Improvements in and relating to Water-closets and the like.
Year: 1899

page_text: Date of Application, 20th Apr., 1899
Complete Specification Left, 19th Jan., 1900-Accepted, 24th Feb., 1900
I, JAMES MORRISON, of Hilton Fire Clay Works, Alloa, Clackmannanshire,
Foreman, do hereby declare the nature of my invention to be as follows:-
This invention has reference to a new or improved method of flushing water-
closets and the like by siphonic action.
According to my improvements I form the outlet pipe from the pan of closet to
curve upwards with its short limb to a level slightly below the inlet duct to pan,
and I make the downtake part of this pipe of a widened out shape and to contract
inwards to a narrow neck a few inches from the bottom level of base of closet.
By this means when the closet is flushed the water takes more time to accumu-
late at the top of outlet pipe, and it then displaces the air and a siphonic action
takes place carrying rapidly away the contents of closet.
By these improvements the metallic siphons usually placed in the flushing
cisterns can be dispensed with and the noise of same be avoided; and the cisterns
can be placed at a much lower level above closet than heretofore, and thus form
a useful combination siphon closet and cistern.
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
Improvements in and relating to Water-closets and the like.
I, JAMES MORRISON, of Hilton Fire Clay Works, Alloa, Clackmannanshire,
Foreman, do hereby declare the nature of my invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement in writing, reference being made to the accompanying
drawings.
This invention has reference to a new or improved method of flushing water-
closets and the like by siphonic action.
And in order that my said invention may be properly understood, I have
hereunto appended an explanatory drawing representing a sectional elevation
of an earthenware water closet pan as formed or fitted with my improvements.
Referring to said drawing:
According to my improvements I form the outlet pipe A' from the pan A of
closet to curve upwards with its short limb to a level slightly below the inlet
duct to pan, and I make the downtake part of this pipe of a widened out shape

page_text: and to contract inwards to a narrow neck at A2 a few inches from the bottom level
of base of closet.
By this means when the closet is flushed the water takes more time to accumu-
late at the top of outlet pipe A', and it then. displaces the air and a siphonic
action takes place carrying rapidly away the contents of closet.
By these improvements the metallic siphons usually placed in the flushing
cisterns can be dispensed with and the noise of same be avoided; and the cisterns
can be placed at a much lower level above closet than heretofore, and thus form a
useful combination siphon closet and cistern.
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:
First. The method of flushing water closets and the like under siphonic action
by constructing the outlet pipe from pan in the manner herein set forth.
Second. Water closet pans having their outlet pipes formed in the manner
herein set forth.
and the 10th Tannon 1000