US1823976A - Safety razor - Google Patents

Description

Sept. 22, 1931. H. J. GAIISMAN 1,823,976

' SAFETY RAZOR Original Filed March 11, 1927 ATTORNEY substantially parallel with the handle, for

Patented Sept. 22, 1931 UNITED STATES PATENT OFFICE HENRY J. GAISMAN, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO

GILLETTE SAFETY RAZOR COMPANY,-0F BOSTON, MASSACHUSETTS, A CORPORATION OF DELAWARE SAFETY RAZOR Application filed March 11, 1927, Serial No. 174,458; Renewed November. 10, 1930.

The object of my invention is to permit the use in a safety razor of blades properly intended therefor and to prevent the use of blades not manufactured in accordance with the proper construction.

I-have illustrated myinvention embodied .inthe typeof safety razor in which a blade holder and-a handle are pivotally connected together in" such a way that the holder may extend transversely with respect to the axis of the handle for shaving and may extend atan angle to the first named position, such as insertion of'b'lades in the holder and their removal therefrom. g

In theparticular embodiment of my invention illustrated I provide movable projections on the blade holder operative by the handle and so positioned when the blade holder and the handle are in blade receiving .position as not to obstruct the insertion of a blade in the holder, the parts being so arranged that when the blade holder and handle are adjusted to shaving position the handle will cause the projections to enter apertures or'impressionsin the blade that are in register with said projections for retaining the blade in the holder. By preference I provide means for causing the aforesaid projections to move laterally for pushing the blade edge into shaving relation to the guard when the projections are in proper apertures 01' impressions in the blade so that a blade not having such proper apertures or impressions will not be retained in shaving relation to the guard. v

A feature of my invention is that if a blade not authorized by the manufacturer of my improved safety razor and not having aper-' tures or impressions to receive the aforesaid projections be inserted in the blade holder the handle and blade holder cannot be located in shaving position, as such blade will obstruct the projections 1 and prevent the blade holder and thehandle from being prop-' erly located'respecting each other for shaving, and whereby if an unauthorized blade not having the proper aperturesor impressions to receive the aforesaid projections be inserted in the holder the said projections will not push the blade to and retain its cutting edge in proper shaving relation to the guard.

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

Reference is to be had to the accompanying drawings forming a part hereof, wherein "trating the parts in position for insertion of a blade in the blade holder;

Fig. 6 is a'section on line 6, 6, in Fig. 5;

Fig.- 7 is a partly sectional plan view Fig. 8 is a perspective detail illustrating the blade engaging projections, and

Fig. 9 is a-face view illustrating the blade and projections cooperative therewith.

Similar numerals of-reference indicate corresponding parts in the several views.

A blade holder is indicated at 1, shown pivotally connected at 2'with the reduced portion 3a of a handle 3. The blade holder is shown provided with a relatively flat seat 111 to receive a blade 4 with the blade resting on the seat for shaving purposes opposed by a spring-acting retaining member 5 carried by the holder member 1 for keeping the cutting edge of the blade in shaving relation with respect to the guard 16 seat 1a to slidablv receive the blade therebetween and detachably retain the blade upon its seat. At Gare movable projections carried by the blade holder adapted to en- 'ter apertures or impressions 4a in the blade toretain the latter in shaving relation .to

the guard. The projections 6 are shown extending laterally from a plate 7 that is located beneath the seat 1a of the blade holder in opposition to the adjacent end of the handle tobe operated 'thereby, the projections 6 bein slidably fitted within openings 10 in the lade holder that communicate with the blade seat, (Fig. 2), whereby said projections are guided and plate 7 is retained in operative position. The blade holder is recessed on one side providing a wall at 1, on the side opposite the seat 1a, along which wall the plate '7 bears. The plate 7 is shown provided with outwardly extending spring-like fingers or tongues 70 that bear against the wall 1 tending normally to force the late in the direction away from said wall an toward the adjacent portion of the handle. When the parts are in the position shown in Fig.5 the projection 6 will be withdrawn fromthe plane of seat 1a, or substantially so, to permit the blade to slide along said seat, the sides 3?; of the handle being of such width relatively to the location of the pivot 2 that the plate 7 may fit between the wall 1' and a side 3?) of the handle when the blade holder is substantially parallel with the handle, as in Fig. 5. The outer end 30 of the handle is shown curved or rounded and extends sufiiciently far beyond the pivot 2 as to engage the'plate 7 so that when the blade holder is in the shaving position shown in Fig. 1 said end 30 of the handle will bear against plate 7 to push it toward or against wall 1 and thereby to push the ro ections 6 through apertures 4a of the b ade. When the parts are in. the position shown in Figs. 1 and 2 the blade edge will be in shaving position respecting the guard. To remove a blade from the holder the latter and the handle will be placed substantially in the position shown in Fig. 5, which will permit the springs 7 a to push plate 7 toward the handle to withdraw the projections 6 from the apertures 4a of the blade.

