IMPROVEMENTS IN APPARATUS AND ARRANGEMENTS FOR MEASURING, CHECKING, CONTROLLING, AND REGISTERING THE MOVEMENTS, SPEEDS, AND QUANTITIES OF LIQUIDS, FLUIDS, GASES, POWDERS, AND OTHER PROVISIONAL SPECIFICATION BETWEEN GIVEN TIMES, PART OF WHICHS IS ALSO APPLICABLE TOING
Year: 1880

page_text: LETTERS PATENT to Joseph John Tylor and William Alfred Tylor, both of
Number 2, Newgate Street, in the City of London, Brassfounders, for an
Invention of "IMPROVEMENTS IN APPARATUS AND ARRANGEMENTS FOR
MEASURING, CHECKING, CONTROLLING, AND REGISTERING THE MOVEMENTS,
SPEEDS, AND QUANTITIES OF LIQUIDS, FLUIDS, GASES, POWDERS, AND OTHER
PROVISIONAL SPECIFICATION left by the said Joseph John Tylor and
William Alfred Tylor at the Office of the Commissioners of Patents on the
21st July 1880.
JOSEPH JOHN TYLOR and WILLIAM ALFRED TYLOR, both of Number 2, Newgate
Street, in the City of London, Brassfounders. "IMPROVEMENTS IN APPARATUS
AND ARRANGEMENTS FOR MEASURING, CHECKING, CONTROLLING, AND REGISTERING
THE MOVEMENTS, SPEEDS, AND QUANTITIES OF LIQUIDS, FLUIDS, GASES, POWDERS,
AND OTHER SUBSTANCES OR BODIES PASSING IN OR BETWEEN GIVEN TIMES, PART
OF WHICH IMPROVEMENTS IS ALSO APPLICABLE TO PUMPING APPARATUS."
This Invention relates partly to improvements in piston meters, partly to
improvements in rotary meters, and partly to improvements in apparatus for
registering and recording the movements, speeds, or quantities of liquids, fluids,
gases, powders, or other substances or bodies, passing through meters in or between
given times.
The improvements in piston meters consist in novel arrangements whereby two
uncontrolled, unconnected, or independent pistons, moving independently of each
other, are each so related to the valve arrangements of the other that each piston
at some definite point in its stroke shall be the means either of actually reversing
the valve of the other by certain mechanical instruments, or of so setting or placing
in readiness for action releasing or actuating mechanism connected with the said
valve of the other in order to reverse it, that the said other piston shall release and

page_text: so permit the reversal of its own valve at the proper period of its stroke. By
these means we obtain a more continuous flow of liquid or other substance through
the meter than heretofore. If packing be used in the form of a cup leather or
otherwise we prefer to use asbestos forced into a groove and capable of being
tightened by compression from outside.
When, as has heretofore been the practice in meters of this kind, the registration
has been effected from one of the uncontrolled or unconnected moving parts only,
any variation in the movement of the other uncontrolled or unconnected moving
part is not indicated on the dial, and the registration is therefore unreliable, and
more especially in the case of small quantities. In order to obviate this objection
we effect the registration of the quantity of liquid or other body passed by
uncontrolled or unconnected pistons by causing each piston to register by means of
differential mechanism quantities on the dial in proportion to the length of stroke
made by such piston, the indications of the two pistons being combined together
so as to shew the aggregate amount passed by the combined strokes of the
two pistons.
The improvements in piston meters further consist of certain novel means
whereby one or more pistons, diaphragms, or rams, may be worked in a closed case
without packing so as to balance pressures, and such pistons, diaphragms, or rams,
may be so arranged as to partially stop the incoming liquid, so that the end of the
stroke may be cushioned and shock thereby lessened, these improvements are also
intended to ensure a continuous stream and more accurate registration than
heretofore of small flows, such as those for domestic and other small supplies,
as well as larger flows for trade purposes and for hot or cold liquids.
Certain of the improvements in piston meters above described may be applied to
pumping purposes, and may be arranged so that the steam or other motive power
may be caused to act expansively in such way that it may utilize all or nearly all
the work contained in it, the cessation of motion by reason of the balancing of
the power by the work causing the valves to be reversed and the process to be
repeated.
