IMPROVEMENTS IN EXCRETA OR RECEPTACLE TUBS, AND IN THE
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
We, EDWIN GEORGE KIRK of 30 Trinity Street, Huddersfield, Yorkshire,
Sanitary Inspector and RICHARD FOSTER of No 2 Chadwick Yard, Birkby,
Huddersfield Yorkshire, Foreman Cooper do hereby declare the nature of our
invention for "IMPROVEMENTS IN EXCRETA OR RECEPTACLE TUBS, AND IN THE
" to be as follows:-
METHOD OF SECURING THE LIDS THEREON
The object of our Invention is to faston or secure the lids onto excreta tubs or
pails so as to make them air-tight and provent any escape of matter or effluvia
during transit through the streets.
For the purpose of carrying out our Invention we place a metal ring on the
upper rim of the tub which not only strengthens it, but serves to maintain its
circular shape.
On the side of the tub we attach a pair of links or lugs, and on the lid is a
crauked rod capable of being turned partially around by a hand lever.
The base of this lover rests upon a casting supported by and attached to a
number of flat springs, one end of each spring resting upon the lid, the circum-
ference thereof, so that when the cranked rod is operated by the lever, the springs
are all pressed upon the lid, which is secured thereby. In consequence of the
springs extending from the centre of the lid towards the circumference, the lid is
firmly pressed upon the rim of the tub, absolutely preventing the escape of matter
or gases.
TASKER & CROSSLEY,
Market Place, Huddersfield,
Agents for the Applicants. .

page_text: COMPLETE SPECIFICATION.
We, EDWIN GEORGE KIRK of 30 Trinity Street; Huddersfield, Yorkshire,
Sanitary Inspector, and RICHARD FOSTER of 2 Chadwick Yard, Birkby, Hudders-
field, Yorkshire Foreman Cooper, do hereby declare the nature of our invention
for "IMPROVEMENTS IN EXCRETA OR RECEPTACLE TUBS, AND IN THE METHOD OF
SECURING THE LIDS THEREON" 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 fasten or secure the lids onto excreta tubs or
pails so as to make them air-tight and prevent any escape of matter or effluvia
during transit through the streets.
Such being the nature of our invention we will now proceed to describe the
same more fully. Fig 1 in the accompanying Sheet of drawings is section of an
excreta tub having our improvements applied thereto and Fig 2 is plan view of
same. A is the tub on upper rim of which is fixed our additional metal ring B,
which as will be well understood serves to keep the tub cylindrical and to
strengthen it, whereby it is made more durable. C is the lid of the tub on the
underside of which are one or more elastic rings or washers D, secured to the lid
by means of nuts and bolts in the usual manner. On the top of the lid are
suitable fixings E for supporting a horizontal rod or shaft F carrying at each end
thereof a link G, the lower end of which catches hold of the hooks H attached to
the side of the tub. A central boss I is employed provided with six or other
suitable number of flat steel springs J, one end of the springs is attached by bolt
and nut to the central boss I, whilst the other ends thereof are all bearing upon
the lid of the tub. Upon the centre of the horizontal shaft F we fix a lever K tho
boss of which is made in the form of a cam or eccentric to the shaft and this boss
rests in a cavity formed in the top of the central boss I in such manner that when
the lever K is pressed downward as seen in Fig 3 that the cam on the boss thereof
will force the central boss downward thereby causing the springs J to force the lid
upon the rim of the tub, and as the springs radiate from the centre towards the
outer circumference of the tub, the pressure thereof is exerted near the rim thereby
hermetically sealing the tub, and absolutely preventing the escape therefrom of any
matter or gases.
Instead of employing the flat springs J for forcing the lid upon the tub, we may
employ a sheet steel dome,. or dished lid as shewn at L in Fig 4. Fixings E aro
attached to the lid C as in the previous case for supporting the horizontal shaft F,
so that as the lever K is turned over, the cam forces the metal dome L down upon
the edge of the tub, and makes the lid secure. Or the dome may have a projecting
flange and be made into the lid itself as shewn in section Fig 5, and plan Fig 6,
the shaft F in this case being supported by a bracket M attached to the top of
the lid.
This arrangement of lid is cheap in construction and effective in its operations.

page_text: 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
Firstly The application to excreta tubs of the metal ring B for the purpose of
forming an air tight joint, and keeping the tub cylindrical.
Secondly-In lids or covers for excreta tubs the employment of the boss I and
flat springs J, in combination with the cam K for forcing the lid upon the tub
substantially as horein shown and described.
Thirdly The employment of the cranked shaft F in combination with the
cam K and dished lid L for purposes aforesaid.