US1587358A - Razor-blade knife - Google Patents

Description

June 1 1926. 1,587,358 F. F. ARNOLD El AL RAZOR BLADE KNIFE Filed Oct. 9, 1925 WITNESSES I IFVE TPRfi w;

ATTORNEYS Patented J one 1 .1926.

UNITED STATES 1,587,358 PATENT o FlcE.

FRANK F. ARNOLD AND CONRAD KESTEL, OF NEW YORK, N. Y.

RAZOR-BLADE KNIFE.

Application filed. October 9, 1925. Serial No. 61,572.

With these and other objects in view, the

invention consists in certain novel features of construction and combinations and ar-.

rangements of parts which will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a planview ofour improved device;

Figure 2 is a view in longitudinal section on the line 22 of Figure 1;

Figure 8 is a view in side elevation of the blade holder, showing the same in expanded position. f

Our improved device comprises two separable parts, namely, a blade holder A and handle B, the blade holder adapted to clamp and securely hold a safety razor blade C.

The blade holder is composed of a single piece of metal having sufiicient resiliency, and which is formed as follows: The strip or piece forming the blade holder is bent intermediate its ends, forming a loop 1 which is desirableto give the necessary resiliency or spring action to the blade holder. From 1 the loop 1 the piece or stri is flat for the desired length, forming lade clamping plates 2 and 3, and from the plates 2-and 3 the ends of the strip or piece are curved transversely, as shown at 4, while the extremities of the strip or piece are laterally offset, forming lateralprojections 5, 5.

- One of the blade clamping plates 2', is made with openings 6, and projections7 are formed on theother blade clamping plate 3, so that when the razor blade C is inserted between these- plates 2 and 3 and the latter are forced toward each other, the projections 7 will narily ound in a razor blade and also through the openings 6 in the opposite plate to hold the blade securely in p ace.

roject through the openings ordi- The handle B is cylindrical in form and preferably constitutes a length of tubular metal, although of course it may be of any su itable material. This handle B is formed with alined openings 8, 8 in its opposite walls which are so located as'to receive the offset portions *5, 5 of the blade clamp A. The transversely curved portions 4, 4 of member A are of such size as to fit within the tubular handle B when they are. forced toward each other, asindicated clearly in Figure 2. r i

The operation is as follows:

When the blade C. is inserted in position between the plates 2 and 3, the member A is compressed; in other words, the sections or portions 4, 4 are forced toward each other and are held inthis position and inserted into the handle B until the laterally offset portions 5, 5 reach the openings 8, 8, when i such portions 5 will spring into the openings and serve to hold the members A and B securely coupled together.

To uncouple the members, the thumb and finger may be utilized to compress the laterally offset portions 5, 5 inwardly, when the blade clamp can be removed from the handle.

A strong pull on the blade clamp or holder relative to the handle will'also effect a release of the parts.

Various slight changes and alterations might be made in the general form of the parts described without departing from our invention, and hence we do not limit ourselves to the precise details set forth but consider ourselves at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims. We claim:

1. A razor blade knife, including a tubular handle and a blade holder consisting of a single member bent intermediate its ends and forming blade clamping plates adjacent the intermediate bent portion, the extremities of said member being curved transversely and adapted to fit within the tubular han-' dle, said handle havingopenings in its opposite walls, and laterally offset portions on the blade holder adapted to spring into said openings and hold the parts coupled together. r

2. A razor blade knife, including a tubularhandle and a blade holder consisting of a sin le member bent intermediate its ends and orming blade clamping plates ad aon the blade holder ada ted to spring into said openings and hold t e parts coupled together, one of said blade engaging plates having openings therein, and projections on the other of said blade engaging plates 10 adapted to project through openings in the blade and into the openings of the firstmen tioned plate.

FRANK F. ARNOLD. CONRAD KESTEL.

Images