The apertures or impressions 4a, of the blade are shown in Fig. 9 arranged in the nature of a designation, such as a trademark, word or symbol, to desi nate the manufacture of the blades. Suc 1 apertures 4a and the projections 6 are so related that said projections will only pass through roper designations in the blade. If a blae'not having such apertures be inserted in the blade holder the latter and the handle cannot be adjusted to shaving position, (Fig. 1), because when an attempt is made to turn *the blade holder from the position shown in Fig. 5 to the position shown in Fig.' 1 the projections 6 will bear against the metal of the blade and thereby'will be obstructed, since the plate 7 will 0 pose the end portion 30 of the handle an prevent the same from being turned to shaving position.

- As a further means to prevent the use in the razor of a blade not having apertures or impressions, such as 40, positioned to properly receive the projections 6, I make gage lug 7 with the parts in t the plate 7 laterally slidable along wall' 1' beneath seat 1a and provide'means cooperative with the handle to cause the plate 7 to be moved from the position shown in Fi 4 to the position shown in Fig. 2 to pusi only a proper blade edge into shaving relation to the guard and to retain it in such position. One or more springs 8 are secured at 9 in recesses 10 in holder member 1 and enter apertures 11 in plate 7, (Fig. 7), said spring normally tending to push plate 7 away from guard 11), as in the position shown in Fig. 4. The plate 7 is provided with a lug 7 dependin in front of the adj acent end portion 3a 0% the handle to be endle, substantially at one side of pivot 2, is provided with a recess 3 adapted to receive the lug 7 when the parts are in the ositions shown in Figs. 3, 4, 5 and 6, wherey the springs 8 may push the plate 7 rearwardly respecting the guard, and the surface portion 3" of the handle is adapted-to enle position shownin Figs. 1 and 2, to push plate 7 with its projections 6 in the direction ofthe guard. The portion 3d of the handle, at the edge of the recess 3, is beveled or inclined in such a way as to ride against the lug 7 when the parts 1 and 3 are turned from the position shown in Fig. 5 to the position shown in Fig. 1 to permit theadjacent end of the handle to operate against the lug.

When a blade is to be inserted inthe blade holder the arts will be placed in the position shown in ig. 5 so that the springs 7a will cause movement of the plate 7 to withdraw the projections 6 from interfering with the sliding of a blade along seat 1a. The blade will be pushed along the seat from one end toward the other, with the heel of the blade guided by the longitudinal stop or wall 1" of the blade holder, (Fig. 4), so that the apertures 4a of the blade will be brought to rest in register with the projectionsli, at which time the lug 7 of plate 7 will register with the recess 3 of the handle and the springs 8 will retain the plate 7 pressed rearwardly. When the blade holder is rotated upon the pivot 2 the edge portion 30 of the handle will engage plate 7 and push it toward wall 1 thereby causing the projections 6 to enter the apertures 4a of the blade, (Fig. 3), and further rotation of the blade holderrespecting the handle wil cause the inclined portion 3d to engage lug 7' and cause the plate 7 to be pushed toward the guard, thereby simultaneously moving the blade edgewise toward the guard to present its cutting edge in shaving relation thereto, with the parts as shown in Figs. 1 and 2. So long as the parts are in the last named position the bladewill be retained in shavin relation to the guard, and with the parts 1n such position the blade cannot be removed from or a new blade inserted in the holder because of the location of the projections 6 beyond the seat 1a. In case a blade not having apertures, such as 4a, be inserted inthe holder it cannot be retained in shaving position'nor can the blade holder be adjusted to such position because the projections 6 would engage such blade, as before stated, and a blade not having proper designation apertures 4a to receive the projections 6 would not I e presented and retained by-said projections in proper relation to the guard.

