US2404141A - Razor blade holder - Google Patents

Description

July 15, 1946.

RAZOR BLADE HOLDER Filed Dec. 11, 1943 Edy-'1 J. NELSON 2,404,141

part of the spring urged pin may Patented July 16, 1946 e Jennings Nelson; St. Paul, Minn. Application December 11, 1943, Serial No. 513,899

My invention relates to an improvement in scraper blade holders, wherein it is desired to provide a novel and effective means of holding a razor blade for scraping purposes.

The object of my invention lies in the provi-r sion of a scraper blade holder supporting a razor blade so that it may retract or project'from its holder. In retracted position the scraper blade edge is held in protected position. In projected posi-tion the razor blade is in readiness for Vfull operation for its designed purpose. i

A feature of the present invention lies inthe provision of a novel means for holding the razor blade in selected position. This means comprises a pin or knob which is secured to the reinforcing plate to which the razor blade is secured, and which extends through a slot in the hollow enclosure in which the razor blade and reinforcing plate are slidably positioned. This pin or knob is engageable in spaced enlargements in the slot sov that the blade may be held in adjusted position.

A further feature of the present invention lies in the simplicity of assembly of the apparatus The razor blade is removably secured to its slidable reinforcing member and a spring pin device 15 Claims. (C1. 30-162) sition my reinforcing plate structure is arranged is also attached to this reinforcing plate structure.

The razor blade and its .reinforcing plate may then be inserted into the hollow body of the holder, and is mounted therein for retractable movement.

A feature of the fact that lthe portion of the hollow enclosure adpresent invention lies in the t jacent the slot in which the adjustment pin is'` engaged is ofi-set ontoa, plate parallel the adjacent surfaces of the enclosure., Accordingly a lie interiorly of the slot edges to hold the `pin or knob in proper relation to the reinforcing plate.

A feature of one form of myvinvention lies in` the provision of a slot at one side edge of the holder through which a blade may be inserted or rejected. Accordingly blades maybe changed whenvfound necessary or desirable without removing the supporting reinforcing member from its enclosure. a

A further feature of my invention lies in the fact that the holder may be such as to support a razor blade of the double edge type or of the single edged type. The reinforcing plate is reversibly positioned in its enclosure and is removable therefrom, .tionto the holder av single edged blade is lsupported for slidable movement receded into or projecting `from the enclosure. In reversed ypo- When in one position in rela-v ses to support a blade ofthe doubleedged type, either receded into or projecting from the enclosure. Thus my holder is useable with blades of either of these types.

These and other objects and novel features of my invention will be more clearly and fully set forthin the following specification and claims.

In the drawing forming a part of my speciiication:

Figure 1 is a top holder, a portion to show the construction thereof.

Figure 2 is a longitudinal section through the holder illustrated in Figure 1, lthe position of the section being indicated bywthe line 2 2 ofV Figure 1.

Figure 3 is a cross-sectional view through the holder, the position of the section being indicated by the line 3 3 of Figure 1.

Figure 4 is a cross-sectional view through the plan view of my razor blade handle portion of the tool, the position of the section being indicated by the line 4 4 of Figure 1. I

Figure 5 is a top plan View of a modified form of holder construction shownholding a double edged blade in retracted position.

Figure 6 is a the double edged blade in projected position,V

Figure 7 is a view similar to Figures 5 and 6 showing the holder clamping a single edged type razor blade in projected position. Y

Figure 8 is a sectional view through the holder,

the position of the section being indicated bythe y line 8 8 of Figure 5.

line 9 9 of Figure 6.

Figure 10 is a sectional view through the hold-eri position of the section beshown in Figure 7,the ing indicated by the une in ln of Figure 7( The homer A, illustrated 4 of the drawing, comprises of which has been broken away view similar to Figure 5 showing in Figures 1l through Y opposed n panel I2 extends rearwardlyv beyond the remaining panels and is provided with handle, lthis closure lplate 2'3 vis thus .held in portions 3 I ,i of clamping Vplates 33` and movement-through the 3 a central bulge I'I which extends into the integral handle portion ll. The handle II is provided with oppositely positioned side walls I9 and 20 and with a down-turned end ange 2| forming a reinforcement for the handle and also providing a channel-shaped hollow within the handle in which extra rrazor blades may be kept.

