US1672310A - Safety razor - Google Patents

Description

June 5, 1928. 1,672,310 E. L. EDGAR SAFETYv RAZOR Filed March 22, 1927 Patented June 5, 1928.

UNITED STATES",

ERNEST L. EDGAR, OF EDGEWOOD, TEXAS.

SAFETY RAZOR.

Application filed March 2 2, 1927. Serial No. 177,402.

This invention relates to an improvement in safety razors wherein the handle portionis made up of two sections adapted for relative sliding cooperation to permit the parts 5 to be arranged in compact, completely protected condition when not in use, with sa1d handle parts arranged for pivotal or swinging cooperation when extended to per-mit the razor'to be handle in a manner corresponding to the old type of razor.

An important object of the present invention is the provision of a handle part in which a combined blade holder and guard is slidably and removably mounted, the guard being adapted to form a more or less permanent part of the blade holder and being held in its relation to the blade by the handle part, the latter being formedto permit aparticular play of the guardv relative to the blade when the blade is being sharpened or honed, and a further and particular play of the guard relative to the blade when the latter is being used for shaving. The invention is illustrated in the accompanying drawings in which:

Figure 1 is a view in side elevation of the improved razor, the handle parts being shown extended and adapted for relative pivotal or swinging movement in the use of the razor for shaving orhoning purposes. Figure 2 is a similar view, the handle parts being collapsed in the positions occupied when the razor is not in use. Figure 3 is an enlarged broken elevation, showing particularly the means for permitting different movements of the guard relative to the blade as desired in the shaving or honing use of the razor.

Figure 4 is aview in elevation of the blade holder and guard, the blade being shown in position therein.

Figure 5 is a section on ure 2.

Figure 6 is a'section on line 6-6 of Figure 1.

Figure 7 is a broken edge view of the connected end-of one of the handle parts.

Figure 8 is an end view of the razor illustrating the play of the guard.

Figure 9 is. a broken perspective detail of line 5.5 of Fig The improved safety razor comprises a handle portion made up of a housing section 1 and a bar section 2, the parts correspond- ,ing in length preferably though not necessarily to the handle and blade portion of the housing section.

blade, so that such may be re adi old type of razor. The housing section 1 of the handle is a metallic strip of inverted U- .form, asvat 3, having the'side walls extend- .ed from a point about substantially midlength the section toward the bar' section connected end to provide lips 4, the latter converging downwardly to provide an outlet 5 of somewhat less transverse dimensions than the normal similar dimensions of the housing proper.

- The lower edges of the lips 4 incline upwardly toward the bar connected end of the section, as at 6, for a purpose which will later appear. The walls of the housing section defining the U-shaped form are longitudinally slotteljl, as at 7, the slots being closed at their resp ctive ends and terminating immediately adjacent the bar section connected end of the housing section. V I a The bar section of the handle comprises a bar-like rear end 8 formed with an opening 9 to receive a headed pivot pin 10 which slidablycooperates with the slots 7 in the That portion of the bar 8 in rear of the pivot pin 10 has its sides rear-. wardly convergent, as at 11, "to provide a substantially wedge portion and the upper surface of this bar portion 8*may,'if desired, be slightly concaved, as at 12, throughout the length in rear of the pivot pin 10. In.

advance of the bar portion 8, the bar section of the handle is of inverted U-form, as at 13,

having adimension to more or less'snugly fit within the U-form portion 3 of the housing sectlon.

A blade holder 14 is designed to fit snugly within and be frictionally held by the U- form end 13 of the bar section of the handle. i

This blade holder is, of course, formed in a manner to receive and securely hold a. razor blade 15 in order that the same may roject laterally of the bar section-of the andle.

In this connection, it is to be understood that the blade holder may be formed in any appropriate manner to cooperate with and hold the particular blade for which the I razor may be desi nod, and it is to be understood that the lade holder-here shown is merely a conventional illustration of any structure designe'dparticularly for holding a special type orwell known ty 'e of razor in the holder when desired.

Secured to and carried by the holder 14 is y replaced 'otally mounted in the respective ends of the tion, the guard is, of course, held by the side walls ofthe bar section in direct line with the blade and, therefore, acts as a complete protector for the edge of the blade.

- is too great.

It is apparent that a limited movement must be permitted the guard relative to the blade in order to permit a shaving operation of the blade and that the guard must also be permitted a limited movement relative to the blade when the bladeis being honed or sharpened. Experience has demonstrated, however, that if the movement permitted the guardrelative to the blade necessary forthe shaving operation is permitted the guard during the honing operation, there will be a tendency to round the edge of the blade due to the fact that the movement permitted the latter with respect to the hone or strop Therefore, the present invention makes provision for two distinct permissible move-' ments of the guard relative to the blade, one

when the razor is being used for shaving purposes and another when the razor blade is being honed or sharpened. Obviously,

when the guard is confined between the outer walls of the U-portiOn of the bar section 2,

the guard is held against practically any movement relative to the blade, and therefore to provide for the desired movements of the guard, the free'edges ofthe walls of the U-shaped portion of the bar section 2 are rovided with notches 19 and 20, the former eing of greater height than the latter.

