Патент USA US2410311код для вставки
Oct. 29, 1946. ‘2,410,311 w. STEINBACH ' SAFETY RAZOR AND BLADE MAGAZINE THEREFOR Filed Jan. 4, 1945. 2 Sheets-‘Sheet 1 INVENTOR 4/ 5/ ATTOIRNEYS Oct.- 29, 1946-: I w. STEINBACH ' 2,410,311 ' SAFETY RAZOR AND B‘LADEv MAGAZINE THEREFOR ' _ Filed Jan. 4, ‘1945 , \ 46 46 ' ' -___‘ . 43 v4/’ 2 Sheets-Sheet‘ 2 46’ 3/ 42 IJZ464/ 3’ II. .n" , ATTORNEYS Patented Oct. 29, 1946 2,410,311 UNITED STATES PATENT OFFICE 2,410,311 SAFETY RAZOR AND BLADE MAGAZINE THEREFOR Warner Steinbach, Maplewood, N. J. Application January 4, 1945, Serial No. 571,260 3 Claims. (CI. 30-40) 1 2 This invention relates to a magazine for dou ble-edge safety razor blades and means whereby blades to hold the rear of the cutting edges out of contact with the side walls of the magazine, and also provide a vertical guide rib along the inner face of the front wall extending within the blade slots to hold the forward ends of the cutting edges away from the side walls. As the forward guide must stop short of the discharge such a magazine can be mounted on the razor to inject a new blade while simultaneously ejecting a dull one. Magazines for double-edge blades have been proposed, but always, so far as I am aware, for use in connection with razors of spe cial construction which are unnecessarily com plicated and expensive or which cannot be used passage and so cannot act on the topmost blade at any time, and as the rear guides cannot func with the general run of three-hole or slotted 10 tion on the topmost blade while it is being dis blades obtainable on the market. My primary object is to simplify and improve such magazines nevertheless, capable of use with any standard blade in the time-honored manner. A further charged, I provide other means for insuring that the cutting-edges of the topmost blade do not strike the walls of the magazine either before or during discharge: a spring tongue extending up ward from the pressure plate passes through the slots near their forward ends and, bearing against the top of the magazine, serves to center the top object of my invention is to provide improved most blade and hold its forward cutting edges out ‘ and to provide a razor for use in connection therewith, which although modified to receive the magazine in blade injecting-ejecting position is, means for preventing contact between the mag of contact with the side walls of the magazine azine and the cutting edges of the blades, both at all times, and the slide is shaped to ?t snugly before and during the blade-discharging opera between the projections on the rear edge of the tion. Another object of my invention is to pro topmost blade. These devices serve to center the vide simple and effective means for locking the topmost blade at all. times—-before and during magazine in blade-feeding position on the razor discharge-and prevent any contact of the cut so that a new blade can be accurately and quick 25 ting edges with the magazine. ly fed into shaving position while its dull prede To mount my magazine on the razor I provide cessor is being ejected. tongues on the former engaging guideways on As the standard double-edge safety razor is the under face of the guard plate, and to insure proper alignment I provide a projection on the provided with a central threaded stud or rod de pending from its cap or outer clamping plate. and magazine which enters a corresponding recess in also with blade-locating pins or medial bar, like the cap and is locked in position byturning the wise depending from the cap, it is impossible to razor handle to separate the cap and the guard. feed a conventional blade into position between This lock places the discharge slot of the maga the cap and guard plate without a complete sepa zine in alignment with the slightly ?exed dull ration of the two. As this is not feasible the blade blade in the razor so that movement of the slide must be provided with a medial slot. slightly wider toward the razor feeds a new blade into shaving position while simultaneously ejecting the dull than the thickest stud. rod, pin or bar, and left open at one end so that it can be fed into shaving one. position, open end foremost, straddling ‘all ob I have illustrated and described certain pre structions-and likewise be ejected closed end 40 ferred embodiments of my invention in the ac foremost. I stack my open-slotted blades in a companying drawings. No doubt others also magazine with the open slots all facing the dis could be devised within its purview and these, too, charge end, and urge them upward against the are embraced within my claims. In these drawings: » top of the magazine by means of a spring-pressed plate. A slide movable in a longitudinal slot in Figure 1 is a front elevation of the razor and the top and provided with an external knob en magazine of my invention shown in blade-feeding gages the rear end of the topmost blade and. on relationship. . being moved forward, discharges it through a Figure 2 is a perspective view of the magazine passage de?ned by the upper edge of the front detached from the razor, 50 Wall of the magazine and the top. Figure 3 is a plan view of the razor and maga It is essential that the cutting edges of the blades never engage any part of the magazine zine shown in Figure 1, _ _ _ Figure 4 is a vertical section on an enlarged J or razor. To this end, I provide the rear corners scale taken along line 4--4 of Figure 3, ' of the magazine with vertical guide blocks coop Figure 5 is a horizontal section taken along ‘ erating with projections on