US164829A - Improvement in excavators - Google Patents

Description

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Excavator. N0, l64,829 H Patentedjune22l,\875.

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THE GRAPHIC C0,PHOTOL 1.39 8:4! PARK PLACEJLY.

UNITED STATES PATENT OFFICE.

JOHN VISDOM GONOE, OF JACKSON COUNTY, ALABAMA.

IMPROVEMENT iN ExcAi/AToRs.

Specification forming part of Letters Patent No. 164,829, dated June 22, 1875; application filed To all whom it may concern:

bama, have invented certain new and useful' Improvements in Ditching and Excavating Machines, and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings and to the letters of reference marked thereon, which form a part of this specilcation.

Figure l is a side elevation. Fig. 2 is a top view. Fig. 3 is a transverse vertical section through a plane indicated by the line .fr in Figs. l and 2; and Fig. 4t is a view ofthe slip with its rollers and tilting-board, which forms part of my machine.

' Similar letters ofreference indicate corresponding parts in all the gures.

My improvementv relates to that class of ditching or excavating machines in which the dirt is removed from the plow and deposited on the banks of the excavation by an elevator operated by the drive-wheels of the machine; and it consists in the arrangement Aand combination of the various parts, as hereinafter more fully set forth and pointed out inthe claims.

A is the laxle, which is bent upward, as shown in Fig. 3. B B are the wheels, one ot' which, B, has a concentric inverted gearwheel, b, that engages with a pinion, c, by which the shaft c and friction-wheel pulley l are operated. The frame consists of two main parts, one extending forward, and the other backward, of the axle, and both rigidly secured thereto. rI he forwardpart consists of two converging arms, O, ii'voted to the sides of which are two other diergi'ngoutside arms or shafts, O to `which -the pole and whii'lietree are attached at t'. Back ofthe axle extend two beams, D, to the ends of which a crossbeam, E, carrying the slip F, is secured adjnstably. This adjustability is effected by a series of holes, 7c k k, in the beams D, and corresponding holes made in the depressions Z of y the cross-beam E, (see Fig. 4,) in which the beams D slide, so that the cross-beam E and slip F may be advanced or receded, and se- March 1, 1875.

cured in any given position by the holes 7c, and suitable pins, bolts, or set-screws. rllhe crossbeam E has rollers Gr to carry the weight ot' that part of the machine, and relieve the strain from the necks ot' the horses. The slip or dirt-board F consists of two boards, converging at the top, and having raised sides, so as to form gutters or chutes for the dirt after it leaves the elevator. Upon the top ridge is hinged (in such a manner that it may be removed at will) a tilting-board, F', which, by means of hooks and braces, maybe secured in either oi' the positions shown in Fig. 4, so as to throw all the excavated dirt to one side of the ditch only. Within the frame Gis the plow El with its attachments. The plow does not differ materially from the plows or cutters usually employed in this class of machines, it having the shape of two plows joined together, with the mold-boards facing each other. The plow is rigidly secured' to, and between, two oblique standards, il, and these are secured to beams -Khwhich pass under the top of the axle A, and converge in front at 7c. At the converging point they are pivoted to a short double arm, L which clasps a vertical rack, l, and within which (between the two sides composing the armL) there is a pinion and sprin gpawl, (not shown in the drawing,) so that the arm L, and with it the beams K, may be secured in" any given position, high or low, upon the ratchet l by operating the lever M. In this manner the standards I and plow H may be adjusted while the machine is in motion.

In order further to Jfacilitate raising or loweringof the plow and elevator, there is a crossbeam, m,\between the two beams K and just under the topof the axle A. To this is secured a Vchain or rope, which passes upward and around a shaft, a, which has its bearings in the upward-projecting arms of the axle A. One of these bearin gs a has a sliding boxing, so that the shaft n may be moved up or down in it. Upon the other side of the axle, on the projecting end of the shaft, is a friction-pulley, e, which, by raising the lever N, is thrown into gear with the frictionsurface of the pulley d, already described.

By this combination, when the machine is in motion and the lever N is raised, the pulley e and shaft n will revolve, winding up the chain p, and thus hoisting' up the beams K, standards I, and plow H. The latter is retained in its position by a ratchet, O, pivoted to the back ofthe plow, and engaging with a rod, o', secured between the beams D, already described.

P denotes colters, each formed by a sharpedged circular disk, pivoted upon arms p that are secured upon the beams K, and project downward infront ot' the plow, one on each.

side. The position of these coltersis inclined, so that they will not only help to cut, but also slope and shape the sides of the ditch.

When the machine is not at work the plow and elevator may be raised by turning the crank q, by which the shaft n and chain o are operated. n

The/elevator Q consists of an inclined chute, provided with au endless chain, r, carrying the Scrapers R. -The bottom of the chute or open trough Q is inserted between the standards I and pushed well down over the plow, so that the scrapers R may readily reach and remove the dirt as it is loosened by the plow.

The endless chain is operated by a drum at each end of the chute in the usual manner, the top one of which is made to rotate by a pulley, f, and endless band g, which latter is operated by passing around a groove on the inside ot' the friction-pulley d. g is a bandtightener, consisting of two pulleys inserted,

one above the other, in a forked arm, and secured, by a spiral spring, g", to one of the holes in the beam D, so that the band g will be taut, and operate the pulley f and endless chain r without regard to the pitch given .to the plow and elevator. The latter is secured and its pitch adjusted by movable arms S hinged at s, and provided with holes t t t, so that they may be adjustably secured tothe sides of the standards I, as shown. l,

The whole machine is suitably braced, to afford the requisite strength and rigidity to the various parts thereof; and a seat for the -driver is attached to the top of the axle.

Having thus described myinvention, I claim and desire to secure by Letters Patent- 1. The combination ot' the bent aXle A, frame C, rack l, arm L, plow-beams K, standards I, and plow H, substantially as and for the purpose specified.

2. The combination ot' the bent axle A, having the bearings a a', shat't a, crank q, frictionpulley e, and lever N, substantially as and for the purpose specified.

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

JOHN WISDOM GONCE. Witnesses:

W. H. BoGART, J. L. BLAKE.

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