US1847701A - Safety razor - Google Patents

Description

March 1932. N. TESTl 1,847,70

SAFETY RAZOR Filed April 24, 1931 WM M 1a 16 j! 15 15 INVENTOR Z5 Vi'c'hla eai Patented Mar. l, 1932 UNITED STATES PATENT OFFICE NICHOLAS TESTI, OF NEW YORK, N. Y., AS IGNOR TO GILLETTE SAFETY` RAZOR COI- PANY, OF BOSTON, IASSACHUSET S, A CORPORATION OF DELAWARE SAFETY RAZOR Application led April 24,'

My invention -relates to improvements in the class of safety razors in which a blade is retained in shaving position between clamping members, such as a guard member and a cap or backing member.

An object of my invention is to provide improved means for retaining the blade between clamping members including means for readily connecting the cap or backing member with 1o the guard member and releaslng said members in a simple manner.

My invention also comprises a resilient cap or backing member provided with means c0- operative with the other member or its handle for retaining said members clamped against a blade and including means to operate the first named means to release the cap or backing member. A

My invention also comprises novel details of improvements that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings wherein: v

Fig. 1 is a side view of my improved razor;

Fig. 2 is a section on line 2, 2, in Fig. 1;

Fig. 3 is a sectional view illustrating the pars in position for clamping or releasing a Fig. 4 is a section on line 4, 4 in Fig. 3;

Fig. 5 is a detail section illustrating the parts in an initial position for releasing the cap member;

Fig. 6 is a broken plan view tion on line 6, 6 in Fig. 2;

Fig. 7 is a side view illustrating a modification; K

Fig. 8 is a section on line 8, 8 in Fig. 7 and Fig. 9 is a view similar to Fig. 8, showing the parts in cap releasing position.

Similar numerals indicate `corresponding parts in the several views.

Blade clamping members are indicated at 1 and 2 adapted to clamp a blade 3 therebetween for shaving. The member 1 is shown as a guard member and the member 2 is shown as a cap or backing member for the blade. Any suitable means may be rovided for positioning the blade between t e` mem- 5 bers for shaving. As illustrated, the cap partly in sec- ...inwardly inclined surfaces 16 of the handle 1931. semi no. saam.

member 2 is provided with a split projection or stem 4 adapted to pass through apertures 5 in the b ade and through openings 6 in the guard member for positioning the blade between said members in a well known way. The guard member 1 is shown rovided with a tubular handle 7 which may be attached to the guard member in any desired way.

The callor backing member 2 is shown provided wit a substantially centrally disposed 60 7" projection 8 that isadapted to pass through an aperture 9 in the blade and through an opening 10 in the ard member and into the bore 11 of the handle. The free end of projection 8 is resilient to engage the handle 55 to retain the cap in clamping position against the blade. I have illustrated the projection 8 as provided with a stop shoulder 12 to engage an abutment 13 on the handle, within its bore, for retaining the cap in shaving relation against the blade, as in Figs. 2 and 8. By preference the projection 8 is made bifurcated, as by spitting said projection from its outer end inwardly at 14,

each prong. of the project-ion being shown 'Il provided with a stop shoulder 12 to engage a corresponding abutment 13 in the handle.'

The arms or prongs of the projection- 8 are set in a spread position to move outwardly to cause the stops 12 to engage the abutments so 13, and may be moved inwardly to release said stops from said abutments, (Figs. 5 and 9). The cap2 is preferably made resilient, as by being made of a piece of spring metal, and the projection 8 ma be riveted thereto, whereby when the cap s placed against a blade with the projection 8 passing into the handle 7, `as in Fig. 3, the outer inclined surfaces 15 of the projection 8 are slid along the to cause the prongs or arms of the projection 8Y to move inwardly, as inFig. 3, to permit the stops 12 to pass beyond and en age the abutments 13 to retain the cap in c amping relatioi upon the blade, as illustrated in Figs. 2 an 8.

