US628775A

US628775A - Cane-knife.

Info

Publication number: US628775A
Application number: US71316799A
Authority: US
Inventors: Henry Disston
Original assignee: Henry Disston & Sons Inc
Current assignee: Henry Disston & Sons Inc
Priority date: 1899-04-15
Filing date: 1899-04-15
Publication date: 1899-07-11
Anticipated expiration: 1916-07-11

Description

No. 628,775. Patented July Il, |399.

H. DISSTDN.

CANE KNIFE.

`App1ication led Apr. 15, 18994) Nu Model.) Y C HENRY DISSTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE HENRY DISSTON la SONS, INCORPORATED, OF SAME PLACE.

CANE-KNIFE.

SPECIFICATION forming part of Letters Patent No. 628,77 5, dated July 11, 1899.

Application filed April 15, 1899.

To @ZZ whom it may concern:

Be it known that I, HENRY DISSTON, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Cane-Knives, of which the following is a specification.

The object of my invention is to make a light and substantial cane-knife. This object I attain in the following manner, reference being had to the accompanying drawings, in Which- Figure l is a side view of a cane-knife illustrating my invention. Fig. 2 is a sectional view on the line 2 2, Fig. l. Fig. 3 is a sectional View on the line 3 3, Fig. l; and Fig. 4 is a view of a modification.

It will be understood that while my invention is shown as applied to the blade of a cane-knife it can be applied to the blade of a corn-knife or to any blade which is required to be light and strong at the point Where it ljoins the handle.

The light cane-knives as now made are necessarily Weak at the point where the blade enters the handle, and if in using the knife the blade is bent the bend takes place directly at the handle and is not distributed throughouttheblade. Consequentlythecoustant bending of the blade Will in a short time break the blade off at the handle, making the knife useless, and if the blade is made heavy enough for this purpose it is too heavy to be handled by women and children.

I overcome the difficulty by makinga caneknife in the following manner, reference being had to the drawings, in which A is the blade, which is made of thin steel and which is reduced in width at the point where it joins the handle B. I form in the blade a series of corrugations d of any depth desired at the point where the blade enters the handle. I preferably extend these corrugations some distance beyond the end of the handle, as shown in` Fig. 1, and preferably some distance Within the handle, as shown in Fig. 2, so as to stiffen the blade at this point, but

leaving the blade flat beyond the corrugations, so that in case the blade is bent it will be bent, say, about the line a: w, Fig. l, where its width is increased and where there are no Serial No. 713,167. (No model.)

sharp edges which will limit the bend-such, for instance, as the end of the handle. n

l have found that a blade formed as shown can be made very light and will withstand considerable rough usage and will last as long as a blade made of much heavier material.

In the present instance the handle B has two sections b b, formed by a saw-kerf, and the blade is forced between the sections and secured therein by the rivets c. The handle may be made in any suitable manner, and other means of fastening the blade may be resorted to without departing from the main feature of my invention.

When the corrugations are shallow, as shown in Fig. 3, the handle need not be shaped to receive the corrugations; but if the corrugations are deep, as shown in Fig. 4, I preferably corrugate the sections b b of the blade; but I iind in practice that a very shal- Va series of short longitudinal corrugations at the point where it is united to a handle, substantially as described.

2. The combination in a knife, of a vflat blade, ahandle secured to the blade, said blade having a series of corrugations extending beyond the handle and ext-ending Within the handle, substantially as and for the purpose set forth.

3. The combination in a cane-knife, of a flat blade of a'n even thickness throughout and reduced in width at the point Where it joins the handle, a handle secured to the blade, said blade having a series of corrugations extending beyond the end of the handle and extending Within the handle, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. y l

HENRY DISSTON.

Witnesses:

WILL. A. BARR, Jos. H. KLEIN.