US 2441777 A
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Description (OCR text may contain errors)
May 18, 1948.
N. TESTi 2,441,777
RECEIVER FOR USED BLADES Filed April 20, 1945 II'IIA'IIII I z Patented May 18, 194$ Ni'chola's Testi', Boston; Mass assignoi' to Gillette" Safety Razor'Compa-ny, Boston; Mass; acorporation of Delaware- Application-Annie); 1945;;Seria-l- No; 589,283.:
This invention consists. ina novel re'ceiver' for used safety razor blades andia. newconibination' of blade magazine and receiver.
The problem of disposing of"us'edisafetyrazor' blades has always beena; troublesome. one and built-in receivers are now available in som'e'locaftions where the user may deposit used blades by hand; The public is now beingfoffered a type of safety razor and'blade magazineso constructed and arranged that the usedbl'ade is mechanically removed from the saie'ty razor. Handling'of used blades is thus "reducedito the stepsof" taking the" usedblade from some'sort of amechanical grip: per which has 'remov'ed'it from thei razor and. then disposing'of the blade .as has beenfdone' heretofore. The object of thepresent invention is toprovide a containertowhi'chth'e"user. may present a usedblade'while still held'lby a. me
' chanicalgripping device, or by a gripping'part' of a magazine which has withdrawnjthe'blade' from the safety razor, and which will then take control of the used blade. without requiring the] usereven to touch the blade.
Going more into detail, the receiver of invention is constructed .and'arrangedflto co-Op'erate with a magazine havingflspringagripping fingers for engaging a usedblade'in the safety razor, withdrawing the blade from'the razor and presenting it to the ,user for disposal. 'Ih'ebladegripping instrumentaliti'es are resilient or spring.- controlled and so shaped as ,to iinp'artan impulse oftranslation to'the used blade at the instant of its disengagement from the gripping device. The receiver of mypinvention comprises. an'encldsure of suitable size, having an' inlet slot and an in: ternal blade engaging-projection arrangedto retain a perforated blade when once. it has been inse'rted through'the slot. Having presented' one end of the blade through" the inlet .s-l'ot"without removing it from the gripping device, the blade. is hooked "against withdrawal and held positively. while the gripping device is retracted; The. used which leads the blade, downwardlygdep'ositing it. in stacked formation with other, braces. similarly" received; Thisl.feature of construction contributes to the provision" offalreceivei" of -,substantial' capacity sincev by. stacking th'eiused Lbladesfthe'y.
. are arranged in the. mannerimosteconomicalfof' space.
These and 'otherieatures "of. the invention will be best undrsto0d andapprciated, fromthelfol icwmg, description of." a preferred; embodiment thereof, selected; for purposesv .of ."i-llustration and shown the. accompanying drawings.- in which:
Fig. 1 is a view"in perspective. of thereceiver showinga blade being; presented thereto. byJth'e' gripping. device oifa blade magazine.
Fig; 2.;isia-rr'a'gmentamv1ew in perspective of" the gripping'Ydevicefshowingone end ioffa made; and" Fig. 3; is..a View. in longitudinal section" corresponding, to Fig. 1.
The receiver may'.b.e.construct ed of wood or. Ii'ghtimetal ormol'ded. resinous material a'n'dfas. herein .sh'own, omprises. two parts, .a' mainirec tangular. body "po tion" I li having Ia.- flangedjba'se l li'aIrdIa. separate bottom .I 2; which is. designed-- tobe. sprung ,or I forced; intoundercut] grooves.
blade is thus drawn 'frictionallyout of the'grip: I
formed inthe'fianges of the base H. The body lflvl'includes .a' fiat cover I3 'and in its front: wall, just beneath the cover, is formed'a. horizontal inlet slot i l of -suiiicient width to receive a used blade withv clearance.
The. basa 2 is provided .withan .upwardlyJ'prm jectinggplate" l5} having an inwardly. and upwardly sloping upper edge which terminates in a. projecting .hook' I61 standing just below the inner face of the cover I2; opposite to the. inlet slfot' ,Mf'and atfsubstantiall y the same, level. Atv its base: the projectih'g plate 15f is substantially longer thanthe' width ofthe blade slot and being herein shown as approximately the full length of the -blade-sloti ltsiorward' edge is substantially vertical while its rear-'edge slopjes downwardly and -rearward-ly 'fromthehook"! 65- A slotted blade presented endwisethroughthe-inlet slotlt='and--- pushed iniuntil the endof its slot registerswith the thoolct6 zwilli ba giiided" inwardly byxthepteaZr sloping edge of the. plate 1| 5- as; therblade drops: by gravity inside the jreceiver and all" blades :so presented are held. stackedcin vertically. superaposed relation-.- by thee-plate.- [5;
The receiverrhereinrishown is adapted o e double-edged blades of commercial type. As shown in Fig. 2, each of these blades I1 is provided with a longitudinal medial slot I8, having local enlargements of various contours. The blade also has reentrant corner notches forming elongated unsharpened end portions [9 at both ends of the blade. The plate I5 is of such width and length as to receive with clearance the slot I8 of these blades 11.
