Improvements in or Additions to Coin-freed Gas or Liquid Meters.
Year: 1889

page_text: Date of Application, 21st Dec., 1889
Complete Specification Left, 21st Oct., 1890-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Coin-freed Gas or Liquid
Meters.
I, ROWLAND WILLIAM BROWNHILL, of Lozells Road, Aston, near the City of
Birmingham, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a prepayment ineter, or apparatus for supplying pre-
determined quantities of gas or liquid, in exchange for coin or equivalent, and is an
improvement upon two several Letters Patent granted to me, and respectively bearing
date the 13th day of May 1887, No. 7012, and May 2nd 1888 No. 6537.
I will describe my invention in connection with a gas meter.
The gas meter is of the ordinary kind, and the gas passing therethrough is
regulated by the drum of the meter, which is driven by the pressure of the gas, whose
volume it measures.
The chambers of the drum are of known capacity, and the revolutions of it are
conveyed through the intervention of trains of wheel-work to a wormed stem or stalk,
which is in gear with a loose worm wheel, which turns upon an independent_axis,
which works within bearings, or bracket bearings, carried by the framing of the
appliance.
Made fast upon this said independent axis, at the back of the said worn wheel, is
a quantity wheel, with ratchet teeth cut upon its periphery; also made fast upon the
said axis, and in front of the said worm-wheel, is a blocking arm, which moves with
the axis and quantity wheel, and forms a block, for stopping the rotation of the drum,
on the same coming within the path of a finger stop, carried by the worm stalk as
aforesaid, so that on the blocking arm returning to its normal position, by the
consumption of gas, it comes within the path of the said finger, and stops the gas
supply thereby.
Mounted at the back of, and in the same axial line as the wheels and arm, as
aforesaid, is a three arm bell crank lever, with one of the said arms directed upwardly,
another obliquely downwards, and the third nearly horizontally to the right; and to
the end of the said nearly horizontal arm, is a pusher rod, directed through the
enclosing casing, and by means of which, the quantity wheel, and its blocking arm,
is moved forwardly through one twelfth of a rotation, equivalent to one pennyworth
gas, at each downward movement of the said pusher rod.
of
The crank lever is brought back to its normal position, by a coiled spring, connected
to a fixed part of the framing, and its obliquely directed arm, whilst fulcrumed to the
perpendicular arm, is a counterpoised coin lever, with the underside of the end of its
outwardly directed arm, inade step like, which normally rest within a gap, transversely
cnt within the lower part of a coin shoot or guide, directed from the coin slit, which
is disposed vertically, and at right angles to, the direction of the shoot, to prevent
fraud, by the insertion of a wire or equivalent.
The lower part of the shoot, has a stop, upon which the enlarged part of the
end of the coin lever as aforesaid, rests, when a coin is resting upon its top side.
This coin lever, has near its fulcrum, an outstanding tooth, which is made to
engage with the teeth of the ratchet wheel, and thereby give the necessary feed or
movement to the blocking arm.
Frictional contact between the quantity and worm wheels, as aforesaid, is performed
by a clutch, which admits of the quantity wheel being turned the necessary distance,
through the intervention of the coin lever and pusher rod.
It may be observed, that the said counterpoised coin lever, rocks about the erect arın
of the bell crank lever, as a movable fulcrum, so that as the said bell crank lever, or

page_text: rather its erect arm, moves from left to right, the coin lever is taken with it, and
its tooth made to engage with one of the teeth of the quantity wheel, while its stepped
end is taken from under the suspended coin, which is allowed to fall into the receiving
box below.
The independent axis's outer end carries a finger, which traverses in front of a
graduated dial, carried by a bracket plate.
OPERATION.
Drop a coin through the coin slit, when the same falls by gravity to the lower
end of the shoot, and comes upon the outer and free end of the coin lever, and
depresses the same, with the enlarged part resting upon the bar or bottom of the gap
of the shoot, wherein it works.
In this position, the coin is suspended, when by pressing the pusher rod, the
erect arm is turned to the right, the coin lever moved bodily from right to left, its
end removed from under the coin, which now drops into the receiving box, the tooth
taken into one of the teeth of the ratchet and quantity wheel, which is now turned
forwardly through a twelfth of a revolution, by the fully pushing home of a pusher
rod; the twelfth of a revolution thus given to the quantity wheel, moves backwardly
the blocking arm also to a twelfth of a rotation, which is now considerably out of the
range of the finger of the worin stalk.
