US1627664A - Safety-razor-blade holder - Google Patents

Description

0 1927- v H. s. NODDINGS SAFETY RAZOR BI ADE HOLDER Original Filed Nov. 1924 H I INVENTOR.

:7- I g a m ATTORNEY.

Patented May 10, 1927.

UNITED T S v 1,627,664 PA -TEN T- 0 Pete e.-

HENRY s. NODDINGS; or SPRINGFIELD, MAssAcHUsETTsi I SAFETY-RAZOR-BLAZDE noLnEn.

Application filed November 5, 1924, Serial no; w'evgseef Renewed octoberia, 19a; 1

My invention relates to improvements in devices for holding safety-razor blades while" being sharpened or honed, and consists es sentially ot' a pair of jaws held together in normally closed position by means ota rod and spring of certain peculiar shape or formation, one of said jaws being provided with short studs or posts arranged to fit'intohole's in openings in a blade, together with such otherparts and members asmay be necessary. or desirablein order to render'the holder complete and serviceable in everyres'pect, all as hereinafter set forth. 4

The jaws of this device have parts which grip the blade, and each of which forms an angle of approximately ten degrees, as will presently more clearly appear. jaws are so constructed exteriorly that, when either jaw and the exposed cutting edge of a blade, which' is in place in the holder, are supported on a given plane, there is. a clearance between such plane and the portions of the jaw andblade't-hat are betweenthe bearing parts, and it is with this plane that'th'e' associated gripplng part forms an approximately ten-degree angle, and said plane forms with a plane similarly applied to the other jaw andthe other side ofsaid cutt ng edge an included angle of approximately twenty degrees, which is the included angle oi said cutting edge. In other words, the included angle of each cutting edge of the blade is twenty degrees, and the jaws are so constructed that either canbe supported on a stoneor hone when a blade 18 in place intheholder, in such a manner ZtS'tO leavethe aforesaid clearance, and, at the" same-time, insure the sharpening of the'blade at the proper angle. j

The primary object of my invention is to produce a holdery'of the character described above, with which 'a safety-razor blade held therein can be accurately]. sharpened or honed, such holder being comparatively simple and inexpensive in construction' A blade in this holder is so held and can be so guided that the exposed edgeof said blade is applied to the" stone. or hone at exactlythe proper angle, and withoutliabilitycto rock or roll, which makes it possible for an inexperienced person tossharpen the blade without injuring the same.

Another object is to provide a blade holder in which the blade can be easily and quickly placed in position, and from which it can be as easily and quickly removed.

The holder consistsfof few parts, among whic'lr'is' a springthat serves the "purpose, not only'ot normally retaining the jaws 'in closed position. butof assisting in holding the members tog'et ie-r and retaining them in proper relative positionsat all times. I I

Other ob ects and advantages willapp'ear whichj j j c Figure 1 IS a side elevation, on an enlarged scale, of a safety-,razor-blade holdenwhich embodies a practicalform of my invention, the blade being shown'in position ready'to' And said' I be sharpened Fig. 2 'a lon itudinal section" 22, looking in the direction, of the 'associ through said holder and blade taken on lines ated arrow, in Fig, 1, and, Fig. 3, a.re'a'r end elevation of the, holder.

Sim1lar reference characters designate similar partsthroughout the several views." The holder comprises two generally 'similar jaws 1, a hinge or pivot rod 3,'a spring4,

and two-short posts'or studs5. -A safety razor blade is represented at 6. Blades of this character are made with holes therein, as is well'understood, and the studs 5, which are set 111' one of the jaws ata short distance back. from the front edge thereof, are so spaced apart and ofls'uch a size as to be rfe-f 'CGIVGCl and .fit snugly within the aforesaid holes. In Fig. 2, the stud ,5 therein appearingis shown in one of the holesin the blade 6. The' studs'5 are set back the proper disy tance from; the front edge of the jaw 1, in

which they are located, to leave a sufficient Y portion of the blade 6 engagedtliereby'to project beyond'said', edge and enable the ex posed cutting edge of said blade to" be sharpened. The heads of the stu ds 5 are in clined tocorrespond with the inclination of i the jaw 1 which closes over the same.