The improvements in rotary meters relate to modifications of the fans or moving
parts, and to means of modifying the generated currents giving motion to same in
rotary meters of the kind, for example, referred to in the Specification of a Patent
granted to Alfred Tylor and Joseph John Tylor, bearing date the Twentieth day of
October, One thousand eight hundred and seventy six, and numbered 4056. These
improvements consist in certain modifications of the form of the blades or vanes of
the said fans or moving parts, and in modifications in the case, or stationary parts,
whereby.a more certain and correct measurement of the quantity passing is obtained
ät various velocities of flow.
The improvements in apparatus for registering the speeds or quantities of
liquids and other bodies passing through meters in or between given times consist
of certain improved arrangements whereby we are enabled to dispense with the
use of the centrifugal governours described in the aforesaid Specification of the
Patent granted to Alfred Tylor and Joseph John Tylor, No. 4056, A.D. 1876.
These said improvements comprise arrangements of mechanism in connexion with
clockwork whereby a diagram is formed on a moving strip of paper by means
of a pencil or marker moved by a cam or other equivalent mechanism in
connexion with the working parts of the meter across the said strip of paper to
a certain distance during the passage of a certain quantity of liquid or other body
through the meter, and to cause the pencil to return suddenly to the zero line
immediately the said certain quantity has passed, being again moved across the
paper to a similar distance during the passage of the next similar quantity, and so
on so long as a liquid or other body is passing through the meter. The strip of
paper is caused to travel lengthwise intermittently by the clockwork at equal
intervals of time, and a diagram is produced by the combined reciprocations of, the
pencil across the paper and the intermittent longitudinal motion of the latter,

page_text: which diagram consists of a series of horizontal and vertical, or nearly vertical,
lines succeeding one another to a certain point from the zero line and then a
vertical or nearly vertical line returning to zero, thus forming a succession of
triangular or other shaped diagrams; each such diagram representing the passage
through the meter of the certain prearranged quantity or fraction of such quantity.
By this arrangement the exact moment of time when a certain quantity has passed,
or the exact moments between which such quantity has passed, is or are marked or
shown on the line of the diagram itself. The clockwork may be caused to mark or
puncture the strip of paper at certain intervals of time in order to form a check
upon the times as indicated by the horizontal lines traced by the pencil.
The clockwork is preferably driven by a single main spring, which main spring
is caused to wind up at intervals an auxilliary spring which imparts the intermittent
longitudinal movements to the strip of paper.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph John Tylor and William Alfred Tylor in the Great Seal
Patent Office on the 21st January 1881.
JOSEPH JOHN TYLOR and WILLIAM ALFRED TYLOR, both of No. 2, Newgate Street,
in the City of London, Brass Founders. "IMPROVEMENTS IN APPARATUS AND
ARRANGEMENTS FOR MEASURING, CHECKING, CONTROLLING AND REGISTERING THE
MOVEMENTS, SPEEDS, AND QUANTITIES OF LIQUIDS, FLUIDS, GASES, POWDERS,
AND OTHER SUBSTANCES OR BODIES PASSING IN OR BETWEEN GIVEN TIMES, PART
OF WHICH IMPROVEMENTS IS ALSO APPLICABLE TO PUMPING APPARATUS."
"
This Invention relates partly to improvements in piston meters, partly to
improvements in rotary meters, and partly to improvements in apparatus for
registering and recording the movements, speed, or quantities of liquids, fluids,
gases, powders, or other substances or bodies passing through meters in or between
given times.
The improvements in piston meters consist in novel arrangements whereby two
uncontrolled, unconnected, or independent pistons moving independently of each
other, are each so related to the valve arrangements of the other that each piston at
some definite point in its stroke shall reverse the valve of the other by means of
certain mechanical instruments.
Figure 1 of the Drawings shews a longitudinal section taken on line A, A, of
Figures 3 and 4 of such a piston meter, with the said novel arrangements applied
thereto.
Figure 2 shews a longitudinal section of same taken on line B, B, of Figures
3 and 4.
Figure 3, a plan of same, with the valve chest and valves removed to shew more
clearly the ports and passages beneath.
Figure 4, a transverse section of same taken on line C, C, of Figures 1, 2, and 3.
