Improvements in the Manufacture of Earthenware Flushing Cisterns.
Year: 1899

page_text: Date of Application, 12th Oct., 1899
Complete Specification Left, 12th July, 1900-Accepted, 18th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Earthenware Flushing Cisterns.
I, SAMUEL HUNT ROWLEY, of Swadlincote, in the County of Derby, Earthen-
Manufacturer, do hereby declare the nature of this invention
ware
to be as follows:-
Flushing cisterns for water closets or the like have hitherto been generally
made of iron, but the use of iron has the serious drawback that rust therefrom is
found to permanently stain the adjoining walls also the inside of the closet or
urinal basin. Earthenware cisterns have recently been sometimes used instead of
iron, but they are too expensive where economy has to be considered. These
earthenware cisterns have been made of the same shape as the ordinary iron
cisterns that is to say rectangular and owing to this rectangular form they occupy
considerable space in the kiln while being fired, and also in transport, because
they cannot fit or nest one inside another.
Now according to my invention I mould the cisterns of such form that they
will nest one inside another whereby a given number of them will occupy together
with the intervening saggars a space in the kiln less than half of that required
in the case of rectangular cisterns of the same capacity, the cost of firing being
reduced at least 50 per cent. Again in packing for transport the space occupied
is reduced at least one half with a corresponding reduction in the charge for
freight.
In carrying out my invention I mould the cisterns with both the sides and
the ends sloping gradually inwards from top to bottom. The cisterns are also
preferably moulded with an out turned flange at the top. This flange serves to
keep them in shape during the firing and also gives a somewhat ornamental
appearance to the finished cistern.
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
_Chartered Patent Agents.
Improvements in the Manufacture of Earthenware Flushing Cisterns.
I, SAMUEL HUNT ROWLEY, of Swadlincote, in the County of Derby, Earthen-
ware Manufacturer, 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:-
-
Flushing cisterns for water closets or the like have hitherto been generally

page_text: made of iron, but the use of iron has the serious drawback that rust therefrom is
found to permanently stain the adjoining walls also the inside of the closet or
urinal basin. Earthenware cisterns have recently been sometimes used instead of
iron, but they are too expensive where economy has to be considered. These
earthenware cisterns have been made of the same shape as the ordinary iron
cisterns that is to say rectangular and owing to this rectangular form they occupy
considerable space in the kiln while being fired, and also in transport, because
they cannot fit or nest one inside another.
Now according to my invention I mould the cisterns of such form that they
will nest one inside another whereby a given number of them will occupy together
with the intervening saggars a space in the kiln less than half of that required
in the case of rectangular cisterns of the same capacity, the cost of firing being
reduced at least 50 per cent. Again in packing for transport the space occupied
is reduced at least one half with a corresponding reduction in the charge of
freight.
In carrying out my invention I mould the cisterns with both the sides and
the ends sloping gradually inwards from top to bottom. The cisterns are also
preferably moulded with an out turned flange at the top. This flange serves to
keep them in shape during the firing and also gives a somewhat ornamental
appearance to the finished cistern.
In the accompanying drawings,-
Figure 1 is a vertical longitudinal section,
Fig. 2 a plan, and
Fig. 3 a vertical cross section of a flushing cistern constructed of earthenware
according to this invention.
The cistern A is moulded with both the sides B and C, and the ends D and E
sloping gradually inwards from the top to the bottom. I is an out-turned flange
moulded at the top of the cistern. This flange serves to keep the cistern in shape
during the firing and also gives a somewhat ornamental appearance to the
finished cistern. The inwardly sloping form of the cisterns allows of their nesting
one inside another in the kiln during the firing in the manner indicated in Figure 4.
In this figure a number (say) three of cisterns A, A, A, are shown in vertical
cross section nested one inside another in an inverted position and supported by
the saggars G:
In packing for transport after having been fired the cisterns are preferably
nested one inside another, bottom downwards, in the manner indicated in Figure 5.
In this figure the three cisterns A, A, A, are shown in vertical cross section
nesting one inside the other and packed for transport. H represents any suitable
packing material placed between the cisterns to prevent breakage.
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
The manufacture of flushing cisterns moulded of earthenware with both the
sides and the ends sloping gradually inwards from top to bottom, substantially
as described and for the purpose specified.
Dated this 14th day of July 1900.
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
Chartered Patent Agents.