A tongue 22 is bent from the material forming the handle, at substantially the longitudinal center of the. handle, asbest illustrated in FigT ure 2 of the drawing. A closure plate 23 is shaped to fit between the side walls I9 and 2D of the plate being, provided with tongue 2A which extends beand the under-surface of an upwardly curved tween the tongue 22 the handle body I I. 26 are provided on the closure plate 23, which fit within the side wall flanges 23 and I9, respectively, of the handle I I, as illustrated in Figure 4 of the drawing. spaced apertures 2l. are providdin the side wall flangesV I9 andv 20, andraised knobs 29 on the flanges `25v and 25 engage in these apertures 2l under springtension. The closure place under spring tension `and may support a series of extra razor blades, illustrated in general bylthe'numeral B, Contained Vwithin the h llow body of the handle ||,"','V j.

Extending longitudinallyof the head I5, I provide in the upper panel I2 a slot 3). Portions 3l on 'opposite sidesof the Vslot 3i) "are cir-set into vspaced. parallel relationwith the remainder et Opposed side ang'es 25 and the upper panel I2 of the Yhead l5. The-offset Y l are connected by olf-'sets tothe remainder of the surface'ofthe panel-I2.

- The razor bladevreinforcing comprises a pair 34, whichr are spot welded, Aor otherwise connected together. Spacing flanges and 33 are provided on the rear edgegof these plates 33 and 34, respectively. iso as -to hold the plates in proper relation to the head Ill. The plates 33 and 3% areprovided'wi'th oiif- setv portions 31 and 39 which terminatein clamping lips 40 and 4I, respectively. The ofi-set portions 3lY and 33 are spread apart to receive the reinforcing edge 42 on the blade 32 of aasingle edged razor'blade C.l The clamping lips 43 and 4I Iengage the blade 43 *outwardlyV of the reinforcing member '32 embracing the edge 'of the blade `43 opposite the cutting edge thereof. A finger- 44 is bent up fromAv about the center of the upper plate 33 and, extends upwardly at Vsubstanti`ally"right angles thereto. A conical 'spiral sifri'rigl 45 encircles this nger 44 and isL secured at its small diameter endj of thevs'pring 45 is'resiliently held Within the' circular recess 45 within the circular flange l of the yadjusting button 43. The iiange 41' is varrang-edV to ride beneath the'oi-setfportions of thehead I-Il adjacent the s'lot '30, this flange '4l retainingv the adjustment pinY 49 fromV loutvvfard sloten.' v Y /A-'c'ircular shoulder :5'31is provided adjacent the shoulderl either? of a pair along the siot iatale-ny acjustedrpesinon: f

end to the ringer Yadjacent the'rsurface "of the platev'33. The large diameter 53 being engageable in of circular enlargements 5I 'and' `52Lin`V the. slet 30. When the adjustment pin 45 isfin' registry Witheither The pin 48 is provided with a hollo'w cylindrical shank 53 and a head 54 at the upper extremity thereof. The shank 53 is of proper interior diameter to accommodate the upper end of the iinger 44. This shank 53 is also of proper outside diameter to slide longitudinally within the slot 30. Thus when the pin 49 is depressed, compressing the spring 45, the pin may slide from' one extreme position to the other.

, In order to prevent the razor blade and its reinforcing plates 33 and 34 from sliding out of the once the holder provide a finger 55 which is .preferably broken upwardly from the bottom plate I6 into the longitudinal slot 56 in the plates 33 and 34. This linger 55 is formed in the lower plate I3 during the formation of the holder, but remains ccplanar with the plate i5 until the razor blade reinforcing plates 33 and 34 are engaged within the headll.y Through the use of a'y suitableinstrument the finger 55is then broken upwardly into* the slot 55, thusA limiting the slidable movement of the razor blade and Y.its reinforcing plates and holding the reinforcing plates assembled within the'head I0. n

As best illustrated in'Figures l and 3 of the drawing', a slot 51 i's provided in the'side edge I3 of the'head Ill, extending toward the rear of the head some distance from the front edge thereof. This slot 51 is provided to permit inser tion `and withdrawal of therazor blade C from between the plates 33 and'34.. .When the'razor vblade is in the projected'vposition illustrated in vpartially removed position in dotted outlineV in Figure 1 of the drawing. When 4the blade is in retracted position, i-t lis held fromlateral slidable movement by the side edge- I3 of the head IIJ.

From the foregoing/description it will be obvious that a `single edgerazor blade may .be .inserted between or withdrawn from between the reinforcing plates 33 and 34 at any time the blade is in .extended position. When inthe retracted position described the blade isheld tightly from movement by engagementof the circular shoulder 50 vvitlfi the enlargement 52 `in theslot 32..

