Improved Machinery or Apparatus for Cleaning Sewage and other Matter off Gratings
Year: 1896

page_text: Date of Application, 22nd Dec., 1896
Complete Specification Left, 22nd Sept., 1897-Accepted, 22nd Dec., 1897
UVIDIUNAL DI EVITIC
"Improved Machinery or Apparatus for Cleaning Sewage and other
Matter off Gratings."
I, JOHN SMITH, of The Grove Iron Works, in the County of Surrey, Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention consists in the employment of a comb or cleaner to travel over the
stationary grating so as to scrape the material up and discharge the same over the
top of the grating.
A stationary comb is fixed on the top to clean the travelling cleaner.
This stationary grating is fixed in a channel or stream for screening sewage or other
matter in the water.
The travelling comb in cleaner works in suitable guides.
"Improved Machinery or Apparatus for Cleaning Sewage and other
Matter off Gratings."
I JOHN SMITH, of the Grove Iron Works, Carshalton, in the County of Surrey, 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 improvements in the machinery or apparatus used for
cleaning sewage and other matters off gratings and consists essentially in the employ-
ment of a comb or cleaner which travels over the stationary grating employed in the
process of purifying sewage and the like so as to scrape the material up and discharge
the same over the top of the grating. In connection therewith there is also a
stationary comb fixed on the top to clean the travelling comb. In the process of
purifying sewage &c. alluded to the stationary grating is fixed in a channel or stream
for screening the sewage or other matter in the water. And in order that this
invention may be fully understood I will describe same with reference to the
accompanying drawings and the figures and letters of reference marked thereon, that
is to say:
Fig 1 is a sectional elevation of the apparatus,
and clavation of come and

page_text: Fig 3 a side elevational view of the upper drum over which the travelling comb
passes when operating.
Figs: 4 and 5 are respectively detail views of the comb and grating.
a, a, are the combs conveniently carried by the chains b passing over pulleys or
wheels carried upon the spindles c of the drums d. a¹ is the stationary grating above
alluded to which the travelling combs a traverse & clean from sewage & other
matters accumulating thereon. These spindles c take suitable bearings in the side
frames e of the apparatus (see Fig: 2) and as shewn particularly in Fig: 3 the top
drum is fitted with an adjustable tightening arrangement. Around these drums da
perforated metal screen revolves straining the liquids in the channel and conveying
the solids over top druin on to the scraper g see Fig: 3 off which it falls into sludge
cart. The scraper g is suitably serrated to permit of the passage of the travelling
combs a.
The remainder of the operation consists in cleaning the metal screen f by two
revolving brushes h, h¹, one of which h may be used as shewn outside and the
.other h¹ inside the screen f the outer one of which is automatically combed by the
stationary comb k. Fig: 3 is the driving pulley which may be placed either side
of the apparatus convenient and by band be driven from any suitable motor.
Fig 5 is a plan of the grating a and Fig 4 is an elevation of a portion of one of
the travelling combs a.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that
what I claim is :-
1. The improvements in machinery or apparatus for cleaning sewage or other
matter off gratings, substantially as hereinbefore decribed.
2. In machinery or apparatus for cleaning sewage and other matters off gratings
the combination of combs a, chains b, wheels or pulleys carried upon the spindles c
of. the drums & working in the side frames e, and the metal screen f travelling over
the drums d, arranged and operating substantially as described and shewn.
Dated this 22nd day of September, 1897.
HUGHES SON & Co
38. Chancery Lane, W.C. Agents for the applicant.