IMPROVE. MENTS IN THE CONSTRUCTION OF VALVE MOTIONS AND VALVES APPLICABLE TO TRAPS FOR SANITARY PURPOSES, AS ALSO FOR SLUICE VALVES AND OTHER PURPOSES
Year: 1879

page_text: LETTERS PATENT to Thomas Seaville Truss, of No. 30, Essex Street, Strand, in
•
the County of Middlesex, Civil Engineer, for the Invention of " IMPROVE.
MENTS IN THE CONSTRUCTION OF VALVE MOTIONS AND VALVES APPLICABLE TO
TRAPS FOR SANITARY PURPOSES, AS ALSO FOR SLUICE VALVES AND OTHER
PURPOSES."
Sealed the 20th April 1880, and dated the 22nd October 1879.
PROVISIONAL SPECIFICATION left by the said Thomas Seaville Truss at the
Office of the Commissioners of Patents on the 22nd October 1879.
"
THOMAS SEAVILLE TRUSS, of No. 30, Essex Street, Strand, in the County of
Middlesex, Civil Engineer. IMPROVEMENTS IN THE CONSTRUCTION OF VALVE
MOTIONS AND VALVES APPLICABLE TO TRAPS FOR SANITARY PURPOSES, AS ALSO FOR
SLUICE VALVES AND OTHER PURPOSES."
These improvements consist in the construction of valve motions and valves
applicable for traps for sanitary purposes, as also for sluice valves and for other
purposes.
The first part of my said improvements when applied for traps for sanitary
purposes consist in constructing a box with an inlet pipe and an outlet pipe
attached, the inlet pipe projecting a short distance within the box, and on this end
of the inlet pipe the face of a disk valve acts, and on the other face of this valve
about the centre is attached a parallel projection which fits into the fork end of a
lever, and is secured to the same by a pin passing through them, and are so fitted
together that the valve only moves to a given angle in any direction from the
longitudinal centre line of the lever and diametrically from such line, so that it
shall always be in the proper position to return to its seat (the end of the inlet pipe)
when in action. This lever works on a pin or joint at any radius from the centre
of the inlet pipe greater than the radius of the valve which covers the bore of such
inlet pipe, and to the other end of this lever a counterpoise weight is attached that
presses the valve on to the end of the inlet pipe with any desired force to keep the
same air and water tight to a given pressure. All fluids and matter entering the
box by the inlet pipe after passing the valve passes out of the box by the outlet
pipe; the box may be of any desired form, and the outlet pipe may be fixed
where desired, and in a position that all fluids and matter passing into the box
shall at once pass out through the outlet pipe, or such outlet pipe may be fixed in
Price di

page_text: such a position in the box that the box shall always contain sufficient fluid to rise
above the end of the inlet pipe. The discharge pipe from any water closet pan or
basin or other basin is connected to the inlet pipe of the box, when the arrange-
ments as described becomes a trap for sanitary purposes and self acting.
For some purposes I substitute a spring for the counterpoise weight for power to
act on the lever with the force required to close the valve, one end of this spring
being fixed to the inlet pipe, or the box, or to a stud in the box, the other end of
the spring acting on the counterpoise end of the lever, or on the lever between
the centre of the valve and the pin or joint on which the lever works. For some
purposes I modify the foregoing arrangements, and substitute for the lever a
forked end pin, the valve being fixed to the forked end of the pin in the same
manner as to the forked end of the lever, as herein before first described. This pin
works in a tube and against a spring of the desired force to close the valve, which tube
is fixed to the box and placed in a line with the centre line of the inlet pipe, on the
end of which pipe the valve acts. By this arrrangement the valve moves on a line
with the centre of the inlet pipe.
