Improvements in Apparatus for Dredging, Excavating and Road Scavengering.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Dredging, Excavating and Road
Scavengering.
WILLIAM RICHARDSON, 11, Coulston Road, Shrewsbury Road, Contractor's Manager,
East Ham, Essex, do hereby declare the nature of this invention to be as
follows:-
For the purpose of raising and dis-charging mud sand and ballast by means of a
series of buckets or scoops, attached to an endless chain passing over a driver wheel
the buckets or scoops working within the radius of the driver wheel and by a
system of expansion in their upward course assume a position to discharge their
contents into any cart or vessel provided for its reception.
In constructing the foregoing the frame work enclosing the buckets or scoops
consists of a square trunk of any length, the front and back being open but
bracketed to the sides, on the inner sides of the trunk is wrought a channel or
groove of sufficient distance from the edge, and of adequate depth and breadth to
embed the chain that passes over the driving wheel to which the buckets or scoops
are attached by a stud in each end passing thro the chain and being either screwed
or clenched. On the lower part of each end of the bucket nearest to the front edge
of the sides is fixed a small wheel which on coming in contact with a rail expanding
in width raised above the surface of the side and close to the chanell, by wich
means the bucket commences to reverse its position until caught on the back by a
studed belt or endless chain, traveling at a proportinal speed beyond the front or
primary chain, thus retaining the bucket in a position to complete the delivery of
its contents, after which the bucket falls back into its normal position and passes
over a barell guided by a quadrant at each end and proceeds down the back of the
trunk to refill itself at the bottom being all the time regulated by studs inserted
driving wheel, whereby the bucket is held in position during its griping operation.
For road purposes at the lower end of this trunk is fitted a carriage having a
plane under surface running on four wheels, being square at the back and having in
its front a mouth piece after the shape of a shovel. Immediately over this comes a
revolving rake forcing the contents into a well provided in the carriage, thro which
the buckets pass in their revolutions and pick up its contents, discharging the same
into carts, to which the carriage is hooked at the top, at the bottom the two back
wheels are connected by an endless chain to a studed flange fastened to the stock
of the wheel, having a centre either projecting or inserted, between which and the
carriage comes a pair of shafts having their ends moveable placed on the inserted or
projecting centre, the action of wich provides the neccessary power to put the
machinery in motion and lift mud and the like.
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page_text: Improvements in Apparatus for Dredging, Excavating and Road
Scavengering..
WILLIAM RICHARDSON, No. 11, Coulston Road, Shrewsbury Road, East Ham,
Essex, Contractor, do hereby declare the nature of this invention and in what, manuer
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention is for the purpose of raising and discharging mud sand and ballast
by a series of buckets or scoops, attached to an endless chain working between the
two sides of a ladder Fig. 1, to any definite height, either from the bed of the river,
or the surface of the road for which last purpose there is a carriage running on four
wheels, having a scraper projection in front of a well contained within the carriage,
the ladder resting thereon between two wheels of the carriage, sufficiently. clear of
the bottom of the well to allow the buckets passing thro and take up the
material deposited therein by a revolving rake placed over the scraper part of the
carriage in front, and deliver the material by means of the ladder into carts, behind-
which the carriage is drawn, and which the annexed drawings clearly illustrate, and
similar letters of reference will indicate similar parts of the invention.
Fig. 1 represents the inner surface of one side of the ladder a, bounded by the
groove g and g embedding a chain c. At the connection of each for every inter-
mediate link of the chain c a bucket or scoop b is attached, which in operation rises
from the bottom of the ladder a to a definite point about p when a small wheel on the
bottom part of both ends of the bucket b comes in contact with a rail fastened
obliquely on the inner surface of both sides of the ladder a, (the rail being equal in
thickness to that of the wheel u imparting a rotary action to the bucket 6 taken up
and continued by the ruffle band h in conjunction with the ruffle plater on the back
of the bucket (the ruffle band consisting of a flat linked chain fitted with studs at
each link connection) whereby the buckets are overturned and discharge. their
contents.
Fig. 2 gives the outline of one of the outer sides of the ladder a, showing the connec-
tion, between the wheels 8¹ Fig. 1 and s¹ Fig. 2. The top wheel y shown thereon,
being fixed on the end of the shaft f of the driving wheel i. The lower wheel s¹ being
fixed on the end of its own shaft, f passing thro the ladder a from side to side,
being worked by the chain e. At midway in this shaft f between the two sides of the
ladder a the wheel 81 Fig. 1 is fixed, thereby causing the ruffle band h Fig. 1 (passing
over this wheel s¹ and a similar wheel s Fig. 1 running loose on the shaft f of the
driving wheel i it obtains proportonaly increased speed over and above that of the
bucket chain c and turning the bucket over as in Fig. 1, the bucket afterwards
falling back into its normal position, and resumes its course over the barrel of the
driving wheel regulated by studs & inserted in the barrel of the driving wheel i.
Fig. 3 shows the carriage scraper for road scavenging also a outline of the ladder a
placed in position.
The carriage consisting of a solid casting running on four wheels, two being
on each side of the carriage w and w (the carriage being equal in breadth to that
of a cart,) and having a shovel shaped projection o embracing the whole width of the
carriage over this projection o is placed a revolving rake m forcing the accumulated
material into a well k enclosed within the carriage semi-circular in shape at the
bottom extending from side to side of the carriage, and equal in superficial area to 4
the outside dimensons of the ladder a having sufficient depth to admit the buckets b
passing thro the well k, the ladder a being placed thereon with the wheel y (which
is on the shaft x) resting on and between the carriage wheels w and w and on the

page_text: duplicates of these wheels on the opposite side of the carriage. The whole being set
in motion by the coupling chain e passing over link grooved wheels fixed to the axles
of the wheels w¹ and similar wheels fixed on the stock of the cart wheel, behind which
cart the carriage is drawn or may be substituted by the coupling rod n.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
Firstly. The ladder and buckets described and illustrated in Fig. 1 a and b.
Secondly The turnover wheels 8 and 8¹ also their counterparts in Fig. 2 described
and set forth in Fig. 1 and 2.
Thirdly The scraper carriage with the revolving rake m described and shown
in Fig. 3.
Dated this 29th day of October 1897.