Apparatus for Collecting and Removing Floating Débris and the like in Rivers, Canals, and other Streams.
Year: 1890

page_text: Date of Application, 11th Jan., 1890
Complete Specification Left, 8th Oct., 1890-Accepted, 8th Nov., 1890
PROVISIONAL SPECIFICATION.
Apparatus for Collecting and Removing Floating Débris and the like
in Rivers, Canals, and other Streams.
I, FRIEDRICH CORRELL of Neustadt-on-the-Haardt, the Palatinate, in the Empire
of Germany, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to apparatus for collecting and removing débris and the like
in rivers, canals and other streams and is especially adapted for use in connection
with water wheels, turbines and pumps for the purpose of preventing foreign
substances from entering and clogging them.
My apparatus consists essentially of a grating extending from the bottom of the
stream to some distance above the top thereof and of a rake or comb operating in
connection with the grating for clearing the same of the débris which it collects.
For this purpose the upper ends of the bars of the said grating are advantageously
curved over a shaft on which are mounted suitably operated chain wheels carrying
chains on which are fixed a bar or bars having a series of teeth forming a rake or
comb (or rakes or combs) the said teeth passing through and moving in between
the bars of the grating. The grating extends in an inclined direction to a platform
which the substances collected by the grating and raised up by the moving
teeth are deposited, the said teeth being automatically cleared or cleaned as they
leave the grating in descending.
on
Dated the 11th day of January 1890
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Apparatus for Collecting and Removing Floating Débris and the like
in Rivers, Canals, and other Streams.
1, FRIEDRICH CORRELL, of Neustadt-on-the-Haardt, the Palatinate, in the Empire
of Germany, Engineer, 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 :-
This invention relates to apparatus for collecting and removing débris and the like
in rivers, canals and other streams, and is especially adapted for use in connection
with water-wheels, turbines and pumps, for the purpose of preventing foreign
substances from entering and clogging them.
My apparatus consists essentially of a grating extending from the bottom of the
stream to some distance above the top thereof; and of a rake or comb operating in
connection with the grating for clearing the same of the débris which its collects.
For this purpose the upper ends of the bars of the said grating are advantageously
curved over a shaft on which are mounted suitably operated chain-wheels, carrying
chains on which is or are fixed a bar or bars having a series of teeth forming a rake
or comb, or rakes or combs, the said teeth passing through and moving in between
the bars of the grating. The grating extends in an inclined direction over a platform
on which the substances collected by the grating and raised up by the moving teeth
are deposited, the said teeth being automatically cleared or cleaned as they leave
the grating in descending.
In order to enable my invention to be fully understood I will describe how it can
be caried into practice by reference to the accompanying drawings, in which-
Figure 1 is vertical section of an apparatus constructed according to my invention

page_text: for collecting and removing floating débris and the like in rivers, canals and other
streams.
Figure 2 is a front elevation of the same.
Figures 3 and 4 are views of the inner and outer sides of one of the end supporting
frames of the apparatus.
Similar letters in all the figures indicate similar parts.
a, a', a represent the grating which is fastened at any desired angle to arms b
fixed to the end frames c, as shewn in Figure 1. The bars of the grating consist of a
straight part a, a curved part a' and a straight part a², the end of the latter part
being attached to an angle bar d fixed to the end frames at some distance above the
platform e, so as to give strength and rigidity to this part of the grating, afford
ample room for the deposit of the collected material and allow the rakes or combs in
revolving to more quickly and easily leave the grate bars.
Or the part a² of the grate bars may extend down to the platform e and be fixed
thereto. The grating may be conveniently supported upon pedestals fixed to the
platform e, which latter may be supported upon columns fixed in the bed of the
stream.
Suitable distance pieces are placed between the bars of the grating to keep
them properly spaced.
fis the rake or comb fitted to a bar g, the ends of which are provided with guide-
blocks g¹ moving in guide-grooves & made in the end frames c, whereby the teeth of
the rakes or combs are prevented from leaving the grating and from being borne
down or tipped over by the pressure of the material. i, i are the chains on which is
mounted the bar g, and j, j are the chain-wheels which carry the chains i, i, the
wheels being mounted on a shaft k revolving in the end frames c, and the wheels j¹
being mounted on a shaft k¹ fitted in adjustable bearings to enable the chains i to be
slightly loosened or tightened by turning the adjusting screws m. n is a tie-bar
uniting the two end frames c.
Motion is communicated to the chain-wheels and rake or comb by hand or by power
from the platform e or from the shore as will be well understood.
In cases where a very high grating is required several of the said. rakes or combs
can be employed so that the teeth of a comb shall be always between the bars of the
grating, in order to keep the latter in proper shape.
Large gratings are preferably constructed in several sections connected by
suitably shaped T or L irons or by cast-iron distance pieces, whereby the dismounting
of the parts can be easily effected.
The bar g carrying the rake or comb f moves upwards at the back of the grating,
and the teeth pass between the bars of the grating and carry all dirt, leaves, wood, etc.,
which may have been collected by the grating to the top: as the rake or comb f
moves onwards the substances are thrown onto the platform e or slide down the
back a² of the grating and the water adhering to the leaves or pieces of wood is
allowed to drain off.
The rake or comb of then passes downwards and gradually quitting the part a³ of
.the grating leaves all foreign matters behind it. The rake or comb thus becomes
cleared and after a certain space of time again enters the grating and clears it
and so on.
For removing the substances falling from the grating onto the platform e I can
arrange a gutter at a suitable distance from the grating, leading to a suitable
carrier.
The teeth of the rake or comb f are made of considerable thickness at the back
· so as to form an inclined plane which facilitates the removal of substances such as
pieces of wood which may become jammed in between the bars.
Where side walls exist to which the grating can be fixed, the end frames e with
their guide-grooves / may be replaced by simple guide-rails or bars.
In large gratings I find it advantageous to employ guide-grooves not only in the
end frames but also at certain intervals between the grate bars,
t

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An apparatus for collecting and removing floating débris and the like in rivers,
canals and other streams, comprising a grating the bars of which are curved over
a shaft fitted with chain-wheels over which pass chains carrying clearing combs or
forks, the said bars being then inclined and having their ends attached to an angle
bar above the platform or to the platform itself, so that the substances raised by the
comb or rake are carried backwards and are discharged onto the said platform, the
teeth of the comb or rake being automatically cleaned as they leave the bars,
substantially as hereinbefore described with reference to the accompanying drawings.
2. The improved apparatus for collecting and removing floating débris and the
like in rivers, canals and other streams hereinbefore described and illustrated in
the accompanying drawings.
Dated the 8th day of October 1890
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.