US2512656A - Shaving instrument - Google Patents

Description

June 27, 1950 J. D. LANGDON 2,512,556

SHAVING INSTRUMENT Filed Oct. 24, 1947 FIG. I

specification; whichshow'n one'in'ethod of reduction to prac- Patented June 27, 1950 "UNITED STATES PATENT oFrsrc-a INSTRUIWENT J'esse DfL'angd'on, Long Beach-flalif. Application 061K856! 24, 1947, SfitifNO'Q78L975 '7" Claims.

1 j Tnepresent invention relates to shaving instrumehtas'afety razors and the'like, and aims to provide meanst'o adjust the angle of incidence "atwhich the razor blade is held; and provide other featuresinstrumental in meeting the fol- 4 lowing objects and purposes:

To provide "a 'gui'deine'onjunction with abla'de "aniiguard for thecuttmg edge thereof'whereby the'fcutt'ing edge is held "at asubstantially constant angle with relation to the surface to be ,snavedanu whereb'ythe angle ofincidence may "bechanged"withincertain practical limit by the "movement of J the handle of the instrument.

To provide atensionedadjustment of the angle 'ofin'cidencewith relation to a guard bar disposed forwardly of the cutting edge of blade. o

"Other "and further objects and purposes will appear during the progress of the following as illustrated by the drawings a shaving 'tice"whic'h may he changed within the scope of the claims.

Of the drawings:

Figfil'shows the 'fully assembled shaving instrunient's'ih'perspective viewed ata 'slight angle takeniromthe handle side.

Fig. 2 is a central transverse section of the "guard plate'razor blade and a fragment of the "handle-in assembled position.

Fig. 3 is a plan view of the guard plate "lookingtoward the convex side.

*l isaplan view looking'toward the convex' side of the guard plate.

Fig.5 "a. longitudinal section of the guard platelooking as afi-E-E, Fig. 4.

'Ihisapplication is a continuation inpart of Sn-No. 578,444, filed'Feb. 17, 1945, now Patent '2'; 434-,275-,=granted January 13,1948.

'Fi'g. '1 illustrates the'relative position of the *variouselements constituting the structure of the shaving instrument comprising the invention-including: -a handle I, a curved blade plate l having a threadedstud bolt- 3 attached to the center thereof. 'Iheplate 2 ha four blade retainers 4444 integral with and partly cut away from plate 2 and standing at an angle lateral totheplane of plate 2 and projecting from the concave side of the plate 2. Angle ad- :juSterS areJguideS '5-5 being formed by partly cut iawayiportions and alsointegral with plate 2. B-he guides =55 are suspended and extended -'-late'rallyfrom bothpends of the plate -2. The

guard bars 66 are c'ontiguouswith-theangle gu-ides t -5 and 'are extended beyond and lie:

parallel with and longitudinally of the" plate 2,

uard-Won both sid'esof -the plat'e-2. The double edged razor-"blade-1 is held in operative-position between the proximate end 1 0f the handle I I and the concavesi'de of thepIat'e'Z;

It will be observed that Figs. 1"and' 2illus'trate the bladeas b in hei-d in conformity with 'the "concaveside (if-plate -2 y the proximate" end of the handle -I. Ifhe'p'late 2 must therefore -'be stiffer than" the blade 1 which -is more -'flexible than -pl-ate -2, otherwise plate *2 would have 'to Fig. 2 illustrates in detail the handle 1' adjustably attached topl'ate 2 by means o'f 'threaded :stud 3; The bladeretaine'r *4"- 44--4- serve to 1 hol'd the blade 1 inparallelogram with *the guard Fig. 3 i beinga plan of the plate "2 yiewcii from the convex side, illustrates the-"niannerin which the bladeretainers A A- 4 4 are cut away from the bodyof the 'plate 2 and also shows-how the ends of the plate 2' are extended to==support the 25 angle adjusting gui'cl'es-5'---'5 and guard bars 6-'45.

Fig. e being a plan of -plate2 viewed from-the concave -side shows the :stud bolt *3 and the blade retainers l l ll standing awayfrom the concave-side ofthe plate -2.

ig. 5 --beinga 'longitudinalsection viewed 1 as 5P5, Figa =4, shows the plate 2 having -'-stud *3 riveted t'herethru, blade retainers -4-44-4 standing substantially laterally to the plane of plate i 2-, and' also the back *sideof the angle-adj-uste'rs 'i s standing away from the" convex side -of" the' plate 2.

The new features and results as o well as i the novelty-0f the instant 'invention are as follows:

Handle I: (It) -Is preferably provided with --a convex en'd proximate to a and having a *radius concomitant :to the c'ur-vature of the blade plate 2, wherebythe blade Tis'urged to conform with the-concave side 'of theplate i. (b) The handle I being the sole means of holding the -a'ssembled relationship of the-plate landthe-razor -bladeI whereby the latter is left free of an impediment to t the. passage of l'athergair, follicular scale and dirt between the cutting edgesof' the razor 1 and the guard bars 6-6; The net-result being -a more sanitary and l easily cleaned instrument as wen as non-clogging guard meansfor the cutting edge of the blade T.