The receiver herein described may be employed advantageously in connection with any mechanical blade-gripping device; for example, with that of the blade magazine of my prior Letters Patent No. 2,397,890, dated April 2, 1946, and when so employed the blade is shot or snatched into the receiver in an unexpected manner. zine includes in its organization an outer rectan- The magagular casing upon which is movably mounted a feed slide 2i carrying a double-ended bladegripping device. This is formed a spring sheet metal or other resilient material and comprises at each side of the feed slide 2| a downturned centrally disposed finger 22, and upturned fingers 23.
user may, of course remove the used blade from' the fingers 22-43 and place it by hand in the receiver. If, however, the user presents the magazine to the receiver in the condition shown in Fig. 3, he will have no occasion at all to touch the'blade with his fingers and so may completely avoid danger of cutting himself. The blade ll enters the inlet slot, its end passes over the hook l5 and it is positively retained against being retracted. If now the magazine is retracted, the fingers 2223 are frictionally withdrawn from contact with the blade i1 and, as a last step of this withdrawal, the central finger 22 will snap upwardly and the two .side fingers 23 will snap downwardly, theresult'is to give the blade sharp forward impulse. This causes the blade apparently to leap inwardly into the receiver where it immediately settles itself upon the plate [5 and, is guided inwardly into alignment with the stack of blades being built up in stacked formation upon the plate It. The removal of the blade in this manner from the gripping fingers of the magazine completely frees the magazine leaving the used blade safely contained out of harms way.
It will be understood that the outer ends of the blade-gripping fingers 22 and 23 are beveled or curved in opposite directions at their extreme ends and that movement of the blade into the receiver is caused by the reaction of the curved or beveled surfaces of these fingers against the rear edge of the end portion [9 of the blade at the instantof disengagement. When the blade is inserted through the inlet slot [4, its end portion rides upwardly upon the rearwardly and upwardly sloping'edge of the plate I5. It is confined in this movement by the inner surface of the cover l3 and in this sense the inner face of the cover and the upper edge of the plate l5 constitutes converging guide surfaces which control the movement of the entering blade until the hook 76 I6 passes into the slot l8 of the blade. The blade is now positively held against retraction so that the magazine may be removed, leaving the blade where it is. When the gripping fingers 22 and 23 finally s-lip'off the rear edge of the blade, the latter leaps forwardly in the manner already explained, passing entirely through the inlet slot [4, and when this occurs the blade falls to the bottom of the receiver, being guided inwardly and downwardly in this movement by the inclined inner edge of the plate l5 and being prevented by the plate from twisting. A blade I! is indicated in dotted lines in the position it occupies when it has just cleared the inlet slot l4. Other blades are shown in stacked formation to the base of the plate l5.
Having thus disclosed my invention and described in detail an illustrative embodiment thereof, lclaimas new and desire to secure by Letters Patent:
1. A receiver for used blades, comprising a boxlikeenclosure having a, fiat top and a vertical wallwith a horizontal blade inlet slot in its upper portion, and a blade-engaging plate of substantial length disposed transversely to the slot, located within the enclosure having a hooked and standing opposite the inlet slot and adjacent to the top of the enclosure.
2. A receiver for used blades, comprising a boxlike enclosure having a flat top and a Vertical wall with a transverse blade inlet slot adjacent the top of the vertical wall, a bottom detachably retained in the enclosure, and an upstanding plate secured to the media-l part of said bottom and extending in edgewise relation into proximity to said slot and having a hooked end directed away from the slot, whereby a slotted blade inserted endwise through the slot is empaled upon said upstanding plate and prevented from twisting thereby.
3. A receiver for used blades, comprising a boxlike enclosure having a fiattop and a vertical wall with a transverse blade inlet slot therein, a bottom detachably retained in the enclosure, and an upstanding plate secured to said bottom and having a top edge extending inwardly and upwardly with respect to the inlet slot and cooperating with the top of the enclosure to guide a blade into empaling position when the blade is inserted through the slot, the said edge terminating at its inner end in a retaining hook.
4. A receiver for used slotted blades, comprising an enclosure having a transverse inlet slot, and a blade-engaging plate located within the enclosure and having an upper edge inclined inwardly and upwardly with reference to said inlet slot converging toward the top of the enclosure and constituting therewith converging guiding surfaces for controlling the path of a blade inserted through the inlet slot.
5. A receiver for used blades, comprising a rectangular enclosure, having a fiat top and an upright wall with a transverse blade inlet slot in its upper portion, and an upwardly extending blade-entering projection located within the enclosure and having a hooked end at substantially the same level as the inlet slot which is directed away from the slot and adjacent to the top of the enclosure.
6. A receiver for used razor blades of the slotted type, comprising an enclosure having an upright wall with an inlet opening near its upper edge, and a blade-engaging device projecting upwardly from the bottom of the enclosure and terminate ing in a hooked end adjacent to its inlet opening in position to engage and positively retain each 5 6 successive blade presented endwise through said UNITED STATES PATENTS opening, and having an inwardly and downwardly sloping edge acting to guide the blade inwardly gig 2 3 P g and position it parallel to the bottom in the re- 2339480 Hollis Jan 1944 ceiver, said hooked end and sloping edge being 5 directed away from the slot. FOREIGN PATENTS NICHOLAS TESTI' Number Country Date 533,880 Germany Sept. 19, 1931 REFERENCES CITED 767,774 France May 7, 1934 The following references are of record in the 10 file of this patent: