US307708A - Ag-saw - Google Patents

Description

nUsiiTnn STaTns Parenti @Tries WESLEY COLE, F MENO LIONEE, VISCONSIN.

DRAG-SAW'.

SPEGIFIATIDN forming part o Letters Patent No. 301703, dated November d, ld.

Application filed April 18, 1384. (No model.)

f in the county of Dunn and State of .Tliseonsin,

4have invented certain new and useful Improvements in Sawing-Machines; and I do declare the following to be a full, clear, a'nd enact description ofthe invention, suoli as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a plan view of my machine. Fig. 2 is a vertical sectional view of the saine,- and Fig. 8 is a cross-sectional view taken through line g/ y, Fig. l.

This invention has relation to hand sawingmachines; and it consists-in the construction and novel arrangement of devices, as hereinafter set forth, and pointed out in the appended claims.

In the accompanying dr wings, the letter A indicates the main frame, having the side bars, B, to the forward portions of which are secured the spindles of the carrying-wheels C. These side bars are connected in rear by transverse framing D, and between the carryingwheels by the transverse upright frame E, consisting` of parallel side bars, a, and intermediate bars, b, the connecting transverse capbar c, and the transverse base d.

To the intermediate uprights, Z), are secured short bearings e, having on their front ends upwardly-turned coupling-hooks F, adapt-ed to engage the loops G of the rear ends of the fender-bars II.

0n bearings of the main frame are seated the journals of the crank-shaft II, which is formed with two cranks, f and g, at right angles to each other, to facilitate passing the deadcenter. To these cranks are connected pivoted arms h of the hand-levers Ii, the forward ends of which are pivoted to bearings m of the upright transverse portion of the main frame. Atreadle may also be connected tothe crank-shaft to facilitate the operation thereof, and relieve the hands when desirable.

On the end of the shaft K is keyed a gearwheel, P, which engages a pinion, p, on the end of a transverse shaft, N, which carries the fly-wheel Id. This fly-wheel is preferably arranged between the intermediate bars, o, of the upright transverse frame, and its shaft is seated on bearings of said transverse frame, to give the ily-wheel a solid support. The loops G at the ends of the fender-bars are provided with springs s, which are adapted to press against the outer surfaces of the heoks F, to prevent casual disengagement. The fenderbars are connected by bow-braces It, which sustain a tubular horizontal guide, T, having longitudinal slots in its sides for the passage of a short transverse shaft pin or bolt, z, on which is pivoted the anti-friction roller or ball o, which works in the interior of the tubular guide.

To the ends of the pin or bolt e are connected the ends of the branches a of the rear pitman-section, A', which extends to the iiywheel, and is pivoted to a wrist-pin, w, thereof. To said pin or bolt .e are also pivoted the ends of the branches b of the front pitmansection, B, to the end of which is secured the saw S. By the device of this tubular guide, roller-bearing, and pitman-sections I am enabled to make that portion which is fastened to the saw quite short, and at the same time give it a free working movement. The saw, in starting, works in a back guide, J, which is attached to a bow-brace, V, connecting the fender-bars at their front ends. Screw-points C', passing through the front ends ofthe fender-bars, serve to attach the same to the log. These screw-points are provided with crank ends, to facilitate their operation. When the machine is in operation, the rear brace-frame, D, rests by its legs Dpon the ground, and the transverse upright frame Id also rests upon the ground by the feet e of its base portion. YVhen, however, the machine is being moved, by lifting the handle ends of the side bars, the supports D and c are lifted from the ground and the wheels are freeto operate. When the machine is being moved, the fender is turned upward on the pivot-hooks of the main frame, and may be secured by means of an attachment-cord, e.

Having described this invention., what I claim, and desire to secure by Letters Patent, is-

l. In a sawing-machine, the combination,

IOO

with the main frame, of the short hooked J, the lifting-rope z, and means for attaching bearings e, the fender-bars H, bow-braces R, the same to the main frame, substantially as connecting the fender-bars, the tubular guide specified. i T, supported on the said braces, the bolt z, In testimony whereof Iaffix my signature in 5 anti-friction ball c, pitman-sections, saw, and presence of two witnesses.

mechanism for operating the same, substanh tially as specied. s

2. In a sawing-machine substantially as de- ,WESLEYmkCOLE scribed, the combination, with the main-frame 1o bearings e and fender-bars H, of the boW- Witnesses:

brace V, connecting the forward ends of the THoMAs RUNNING, fender-bars, and provided With theback guide, SEWELL H. PETERSON.

Images