US201298A - Improvement in crosscut-saw handles - Google Patents

Description

R. 1:". SPRAGUE.V Crosscut-Saw Handle.

Patented March I2, |878..

Inventor.'

` itylv.

Per.

N.FETERS. FNOTO-LITHOGRAPHER. WASHINGTON. Dv C.-

UNITED STATES.- PATENT OEEIcE.

RUFUS F. SPRAGUE, OF GREENVILLE, MICHIGAN.

IMPROVEMENT IN` CROSSCUT-SAW HANDLES.

Specification forming part of Letters Patent No. 201,298, dated March 12, 1878; application iiled December 12, 1 "7.

` To all whom 'it may concern:

' part of this speoication, and in-which- Figure l is a side elevation of my improved handle applied to a crosscut-saw, and Fig. 2 is a longitudinal section of the same.

Similar letters of reference indicate corresponding parts in both the figures.

My invention relates to adjustable 'sawhandles 5 and it consists in an improved construct-ion and combination of parts, substantially as hereinafter more fully described, and pointed out in the claim.

In the drawings, C is the handle, which is made of wood or metal, and hollow inside. The lower part of the handle is tenoned off and inserted into a socket-piece or ferrule, E, having an annular' shoulder, e, and smooth cylindrical section, j', the end or lower part of which forms a screw-threaded section, E' of somewhat smaller diameter than the upper smooth part.

Into the upper end of the tubular handle C is inserted a sleeve or collar, B, forming a seat for the cap or button A, which is secured upon the top or upper end of rod H, so as to turn freely upon the collar B. The socket-piece E is inserted into a sleeve, F, the upper part of which is smooth, and slides upon the cylin drical smooth part of ferrule E,while the lower part has a female screw-thread, G', which takes with the male screw-thread G of the ferrule E E'.

The closed end or bottom K of sleeve F has a notch or groove, J, and also a perforation, i, through which passes the lower end of rod H, the lower part of which is cut away, and the end of it bent to form a hook, H', which faces or is directly underthe notch or seat J, so as to form a clamp, J J', the width of which may be ad j usted to fit any saw-blade by simply turning the tubular handle C, and thereby working sleeve F up or down, according to the direction in which it is turned. The insertion of the saw-blade into this clamp is facilitated by beveling the under side or bottom K of sleeve F, as shown in Fig. 2, so as to form a slope or incline, which will guide the upper edge of the blade into notch or seat J. From the foregoing description the operation of my improved saw-handle will be readily understood. The saw-blade having been inserted sidewise into the clamp formed by the hook H and groove or seat J, this is tightened down upon the upper edge of the blade by turning handle C, the upper smooth part of the shouldered ferrule E serving as a guide for the sleeve F, so as to cause an easy and even up-and-down motion of the latter, which Will cause seat J to bear evenly against the edge of the blade, thus securing this rmly in position.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- The improved adjustable saw-handle herein shown and described, consisting of the following parts or elements in combination, viz: the tubular handle C, having shouldered ferrule E E', sleeve F, having screw-thread G' at its lower end, and terminating in the beveled button K, having seat J, and rod H, having button A and hook H', substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

RUFUS F. SPRAGUE.

Witnesses:

ALEXANDER GLEAsoN, FRANK A. ToMPKINs.

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