the rear edges of the 55 1ine-5——'5 of Figure 1, looking ‘down, -' - 2,410,311 4 3 Figure 6 is a horizontal section taken along line 5—6 of Figure 1 looking up, Figure 7 is a bottom view of the magazine top or cover, - slide along the slot 4| serves to expel a blade, in a manner to be described presently. Supported upon the bottom of the magazine are four coil springs 44 which support a pressure plate 45 which, in turn, supports a stack of blades .46. These blades, as illustrated in Figures 5 and 17 are double-edge blades, each provided with a longitudinal slot 41 open at one end and closed at the other. The rear edge of each blade is Figure 8 is a top view of the pressure plate, Figure 9 is a vertical section through the plate taken along line 9—9 of Figure 8, Figure 10 is a top view of the guard plate, Figure '11 is an end view of the guard plate showing the guideways for the magazine tongues, 10 provided with two rearwardly extending projec tions 48. Extending upward from the plate 45 Figure 12 is a transverse section on a still fur is a spring tongue 49 which passes through the ther enlarged scale taken along line l2—l?; of Figure 4, Figure 13 is a similar section taken along line |3--|3 of Figure 4, Figure 14 is a transverse section on the same large scale taken along line |'-l—iil of Figure 3 and showing the condition of cap, guard and dull blade when the magazine is locked in block-feedl ing position, Figure 15 is a longitudinal section through the magazine taken along line |5—|5 of Figure 16, but on a smaller scale, similar to that of Figure 4, but showing a modi?ed form of blade-canton ing guide and also showing the slide toward the end of its blade-discharging movement, Figure 16 is a transverse section taken along line 15-h“: of Figure 15 and Figure 17 is a detail showing in perspective the relative positions of the new incoming blade and the dull outgoing one. slots 41 of the stacked blades and, pressing against the underface of the top 3| of the magazine, acts to center the blades, including the topmost one, particularly at their forward or open-slotted ends. The rear projections 48 on the blades engage the corner blocks 35, as illustrated in Figures 5 and 6, and the guide rib 36 extends into the blade slots, 20 and thus the blades are spaced from the side walls of the magazine and their cutting edges pro tected. The slide 152 is just wide enough to ?t within the projections 48 along the rear edge of each blade. Thus when the slide has been retracted to its rearmost position as shown in Figures 4, 5 and 6, it ?ts'between the projections 48 of the topmost blade, which is pressed against the top 33 by the pressure plate and is in alignment with 30 the slide. When the slide is moved to the left through manipulation of the knob 53, the top most blade is disengaged from the stack and moved forward through the discharge passage tional safety razor of the Gillette type, modi?ed 37, lower blades being held back by the forward as I shall describe presently and comprising a cap 2%, a guard plate 2| and a handle 22, the 35 Wall. This movement is facilitated by the pro vision of ribs 50 on the lower face of the top 3|. guard plate being permanently but rotatably During the discharge movement of the topmost mounted on the handle in the usual way. The blade, its rear end is centered with reference to cap is provided with the conventional blade-lo the side walls of the magazine by the action of cating pins '23, extending through holes 245. in the the slide 42 ?tting within the projections 48. guard plate, and with a central threaded stud Meanwhile, the forward end of the blade is cen 25 which enters a threaded socket 26 in the han tered by means of the spring tongue 49. When dle. The cap and guard plate are drawn to the end of the slot 41 reaches the tongue 49, the gether toclamp and ?ex a blade between them tongue is depressed to permit overriding by the by turning the handle clockwise with respect to blade and from this point on the blade must be the guard plate and the two clamping members centered by the slide itself, but this presents no are separated by turning the handle counter dif?culties because by this time most of the blade clockwise. . has left the magazine. The slot ?ll extends for In Figure 1 I have illustrated a magazine 2'! ward beyond the front wall 35 and thus enables mounted in blade-feeding position on the razor the slide to discharge a blade completely. When by means which I shall describe presently, but one blade has been discharged, the slide is re ?rst I shall describe the magazine itseli: and its turned to its initial position at the rear of the blade-feeding mechanism. magazine where it is held in readiness to dis The magazine proper comprises a casing hav charge another. ing abottom 29, top 3|, side walls 32, back wall I shall now describe the means for mounting ,33' and front wall 34. I have shown the top 3| and locking the magazine upon the razor. Guide provided with depending ?anges ?tting over the ways for the tongues 38 are formed at each end side and rear walls, but this is not important and of the guard plate 2! by cutting strips of metal other means for constructing the casing may be from the guard plate and bending them down employed. Within the magazine at its rear cor wardly and inwardly to form the angles 5|. ,ners, I provide a pair of vertical guide blocks This is a simple and inexpensive method of 35, and at the middle of the front wall 34 a forming guideways, although other means might vertical- guide rib 36 whose