US234375A - Harvester - Google Patents

Description

(ModeL) 48h t-Sh t1.

$.11 MADDIN. e6

Harvester No. 234,375. Patented Nov. 9,1880,

lllll llllllllllll [mg illll ll ll I [ll N.PETERS, PHOTmLlrHOGmFHER, WASHINGTON, D Q

(ModeL) 4 Sheets-Sheet 2.

S. D. MADDIN.

Harvester. No. 234,375. Patented Nov. 9,1880.

a; i A ,r

N PETERS, PHOTO-LITHGGRAPHER. WASIHNGTDN. O C.

3 t 6 8 h S m m 8 e h S 4 N I D D A M .D S

(ModeL) Harvester.

No. 234,315. Patemd Nov. 9, i880.

N wb

N PETERS, PHOTO-LITHOGRAFEQER, WASHINGTON. D C.

(ModeL) 4 Sheets-Sheet 4.

S. D. MADDIN.

' Harvester. No. 234,375.- Patented Nqv. 9, I880.

, iinirrn Srarns Parana anion.

SAMUEL D. MADDIN, OF ST. PAUL, MINNESOTA.

HARVESTER.

SPECIFICATION forming part of Letters Patent No. 234,375, dated November 9, 1880.

' Application filed April 23, 1880. (ModeL) T 0 all whom "it may concern:

Be it known that I, SAMUEL D. MADDIN, of St. Paul, Ramsey county, Minnesota, have invented an Improvementin Harvesters, of which the following is the specification.

My invention is a mower adapted for cutting grass or grain, and constructed, as hereinafter described, so that the cutter-bar may conform to the inclination of the ground without altering the relation of the cutter-bar and driving appliances.

The invention further consists in certain constructions and arrangements, whereby the various parts of the machine may be adjusted and operated with facility and the strength and efficiency of the structure increased.

In the drawings forming part of this specification, Figure l is a plan view of my improved mower, the upper frame being removed. Fig. 2 is a side view, one of the wheels removed; Fig. 3, a sectional elevation. Fig. 4 is a front elevation; Fig. 5, a detached View.

The main frame J is carried by the wheels in any suitable manner, and to this frame is centrally pivoted the cutter-frame A, carryingfingers G O and cutters B.

Centrally with the axis on which the frame A vibrates is the driving-shaft a of the crankwheel 0, the wrist-pin of which is connected by any suitable appliances to the'cutter-bar. On a rotary motion being imparted to the wheel 0 the cutter-bar will be reciprocated without changing the relative positions of the intermediate connections, while the frame A can tilt laterally to either side so as to conform to the irregular face of the ground without affecting the connections between the crank-wheel O and the driving mechanism. While these features may be embodied in various structures, that which I have shown in the accompanying drawings will be found most efiective.

The frame J consists of a T-shaped hollow bracket, the central stem, j, of which receives the driving-shaft a of the crank-wheel, and

carries the tubular shank A of the frame A,'

while the transverse head j receives a tube, j constituting part of the frame, and through which passes the axle b, carrying near each end a ratchet-wheel, b.

Pawls I) hung to the wheels 11 engage with the ratchets, and are pressed against the same by curved springs I), (see Fig. 5,) the said springs resting upon pins b and so curved that when a pawl is turned to the position shown in dotted lines it will be held away from the ratchet by the pin b slipping into the yoke of the spring.

The shaft a has a rear pinion, a, gearing with a bevel-wheel, a upon a shaft, a carried by the main frame, and this shaft has a clutch, to, operated by a hand-lever, a and carrying a pinion, a which gears with the toothed wheel I) attached to the axle.

By operating the lever a the pinion a may be thrown in and out of connection with the shaft a so as to throw the cutters into and out of operation during the forward movement of the machine. Alike result may be secured by throwing upward the pawls 0* in moving the machine from place to place.

The frame A is most economically made, while great strength and rigidity is secured by using tubes 0, 0, c c and 0 for the sides and ends, the corners consisting of socketed elbows cl (1 d d.

