Improvements in Traps for Bath Tubs.
Year: 1891

page_text: Date of Application, 31st Aug., 1891-Accepted, 7th Nov., 1891
COMPLETE SPECIFICATION.
Improvements in Traps for Bath Tubs.
1, HERBERT JOHN ALLISON, of 52, Chancery Lane, London, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention which
has been communicated to me from abroad by Delehanty Manufacturing Company,
Incorporated; of Albany, New York, United States of America, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
Figure 1 shows a vertical sectional view of my trap showing the ball valve in
its natural or normal position resting on the valve seat.
Figure 2 shows a similar view of my trap but showing the position of the valve
when the trap is being flushed.
This invention relates to traps for bath tubs, and consists of a trap chamber
substantially globular in form having its eduction opening higher than the induction
opening and having a horizontal chamber in the globular chamber, in the roof of
which is an opening and a valve seat for the ball valve to rest on, said horizontal
chamber extending out beyond the walls of the globular chamber and having a
pipe connected therewith by means of a slip joint.
As represented in the drawings the numeral 1 shows the globular body of the
trap, which is composed of any desired material and has an eduction opening 2,
which is located in a neck preferably as shown, and the lowest level or floor of the
discharge opening 2 is elevated above the induction opening 3 and above the ball
valve 6, and this is so that when the trap is quiescent or in its normal condition
the ball valve 6 will close the opening in the roof of the chamber 8, and also
sufficient depth of water will lie over or about the valve 6 to form a water seal
also, thus doubly sealing the trap.
In the globular chamber is a horizontal chamber 8 projecting out of and beyond
the walls of the globular chamber as shown, and its outer end threaded preferably
80 as to take a connection 9 and packing 10, and into the mouth of horizontal
chamber 8 is inserted the intake pipe of the trap forming a slip joint made liquid
tight by the connection 9 and packing 10. In the roof of chamber 8 is an opening
forming a valve seat for the valve 6. This valve 6 has a guide stem 7 which rises
from the ball valve and its upper end rests loosely in a chamber 5 in the cover 4,
and cover 4 preferably screws into an opening in the top of the trap as shown.
The opening closed by cover 4 is of sufficient diameter to allow of the ball
valve 6 being taken out of and inserted in the trap through it. This trap is
designed to be set upon the floor of any room, at the end or side of any bath tub,
wash tub, or similar utensil instead of being set under the floor or in the house wall
as is usually done, and thus allow of the tub being set very near the floor. This
invention operates in the following manner:
When being set in position, the slip joint allows of movement of the induction
pipe and renders adjustment easy, and when fully in position the trap stands upon
the house floor plainly in sight and easily accessible.
The waste water enters by the induction pipe and fills the chamber 8. This
causes the ball valve 6 to rise, the guide stem 7 rising in the chamber 5 in the
cover 4, and the overflow escapes at eduction opening 2. When the flow of waste
water ceases, the ball 6 drops back upon the seat and closes the opening in the
roof of chamber 8, and there is also sufficient depth of water in the trap at all
times to form a water seal. When the trap needs repairs or cleaning, the cover 4
is taken off, the ball 6 removed and every part of the trap is then easily
accessible.
T

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A trap for the purposes described having its body practically globular in
form and having an oblong chamber therein, said chamber projecting out beyond
the body of the trap, said chamber having an opening in it and a valve arranged to
open and close the opening and an eduction opening from said trap.
2. A trap for the purposes described having its body practically globular in
form and having an oblong horizontal chamber therein, said chamber projecting
out beyond the body of said trap and having an opening in said chamber arrated
to be opened and closed by a valve, the induction pipe to said trap being conn, cted
with the oblong chamber and forming a slip joint therewith, said trap he, ag an
eduction opening for the purposes described.
3. A trap for the purposes described having a body practically globular in form
and having a main chamber therein and a second chamber therein, said second
chamber projecting out beyond the body of the trap and having an ope; ing in its
roof closed by a rising and falling valve, the outlet opening from the min.chambor
being raised high enough above the roof of the second chamber d the valve
therein so that said roof and said valve will be covered by water when the trap is
not being flushed, said valve having a guide arranged to prevent the water lying.
over the roof of said chamber, keeping the valve from regaining its seat after
the trap has been flushed, for the purposes described.
Dated this 31st day of August 1891.
ALLISON BROS.,
Agents for the Applicant.