US402450A - Dirt-loading machine - Google Patents

Description

2 Sheets-'Sheet 1.

EQ-T; HOFFMAN.v

. DIRT LOADING MAGHINE.

(No Model.)

Patented Apr. 30, 1889.

l .3 ya E lul l .z l

l(No Model.) 2 Shets--Sheet 2.

E. T. HOFFMAN.

DIRT LOADING MACHINE. No. 402,450. Patented Apr. 3VO, 1889.-

` UiwfviTFn STATES VPATENT OFFICE.

EDWARD T. HOFFMAN, OF SUMMUNDUWO'I, KANSAS.

DIRT-LOADING MACHINE.

SPECIFICATION forming part of Letters Patent No. 402,450, dated April 80, 1889.

Application filed August 9, 1888. Serial No. 232,356. (No model.)

To all whom t may concern:

Beit known that I, EDWARD T. HOFFMAN,

`of Summunduwouin the county of Wyanbeing had to the accompanying drawings,

forming part of this specification.

This is amachine intended for gathering loose dirt and loading it into a cart or wagon accompanying the machine. It has inclined boards on the sides, which, as the machine advances, move the dirt inward, and an endless elevator by which the dirt is scooped up and discharged upon a shaking chute, down which it r-uns into the cart. i

Figure I is a top view of the machine with the draft-tongue removed. Fig. II is a rear elevation of the machine. Fig'. III is a longitudinal section of the machine at III III, Fig. I. Fig. IV is an enlarged detail section at IV IV, Fig. I, showing the ratchet device for causing the rotation of the axle with the ground-wheels. Fig. V is a detail transverse section at VV, Fig. III. Fig. VI is a bottom view of thevmold-boards.v Fig. VII is a detail section at VII VII, Fig. III.

The machine is supported on the drivewheels 1 and the fore wheels, 2. The drivewheels have peripheral projections 3, to prevent their slippage on the ground.

4 4 are inside gear ratchet-wheels attached to the axle-shaft 5 of the drive-Wheels, the

ratchet-teeth 6 being so arranged that when the machine is moving forward the axle will be carried around with the wheels'by means of pawls 7, pivoted to the spokes 8 of the wheels, and which are kept in contact with theteeth 6 by springs 9Vupon the wheels.

10 10 are longitudinal or side timbers of the frame, having parallel parts l1 and inclined parts 12. The mold-boards are firmly attached to these timbers and descend vertically from the same and into the soft ground. The parts 13 of the mold-boards are parallel, whilethe parts 14 are flaring, so that as the machine moves forward the parts 14 carry the earth inward, forming it into a ridge between the parts 13. `The mold-boards have metal shoes l5 at their lower edges to take the wear.

The timbers 10 are connected by suitable cross-timbers, 16, and carryboxes, in which the axle-shaft 5 has bearing.

At 17 are shown draft-timbers forming extensions of the side timbers, which pass beneath the arched front axle, 18.

19 is a tie-bar or strap connecting the ends VI, the timbers 17 being dispensed with and the Vcross-bars 22 extending tothe parts l2. In this case the space between the arched part of the axle 18 and the tie-bar 19 would have to be lengthened, so as to give room for the side movement of the bars l2 in the turn-' ing of the machine.

The front part of the frame is raised and lowered on the king-bolt by a hand-lever, 23, forming with the arm 23 a bell-crank, fulcrumed at 24 to the front axle and connected by a link, 25, with lugs upon a cross-timber, 22. The lever has a usual drop-latch, 26, engaging in notches of a lock bar or plate, 27, so as to hold it and the front end of the frame in any desired position.

23 are lugs on the front axle, I8, foi` the attachment of a draft-tongue.

29 are the uprights of a frame standing upon the timbers l0.

. 30 are cross-bars, and 3l braces of the upright frame. The upper cross-bars'give bearing to a shaft, 32, carrying a drum, 33, over which pass the chains or belts 34 of an endless elevator having scoops 35, which at their lowest position enter the earth between the sides of the mold-boards and are filled by their forward movement. The chains or belts 34 pass beneath a drum on the shaft 36, which is the drive-shaft of the elevator. The shaft 36 carries a spur-wheel, 37, Which turns loosev IOO the shaft 36 by feather-connection, and sliding en'dwise on the shaft to carry its clutch-teeth 40 into or out of engagement with the teeth 38. The clutch-collar is moved by a hand-lever, 41, whose forked end 42 engages with the circumferential groove of the collar.

43 is a spur-wheel fast upon the axle-shaft 5 and engaging with the spur-Wheel 37, so that by the rotation of the axle-shaft the elevator is driven. As the buckets orscoops pass over the drum 33, their contents are discharged into an inclined chute, 44, by which the dirt is carried to one side and discharged. It is intended that a cart or wagon shall be beneath the discharging end of the chute being drawn forward with the machine, and that when the vehicle has been filled another shall take it-s place.

In order to'avoid all danger of the dirt sticking fast in the chute, it is shaken by means which will now be described.

45 is a cam on the shaft 32, having a camgroove, 33, in which engages the fore end of the lever 46, which is fulcrumed at 47 to the frame, and whose rear end engages the arm 4S, projecting from the upper endof the chute. It will be seen that endwise reciprocation will be imparted to the chute, which slides on its bearings 49 50.

51 is the drivers seat.

The operation of the machine is as follows: The mold-boards being adjusted to the proper elevation, and the clutch of the elevator driveshaft engaged, the machine is drawn forward over the dirt previously made loose by plowing or otherwise, the flaring parts of the moldboards moving the dirt inward and forming a ridge. The elevator buckets or scoops are filled with the dirt and carry it up and discharge it into the chute, from which it falls into the vehicle beneath.

I do not conne myself to the mold-boards alone for gathering the dirt together, as a common scraper may be used in combination with the mold-boards.

I claim as new and of my invention- 1. The combination, in a dirt-loading machine, of an endless elevator carrying scoops adapted to enter the dirt before the latter is said wheels with the elevator, and mold.

boards at the sides entering the earth and having parallel rear portions between which the scoops descend, and laterally-flaring front portions adapted to collect the dirt and crowd it between the parallel portions, whereby its depth is increased at the foot of the endless belt, as set forth.

2. The combination, in a dirt-loading machine, of an endless elevator provided with scoops, a main frame constructed to tilt on the rear axle of the machine, a bell-crank lever upon the front axle, a link connecting said lever to the front end of the main frame, a lock bar or plate, 27, a latch on said lever for engaging said plate 27, and mold-boards attached to the frame and descending to the dirt each side of the elevator, and having rear parallel portions, 13, and flaring front portions, 14, substantially as set forth.

3. The combination, in a dirt-loading machine, of a frame constructed to tilt on the rear axle, an arched front axle with a tie-bar connecting the lower ends of the arch and leaving space for the front end of the tilting frame to rise and fall between the arched part of the axle and the tie-bar, a king-bolt passing through the middle of the arch and the tie-bar and through a part of the tilting frame, and a lever fulcrumed to the axle and connected to the tilting frame, substantially as and for the purpose set forth.

4. In a dirt-loading machine, the longitudinal timbers 10, having parallel portions 11, and the extensions 17, forming draft-timbers, the outwardly inclined or aring parts 12, secured to said timbers, and the mold-boards or scrapers suspended from said portions 11 12 and having parallel rear and Haring front portions, 13 14, respectively, in combination with an elevator having an elevator-belt provided with scoops arranged to descend between said parallel portions 13, as set forth.

EDWARD T. HOFFMAN; In presence of JAS. E. KNIGHT, WV. E. MCMANUS.

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