US1776247A

US1776247A - Corn razor

Info

Publication number: US1776247A
Application number: US688880A
Authority: US
Inventors: Marcus B Behrman
Original assignee: LOX SEAL CORP
Current assignee: LOX SEAL Corp
Priority date: 1924-01-26
Filing date: 1924-01-26
Publication date: 1930-09-23
Anticipated expiration: 1947-09-23

Description

sum. 23-, 193o.- M. B. 5mm 1.116.241

com: RAZOR Filed Jan. 26, 1924 INVENTOR r in wh Patented Sept. 23, 1930 TENT 'oFricE MARCUS B. IBEHRMAN, OF NEW YORK, N. Y.,

7 TION, DIE BROOKLYN, NEW YORK,

ASSIGNOR TO THE LOX SEAL CORPORA- A CORPORATION on NEW YORK CORN RAZOR Application filed. January 26 My present invention relates broadly to a cutting instrument and more particularly to such an association of a blade and a holder whereby the blade can be held in a position ich it presents a curved cutting edge to the part in connection with which it is to be employed, and more particularly a concavely curved cutting edge, and coordinately involves an arrangement whereby the blade can bereadily inserted and removed for replacement or repair.

Considered broadly from one aspect, my invention involves the provision of a holderarranged to support a blade which is curved, and more particularly of a holder having a curved channel within which a blade is to be positioned and still more particularly the provision with such holder of a flexible blade -which is adapted to be flexed so as to have it conform in curvature to the curvature of suchrchannel to permit of its association therewith and insertion therein. My invention further involves an arrangement wheremined curvature by having one end thereof anchored in the curved channel which will permit of the curving of the remaining parts of the blade to conform to the'curvature of the channel and while thus flexed the blade can be effectively worked into the channel.

From another aspect, my invention involves an association of a holder and a blade whereby part of the holderforms a .fulcrum for one end of the blade, the blade then being moved about said fulcrum into the desired association with the holder.

My invention further involves .the provision of a holder and a blade with elements spaced apart on the holder to engage with opposite ends of the blade and more particularly an arrangement wherein one of saidv spaced portions is in the form of'a recess in which the end of the blade is received.

My invention further. involves the provision of an arrangement whereby the holder and a blade are provided with interengaging elements which predetermine the desired association of the two and coordinately a provision to prevent the accidental movement of the blade from its predetermined position,

' longitudinally 1924. Serial No. 688,880.

and finally myinvention involves the, provision of a simple and inexpensive construction of the'character set forth, capableof use with a maximum of efliciencyand a minimum of cost. p

IVhile I have herein referred to my in vention as being for a corn razor and have illustratedin thedrawings a specific embodiment of my inventiomi will beunderstood that such embodiment is merelyillustrative, except to the extent that the specific construction is set forth in the claims and that the referenceto my invention as being .ELCQIII razor is as to certain phases thereof only for purposes of convenience as, featuresthereof are capable of a much wider field ofutility, as, for instance, removingcallouses orother undesirable excrescences orprotuberances.

I have illustrated one embodiment of my invention in drawingswherein-j A I Fig. 1 ista top plan view of saidembodiment;

Fig. 2 is a side elevationalview thereof, by theblade can be flexed to such predeter- I Fig. 3 is a bottom plan view;

, Fig. 4 is the perspective intended to illusinserting and removing trate the method of the blade; and

Fig. 5 is an enlarged transverse'section taken on line 55 of Fig. 1.2 r 1 O'n' viewing the drawings, it will be observed that the-illustrated; embodiment is made up generally of two elements, namely, the handle 10 and the blade holder ll and that the latter is provided with a channel 12 which as shown in Fig. 2 is; generally curved thereof so that theblade13 received in said channel must necessarily be curved correspondingly,thereto. I will now describe my preferred manner of forming this channel 12. p f A p I The holder 11 is preferably formed from a single blank which is bent intermediate of its longitudinal edges to provide the superposed portions or

members

14 and 15 which are spaced apart for thedesired or prede-v termined extent to provide the channel 12 referred to, and in the embodiment shown the aforementioned curvature of the channel is an incident to and results from the curvature of the holder., Ipreferably employ a member 15, the extensionl? which serves to aihx the blade holder 11 to the handle 1Q and which then has its edge 18 arranged angularly or narrow to the point 19, at which point it has a cut-in portion 20 and tne lateral extension 21. with the downwardly extending flange portion 22 and the end portion 23 all for purposes that will shortly appear.

,As will be observed on viewing Fig. 1 of the drawing, the" other of the superposed portions 14 is preferably made much shorter beginning at a point which corresponds more or less with that at which the member 15 be- 25 gins to narrow," namely, the point 24. It will be observed that this portion 14 is attached to the member 15 only along the back 11. 'lVhile this member 14 tapers or narrows at an angle which is substantially that of the member 15, it is considerably wider than the superposed member 15 and is further provided with the channel or slot 28 extending in a direction substantially parallel to the angular free edges of both superposed menibers which define their degree of taper. In this manner, that is by the slot 28, there is therefore provided an edge 20 which corresponds with and coacts'with the edge 18 of the member 15 and an edge 30 which will be further hereinafter referred to, it being observed that the cutting edge 31 of theblade 13 is so positioned and dimensioned that when inserted in the channel 12 it is positioned at a point intermediate the side edges 2 and 30 of the slot 28. It willbefurther observed that the member 14 is further provided with an end extension 32 which corresponds somewhat to the portion 23 of the:

member 15.