The worin wheel being in gear with the worm of the stalk, it is prevented from
turning, when the quantity wheel is moved, so that as the stalk of the drum is now
free, the meter can work and give out determinate cubic feet of gas, equivalent to the
distance which the blocking stop has to move forward.
Thus, the turning of the drum, by the pressure of the gas, whose volume it measures
communicates motion through the worm, to the worm wheel, and being connected
to the quantity wheel, by the clutch, the axis and other cognate parts, move slowly
back together, and bring the blocking arm into the path of the finger of the stalk,
on a determinate quantity, (or a coin's worth of gas) having been delivered and
consumed, thereby stopping the meter.
It will be thus observed, that the stopping of the meter is performed by the rotating
back of a block, which prevents the meter drum turning, after a coin's worth has been
consumed.
After releasing the pusher rod, which was done immediately the coin fell, the
parts resume their normal positions by the spring.
The vertical shoot I propose to make of a wave or zig-zag shaped channel, of a little
greater than the size and breadth of a coin. Or the said shoot may be made to take
a zig-zag course, with shoulders or overhanging corners, shelves, or the like, to
prevent fraud.
The finger, which moves with the blocking arm, and parts with it, indicates in
front of the dial the quantity of gas to be consumed.
Dated this 20th day of December 1889.
COMPLETE SPECIFICATION.
Improvements in or Additions to Coin-freed Gas or Liquid
Meters.
I, ROWLAND WILLIAM BROWNHILL, of Lozells Road, Aston, near the City of
Birmingham, 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 a prepayment attachment meter, that is to say, an apparatus
for supplying predetermined quantities of gas or liquid, in exchange for coin or

page_text: equivalent, which invention is an improvement upon two several Letters Patent
granted to me, and respectively bearing date, the 13th day of May 1887 No. 7012,
and May 2nd 1888 No. 6537.
I will first described my invention in connection with a gas meter.
The gas meter is of the ordinary kind, and the gas passing therethrough, is
regulated by the drum of the meter, which is driven by the pressure of the gas,
whose volume it measures.
The chambers of the drum, are of known capacity, and the revolutions of it, are
conveyed through the intervention of trains of wheel-work, to a wormed stem or stalk
which is in gear with a free rotating wormed wheel, which is mounted upon an
axis, working within bearings, or bracket bearings, carried by the framing of the
appliance.
Made fast upon this said axis, and located at the back of the said worm wheel, is
a quantity wheel, with ratchet teeth cut upon its periphery, and also made fast upon
the said axis, and located in front of the said worm wheel, is a blocking arm, which
moves with the axis and quantity wheel, and forms a block, for stopping the rotation
of the drum.
Mounted at the back of, and in the same axial line as the wheels and arm aforesaid,
is a double armned lever, connected and jointed respectively to a coin lever, and a
pusher, by means of which latter, the mechanisin of the attachment, is worked.
Figure of the accompanying drawings, represents in front elevation, (with the front
plate of the casing removed,) a prepayinent gas meter attachment, constructed and
arranged according to my present invention. The said view, represents the parts of the
mechanism constituting the attachment, in the positions which they normally assume,
prior to a coin being dropped upon the coin lever, or before a coin reaches the bottom
of the coin slot. It also exemplifies how the coin lever, or the mechanism of the
attachment, is prevented from being worked, by the fully or partially pushing down
of the pusher rod, to cheat or defraud the meter.
A coin is shown in the act of dropping down the coin slit, and pushing outwardly
a fraud prevention arm, which is hung and jointed to a supporting bracket.
It may be here observed, that the attachinent both indicates the number of coins
introduced, and also the quantity of gas to be consumed.
Figure 2 represents a like view to that of Figure 1, but with the graduated dial
and indicating finger, removed, and the coin, which has been dropped down the coin
slit, resting upon the coin lever, counterpoised by a weight. It also shows a quantity
wheel, and a toothed wheel, the latter with wormed teeth upon its periphery, which
engage with the worm of an upright spindle or stalk, of the drum of the meter, and
it further shows the stop position of the stop arm, which prevents the rotation of the
drun spindle, until the said arın may have been removed, through the influence of a
dropped coin, and the pressing of the pusher, when the coin is resting upon the
coin lever.