The second part of my said improvements consist in the application of such
valves and motions to sluice valves, and to serve as taps or cocks, and consist in
constructing the lever to work the valve with a forked end, as herein first described,
the other end of the lever being fixed to a pin or shaft working in bearings within
the box at any radius from the centre of the inlet pipe grater than the radius of
the valve, and on a parallel line to the face of the valve, and to this pin or shaft a
tooth wheel is fixed, in the teeth of which an endless screw works that is formed
on a shaft working in bearings in the box, one end of such shaft passing through
a stuffing box to the outside of the box, the end of such shaft being formed to
receive a key or other suitable contrivance to turn such shaft round, and so to open
or close such valve.
When such valves are applied to act as taps or cocks for small bore pipes, I
substitute a spring for the endless screw and wheel motion last described, which
spring is fixed on the outside of the box and acts on a pin or stud; one end of such
pin or stud acts on the valve lever, the other end being outside of the box to be
pressed when the valve is desired to be opened when so arranged.
The arrangements as described for traps for sanitary purposes when water is
used provide a water seal above the valve, as the valve will not open without a
given pressure, and if the bottom of the outlet pipe at the box containing the
valve be above the seat of the valve, then there is also a water seal above the
valve outside of the end of the inlet pipe, whilst the valve also acts as a seal, so
that no sewer gas can pass it when closed or when opened with fluid passing
through it, as the valve will close, retaining a certain quantity of fluid above it.
I have described the counterpoise weight and springs as applied within the
valve box, but these may be applied at the outside of the box, and be connected to
the valve lever by means of a rod passing into the box, with or without a short
link to connect the same to the valve lever and the weight or spring applied on
the end of such rod outside of the box, and when the valve is arranged vertical and
suspended no counterpoise weight or springs are required, as the valve is weighted
as required to give the desired pressure.
As my said improvements are capable of various modifications without departing
from the principle thereof, I do not restrict myself to materal or dimensions, or to
the precise form or placement of the several parts thereof.

page_text: '
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Seaville Truss in the Great Seal Patent Office on the
21st April 1880.
THOMAS SEAVILLE TRUSS, of 30, Essex Street, Strand, in the County of Middlesex,
Civil Engineer.
"IMPROVEMENTS IN THE CONSTRUCTION OF VALVE MOTIONS AND
VALVES APPLICABLE FOR TRAPS FOR SANITORY PURPOSES, AS ALSO FOR SLUICE
VALVES AND OTHER PURPOSES."
My said improvements consist in the construction of valve motions and valves
applicable to traps for sanitary purposes, as also for sluice valves and for other
purposes. The first part of my said improvements when applied for traps for sanitary
purposes consist in constructing a box with an inlet pipe and an outlet pipe
attached thereto, the inlet pipe projecting a short distance within the box, and on
this end of the inlet pipe the face of a disc valve acts, and on the other face of this
valve and about the centre a projection is attached, which projection fits into the
fork end of a lever, and is secured to the same by a pin passing thro' them, and
are so fitted together that the valve only moves to a given angle in any direction
from the longitudinal centre line of the lever and diametrically from such line, so
that such valve shall always be in the proper position to return to its seat on the
end of the inlet pipe and cover the saine.
The lever to which the disc valve is
thus attached works on a pivot pin or joint attached to the box at any radius from
the centre of the inlet pipe greater than the radius of the disc valve, and to the other
end of this lever a counterpoise weight is attached that presses the disc valve on to
the end of the inlet pipe with any desired force to keep such valve air and water
tight to a given pressure.
All fluids and matter entering the box by the inlet pipe after passing the disc
valve passes out of the box by the outlet pipe, which box may be of any desired
form, and the outlet pipe may be fixed where desired and in such a position that
all fluids and matter entering into the box and passing the disc valve shall at once
pass out through such outlet pipe; or such outlet pipe may be fixed in such a
position in the box that the box shall always contain sufficient fluid to rise above
the end of the inlet pipe within the box. When the discharge pipe from any
water closet, pan, or basin, or other basin or pan is connected to the inlet pipe of
the box, the arrangement as described becomes a self acting trap for sanitary
purposes.
