US1799517A - Razor-blade-retaining element - Google Patents

Description

April 7, 1931. J. KAUFMAN 1,799,517

RAZOR BLADE RETAINING ELEMENT Filed April 22, 1926 INVENTOR ATTORN EY Patented Apr. 7, 1931 STATES JOSEPH KAUFMAN, on NEW YORK, a. Y., Ass enon 'ro AMERICAN SAFETY RAZOR con PORATION, or NEW YORK, N. Y: AcoRroRArro or VIRGINIA a a nAzoR-BLAnE-RnrnmmG ELEMENT Application filed April 22, 1926. Serial in 103,677.

' connection with safety razors of the Ever- Ready type. I

In razors of this type, it is customary to utilize a blade in connection with a holding device wherein certain guides and stops are provided for removably associating the blade with the holder in predetermined positions.

More particularly, in the holder of the typeto tion, I am enabled to facihtate shipment. of

which this invention has particular reference, it is customary to provide stops at the forward end of the holder against which the forward or cutting edge of the blade 'may rest, and to provide suitable means for exerting a forward pressure upon the rear edge of the blade so as to hold the forward edge firmly against the stops. With this purpose in view, it has been customary to provide the rear edge of the blade with aretaining or re inforcing portion against which the forward- 1y pressing means may operate.

In view of the foregoing premises, it is one object of the presentinvention to provide a retaining or reinforcing portion of the character referred to which will be removably applicable to an edge of a blade, whereby the necessity for providing each individual blade with such a portion is eliminated, and where- V for interchangeable use with double-edged 7 blades, so that only one edge is-available for .cuttingwpurposes' While the other edge is sheathed and protected, it is a feature of the invention to provide the reinforcing portion by a single one of such reinforcing portions may be selectively or successively utilized with any desired number of blades. In this manner, I attain the result of being able to use the retainer with a sharpened edge so that the employment of this type of retainer does not prevent the practical employment of a blade sharpened on its opposide edges.

Another object of my invention is to provide a retaining or reinforcing portion of this character which does not contact with the effective portion of a cutting edge, where it is associated with a cutting edge. In accordance with this phase of the invention, it is possible for me to utilize double edged blades of the so-called Gillette type with blade holders or razors of'the type heretofore known as the Ever-Ready type and more specifically. described hereinabove.

the protected edge.

Bearing this phase of the invention in mind, as well as its employmentwith the type of'razorre'ferred to, a preferred embodiment of the invention contemplates the contacting of the retaining or reinforcing portion with only the extreme ends of an" edge of theblade,

these extreme ends being normallyfunavail able for cutting purposes even whenthis edge isemployed for shaving purposes because of the engagement of these ends with the 'usual stops provided on the blade holder.

According to another-phase of the invenblades, because I may apply the removable Regardless of the particular embodiment, I 'it lSJZI/C EBatUI'G of the invention to provide. the

removable reinforcing portion with means for permitting -association thereof with the blade in a predetermined positional relation,

whereby the rear portion of the assembled blade is 'provided'with a predetermined thickness, and whereby the length from I front to rear of the assembled blade is of a predetermined magnitude, thereby adapting Where the reinforcing 'portion designed with means for enclosing said protected edgewithin the outermost contour of the applied sheath, thereby permitting utilization of the assembled blades 'inafcustom'ary manner without causingdamage, or even contact, to

For the achievement of theforegoing objects and such otherobjects asv may hereinafter appear Zor be pointed out, Ihave illustrated several embodimentsof the invention in the accompanying drawings, wherein Figure 1 shows my adaptor applied to a double edge blade, and v Figure 2 shows in perspective on an enrected elements being substantially in the larged scale one side of the adaptor.

In Figure 1 of the drawing, I have illustrated the employment of a retaining member 18 which serves as an adaptor for the blade let-to permit said blade with theadaptor to serve-with that type of razor in which the blade is engaged at the rear and advanced so as to bring the active shaving edge against thefront stops of such type-razor. In this embodiment, the blade- 14 is of the double edge type and is provided along its opposite si e edges with spaced notches 29. Two such notches are on each side edge and the notches are symmetrically positioned with reference to the opposed shaving edges-for reasons that will beunderstood.

The adaptor or retaining member 18 is-in theform of a member bent midway of its length to provide K two opposed Walls and: a channel therebetween withinwhich channel one edge of the blade is received and protected as well as reinforced; These slots begin at a point adjacent the-two walls: of the portions or fingers 30, which are: disconnected from the wall fromwhichthey are formed except at the rear.. These fingers =30 extend plane of the side edges of the adaptor.

In Witness whereof, I have hereunto signed ril, 1926.

my name this 9th generallyin the plane of the wall and areipr'oivided at the free ends with the downwardly and'inwardly'directed tongue elementsfi'l, all

as; shown clearly in Fig;- 63 The: tongues 30 are imparted a: certain resiliencewhioh tends to make the ton'gue- 31 extend across the gap between the opposite: sides of the retaining portion. When the: blade is inserted; each tongue 30 must be slightlydiistort'ed to permit passage. of the-blade past the tabs'31'; and after the blade hasbeen' inserted a predetermined amount, the resilience of eachtongue will cause the tab 8'1'to engage-with a' notch29 and thereby positively engage and-hold the blade in predetermined position. This en'- gugernent will prevent the interposed cutting edge of the blade from contacting with the rear bent-over edge of the retainingmember.

In accordancewith this embodiment, it'will be obvious that the blade may be utilized if desirable, with a holder or razor of a-difierent 7 type wherein stops 12 are -absent,--andfwherein other means have beenprovided' for predetermining I and positioning. the assoclation of'the bladewith the holder.

I'claim 1-? An adaptor for a'blade of the wafer type comprising two super-impose'd' members associatedto'g'ether along one end and free'of each other'at their opposite end; fingers extending from a point adj acent the end where the members are joined and extendingforwardly" in the-plane of one of the members,

said fingers'each having an inwardly-directed element as its terminahend, said inwardly-"di da J ofA

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