US558466A

US558466A - John bowles

Info

Publication number: US558466A
Authority: US
Publication date: 1896-04-14
Anticipated expiration: 1913-04-14

Description

(No Model.)

J. BOWLES. 'SAW.

No. 558,466. Patented Apr. 14, 1896.

WW I a UNITED STATES PATENT OFFICE.

JOHN BOWLES, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF IO CORNELIUS S. MITCHILL, OF NEW YORK, N. Y.

sAw.

SPECIFICATION forming part of Letters Patent No. 558,466, dated April 14, 1896. A li ti fil d June 18, 1895. Serial No. 558,208. (No model.)

To all whom it may concern:

Be it known that I, JOHN BowLEs, a citizen of the United States, residing in the city of \Vashington, District of Columbia, have invented certain new and useful Improvements in Saws; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention refers to that class of saws the forward edges of the teeth of which are beveled or sharpened and set laterally beyond the plane of the saw, so as to smooth or plane the cut surfaces of the wood in the process of sawing.

My present improvement consists of a novel formation of the cutting and planing edge of the tooth, whereby the durability of said edge is increased, its efficiency increased, and a smoother finish given to the work.

In order that my invention may be clearly ascertained, I will first describe in detail the mode in which I practice my invention, and then point out the inventionvin the claim.

Reference is to be had to the accompanying drawings, forming part of this specification, in which Figure 1 represents part of a planing circular saw embodying my invention. Fig. 2 is a cross-sectional view of the same on the line 22-, Fig. 1. Fig. 3 is an edge View.

The forward edges A of the teeth B of the saw illustrated are straight throughout and radiate from the center of the saw. I bevel and sharpen the edges A of alternate teeth B on opposite sides a uniform width throughout, as shown, and then, as by means of a suitable saw-set, set the entire length of each beveled edge A laterally beyond the corresponding face of the sawto the side opposite the bevel. In such a manner the outer portion 40 of said edge will be parallel to the plane of the saw and the inner portion of the said edge curve inward gradually toward the plane of the saw, as shown in Fig. 2. By this preferred construction the marking of the sawed surfaces by the extremities of the planing edgeis prevented and a much smoother finish obtained, as before stated.

It is to be particularly noted that the extreme edge only of the outset beveled-edge 5o portion is set parallel to the plane of the same, the body of said outset portion extending inward to the side of the saw, so that no considerable portion of said outset portion will rule against the cut surfaces of the wood.

I claim A planing-saw each of whose teeth has its forward edge portion beveled and sharpened and set laterally beyond and inclined from the side of the saw, the extreme edge only of 60 said outset beveled-edge portion being again set inward parallel with the plane of the saw.

In witness whereof I have hereunto set my hand, this 13th day of July, 1894, at the city of New York. 1

JOHN BOVVLES.

In presence of- J. GULBERT PALMER, CLARENCE L. BURGER.