For some purposes I substitute a spring for the counterpoise weight for power
to act on the lever with the force required to close the valve against a given
pressure, one end of such spring being attached to the inlet pipe or the box by a
stud, or pin, or screw bolt, the other end of the spring acting on the counterpoise
weight end of the lever, or on the lever between the centre of the valve and the
pivot on which such lever works.
For some purposes I modify the foregoing arrangements and substitute for the
lever described a forked end rod, the disc valve being fixed to the forked end of
this rod in like manner as the forked end of the lever herein before described, and
this rod works in a tube or case and against a spring of the desired force to close
the valve, which tube or case is fixed to the box, and is placed in a line with the
centre line of the inlet pipe of the box on the end of which pipe the valve acts.
By this arrangement the valve moves on a line with the centre of the inlet pipe.
The arrangements as described for traps for sanitary purposes when water is
used provide a water seal above the valve, as the valve will not open without a
given pressure, and if the bottom of the outlet pipe at the box containing the
valve be above the seat of the valve then there is also a water seal above the
valve outside of the end of the outlet pipe, whilst the valve also acts as a seal,
so that no sewer gas can pass it when closed or when opened with water or fluid

page_text: passing through it, as the valve will close, retaining a certain quantity of water or
fluid above it.
I have described the counterpoise weight and spring as applied within the box,
but these may be applied at the outside of the box and be connected to the valve
lever by means of a rod passing into the box, with or without a short link to
connect the same to the valve lever and the weight or spring applied on the end of
such rod or lever outside of the box, and when the valve is arranged vertically or
suspended or hanging on the fulcrum of the valve lever, no counterpoise weight or
spring is required, as the valve is weighted to give the desired pressure.
The second part of my said improvements consists in the application of such
valves and motions to sluice valves, and to serve as taps or cocks, and consist in
constructing the lever to work the valve with a forked end, as hereinbefore first
described, the other end of the lever being fixed to a pin or shaft working in
bearings within the box at any radius from the centre of the inlet pipe greater
than the radius of the valve which acts on the end of such inlet pipe and on a line
parallel to the face of the valve when seated on the end of the inlet pipe, and to
this pin or shaft a tooth or gear wheel is fixed, in the teeth of which an endless
screw works that is formed on a shaft working in bearings in the box, one end of
such shaft passing through a stuffing box to the outside of the box, the end of such
shaft being formed to receive a key or other suitable contrivance to turn such
shaft round and give motion to the endless screw action to open and close such
valve.
When such valves are applied to act as taps or cocks for small bore pipes I
modify the foregoing arrangement by substituting for the endless screw and wheel
motion a spring that fits into a recess on the outside of the box, which spring acts
on the rod passing through it to the outside of such recess, the other end of such
rod acting on the valve or valve lever with any desired force, to which force the
spring is adjusted to prevent concussion in the pipe by the closing of the valve. By
this arrangement the valve is opened by pressure applied on the end of the rod
that projects outside the recess on the box.
For some purposes I modify the foregoing arrangements, and form the end of the
valve rod passing through the spring and acted on by it of any number of surfaces
or other suitable forms to hold to turn a loose collar that is fitted to slide on it, and
on the periphery of this collar a screw thread is formed that works in the chamber
attached to the box, so that by turning such valve rod the loose collar is rotated,
which collar acts on the spring that acts on the valve rod, and so opens and closes
the valve, and when such valve is closed or not fully opened by this motion, the
valve may be opened by pressure on the valve rod, as though no such additional
loose collar motion was connected with it.
For some purposes the fork on the end of the valve lever and valve rod may he
fixed to the valve instead of to the lever, or an ordinary cup or ball joint may be
employed, and in the valve motions for taps or cocks for small bore pipes the valve
lever or rod may simply act on the valve or on the projecture on the valve, or be
one with the same.
In order that the nature of my said improvements and in what manner the
same are to be performed may be more fully understood, I will proceed to describe
the several Figures on the Sheet of Drawings hereunto annexed.
