Year: 1886

page_text: Date of Application, 9th Mar., 1886.
Complete Left, 9th Dec., 1886.
Complete Accepted, 11th Jan., 1887.
I, JOHN JACKSON of I Buildings Verulam Street Gray's Inn Road Gauge
Manufacturer do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide an improved combination filling and
testing apparatus which will dispense with all necessity for connecting and dis-
connecting separate filling and testing apparatus as at present requisito in order to
fill and test a boiler or other machine or mechanism.
This I effect by constructing a pump provided with suitable suction and delivery
valves and the lever of which is fitted with a double guide carried on guide rods
mounted in suitable bearings so as to regulate the action of the piston and prevent its
being bent or otherwise injured.
A hand wheel mounted on a screw shaft working in a second guide carried on the
before mentioned guide rods serves to regulate and control the pressure of the pump
and to fix it in any desired position.
In order to reduce or let off the pressure on the boiler or other machine or
mechanism I fit the delivery valve with a screw regulator furnished with a suitable
lever so that by turning such regulator a half revolution or more the pressure is either
reduced or let off as desired.
My improved apparatus may be used either as a pump for filling purposes only or
as a pump and tester and by fitting a series of boilers or gauges or other machines or
mechanisins with a connecting pipe such series can be simultaneously filled and tested
or filled or tested therewith.

page_text: A New or Improved Filling and Testing Apparatus.
I JOHN JACKSON c/o Messrs. E. F. Bamber & Co. 6 St. Swithin's Lane E.C.
Engineer 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 relates to that class of apparatus which is employed for testing
boilers and other machines and mechanism. In figures 1 & 2, a plunger (A) of
special construction works in the vertical cylinder (B) the upper extremity of which
is slightly bell-mouthed upwards. At the foot of the cylinder (B) the suction or
foot valve (C) is seated on the valve seating (D), just above the tail piece (E) for
connecting with the supply tank or reservoir. A horizontal water way (F) passes
from the foot of the cylinder (A), and at its other extremity is a vertical uptake (G.),
the top of which is closed. with a water-tight joint (H), or may have a pressure gauge
fixed upon it. In the vertical uptake (G) a check-valve (I) is placed which has its
seating just below the lower portion of the connecting pipe (or nozzle) (J) with tho
apparatus to be tested. In front of the uptake (G) is the bye pass (K), which is
closed by means of a screw (L) with a taper end (M) which is screwed into a circular
hole (N) in the metal of the uptake, thus forming a water-tight joint. The plunger is
shewn in fig. 3., and consists of a solid metal rod (a), with a screw thread (f) at the
end of it, and a circular shoulder (b) against which presses a leather washor (c),
against this a metal washer (d) with a recess (e) in it for receiving the packing,
another or other leather washers (c) and another or other metal washers with
recess (e); these washers are kept together by means of a solid piece (7) having a
recessed portion (e), and a female screw (h) a part of the way through it, which is
screwed on to the screw thread (f) at the end of the plunger, thus keeping the whole
tightly together. The upper part of the plunger (A) is fixed into the boss (0) of
the cross-piece (P) which works between the metal guides (Q). These guido rods (Q)
are fixed vertically and parallel into the top part of the body of the pump, and secured
in their position by means of lock nuts (R) and the upper cross piece (S) to which they
are also secured by lock nuts (R). The cross piece (P) is of curved section both above
and below, so as to allow of greater play of the pump handle (T) which works in the
slot (U) in the same, and through the pump handle (1) and the sides of the slot (U)
passes the bolt (V), which acts as a fulcrum; the other end of the pump handle is
connected to the back of the pump by means of the rocking-piece (W) with the
-double joints (X). On top of the cross-piece (P) a similarly shaped cross piece (\)
plays between the metal guide rods (Q). On the upper portion of this is a boss (2)
which is hollowed out to receive the rounded head (i) of the scrow (); the screw
head (1) has a round groove (k) allowing of its being connected with the boss (Z) by
means of a short screw (1) the end of which plays into the rounded groove (E). The
screw () passes through the upper cross piece (S); on this cross piece is a boss (m)
through which and the cross piece a female screw is tapped, allowing the screw (j) to
work through it. On the top of the screw (j) is fixed a wheel (n) or other arrange-
ment for turning it. At the end of the water way from the uptake (G) is the

page_text: nozzle (J) on which a metal washer (o) is firmly secured, thus allowing a revolving
connecting nut (p) to be put on, which can be turned round without the joint being
broken. Or the pump may be connected with the work by means of a stop cock
(fig. 4) with a gauge fixed on it at (g). This stop cock has the screw plunger (r)
with a taper end similar to (M) let into a circular hole in the metal of the water way
leading to the work to be tested, and when this is screwed in tight, the pressure is
taken off the pump and remains on the gauge and work to be tested; in this form of
stop cock the packing is relieved of pressure after the pump is disconnected.
In applying the pump it is first necessary to unscrew the bye pass screw (L) from
its seating; several strokes are then made with the pump handle to remove the air
within the cylinder (B) and the water passages (F, G, J) when the screw (L) is
screwed firmly into its seating. The water is then pumped into whatever has to be
tested, and pressure put on by pumping in the usual manner. When the work to be
tested is tight, further pressure can be put on gradually by turning the screw
down by means of the wheel or other apparatus (n) thus driving the plunger
down into the cylinder (B).
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :—
(1) The pump substantially as described in the manner and for the purposes herein-
before specified with or without the screw or other similar arrangement (j).
(2) The bell mouth form of cylinder.
(3) The special construction of plunger.
The addition to the pump of the screw (j) or other similar apparatus for
forcing the plunger gradually into the cylinder.
The revolving joint connection for fixing onto the nozzle of the pump.
(6) The stop cock for relieving the pressure from the pump substantially as
described.
(7) The special working of the cross pieces between the guide rods substantially as
described.