Improvements in Overflow Apparatus for Baths, Lavatories, Sinks or Jawboxes, and the like.
Year: 1896

page_text: Date of Application, 12th Mar., 1896
Complete Specification Left, 10th Dec., 1896-Accepted, 6th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in Overflow Apparatus for Baths, Lavatories, Sinks
or Jawboxes, and the like.
1, JOHN SHANKS, of Tubal Works, Barrhead, in the County of Renfrew,
North Britain, Sanitary Engineer, do hereby declare the nature of this invention
to be as follows, that is to say :-
My said invention relates to the overflow apparatus of baths, lavatories, sinks, or
jawboxes, and the like; and has for its object to render such apparatus more
thoroughly effective than as hitherto generally constructed. My improvements
practically increase the flow through the overflow passage, so that a passage of an
ordinary or moderate size, will discharge water even when an extra large quantity
of water enters the bath or other vessel after it has been filled up to the proper
level.
My invention consists in fixing a hood or cap at or over the overflow outlet, the
edge of the hood or cap dipping just below the lowest part or edge of the outlet.
When the overflow outlet is in the side of the vessel the hood is made to extend
from about the top edge of the outlet and to curve over and downwards in front of
and at the sides of the outlet its bottom opening being at least as large as the
overflow passage. When the overflow outlet is, as in many cases, the upper open
end of a tubular plug the lower end of which closes the lower or main discharge
outlet from the vessel and which is raised to open this outlet, a dome-shaped cap is
fixed over the upper end of the tubular plug, the bottom edge of the cap dipping
just below the top of the tubular plug and being large enough in diameter to allow
the water to pass freely under it and into the overflow outlet.
When, with an extra supply, the water tends to rise above the hood or cap
siphonal action takes places any air in the hood or cap being carried away, and the
water passing off in a solid stream.
Dated this Eleventh day of March 1896.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Overflow Apparatus for Baths, Lavatories, Sinks
or Jawboxes, and the like.
1, JOHN SHANKS, of Tubal Works, Barrhead, in the County of Renfrew,
North Britain, Sanitary 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, that is to say:-
My said invention relates to the overflow apparatus of baths, lavatories, sinks or
jawboxes and the like; and has for its object to render such apparatus more
thoroughly effective than as hitherto generally constructed. My improvements

page_text: practically increase the flow through the overflow passage, so that a passage of
an ordinary or moderate size, will discharge water even when an extra large
quantity of water enters the bath or other vessel after it has been filled up to the
proper level.
My invention consists in fixing a hood or cap at or over the overflow outlet, the
edge of the hood or cap dipping just below the lowest part or edge of the outlet.
And in order that my said invention and the manner of performing the same
may be properly understood, I hereunto append a sheet of explanatory drawings,
to be hereinafter referred to, and showing three modifications of my improved
overflow apparatus for baths, lavatories, sinks, or jawboxes, and the like.
Figure, 1, of the drawings is a vertical section of part of a bath as made with
one modification of the improved overflow apparatus.
Figure, 2, is a vertical section of a second modification of the improvements.
Figure, 3, is a vertical section of a lavatory as made with a third modification of
the improved apparatus.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
When the overflow outlet, A, and passage, B, are inside the vessel, as shown in
Figure, 1, or when the outlet is in the side of the vessel and the passage outside
the vessel as shown in Figure, 2, the hood, C, is made to extend from about the
top edge of the outlet, and to curve over and downwards in front of the outlet, its
bottom opening, being at least as large as the overflow passage. In the modifica-
tion shown in Figure, 1, the hood, C, extends across the vertical recess formed in
the end of the bath; and in the modification shown in Figure, 2, the hood, C,
extends round at the sides. The hood, C, in both cases is within the vessel and is
preferably formed in a piece with it, or it might be a separate piece fixed on.
When the overflow outlet, A, is the upper open end of a tubular plug, E (as in the
modification shown in Figure, 3) the lower end of which closes the lower or main
discharge outlet, G, from the vessel, and which is raised to open this outlet, a
dome-shaped cap, C, is fixed over the upper end of the tubular plug, the bottom
edge of the cap dipping just below the top of the tubular plug and being large
enough in diameter to allow the water to pass freely under it and into the overflow
outlet.
When with an extra supply the water tends to rise above the hood or cap, C,
siphonal action takes place, any air in the bood or cap being carried away, and the
water passing off in a solid stream.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to he performed I declare that what I
claim is :-
Fixing at or over the overflow outlet of a bath, a lavatory, a sink or jawbox, or
the like, a hood or cap with its edge dipping just below the lowest part or edge of
the outlet substantially as and for the purposes hereinbefore described.
Dated this Ninth day of Decumbo 1000
EDMUND HUNT,
Applicant's Agent.