The fraud prevention arm, is shown hanging in its stop position, that is, in a
position which will prevent a coin from being withdrawn, if it is let down, or lowered
by a string or thread.
The coin lever, in this view, is shown slightly tilted, by the weight of a coin coming
upon one end of it, and a stud on the inner face, near the coin end, which is forked,
coming against a lip, of a cam shaped projection, which yields in obedience to
pressure of the pusher rod exerted, and allows a tooth, on the underside of the said
coin lever, to take and be retained within the teeth of the ratchet wheel, so that the
fully pushing home of the pusher rod, gives a curvilinear or crawl-like traverse to the
said lever, takes the ratchet toothed wheel, which is a quantity wheel, round to
the extent of a twelfth of a revolution, and removes the coin end of the lever from
under the coin, which is now allowed to fall into a box or receptacle, placed to
receive it.
Figure 3 represents a like view to that of Figure 2, with the 'coin lever shown
at the end of its traverse as aforesaid, and with its tooth, taking into the ratchet
teeth of the quantity wheel, and held there by the stud of the lever as aforesaid,

page_text: coming under the guide, which is struck from the centre of the main axis, upon which
the quantity wheel, and siop arm, are made fast. It also shows the position of an
auxiliary stop arm, which falls by gravity on the fully pushing home of the pusher.
rod, and which is again raised, when the said rod assumes its normal position, as in
Figures 1 and 2.
I wish it to be observed, that unless some such means as an auxiliary stop, are
employed, the drum axis would rotate, if continued pressure was applied to the
pusher.
5
Figure 4 represents a part view of the attachment, showing the coin lever in the
act of returning to its normal position, by its stud wiping over the top side of the cam- 1
like projection, which forms both a stop for preventing its traverse, until a coin has
been introduced, a guide for keeping its tooth in the teeth of the quantity wheel, and.
an inclined plane, for taking its tooth from out of the quantity wheel, and returning it
to its former position.
.
.
Figure 5 represents a front view of a part of the attachment, showing a limiting 1
lever, actuated by a stud on the quantity wheel, which limits the maximum number
of coins that can be introduced. Thus the stud is placed a little in advance of the
finger f, so that after the introduction of nine coins, the stud presents itself to the
lever, and thereby closes the entrance to the coin slot, which has an inverted mouth or
entrance.
2
Figure 6 represents a transverse section, upon the dotted lines A B Figure 1,
looking from right to left, and with the drum axis broken away.
Figure 7 represents a horizontal or transverse section, on the dotted lines CD, .
Figure 2.
Figure 8 represents another horizontal section of the said attachment, on the dotted 2
lines EF of the said Figure 2:
Figure 9 shows the money receptacle part of the casing, with its seal.
Figure 10 is a front view of Figure 9, showing more clearly, and in front elevation; .
the said seal! .
Figure 11 represents a side elevation of the coin lever; separately.
Figare 12; a plan or edge view of the same..
Figure 13 is a front view of the cam shaped projection; Figure 14 a plan of
the-same.
Figure 15 represents the operating lever, and Figure 16 a plan of it.:
a is the attachinent 'casing, mounted at the top of the meter b, and above the
indicator mechanism of the said meter. c is an axis or arbor, directed transversely
to the said casing, and having made fast upon it, a quantity wheel d, a stop arm e, -
and the finger f, which all rotate together, or in common one with each other.
י
3
This axis or 'arbor, works within bearings, a, a³, suitably mounted within the
interior of the casing, and adapted to carry the principal mechanism of the 4
attachment.
"
Working loosely upon the said axis, and located at the back of the quantity wheel,
is an operating lever, or beli crank lever g, with long and short arına g³, g³; to near
the end of the former 92, the lower end of a pusher rod h², of a pusher h, is
jointedly connected, and which' pusher rod, works through the top of the casing.
