US1176780A - Safety-razor. - Google Patents

Description

H. J. ROTH.

SAFETY RAZOR. APPLICATION 'HLED APR. 21. 1914.,

Patnted Mar. 28, 1916.

sain

HENRY il. ROTH, OIE NEW YORK, N. Y.

I Speeification cf Letters Patent.

Patented Man. 28, 1916.

Application filed April 21, 1914. Serial No. 833,346.

T0 all whom it may concern:

Be it known that I, HENRY J. ROTH, a citizen of the United States, residing in the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Iniprovements in Safety-Razors, of which the following is a specification.

This invention relates to improvements in safety razors and particularly to telescoping handles for the same, which are adapted to be easily manipulated and firr nly held in open or closed position. The improved handle will be described in connection with a simple form of safety razor apparatus which can efiectively be used with the socalled wafer razor blade.

In order that my invention may be more clearly understood, attention is hereby directed to the accompanying drawings form ing part of the specificatin and illustrating the preferred embodiment of my improved apparatus.

In the drawings, Figure 1 represents in side elevation my improved razor with the blade positioned therein and with the telescoping handle in extended position, Fig. 2 represents an enlarged view of the same, part in vertical section and part in side clevation, Fig. 3 is a view similar to Fig. 1 with the telescoping handle in closed position, and Fig. 4 is a section taken on line 41 of Fig. 3.

Referring to the draivings, the body of the razor comprises an integral frame 1 having a central web 01 hub portion 2 arranged in an approximately horizontal plane. This web is provided with a circular central opening in which is mounted the ring 3 which is screw-threaded on its inner surface to receive a screw-threaded end of the handle 4. EXtending rearwardly from the central web 2 is a portion 5 of the'frame providl at its rear edge with an upturned flange (S. Extending forwardly from the web 2 is a portion 7 ending in the usual comb-like guard 8. ferred to, which (extends rearwardly from the central web 2, has integral therewith a rear cross portion extending the width of the frame, side portions 10, and.a front cross portion extending across the frame in front of the central web 2, the comh 8 being formedon the forward portion of this front cross portion. The side portions 10 and transVersely extending portions referred to The. portion 5 cf the frame re-' are inclined at a suitable angle to form a supporting surface for a Wafer razor-blade, which thus extends forwardly, when mounted on the holder in position for use at an acute angle to the axis of the handle 4.

The upwrdly extending rear flange6 is provided with openings through which set screws 6 are adjusted to form an adjustable abutment against which the rear edge of the razor-blade is positioned. Set screws 6 extend above the rear cross portion of the frame and closely adjacent thereto, flange 6 only extending above the set screws a sufficient distance to form a proper bearing surface therefor. In devices of this character as previ0usly constructed, a flange similar to firnge 6 has been extended upwardly so far as to interfere with the operation 0 shaving.

The razor-blade is positioned by means of lugs 13 extending upwardly from the side edges of side portions 10 of the frame, and adapted to receive the side edges of the razor-blade. The blade is clamped when positionedbetween lugs 13 by means of pivoted arms 14 which are pivoted to the rear surfaces of side portions 10 of the frame, these arms having upwardlv and transversely extending portions 15 on their free ends adapted to extend over and clamp the side edges 01 the razor-blade when the same is positioned on the frame. To accomplish the proper position of lugs 15 to coperate with a wafer razor-blade as intended, arms 14 are bent at a somewhat sharper angle than side-memhers 10 of the frame. The details of the frame construction are not claimed hcrein, but only the handle.

The handle 4 is provided with a longitudinal slot 16 extending for the full length of the shaft 14 betwen the lower end 17 thereof and the screw-threaded portion of rcduced diamctor on the other end which is adapted to be screwed into the centralopen i11g of the fraine 1. A sleeve 18 is mounted on shaft 4 to be telescopically extended to form a handle. of the desired length or to he pnshed into closed position when the razor is to be packed in a. box. Sleeve 18 is provided with an inwardl v extending projection 1 adapted to fit within slot 16 when sleeve 18 is in its inner or closed position, projection 19 being formed by simply punching or pressing the metal of the sleeve inwardly at the desired point. When the sleeve is extendedinto its open position s0 that projection 19 has passed beyond the.

end surface 17 of the shaft, the sleeve can be rotated a portion of a revo-lution so that projection 19 coacts with the end surface 17 of the shaft 4 to prevent inward movement of the sleeve. The sleeve 18 also has its forward edge 20 bent inwardly to a s1ight extent as shown and shaft 4 is given a correspondingly increased diameter as shown at 21 for a portion of its length adjacent to end 17 of the shaft. The length of the flange or raised portion 21 of the shaft is preferably slightly less than the distance betWeen the projection 19 and the inwardly turned edge 20 of the sleeve, the result of this construction being that when the sleeve has been extended into its outer position and rotated, the projection 19 coacts With surface 17 to prevent inward movement of-the sleeve and the inwardly turned edge 20 of the sleeve coacts with the raised edge of the enlarged portion 21 of the shaft to prevent further outward movementof the sleeve,

which latter is thereby locked against axial movement either up or doWn the shaft 4.

Having now described my invention, what I c1aiin and desire to protect by Letters Patent is as follows:

1. In a safety razor, the combination of a handle comprising a cylindrical shaft adapted to be secured 'to the blade-holder of the razor having a longitudinal groove extending throughout its length, and being formed With a circumferential fiange adjacent its lower end, and a sleeve mounted to telescope upon said 'shaft, provided with an inwardly-extending projection integral with and pressed from the metal of the sleeve, adapted to slide in said groove and to press against the rear end of said shaft when said sleeve is in extended position and is rotated about said shaft, With said projection removed from said groove, the forward end of said sleeve being providedwith an inwardly-extending fiange adapted to coact with said shaft flange when said sleeve is in extended position, substantially as set forth.

2. In a safety razor, the combination of a handle comprising a cylindrical shaft, and a sleeve mounted thereon and adapted to slide thereon into closed and extended posi- A tions, said shaft and sleeve being formd with coacting means, integral therewith, for locking said sleeve in its extended position against movement longitudinally of said shaft either up or clown, said means comprising a collar portion at the end of said shaft and inwardly extending projections on said sleeve adapted to contact both upper and lower surfaces of said collar portion when said sleeve is arranged in its extended position, substantially as set forth.

This specification signed and witnessed this 20th day of April, 1914.

. HENRY J. ROTH. Witnesses:

' S. O. EDMONDS, I. MCINTOSH.

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