US245037A - Buck-saw frame - Google Patents

Description

(No Model.) I x Q I G. P, WHITMAN.

' BUCK SAW FRAME. Patented Aug. 2, 1881.

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jffww? UNITED STATES PATENT OFFICE.

I CHARLES P. WHITMAN, OF ATHOL, MASSACHUSETTS.

BUCK-SAW FRAME.

SPECIFICATION forming part of Letters Patent No. 245,037, dated August 2, 1881.

Application filed June .27, 1881. (No model.)

' citizen of the United States, residing at Athol,

in the county of Worcester and State of Massachusetts, haveinvented certain new and useful Improvements in Saw-Frames, and I do hereby-declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a side elevation of my invention, and Fig. 2 a detail View, in section, of the socket-joint. Fig. 3 is a perspective view, in detail, of the metal spool.

The present invention has relation to certain new and useful improvementsin that class of hand-saws known as buck-saws, and the object thereofis to construct the frame of the saw whereby the blade connected to the frame can be tightened at pleasure and in a simple and effective manner, rendering the saw more durable and lasting and capable of doing its work much more effectively. These objects I attain by the construction substantially as shown in the drawings, and hereinafter described. V 1

In the accompanying drawings, A represents the saw-blade, connected in the usual manner to the arms B G, which form together the ordinary saw-frame, the arm 0 extending below the blade to form the usual handle of the saw. The upper ends of the arms B 0 have connected to them the ordinary tightening-rods, a, screw-threaded at their inner ends to receive a screw-coupling nut, 11. One end of a brace, I), is connected to the arm() by a screw-threaded rod, 0, which enters the brace and the arm,

- also a second rod, as shown in dotted lines,

entering the end of the brace and passing into the arm, thus forming a strong immovable joint.

A cast-metal spool, E, is formed at each end with annular rims d, and has a pin, 0, of sufiicient length to enter a considerable distance .into the arm B, said arm being cut away or having a semicircular recess, f, to receive a portion of the body of the spool E, the other portion of the body beingseated in a semicircularrecess, g, in the end of the brace D. When the end of the brace and arm B come together they will encircle the body of the spool E, the rims d lying against the sides thereof, which form a substantial joint, possessing great strength and durability, anda socket-joint that will enable the bar or arm B to turn as the frame is being tightened.

By the employment of the spool E the usual plates and other connections used for the purpose are entirely dispensed with, thereby enabling the saw to be manfactured at a greatly reduced price, in addition to obtaining increased strength and durability, the saw-blade always being held in perfect line.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a buck-saw frame, the combination, with the arm B and brace D, having respectively the recesses f g, of the metal spool E with rims at and pin 0, substantially as and for the'purpose set forth.

2. A saw-frame consisting of the arms B O, screw-rods a, and screw nut b, brace D, connected to the arm 0 by screw-rod c, and at its opposite end to the arm B by metal spool E, substantially as and for the purpose specified.

I11 testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

CHARLES I. WHITMAN.

Witnesses E. 0. WILsON, S. H. OoLBURN.

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