Figure 1 is a longitudinal view part in section of a self acting counterpoise
weighted valve trap for sanitary purposes, as hereinbefore described, and Figure 2
is a plan of the same, the box in this instance is shown constructed of two parts;
Figure 3 is a longitudinal view part in section of the trap showing the counterpoise
weight applied outside the box, and connected to the valve lever by a rod and pin,
and Figure 4 is a like sectional view showing the action by spring, and Figure 5 is
a like sectional view showing the action of the suspended valve, and Figure 6 is a
plan of Figure 5, and Figure 7 is also a longitudinal view part in section of the
trap showing the spring action in a line with the centre of the inlet pipe, as herein-
before described, and Figure 8 is a plan of Figure 7; Figure 9 is a longitudinal

page_text: view part in section of a sluice valve, tap, or cock, as hereinbefore described, and
Figure 10 is an end view of the same, and Figure 11 is a longitudinal view part in
section of a push tap or cock for small bore pipes, and Figure 12 is a longitudinal
view of the same, and Figure 13 is a longitudinal view part in section of a
combined push and screw tap or cock for small bore pipes, as hereinbefore
described.
Figures 1 to 8, inclusive, are marked with the like letters of reference, and
Figs. 9 and 10 are marked with the like letters of reference, and Figures 11 to 14,
inclusive, are marked with the like letters of reference to their several parts.
Figure 1, a, a, are the two parts forming the box secured together by the
screws b, b, and c is the inlet pipe, and d is the outlet pipe. The valve lever e
works on the pivot f, and g is the counterpoise weight, and h is the forked end of
the valve lever, and i is the disk valve with the projection j on it, which is con-
nected to the fork end of the lever e by the pin k. Figure 3, 7 is the rod con-
necting the counterpoise weight g with the valve lever e by the pin m, and n is
the rod stufing box. Figure 4, o is the spring secured to the box by the screw
bolt p. Figure 7, q is the tube which receives the forked end rod that acts on the
spring 8. Figure 9, t, t, is the box, and u, u, is the inlet and outlet, and v is a cap
on the box to which is attached the stuffing box w, and the bearing bracket to
carry the screw y which works in the wheel that is keyed to the shaft a¹, to
which shaft one end of the valve lever b¹ is also fixed, the other end of this lever
being forked out c¹ to receive the projection d' that is on the valve e¹, and which
are connected together by the pin f¹, and g' is the square end of the screw shaft y,
so formed to receive. a key to turn such screw shaft. Figure 11, h¹ is the box,
and the cap which is screwed into it, and 1 is the inlet, and k¹ is the outlet,
and is a cap screwed on to the end of the chamber w' that is attached to the
box h; against this cap the screw m³ acts, and also against the collar n', which is
part of the rod o¹, which rod acts on the valve p' that is connected to the valve
lever q' that works on the pivot by means of the projection 8¹ on the valve p'
by the pin t¹ in the forked end x¹ of the lever q'.
Figure 13. The end u¹ of the rod o¹ is square to receive the loose collar v', that
as a screw thread on its periphery that works in the chamber w¹ that is attached
to the box h³, and y¹ is a button formed on the end of the rod o¹ for the con-
venience of working the valve.
As my said improvements are capable of various modifications without departing
from the principle thereof, I do not restrict myself to material or dimensions, or to
the precise form or placement of the several parts thereof.
Having now described the nature of my said improvements and in what manner
the same are to be performed, I declare that I claim as my Invention the several
motions with valves for traps for sanitary purposes, and for sluice valves and taps
or cocks, as hereinbefore described and illustrated.
In witness whereof, I, the said Thomas Seaville Truss, have hereunto set my
hand and seal, this Twenty first day of April, in the year of our Lord
1
1 night
Signed, sealed, and delivered
in the presence of
THOS. FORD,
Clerk to C. A. Emmet,
Solicitor,
30, Essex Street, Strand,
London
THOMAS SEAVILLE TRUSS. (L.S.)