US311501A

US311501A - William lucas

Info

Publication number: US311501A
Authority: US
Publication date: 1885-02-03
Anticipated expiration: 1902-02-03

Description

litre Praras Farmer trice.

'WILLIAM LUCAS, OF MARKDALE, ONTARIO, CANADA.

SWING-ll/IACHINE.

SPECIFICATION forming part of Letters Patent No. 311,501, dated February 3, 1885.

Application tiled July 524, 1884. (No model.) Patented in Canada June 28, 1884, Ne. 10,686.

To all whom it may concern.-

Be it known that I, WILLIAM LUCAS, of the village of Markdale, in the county of Grey, in the Province of Ontario, Canada, banker, have invented a certain new and useful Sawing- Machine; and I do hereby declare that the following is a full, clear, and exact description of the same.

The object of the invention is to devise a portable machine by which a crosseut-saw may be operated with greater ease than when worked without the machine in question 5 and it consists, essentially, in connecting the crosscut-saw to a frame arranged to guide it, and also assist in starting the cut at each end of the stroke.

Figure l is a perspective view of the machine. Fig. 2 is an enlarged perspective detail of the rear guiding part of the frame. Fig; 3 is a perspective detail of the front guiding part of the frame.

A is a triangular base-frame, its apex being rigidly bolted to the front guiding-frame, B. This guiding-frame extends diagonally beyond the legs C, which are connected at their base to the frame A and at their apex to the frame B, as shown.

D is a rear or back guiding-frame securely fastened to the frame A, as indicated, and arranged to receive and guide the bottom of the leg E, the upper end of which is connected to the frame B by the curved spring F. It will be noticed that the leg E passes through a slot in the bar G and moves freely within the said slot, the said leg being pivoted to the bracket H, which, as shown, is lined to the bar G. A

I is the saw-handle, one end of which is pivoted to the bracket J, which is connected near the bottom of the leg E, as shown. This sawhandle I passes between the vertical bars K, and is fastened to the saw L, which saw passes through a slot made in the bottom of the frame B, which is therefore a guide for the saw.

Immediately above where the saw passes through the frame B a friction-roller, M, is placed, on which friction-roller the bar G rests, so that when the said bar is worked back and forth with the saw the roller Iprevents any appreciable friction.

N is a triangular frame, the base of which is pivoted to the legs C, and its apex is provided with a friction-roller, O, arranged to rest upon the top edge of the saw L. This frame N is intended to provide means for adding weight to the saw, the said frame not only adding weight itself, but stones or other Weights may be placed on top of the frame for increasing the weight, if desired.

By connecting the saw-handle to the foot of the leg E, I keep the saw down horizontally to its work, while by placing the handlesIJ on the bar G the operator can work the saw Without stopping, although the power is conveyed directly behind the saw L, through its connection with the leg E, which is pivoted, as before mentioned, on the bracket H, fastened to the bar G. Owing to the curved spring F the leg E receives a start at the commence ment of each stroke-that is to say, when the leg E has been pressed close to the legs C, the spring F will be compressed, and in regaining its form imparts a back-pressure to the leg E. When the opposite end of the stroke is reached, the spring F will be expanded, and imparts by its reverse action a back start for the leg E. In this way the sawing is much easier, as the sawyer gets assistance at a time in the stroke when assistance is of the most benefit-.namely, at the commencement ofthe stroke-and as the sawyer can operate the saw without stooping he has much more power over it, and it is, moreover, much more easily Worked.

In order to enable more than one to assist in sawing, I place on the bar G one or more handles, Q. A spike, R, is placed at the end of the frame B, for the purpose of being driven into the log S, which log is further held to the saw-frame by the dog T.

lVhat I claim as my invention isl. In combination, the guide-bar G, bracket H, attached thereto, leg E, pivoted between its ends to said bracket, one of said ends being connected with the saw, and the springF, arranged to support the other end and give an impulse to the saw, substantially as described.

2. In combination with the saw L, handle I, frame B, and leg E, the reciprocating bar G, slotted at one'end to admit of the passage of the leg E, and bracket H, the parts being constructed, arranged, and operating substantially as set forth.

3. The saw L, attached to the handle I, and deriving a reciprocating motion, as speeied, in combination with the triangular bar-frame IOO N, pivoted to' the main frameof the machine, ing in and guided by the frame B, as Speciand provided with a friction-roller, O, slotted fled, and actuating the leg E, substantially as 1o guide-frame B, vertical guide-bars K, and and for the purpose set forth.

frame D, the parts being arranged and oper- Markdade, June 10, 1884.

5 ating for lche purpose speoied. WILLIAM LUCAS;

,4. The frame B, provided with means for In presence ofsecuriug and holding a log, S, in combination VILLIAM L. YOUNG, with the saw L, leg E, and bar G, reoiprocat- THOMAS MENEA.