Improvements in Syphon Discharge Fittings for Water Closets, Baths, Sinks, Lavatory Basins, and the like.
Year: 1896

page_text: Date of Application, 7th Nov., 1896
Complete Specification Left, 24th Nov., 1896-Accepted, 10th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Syphon Discharge Fittings for Water Closets,
Baths, Sinks, Lavatory Basins, and the like.
I STEWART ROBERTSON, Sanitary Engineer and Merchant and Agent for
Sanitary Appliance 55 Yeaman Shore Dundee in the County of Dundee Scotland
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the improvement of water closets cisterns,
lavatories, baths, sinks wash-tubs and other sanitary fittings or other vessles by
starting syphonie action by means of water vaives on the discharge pipes and may
be made of porcelain earthenware or fireclay or other suitable material as part of
said water closet and other fittings or be made of lead iron zinc tin copper
brass or other suitable material and fitted to said water closet as a separate piece
or part.
The invention may be made use of in various ways. I proceed to describe one
method, viz., its application to a water closet of the wash-down type as shown
Fig. 1. The closet may either be flushed by ordinary syphon cistern or a syphon
cistern, the down-pipe of which has been fitted with this invention as Fig. 1 C.
The water from cistern rising in basin of water closet to line D. D. overflows down
soil pipe E. E. The water in falling is intercepted in its course by striking or
impinging against the protruding angle F throwing the waste back on curve G and
so producing the water valve A, it then falls but is again intercepted by the curve G
and the water is thrown back on the lower side of the angle F. producing the
water valve B. and escapes by the soil pipe E. The water in falling down soil
pipe E. E. carries a certain amount of air with it, and as the air is prevented from
entering by the water seal or trap I and by the water valves A. B. a partial vacuum
is formed and syphonic action is started drawing out the whole contents of the
basin H.
The invention may be formed on any part, and protrude in any direction from
the soil pipe or other pipe on which it is fitted. It may be formed as shown on
Fig. 1 or as shown by Figs. 2, 3, 4, 5, 6, 7, 8 or by any combination of such designs
or other designs attaining the same end. The double water valve as at Fig. 1 A.. B.
or treble valve as Fig. II or quadruple valve as Fig. IV or any number or shape
of such angles, curves cr lines producing water valves, may be used on the same
pipe in such position as may be necessary to produce desired result. Fig. I, II,
III, IV, V, VI and VIII, may also be constructed to protrude on both sides of
pipe as shown by Fig. VII.

page_text: Improvements in Syphon Discharge Fittings for Water Closets,
Baths, Sinks, Lavatory Basins, and the like.
I STEWART ROBERTSON, Sanitary Engineer and Merchant and Agent for
Sanitary Appliances 55 Yeaman Shore Dundee in the County of Dundee Scotland,
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:-
This invention has for its object the improvement of water closets, cisterns,
lavatories, baths, sinks, wash-tubs, and other sanitary fittings or other vessels by
starting syphonal or syphonic action by means of water valves, or air locks on the
discharge or other pipes and may be made of porcelain, earthenware, fireclay,
stoneware or other suitable material as part of said water-closet or other fittings, or
be made of lead, iron, zinc, tin, copper, brass or other suitable material and fitted
to said water closet &c. as a separate piece or part. The invention may be made
use of in various ways. I proceed to describe one method, vizt. its application to a
water closet of the wash-down type as shown Fig. 1 of drawing left with the
Provisional Specification. The closet may either be flushed by ordinary syphon
cistern. or a syphon cistern the downpipe or long leg of syphon of which has been
fitted with this invention as Fig. 11. The water in cistern rising in basin of water-
closet to line D. and in short leg of syphon trap I to D overflows down soil pipe or
long leg of syphon E. E. The water in falling is intercepted in its course by
striking or impinging against the protruding angle F. throwing the water back on
curve G and so producing the water valve or air lock A. The water again falls
but is intercepted in its course by striking or impinging against the lower part of
the curve G and is thrown back on the lower side of the angle F. producing the
water valve or air lock B and escapes by the soil pipe, or long leg of the syphon E.
The water in falling down the soil pipe or long leg of the syphon E. E. carries a
certain amount of air with it, and as the air is prevented from entering by the water
seal or trap in basin H and short leg of syphon on the one side and by the
water valves or air locks A. B. on the other side, a partial vacuum is formed and
syphonal action is started drawing out the contents of the basin H.
The invention may be formed on any part and protrude or extend in any direction
from the soil pipe or long leg of the syphon E or other pipe on which it is fitted.
It may be formed as shown on Fig. 1 of drawing left with Provisional Specification
or as shown by Figs. 2, 3, 4, 5, 6, 7 or 8 of same drawing, or by any combination
of such designs or other designs attaining the same end. The double water valve
or air lock as at Fig. 1. A. B. or treble water valve or air lock as Fig. 2. or quadruple
valve or air lock as Fig. 4. or any number or shape of such angles curves or lines
producing water valves or air locks may be used on the same pipe in such position
as may be found necessary to produce the desired result. Figs. 1, 2, 3, 4, 5, 6 and 8
may also be constructed to protrude or extend on both sides of pipe as shown by
Fig. 7.
On Sheets and III show several applications of the invention. The large
flushing tank or tank for containing chemicals or other liquids Fig. 10. The
kitchen, scullery pantry or butlers sink Fig. 13. The flushing cistern Fig. 15.
The wash-tub Fig. 19. The bath Fig. 17 and the lavatory basin Fig. 18 show the
invention on the discharge or waste pipe without the usual short leg of syphon as
Fig. 12. In all these fittings the ordinary PS or Qtraps may be placed between
the sanitary fitting and the invention as Fig. 17. K or at a lower point on discharge
or waste pipe than said invention as Fig. 18. K.

page_text: The combination water closet Fig. 11. the syphon flushing cistern Fig. 12.
the stall trough urinal Fig. 14. the isolated trough closet or latrine Fig. 16 and
the trough closet or latrine Fig. 20 all show application of the invention on long
leg of syphon or discharge pipe.
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
1st. The combination and arrangement of parts constituting the principle of
starting or producing syphonal action by means of two or more water valves or in
locks or seals on the long leg of syphon, discharge, soil, waste or other pipe of
sanitary or other fittings or vessles as herein before described with reference to
Figs. 1 to 8 inclusive of drawings left with the Provisional Specification and
Figs. 10 to 20 inclusive of accompanying drawings.
II. The simplifying of parts in starting of syphonal action in connection with
sanitary fittings or other vessles.
III. The discharge of water in less time and with greater volosity from sanitary
fittings in cases where short leg of syphon is not used, and consequently the better.
flushing of drains in connection with such fittings.
Dated this Twenty-third day of December 1896.
STEWART ROBERTSON.