A represents the main body or casing of the meter, in which two pistons or
plungers B and B₁ (see Figure 4) work independently of each other. Each of these
pistons or plungers are composed in the example shown of two plungers connected
together by a neck or stem of a smaller diameter than the said plungers; these
latter work more or less water-tight through openings in the meter casing into
chambers secured to the ends of the latter, the plungers B, B, entering the
chambers C, C, and the plungers B', B', entering the chambers C¹, C. D is the
valve face; E, the valve box, into which the inlet pipe F opens; G is the outlet
passage; H and Hare two slide valves of ordinary construction, with the usual
exhaust chamber formed in them. The valve H is situated over and is operated by
the pistons or plungers B¹, but relates to the pistons or plungers B. The valve H¹
is situated over and is operated by the pistons or plungers B, but relates to the
pistons or plungers B¹. I and J are inlet ports governed by the valve H', and K
the corresponding exhaust port. L and M are inlet ports governed by the valve H,
and N the corresponding exhaust port. The port Í is connected by the passage I'
with the right hand chamber C¹, and the port J by the passage J¹ with the left
hand chamber C¹. The port L is connected by the passage L¹ with the left hand
chamber C, and the port M by the passage M' with the right hand chamber C.
The exhaust ports K and N both communicate with the space O, from whence a
passage K, N, leads to the outlet passage G. P and P' are levers turning on their
fulcra Q and Q¹; they are adapted at their upper ends to act upon and to move the
slide valves H¹ and H respectively when their lower ends are pushed in either
direction by their corresponding pistons or plungers B or B¹. One of the levers P, for
example, may be arranged so as to act by a pawl and ratchet R and worm or other
gearing S upon the registering mechanism T each time it makes an alternate
movement in a manner usual and well known in this class of apparatus. It will

page_text: now be understood that, assuming the piston B to have been driven from right to
left, as in Figure 1, by the liquid entering the right hand chamber C, it will have
turned the lever P so as to move the valve H to the right, as in the Figure,
uncovering the port I. Liquid then passes from the valve box E by the passage I' .
to the right hand chamber C, and the piston B¹ will be moved thereby from right
to left, the piston B remaining stationary until the piston B¹ has nearly completed
its stroke from right to left. At the moment the piston B¹ completes its said stroke
it turns its lever P' so as to cause the valve H to uncover the port L, by which
liquid is admitted through the passage L' into the left hand chamber C, driving the
piston B from left to right, the piston B' meanwhile remaining stationary. At the
moment when the piston B completes its motion from left to right it turns its
lever P so as to move the valve H₁ to the left, uncovering the port J; liquid then
passes from the valve box E by the passage J' to the left hand chamber C₁, and the
piston B¹ will be moved thereby from left to right, the piston B meanwhile
remaining stationary in its right hand position. As the piston B' reaches its right
hand position, it turns its lever P¹ so as to move the valve H to the left, uncovering
the port M, which allows liquid to pass from the valve box E by the passage M¹
into the right hand chamber C, driving the piston B from right to left, whereby the
lever P is again acted on and the valve H' returned to the position shewn in
Figure 1, the cycle of operations being then repeated.
By these means we obtain a more continuous flow of liquid or other substanee
capable of being measured in such meters than has been effected heretofore.
It will be observed that in the arrangement shewn in Figures 1, 2, 3, and 4, the
set of inlet ports I and J are respectively connected with the ends of the piston to
which they relate, opposite to the position in which they themselves are placed in
the valve face, but that the ports L and M are respectively connected with those
ends of the pistons to which they relate, which correspond to their own position in
the valve face. In other words, the passages for I and J are crossed, while those
for L and M are direct. If preferred, both sets of passages may be crossed, or both
led direct, but in that case one of the valves must be moved by its actuating. piston
in the opposite sense to that described with reference to Figures 1, 2, 3, and 4,
that is to say, one valve must move in the same direction as its actuating piston,
and the other in the direction opposite to that of its actuating piston, or one of the
valves must be so constructed that, although moved in the same direction as the
other, it shall produce the reverse effect.
Instead of flat valves, disc valves, plug cocks, or what are known as Corliss
valves, may be employed in these arrangements, which arrangements are applicable
whether pistons, plungers, rams, or diaphragms are employed.
If packing be used for the pistons or plungers of meters of this description we
use asbestos packing, forced into a groove, and capable of being tightened by
compressing from outside. Figure 9 illustrates this arrangement, in which Å
represents the body or barrel of the meter, B the plunger, and C the asbestos
packing, forced into the groove D by means of the screw E. In some cases we also
employ what is known as "white metal," run in a molten state into a groove in the
meter body or barrel when the plunger is in place, as shewn in Figure 10, in which A
is the body or barrel of the meter as before, B the plunger, C the white metal
packing, and D the groove into which it is run. This latter process is analogous to
that heretofore adopted in some cases for the manufacture of shaft bearings and
other similar purposes. By these means boring out the collars through which the
plungers work is avoided.
