Improvements in Apparatus for Drawing Off Known Quantities of Liquid, and Obtaining a Register of the same.
Year: 1894

page_text: Date of Application, 13th July, 1894
Complete Specification Left, 13th Apr., 1895-Accepted, 18th May, 1805
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Drawing Off Known Quantities of
Liquid, and Obtaining a Register of the same.
We. FRANCIS HENRY NALDER, CHARLES WILLIAM SCOTT CRAWLEY, and
ALFRED SOAMES, all of 16 Red Lion Street, Clerkenwell, in the County of
Middlesex, Electrical Engineers, do hereby declare the nature of this invention to
be as follows:-
Our invention consists of improvements on the apparatus described in Patent
No. 12904 1889 which consists of a vessel filled to a predetermined height and
having taps to draw off from the same at various levels, each tap having a separate
commutator to work an electrical counter.
Instead of having a separate commutator or contact maker for each tap, we
cause all the taps to actuate one common commutator or contact maker to a different
extent and thus make a number of contacts corresponding to the particular tap in
use, and proportionate to the quantity of liquid which can be drawn by that tap,
each contact advancing a counter a determined amount.
-
Instead of an electrical counter or registering apparatus, we sometimes use a
mechanical counter of any well known type which is advanced by each tap an
amount proportionate to the amount of liquid drawn by that tap.
Dated this 12th day of July 1894.
FRAS. H. NALDER.
C. W. S. CRAWLEY.
ALFRED SOAMES.
Improvements in Apparatus for Drawing Off Known Quantities of
Liquid, and Obtaining a Register of the same.
We, FRANCIS HENRY NALDER, CHARLES WILLIAM SCOTT CRAWLEY, and
ALFRED SOAMES, all of 16 Red Lion Street, Clerkenwell, in the County of
Middlesex, Electrical Engineers, 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 :-
Our invention consists of improvements on the apparatus described in Patent
No. 12904, 1889, which consists of a vessel filled to a pre-determined height and
having taps to draw off from the same at various levels, each tap having a separate
commutator to work an electrical counter.
Instead of baring a separate commutator or contact maker for each tap, we
cause all the taps to actuate one common commutator or contact maker to a different
extent and thus make a number of contacts corresponding to the particular tap in
use, and proportionate to the quantity of liquid which can be drawn by that tap,
each contact advancing a counter a determined amount.
Instead of an electrical counter or registering apparatus, we sometimes use a
1 Pain Q.1 |

page_text: amount proportionate to the amount of liquid drawn by that tap.
In order that. our said invention may be fully understood and readily carried
into effect we will proceed to describe the drawings annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of the apparatus as arranged to work with a
mechanical counter..
Figure 2 shows the modification which is made when an electrical counter is
employed.
it
a is the measuring vessel, it is filled from an elevated cask or reservoir.through
a-pipe b on which are two taps c and d. The plug of the tape has an arm upon
and this is connected. with the floate. As with an ordinary ball cock the rising of
the float stops the further admission of liquor. when the vessel is filled to a
prearranged level.
There are three draw off'taps f' f'f' fitted upon the vessel a at différent levels
and on the plug of each of these taps there is an arm or handle by which it can be
turned one quarter round to open or to close the tap in the usual way. The tap f¹
when opened draws off the smallest measure which is sold, f when opened allows
an intermediate quantity to pass out and draws off the largest quantity, this
latter tap when opened allowing the whole contents of the vessel a to pass out.
'
upon
its
On the plug of each draw off tap also there is a cam; these cams are
marked ggg, they serve as the tap is opened to displace the lever h. The
lever his moveable around a stationary pin or pivot at h¹. When the cam g' operates
itimores the lever through a comparatively small angle; g'moves it through a
larger angle and moves it further still. These angles may be made proportional
to the measured quantities of liquor delivered by the several draw off taps. The
spring. h causes the return movement. The lever has an arc of teeth h
head, and these teeth are engaged with the teeth of a wheel i which consequently
turns to and fro with the movements off the lever h. The wheel'i is mounted
loosely on the axis of the first of a train of counting wheels similar to the index
of a gas meter.. This counting train is intended to register the quantity of liquor
drawn and it may do so in gallons and parts of gallons or the dials may be
graduated to show. the money which should have been paid by purchasers since the
last setting of the apparatus. A ratchet k is also carried by the first axis of the
counting train; it is fast upon it and a pawl mounted upon the wheel i engages
with the ratchet teeth. The arrangement is such that in the outward movement
of the lever the pawl drives the. ratchet wheel whilst in the return movement the
pawl passes over the ratchet teeth leaving the wheel at rest. The plugs of the
draw off taps are so bored and 'the cams upon them are so formed that on turning
the plug to open the tap the lever h receives its full amount of movement before a
passage is opened for the escape of the liquor from the vessel a.. is an outlet
pipe common to all the taps :f1j, it términates in a suitable delivery spout.
By the action of the lever also the tap d on the supply pipe is closed before
either of the draw off taps can be opened, and by the same lever the tap dis
opened again as soon as the draw off is closed'; a link m¨serves to connect an arm
on the plug of the tap d with the lever h.
'
When an electric.counter is employed the arrangements are similar but instead
of the toothed arc. . the lever h is provided with a circuit closing finger (see
Figure 2).. n and. n, are three stationary metallic. contact pieces which the
finger touches; and in so doing closes a battery current:
When the draw off tap is used the finger only comes as far as the contact'n¹
and the circuit is closed once only.. When the tap is used the finger d' comes
first upon the contact n' and. then upon the contact n' and two successive currents
pass in the circuit. Similarly the use of the tap f³ causes three currents to pass
in the circuit.

page_text: The circuit includes both a suitable constant battery and also an ordinary electric
counter having an electromagnet which as each current passes draws to itself an
armature overcoming a spring connected with the armature. The armature which
thus receives a to and fro movement is connected with a pawl which replaces the
pawl and in this way is caused to drive the counting train.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
1. A measuring vessel with taps to fill the vessel and to draw off from the same
at various levels each draw off tap when used-actuating a mechanical counter and
advancing it a suitable distance substantially as described.
2. A measuring vessel with taps to fill the vessel and to draw off from the same
at various levels, such draw off taps operating a contact maker, each to a different
extent and so making a number of contacts corresponding to the tap in use, giving
rise to electric currents which actuate an electric counter.
3. Apparatus substantially as described and illustrated by the annexed
drawings.
FRAS. H. NALDER.
C. W. S. CRAWLEY.
ALFRED SOAMES.