An Improved Dredger for Cleaning Out Lakes, Ponds, and the like.
Year: 1891

page_text: Date of Application, 25th Mar., 1091
Complete Specification Left, 28th Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Dredger for Cleaning Out Lakes, Ponds, and the like.
We EDWARD WARD Carpenter and JOHN LUCK Blacksmith both of Little
Houghton in the County of Northampton do hereby declare the nature of this
invention to be as follows:-
The object of our invention is to provide a dredger for cleaning out lakes ponds
and the like, so that the same can be used either by manual, horse or steam power,
without drawing off the water.
In carrying out our invention we provide a scoop or wrought iron pan hereinafter
called a dredger, the back of which is semicircular, and at each end and the back
part thereof it is perforated throughout so as to allow water to escape when in use.
To the front edge of the dredger a steel plate is fixed which is called a knife.
Close to the steel plate on each side of the dredger, slot holes are provided to
which are affixed two chains, so adjusted as to enable the dredger to be worked in
any depth of water.
On the top a round bar is fixed with a catch arrangement so as to fall in and
out of gear, and to which are attached two chains.
The whole of the four chains are brought in front of the dredger and secured
to a ring to allow the dredger to be properly drawn out, when in use.
A loop is attached at the back of the dredger, through which a rope is passed
for drawing the dredger back from the opposite side of the lake or pond when
such dredger has to be emptied.
We also attach to each side of the dredger an arm for the purpose of emptying
the dredger.
Dd
21al
1001
S. C. BEEL,
30, Newland, Northampton, Agent for the Applicants.
COMPLETE SPECIFICATION
An Improved Dredger for Cleaning Out Lakes, Ponds, and the like.
We EDWARD WARD Carpenter and JOHN LUCK Blacksmith both of Little
Houghton in the County of Northampton 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 object of our invention is to provide a scoop or dredger for cleaning out
ponds lakes and the like of such a character as will enable it to be worked by
manual horse steam or other power without the necessity of drawing off the water
the dredger being started from one bank of a lake or pond or of a river and the
motive power being on the opposite bank arrangement being made for returning
the scoop or dredger after being hauled out and emptied.
The accompanying drawing is a general perspective view of our scoop or dredger
placed out of its working position so as to better explain its construction and
referring to the letters marked on the said drawing we will now proceed to further
describe our invention.
We form a metallic scoop or pan A of shape as shown and perforate the back B
and ends or sides C C the back B is preferably semi-circular and the front being
brought forwards to form an acute angle with the tops D of the sides and
terminating in a steel or other hard plate E which forms the knife or cutter and
this may be bolted on or attached in any well known manner.

page_text: At or near the front we form slots or lugs F for the purpose of attaching two
chains G G terminating in a link or loop H. At the back we fix arms J J
projecting rearwardly (or upwardly when in work) and in these and in
bearings we mount a spindle K free to revolve therein but controlled by
ratchet wheel L and lever and pawl M. At each end of this spindle is attached
one end of two other chains N N the opposite ends being linked through the
loop H before described. Each end of the spindle is squared as at O to receive
the socket of a handle or winch and when turned the chains N N are wound
thereon and the scoop being held by chains in front is tilted forward and emptied.
Arms P P are fixed on tops of sides upon the ends of which the scoop rests when
tilted.
To the back and extending over a portion of the bottom we secure a looped
bar R on which runs a ring S to which may be attached a chain rope or the like by
which the dredger is hauled back again.
An engine horse or other power being placed on one bank of the pond or water
to be dredged and a steel or other rope or chain secure to the loop H the dredger
is started from the opposite bank the means for hauling back being also attached
to ring S the scoop is drawn along the bottom the cutting angle being previously
adjusted by tightening or releasing the chains N N by means of the spindle K the
water escapes through the perforations T T T T and the solid matter retained
until the scoop is hauled out and emptied when it is pulled back ready for another
operation by rope or the like attached to ring S.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
1. In scoops or dredgers the use of chains regulated by spindle or like means
such as K and a looped bar at rear such as R for attachment of withdrawing
tackle substantially as herein before described and as illustrated by the accom-
panying drawing.
2. The scoop or dredger substantially as hereinbefore described and as illustrated
ccompanying drawing.
Dated this 28th day of December 1901
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, London, W.C., Agents for the Applicants.
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, London, W.C., Agents for the Applicants.