US1811179A - Dirt mover - Google Patents

Description

June 23, 1931. B. JACK, JR 1,811,179

DIRT MOVER Filed April 8, 1930 2 Sheets-Sheet 1 INVENTOR BLLZZer clack c/r.

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ATTORNEY June 23, 1931. B. JACK, JR 1,811,179

' INVENTOR ButLez' Jack el ATTORNEY Patented June 23, 1931 UNITED STATES PATENT OFFICE BUTLER JACK, JR OF SACRAMENTO, CALIFORNIA DIRT MOVER Appl ieationfiled April 8,

implement of this type adapted to be drawn by a tractor and in which the movements of the blade or bucket are controlled by hydraulic means.

The principal object of my inventionis to provide an implement of this character and type so constructed that the hydraulic control mechanism is so mounted that it is kept entirely out of the path of the dirt at all times and is in a very low position or immediately adJacent the main frame. This avoids the use of any relatively high and bent-up extensions on the frame in order to support the control mechanism and both reduces the weight and increases the simplicity of the structure as a whole. The bucket or blade is so disposed relative to the main frame as to lessen the drag on the tractor, and so as to allow said bucket to quickly fill to capacity with the forward movement of the tractor, while keeping the cutting edge close tothe surface of the ground so that the dirt cannot sift out when dragging the load.

This construction and arrangement also eliminates the necessity of adding weight to the structure when operating in hard ground.

As afurther object of this invention I have provided a platform on the mainframe rearwardly of the bucket so as to provide. a convenient support for an extra operatorwhen needed for accurate grading to stakes and when carrying out similar operations. I have also provided the main frame with a tongue so arranged as to permit the tractor readily turning at a full right angle relative to the implement; while the supporting wheels of the implement are disposed relative to the bucket so that the latter is considerably wider than the tread or gage of the wheels. This feature enables the implement to operate on a fill so that while the blade may extend to the actual side edge of the fill, the wheels will be maintained spaced from such fill, thereby pre-f; is covered by a platform 10 on which an opventing possible slipping or settling of the implement due to the usual loose condition of the dirt at the sides of a new till.

1930. Serial 110,442,517.

A further object of the invention is to producea simple andinexpensive device and yet one which will be exceedingly effective for the purpose for which it is designed. These objects I accomplislrby means of such structure and relative arrangement of parts as willfully appear'by a perusal of the following specifications and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views Fig. 1 is a perspective view of the imple-' 'ment looking toward the front showing the bucket in its dumping position. Fig.2 is a similar view showing the bucket '111 its operating position.

Fig. 3 is a top plan View of the implement. 1 I

Referring now more particularly to the charactersof reference on the drawings, the

numeral 1 denotes the main frame of the implementa substantially rectangular and rigid structure provided at the front end with a tongue 2 rigid therewith and having a clevis 3 adapted for direct connection with the draw-head of a tractor. Disposed in the frame just rearwardly of the front end of the'same is a bucket which as usual in im plemen'ts of this character comprises side plates 4, a back plate '5 and a forwardly angled blade 6 depending from the lower end of the latter. V The frame is disposed in a plane substantially midway of the height of the side plates when the bucket is in a normal operating position; the plates 4 being pivoted at their forward ends ontothe sides of the frame 1 by 'trunnions 7. i

'Rearwardly' of the bucket the sides of the frame 1 converge somewhat asclearly shown in Fig. 3, and form supports for ground bearing wheels Swhose axle is jou'rnaled in bearings 9 mountedon the frame; the wheels beingset somewhat closer to each other than 'the width of the bucket for the purpose set forth in the preamble. The frame area rearwardlyof the bucket and between the wheels erator may stand,

Superimposed on the platform intermediate the front and rear ends of the same are transversely extending and longitudinally alined shafts 11 which are journaled in bearings 12 supported by longitudinally extending and transversely spaced frame beams 13 secured to the main frame (see Fig. 8).

From the outer or opposite ends of these shafts forwardly angled arms 14: project upwardly, these arms at their upper ends being connected to rigid links 15 which extend forwardly and downwardly to pivotal connections with ears 16 mounted on the rearsurface of the back plate 5 intermediate the top and bottom thereof. From the inner adjacent ends of the shafts 11 closely spaced arms 17 project upwardly and rearwardly; said arms at their upper ends being-connected in common to a piston rod 18 projecting from a cylinder 19 which is disposed between the shafts 11 and the bucket. The cylinder carries side trunnions 20 toward its forward end which are journaled in brackets 21 upstanding and supported from the central ones of the frame beams 13. Liquid under a pressure generated by a suitable apparatus carried by the tractor is conveyed to either end of the cylinder by suitable conduits. The major length of these conduits is in the form of rigid pipes 22 strapped closely against the frame and so as to extend from behind the bucket to and along the tongue at the front, as shown in Fig. 3. At their forward ends the conduits terminate in flexible portions 23 adapted to be connected to the tractor in mounted conduits leading from the pressure generator. At their rear ends said conduits terminate in similar flexible portions 24: connected to the front and; rear ends of the cylinder. By this arrangement the conduits are kept out of the way of the dirt and are disposed so as to be protected by the frame so that they are not liable to be bent or otherwise harmed.

At the same time provision is made for the necessary freedom of swinging of the cylinder and the turning movement of the tractor relative to the implement.

The cylinder and the connections between the same and the bucket being all rearwardly of and below the top of the bucket, they do not interfere with the movement of the dirt and they never become cloggec with dirt. The frame being relatively low the tract-or exerts a straight pull on the same, lessening the strains on the tractor and permitting the bucket to quickly fill to capacity. Accurate and quick control of the setting of the bucket may be had by the hydraulic apparatus which is so arranged that the bucket may be readily raised and lowered about the trunnions 7 as an axis, as will be evident. The

tongue and the front cross beam of the frame are sufiiciently rigid so that no diagonal braces between the tongue and frame are necessary. Relatively right angled corners are therefore formed between the tongue and said cross beam on both sides of the same of sufficient area to receive the rear wheels of the tractor therein without interference even when the latter is disposed at a full right angle relative to the implement. This enables the outfit to be turned in a very short radius as will be obvious.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention as defined by the appended claims.

Having thus described my invention what Iclaim as new and useful and desire to secure by Letters Patent is 1. A dirt mover including a horizontal frame, a bucket mounted in the frame, pivot connection means between the bowl adjacent its forward end and the sides of the frame, a transverse shaft supported from and adjacent the frame rearwardly of the bucket, an arm projecting upwardly and rearwardly from said shaft, a piston rod extending forwardly from the upper end of said arm, a hydraulic cylinder from which the rod projects supported from the frame between the shaft and bucket, and connections between said shaft and the back of the bucket for raising and lowering the same with the movement of the rod and the turning of the shaft.

2. A dirt mover including a horizontal frame, a bucket mounted in the frame, pivot connection means between the bowl adjacent its forward end and the sides of the frame, a transverse shaft supported from and adjacent the frame rearwardly of the bucket, an arm projecting upwardly and rearwardly from said shaft, a piston rod extending forwardly from the upper end of said arm, a hydraulic cylinder from which the rod projects supported from the frame between the shaft and bucket, another arm extending forwardly and upwardly from the shaft, and a link extending downwardly from the upper end of said other arm to a connection with the back of the bucket.

In testimony whereof I afiix my signature.

BUTLER JACK. JR.

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