When, as has heretofore been the practise in meters of this kind, the registration
has been effected from one of the uncontrolled or unconnected moving parts only,
any variation in the movement of the other uncontrolled or unconnected moving
part is not indicated on the dial, and the registration is therefore unreliable, and
more especially so in the case of small quantities.
In order to obviate this objection we effect the registration of the quantity of
liquid or other body passed by uncontrolled or unconnected pistons by causing each

page_text: piston to register, by means of what we call differential mechanism, quantities on
the dial in proportion to the length of stroke made by each piston, the indications
of the two pistons being combined together so as to shew the aggregate amount
passed by the combined strokes of the two pistons.
Figure 5 of the Drawings illustrates our arrangements for this purpose; the
Figure represents a transverse section through a meter of this kind, but with the
valves arranged inside and at the bottom of the meter body instead of outside, and
at the top of same in a separate valve box, whereby the pistons themselves act
directly upon such valves without the intervention of the levers P and P', shewn
in Figures 1, 2, and 4, but if preferred the valves may be moved by levers or other
instruments in a manner similar to that already described. Letters of reference in
this Figure, which are similar to those in Figures 1, 2, 3, and 4, indicate parts
similar to those in such said Figures. U and U¹ are friction rollers mounted so as
to turn freely on spindles V, VI, which themselves turn in suitable bearings in the
meter body; these friction rollers are, by preference, formed hollow on their
'circumferences corresponding to the circular curve of the pistons B and B', so that
as these move backwards and forwards the said friction rollers rotate backwards
and forwards on their spindles V, V₁, by frictional contact with such pistons.
The friction rollers U, U¹, each carry spring clicks or. pawls which gear with
ratchet wheels W, W¹, fastened on the spindles V, V₁. The spindle V carries
a worm X gearing into a worm wheel on the vertical spindle Y, which transmits
motion to the wheel Z fast on the dial Z, whereby the latter is caused to revolve.
The spindle V¹ also carries a worm X¹ gearing into a worm wheel on the vertical
spindle Y, which transmits motion to the wheel Z fast on the spindle or
axis of the index finger Z³, whereby the latter is caused to revolve in a direction
opposite to that of the dial Z¹. The effect of these arrangements is, therefore, that
at each alternate stroke of the pistons B and B¹, the dial Z¹ and the index finger Z³
are rotated in opposite directions to an extent proportionate to the number of teeth
of the ratchet wheels W, W', taken up by the pawls on the friction rollers U, U',
which number is proportionate to the lengths of the strokes made by the pistons,
and the registration made by the dial Z¹ and the index Z3 will be the sum of the
quantities passed by the two pistons. The pawls for moving the ratchet wheels
W, W¹, may be actuated by the pistons by the intervention of levers and links, or
other suitable mechanical instruments instead of by friction rollers, if preferred.
The improvements in piston meters further consist of certain novel means
whereby the pistons, diaphragms, or rams of such meters are adapted so as to
partially stop the incoming liquid in order that the end of the stroke may be
cushioned, and shock thereby lessened. These improvements are also intended to
ensure a continuous stream, and more accurate registration than heretofore of small
flows, such as those for domestic and other small supplies, as well as larger flows
for trade purposes, and for hot or cold liquids.
One means we employ for lessening shock is to contract the inlet to the meter,
as shewn at F', in Figures 1 and 2. Another method is to apply an india rubber
buffer at the ends of the pistons, plungers, or rams, as shewn at B2, in Figure 1,
such buffer striking the end of the chamber C instead of the solid end of the
piston, plunger, or ram. Other methods are shewn in Figures 6, 7, and 8, in all
of which Figures, letters of reference similar to those in Figures 1, 2, 3, and 4,
denote parts similar to those shewn in the said Figures.
