US994781A - Ditching-machine. - Google Patents

Description

0. G. PARKS. DITOHING MACHINE. APPLICATION FILED NOV. 11, 1910.

994,781 I Patented June 13,1911.

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'0. G. PARKS. DITGHING' MACHINE. APPLICATION FILED Nov.11,191o.

994,781. Patentd June 13, 1911.

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llllE OTTO CLIFF PAR-KS, OF BILLINGS, MONTANA.

DITGHING-MACI-IINE.

To all whom it may com com:

Be it known that I, Orro CLIFF PARKS, a citizen of the United States, residing at Billings, in the county of Yellowstone and State of Montana, have invented new and useful Improvements in Ditching-llfaehines, of which the following is a specification.

This invention relates to ditching machines, and it has for its object to construct a device of this class which may be advantageously employed in the construction of irrigation ditches,

A further object of the invent-ion is to construct a ditching machine including a wheel-supported frame and a vertically adjustable ditching plow of simple and improved construction.

Still further objects of the invention are to simplify and improve the general construction and operation of a machine of the character outlined above.

With these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claim.

In the accompanying drawings has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired.

In the drawings,-Figure 1 is a side elevation of a ditching machine constructed in accordance with the invention. Fig. 2 is a top plan view of the same. Fig. 3 is a sectional side elevation. Fig. 1 is a rear elevation. Fig. 5 is a sectional detail view taken on the line 55 in Fig. 1. Fig. 6 is a sectional detail view taken on the line 66 in Fig. 3.

Corresponding parts in the several figures are denoted by like characters of reference.

The frame structure of the improved machine is supported upon an axle comprising a casing 1 which is of tubular form, preferably rectangular in cross section, said casing affording a housing for a pair of rack bars 2-2 having spindles 3 upon which the transporting wheels 4 are mounted for -rotation. The frame includes upper and lower side members 5 and 6, the latter of which Specification of Letters Patent.

Application filed November 11, 1910.

Serial No. 591,809.

Patented June 13, 1911.

are firmly supported upon and connected with the axle casing, while the upper side pieces 5 are supported by means of uprights 7 rising from the lower side members 6; the latter have forwardly converging extensions 8 adjacent to the front ends of which a draft link 9 may be suitably attached. The frame structure is provided with suitably disposed bearings for two vertical shafts 10 provided adjacent to their lower ends with pinions l1 meshing with the WheeLca-rrying rack bars 2, which latter are thus capable of adjustment to space the transporting wheels different distances apart. The shafts 10 are provided adjacent to their upper ends with bevel pinions 13 meshing with bevel pinions 14 upon suitably supported horizontal shafts 15 carrying hand wheels 16, whereby they may be rotated for the purpose of rotating the shafts 10 to effect the desired adjustment of the transporting wheels. The

frame supports a platform 17 upon which the operator may be stationed.

Suitably supported adjacent to the converging front ends of the side members 8 of the frame is a vertically disposed housing 18 in which a rack bar 19 is guided for vertical movement. Suitably swiveled upon the lower end of the rack bar is a forked arm 20 carrying a caster wheel 21 which serves as a guide wheel. A shaft 22 supported for rotation in rear of the rack bar carries a pinion 23 meshing with said rack bar; said shaft also carries a worm wheel 2%. meshing with a worm 25 upon a suitably supported inclined shaft 26 carrying a hand wheel 27 which is convenient to the operator, who by means of said hand wheel may rotate the shaft 26, thus transmitting rotary movement to the shaft 22 carrying the pinion 23, whereby the rack bar 19 carrying the caster wheel may be vertically adjusted. Suitably mounted upon the rack bar 19 above the wheel-carrying arm 20 is a collar 28 having laterally extending trunnions 29 upon which the arms or side members of a yoke 30 are hingedlysupported; said yoke being provlded w1th a rearwardly extending arm or bracket 31. The ditching plow 82 is provided w1th a cross bar 83 connecting the landside with the mold board of said plow, said cross bar 33 being connected with the bracket 31 of the yoke 30, said bracket and yoke together constituting a draft member, whereby the ditching plow is connected with the vert1- cally adjustable rack bar. Upwardly extending arms 34 are connected, respectively, with the mold board and the landside of the plow, each of said bars being provided adjacent to its upper end with a plurality of apertures 25 for the passage of the connecting member, such as a pin or bolt 36, whereby said bar 34 is pivotally connected with a lever 37 fulcrumed upon the frame of the machine, and whereby vertical adjustment of the plow may be effected. Each of the hand levers 37 is provided with a stop member 38 adapted to engage a suitably supported segment rack 39, whereby the parts may be secured in adjusted position. Each of the hand levers 37 is preferably provided with a slot, as shown in dotted lines at 40 in Fig. 1 of the drawings, for the passage of the pin or connecting member 36 in order to enable said connecting pin to follow the arcuate movement of the lever.

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood by those skilled in the art to which it appertains. As will be readily seen, the ditching plow is capable of vertical adjustment with relation to the frame so that a ditch or excavation of the desired depth may be made,

while for transportation, the plow may be raised or lowered to a suitable distance above the ground.

The construction is simple, and the device is thoroughly efficient for the purposes for which it is intended.

Having thus described the invention, what is claimed as new, is:

In a device of the character described, a frame including forwardly converging side members, a housing supported vertically adjacent to the front end of the frame, a rack bar supported for vertical adjustment in said housing',-a transversely disposed rack having a rack-engaging pinion and a worm gear, an inclined shaft having a hand wheel and a gear-engaging worm, a caster wheel supported adjacent to the lower end of the rack bar, a collar upon said rack bar having laterally extending trunnions, a plow having a cross bar, a member including a yoke connecting said cross bar with the trunnions upon the collar, and means for effecting vertical adjustment of the plow.

In testimony whereof I afliX my signature in presence of two witnesses.

- OTTO CLIFF PARKS. Witnesses G. C. CIsEL, JAMES L. DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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