US985419A - Safety-razor blade. - Google Patents

Description

0'. KAMBFE. SAFETY RAZOR BLADE. 7 APPLICATION FILED JAN. 10,1910.

Patnted Feb. 28, 1911.

UUHJU mmmmv illNML-H UNITED sTArEs PglENT OFFICE.

or'ro warn; or NEW roan, n. Y., assrenon r0 xmrrn 1230 s., A coaromrron or NEW YORK. 1

's immer-12.4w:on amazon.

To all whom itmay concern:

Be it known that I, 0116 Knmrrn, a citi-' zen'of the United States, residing in'the borough of Brooklyn, in the county of Kings, city and Stateof New York, have invented an Improvement in Safety-Razor Blades, of which the following is aspecification. 1 I

Safety razors are commonly provided with blades of thin flexible steel in sets'of a dozen more or less. Many of these blades are normally flat and are'securel held. in a. suitable holder. for use in said at condition. Other of these-.blades-while normally flatare secured in the holder "for. use in which the blade is transversely bent or flexed but with a, straightcuttinged e; Other of these normally flat blades have also been employed in'aholder in which the blade is held transversely flat but longitu-' dinally bent or flexed so as to present a curved cutting edge to the face,--whic h. is believed to be more advantageousfor use than a straight edge. Q

My invention relates to a tlexiblqsafety razor blade normally fiat, strengthened along one edge, adapted to be held in its normally flat condition for 'stropping or honing, and yet adapted to be; longitudinally bent and flexed so as to resent a curved cutting edge to the face in s aving.

In carrying out m invent-ion I rvide a thin normally fiat s eet steel bla e sharpened along one of its longer edges and I secure thereto along the opposite edge and in any suitable or desired manner, a frame. of suitable material of flattened U-form in cross section, preferably of skeleton or openwork form. This frame is preferably made of spring steel,-it stifiens the blade, provides for readily holding the blade for honing or stropping and yet is adapted to yield longitudinally when desired so asto flex and bend the blade in a suitable holder provided therefor to present a curved cutting edge to the face in shaving. The blade of my invention, furthermore, returns when released from the holder to a normally flat condition.

a In the (IraWing,'Fig11re 1 is an elevation, Fig. 2a vertical cross section, Fig. 3 atop edge view as per Fig. 1., Fig. 4 a bottom edge view as per Fig. 1. and Fig. 5 a plan of the frame as laid out flat, or before the same is bent'up into flattened U-shape; said figures Specification of Letters Iatent. ap uemon filed January 10, 1910. Serial No. 537; 176.

Patented Feb. 28, 191i;

relating to a form of my invention. Fig. 6 is a plan of a frame of modified form as laid out flat. Fig. 7 is an elevation and Fig. 8 a central cross section of still another form 0 my invention.

In igsrl to 5 inclusive, a re resents the blade inwhich 2 is the sharpene edge and 3 the opposite unsharpened edge. These are the longer edges .of the b1ade;=4 representing flattened :U-form or shape in cross section.- Fig. fi shows the form of this frame before it is bent up into flattened U-shape. This 'frame is provided with a series of'notches 5 extending in from one edge and a series 6 extending. in from the opposite edge, which notches are staggered; that is, so as not to bring the notches in line, and it will be noticed that these series;- of notches extend from the oppositeedges up to the central line of the frame. .Tlierefore when the i.

frame is-bent from the flatform in which it isstamped out into the flattened U-fo'rm to. receive the blade and be firmly clamped "to or otherwise fastened to the blade, there are produced between the inner ends of the said notches narrow intervening portions of the sheet steel which assist somewhat in the bendingaction. Fig. 3 quite plainly illustrates this condition.

The blade of my improvement is adapted for use in the holder shown in my application for Letters, Patent filed December 9, 1909, Serial #533,998, and the same might be used in the holder shown in my application' filed July 20, 1907, Serial #384,798. and might be adapted for use in a frame of different construction so long as the said frame is made with a curved guard comb and devices atthe opposite edges for grasping the blade because with the blade of my present invention the same is longitudinally bent or flexed as inserted in the holder so that when in the holder the cutting edge is curved toward the face in shaving.

In Fig. 6 I have shown a modified form of frame in which there is produced a 'ceutral series of apertures 7 in the blade which r in length run transversely of the blade and in series through the center longitudinally of the blade, and ma staggered relation to this central series there are. series of apertux-es 8 and 9 between the same and the o posite edges of the blade, so that'when t e blade is bent'into. flattened U-form the cen- Q i i 985,419

tral portion is bent at about the center of the openings 7 bet-ween which there are preferably narrowthicknesses of the sheet steel to slightly yield in longitudinally bending the blade and the series 8 and 9 assist very materially in the bending of the opposite flat faces of the U-form.

In the modification shown in Figs"? and 8, the blade a is represented as associated with a frame I) of flat U-form which frai'ne however is formed of an elastic material such as hard rubber or celluloid and this may be secured to the frame in'any desired or suitable manner. This like 'the other frames is secured to ablade in' a normally flat condition and because ofjits inherent resiliency is adapted to bend with the blade longitudinally so as to flex the bladefor use ina suit-able holder and in use present the sharpened edge 2 in a curved form to the face for shaving. I

In view of the iiormally flat condition of the thin flexible blades of my invention, they are preemine'ntly adapted for grinding, honing or 'StIOPPllIgSO as to maintain a sharpened edge for use. V

I claim as myrinvention:

1. As anew article of manufacture, a thin flexible steel blade for a safety razor, sharpened alon onelongltudlnal edge and pro vided witi a 'yieldable reinforcing frame a along itsopposlte unsharpened edge ot U- form flattened in cross section and adapted tobendwhen the blade is flexed for use from a flat to :1 curved form.

L. As a new article of manufacture, a thin flexible blade of steel .for a safety razor, comprising a rectangular form of steel sharpened along one longitudinal edge and nnsharpened along the opposite edge and a flattened yieldable reinforcing U-fralne receiving and secured to the unsharpened edge and adapted to bend into a concave-convex form with. the thin razor blade when they same is flex'eclfso as to present a curved'cuttlng'edge to,t.he;face 1n shaving.

3. As a new article of manufacture, 'a thin flexible blade of steel for a safety razor, comprising a rectangular form of steel sharpened along one longitudinal edge and unsharpened along the opposite .edge, and flattened U-frame receiving and secured to the unsharpened edge and said ,frame provided -with series of apertures suitably arranged. at

normally flat steel blade for a safety razor.

sharpened along one of its longest edges and a yieldable reinforcing frame secured to the said blade alongth'e edge opposite" to the sharpened edge and normally flat, and both blade and frame adapted tobend 0r flex for use when inserted in-a suitable holder,

As a new articleof manufacture,- li thin normally flat steel blade for asafetvrazor, sharpened along one of its longest edges and an open work' frame of sprin sheet metal also normally flat and secured to the said blade along the edgeopposite to, the sharpened edge and both blade and f 'am'e adapted I 'to-bend or flex when inserted in a suitable holder. I

Signed by niethis 3d dayof January 1910.

. a OTTO KAMPF'E. \Vit-nesseszi f.

Geo. T. PINCKNEY,

1C. Zaoxranrxsax.

Images