US308703A

US308703A - Fret-saw handle

Info

Publication number: US308703A
Authority: US
Publication date: 1884-12-02
Anticipated expiration: 1901-12-02

Description

(No Model.)

O. RICHARDSON.

FRET SAW HANDLE.

Patented Dec. Z, 18-84.

an 507", dwaww m a/wdm i NITED STATES PATENT Farce.

CHRISTOPHER RICHARDSON, OF NEWARK, NEW JERSEY.

FRET-SAW HANDLE.

SPECIFICATION forming part of Letters Patent No. 308,703, dated December 2, 1884.

Application filed September 15, 1884. (No model.) i

To all whom it may concern:

Be it known that I, CHRISTOPHER RICH- ARDSON, a citizen of the United States, residing in Newark, Essex county, New Jersey, have invented certain new and useful Improvements in Fret-Saw Handles, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention consists in the combination, with a flattened castiron handle, of a longitudinal slot adapted to receive the saw-blade and to hold the same projecting from the end of the handle, a screw for holding the sawblade in such slot, and a transverse slot adapted to hold the saw-blade across the handle and in contact with the same fasteningscrew.

This invention consists in a modification of the cast-iron fret-saw handles hitherto made, whereby the same is adapted to hold the saw either across or in line with the handle in contact with the same clamping-screw; and it also consists in a grooved opening and crossbar formed in the handle for strengthening the same and for partially inelosing the blade.

In the drawings, Figure 1 represents the handle with the saw-blade projecting longitudinally. 2 is an edge view of the same with the head of the handle adjacent to the fastening-screw in section, and Fig. 3 rep resents the handle with the same parts in section and the saw-blade projecting from the handle transversely.

A is the handle, the head of which is pro vided with a longitudinal slot, B, and a transverse slot, 0, a setscrew, D, being tapped into the side of the head at the intersection of the two slots, so as to clamp the saw-blade with equal effect when inserted in either slot.

By this construction the tool may be used with greater convenience in many contracted locations where it is necessary to hold the blade close to some interfering object. The material of the handle affords ample strength around the slots, as is shown in the sectional view in Fig. 3, the head of the handle 6X-' the butt of the saw-blade; but I do not use any such construction in my handle, and do not find ,it necessary in practice. I therefore disclaim any such construction, but have devised a superior method of protecting the operators hand from contact with the end and corners of the saw blade when pushed partly down in the handle, while I retain the open frame-like form of handle, which is lighter to handle and easier to east than if made as a hollow shell entirely inclosing the blade.

My construction consists in combining the open slot E, formed through the handle just below the head, with a solid cross-bar, F, to bind the sides of the handle together and prevent breakage, and in forming the edges of the slot E with grooves g, which inclose the edges of the saw-blade when pushed below the head. By the use of the grooves'the blade is effectually prevented from bending sidewise under the pressure of the screw, and the solid cross-bar is much less liable to break than the slotted ones heretofore used, while it does not prevent the retraction of the blade to any extent required in use;-

The use of a solid crossbar, by strengtheningthe sides of the skeleton handles, also enables me to make the entire handle lighter.

I am aware of the state of the art shown in United States Patents Nos. 216,800, June 24,

1879, 194,659, August 28, 1877, and 183,805, October 31, 1876, and that I cannot claim any other construction than that specifically set forth herein.

Having thus distinguished my invention from others. I claim as follows:

' The flattened cast -iron sawhandle constructed with the slot B lengthwise of the handle, and the slot 0 across its end at right an gles to the longitudinal slot, and the fasteningscrew D, inserted in the side of the handle at the intersection of the said slots, and adapted to press upon the side of the'saw-blade when inserted in either of the said slots, as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CHRISTOPHER RICHARDSON.

\Vitnesses: 1

Trros. S. CRANE, L. LEE.