-me ber having an opening :through one endithereof, and-acap shorter than the guardarranged to be superposcd -thereon and having spaced retaining projections extending through said opening, the in-neredg'e-of theopeninglserving as a fulcrum shoulder about vw'fhich the cap-maybe tilted. to carryV saidretainiing projections beneath the guard and in positioning 'itself for passagevmtosaid opening.

2. A safety razor comprising ia'guardlha-ving a blade-supporting-face anda-transversely-extended Ypassage located adjacent :to one end of said face,v a cap 4having aco-operating concave blade-flexing face .and *means for permanently Kconnecting the lcap `to the guard which lea-ves the Icap free to be tilted into a positionin which yit :may be moved endwise throughthe passage in the' guard and suspended in vertical position therefr'fom,l 3. A vsafety razor' comprising cap l"and guard members shaped to clamp between Vther'n a flexible 'blade when arranged insuperposcd relation, one of said lmembers having an opening therein through which the other may be moved endwiseto .exposethe blade-engaging face of the other, and means for limiting such endwise movementfand .pre- .venting separation of zsaid members. l

4. A safety razor comprising .,a guardv member having at oneendabail-shaped proj ection. supplying :a transverse opening, and

a cap of less width than said opening having a concave blade-engaging face disposed opposte to the guard and spaced lugs extending from said face and of sucent length to engage the inner edge of said opening when the cap has been passed through the same for substantially its full length.

l NICHOLAS TESTI.

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