The sections 0 0 turn in sockets in and project laterally from the shank A, enter the elbows d, and are secured each by a set-screw, 2, which may be loosened and then tightened, so as to adjust and secure the remainder of the frame in any desired position in respect to the parts carried by the upper bar. Other devices may replace the set-screws.

The lower tubular bar, 0 is the guard-bar, supporting the fingers or guards O and turning in the elbows at, so that the guards may be raised or lowered, as found desirable. Any suitable means for turning the bar 0 may be employed. Aconvenient arrangementconsists of a crank-shaft, E, one end of which carries the lever E, while the crank E at the other end, is connected by a rod, f, to an arm, f, extending from the bar 0 which may thus be turned by moving the lever E.

A crank-pawl, g, pivoted to the lever E, to be operated by a crank-arm, 9 engages with a rack, 9, so that the lever and its connections may be held in any position to which they are adjusted or released for further adjustment by a simple grasp at the upper end of the lever.

The frame A is braced by means of diagonal stays h, extending to the rearend of the shank A, and may be turned, lowered, or elevated by means of a lever, F, pivoted to a bracket, 0, upon a frame, I, hung to the axle-shaft, and carrying at the forward end the reel-frame L.

Between the bracket 6 and side brackets, e 6 extend two crank-shafts, M M, in line with each other, and provided with hubs c having notches to receive the lower ends of slides e 0, carried by the leverF, and each operated by a crank, 0 pivoted near the upper end of the lever. The crank-arm of each leveris connected by a chain, 0 to the upper bar of the frame A below. Another crank, 0 pivoted at the upper end of the lever I is connected to a crank-pawl, 0 that engages with aratchet at the upper edge of the standard 6, so as to secure the lever in any position to which it is set.

When either slide is in the notch of thehub below it the corresponding shaft will turn with the lever, thus raising or lowering the frame A at that side. Either shaft may be turned at will, or both may beturned together by means of the lever F, the eifect being to draw upon the chains 0", turn the frame J in the axle,and lift the inner portion of theframe A, thus altering the angle of the frames J A to each other, and the angle of the frame A to the ground. It will be seen that by the prox imity of the operating-cranks e 0 these movements can be effected without removing the hand from its position near the upper end of the lever F.

The cutter-bar may be driven from the crankwheel 0 by any suitable appliances; but I prefer to use two double crank-shafts, H H, hung to brackets of the frame A, which may be substantially parallel with the ground, the rear arm, k, of each shaft extending upward and being connected to one of the rods attached to the wrist-pin of the crank-wheel, and the forward arm, 7t, extending downward and being connected by a link, W, to the cutter-bar. By this construction the cutter-bar is driven as directly as if it were in line with the crank-wheel. Moreover, I am enabled to readily secure an extended movement of the cutter-bar so as to throw the knife through two of the fingers at each stroke, by which I can reduce the speed one-half without decreasing the efficieney of the machine.

It will be noticed thatl have shown acrankshaft at each end of the frame, an arrangement which I adopt for use with a cutter-bar in two sections, each driven from one end, thereby reducing friction.

The wheels 3 4, supporting the cutter-bar behind and in front, turn each upon a stud of a plate, 5, pivoted to the frame and slotted to receive a securing-bolt, 12, by which the frame, after being set at any desired position, may be firmly fixed.

By properly adjusting the wheels by these or by equivalent devices the height of the front portion of the cutter-bar can be varied at pleasure. These wheels further serve as bearingpoints upon which to tilt the frame A, so as to raise or lower the front portion, with its guards and cutters. For this purpose the sections 0 c of the rear bar are connected each to one end of a yoke, 0. By depressing the outer end of the yoke O the frame A will be brought at an angle to its shank A, the rear bar being depressed and the outer bar elevated, the frame rocking on the wheels 3. By raising the outer end of the yoke the inner bar of the frame will be elevated and the outer bar depressed. The yoke is provided with a notched arm, 13, engaging with the pin 14, and by which it may be secured in any desirable position.

