US1754807A - Safety razor - Google Patents

Description

April 15, 1930.

B. TEwELow E AL 1,754,307

SAFETY RAZOR Filed July 31, 1926 'IIIA. F'IIIIIIIIII'IQIIII- INVENTORS.

Mam

ATTORNEY.

Patented Apr. 15, 1930 UNITED STATES PATENT OFFICE BERNARD TEWELOW, OF WILMINGTON, DELAWARE, AND SOLOMON TEWELOW, OI IPHILADELPHIA, PENNSYLVANIA SAFETY RAZOR Application filed. July 31, 1926.

This invention relates to an improved construction of safety razor and has reference to a structure that may be used to shave the face or to remove hair from cavities such as the cars and nostrils.

The present invention is a direct improvement on the cutter illustrated in prior Patent 1,229,824 granted to us June 12th, 1917, and the invention resides in certain novel features 16 and combinations of parts hereinafter described and particularly pointed out in the appended claim.

The invention is illustrated in the accompanying drawing, wherein,-

Fig. 1 shows the improved device in side view.

Fig. 2 illustrates the same partly in vertical longitudinal section.

Fig. 3 shows an enlarged cross-sectional detail through the device as the same would appear if viewed on the line 33 of Fig. 2.

Fig. 4 illustrates another cross-sectional detail through the device, also on an enlarged scale,-the section being taken on the line 4-4 of Fig. 2.

Fig. 5 shows still another cross-sectional detail on an enlarged scale,this section being taken on the line 5-5 of Fig. 1.

Fig. 6 illustrates a face view of the con so cave side of the stationary clamping member.

stem with an enlargement 13, at one end thereof the interior of which latter is provided with a tapered or cone-shaped socket 14, the smaller end of which communicates with a screw-threaded bore 15 in the handleend.

A stationary clamping member 16 is employed which latter is provided with a convex outer side 17, and a concave inner or clamping face 18. A plurality of pins 19, are carried by the stationary member and these pins Serial No. 126,176.

project from the concave side of said member for a purpose that will presently be explained.

One end of the stationary member has a semi-circular lug 20, projecting therefrom which lug has a bottom face 21 that is flat and is in line with and on the same plane as the opposite side edges 22, at the concave side of said stationary member as shown in Fig. 7 0f the drawing.

The semi-circular lug 20 has a half-cone shape on its exterior and this lug carries a circular plug 23,-that is, a plug that is circular in cross-section, and this plug. is provided with circumferential screw-threads 24.

By reference to Fig. 2, of the drawing it will be noted that the semi-circular half-cone lug 20, has an inclination or taper to correspond to the taper of the socket 14 in the handle or stem and that the size of the plug 23, is such as to screw into the threaded bore 15 so that when the plug 23, is screwed into the bore the semi-circular lug 20 will be up tight in the socket 14.

At the outer end, the concavo-convex clamping member is provided with a plurality of hinge eyes 25, for a purpose also presently to be explained.

The device further employs a movable clamping member 26, which has a convex in ner side or face.27 and a concave outer side or face 28.

One end of this movable member has an enlargement 29, that isprovided with a convex outer surface 30, and a convex inner surface 81,the latter convex surface being curved to. conform to and lit within the concave inner surface 18, of the stationary member, as shown in the sectional view of Fig. 4.

A semi-circular or half-cone lug 32, projects from the enlargement end of the movable member and this lug has a flat surface 33, which is of a sizeand shape to register with the lug 20, and flat face 21, on the stationary member. The end of the lug 32, has position directly in front of the circular plug 23 and seats close thereto at the inner end as clearly shown in Fig. 2, of the drawing.

The inner convex side or face of the movable clamping member 26, is provided with a cave face and the other a plurality of cavities 34, of a size and shape to receive the projecting ends of the pins 19.

The opposite longitudinal edges of the movable clamping member 26, are provided with a series of teeth, 35, which form guards and the end of said movable clamping memher is provided with a plurality of hingeeyes 36, which intermesh with the hinge-eyes 25, an the stationary member and form a bin e joint at the ends of the two members.

Tie cutter blade 37 employed is of thin steel and has cutting edges 38, at opposite Sides and in the present instance this blade has recesses, holes or openings 39, which enage the pins 19, so as to properly position the Iade between the members.

In operation, the stem or handle 12, is rotated with respect to the two clampin members 16 and 26 so as to travel along t e cirruler plug 23 until the cone or socket 14, frees the tapered lug 32, of the movable clamping member.

when said lug 32, is freed, the lug-end thereof may be swung outwardly away from the cone-socket and thereby release the blade 37, which has been clamped and sprung into a concave-convex shape between the movable and stationary members.

en positionin a blade it is initially in a fiat condition and is laid on the stationary member with its recesses, holes or openings 39, in a position to receive the pins 19. When the movable member is swun to the closed position the two semi-cireularlu s and 32, are sufiiciently close to enable their small ends to enter the tapered or cone socket 14. The stem 12, is then rotated on the plug 23, until the cone socket draws the lugs together which bri s the convex and concave surfaces into bear 11 contact at opposite sides of the blade 37, an hows the latter as it is securely clamped in place.

Having described our invention, we claim,-

In a razor the combination with a handle having in one end a cone-shaped socket with a screw-threaded bore extending inwardly from the smaller end of said socket, of two blade-clamping members, one having a conconvex face,the member with the concave face being longer than that having the convex face and the longer portion formed into a stem with exterior screw-threads to enter the bore in the handle while the opposite ends of said two members are permanently hinged together so that when the stem is artially unscrewed from the handle-bore t e shorter member ma be swun away without becoming deta ad from t e lon er member, the concave side of the one mem er having pins rojectin? therefrom to ermita razor-bla e to be laid on the edges 0 said member and over the pins while the convex member is provided with sockets which will be brought into regturcs.

BERNARD T'EVVELOlV. SOLOMON TEVVELOVV.

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