US362270A

US362270A - Sawing-machine

Info

Publication number: US362270A
Authority: US
Publication date: 1887-05-03
Anticipated expiration: 1904-05-03

Description

(No Model.) 3 sheets sheet 1.

A. P. GILLET.

SAWING MACHINE. Patented May 3, 1887.

' WITNESSES IIiVEJNTOR WW N 's i W B Mg ATTORNEYS.

(No Model.)

3 Sheets-Sheet 2. A. P. GILLET.

SAWIQNG MAGHINB.

Patented May 3, 1887. Q

INVENTOR UNITED STATES PATENT OFFIcE.

ALEXIS FRANooIs GILLET, or BURLINGTON JUNCTION, MISSOURI.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 362,270, dated May 3. 1887- Application filed June 21, 1886.

Serial No. 205,787. (No model.)

To all whom it may concern.-

Be it known that I, ALEXIS FRANgoIs GIL- LET, of Burlington Junction, in the county of N odaway and State of Missouri, have invented a new and Improved Sawing-Machine,of which :he following is a full, clear, and exact descripion.

My invention relates to a machine adapted especially for crosscutting sticks of timber of any thickness into stove-wood, butapplicable also for other duty; and the invention has for its object to provide a simple, comparatively inexpensive,and durable machine of this character,which may be operated by hand or power with marked economy of time and labor as compared with the sawing of Wood by the ordinary handsaw and buck.

The invention consists in certain novel features of construction and combinations of parts of the sawing-machine, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of my improved sawing-machine. Fig. 2 is a rear view thereof.-

Fig. 3 is a plan view, partly broken away. Fig. 4 is a side view of the machine; and Figs. 5 and 6 are enlarged detail views, intended more especially to illustrate the operation of the wood holding, feeding, and discharging devices.

The frame of the machine is made with a base or foot section, A, and two uprights or posts, B B. The base A consists of arear crosstimber, A, two timbers, A A ranging from front to rear of the machine and abutting the cross-timber A, and two spacing-blocks, a a", the one a placed between the forward parts of timbers A A and the one a" placed between the lower ends of the posts B B, which are placed inside of the timbers A A and are rabbeted over the cross-timber A. Crossbolts a a bind the timbers A A the spacingblocks a a and the lower ends of the post B B securely together, and eyebolts a a engaging the rear cross belt a by their eyes, pass through the rear cross-timber, A, and receive nuts at the back thereof, whereby the timber A is held firmly. Braces A A, one at each side of the frame, are bolted at a to the posts 13, and at their lower ends are secured to the crosstimber A, and braces A A one at each side of the frame, are held at their tops to the posts B by the bolts a, and are bolted at their lower ends at at to the opposite sill-timbers, A A". A frame thus constructed is very strong and stable, and gives substantial support to the operating parts of the machine, presently described. Both ends of the base-timber A and the front ends of the timbers A A are concaved or grooved, as at a, to allow stakes, as shown at A in dotted lines in Fig. 4., to be. driven into the ground and lie within the grooves a, to anchor the machine securely when it is to be operated by other than manual or hand power.

To and between the top and bottom parts of the frame-posts B B there are secured the heavy brackets B B, respectively, each of said brackets consisting of a top plate, I), connected at its back end to a yoke or head piece, I), which has opposite side plates resting against the opposing faces of the posts B B, and has flanges b b" lapping on the rear sides of the posts. Two strong brace bars or plates, Z) Z), are bolted to the outer end of the top plate, I), and at their lower ends are bolted to the opposite posts, B B. The brackets B B are held to the posts B B by bolts 1), and on the brackets there are formed or fixed front and rear boxes, 0 c d d, in which are jonrnaled upper and lower shafts, G D, respectively.

To the shafts G D there are fixed at the front of the machine the segment-wheels E F, respectively, and to these wheels the two saws G H are attached by means of bolt ends 9 h, fixed to the ends of the saws and passing freely through lugs g h on the saw-wheels, and receiving nuts h at the backs of the lugs, and whereby the saws may be strained up at any time by tightening the nuts on the bolt ends, and allowing quick removal of the saws for sharpening them. The saws have teeth cutting both ways.

In boxes ij on metal plates bolted to the rear faces of the frame-post-sBB are journaled shafts I J, to which are fixed the intermeshing gear-wheelsk l. Ahand-crank, K, on the shaft I will, when turned, cause rotation of shaft .T, to which is fixed a balance-wheel, J,

to aid the working of the machine by the handcrank, and over which wheel J a belt may be passed from any convenient steamengine shaft or other motor for driving the saws by other than manual power.

To the shaft Jthere is fixed a crank-arm, L, the wrist-pin on which is connected, preferably,bya universal joint, Z, with the upper end of a rod, L, the lower end of which is connected by a link-piece, l, with a crank-arm, D, fixed to the lower saw-wheel shaft, D, and to this arm D there is pivoted the lower end of a connecting-rod, L, which is attached at its upper end to a crank-arm, O, fixed to the upper saw-wheel shaft, 0. \Vith this construction, as the crank-armLis turned by and with the shaft J, the rods L L will rock the shafts O D, and their saw-wheels E F will be osclllated to impart avertical reciprocation to both the saws G H, alternately,in opposite directions. I

The buck or support N for the sticks M of woodto be crosscut or sawed is made with two side pleces, n n, connected at their upper ends by a metal head-plate, n, and pivoted at their lower ends to the base-frame A, on the front cross-bolt, a, of the frame. To the rear faces of the sides 11 n of the buck N there are fixed a couple of metal arms, 0 0, made with their tops inclining downward both ways toward thelr centers, as in Figs. 4, 5, and 6, to receive the sticks M. Between the sides of the buck N there is fixed to the base-frame a tripodstand, P, having two head-plates, p 1), through the tops of which a bolt or pin, It, is passed.

To and between heavy lugs n n on the headplate a of thebuck N there is pivoted, at s, an arm, S, which extends rearward and has a stem, 8, on which is placed a clamp-bar, S, having a loose fit on the stem, allowing the bar to be self-clamping by biting the stem at two diagonally-opposite corners of the mortise of the bar through which the stem passes, as will be understood from Fig. 5 of the drawings. The arm S also has a rearwardly-projecting stem, 8, on which is placed an adjustable counter-Weight, S which by its gravityswings the buck N backward at the proper time for feeding the stick M to the saws, as hereinafter explained. At its front part the arm S is provided with an elongated hole, 8, in which is fitted the head or disk t of a lever, T, said head talso being pivoted to the lugs n n of the buck-head plate n by a stout pin, 25, which is placed off the center of the head t, causing the latter to act as an eccentric on the arm S, when the buck isswung backward,for clamping the stick M, or forward, for releasing the stick.

The leverT is provided at its lower end with an L-shaped slot, U, through which the pin R passes, to hang the lever onto the tripod-stand P, the two parts a a of slot U having special functions relatively-to the pin R and the parts 0 S of the buck in clamping, feeding, and discharging the stick, as presently described.

The operation is as follows: The sawyer will swing the buck N forward toward him to the position shown in Fig. 6 of the drawings, and he will then place the stick M to be sawed onto the buck-arms O O, and the clamping-bar S will then be lowered to the stick. In this forward position of the buck the base of the part a of the slotU of lever T will rest against the pin R in the stand 1?. After the stick M is placed on the buck the latter will be pushed backward by the sawyer to the position indicated by dotted lines in Fig. 5, or until the buck side pieces, a n, and the main body part of the lever T stand about in vertical position. During this backward movement of the buck the pin R will be confined by the part it of slot U, and the eccentric head i of the lever T will throw the forward end of the arm S upward by action in the slot s of said arm, whereby the rear portion of the arm will be swung downward on the pivot s as a fulcrum, to cause the clamp-bar S to bite or bind on the stem 3, and simultaneously press hard upon the stick M and clamp it securely to the buck, which result is effected just as the motion of lever T has caused the fixed pin R to stand at the point of junction of the parts ua of the slot U, and from this point the slot it describes an arc struck from the hinge-bolt a of the buck as a center, and whereby, as the buck is swung backward, the pin R will rest in the part a of the slot and will have no effect to shift the lever T,either for clamping or unclamping the stick. About at the time the buck reaches the dotted position in Fig. 5 the stick M will be carried against the reciprocating saws G H, and the weight S on the arm S will automatically swing the buck backward to feed the stick to the saws until the stick is cut through, and the backward swing of the buck will almost immediately thereafter be stopped by contact of the front end wall of the part a of slot U against the pin R, the buck then assuming its extreme backward position. (Shown in full lines in Fig. 5.) As the stick is out through, its two end parts, which overhang the arms 00 of the buck, fall to the ground, one at each side of the machine, and the center portion or third part of the stick still remains clamped on the buck. To discharge this center portion of the stick the sawyer only has to draw the head of the buck forward or toward him, and as the buck sides n nand lever T move forward of the vertical position, the pin R will, by its action on thelever T, at the angle of the slot U, and in the part c of said slot, throw the front slotted end of arm S downward and lift its rear part and raise the bar S to unclamp the stick, which will then automatically be disengaged from the buck by the momentum of its rearward movement, and the buck will again rest in the position shown in Fig. 6, ready to receive another stick to be sawed in the manner above described.

It is obvious that two cuts are made through the stick at once, leaving the cut wood the proper length for use in ordinary stoves, and

the work is done very much faster than when lCO IIO

the ordinary saw and buck are used, and with much greater ease and comfort, as the sawyer when turning the crankK to operate the saws stands quite erect and so that he can apply his strength With advantage, and, as the saws move through the stick in a straight line, they out clean and with very little friction,which greatly economizes the driving-power. The saw-wheels E F may be made any size to space the saws G H apart any distance for cutting the sticks into pieces of any preferred length. The hand-crank K may be connected with the shaft J, and the gearing k Z and shaft I be dispensed with; but the arrangement shown for speeding up the motion of the saws is preferred in practice.

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

l. The combination, in a sawing-machine,of a supporting-frame, opposite saw-supports journaled thereon, two saws held at opposite ends to the supports, mechanism for oscillating the supports to reciprocate the saws alternately in opposite directions, and a saw-buck hinged for movement to and from the saws and comprising side bars, 12 a, to support the sticks to be sawed, and an arm, S, pivoted at s to the buck-frame and having a stem, 8, and clamping-bar S on said stem, a slot, 8 in the arm S, a lever, T, having an L-shaped s1ot,U, a pin, R, held to the sawing-machine frame and entering said slot, and said lever T having ahead, it, entering the slot s of arm S and pivoted eccentrically at t to the buck-frame, substantially as described, and for the purposes set forth.

2. In a sawing-machine, the combination, with a frame, as at A B, and bearings thereon,

of shafts O D, saw-Wheels EF thereon, saws G H, held to the wheels, a shaft, J, and gearing rotating said shaft, crank-arms (7 D on shafts O D, crank-arm L on shaft J, rod L, connecting the crank-arm L with the crank-arm D, and a rod, L connecting the crank-arms G D, substantially as described, for the purposes set forth.

8. In a sawing-machine, the saw-buck N, comprising side bars, a a, pivoted to the machine-frame and connected at their upper ends, arms 0 O, fixed to bars a n, to support the sticks to be sawed, an arm, S, pivoted etc to the buck-frame, and having a stem, 8, and clamping'bar S on said stem, a slot, s, in the arm S, a lever, T, having an L-shaped slot, U, a pin, R, held to the sawing-machine and entering said slot, and said lever Thaving a head, t, entering the slot 8 of arm S and pivoted eecentrieally at t to the buckframe, substantially as described, for the purposes set forth.

at. In a sawing-machine, the saw-buck comprising a frame, a a a, pivoted to the machineframe, arms 0 O, to support the sticks, an arm, S, pivoted at s to the buck-frame and having a stem, 8, a clamping-bar, S, adjustable on forth.

ALEXIS FRANQOIS GILLET. Witnesses:

LoUIs GILLET, ALEXIS hIARCHAND.