When.' moving longitudinally from :one eXtrem-e position to the other button orv lpin 4331s fde-r pressed until the shoulder 59 vis positioned fbeneath the off-set portions blade and its reinforcing plates may beY moved rearwardly to retract the-'blade until the-shoulder 50 engages inthe circular enlargement 5I. Wheniin thi-js extreme position, the blade is Aheld from movement by engagement ofthe shoulder 50 within the recess 5l, and the lblade will remain yretracted until the pin 49 'is again depressed and' longitudinal to move the blade into open position.

In Figures 5 through l0 Vof the drawing YI'd'isclo'se a Vmodified form Vof holder, which vhas many features in common with the construction above described. This razor blade holder Dis provided' with no handle and `is yextremely compact, and

therefore Acan 'be easilyV carried in a pocket or4 purse.,

The ,noleer vD meiddfes" ag hcucw' ieetangiilar outer lbotilyfhaving a slot in'one edge thereof 'from' has been assembled, I Y

plates 33 and 33B, whereupon the force exerted thereupon j extremity of the shank 'l5 and this which the blademay project. 'I'hebody is preferably formed of an upper panel 'having marginal flanges 6| along three adjoining marginal edges thereof. 'I'he flanges 6| and 63 extend into telescopic relationship and are securedA together to hold the upper and lower panels 6U and 62, respectively, in substantially parallel relationship. 'Ihe provision of along three adjoining edges leaves a fourth edge 64 open, and it is through this open edge that the blade and its reinforcing-member may project and retract. g Y

The upper panel 60 is provided with a slot 65 therein at substantially right angles to the open front side 64. PortionsA 66 of the upper panel 60 are off-set onto a plate substantially parallel and above the plane ofthe remainder of the panel 60, these oif-set portions 66 being connected by offsets 61 to the remainder of the panel. The slot 65` is provided with three longitudinally yspaced circular enlargements 69, 10, and 1|.

The razor blades are arranged to be clamped between two separate clamping plates 12 and '13. The upper clamping plate 'I2 is provided with an upstanding ear i4 cut therefrom and arranged to extend into the hollow shank 'I5 of the headed'adjusting pin'l. The Yshank 15 is of proper outer diameter to slide in the slot 6,5 and is provided with a circular flange or shoulderll of a size to fit snugly within the enlargements B9, 'I0 and 1|.

A still larger at the lower ilange 79 is recessed to receive the large diameter end ofa spiral coil spring 80. The 'small diameter end of the spring 80 is engaged in opposed notches formed at the baSeof the ear 74. lThe headed pin 'I6 and the upper reinforcing plate 12 are held together by the spring 80. V

4`The upper plate 12 is provided with a pair of oppositely disposed spaced apertures 8l therethrough, while the lower plate 13is provided with uptu'rned circular projections 82 which engage within the apertures 8 I These projections 82 arearranged to fit through the perforations origflange 19 is provided Ainally found in double edged razor blades, and

the projections hold the blade from twisting with respect to the reinforcing plates 12 and 13.

When the razor blade holder D is holdinga double edged razor blade E, as illustrated in Figures 5, 6, and 9 of the drawing, the projections 82 extend 'through apertures in the blade E, and one edge' of the blade Vprojects beyond the adjacent edges of the reinforcing plates 12 and 13.

when the blade E is in retracted position, as'

illustrated in Figure 5 of the drawing, the adjusting button or pin 16 is engaged in the central enlargement 10. When it is desired to project the razor blade E the pin 'I6 is depressed, compressing the spring 8 0 and longitudinal pressureis applied to slide the razor blade `E 12 illustrated in Figures-6 and 9 ofthe drawing.

The shoulder 11 then engages in the enlargement" 1I, holding the blade in projectingfposition. The blade is retracted by depressing the button 76 and sliding the blade and plates rearwardly until the shoulder l1 becomes engaged'in the enlargement 10. Y

. When the holder D is used for supporting a single edged razor blade F, as illustrated in Figures 7 and 10 of the drawing,xthe position of the reinforcing plates .12 and 'I3 is reversed. The reinforcing strip 83 embracing the rear edge of the4 blade F engages in longitudinallyextending slots 84 and 85 in the reinforcing platest'IZ- and 1.1.3, re,-

the flanges SI and 63/ and its plates and 13 outwardly into the projecting positionv spectively.` When thus reversed,.the blade F' will be found to be in button 16 is in the intermediate slot enlargement 1,0. By depressing theV pin or button 16 and exerting a rearward pressure on this pin or button, the razor blade may be slidably moved into retracted position in which the shoulder 'l1 is en gaged in the enlargement 69. Thus the holder is suitable for use with either type of blade, whether'it be possessed of two cutting edges or a single cutting edge. v

