US975535A - Safety-razor. - Google Patents

Description

L. KNASTBR.

SAFETY RAZOR. APPLICATION FILED JAN. A19. 1910.

975,535; l Patented Nov. 15, 1910.

LEON KNASTER, OF HOBOKEN, NEW JERSEY.

SAFETY-Razon.

975,535. VSpecification of Letters Patent. l Patented Nov. i5, i910.

i Application filed-January 19, 1910. Serial No. 538,871.

To all wi'mm it may concern:

Be it known that l, Lnox Knns'rnn, a subject of the Czar of Russia, residing` at Hoboken, in the county of Hudson and State oit, New Jersey, have invented certain new and useful, Iliil'novenients in Safety-Razors, of which the following* is a specification.

This invention comprises certain novel improvements in the construct-ion of the safety razor eovered by my Letters Patent No. 935,032, dated September 28, 1909.

The essential object of the present improvements is to provide a razor of the type described in the above Letters Patent, but in posite directions and it which the specific construction of the parts the tooi is modified to aiord certain practical advantages that will appear more -fullyhereinafter.

' For a full understanding of this invention and the merits thereof, reference is to be had to thev accompanying drawings, in Whichl Figure 1 is a perspective view of a razor embodying` the essential features ot the invention; Fig. 2 is a vertical longitudinal section; Fig. 3 is a plan View of the head with blades removed; Fie.' 4l is a longitudinal section of the key. and Fig". 5 is a section y on the line 5--5 of Fig. 3.

'Throughout the following detail description, and on the several figures o the drawings, similar parts are referred to by like reference characters.

A safety razor embodying the improve; ments Aof this invention comprises a suitable handle l, an end of which is bifurcated and the bifurcated port-ions formed so as to re-l ceive and grip' the head 2 of the device. Said head' 2 consists of a central body portion and oppositely extending' blade supporting members 3 on `the surfaces ofwhich the blades 4 are supported. The blade sup porting members 3 preferably incline in opis contemplated that the inclination of said members Jmay be varied according as is found best to facilitate the use of theinvention in shaving. At their outer edges the blade supporting members 3 are formed with a plurality on curved guards 5' and the opposite end portions of the said members are formed with blade guides 6 which assistin positioning,`

and holding the blades when adjusted for shaving. The guides 6 constitutelend flanges on the members 3 and which flanges are bent upwardly so as to overlap said members 3,

. vthe lower extremities of the flanges being' extended and bent downwardly beneath the 4blade supporting,` members, as shown at 6a l and thus provide stops limiting the downward movement of the blades when the latter are placed on the blade supporting` surfaces'.

The blades 4 are locked from displacement from the supporting members 3 vby means of a locking' key 7, somewhat similar to that describedin my previous patent, said key consisting of a body portion made from spring metal which isrolled about a core 8', the .opposite ends of the metal being curved outwardly and downwardly to form the locking clips 9,`adapted to overstand the upper edges ot' the blades il and hold the latter. in place by direct pressure thereagainst. n

The head 2 of the razor 1s made trom a piece of sheet metal. the central portion ot v which is rolled to form the somewhat circular-shaped body .to which the handle 1 is secured, the metal being then bent ontwardly and downwardly from the bodyT to provide the oppositely.arranged 'blade supporting members 5% yhereinbefore described. The space inclosed by the body portion or" the head 2 constitutes a longitudinal seat for the key 7 and said seat tapers slightly toward one end of the head. in like manner the key 'T is slightly tapering` so that as it is moved or slid longitudinally into the seat 2a aforesaid from the larger end oi' the latter, the key will bind and thus be held rmly from displacement. As the key 7 is forced into place by the slight pressure required and which is exerted against a suitable finger piece ,10, one of which is provided vat each end ot thev core 8, the clips.9 engage over the upper ends of the blades l and rmly hold the same against the blade sup` In Fi 2 of theV drawings,` one of thebla-des 4 1s omitted to bring out more clearly the construction of 'the head, but it will be understood that the clips 9, being made from yspring metal are adapted to yield upwardly as they are engaged with the blades and in the operationeof assembling the parts of the r'azor for use. The frictional engagement ot' the key 7 in its seat 2a and the engagement of the clips 9 withI the blades 4, prevents .likelihood of accidental displacement of the key.

It will be apparent from the foregoing v that the head and locking key of the razor the latter having a reduced body portion for this purpose. The/finger pieces l facilitate the operation ofintroducing the key 7 into its seat and removing it therefrom.

The handle l is detachable from the head 2 by reason of the provision of a screw pin 11 adapted to engage thehead and-carried by the handle, said pin being removable by introducing a suitable tool in the hollovv1 portion of the handle.

The blade locking key above described may be inserted into the seat in the head of the razor from either end ofsaid seat and by reason of the flexibility of the metal from which the head ismade. Furthermore, the clips 9 overstand the blades 4 in a. manner as to not only hold the same. in position but said clips permit of use of small blades and afford ext-ra strength when the latter are used, making the action of therazor very effective Whether small or large blades are employed. The curving of the guards 5 is advantageous in that the razor slides smoothly over 4thc face in the shaving operation.

Having thus fully described my invention` what is claimed as newfis:

l.. A safety razor comprising ahead consisting of a piece of .metal bent upon itself between its ends to form a `longitudinal seat, having vits ends extended in opposite. directions from the seat to constitute blade supporting members, blades thereon, said blade supporting members being` provided lwith means for positioning the blade thereon, a key consist-ing of a piece of metal bent between' its ends to provide a body movable in the seat of the head, and the ends of the key being extended to form clips toiengage the blades a'nd prevent displacementthereof.

:2. A safety razor comprising a blade supporting head made from a piece of sheet metal folded to form a longitudinal seat.

and having an end portion extei'idingfr orhiy the seat and forming a blade supporting/- member, a blade thereon, said blade supporting member being provided With means/ in opposite directions from the head to form blade supporting members, blades carried by 'said members, guides at the ends of the blade supporting members for positioning the blades thereon, and a key slidable longitudinally in the seat of the head and consistl ing of a piece of metal folded between its ends to provide a body portion movable in the seat., the ends of the key being curved outwardly to provide oppositely extending clips for engagement with theblades to preventI displacement there/.ifi`

4l. As a new article of manufacture, a safety razor comprising a head made from a single piece f sheet metal, bent centrally thereof to prtfi-ilde a hollow tapering seat and the opposite ends of the metal being projected in opposite directions to form blade supporting members, .said blade supporting members having end flanges constituting guides and also having guards at 'their outer edges and a locking key for the blades consisting of a core provided with finger pieces at its opposite ends and a piece of sheet metal bent about the core and having its ends bent outwardly in opposite directions to form clips overstanding the blades and preventing displacement thereof. In testimony whereof I affix' my signature in presence of two witnesses.

LEON KNASTER. Witnesses ADOLPH GRIUNDER, AnoLrI-r MUssoLINol

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