The short arın g³, of the operating lever, carries; and is jointedly connected to,
a coin lever i, which reciprocates in a curvilinear manner, from left to right, and from -
right to left, by the depression and reaction of the pusher. This lever, which is
counterpoised by a weight 12, has a tooth i³, upon its underside, which is located above
the periphery of the quantity wheel, and is adapted to take within its ratchet teeth, and
be kept there, by the traverse of a side stud 2, under the guide ³, of a standing out.
cam-shaped projection j, secured to the side of the casing, by a bracket ³, and provided
with a lip, at its front side, and a stop 1, above it, and immediately at the back of a
curved top side, over which the said stud 4, backwardly rolls or wipes, on the said
lever making its return movement, after the fulfilling of its office of taking the quantity
wheel round to a twelfth of a revolution for each coin deposited within the casing, or
made·to rest upon its tail end, which is forked and directed upwardly, and is marked i³. .
•

page_text: The ends of the branches of the forks, have supplementary fork formations **, with
inclined sides 17, between which, the lower edge of a coin k comes and rests, after
falling down the conducting channel, of the throat 12, of the coin slot l, which has
hanging within and crossing it, the hooked end m³, of a fraud prevention arm. m,
swinging and jointed at m³, as a centre, so that the said arm depends, and its hooked
end takes across the channel, by its own weight, but is so hung and weighted, that the
gravitating effect of a coin, (see Figure 1) removes by pressure, the said hooked
end from, out of the path of the channel, until the said coin has passed it, when
the arm by its own. weight, falls again into its blocking position, as represented in
Figure 2.
The mouth of the coin slit, is inverted, and marked ¹, so that coins are pushed
upwards, in introducing them into the attachment. The walls of the conducting
channel of the coin slot, are pierced, wherethrough the forked branches of the tail
part, extend into the path of the channel, in manner for the coins to drop upon..it, .
and to tilt the same to a slight angle, in order to take the stud 2, from out of the range
of the stop j³, of the projection j, which slightly yields in obedience to the pressure.
exerted by the lever, when its stud comes upon the tip of the lip jt. .
Thus, a coin coming upon the tail end of the coin lever, and dropped down the coin
slot, tilts the said lever in the direction of the arrow upon its joint centre, to an extent
that the stud of it, is reinoved from the shoulder j, as in Figure 2, and when at the
tip of the lip, the pressure of the pushers, causes the projection j, to slightly yield,
and allow the stud 4, to pass it, and take the tooth, into engagement with the teeth of
the quantity wheel d, and at the same time, keep the said tooth within the teeth of.
the said wheel, by the stud it, travelling under and against the curved guide j, on the
forward traverse of the lever, which in its forward movement, causes a stud is, on the
counterpoised end 2, to come upon and compress a spring g'; of the bell-crank operating
lever g, for the purpose of taking back the said lever to its normal position,. as.. in.
Figure 1, after its backward movement, which is performed by the said stud i, rolling
back, or wiping over, the curved top je...
Should the pusher be operated, without a coin having been introduced, then the
result is, that the coin lever is blocked by its stud as aforesaid, coming before the
shoulder, of the standingout block-j; and further, should the said pusher.be:
successively depressed to a 'short distance; so as to cause the coin lever to try to take
the teeth of the quantity wheel one at a time, this is frustrated by the inclined forma--
tion of the ends of the branches of the forked rear part, drawing the coin forward,
or against the inner sides of the conducting channel, so that the coin forms a block,.
and prevents the coin lever being traversed, even to the extent of a single or half
tooth of the quantity wheel.
The stop arm'e, which is as aforesaid, fast upon the axis of the quantity wheel, is for
the purpose of blocking the drum axis, after the meter has. supplied gas in-volume, .
equivalent to the value of a coin or coins deposited. .
Thus, the movement of the quantity wheel to the extent of one pennyworth, and å
twelfth of a revolution; takes the blocking arm'away from the radial arms n², of a drum.
axis, which has about its middle, a worm ; and is supported at top, by.a.bracket n*,
and at bottom bja carrier n³, which carries a toothed wheel, adapted to intergear-with
other toothed wheels, in connection with the index or indicating mechanism-of the
meter.
The radial arms n², are four in number; although I do not limit.myself to any
number, without militating against the purpose for which they are applied..
When the blocking arm. is out of the path of the ends of the radial arms n³, then
the meter drum rotates, and so also does its spindle, pro-rata with the quantity of gas..
been consumed. .