Upon viewing Figs. 2 and 3, it will be observed that the part of the channel formed between the

extensions

23 and 32 is closed at its upper free end 34 in any desired or preferred manner as by 5-..- metal at that point and that the flange 22 forms a side closure forthis portion of the channel so' that there is thus-formed what is virtually a recess 33 atthe upper or outer end of the holder, which recess is delimited to and defined by the

portions

23, 32, 21 22 and In other words, the holder formed in the manner thus described provides not only the curved channel 12 already referred to but also forms this curved channel at its end us into what is in fact a recess.

so as to cause this member 15 totaperx.

site side edge between which is punching down the;

'38 which extends longitudinally of the blade and angularly of the back portion 37 and is provided at its inner end with the portion 39 bounded or delimited in part by the back 37 so and the unsharpenedportion 40 of the oppoprovided the longitudinally extending open slot 41. lhe

narrowest oroutermost end 42 of the blade is made of a width so as to be received with- 1n the recess 33 above referred to and to permit-of its ready insert-ion into said recess and of its-retentiontherein with the blade in its normal flat condition, I have provided the cut in portion 20 already referred to and have made the recess portion 33 of the channel 12 oi rch acharacter that the outer or narrowest end of the blade13 can be inserted therein by a straight in and out movement, and this condition of the blade is illustrated at 16 lll'gfi dotted lines in Fig. 2 and in full lines in Fig.

4. 'With the blade in this uncurved and unfieied position and extending angularly longitudinally from its normal position in channel.' 12 as shown in Fig. 4, the end 40 of the m0 blade 13 is grasped and forced. downwardly -so as to flex the blade until this .end 40 is substanti ally in the plane of the channel oppositesaid end when the curvature of the blade will necessarily correspond to the ourvaturexof the channel 12 upon which an inward. movement of this end 40, that'is, a movement thereof toward the back .11 of the holder 11 will serve to force the blade into the position shown in Fig. 1.

For the purpose of predetermining the position of the blade, that is, the position in which the blade should be for a proper cutting action, the holderll and the blade are provided with coacting elements which 011- 1 5 the embodiment shown are the slot 41 in the blade13 already described and a projection 45 punched up from or otherwise associated with the; member 15, which projection is of 'a width'to engage withinthe slot 41 and -izo in the inward movement of the blade above referred to, the lobe 46 of the end 40 will be forced upwardly over this projection 45 and then will snap into position in back thereof-thus locking the blade in the prede- '"l termined position with the projection 45 received within the slot or opening 41 and in order to increase the coaction between the

parts

41 and 45 the projection 45 may be made of a width slightly greater than that me of the slot 41 thereby obtaining additionally a gripping action between the side walls of the slot 41 and the member 45.

When it is desired to remove a blade either for replacement or for some other reason, a finger is engaged with the lobe 46, referred to, which action will be permitted by the notch 47 formed on the member 15, and the lobe is'pushed upwardly above the level of the projection 45 and the blade 13 then forced out of the channel 12 until it assumes the fiat or normal position shown in Fig. 4, the narrow end portion of the blade'being however retained in the recess 33. This position of the blade corresponds substantially to a similar one when the blade is being inserted. The blade can now be fully withdrawn by a backward pull thereon, which will disengage the blade end from the recess 33. In this manner I provide against the drawback of the blade jumping or snapping. altogether out of the channel 12 as it assumes its flat condition. The recess 33 thus serves as a fulcrum about which or rather within which the blade end turns as it is moved out of the channel 12 and the angular position of the recess 33 with reference to the channel is such that the plane of the recess will be of a character as to hold the blade in the plane 2 indicated in the dotted lines 16 in Fig. 2 and to still further accentuate the gripping action of the recess 33 upon the blade end I bend the end in which the recess 33 is formed slightly in the opposite direction.

Upon viewing Figs. 2 and 4, it will be observed that the recess 33 formed by the

parts

23, 32, 21, 22 is open to the front at the point 48 which opening will serve to admit a pointed instrument such as a pin to permit of the removal of a blade point which may have been broken off, the point being forced into the channel 12 and then dropped out.

It will thus be observed that I have produced an implementwhich will cut along a plane which is curved and which will produce a out along an increased area or surface as the depth of the cut is increased. The advantage of such an arrangement in connection with the treatment of corns will be obvious. In addition the curvature of the blade permits of the use of different portions of the cutting edge for successive cutting operations. The action of an implement of this lustrated its use, what I claim as new and desire to secure by Letters Patent is:

s 1.' In a device of the character described, a blade holder comprising longitudinally extended superposed curved members maintained in fixed spaced relation so as to form a channel therebetween and closed along one of its longitudinally extending sides and anchoring means on one end of the blade, whereby one end of the blade can be anchored in said means and the blade flexed to a desired curvature.

2. In a device of the character described, in combination, a flexible blade, a curved holder therefor and a recess in one end of said holder for receiving one end of the blade, whereby one end of the blade can be anchored in said recess and flexed to the curvature of the holder.

3. In combination with a corn-razor'blade holder presenting a channel open along one side and inclinedalong said open side so as to cause the channel to narrow toward one end and presenting a recess at said narrow end, a tapered blade having its unsharpened' edge arranged longitudinally thereof and its sharpened edge arranged at an angle so as to present said sharpened edge through the inclined open side of the holder and to have its narrowed end received in the recess of the holder.

In testimony signed my name.

I MARCUS B. BEHRMAN.

whereof I have hereunto character upon a corn will be a paring one i rather than a cutting one, and the chips will be discharged through the slot 28. The portion of the cutting edge of the blade, predetermined in the manner above set forth, will be substantially parallel to the slot 28 and the

edges

18 and 29 of the superposed members. The angularly extending portion 30 of the member 14 will serve as a guard for the knife edge in a well known manner.

Having thus described my invention and il-