US1336969A - Safety-razor - Google Patents

Description

B. LA ROCK.

SAFETY RAZOR. APPLICATION FILED FEB. 15, 1918- RENEWED MAR. B, 1920.

Patented Apr. 13, 1920.

INVENVTOR.

Bar/74y 403006:

ATTORNEY UNITED STATES PATENT OFFICE.

BARNEY LA ROCK, or. KAN$AS crrY, MISSOURI.

SAFETY-RAZOR.

Specification of Letters Patent. Patented. Apr. 13,1920- Application filed February 15, 1918, Serial No. 217,451. Renewed March 8, 1920. Serial No. 364,250.

To all whom it may concern:

Be it known that I, BARNEY LA ROCK, a

citizen of the United States, residing at Kansas City, in the county of Jackson and State of Mlssournhave invented certain new and useful Improvements in Safety-Razors:

and I do declarethe following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to safety razors and more particularly to a razor of that type wherein a thin blade is removably attached to a handle bar and protected by a guard while in use; the guard being interchangeable on the blade for either right or left hand use and the bla de removable from the bar bodying my improvements. a part of the guard being broken away to better illustrate {)he attachment of the blade to the handle Fig. II is an edge view of the handle bar with the blade and guard removed to better illustrate the spring effect of the bar members.

Fig. III is a reverse view of the parts shown in Fi II, illustrating the wedge shape of the ar members.

Fig. IV is a detail view of my improved type of blade. as it appears before the application of the attaching studs.

Fig. V is an enlarged detail perspective of a. stud whereby the'blade is attached to the handle bar.

Fig. VI, islasection on the line VI-VI, Fig. IV, showing the blade with the stud in place. i

Fig. Vll is an enlarged section on the line VH-VH '1.

Fig. VIII is a side View of the handle bar with the members spread to better illustrate the sockets for receiving the blade the blade in looking position.

Referringmore in detail to the drawings:

The handle 1 which may be of a type common to razors of this kind, preferably comprises the strips 2-3, spaced at one end by a block 4 and at the opposite end by the handle bar 5, which is pivotally mounted between the strips on the pin 6.

The bar 5 comprises the separate members 8-9 mounted adjacent their ends between the strips 2-3 and having the usual projection 10 provided with a finger socket 11 whereby the bar may be manipulated in the customary manner.

Each of the bar members 89 is wedgeshape in cross section and provided with a boss 12 at the pivot position, which is tapered to form a bearing face parallel with the inner face of the handle members 2' for the purpose of forming a flush bearing for the bar between the handle strips and thereby compensate for the tapering of the bar members caused by the wedge construction. The bar members 8-9 ate sprung adjacent their pivotal point to eifect automatic spacing thereof when unrestrained in order to free the blade when thelatter is moved to unlock the bar members as presently described.

Each of the bar members comprise a narrow. rectangular, outer portion provided with alining slots let. each of which has at its inner end a countersunk mouth 15 for guiding a locking stud on the blade to position in the slot ;the outer end of the slot having an outwardly facing shoulder 16 on which the head of the stud is adapted to seat to retain the stud and blade in place. v

The blade 17 is of ordinary thin metal construction. having a cutting edge and provided. adjacent its opposite ends with slots 18. each having a circular aperture 19 at the end and a relatively large circular aperture '20 at the opposite end. 21 designates studs. each comprising a neck 22, having a central V groove 23 and heads 24, the heads being of such diameter that they will pass freely through the larger blade apertures 20. The studs 21 are adapted for comprises the blade member having a stud at each end comprising heads 24 which are spaced sufficiently from the faces of the blade to project into the locking slots of the razor handlebar as presently described.

The guard comprises a body. portion 26 troughed to receive the ends of the handle bar members when the latter are closed and a comb lip 27 adapted to lie along the edge of a blade held by the bar and project therebeyond to offer the protection for which the guard is intended.

' Assuming the handle and blade parts to be constructed and'assembled as described,

when it is desired to ap )1) a blade to the handle bar the bar members are spaced as shown in Fig. VIII. The blade is then laid on the innerface of one of the bar members with the heads of the studs projecting into the mouths 15 in the bar, and with the blade so positioned that the other bar member may be moved over the opposite face of the blade and pressed on to the blade so that the opposite ends of the studs are projected into mouths 15 of the slots in the overlying bar member.

With the parts so arranged, the bar members are pressed against the blade and the blade moved outwardly along the bar to project th'e heads of the studs over the shoulders '16 in the bar slots let, this projec-' tion of the studs over the shoulders locking the bar' members to prevent their again springing apart when the pressure is re-.

moved. The blade is then held securely between the handlebar members and when the guard is placedo 'er the end of the bar and along the blade, the blade may be used in the customary manner.

If it should be desired to hone or strop the blade the guard may be removed and replaced as desired. When the blade is to be replaced by a fresh one, the guard is removed, the blade moved inwardly along the bars until the stud heads again pass into shoulders 16 and the bar members are freed so that they automatically separate under their spring tension, the blade remaining in contact with one of the bar members while the other member is-sutliciently spaced from the blade to permit it to pivot independently thereof and thereby release the blade so'it may be readily removed from the other bar member. The fresh blade may be then applied to the handle bar as heretofore described.

Having thus described my invention what I claim as new therein, and desire to secure by Letters-Patent, is I 1. A razor comprising clamping bars, a blade receivable between them, and bar engaging means on the blade and movable therewith in one direction to draw the bars into clamping position.

2A razor comprising clamping bars, a

blade receivable between them, outstanding headed studs on the blade, and projecting through the bars, the studs being movable with the blade in one direction to draw the bars into clamping position.

3. A razor comprising bars having key hole slots, a blade receivable between them, headed studs on the blade and projecting through the keyhole slots, the studs being movable with the blade in one direction to draw the bars into clamping position.

4. A razor comprising a handle, clamping-'- bars on-the handle having a normal tends ency to spring apart, a blade and bar engaging means on the blade and movable therewith in one direction to drawvthe bars into clamping position.

5. A razor comprising two parallel clamping bars, a blade receivable between them, and a clamp member extending through the bars and blade and movable longitudinally of the bars with the blade to draw the bars into a clamping position.

6. A razor comprising parallel clamping bars and a blade receivable between them, the bars and blade having longitudinal slots and clamping devices extending through the bars and blade and movable lengthwise thereof to draw the bars into clamping position.

In testimony whereof I afiix my signature.

BARNEY LA ROCK.

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