As a further means for preventing.fraud, by the holding down of the pusher, and.
making.a single coin do duty for an unlimited quantity of gas, I arrange at the back'
of the operating lever, an auxiliary stop o, jointed at o², and freely hung from the outer
arm of the operating lever, at o³; so that the said auxiliary stop is picked up, on the
said arm making.an ascending angular movement, but falls on it making a descending,

page_text: angular movement, hence the pushing down or holding of the pusher, allows the
auxiliary stop o, to fall, and cause its blocking part of, to come within the range of the
arms n² of the drum axis n, whereby the said drum axis is stopped, until the pusher
has ascended or taken its normal position with the other parts, by the reaction
spring p, which was elongated by the subsequent downward or pushing moveinent.
q is a toothed wheel, free or turning on the axis c, and having interposed between it
and the quantity wheel d, a spring sheet metal clutch ", which creates sufficient friction
between the said wheels for them to be carried backwardly together, on the recedance
of the parts, consequent upon the rotation of the drum axis pro-rata with the consump-
tion of gas, hence it is that the whole of the parts carried upon the axis or arbor c,
are taken back into their original positions, and with the blocking arın standing in the
path of the arms of the drum axis, so as to stop the druin from rotating.
The quantity wheel d, has a stud d', situated a little in advance of the finger f(see
Figure 5) of it; & is the limiting lever, consisting of arms s¹, 2, with turned end 8³,
and jointed at st; so that after the quantity wheel has been moved forward to the
extent of three-fourths of a revolution, the stop d¹, comes against the arm 8¹, raising
the same, and taking the end 83, of the other arms, in front of the entrance, or across
the throat, of the coin slot, thereby preventing any more coins being introduced
within the attachment, than what gas can be supplied for.
In lieu of the limiting arm 8, and stop d³, the quantity wheel may be unprovided
with teeth for about the last quarter of its revolution; so that gas cannot be supplied
for more than a definite number of coins, to wit, nine, corresponding to about three-
quarters of the periphery of the quantity wheel provided with teeth.
The lock of the coin receptacle or drawer is sealed by a paper disc, or the like,
coming between the key-hole and a hole in the casing.
a is the coin receptacle, as the lock, a the seal, and a' a hole in the walls of the
receptacle, in front of the keyhole.
Assuming that the whole of the parts are in their normal positions, before the intro-
duction of a coin, with the auxiliary stop lifted, and the stop arm in its blocking
position, and assuming no coin to be placed in the attachment, or profered in
exchange for gas, then the application of pressure to the pusher, slightly moves the
operating lever g, and gives a slight forward traverse to the coin lever i, which is
blocked by its stud abutting against the shoulder, of the standing out cam piece j.
Besides the said lever having a slight traverse, it also has a small tilt imparted to it,
which makes the ends of the branches of the forked rear part rise. Assuming that
the parts are again in their normal positions, the passing of a coin down the slot 6, and
the resting of the same upon the forked ends, of the lever i, causes the said lever to
slightly tilt, (see Figure 2) and lower the said end upon which the coin rests, which
thus takes the stud 4, from the shoulder jo, to the tip of the lip 4, of the standing out
cam-shaped piece 7, and against which it bears. By now applying pressure to the
pusher, the operating lever g, is turned from left to right, its arın g², lowered, which
thereby allows the auxiliary stop o, by its own weight, to fall and come within the path
of the arms n², of the drum axis n, thereby blocking the same, and preventing the
rotation of the drum, and the passing of gas.
The angular movement made by the arm g³, of the operating lever, consequent upon
the movement of its other arm, presses the coin lever i, from left to right, and by the
pressure of its stud 2+, upon the rounded end of the lip it, the cam-shaped standing-
out piece j, is caused to yield, and allow the said stud to pass it, and take the tooth of
the lever ³, into engagement with the teeth of the quantity wheel d, and is kept there
by the said stud , coming upon the underside of the curved part 2, of the said
standing-out piece j; so that the combined pressure and movement of the pusher,
further turns the operating lever, and traverses forward the coin lever, distends the
spring p, and as the tooth 3, is in engagement with the teeth of the quantity wheel,
the said quantity wheel is moved forward to the extent of one-twelfth of a revolution,

page_text: on the fully pushing home of the pusher, and as the quantity wheel is fast upon the
axis c, the stop arm e, is moved through a corresponding distance as the wheel d, and
without the range of the arins n², of the meter drum axis.