The blades may be inserted in the blade holder in any suitable way. I have illus trated the handle 3- as arranged to retain a blade magazine 12 containing a stack of blades 4 in such position that said blades may be successively pushed into the blade holder by means of an ejector 13 slidable in the magazine. The magazine is shown in box-like form having an inner chamber or space 12a for the blades'to lie flatwise, the

, magazine having a cover 14 which is removable to admit the blades into the magazine. Ihave shown the side walls of the magazine as provided with grooves 12?; in which the cover slides, (Fig. 6). Between the cover and the blades a spring 15 normally bears against the blades to keepthem in stacked relation. By pulling out the cover the blades 1 and the spring maybe placed in the magazine and the cover may be slid back toretain the blades. At one end the magazine has an opening or slot at 12 to .permitlengthwise ejection of the endmost blade, the latter slidably resting against the outer wall 12 of the magazine. The ejector 13 is slidable along-the wall 12". The inner end of the ejector is maintained in line with the endmost blade of the stack, opposite the spring 15, and in register with the opening 12, whereby when the ejector is pushed inwardly a blade will be ejected from the magazine, (Fig. 5). The ejector is shown provided with a stop 13, which may be punched out of the metal of the ejector, slidable in slot 120 in wall 12" of the magazine, adapted to engage end portions of the wall to limit the motion of the ejector and to prevent it from being pulled from the magazine and from pushing the blade too far into the blade holder. The magazine is adapted to be detachably supported upon the andle 3 so as to be located in juxtaposition to the end of the blade holder 1 for insertion of blades from the magazine into .said holder. For such purpose the handle is shown provided with longitudinal grooves 36 slidably receiving spaced projections or ribs 16 on spaced projecting walls116' of the magazine that receive the handle therebetween, and a screw 17 carried by one of said walls is adapted to enga e the handle' for operatively retaining t e magazine. When the magazine -is assembled on the handle and the blade holder is turned to a along the wall 1" blade holder is only the apertures handle, as indicated in Fig. 5, the ejector may be pushed inwardly to push the lowermost blade from the magazine into the blade holder, with the heel of the blade guided blade in the holder with the apertures 4a in proper relation to the projections 6, said blade at such time ejecting a blade from the holder. The magazine may be removed from the handlefor shaving purposes. The construction of the magazine illustrated is substantially the same as that set forth in my application filed January 15, 1927, Serial N 0. 161,302.

An advantage of my invention is that the adapted and intended for use with blades having the apertures or impressions 4a, which may be a designation such as a trade-mark or other symbol denoting the original manufacturer of the safety razor and the blades, so that blades not having such apertures or designation apertures cannot be fitted in proper shaving relation to the guard, whereby to protect the original manufacturer from the use in his razors of unauthorized blades manufactured by others. My invention is not limited to thedetails ofconstruction set forth, as the same may be varied, within the scope of the appended claims, without departing from the spirit of my invention.

Having now described my invention what I claim is 1. A safety razor comprising a blade holdor having a guard,a handle pivotally connected therewith,

one or more projections of the holder to locate the. a

adapted to enter apertures in a blade, and

means movably supporting the projections, the handle having a portion to operate said means for causing the projections to enter in the blade when the handle and the blade holder are moved from one position to another and for causing withdrawal of the projections from the blade when the handle and blade holder are in a different position.

2. A safety razor as set forth in claim 1, provided with means operative by the handle for causing the projections tomove toward the guard during relative movement between the blade holder and the handle for correspondingly moving the blade.

3. A safety razor comprising a blade holder having a guard, a handle pivotally connected therewith, one or more projections carried by the blade holder adapted to enter apertures in a blade, and means movably supporting the projections the handle having a portion to operate said means for causing the projections to enter the apertures in the blade when the handle and the blade holder are moved from one position to another and for causing withdrawal of the projections from the blade when the handle and blade holder are in a difierent position.

4. A safety razor as set forth in claim 3,

. provided with means operative by the handle for causing the projections to move toward the guard during relative movement between the blade holder and the handle for correspondingly moving the blade.