In accordance with the patent statutes, I have described the principles ofy construction and operation of my razor blade :holders and while I have endeavoredA to set forth the best embodiments thereof, I desire to have it understood that these'are only illustrative of a means of carrying out my invention, and that obvious changes may be made within the scope of the following claims without departing from the spirit of my invention;

I claim:

1. A razor blade holder comprising a hollow receptacle having an open side'therein, a pair of reinforcing plate means slidable in unison toward and away from said open side, razor blade means means on said operating means resiliently urged into said enlargements to hold said reinforcing plate means .from movement toward or 'away-from said open side of said receptacle.

'2; A razor blade holder comprising a hollow receptacle having an open side, a pair of clamping plate means within said receptacle and slidable inunison toward and away from said open side, a slot in said holder extending at substantially right angles to said open side and communieating therewith, Aspaced enlargements in said slot, means resiliently secured to said reinforcing plate means for sliding the same toward and away from said open side, said operating means extending through said slot, means on said operating means engageable in said spaced enlarge-- ments to hold said'reinforcing plate Vmeans from slidable movement, and a razor blade secured be'- tween said reinforcing plate means for movement therewith.

3. A vrazor blade holder comprising a hollow receptacle having an open side therein, a slot in said receptacle extending at substantially right angles to said open side and communicating therewith, 'a .pair of reinforcing plate means slidably positioned in said receptacle for movement .in unison toward or away fro-m said open side,` an operating button resiliently secured to said reinforcing plate means and extending throughsaid slot, a razor blade secured between said reinforcing plate means and slidable therewith from a position projecting from said open edge to fully enclosed position, and spaced en-t 4. A razorxblade holder comprlsingaflhollowg projecting position when the vin another of said en' hold said razor blade' in enclosed:v

second ange outwardly of said 7 receptacle' having an open side, a pair of reinforcing plate means slidable in unison in said hollow receptacle and designedrto support a razor blade therebetween, a slot in said receptacle extending at substantially right angles with respect to said open side thereof .andcommunieating therewith, nger means on one of said reinforcing plate means projecting, toward said slot, an operating button mounted on said finger for axial movement with respect thereto, resilient means between said button and said reinforcing plate'means, .a liange onsaid 'button engageable within said receptacle inwardly of said slot,4 shoulder means'adjacent said flange, spaced enlargements .in said slot adapted to receive said' shoulder means, and button head means on said 'buttonv extending Vthrough said slot.

y5. A razor blade holder comprising substantially flat receptacle having an open side, a slot in .said receptacle extending at substantially right angles to said open side, outwardly .off-set portions adjacent said slot,V a button having a flange inwardly of said off-set portions `and `a Aoff-set portions,

razor blade supportingk means said receptacle, and means resiliently .connecting said button'to said razor blade supporting means'.

6. A razorblade holder comprising a'hollow receptacle having vanopen side, a razor blade supporting means within said bodyjslidable toward and away from fsaid open side, a slot in said-receptacle body extending at substantially right angles to said open side, outwardly off-set portions `in said receptacle body on opposite sides of said slot forming an outwardly bowed slotted channel in said receptacle body, a button in said slothaving a flange slidable in said channel and a Asecond flange outwardly ofr said body, said button extending through said slot, means resiliently lsecuring said but-ton to said razor blade supporting means, spacedenlargements in said slot, gageable in Isaid enlargements to" hold said razor blade supporting means in a selected position.

'7. A razo;1 blade holder kcomprising a hollow receptacle body having an open side, a razor blade supporting means engageable with opposite A'sides of a blade slidable in said body toward and-away from said l pen side, a slot in saidl receptacle extending atr substantially right angles'fto Vsaid open side-and communicating therewith, spaced enlargements in said slot, .-a button extending through said slot resilient means connecting said button to ysaid razor blade supporting means, resiliently engageable in said enlargements, and

Vmeans for 'limiting the outward movement of said razor blade supporting lmeans with respect to said body. Y,

