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Patented April 25, 1905.
UNITED STATES PATENT OFFICE.
HENRY S. PINKERTON, OF JUNO, TEXAS.
AUTOMATIC VALVE.
SPECIFICATION forming part of Letters Patent No. 788,426, dated April 25, 1905.
Application filed July 19, 1904. Serial No, 217,234.
To allz hoin it 7may coflcern:
Be it known that I, HENRY S. PINKERTON,
a citizen of the United States, residing at Juno,
in the county of Valverde and State of Texas,
5 have invented new and useful Improvements
in Automatic Valves, of which the following
is a specification.
The invention relates to an improvement in
valves of the class designed to automatically
[o control the water-supply to a suitable reser-
voir through the operation of a float.
The invention has for its object to provide
a simple inexpensive valve of maximum dura-
bility and service and to operate the valve in
15 a positive manner by means of the float of
particular construction and to further pro-
vide for the ready and convenient adjustment
of the connection between the valve and float.
To enable others skilled in the art to gain
20 a comprehensive knowledge of the construc-
tion of my invention, I will hereinafter de-
scribe the details thereof with particular ref-
erence to the accompanying drawings, in
which-
25 Figure 1 is a view in elevation, showing my
improved valve in use, the valve being closed.
Fig. 2 is a sectional view of the valve,.taken
just above the valve-plate. . Fig. 3 is a per-
spective view of the valve-frame. Fig. 4 is
30 a detail perspective of the valve-stem. Fig.
5 is an elevation of the valve, showing a
modified operating mechanism. Fig. 6 is a
similar view showing another form of valve-
operating mechanism. Fig.-7 is a detail per-
35 spective of the valve-stem illustrated in Fig. 6.
In the drawings, 1 represents any fixed res-
ervoir, such as a watering-trough, and 2 a
water-supply pipe leading into the trough
from the bottom.
40 The valve comprises a valve-seat plate 3, ar-
ranged to be screwed onto the end of the sup-
ply-pipe within the reservoir and held against
displacement by a lock-nut 4. The plate is
formed on its upper surface with a projecting
45 valve-seat 5 .of usual shape and at diametric-
ally opposite points with projecting lips 6
and 7, the latter of greater extent than the
former.
The valve proper is supported in a suitable
50 frame comprising parallel metallic strips 8 of
inverted-U shape spaced a short distance apart.
The frame is, however, preferably formed of a
single strip bent to form the parallel members
shown in the drawings, leaving a base 9 at
one end and provided at the opposite end with 55
an elongated strip 10 to form a base projecting
beyond the sides of the frame. The base 9 is
secured to lip 6 of plate 3, while base 10 is
secured to the larger lip 7, as clearly shown
in Fig. 2, thus supporting the frame verti- 6o
cally from the valve-seat plate, it being noted
that the respective bases 9 and 10 correspond
in size to the respective lips 6 and 7 to give
firm support.
The valve comprises a stem 11, preferably 05
rectangular in cross-section and of a width
somewhat less than the distance between the
frame-strips. The stem is formed near its
upper end with a slot 12 .and is reduced and
threaded at its lower end to provide shank 13. 70
A pin 14, passing through the slot 12 of the
valve-stern and through the frame-strips, suit-
ably supports and guides the stem. A guid-
ing-plate 15 is placed on shank 13, being held
against upward movement by lock-nut 16, 75
the plate being formed with ears 17 fitting
between the frame-strips 8 and formed with
shoulders 18 to bear against the inner edge
of the strips, thus guiding the valve in opera-
tion. A valve-disk 19 of suitable material, 8o
as leather, is fitted over shank 13 and against
plate 15, being secured in place by a washer
20 and lock-nut 21, the disk being of course
of suitable size to rest upon the valve-seat 5.
22 represents the operating - lever, being 85
preferably a thin metallic strip bifurcated at
one end to embrace the valve-stem near the
lower end of the latter, as at 23, then bent
upwardly practically parallel with the valve-
stem, as at 24, and then outwardly, project- 90
ing between the frame-strips 8, with its oppo-
site end connected to a float to be described.
Locking-links 25 are secured on pins 14,
one on each side of the valve-stem, and pro-
ject toward and are pivotally connected to 95
lever 22, preferably to the vertical portion of
the latter.
I provide for a ready and convenient ad-
justment of the lever to increase or decrease
the operation of the valve by bending or 100
No. 788,426.