IMPROVEMENTS IN THE CONSTRUCTION OF DRY GAS METERS AND IN THE MEANS OB APPARATUS EMPLOYED THEREIN
Year: 1863

page_text: LETTERS PATENT to George Rait, of Canal Bridge, Kingsland Road,
Managing Director of "The Gas Meter Company," and John Wins-
borrow, of 23, Castle Terrace, Pownal Road, Dalston, Foreman of the
said Company, both in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN THE CONSTRUCTION OF DRY GAS METERS AND IN THE MEANS
OB APPARATUS EMPLOYED THEREIN."
Sealed the 13th May 1864, and dated the 20th November 1868.
PROVISIONAL SPECIFICATION left by the said George Rait and John
Winsborrow at the Office of the Commissioners of, Patents, with their
Petition, on the 20th November 1863.
We, GEORGE RAIT, of Canal Bridge, Kingsland Road, Managing Director of
"The Gas Meter Company," and JOHN WINSBORROW, of 23, Castle Terrace,
Pownal Road, Dalston, Foreman of the said Company, both in the County of
Middlesex, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE CONSTRUCTION OF DRY GAS METERS AND IN THE MEANS OR APPARATUS
EMPLOYED THEREIN," to be as follows:-
The object of the Invention is to facilitate the manufacture of dry gas
meters by simplifying the means employed in their construction, and at the
same time to obtain uniformity and accuracy in their parts, and, as a result,
better finished meters. The various parts of which dry gas meters are
composed are mostly formed by hand to the required shapes for soldering

page_text: together, and, as a consequence, considerable difference exists between gas
meters of the same size constructed even under the same superintendence.
In carrying out the improvements we obtain the required forms to the
separate parts by mechanical means, by which identity in the appearance and
accuracy in form of any number of those for the same size of meter is secured.
For this purpose the tin plates to form the various parts are first cut by
guaged cutters to the desired sizes. Those intended for the front, top, and
back plates are stamped or pressed in dies adapted to effect the desired rise or
bulge required in them and in the top part by the same operation, the turning
up of the edges is also effected. The edges of the backs and fronts are thrown
up at the same or a like operation at right angles or thereabout to enable them
to receive the parts to be united with them, and, at the same time, a pro-
jecting bead is produced across to give additional strength to such plates in
lieu of an enclosed wire. The bottom plates are formed to the figures desired
to be obtained. The sides, bottom, and valve plates are brought uniformly to
the desired form by dies, the lower one of which is formed by a bed plate with
longitudinal and transverse grooves adapted to receive the heads or nuts of
screws by which other side and end bars are held, so as to be capable of ad-
justment to different sizes of plates. On these bars are applied with capability
of adjustment other bars acting as guages to receive and so as to adjust the
position of each sheet of metal to be operated, whilst the upper die or forcer
in its descent forces it down within the first bars. The metal for the inlet and
the outlet side tubes, having been cut to the desired width, is cut to somewhat
of an egg shape at one end by a pair of cutters formed to pass one through the
other and having guages. When thus cut the metal is placed between and
acted upon by dies, which, at one operation, bring such metal not only into the
ordinary somewhat half round section, but with the one end drawn, so that
when jointed on to the body of the meter, that end will be closed without
the necessity for the application of an extra piece of metal for the purpose, as
is the common practice. The holes in the valve plate for the axes communi
cating between the diaphragms and the valves are accurately obtained by
punches acting together and in the desired relative positions, whilst the plates
are held between adjustable guages, and the holes thus obtained are then used
as guides by being passed over pins, which, with other plates which are adjust
able, act as guages to hold the valve plate in position, whilst cutting dies cu
out the places for the valves and the hole for the inlet of gas to the ga
chamber. The passages by which the gas is conducted from the under side o
the valves to the outlet pipe are each stamped into form from single plates
whilst the inside chamber passage is cut and has its edges chamfered at th

page_text: same operation by the under surface of the upper die near its cutting edge,
being bevilled or inclined upwards towards the cutting edge.
We give
strength or stiffness to the arms from the axes worked by the diaphragms by
stamping them of a form somewhat hollow, and with ribs and turned edges
and a hollow to each for its axis. Clearing plates are applied to the various
dies. We cut the metal for the diaphragm disc rings and turn the edges
thereof and bend them into a ring shape by an apparatus having guages to
regulate the width of metal to be cut; also a pair of cutting rollers to effect
the cut; also a pair of rollers, the surfaces of which are formed and act
together to effect the desired turning of the edges, and also another roller to
produce the bending into a ring form. The parts of the apparatus being
adjustable to different widths and sizes.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Rait and John Winsborrow, in the Great Seal Patent
Office on the 20th May 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
RAIT, of Canal Bridge, Kingsland Road, Managing Director of "The Gas
Meter Company," and JOHN WINSBORROW, of 23, Castle Terrace, Pownal
Road, Dalston, Foreman of the said Company, both in the County of Middle-
sex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of November, in the year of our
Lord One thousand eight hundred and sixty-three, in the twenty-seventh
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said George Rait and John Winsborrow, Her special
licence that we, the said George Rait and John Winsborrow, our executors,
administrators, and assigns, or such others as we, the said George Rait and
John Winsborrow, our executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF DRY GAS METERS AND IN THE MEANS OR APPARATUS EM-
PLOYED THEREIN," upon the condition (amongst others) that we, the said
George Rait and John Winsborrow, our executors or administrators, by an
nstrument in writing under our or their hands and seals, or under the hand