The notches 19. which are, of course, disposed apart a distance. to simultaneously cooperate with the side bars 16 of the guard are of greater height vertically of the side bars of the U-portion 13 than are the notches 20. Therefore, when the blade holder-14 has been moved longitudinally of the bar section to arrange the side bars 16 of the guard in alignment with the notches 19, the cross-bar '17 of-the guard is permitted a nec-' essary play relative to the edge'of the blade as will permit a proper shaving operation of the blade without liability of cutting the face. When the blade holder has been moved, however, to a position to align the side bars 16' of the guard with the notches 20, a somewhat less play is pe'rmitted the andt cross-bar 17 of the guard relative to the edge of the razor blade. This latter play is such, however, as is suflicient to permit av sharpening or honing action of the blade without permitting such angular relationof tldile blade and hone as will tend to round the e ge.

The razor, when not in use, is arranged as shown in Figure 2 in which the bar section 2 is disposed wholly within the housing sec-- tion 1. 'In this position of the parts, the extended lips 4 of the housing section snugly embrace the guard and blade and prevent any relative movements of the parts and maintain the guard in position to hold the edge of the blade inaccessible for cutting.

When desired for use, the bar section is through the cooperation of the pivot pin 10 e slots 7. During this movement, the

extended end or bar portion 8 of, the handle section 2 bears against the upper wall of the housing section and prevents any pivotal movement of the bar section 2. When the pivot pin has reached the ends of the slots 7, the bar section 2 maybe turned into the position indicated in Figure 1. In this movement, the wedge-shaped end. 11 of the bar section 2 is forced betweenthe converging lips 4 of the housing section, thereby exerting a frictional resistance to the free pivotal movement of the handle parts and insuring that the razor will temporarily.remain in any pivotedposition in which it may be placed. 1 When in the operative position as illustrated in Figure 1, the bar end 8 of the handle section 2 serves as the usual finger bearing for the manipulation of the razor similar in all respects to-this detail in the old st-ylemazor.

The improved razor, therefore, is a safety razor which-in operative position may be manipulated and handled as an old style razor. The parts of the improved razor are collapsible. into compact form, in which form the guard for the blade is held in such 1 position as to absolutely prevent any possibility of cutting action by the blade. Furthermore, the razor, in addition to permitting a shaving operation, is designed to ermit a proper honing of the blade wit out change in parts on without removal of the blade from the holder or handle. "This function is gained through providing a means by which the guard'is permitted a less movement relative to the blade than when the parts are arranged for shaving, this capability of controlling the relative movement of the guard and blade being an important one as it adapts the razor for proper shaving functions and also controls the position all of the blade on the hone or strop to prevent any possibility; of rounding the blade during such operation.

It is to be further noted that the wedgmg cooperation between the housing section and bar section of'the handle insures that the parts will be retained in collapsedor housed relation against accidental opening and that when opened, the parts may be retained at desired angular relation without liability of slipping.

It is to be understood that if desired and as illustrated more particularly in Figure 9,

the blade 21 may be formed at its non-sharp-' therewith, said bar section being arrangedfor pivotal'movement relative to the housing section in'one'position of the parts, a

blade holder removably carried by the bar section, a guard carried by the blade holder,

and means on the bar section to cooperate with the guard to limit the play of the guard relative to the blade.

2. A safety razor comprising a housing section, a bar section slidably mounted therein, a blade holder slidably mounted in the bar section, a guard carried by the blade holder, and means on the bar section to limit the play of the guard relative to the blade and the holder to either of two predeter mined positions. I

3. A safety razor comprising'a housing section, a bar section slidably mounted therein, a blade holder slidably mounted in the bar section, a guard carried'by the blade holder, means on the bar section to limit the play of the "guard rclati've'to the blade and the holder to either of two predetermined to permit a limited to the blade when the bar section is in collapsed relation to the housing section.

4. A safety razor comprising a hollow" housing-section, a bar section mounted for sliding and pivotal movement relative to the housing. section, said bar. section having a U-shaped terminal portion to receive a blade holder, a blade holder slidable in sa1d ortion, and a guard carried by the b ade holder, the side walls of the hollow portion of the bar section being formed with notches play of the guard.

5. A safety razor comprising a hollow housing section, a bar section mounted for sliding and pivotal movement relative to the housing section, said bar section having a U- shaped terminal portion to receive a blade holder, a blade holder slidable in'said portion, and a guard carried by the blade holder, the side walls of the hollow portion of the bar section being formed with notches of different lengths to permit different limited plays of the guard.

6. A safety razor comprising a hollow housing section, a bar section mounted for sliding and pivotal movement relative to the housing section, said bar section having a U-shaped terminal portion to receive a blade holder, a blade holder slidable in said portion, a guard carried by the blade holder, the side walls of the hollow portion of the bar section being formed with notches of different lengths to permit different l mited plays of the guard, and depending lips on the housing section to. hold the guard in fixed relation to the blade holder when the bar section is within the housing section.

In testimony whereof I aflix my si nature.

' ERNEST L. EDGAR. L. 5.]

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