Improvements in Drawing Off Known Quantities of Liquids and Registering the same.
Year: 1894

page_text: Date of Application, 22nd May, 1894
Complete Specification Left. 22nd Feb., 1895-Accepted, 27th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in Drawing Off Known Quantities of Liquids and
Registering the same.
We, FRANCIS HENRY NALDER, HERBERT 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:-
In apparatus for drawing off known quantities of liquid and registering the
same, it is sometimes desirable to obtain no registration when the drawing
apparatus only draws air or gas, or a mixture of liquid and the two, and to
register as soon as the density of the liquid drawn reaches a predetermined value.
Our invention consists of a chamber filled or partly filled by the liquid being
drawn off; a float in the same, adjusted so that it rises when the liquid is above
a fixed density, and falls when the liquid is below that density.
A counter of any well known type, acted on by any convenient moving part of
the drawing mechanism, in any desired proportion to the amount of liquid drawn.
When the density of the liquid drawn is less than the previously fixed value,
the float falls, and disconnects the counter from the actuating part, so that it
does not register; throwing it into gear again when the density of liquid again
rises to or exceeds the fixed value.
Or we may sometimes attach the counter to the moving part, so that the counter
works both back and forwards with the handle, thus registering nothing, and cause
the float when it rises, to stop the backward notion allowing the forward one only,
or vice versa. For example, we may drive the counter through a friction-joint
connection, put a ratchet wheel on the counter and cause the float to let a pawl
engage with the ratchet when the float rises.
-
-
We sometimes transmit the motion from the float magnetically: Having the
float in a chamber which may be closed except as to the outlet and inlet for the
liquid, and carrying a magnet which attracts an armature on the outside of
the chamber, and thus effects the throwing into or out of gear of the counter, or
stopping the movement in one direction, or the armature may be on the float, or
may be the float itself, and the magnet may be outside the chamber.
Dated this 22nd day of May 1894.
FRAS. H. NALDER.
HERBERT NALDER.
C. W. S. CRAWLEY.
ALFRED SOAMES.

page_text: this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
In apparatus for drawing off known quantities of liquid and registering the same,
it is sometimes desirable to obtain no registration when the drawing apparatus only
draws air or gas, or a mixture of liquid and the two, and to register as soon as the
density of the liquid drawn reaches a predetermined value.
Our invention consists of a chamber filled or partly filled by the liquid being
drawn off a float in the same adjusted so that it rises when the liquid is above a
fixed density, and falls when the liquid is below that density.
A counter of any well known type, acted on by any convenient moving part
of the drawing mechanism, in any desired proportion to the amount of liquid
drawn.
When the density of the liquid drawn is less than the previously fixed value, the
float falls, and disconnects the counter from the actuating part, so that it does not
register; throwing it into gear again when the density of liquid again rises to or
exceeds the fixed value.'
Or we may sometimes attach the counter to the moving part, so that the counter
works both back and forwards with the handle, thus registering nothing, and cause
the float when it rises, to stop the backward motion allowing the forward one only,
or vice versa. For example We may drive the counter through a friction joint
connection, put a ratchet wheel on the, counter and cause the float to let a pawl
engage with the ratchet when the float rises.
:
We sometimes transmit the motion from the float magnetically. Having the
float in a chamber which may be closed except as to the outlet and inlet for the
liquid, and carrying a magnet which attracts an armature on the outside of
the chamber, and thus effects the throwing into or out of gear of the counter, or
stopping the movement in one direction. Or the armature may be on the float, or
may be the float itself and the magnet may be outside the chamber.
In order that our said invention may be fully understood and readily carried
into effect we will proceed to describe the drawings annexed.
4'
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an elevation of a portion of a beer engine of ordinary type to which
our registering apparatus may be applied.
Figure 2 shows to a larger scale an elevation partly in section of apparatus in
accordance with our invention.
Figure 3 is a plan of some of the parts shown by Figure 2.
*
Figure 4 relates to another form of our invention.
Figure 5 shows another modification.
Lilly
Figures 6, 7 and 8 show the counter.
the
In Figure 1a is the drawing handle, it is fixed upon an axis a¹ which thus
rotates partially as the handle is moved to and fro. The handle is connected by a
rod 6 with the rode of a pump piston working in the cylinder d. d' is the inlet to
the cylinder f
cask and d is the outlet usually connected by a pipe direct
to the spout but now passing first to our apparatus as shown by the other figures of
the drawing. In Figure 2 e' is the inlet receiving the liquid delivered from d² and
admitting it to the vessel e. f is a float in the vessel e which is raised when the
vessel is full of liquid but falls when froth is supplied in place of liquid. is an
outlet directly connected with the spout at which the liquid is drawn. At a is the
axis which also appears in Figure 1. is a ratchet wheel free to turn on this axis
but held between two spring washers so that it moves around on the axis somewhat
stiffly is a pawl engaging with the teeth of the ratchet and allowing it to be
moved by the handle a in one direction only. By bevilled wheels the ratchet / is
geared with the first axis of an ordinary counting train which indicates on dials
either the value of the quantities drawn or it may indicate in gallons or otherwise
the quantity drawn. When the float falls the counter does not register, for then a
"

page_text: lever k connected with the float displaces the pawl. The lever k has its fulorum
at and it operates as the drawing indicates on the tail of the pawl to lift it out
of the teeth of the ratchet which then works to and fro with the handle and makes
no permanent advance.
In Figure 4 the float is shown without any mechanical connection exterior to
the vessel in which it is contained, but the head of the float is a magnet and so also
is the forked end of the lever k. Or one or the other may be simply of soft iron
but it is better that both should be magnets with their poles properly opposed.
The parts will then move together as if mechanically connected.
In Figure 5 the axis a' carries a spur wheel ax which gives motion through an
intermediate wheel / to a third wheel 'm which replaces the ratchet wheel h. The
intermediate wheel is on the head of the float and when the float is up the
wheel m is driven by the movement of the axis a¹ but in one direction only namely
that indicated by the arrow. When the movement of the axis a is reversed the
float yields and the wheels a* and 7 pass out of gear.
When there is froth only in the vessel e then as before no registration takes
place.
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 :-
In apparatus for drawing off known quantities of liquids and registering the
same:-
1. A float and mechanism in connection therewith such that the float when
raised by the liquid in passing to the outlet establishes a connection between a
counter and the drawing mechanism such that the latter in its movement then
imparts a proportional movement to the former whilst on the contrary when the
float is not raised in consequence of the liquid failing to support it the counter
becomes disconnected from the drawing mechanism.
2. Drawing mechanism and a counter frictionally connected and a float and
mechanism in connection therewith so arranged that when the float rises it arrests
the movement of the counter in one, direction leaving it free to move in the
contrary direction.
3. Drawing mechanism and a counter driven thereby and a pawl under the
control of a float in such manner that when the float rises it operates upon the
pawl and causes the counter to register.
4. A float contained in a chamber and operating magnetically on mechanism
exterior to the chamber in such manner that when the float is lifted by liquid
beneath it a counter moved by the drawing mechanism is caused to register.
Dated this 22nd day of February 1895.