Improvements in Single or Double Outlet Standpipes for Hydrants.
Year: 1899

page_text: Date of Application, 19th Jan., 1899
Complete Specification Left, 19th Oct., 1899-Accepted, 25th Nov., 1899
PROVISIONAL SPECIFICATION.
Improvements in Single or Double Outlet Standpipes for Hydrants.
I, DAVID BLAIKIE HISLOP, of the Firm of John Blaikie & Sons, Littlejolin
Street Metal Works, Aberdeen, in the County of Aberdeen, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in single or double outlet standpipes
for hydrants, the object being to provide an appliance which is simple in con-
struction and action and which can open, or permit of the closing of the hydrant
ball valve almost instantaneously.
In carrying out my invention, according to one modification, I provide the
top of the standpipe with a stuffing box through which the rod carrying the cup
for actuating the ball valve of the hydrant projects. On the stuffing box casing
is screwed or otherwise fixed an adjustable bracket, and such bracket carries an
eccentric or cam so designed that on turning it around its axis about 90° by
means of a handle, it depresses the rod and its cup and so pushes the ball valve
of the hydrant off its seat and thus allows the water to flow through the stand-
pipe. By turning the handle in the other direction the pressure on the rod
and cup is withdrawn and the ball valve is allowed to come on to its seat again
and shut off the water. The handle for actuating the eccentric may be provided
with a notched quadrant and engaging lever or their equivalent for the purpose
of regulating the amount of opening of the valve and the flow of water.
winged nut may be used for the same purpose.
A
In some cases, in order to reduce friction, I may provide the projecting end of
the rod which carries the cup with a roller against which the cam may work.
In another modification I may screw on the stuffing box casing a cylindrical
continuation. The cup rod projects through such continuation and is provided
with a handle or lever, the purpose of such handle being to turn the rod about
its axis. In the cylindrical continuation is a semi-helical groove or slot in which
a pin in the cup rod works, the arrangement heing such that on giving the rod
say half a turn, the cup is lowered and the ball valve opened, or conversely. A
recess may be made at the middle of the helical slot in which the pin may engage.
When the pin is in such position the valve is only half open.
To prevent shock or recoil on the pipes a suitable spring may be provided.
Such spring preferably is used to keep the cup rod from rising too rapidly.
Tad this 17th dox of January 1899
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Single or Double Outlet Standpipes for Hydrants.
I. DAVID BLAIKIE HISLOP, of the Firm of John Blaikie & Sons, Littlejohn
Street Metal Works, Aberdeen, in the County of Aberdeen, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be per-
DQ17

page_text: formed, to be particularly described and ascertained in and by the following
statement: -
This invention relates to improvements in single or double outlet standpipes
for hydrants the object being to provide an appliance which is simple in con-
struction and action and which can open, or permit of the closing of the hydrant
ball valve almost instantaneously.
And in order that my said invention and the manner of performing or carry-
ing the same into effect or practice may be properly understood, I have hereunto
appended an explanatory sheet of drawings in which the same reference numerals
are used to indicate corresponding parts in all the figures where shown, that
is to say:
Figure 1, is a sectional elevation of the head of a double outlet standpipe for a
hydrant, and Figure 2, is a plan of the spindle gland.
In carrying out my invention, according to one modification, I provide the top
of the standpipe with a stuffing box 10 through which the rod 11, carrying the
cup 12, for actuating the ball valve of the hydrant, projects, such valve not being
shown as it is of the usual construction. On the stuffing box casing is a cylin-
drical continuation 13, bolted to the gland 10 by means of bolts or screws 14.
The cup rod 11, projects through such continuation and is provided with a handle
or lever 15, the purpose of such handle being to turn the rod about its axis. In
the cylindrical continuation is one or more semi-helical grooves or slots 16, in
which a pin 17, fixed on the cup rod works, the arrangement being such that on
giving the rod say half a turn, the cup is lowered and the ball valve opened, or
conversely. A recess may be made in the middle of the helical slot in which
the pin may engage. When the pin is in such position the valve is only half
open. To prevent shock or recoil on the pipes a suitable spring may be provided.
Such spring preferably is used to keep the cup rod from rising too rapidly. In
the drawings I have shown the spring in the form of a water cushion in which 18,
is the cylinder, 19, the upper cup leather whose purpose is to keep the water from
passing up the rod 11, and 20, the lower sliding cup leather for retaining the
water in the cylinder 18, that is to say the cup leather 20, in combination with
its supporting ring 21; which is fixed to the rod 11; and its retaining nuts 22,
form a water tight piston. 23, are holes for allowing water from the standpipe
to flow into the cylinder 18, when the rod and cup 20, is at its lowest position.
24, is a regulating pin. 25, are leather washers whose purpose is to keep water
from leaking past the rod 11.
The action of the apparatus is as follows:-On turning the rod 11, say half a
turn it is fully depressed and with it the cup 12, because of the pin 17, moving
in the slots 16. When being depressed the cup pushes the ball valve of the
hydrant off its seat and thus allows the water to flow through the standpipe. It
can he retained in this position as long as desired by causing the pin 17, to engage
with the circular recess 26. When it is desired to shut the valve the rod 11, is
turned in the opposite direction until the pin 17, comes opposite the slots 16,
whereupon such rod will be forced upwards by the pressure of the water acting
on the valve of the hydrant, such ball valve being then allowed to come gradually
on to its seat again and so shut off the water. It cannot rise too rapidly because
of the water which has run into the cylinder 18, through the holes 23, at the
time the cup leather 20, was beneath them. The escape of the water thus con-
fined between the cup leathers 19, and 20, is regulated by the pin 24.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I wish it to be par-
ticularly understood that I do not limit myself to the precise details of construc-
tion hereinbefore described and illustrated on the annexed drawings, but that
I hold myself free to make such changes and alterations as conform with the
disposition and scope of my invention, and I declare that what I claim is:-
(1) In single or double outlet standpipes for hydrants, the combination of a

page_text: standpipe with a rod and cup for actuating the hydrant valve; a pin, slots and
handle for actuating the rod; a stuffing box for preventing leakage of water;
a cushion chamber, with opposed cup leathers, water supply orifices and regula-
ting pin for causing the rod and its cup and with it the hydrant valve to come
to its seat quickly and gently, all substantially as described and illustrated on
the annexed drawings.
(2) In single or double outlet standpipes for hydrants, the combination of a
standpipe with a rod and a cup and cushion chamber with its appurtenances,
substantially as described and illustrated on the annexed drawings.
(3) In single or double outlet standpipes for hydrants, the combination of a
standpipe with a rod and a cup, a pin working in guide slots and an actuating
handle, substantially as described and illustrated on the annexed drawings.
(4) The construction, arrangement and combination of parts, substantially as
described and illustrated on the annexed drawings.
WCTODET
GEO. C. DOUGLAS & Co.,
Chartered Patent Agents,
41, Reform Street, Dundee, Agents for Applicant.
GEO. C. DOUGLAS & Co.,
Chartered Patent Agents,
41, Reform Street, Dundee, Agents for Applicant.