5. A safety razor comprising a blade holdor having a guard and a seat for a blade, a handleinovably connected with the holder for positioning at an angle to the blade holder, one or more projections operative relatively to the seat to enter apertures in l a blade upon the seat, and means movably supporting the projections and operative by the movement of the handle and the blade holder angularly with respect one to another to cause the pro ections to enter the apertures intne blade when the handle and the blade holder are in shaving relation.

(5. A safety razor as set forth in claim 5, in which the means movably supporting the :rojections include a plate carrying the projections and located in position to be operated by the handle for causing the projections to enter the apertures in the blade.

7. A safety razor as set forth in claim 5, in which the means movably supporting the projections include a plate carrying the proprojections include a plate carrying the projections and located in position to be operated by the handle for causing the projections to enter the apertures in the blade, and spring means cooperative with the plate and the'blade holder for causing movement of the projections away from the blade seat when the blade holder and handle are out of shaving relation.

*9. A safety razor comprising a blade holder having a guard and a seat for a blade, a

handle movably connected with the holder, one or more projections separatefrom the seat adapted to enter apertures in the blade,

a plate movably supporting the projections and located between the blade holder and the handle to be operated by the latter, spring means cooperative between the holder and the plate tending normally to move the plate the guard, andmeans cooperative between and the projections in a direction away from the handle and the plate for moving the latter and the projections toward the guard when the blade holder is moved toward shaving position relatively to the handle.

- v in the blade and for in 10. A safety razor as set in 9, in which the means cooperative between the handle and the plate'for moving the latter include a In upon the plate cooperative with the handle or moving the plate and the rojections toward the guard, the handle aving a recess adapted to receive the handle is out of shaving relation to the blade holder to permit the springs to move the plate and the projections in a direction away from the guard. I

11. A safety razor comprising holder havin a guard and ablade seat, and provided wit openings communicatin with said seat, a handle movably connecte with the holder, a plate laterally movable provided with one .or more rojectionsoperative in said openin and apted to enter apertures in a bla e on the seat, said'pl'ate'having means cooperative with the handle for moving'the late and the projections toward the guard w en the blade holder and handle are adjusted to shaving relation.

12. A safety razor as set forth in claim 11, in which the blade holder is provided'with spring means cooperative with the plate for moving the latter and the projections in a direction away from the guard when the blade holder and handle are out of shaving relation.

13. A safety razor comprising a blade holder having a guard and a blade seat, a handle movably connected with the holder, a

the lug when.

a blade plate located adjacent an end of the handle and provided with one or more projections to enter apertures in a blade on the seat, and spring means carried by the plate coo erative with the holder normally pressing t e plate toward the handle, the handle having means to cooperate with the plate to retain the latter pressed in the directionof the blade" seat to retain the projections in the apertures of the blade when the blade holder and handle are in shaving relation.

14. A safety razor as set-forth in claim 13, provided with means operative between the handle and the plate to causethe late with the projections to move toward an from the guard in different positions of the blade holder and handle relative to one another.

15. A safety razor, including a blade seat adapted to receive a blade and provided with a guard edge, blade positioning studsmovable through said seat substantiall at right angles to the blade supporting sur ace thereofand laterally relative to said blade supporting surface toward and away from said guard edge, said studs being adapted to enter positioning apertures in a blade and being normally within said seat to permit mountfor causing said studs rtures face of said seat and therelg enter ape or causing said all) studs to move laterally in relation to said blade supporting surface and thereby shiftirg the blade on said seat toward said guard e ge.

16. A safety razor acocrding to claim 15, comprising means for normally keeping said positioning studs within said seat and in their farthest position from said guard edge.

17. A safety razor, including a blade sea-t adapted to receive a blade and provided With a guard edge, blade positioning studs adapted to move laterally in relation to said guard edge, said studs being movable toward and from the seat to enter positioning apertures in a blade, and means movable in relation to said seatfor causing said studs to move toward said guard edge whereby the cutting edge of the blade is shifted to shaving p0- sition.

18. A safety razor according to claim 17,

comprising means for normally retaining said positioning studs in their farthest position from said guard edge.

' HENRY J. GA'ISMAN.

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