US139765A - Improvement in ditching-machines - Google Patents

Description

G. M. BROWN. Ditching-Machines.

Patented June 10 1873.

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UNITED STATES PATENT OFFICE.

CHARLES M. BROWN, OF BALTIMORE, MARYLAND.

IM PROVEMENT IN DlTCHlNG-MACHINES.

Specification forming part of Letters Patent No. 139,765, dated June 10, 1873 application filed April 11, 1873.

To all whom it may concern:

Be it known that I, CHARLES M. BROWN, of Baltimore, in the State of Maryland, have invented certain Improvements in Ditching- Machines, of which the following is a specification and I do hereby declare that in the same is contained a full, clear, and exact description of my said invention, reference being had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to certain'improvements upon that class of ditching-machines in which the blade is attached to the casing of the traveling or rolling Wheel or wheels of the machine, and the dirt carried up within the casing by the wheel, as an elevator, to the upper part of the said casing and a spout joining therewith, against the forward part of which spout the dirt is thrown, whence it falls, of its own weight, down the spout and out from the machine. The nature of my invention consists, first, in the combination of a series of spring-cutters with the rollingwh-eel and a cam or equivalent device, suspended fixedly from the stationary axle of from the periphery of the rolling-wheel, and

cut off the earth into a section inclosed between the rolling-wheel and the sides of the casing. As the rolling-wheel revolves the cam forces out other of the spring-cutters, and keeps them in such position, they carryin g up the several sections of the earth, until the upper end of the cam is reached; and'the foremost spring-cutter, being released, starts back, allowing the earth confined between it and the one next following to fall from the machine through the spout. The cam, as will be understood from the foregoing, has the greater part of its periphery concentric with that of the rolling-wheel. My invention further consists in the combination of the rolling-wheel, spring-cutters, and cam with the exterior casing, spout, and ditching-knife, producing the result above named.

1n the further description of my invention which follows due reference must be had to the accompanying drawing, in which- Figure 1 represents a side view of my in vention; Fig. 2, a plan of the same; and Fig. 3 a back view of the same.

Similar letters of reference indicate similar parts of the invention in all the views.

A is the rolling-wheel, revolving upon the fixed axle a, to which the shafts B are at tached. G is the casing, having the handles 0 and spout 01 secured thereto. suspended loosely from the axle a in such a manner that the operator at the handles can regulate at pleasure the cut of the ditchingblade. The blade'is attached to the lower part of the casing, and shown by D. The spring-cutters are represented by b, and formed of stout steel plates bent at a right angle, the cutting part passing through slots in the rim of the rolling-wheel, and the other being securely attached to the inner part of the wheel-rim. E is the cam, suspended fixedly from the axle a, the, lower front portion Having thus described my invention, what I claim as new, and wish to secure by Letters Patent of the United States, is-

1. The combination of the series of springcutters b with the rolling-wheel A and cam E, the wheel being loose and the cam fixed upon the axle a. substantially as and for the purpose specified.

2. The combination of the rolling-wheel A, spring-cutters b, andcam E with the casing O, ditching-blade D, and spout 01, substantially as and for the purposes specified.

In testimony whereof I have hereto subscribed my name this 10th day of April, in the year of our Lord 1873.

CHARLES M. BROWN.

Witnesses:

EDW. HAYES, WM. T. HOWARD.

The casing is,

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