US93401A - Improved ditching-machine - Google Patents

Description

dinard *gtatte SPENCER BENTLEY, OEGR'EEN oak,

MICHIGAN.

Letters Patent No. 93,401, 'dated August 10, 1869.

The Schedule referred to in these Letters Patent and making pari; of thesame.

t To whom it may concern: Be it known thatI, SPENCER BENTLEY, of Green Oak, in the county of Livingston, and State of Michi- 4 gan, have invented a new and useful Improvement in -Machines for Ditching-Purposes'; and I do declare that the following is a true and accurate description thereof, reference being had to the accompanyingl drawings, and to the letters of reference marked thereon, and being a part of this specification.

lFigurel is a side elevation,-with the side of the case removed. w'

Figure 2 isa -perspective view, from the opposite side, of the front ofthe machine.

` y Like letters refer to like parts in each figure.v

The nat-ure of this invention relates to the construction of a machine for excavating ditches; and conf sists in a new form of shovel, for cutting one side ofy the ditch, when moving ion one direction, and the opposite side when moving in an opposite direction, with a novel elevator for removing the dirt excavated, so arranged as to prevent clogging; also in a device for drawing'the dirt -from the shovel to the elevator.

O, in the drawings,repre'sents an open frame, its

rear end being supported by a traction-wheel, A, whose shaft is journalled into the sides of the frame.' This wheel is provided with teeth, for the double purpose of giving it a firm hold on the ground, and for operating vthe elevator by means of the cleats N, with which said teeth engage.

The forward end of the apparatus is supported by a pair of bearing-wheels, K L, (the latter of which is shown in dotted lines in' iig. 1,) revolving on a shaft secured to the adjustable staridard P, the depth of cut being regulated by the nut Q, on the top of said standard. v v

J .isacutter, secured to the beam immediately in the rear of the bearing-wheels, for the purpose of divldingthe earth in the centre of the proposed ditch.

It are cheeks or side plates attached to,and suspended from the frame C.

' M is a shovel, secured between said cheeks, and which is made in the forni shown in the drawings. The right lipor edge of the cheek should be faced with steel to out the clay in forming the right wall of the ditch.

The shovel is formed with an offset or jog, X, on the left side, the bottom of the cheek on the same side being cut away, which willleave in the bottom of the 'ditch a correspondingfr'idge, upon which the bottom` of the left cheek will slide and have abearing, to assist in keeping the apparatus upright. By this arrangement the space between the cheeks is greater than the width of the ribbon of clay takcnup by the shovel, allowing the clay to spread out on the elevator, and preventing any tendency to clog in its passage.

S are corugated chain pulleys, which carry the endless-chain elevator B, which is constructed in the following manner:

Two lpieces of what is termed jack-chain, of Ysuitable length, are taken, which have their ends joined *l together, so as to form two endless belts, and which serve as a foundation and carrier for the superstructureof the elevator.

N are iron cleats or anges.

T are sheet-metal plates, cut the width of the interior of the case, `and one end thereof secured to the chains heretofore mentioned. The same bolts, screws, or rivets may pass through the iron cleats or flanges, and thereby secure them,as wellas the plates, to the chains. 'lhese cleats or flanges should, iu their distance from eachother, correspond with the spurs on the driving-wheel,jwith which they engage, and from which the elevator derives its motion, in the forward motion of said driving-wheel.

A swell, b, is formed on the under side of the carriercase, under which the carrier passes in close proximity with the driving-wheel A, and is designed to act as a tightener to compel the engagement ofthe cleats or flanges N with the cogs or spurs on said wheel.

If the plates T are so placed on thecarrier to overlap a trifle, no dirt can possibly fall down between them,but should any. fall through the small space between their edges and the sides .of the casing, 'as they are attached to the carrier by one end only, it

-will fall through those on the under side of the carrier to the bottom of theditch, whence it will be taken up at the next'passage of the implement. v

.- D is a hoe, operated by the cranked shaft U, which in turn is operated by a belt, I, from a supplementary pulley on the side of the driving-Wheel A, passing over the pulley V, which is secured to the shaft U.

The Ashaft of. the hoe works between the stops EA V and F, which form fulcra by means of which, and the action ofthe crank, the hoe is raised in moving forward, and is depressed against the shovel M, in receding, scraping the dirt from the shovel on to the plates of the carrier.

v When the dirt arrives at the top of the casing, each' plate is tilted in passing over the pulley S', and the dirt thereon is dumped into the discharge-'spout O,

'which delivers it at one side ofthe ditch.

To make the finishing-cut atthe bottom of the ditch, the position of the bearing-wheels should be reversed, thereby allowing the larger wheel to run in the deeper side of the cut, While they apparatus cuts the opposite side to an equal depth.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The hoe D, and stops E and F, and crank G, in connection with driving-pulley H, belt I, and driving' wheel A, when constructed and operating substantially as and for the purposes specified.

2. The machine described, consisting essentially of the frame- G, shovel M, couveyer N T B, hoe D, and bearing-wheels K L, the whole being combined and operated as andfor the purposel set forth.

' SPENCER BENTLEY.

Witnesses:

LOUIS C. HYDE, GEORGE RUHLANDT.

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