The toothed wheel q, and spring clutch r, being free upon the axis c, they remain
quiescent.
Now that an amount of gas has been apportioned out, equal to the value of the
coin tendered, the pusher is released, when the coiled spring p, which is now under
tension, takes the parts back to their normal positions, causing the stud it, to traverse
rearwardly over the back of the standing-out projection j, and come in front of the
shoulder, by the stud 28, being lifted by the spring g', of the lever g, which having
ascended, takes the auxiliary stop o, from out of the path of, or before the arins n², of
the drum axis n, when the said drum axis, and its drum rotate, pro-rata with the
consumption of gas.
The drum axis worm n³, by its rotation, turns backwardly the wheel q, and as the
said wheel q, is made temporarily fast to the quantity wheel d, axis c, and cognate
parts, carried by it, through the intervention of the clutch, the whole of the parts
carried upon the said axis, including the finger f, move backwardly together, until
the coin's value of gas has been consumed, when the stop arm e, is presented to the
arms n³, of the drum axis, whereby the drum is stopped by its interposition.
The dropping of a second and further coins up to nine, and the operation of the
pusher for each coin deposited, causes the quantity wheel, arin e, and finger f, to pass
through nine successive parts of a revolution, which brings the stud d', on the said
quantity wheel in a position (see Figure 5) that its further movement causes the
limiting lever 8, to be turned upwardly from the dotted lines into the full lines, and so
come across the coin slot, and prevent further coins being introduced.
It is to be understood, that the mechanism of the attachment can be adapted to
receive any number of coins, as may be desired, and to deliver an equivalent amount
of gas therefor.
The attachment as shown, applies to a wet gas meter, but is equally applicable to a
dry one.
The mouth of the coin slot is made inverted or depending, for preventing fraud by
the introduction of wires down the throat of the said slot.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First In a gas meter prepayment attachment, a counterpoised and jointed coin
lever, with a tooth upon its underside, and a stud upon the face of its tail end, and
with the said tail end having branches, fashioned as described and set forth.
Secondly-In a gas meter prepayment attachment, keeping the coin lever in
tooth, blocking the same, and taking it out of tooth, by a cam shaped part or
projection j,,, j, j, as set forth.
Thirdly: In a gas meter prepayment attachment, making the entrance or mouth of
the coin slot, inverted, or depending, for preventing fraud, by the insertion of wire,
or instrument, down the said slot, substantially as described and set forth.
=-
Fourthly In a gas meter prepayment attachment, preventing fraud, or the with-
drawal of a coin, after the same has been passed into the coin slot, by the end of an
arm, or the end of a bar m, automatically crossing the said slot, as set forth.
Fifthly: In a gas meter prepayment attachment, the employment in connection with
a meter drum, or meter drum axis, with arms, or radial arms, of a blocking arm e,
substantially as, and for the purpose, as described and set forth.
Sixthly In a gas meter prepayment attachment, an auxiliary stop o, for blocking
the drum or drum axis of a meter, prior to the removal of the primary blocking arm,
and the rising of the pusher to its normal position, for the purpose as described and
set forth.
Seventhly: In a gas meter prepayment attachment, the combination with a stop

page_text: arın e, of the worm wheel q, quantity wheel d, and clutch r, and axis, as described
and set forth.
Eighthly: In a gas ineter prepayment attachinent, the combination with the pusher
of lever g, and cognate parts carried upon the axis c, substantially as described and
set forth.
Ninthly: In a gas meter prepayment attachment, the general construction and
arrangement of the parts of the same, without the fraud prevention means, as.
described and set forth.
Tenthly: In a gas meter prepayment attachment, the general construction, and
arrangement of the parts of the same, with the fraud prevention means, as described
and set forth.
Eleventhly: In a gas meter prepayment attachment, the means for preventing
fraud, as described and set forth.
Twelfthly: In a gas meter prepayment attachment, the combination with the
prepayinent attachment mechanism, (with or without the fraud prevention means,) as
set forth, of a device for preventing inore than a fixed number of coins being passed
within the slot, substantially as set forth.
Thirteenthly: The general construction and arrangement of the whole of the parts
of the attachment, for either gas or liquid meters, as described and set forth.
Dated this 20th day of October 1890.
ROWLAND WILLIAM BROWNHILL.
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant.