An Improved Construction of Digging Machine..
Year: 1888

page_text: An Improved Construction of Digging Machine..
I PHILIP ARTHUR NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane, in the County of Middlesex, Patent Agent do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
The improved digging machine constituting the present invention is fully illustrated
in the accompanying drawing, where
Fig. 1 is a front elevation of the machine, a portion of the "off" or right hand
travelling wheel being broken away, to shew the fitting of the adjacent parts.
Fig. 2 is a plan view of the same, and
Fig. 3 is a transverse section of the machine.
The essential feature of the invention may be described as the combination with a
plough, which loosens the soil, of a series of rotating receptacles which raise the soil
and discharge it into a box mounted on travelling wheels, which box is fitted with a
bottom made to open and discharge the contents where ever required.
In these Figures, A is the box fitted with stud axles for receiving the travelling
wheels B. C.-The rim of the wheel B has double the width of the rim of the wheel C.-
Fitted within the wheel B are radial receptacles or shovels D for receiving each in
turn the surface soil raised by the plough F.--This plough, which underlies the off
end of the box A, is attached to a bar G, hinged to the back of the box. Standing
up from the front end of the bar G, and carried in fixed guides on the front of
the box, is a rack rod H, by means of which the inclination of the bar G is adjusted,
and consequently the dip of the plough share.
In gear with the teeth of the rack rod H is a pinion y, keyed to a short shaft g³,
which is mounted in bearings in a frame bolted to the front of the box.-Keyed to
this shaft is a worm wheel, in gear with which is a worm g³ keyed to cross shaft g³,
and having its bearings in the frame at the front of the box, and at the back of
;

page_text: the box. Fitted to the shaft g is a winch handle, by turning which, the dip of the
plough F is adjusted. To fix the rack bar when adjusted, and thereby to maintain the
plough in the desired position a pawl or bolt attached to the front of the box may be
used to lock into the teeth of the rack bar.
By referring to Fig. 1, it will be seen that the "off" end of the box A enters within
the rim of the wheel B, in such a manner that the soil raised by the rotating shovels D
will be delivered into the box A.
Mounted longitudinally, of the box A, is a shaft P, which carries, on its end nearest
the wheel B, an archimedean screw m.- -Rotary motion is imparted to this screw and
shaft by means of spur gears K and L, which receive their motion from the travelling
wheel C.-The object of this arrangement is to distribute the soil as it is deposited
in the box uniformly through the length of the box.-M is the draught pole fitted
to the box framing.
The bottom of the box is closed by louvre boards O, which may be operated
as desired by the handle 01, for the purpose of discharging the soil from
the box.
Having now particularly described and ascertained the nature of the said Inven-
tion and in what manner the same is to be performed, as communicated to me by my
Foreign Correspondent, I declare that what I claim is :-
A digging machine constructed and operating as above set forth, for the purpose of
raising and disposing of surface soil.