Since the split portions of the projection 8 are adapted to spring outwardly to engage these stops 12 with the abutment 13 of the vhandle I provide means to move said projection reversely to release the sto 12 from the abutment 13 to permit remova of the cap 2 from the holder. In the example illustrated in Fi 1 to 6 I provide a rod or bar 17 slidable inthe bore of handle 7.and adapted to engage the inner end of projection 8 to move its stop'12 away from the abutment, when said rod or bar isfmoved inwardly. The rod or bar 17 is shown tubular, for the sake of li htness in wei ht, and its bore 18 is adapt'- to receive tie adjacent end of. projection 8. The inner edges 19 of bore 18V are shown inclined to engage and lfslide freely along the inclined or tapered surfaces lof the projection 8. Longitudinal movement of the. rod or bar 17 along l ,A trolled by a pin 21 carried by the handle and operative in a slot 22 in the handle., `V-Y` j j When a blade is to be inserted between the ard and the ca the latter will be. removed m the guard, t e bladel will be placed vupon the latter and the cap will be applied Aon the,l

blade, whereupon the projections-4iand 8 will pass through the apertured portion f the blade. When the cap engages the blade the cap will be ushed against the blade and will be bent su ciently to enable the stops or'd shoulders 12 to sprea and engage under the abutments 13, Fig. 2. The tension of the ca 2 will be in a direction away from the blade,

, hence will tend to draw and retain the stops 12 against the abutments 13, whereby the ca wardly along the handle until the inner' end of the bar engages the adjacent end of proection 8, and continuedvsliding of the bar will bend the end of projection 8 toward the longitudinal axis of the handle to release the stops pressed inward 12 from the abutments 13, as in Fig. 5', whereu n the cap may be withdrawn and removal o the blade may be effected.

In Figs. 7, 8 and 9 the handle is shown provided with fin er pieces 23 adapted to, be ,into the bore of the handle, to engage the adjacent ends of the projection 8 to release its stops 12 from the abutments '13. The finger pieces 23 may be formed by appropriately slitting the handle at y24, leaving base portions of the finger pieces attached to the handle. The handle may comprise resilient metal to enable the fingerv pieces to spring outwardly and so remain in normal position, whereb whenthe cap is applied on the blade the nger pieces will not interfere withstops 12 engaging the abutments 13, as in Fig. 8.

By means of my improvements the cap or backing member 2 may be readily applied over a lade on the guard member and be retained in clamping position thereon by merely applying the cap over the blade on the the handlef -7 is "conguardv and pushing on the cap todrcausel its projection 8 to engage the abutments 13 conparts. When the stops 12 are moved away from the abutments 13 the outward spring tendency of the cap will serve to withdraw the stops from the abutments, as in the position of Fig. 3, to permit removal of the cap from over the blade.

Changes may be made in the details set forth, without departing from the spirit of my invention, within the scope of the appended claims. l

- Having now described my invention what I claim Ais: f d

v1. sa et razor comprising a ar rovided with handle, said handlllliavirg a bore and abutments within the bore, a cap having a` bifurcated projection providing l separate arms, each arm having a stop to engage an adjacent abutment, said projection being adapted to enter said bore to engage the stops with the abutments, and means slmultaneously to release the stops from the abutments.

2. A safety razor as set forth in claim 1 in which the arms of the projection have inp clined portions and the bore of the handle has inclined surfaces to be engaged by said inclined portions'to permit passage of the stops D 0 p through the bore to engage said abutments. -w1ll be retalned pressing on the blade and the latter will be clamped between the guard and 3. A safety razor as set forth in claim 1 in which the cap is resilient to enable the stops to engage the abutments.

4. A safety razor comprising a guard provided with an abutment, a handle `havin a bore, a cap having a projection provided with a stop to engage said abutment, and a rod slidable along said handle and adapted to engage said projectionto release the stop from the abutment.

5. A safety razor as set forth in claim 4 in j which the projection has an inclined inner portion tobe engaged by said rod to move the stop away from the abutment.

6. A safety razor as set forth in claim 4 in which the cap is resilient to retain the stop and abutment in vengagement and to withdraw the stop from the abutment when the latter are released.

7. A safety razor comprising a guard provided with a handle, said handle having a 'bore provided with an abutment, and a ca having a projection provided 'with a stop to engage said vabutment,.the handle having a movable finger piece to engage the projection llb lid

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through the guard and engage the interior of said handle to hold the cap in lpllnace and a releasing member slidable wit the handle to and from position to engage and compress said stem. 10. A safety razor comprising ca and guard members, one having a tubular dle and the other a split stem with locking shoulders therein arranged to engage the in terior of the tubular handle, and an unlocking device slidable within the handle to and from position to engage the stem and hold the locking shoulders in releasing position the stem being thereupon movab e away m u' the unlocking devic NICHQLAS TESTI.

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