Improvements in Water and like Taps
Year: 1899

page_text: Date of Application, 29th Sept., 1899-Accepted, 25th Nov., 1899
COMPLETE SPECIFICATION.
Improvements in Water and like Taps,
I, OTTO NINNEMANN, of 5, Rügener Strasse, Berlin, N., in the Empire of
Germany, Gas Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
1
This invention relates to a service-tap for water-supply pipes which is so con-
structed that the narrow and open end of the plug of this tap is disposed towards
and in the centre of the flow of the fluid and with the thickest and closed end
farthest from the water inlet, the conical plug being pressed into the bore of
the shell against the pressure of the water by an appropriate adjusting head er
cap. If the plug begins to leak a slight tightening of the adjusting head will
remedy the defect. For opening the tap a single turn is necessary. The tap
may easily be cleaned and polished and is easy to manipulate.
The improved service-tap is shown in the accompanying drawing in which:
Figure 1 is an elevation.
Figure 2 is a longitudinal section and
Figure 3 is a slightly modified form in sectional view.
The conical plug a with outlet aperture is so mounted in the shell c that its
axis is disposed in the direction of the in-flow of the fluid which latter enters
through the open end into the interior of the plug a. The outlet aperture in the
plug is advantageously of such a form as ensures a gradual and steadily increas-
ing outflow and thereby prevents sudden flow and shocks in the water pipes.
The pressing of the plug into its housing in the shell may be effected
by any appropriate means. In the arrangement shown in the drawings a screw
cap dis employed for this purpose and by screwing the same upon the screws-
threaded portion of the outer end of the shell renders the plug tight. It is pre-
ferable that the cap should not press directly upon the plug but through a
washer or ring and an elastic ring f arranged between the cap and the plug. By
simply tightening or releasing the cap d the plug may be adjusted to a proper
working condition. As shown in Figure 3 a spring or other elastic medium
may be used to keep the plug always tight so as to avoid the constant screwing
of the cap. In Figure 2 the plug is shown in its closed position and in Figure 8
in its open position.
fl
The mouth of the hollow plug a is advantageously formed with internally
rounded edges or bell-shaped and the interior of the shell may be widened for
the reception of the plug in such a manner that there exist no sharp edges over
which the water has to flow.
Instead of the handle shown in the drawing a hand-wheel may be used, or a
suitable key may be utilized for opening the tap. The tap may be made of any
desired form externally.
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. A service-tan with plug characterized by the arrangement of the plug in

page_text: the longitudinal axis of the direction of flow of the liquid so as to enable this
latter to enter at the free end of the plug into the interior thereof towards the
outlet aperture, the plug being provided with means for pressing it into its seat
against the pressure of the water, substantially as herein before described and
shown.
2. A service tap as claimed in Claim 1, characterized by the arrangement of an
elastic medium disposed between the plug and the means for tightening. it, sub-
stantially as herein before described and shown.
Dated this 20th day of Santember 1800
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicaut.