Improvements in Automatic Discharge Valves for Soil or Sewer Pipes of Dwellings.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Automatic Discharge Valves for Soil or Sewer
Pipes of Dwellings.
1, CHARLES HORATIO SHEPHERD of 52 West 21st Street, in the City County
and State of New York, United States of America, Dentist, 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 :-
The object of my invention is to construct an automatic discharge valve for sewer
or soil pipes of dwelling houses and other buildings, which will open under a given
pressure of water and which will close automatically as soon as the water is
discharged.
My Invention consists in the combination, with the soil pipe, of a valve adapted to
close the end of the pipe, a weighted lever for closing the valve, and a spring actuated
latch for retaining and releasing the valve, all as hereinafter more fully described.
Reference is to be had to the accompanying drawings, forming part of this specifica-
tion, wherein
Figure 1 is a sectional plan view, the section being taken on line a a, figure 2;
Figure 2 is a vertical transverse section, taken on line y y figure 1 ; and
Figure 3 is a horizontal section, taken on line -z figure 2.
Similar letters of reference indicate corresponding parts in all the views.
To the lower end of the soil pipe A are attached ears B in which is journaled
a rock shaft C carrying an arm D to which is secured a valve E adapted to close
the end of the pipe A. To the rock shaft C is also attached a lever F provided
with a weight Ġ adapted to close the valve E. Upon the lever F between the
weight G and the shaft C, is placed a casing H containing a movable ratchet
bar I, which is pressed outwardly by springs a placed in the said casing. To a
frame J secured to the ears B is attached a casing containing an inclined
plane c. In the said casing is pivoted a catch lever d, the longer arm of which
engages the yielding ratchet bar I, while the shorter arm projects beyond the
lower end of the inclined plane c. A spiral spring e interposed between the catch
lever d and the top of the casing b, tends to press the said catch lever downward.
arm of the frame J is pivoted a lever K carrying at one side of its
fulcrum an adjustable weight g and at the opposite side a catch h which is
adapted to engage the shorter arm of the lever d, the said catch being pressed
into engagement with the lever d by a spiral spring interposed between the
catch and the wall of the casing. The catch h carries a roller j which rolls
upon the inclined plane c. The upward motion of the shorter arm of the lever K
is limited by a screw which passes through an arm of the frame J.
To an
The operation of my improved valve is as follows:-When water accumulates
to the prescribed limit in the sewer pipe A, it presses down the valve E carrying
up the lever F, thus tilting the catch lever d and drawing down the catch h,
when the roller; by contact with the inclined plane c pushes back the catch h
and disengages it from the catch lever d, allowing the longer arm of the said
catch lever to rise and thereby release the lever F, when the valve E opens wide
and allows the contents of the sewer pipe to escape. As soon as the pipe is
emptied, the weight G returns the valve E to its seat. It also brings the
ratchet bar I again into engagement with the catch lever d and the spring e of
the said catch lever causes the said lever to re-engage with the catch h, when the
parts are ready for another operation.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In an automatic discharge valve for soil pipes, the combination, with the valve E

page_text: and valve-closing lever F provided with the spring-pressed ratchet bar I, of the
spring-pressed catch lever d; the spring-pressed catch h provided with the roller j, the
weighted lever K and the inclined plane c, substantially as specified.
2. In an automatic discharge valve for soil pipes, the combination, with the sewer
pipe A, of the valve E, the rock shaft C provided with the arm D, the valve-closing
lever F, the spring-pressed ratchet bar 1 carried thereby, the casing b furnished with
the inclined plane c, the catch lever d, the spring e, the catch , the roller j, the
spring, the weighted lever K, and the limit screw l, substantially as specified.
1000
C. H. SHEPHERD.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.