The blade6 has two oppositely-disposed cutting edges 7 the included angle ofeachi oi', I

which is twenty degrees, it is of -a given wldthand a given/thickness, and has-at least 1.

two'openings therein,- all according to the usual customiincident to the produetionof satet -razor blades in eneral.

Each jaw 1 has a pair of lugs 8 on the inside, and these lugs are perforated later-' ally to receive the rod 3. Preferably the lugs 8 are struck or punched out of the jaws l,

as shown.

endwise movement in the lugs 8, while at the same time pressing outwardly or apart the rear ends of the jaws 1 and so forcing the front ends of said jaws toward each other.

The portions of the inner faces of the jaws 1 that are in front of the studs 5 are the parts that bear directly on the blade (3, and each of such bearing parts is formed at an angle of approximately ten degrees to the exterior angle of the corresponding side of the holder, as will presently be more fully explained.

There is a lateral bend in each jaw 1 a short distance from the back edge of said jaw, which bend forms exteriorly what may be termed a shoulder 9. The angle which a line drawn from the shoulder 9 of either jaw 1 to the exposed cutting edge 7 of the blade 6 in the holder, on the same side of said cutting edge with said shoulder, forms with the gripping part of said jaw, which is in front of the studs 8, is an angle of approximately 10, and there is a clearance between such line and the adjacent face of the jaw forward of the shouldersee broken lines in Fig. 2. Thus it is seen that the parallel sides of the blade 6. are gripped between two parallel surfaces of the jaws 1, such surfaces extending 'rom the studs 5 to the front edges of said jaws, and that the holder and blade can be held on a flat sur-' face at an angle to said parallel surfaces and the sides of the blade of ten degrees, bearing only at the under shoulder 9 and the under side of the exposed cutting edge 7. Such being the case, the holder and blade can be moved about on a hone without con tact with said hone except by the under shoulder 9 and the under side of the exposed cutting edge 7, and said under side of said cutting edge consequently must be ground or sharpened at the required ten-degree angle. Without the clearance which exists between the hone and the under sides of the holder and blade, the holder would be liable to become unevenly worn and thus fail roperly to support the blade while being s arpened, with the result that the required angle of the cutting edge of the blade could not be obtained.

The studs 5 being set in one of the jaws 1, it is necessary to provide in the other jaw openings 10-10 to receive the heads of said lugs when the jaws are closed. Due to the fact that the studs 5 pass through the blade 6 into the openings 10, and that the spring 4 causes the jaw to grip said blade tightly, the latter is held very securelyin place during the honing operation.

In practice, the jaws 1 back of the shoulder 9 are gripped and forced toward each other at their rear ends, against the resiliency ofthe spring l, thus separating the front ends of said jaws, the blade 6 is inserted between such ends and over the studs 5, with the latter in the holes in the blade, and said jaws are released to said spring.

The blade 6 is now securely supported and held with a portion of the same projecting beyond the front edges of the jaws, and the holder with the blade is placed on a stone and moved about thereon to whatever extent may be necessary to hone the under side of the exposed cutting edge 7 Then the holder is turned over and the other side of the exposed cutting edge 7 is honed. Next the jaws 1 are again opened, and the blade 6 is removed and replaced in reverse posit-ion. And finally the newly exposed cutting edge 7 is honed first on one side and then on the other, as was the first cutting edge, when the blade, now with both cutting edges sharp, and ready for use, is removed from the holder.

More or less change in the construction, and arrangement of some or all of the parts of this holder may 'be made, without departing from the spirit of my invention or exceeding the scope of what is claimed.

lVhat I claim as my invention, and dereceive said studs, both of said jaws having blade-gripping parts, of a rod extending through all of said lugs, and an approximately ii-shaped spring, the free terminals of which extend outwardly, mounted with its heel on said rod and with the free end portions only of said terminals engaging the rear terminal portions of said jaws adjacent to the rear edges thereof.

HENRY S. NODDINGS.

shape, size,

Images