In Figure 6 the lever P carries a weight P2 at its lower end; when the piston B
turns the lever P and moves the valve H' into the position shewn, for the purpose
of admitting liquid to the right hand end of piston B¹, the said weight P² is raised,
and has a tendency to follow the piston B when the latter begins to move from left
to right. A little before the piston B¹ reaches its left hand position, it moves the
valve H of Figures 1, 2, and 4, by means of its lever (which is also in this case
weighted similarly to the lever P in Figure 6), so as to admit liquid to the left
hand of piston B; the latter immediately begins to move towards the right hand,
and the weight 2 following it up moves the lever P into a vertical position,

page_text: bringing the valve H' into the central position so as to cover the port I, thereby
stopping the flow of liquid to the right hand of piston B¹, and causing the latter to
come to rest without shock, a similar action taking place at each movement in
either direction of each piston.
In Figure 7 the lever P instead of carrying a weight at its lower end, as in
Figure 6, is closed into a loop or bent under at that part, and a collar Ps is brought
by the motion of the piston B to press against the bottom of the said loop or bent
part, so as to turn the lever into a vertical position, and the valve H' into a central
one for the same purpose as described in reference to Figure 6, and then to slip
over the top of such looped or bent part, and leave the lever in the said vertical
position until the left hand part of the piston comes against it, and turns it further
to the left so as to change the valve H³ to the left, and so on.
Figure 8 shews the end of the piston formed with a shoulder B³, which when the
said piston is at the end of its stroke takes into a recess formed to receive it, and
thereby more or less completely closes the inlet passage M' for the admission of
liquid behind it.
The above described arrangements for causing the movements of one piston to
control and regulate the movements of the valve of the other piston, are also
applicable to water power engines for pumping and other purposes.
The improvements in rotary meters relate to modifications of the fans or moving
parts, and to means of modifying the generated currents giving motion to the saine
in rotary meters of the kind, for example, referred to in the Specification of a
Patent granted to Alfred Tylor and Joseph John Tylor, bearing date the Twentieth
day of October 1876, and numbered 4056. These improvements consist in certain
modifications of the form of the blades or vanes of the said fans or moving parts,
whereby a more certain and correct measurement of the quantity passing is
obtained at various velocities of flow, and in modifications in the cases
stationary parts.
or
Figure 14 shews a longitudinal section through the axis, and Figure 15 an
elevation at right angles to the axis of one of our improved fans, which consists
of a series of blades or vanes A, A, connected to one another by a solid web B,
the said fans being by preference moulded in one piece and composed of hardened
india-rubber.
We also employ in connection with fans of this or the ordinary description
the following arrangement:-In Figure 14 C is a small hole formed in the toe-
piece D, which small bole C is connected with the inlet of the meter, the result
of which is, that when the difference of pressure between the inlet and outlet is
considerable, by reason of a rapid flow of water through the meter, a certain flow
of water takes place through the hole C in the toe piece, and the weight of the
fan is taken more or less off the toe piece, whereby friction on such toe piece is
lessened at such times.
Figures 16 and 17 shew our modifications in the case or stationary parts of the
meter; Figure 16 shews the manner in which the inlet openings between the
outer annular channel A. and the inner chamber B containing the fan have hereto-
fore been made and applied; C, C, represent these openings, which consist of long
narrow slots, which it has been customary to form in separate pieces of metal D, D,
and then to dovetail these pieces into the rim of the inner chamber. This is
a somewhat inconvenient and costly process, and in order to obviate it we employ
the means shewn in Figure 17, in which it will be seen that circular openings E, E,
are formed in the outer rim in such a position that the said inlet. slots C, C, can
readily be formed through the said openings E, E, which are subsequently closed
up by screw plugs or other suitable means.