'8. A razor blade holder comprising a hollow receptacle body having an open side, .a razor blade supporting means engageable with opposite sides of 1a blade slidable in said 'body toward and :away from said open side, Aa slot'iin said bodyr at substantially right .angles to said open side, a button extending through. .said gslot, a iinger means on said razoi'blade supporting means engaging said button to" guide the same,

and ,resilient means connecting .said finger means f and said button. v

.9,.A razor blade' holder for single .edged .razor Sldable and shoulder means onv said button enshoulder meansv on said buttonr v ing said razor blade ward and away from said open vend, sal-d razor blade clamping means including a pair 'of resilient plates embracing the thickenedv'edge Yof the blade and contacting opposite -sdes -of the blade adjacent the thickened edge,` a slotv in said body at substantially right angles to said open end, means secured `to said razor blade clamping means and extending through saidy slot Afor actuating said razor bladey clamping means, and a slot in an edge of said receptacle body adjaen-t Said open end, said slot registering with-the thickened edge of said blade in one positionthereof, said blade being removable from between said clamping meansthroughsaid slot. A l

1o. A razor blade holder Comprisinga hollow receptacle body having an open end, a slot in said body extending at substantially right angles to Asaid open end, a razor blade support' slidable within said body toward and away from said open end, said support including a pair of clamping plates engageable with said blade to hold said blade from longitudinal movement relative t0 saidsupport while'permitting transverse move-y mentY thereof relative to said support, means on said support'extending through said slot for movsupport, and a slot in said body registerable with said razor blade in one position thereof to permit said razor blade to' be Y slidably disengaged from plates. p Y

11. A razor blade holder comprising a hollow receptacle body having an open end, a Vslot lin said body extending at substantially right angles to sai'dopen end, a razor blade rsupport .slidable .withinsaid body and ,movable towardgand away from said Vopen end, an operating means on said support extending through said slot, saidV razor blade support including a pair of substantially flat, plates designed to lie in superimposed ,relationship, transversely extending elongated regis'- tering slots ,through said plates adapted to vrebetween said `clamping ceive the thickened edge of. a single edged razor Y i blade, spaced apertures in one of said plates', and I lugs unl-,the other of .said plates designed to eX- tend into said apertures to hold said plates inV proper relative position. Y 1

. 12. VArazor blade Vholder for Asupporting single edged razor bladeswith Aa thickened reinforcing edge-and for supporting double edged-razor blades with spaced apertures therethrough, .comprising abody, a razor blade support movably secured y relative to said body, lsaid support .comprising a pair of .superimposed plates, elongated registering slots through said plates. .adapted to receive the 4thickened edge of asingle edged ,razor-blade,

blades havingv a thickened edge opposite thefcut- Y tingpedge thereof, the holder comprising a holhaving an open end,.a razor low receptacle body blade: .clamping means `slidable Vin Vsaid Jbody Ytoa pairof spaced apertures -in one of said plates, anda pairot-spaced lugs in the other of said platesdesigned to extend through said apertures and through `the apertures of a double edged razor blade. f i gl. A razor blade holder comprising a `hollow receptacle having anopen end, reinforcing plate means slidablyy-supported in said hollowreceptacle and-movable toward and away from said open end', said reinforcing plate .means Varranged to support a razor blade,paeslot in said reinforcing plate means longitudinallyv ofthe direction :of

movement thereof withinl said .hollow receptacle, and a finger .on saidhollowreceptacle engagable .inLsaid Slot to .limit slidable movement .-off

said freinforcingfplate means relative ,to Asaid ho'l; low receptacle. y f

1 .14.1K .razorfblade holderfor a razor blade ing? areinforceded'ge comprising a, lhollow ecep..`5

tacle having an open side, reinforcing plate means slidable in said hollow receptacle toward and away from said open side and including a pair of clamping members designed to embrace the reinforced edge of a razor blade and to engage said blade adjacent said reinforcing edge, a slot in one edge of said hollow receptacle in communication with said open end through which the reinforced edge of the razor blade may slide laterally with respect to the direction of movement of said reinforcing plate means, a slot in said reinforcing plate means longitudinally of the direction of movement thereof, and a linger ori said hollow receptacle slot to limit outward movement of said reinforcing plate means relative to said hollow receptacle.

engageable into said- 10 115. A razor blade holder forv single edge razo blades having a thickened edge opposite the cutting edge thereof, the holder comprising a hollow receptacle body having an open end, a razor blade clamping means slidable in said body to- Ward and away from said open end, said razor blade clamping means including a pair of resilient plates embracing the thickened edge of the blade and contacting opposite sides of the blade adjacent the thickened edge, and a slot in the edge of said receptacle body adjacent said open end, said slot registering with the thickened edge of said blade in one position thereof,

n said blade being removable from between said clamping means through said slot.

J ENNIN GS NELSON

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