US8453A - Excavating-machine - Google Patents

Description

UNITED STATES PATENT orrrcn.. A

BENJ. W. REMY, OF BROOKVILLE, INDIANA.

EXCAVATING-MAGHINE.

Specification of Letters Patent No. 8,453, dated October 21, 1851.

To ZZZ whom, z'z may concern Be it known that I, BENJAMIN WV. REMY, of the county of Franklin and State of Indiana, have made certain new and useful Improvements in the Machine for Exca vating Earth; and I do hereby declare that the following is a full, clear, and exact description of their nature and construction, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a plan view, without the case, Figs. 2 and 3, right and left hand side elevations, and Fig. 4L, a longitudinal vertical section. y

The same letters refer to similar parts in each of the figures.

The nature of my invention, consists first, in suspending the shaft (on which is hung the box containing the earth to be removed and the wheel of buckets or elevators) toV two movable arms one on each side of the wheel, one end of these arms being attached by fulc'rum pins to the frame work of the machine and turning thereon freely, so that as the other ends of these arms are elevated by appropriate connections to a perpendicular line they will carry up the shaft, the body and the elevators, and the machine can then be adapted to any irregularity of ground. And the second part of my invention consists in making the operation of dumping self-operating, by suspending the body permanently to the shaft on which the rims of the wheels of elevators turn loosely, said shaft carrying a pulley at one end, the periphery of which is notched to receive the end of a lever which prevents the body from turning while being loaded, and combining therewith a friction roller1 so that when the body is full of earth and the attendant has raised the wheel of elevators from the ground vthe pulley on the shaft of the elevators is brought up against the friction roller, and when the lever is removed from the notch in the pulley the friction produced will cause the shaft and body to rotate and thereby discharge its contents.

In the accompanying drawings, a represents the cart body or box which is permanently attached to the shaft b, the ends of which have their bearings in arms c and CZ placed on each side of the machine. The arms c extend down some distance below the bearings of the shaft and are hung on fulcrum pins e attached to the frame work of the machine and the upper ends of the arms Z are slotted to receive screw bolts which pass through and connect these ends to the shield f which is placed just over the wheel of elevators to be presently described. This shield may be made of any material and extends across the entire width of the wheel of buckets or elevators, and has at each end a cord g attached which passes over pulleys Zz., and each cord is then wound around in the same direction and secured :to a roller or shaft Z placed at the rear of the machine. Near one end of this roller or shaft there is another cord j wound around it in an opposite direction to the cords g, and it then passes forward through an eye lo in the shield, f, and back again to the other end of the roller or shaft and secured to it in the same way as at the end first mentioned. These cords in connection with some other parts of the machine to.be presently described are for the purpose of drawing down the wheel of elevators and shield, the shield simply preventing the earth as it is being carried up by the buckets from falling over to that part of the ground which has been operated upon.

On the shaft Z), are loosely hung the rims Z, forming the wheel of elevators, so that they (the rims) can revolve freely on the shaft when the machine is in operation for the purpose of loading the body, while it and the body remain stationary. .The elevators m are made of any form desired, although in the model and drawings they are represented of a curved form as best adapted to the purpose, and extend across from one rim to the other and are bolted or otherwise secured to them.

The journals of the roller or shaft z', run in boxes n, one of which is so constructed as shown by dotted lines in the longitudinal section in the drawings, that the end of the roller which is supported by this bearing` shall slide freely back and forth, and this end of the roller extends through to the outside of the machine and carries a pinion 0 which when the attendant desires t-o elevate or depress the elevators to suit the ground to be worked, is made to engage the teeth of a wheel p (on the rear axle of the machine) by means of a forked arm q, one end of which embraces the journal of the roller or shaftz' and, the other end is attached to a rod 1 which extends to the front of the machine, said rod at the front end being also connected to an upright arm fry. 0n the outside of the frame work of the machine, and on the same side also with the rod there is a lever sl having its fulcrum s the forward end of which is made to act on the upright arm 11 and the rear end is curved downward and provided with teeth to hold the pinion 0 from the wheel p, (as is presently described) when the elevators are ready to be set in operation.

From the foregoing it will be seen t-hat when the attendant desires to depress the buckets or elevators so as to operate on a piece of ground, he forces up the forward end of the lever s, which relieves lthe upright arm r (the rear end of said lever s at the salne time from its curvature relieving the pinion o) and then the attendant by forcing said upright arm in toward the machine causes the arm g (which embraces one of the journals of the ro-ller or shaft to bring the pinion 0 in contact with the toothed wheel p, and by moving the machine backward a little the motion thus given to the pinion 0 causes the shaft z' to revolve with it and by means of the cords g and already described the elevators can be depressed as low as desired, and then the forward arm of the lever s is forced down by the attendant by which mot-ion the pinion is released from the toothed wheel, and held away from it while the machine is in operation by the rear end of said lever which, as before stated, is curved downward and provided with teeth for that purpose.

On the opposite side of the machine and attached to the rear aXle is a pulley t from which a band passes to a pulley u on a journal e and this journal also carries a friction roller w which when the earth is to be dumped is made to bear against the periphery of another wheel permanently secured to the shaft 1),' and this wheel w is notched to receive one end of a lever y, which holds the body of the cart firmly while it is being loaded. After the body has been loaded and the machine been drawn to the place where the earth is to be dumped the levery is released from the notch in the wheel fr by the attendant by means o-f a cord z, attached to it and passing to the front of the machine.

The buckets or elevators having been lowered to the ground in the manner above stated the machine is then put in operation and as the wheel of elevators revolve freely on the shaft b the shaft itself with the body or box a is held stationary by means of vt-he notched wheel a0 and the lever As the bucketsor scoops revolve over the ground that portion of the earth which is in front of the buckets is caught up by them and delivered in the cart body or boX the shield preventing any earth from falling on that part over which the elevators have passed. When the body or box has been filled the pinion 0 is brought in contact with the toothed wheel p and the elevators are raised sufiiciently to be free from the ground, the pinion 0 is then released, and the machine removed to where the earth is to be dumped.

The drawing represents the rims Z which form the wheel of elevators as raised from the ground, and the notched wheel m being firmly secured to the same shaft is raised with them and consequently brought in contact with the friction pulley or roller fw. Then the machine is in the position as shown in Fig. 2 the body a is supposed to be lled with earth and ready to be discharged of its load, the wheel m and pulley w being` in contact, and by raising the lever y out of the notch in the wheel a: and moving the machine a little forward the friction of the pulley w (which receives its motion from the pulley t) 'on said wheel will cause the body to turn and discharge its load.

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

1. The within described arrangement of parts by which the elevators can be raised or lowered to correspond with any irregularity or unevenness of ground. y

2. And I also claim making the o-peration of dumping self-operating by means of the friction roller acting` on the periphery of a pulley permanently attached to the shaft as herein fully described and represented and for the purpose made known.

BENJAMIN W. REMY.

Witnesses ISRAEL STOUGH, IVM. Morrrr'r.

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