The improvements in apparatus for registering the speeds or quantities of liquids
and other bodies passing through meters in or between given times consist of certain
improved arrangements whereby we are enabled to dispense with the use of the
centrifugal governors described in the Specification of the Patent granted to Alfred
Tylor and Joseph John Tylor, No. 4056, A.D. 1876. These said improvements

page_text: comprise arrangements of mechanisin in connection with clockwork whereby a
diagram is formed on a moving strip of paper by means of a pencil or marker
moved by a cam or other equivalent mechanism in connection with the working
parts of the meter across the said strip of paper to a certain distance during the
passage of a certain quantity of liquid or other body through the meter, and to
cause the pencil to return suddenly to the zero line immediately the said certain
quantity has passed, being again moved across the paper to a similar distance
during the passage of the next similar quantity, and so on, so long as a liquid or
other body is passing through the meter. The strip of paper is caused to travel
lengthwise intermittently by the clock work at equal intervals of time, and a
diagram is produced by the combined reciprocations of the pencil across the paper
and the intermittent longitudinal motion of the latter, which diagram consists of a
series of horizontal and vertical, or nearly vertical, lines succeeding one another to
a certain point from the zero line, and then a vertical, or nearly vertical, line
returning to zero, thus forming a succession of triangular or other shaped diagrams,
each such diagram representing the passage through the meter of a certain pre-
arranged quantity or fraction of such quantity. By this arrangement the exact
moment of time when a certain quantity has passed, or the exact moments between
which such quantity has passed, is or are marked or shewn on the line of the
diagram itself. The clockwork may be caused to mark or puncture the strip of
paper at certain intervals of time in order to form a check upon the time as
indicated by the horizontal lines traced by the pencil. The clockwork is preferably
driven by a single main spring, which main spring is caused to wind up at intervals
an auxilliary spring which imparts the intermittent longitudinal movements to the
strip of paper.
Figure 11 is a front view and Figure 12 a side view of the above mentioned
registering apparatus; and Figure 13, a detached view of part of same. A represents
the barrel containing the mainspring of the clockwork, which spring is wound up
from time to time by hand as may be required; B, a toothed wheel formed on or
secured to the said barrel, and gearing into a toothed wheel C formed on or secured
to the barrel D of an auxilliary spring, the arbor of which is shewn at E; this
arbor E carries an escape wheel F, the movements of which are regulated by an
escapement or detent G; the other end of the arbor E carries, secured thereto, a
roller H; I is a second roller carried loosely on a stud on a lever, which is pressed
by an adjustable spring in such manner that the said roller I may be caused to
press with any required degree of pressure upon the roller H so as to be turned by
frictional contact therewith; J is a bobbin mounted on any convenient part of the
apparatus and free to turn on its axis. This bobbin carries wound on it the strip
of paper K or other substance capable of having a diagram marked thereon, which
is passed between the two rollers H and I. The action of the mainspring is
regulated by the pendulum L in the usual way by means of any suitable escape-
ment. The escape wheel of this escapement is connected either directly or otherwise
with a tappet or other mechanism for the purpose of operating upon the detent or
escapement G so as to cause the latter to liberate a tooth of the escape wheel F at
certain intervals of time, as measured by the pendulum L. Each time a tooth of
the escapement G is so liberated the auxilliary spring in the barrel D turns the
arbor E, and thereby the roller H a fraction of a revolution, drawing the strip of
paper K forward a corresponding distance. The mainspring in A winds up the
auxilliary spring in D during each interval of time by the exact quantity which
the latter will have been unwound by each release of a tooth of its escape wheel.
The strip of paper K thus receives an intermittent forward movement at each
prearranged interval of time.
The movements of the pencil or marker are effected in the following manner :-
A snail or cam M, seen in Figures 12 and 13, or other mechanical equivalent,
capable of imparting uniform and continuous, or intermittently continuous, motion
is actuated from the moving parts of the meter by suitable gearing in such manner
that it shall turn on its axis once for any given quantity of liquid (500 gallons for

page_text: example) passed through the meter. This cam M, either directly or by a link N, pushes
out the lower end of a lever O whilst the prescribed quantity is passing; as soon as
the radial part of cam M reaches the pin or other driving point of the link N or
lever O, the latter is drawn back suddenly by means of a spring. The upper end of
the lever O thus receives a slow motion from right to left in Figure 12, and then a
sudden quick motion from left to right, and the pencil or marker, which is
connected by a rod or other suitable means to the upper end of the said lever,
participates in the motions thereof.
The result of the intermittent longitudinal movements of the strip of paper, and the
alternate slow and quick transverse movements of the pencil is the production of n
series of diagrams of equal altitude of the character shewn in Figure 13a, in which each
short horizontal or nearly horizontal line represents the prescribed interval of time
between each movement of the strip of paper. In the diagrain shewn the interval
corresponds to ten minutes, and each irregular diagram composed of a series of
vertical and horizontal or nearly horizontal step like lines on one side, with a
vertical line on the other, represents a quantity of (in the case shewn) 500 gallons
passed in as many periods of ten minutes each as there are horizontal or nearly
horizontal lines in the left hand boundary of the figure, any fractional part of the
total distance traversed at each outward stroke of the pencil across the paper
indicates the corresponding fractional part of the quantity passed as a check upon
the time; and to facilitate the reading of the diagram a pricker P may be operated
at stated intervals (say every ten minutes) by the clockwork so as to make a series
of punctures along the slip of paper, as shewn by dots on the diagram.
