Improvements in Excavating Scoops.
Year: 1891

page_text: Date of Application, 6th Aug., 1891
Complete Specification Left, 1st Jan., 1892-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Excavating Scoops.
JOHN EDWARD BROWN Alton Hampshire Contractors Agent do hereby declare
the nature of this invention to be as follows:-
The scoop shall be of any suitable shape or material and carried on broad wheels
or sledges, or both, in a suitable shape for mounting a band with a load of soil or
mud. The front part is open, and the back is caused to open when taken into
operation on the soil, by means of wire ropes and drawn forward until full this
back or door is closed from the opposite direction also by wire ropes, passing over
rollers on the sides of the scoop. The bottom of the scoop shall be fixed to the
door by joints and draw out under a suitable scraper to clear away the contents at
each time of emptying. The scoop may be double or single acting, but in
every case the bottom shall slide from under the contents which are scraped off as
described by the scraper.
Dated this 6th day of August 1891.
JOHN EDWARD BROWN.
COMPLETE SPECIFICATION.
Improvements in Excavating Scoops.
I, JOHN EDWARD BROWN of The Butts, Alton, Hampshire, Contractor's
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 :-
My invention relates to a machine for excavating mud-or soil, constructed and
operated as I shall describe referring to the accompanying drawings.
Fig. 1 is a longitudinal section and Fig. 2 is a plan of the machine.
Two side frames A. A baving their lower edges shaped as sledge runners, are
connected by an arch B above and by a cross bar C at their lower front part, and
are mounted on travelling wheels D. In the lower parts of the frames A are
slots in which can slide the ends of a cross bar E. To this bar is attached a
plate F, to the front of which is hinged at a plate or flap G, having its front
edge sharpened when necessary, and having side flanges with, several holes for
receiving eyes H. To these eyes are attached the branches K K of a front chain
and two branches L L of a hind chain, the latter being carried over guide rollers M
and N. Also to eyes at OO, on bars extending back from the plate F, are
attached two other branches P P of the hinder chain. The apparatus is worked
as follows.
When in the position shewn in Fig. 1 it is pulled forwards by the chains K,
worked by a hauling drum or otherwise, the front edge of the plate G penetrates
the soil, the displaced portion of which Z collects on the plate G. By fixing the
eyes H more or less back the edge of G is made to cut more or less deeply into
the soil.
When this plate G is sufficiently charged, the chains K are left slack and the
chains L and P are pulled drawing the bar E and plate F back and canting the
plate G upwards on its hinges funtil finally these parts occupy the dotted positions
marked in Fig. 1 respectively E¹, F', ', G' and K' the excavated material being
thus made to occupy the angle between G¹ and F' as indicated by Z'. In this
condition the machine is hauled by the back chains L and P to the place where the
excavated material has to be deposited; then, on letting the back chains slack and

page_text: pulling the front, the plates F and G are drawn forwards but as the plate F
passes
under the fixed bar C, this operates.as a scraper preventing the material Z from
being drawn forwards and causing it to be deposited behind the bar E.
As shewn in the drawing the plate F is of such length that when the bar E is
drawn back to E' it does not reach the end of the slot. In this case a stop R is
provided to arrest E when the joint reaches the position. The plate F
however be made of such length that when E is drawn back it shall reach the
end of the slot, the joint f being at the stop R being in this case
unnecessary.
may
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
An excavating scoop having a body consisting of two sides mounted on travelling
wheels and of a horizontally sliding bottom plate to which is hinged a flap arranged
for cutting the soil in front of it, these parts being connected by front and back
chains to suitable hauling apparatus, substantially as and for the purpose.
set forth.
Doted this 26th day of Oatahan 1001
ABEL & IMRAY,
Agents for the Applicant.