function it is to center be employed, or separate guideways mounted on the blades. A horizontal blade-discharge passage the underface of the guard plate. As shown 37, as deep as the thickness of a blade, is pro in Figures 2 and 14, the tongues 38 are laterally vided between the top edge of the front wall 34 tapered slightly to make a snug ?t between and the top 3|. Extending forwardly from the the horizontal ?anges of the angles 5| and the front wall 34 are a pair of tongues 33 adapted to lower arcuate face of the guide plate which, _ cooperate with guideways on the guard plate, and between them, de?ne the guideways. The maga extending forwardly from the top 3| is a pro jection 39, dovetail in cross section, which is 70 zine is now mounted on the razor, but not locked there. In order to lock the magazine in blade adapted to engage a correspondingly shaped re feeding position, I provide a recess 52 at each end cessin the cap of the razor to form a wedge of the cap 20, which recess is provided with up lock. Slidably mounted within a, longitudinal wardly ?aring side walls designed to receive the slotdl inv the top 3i is a slide 1%2 provided with an external knob 43. Forward movement of the 76 correspondingly shaped projection 39 from the In these drawings I have illustrated a conven 2,410,311 5 end of the magazine top, as illustrated best in Figure 14. When an old dull blade is to be ejected from the razor and replaced by a new sharp one, the cap and guard plate are moved toward each other by turning the handle to the right. There upon the magazine is mounted upon that end it nonre?llable. Thus the whole would con stitute a blade package to be discarded when emptied of its contents-the blades. Although the razor used with my magazine must be adapted to receive it, as shown and de scribed, nevertheless it is not so di?erent from the ordinary Gillette-type razor as not to be of the guard plate underlying the open-slotted usable in the regular way with regular blades. end of the dull blade by inserting the tongues 38 I claim: within the guideways and pressing the magazine 10 1. A magazine for holding a stack of blades home until its front wall 34 abuts against the each having an open-ended longitudinal slot and adjacent edge of the guide plate. With the parts having a blade discharge passage between its top in this position the projection 39 overlies one of and forward wall, means at the discharge end the recesses 52. In order to lock the magazine of the magazine for mounting it on the guard on the razor, the handle is then turned counter 15 plate of a safety razor, a projection forming part clockwise to separate the guard plate and cap, of a lock extending from the magazine at its thus ?rmly seating the projection 39 within the adjacent recess 52, and releasing the clamping pressure on the dull blade. discharge end, and means for discharging blades one by one. We now have the 2. Apparatus for feeding razor blades into shav~ dull blade only slightly ?exed between the spaced 20' ing position comprising a razor blade magazine cap and guard plate, as illustrated in Figures having a discharge passage, a safety razor having 14 and 17, and the parts are in readiness for the blade injecting-ejecting operation. Movement of the slide to the left discharges a sharp blade clamping members for a blade, means for mount ing the magazine on one of the clamping mem bers with its discharge passage facing the razor, from the magazine. The forward end of this 25 interlocking means on the magazine and the blade engages the adjacent end of the ?exed other clamping member and means for separat dull blade, as illustrated in Figure 17, and ejects the latter from the razor as the new blade takes ing the clamping member to lock the magazine in blade-feeding relation to the razor. 3. The combination of a double-edge safety its place. Now the handle is turned clockwise to clamp the new blade and ?ex it into shaving razor comprising guard plate and cap, a recess position. This releases the cam lock and permits in the cap, a guide on the guard plate, a maga withdrawal of the magazine. zine for holding a stack of blades, and having a In Figures 15 and 16, I have illustrated a modi blade discharge passage at one end, an extension ?ed form of blade-centering means. Instead of on the magazine cooperating with the guide on the ?xed guide rib 36 and the spring tongue 49 35 the guard plate to mount the magazine on the extending upwardly from the plate 45, I combine razor, a projection on the magazine at its dis the two and provide the inner face of the forward charge end extending into the correspondingly wall 34 with a spring-pressed guide 54 which nor~ shaped recess in the cap, means for discharging mally presses against the top of the magazine blades one by one, from the magazine and feed and centers all of the blades including the top 40 ing them between the guard plate and cap while most. Like the spring tongue 49, this guide 54, ejecting a dull blade from the razor, and means although normally pressing against the under for separating the guard plate and cap to lock surface of the top 3| of the magazine, may be the magazine on the razor with the discharge pas depressed to permit overriding by the blade being sage in alignment with the blade-receiving space discharged. 45 between guard plate and cap, and release the In actual practice I would construct my maga zine of plastic or some light cheap metal, mount the blade stack within it at the factory and make pressure on the dull blade. WARNER STEINBACH.