-Theblade-1supporting platefl preferably made of a single :piece a of 're'silientsmaterial,ihaving normed-integrally -.contig'u ous therewith; .(a),

Blade retainers 4-4-4-4 forming aligning means for the blade 1 and holding the same parallelogram in plan. (b) Extending from the two ends of the plate 2 the variable angle adjustment means formed by guides -5 permit a slight change in the angle of incidence of the blade by changing the position of the handle according to the choice of the operator with a. view to changing the depth of the cut and closeness of the shave.

Stud 3 provides means whereby the various elements of the shaving instrument are held in operative assembly in conjunction with the handle I.

Blade retainers 4-4-44 preferably are integral extensions partly cut away from a single sheet of metal, such as spring bronze or the like and are extended substantially at right angles to the concave side of the plate 2 in a position to contact the two ends of the blade 1 which is shown to have an extension at either end lying between the retainers 4-4-4-4, thus preventing lateral or longitudinal movement of the blade and holding the same in alignment with the plate 2 including the angle adjusters 5-5 and the guard bars 6-6, all elements being held parallelogram in plan.

Angle adjusters 5-5 extended laterally from the two ends of plate 2 form spring arms suspending the guard bars 6-6 in parallax relationship to the fiat sides and cutting edge only of the blade 1 whereby a change of position of both the angle adjusters 5-5 and the guard barsG-G with relation to the cutting edges of the blade 1 .is permitted according to the angle atwhich ments thereof instrumental in bringing about the new results obtained by the instant shaving instrument the following claims are made:

1. A shaving instrument comprising a blade having a cutting edge, a guard plate, handle means urging the guard plate in contact with a fiat side of said blade, a springtensioned guard bar spaced forwardly of the edge of said blade, spring means attached to and extended at a tangent forwardly of that side of said plate that does not contact said blade, said spring means having a bend producing a tangent portion converging toward said plate, said converging portion being extended beyond the edge of said blade for holding the guard bar in operative position spaced away from the edge of said blade, the converging portion of the spring means adjacent said guard bar serving as guide means touching a surface to be shaved to influence the angle between the shaving surface, said guard bar and the cutting edge of said blade.

,2. An article of manufacture comprising a guard plate fora shaving instrument formed of a single piece of resilient sheet material and having a central portion for contacting a fiat surface of a double edged blade, means for attaching a handle to said plate, a narrow portion at each end of said plate extended at a tangent forwardly of the surface of said plate opposite the attaching means for said handle and being extended from a point near a longitudinal median line of said plate, guard bars formed integral with and extended between the ends of the narrow portions extended from the opposite ends of the plate and being spaced away from the opposite edges of said blade when assembled with said plate.

3. An article of manufacture consisting of a resilient sheet metal plate configurated to form a guard plate adaptable to be assembled with a fiat blade having a cutting-edge for-shaving a surface and comprising; a plate having a slot therethru, the inner border of said slot defined by a section of said plate providing a face for contacting a blade near and along said cutting edge, when assembled with said plate, the ends of the slot being defined by substantially narrow strip, portions paralleling each other and being out free fora distance along the opposite ends of the plate, said narrow strips having proximal ends attached to narrow extensions from the opposite ends of said plate, other narrow stripsbeing out free of the said plate, inwardly of the first strips, and extended at an angle to the first named strips from points inwardly of said slot, the free portions of the last named strips projecting at an angle from said plate and in substantially the same direction as a handle attaching means attached to and projecting from said plate, said second named strips providing aligning meansfor contacting the two ends of a fiat blade inserted therebetween to hold an edged portion of the blade in alignment with the inner edge of said slot means, said first named strips forming resilient arms supporting a guard bar ahead of said cutting edgeand defining the outer border of said slot.

4. An article of manufacture as defined by claim 3, the first named strips supporting the guard bar being looped forwardly of that face of the plate, that is awayfrom the handle attaching means, whereby the portion of the loop that is toward the guard bar wil1 contact the surface to be shaved.

5. Guard means for a shaving instrument of the nature described: comprising a rectangular plate formed with a central'plate portion having relatively narrow oppositely extended ends, arms extended laterally of the narrow ends and being bent away from the ends, at a" tangent forwardly of the top side of the plate, then havin another bend producing a portion converging toward the border of the plate that parallels guard bar means attached to the ends of said arms, a space forming slot means between the bar means and said central plate portion; said arms forming guide meansprojecting forwardly and lying at an angleto the top face of the plate,

the bottom face of, the plate adapted to receive a fiat bladehaving' acutting edge, thecutting edge projecting .towardthe slot and said bar means whereby saidbar means being positioned ahead of said cutting ,edge act in conjunction with said arms to guide said cutting edgeaccording to the angle of'that portion of the arms that is attached tothe two ends of said centralplate 6. A device as of claim 5; the arms supporting the guard bars being extended forwardly of the face of the plate that is opposite to handle attaching means projecting from said plate, said arms .then being be'ntand extended on a tangent approaching the same face, and. being adapted 5 plate portion is curved, a handle being adjustably attached to the plate and projecting from the concave side thereof, the flat blade being held in position between the proximate end of the handle and the concave side of said plate, where- 5 JESSE D. LAN GDON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,526,809 Sobleskie Feb. 17, 1925 1,876,906 Gaisman Sept. 13, 1932 2,048,625 Sanford July 21, 1936 2,219,099 Dunning Oct. 22, 1940 2,434,275 Langdon Jan. 13, 1948

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