Instead of the pencil or marker being returned inwards suddenly, it may be
returned slowly at the same rate as it moves outwards, and be made to register the
quantity passing through the meter both in its outward and inward movements,
producing a diagram similar to that shewn in Figure 13b, in which the step-like
line to the left of each quantity diagram must be read for fractional parts from the
bottom upwards, and the step-like line to the right of each quantity diagram must
be read for fractions from the top downwards. In order to effect this, the cam M
instead of having a radial part, as shewn in Figure 13, will be formed alike on both
sides, and in this case if the said cam be made as a grooved cam it will move the
link N and lever O in and out without the assistance of a spring.
Having now described the nature of the said Invention, and the manner in which
the same is to or may be carried into effect, we would have it understood that what
we claim is,-
First. In piston meters with uncontrolled, unconnected, or independent pistons,
plungers, rams, or diaphragms, the arrangements of valves and passages in
connection with an external valve box into which the inlet opens, whereby the
liquid or other body is conducted from the said valve box to the said pistons,
plungers, rams, or diaphragms, the outlet for such liquid or other body being
through the space between the said pistons, plungers, rains, or diaphragms,
substantially as hereinbefore described and illustrated in Figures 1, 2, 3, and 4 of
the Drawings.
Second. In meters in which plungers or rams working through a collar are
employed, the use of asbestos and metallic packings, as herein before described and
illustrated in Figures 9 and 10 of the Drawings.
Third. The employment in connection with the registering mechanism of piston
meters of the kind referred to in the first claim, of apparatus whereby the dial and
index finger are caused to revolve in opposite directions, so as to indicate the
combined measuring effect of the two pistons or other moving parts, substantially
as hereinbefore described and illustrated in Figure 5 of the Drawings.
Fourth. The arrangements for stopping more or less the inlet of liquid to the
pistons or other moving parts of such meters before such pistons or other moving
parts reach the ends of their strokes, substantially as herein before described and
illustrated in Figures 6, 7, and 8 of the Drawings.

page_text: Fifth. The improved fan for rotary meters, constructed and arranged as
herein before described and illustrated in Figures 14 and 15 of the Drawings and
for the purposes set forth.
Sixth. The employment of a small hole in the toe piece of the fan of rotary
meters connected with the inlet of the meter, as hercin before described and
illustrated in Figure 14 of the Drawings, and for the purpose set forth.
Seventh. The combination of the improved fan forming the subject of the fifth
claim with containing cases of the internal form shewn in Figures 16 and 17,
whereby the said fans are caused to move in more direct proportion to the velocity
of the liquid passing through the meter than heretofore.
Eighth. The arrangement of the cases or stationary parts of such rotary meters
whereby the inlet openings can be more easily made than heretofore, as hereinbefore
described and illustrated in Figures 16 and 17 of the Drawings.
Ninth. For registering or recording the motions of the moving parts of meters in
given times, and thereby the quantities of liquids or other bodies passing through
them, the construction and use of apparatus in which a pencil or other marker is
caused to traverse backwards and forwards across a strip of paper or other suitable
substance which moves intermittently in a longitudinal direction, whereby a series
of diagrams of equal altitude, each representing equal quantities of liquids or other
bodies passed through the meter are formed, of the kind shewn in Figures 13ª and 13b,
composed on one or both sides of a series of cotinuous vertical and horizontal or
nearly horizontal step-like lines, which indicate the times of passage of the aforesaid
prearranged equal quantities, and proportionately of fractions of such quantities,
substantially as hereinbefore described and illustrated in Figures 11, 12, and 13 of
the Drawings.
Tenth. For effecting the intermittent longitudinal movement of the strip of
paper or other substance referred to in the ninth claim, the use of an auxilliary
spring wound up by the main spring of the clock work, and liberated by an
escapement actuated by the said clock work at regular intervals of time,
substantially as hereinbefore described and illustrated in Figures 11 and 12 of the
Drawings.
In witness, we, the said Joseph John Tylor and William Alfred Tylor, have
hereunto set our hands and seals, this Twentieth day of January, in the
year of our Lord One thousand eight hundred and eighty one.