The guard-fingers may be attached in various ways. I prefer to perforate the front tu bular bar and to provide each finger with a shank, a, which is passed through said perforation and riveted at the inner end or secured by a nut. By these various adjustments of the frame A and its parts the cutters may be raised or lowered, tilted to any desirable angle, and will automatically conform to the contour of the ground, however irregular the same may be, and these movements are effected without altering the relative positions of the driving appliances, without excessive friction, while all the parts are perfectly under the control of the driver, whose seat, N, is secured to a bracket projecting from the frame J. By securing the seat to the frame J the frame A is counterbalanced by the weight of the driver.

It will be noted that the frame J, supported by the axle, aflords bearings for the frame A, the axle, and driving-shafts; that the whole is strong, compact, and durable, free from joints, and without bolts.

The construction of the frame A of tubes and elbows is attended with like advantageous results.

\Vhere a reel is not required the frame L may be dispensed with. The draft-attachments are made at any suitable point, and will vary somewhat with the size of the machine, and the construction adapting it for grass, grain, or other purposes but where a frame, L, supporting a reel is used the horses are placed at the sides and outside of the cut by securing the short whifiletrees m m to a chain, as, which is carried across the machine.

To secure an upward draft upon the cutterbar the chain :0 may be passed through eyes in the standards f arranged below the plane in which the ends of the traces are connected in the harness. The chain or rope ac acts as an evener, and the standards f are arranged to throw the line of draft outside of the cutterbar, so that neither horse travels in front of the bar but outside of the out.

To throw the grain or grass inward and out of the way of the wheels I employ guards or shields 15, and to these I pivot gatheringplates 16 17, as shown in Figs. 1 and 2, so

jointed as to conform to the ground, and so curved as to throw the grain to the center of the machine from each side.

Without limiting myself to the precise construction and arrangement of parts shown and described,

I claim- 1. In a mower or reaper, a frame supported by the wheels, a frame, A, carrying the cutter-bar, and centrally pivoted at the rear to the main frame, and a driving-crank arranged upon the shaft concentric with the pivot, and connected to the cutter-bar to operate the same, substantially as set forth.

2. The combination of the frame J, carried by the wheels, the frame A, centrally pivoted to the frame J the crank-Wheel O, a side crankshaft, H, and rods or links connecting the cranks of said shaft to the cutter-bar and driving-wheel, as specified.

3. The combination of the frame J, frame A, and appliances for raising and depressing the rear bar of theframe A, as set forth.

at. The combination of the frame J, the frame A, having a shank, A, with bars c fitting in sockets of said shank, bearing-wheels at the forward end of the frame A, and appliances for raisin g an d depressing the rear bar of said frame, substantially as specified.

5. The combination, with the frame A, pivoted, as set forth, of the independent crankshafts M M, connected each to the rear bar, and frame and devices for adj ustin g said shafts separately or together, substantially as setforth.

6. The combination of the crank-shafts M M, having notched hubs e c, the notched bracket 0, slides e 0 pawl 0 and cranks e" 6 substantially as set forth.

7. The combination, with the frame A, of bearing-wheels 3, arranged back of the cutters, and appliances for raising and depressing the rear portion of the frame, as set forth.

8. The combination of the frame A and the guards and jointed shields and gatheringplates 16 17, all constructed and arranged as set forth.

9. The frame A, consisting of tubes and corner-pieces d (1 d d, the latter provided with appliances for securing the bars of the frame after adjustment, as and for the purpose specified.

10. The combination of the pivoted frame A, frame J, and diagonal stays a, as set forth.

11. The combination of the guards, a knife in two sections, and rock-frames at each side of the frame, each connected to the adjacent knife-section, and with the driver from a. central wheel, 0, substantially as set forth.

12. The combination of the rope or cord 00, the standards f, having eyes for the passage of the cords below the line of horizontal draft, and the whiffletrees 0000, secured to the ends of the cord, substantially as set forth.

ln testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL D. MADDIN. Witnesses ERAsMUs M. DEANE, NEWTON P. R. HATCH.

Images