page_text: and seal of one of us or them, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent.
..
☐ NOW KNOW YE, that I, the said John Winsborrow, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:—
The object of the Invention is to facilitate the manufacture of dry gas
meters by simplifying the means employed in their construction, and at the
same time to obtain uniformity and accuracy in their parts, and, as a result,
better finished meters. The various parts of which dry gas meters are
composed are mostly formed by hand to the required shapes for soldering
together, and as a consequence considerable difference exists between gas
meters of the same size constructed even under the same superintendence.
In carrying out the improvements we obtain the required forms to the
separate parts by mechanical means, by which identity in the appearance and
accuracy in form of any number of those for the same size of meter is
secured. For this purpose the tin plates to form the various parts are first
cut by guaged cutters to the desired sizes. Those intended for the front, top,
and back plates are stamped or pressed in dies adapted to effect the desired
rise or bulge required in them, and in forming the top part by the same
operation of effecting the desired rise or bulge, the turning up of the edges
is also effected. The edges of the backs and fronts are thrown up at the
same or a like operation at right angles, or thereabout, to enable them to
receive the parts to be united with them, and at the same time a projecting
bead is produced across to give additional strength to such plates in lieu of
an enclosed wire. The bottom plates are formed to the figures desired to be
obtained. The side, bottom, and valve plates are brought uniformly to the
desired form by dies, the lower one of which is formed by a bed plate with
longitudinal and transverse grooves adapted to receive the heads or nuts of
screws, by which other side and end bars are held, so as to be capable of
adjustment to different sizes of plates. On these bars are applied, with
capability of adjustment, other bars acting as guages to receive and so as to
adjust the position of each sheet of metal to be operated upon, whilst the
upper die or forcer in its descent forces it down within the first bars. The
metal for the inlet and the outlet side tubes, having been cut to the desired width,
is cut to somewhat of an egg-shape at one end by a pair of cutters formed to

page_text: pass one through the other and having guages. When thus cut the metal is
placed between and acted upon by dies, which at one operation bring such
metal not only into the ordinary somewhat half-round section, but with the
one end drawn, so that when jointed on the body of the meter that end will
be closed without the necessity for the application of an extra piece of metal
for the purpose, as is the common practice. The holes in the valve plate for
the axes communicating between the diaphragms and the valves are accurately
obtained by punches acting together, and in the desired relative positions,
whilst the plates are held between adjustable guages and the holes thus
obtained are then used as guides by being passed over pins, which, with other
plates which are adjustable, act as guages to hold the valve plate in position,
whilst cutting dies cut ont the places for the valves and the hole for the inlet
of gas to the gas chamber. The passages by which the gas is conducted from
the under side of the valves to the outlet pipe are each stamped into form from
single plates, whilst the inside chamber passage is cut and has its edges cham-
fered at the same operation by the under surface of the upper die near its
cutting edge being bevilled or inclined upwards towards the cutting edge.
We give strength or stiffness to the arms from the axes worked by the dia-
phragms by stamping them of a form somewhat hollow, and with ribs and
turned edges and a hollow to each for its axis. Clearing plates are applied to
the various dies. We cut the metal for the diaphragm disc rings and turn the
edges thereof, and bend them into a ring-shape by an apparatus having guages
to regulate the width of metal to be cut; also a pair of cutting rollers to effect
the cut; also a pair of rollers, the surfaces of which are formed and act
together to effect the desired turning of the edges; and also another roller to
produce the bending into a ring form, the parts of the apparatus being
adjustable to different widths and sizes.
But that the Invention may be better understood, we will by the aid of the
accompanying Drawings proceed more fully to describe the same.
DESCRIPTION OF THE DRAWINGS.
The metal to form the top, bottom, front, back valve and side plates of
a dry gas meter is cut to the sizes desired by guaged cutters.
Those plates
which are to form the front and back of a meter are also stamped or pressed
in suitable dies adapted to produce the desired rise or bulge to them. One of
such plates, of a form such as we employ for one size of meter, is shewn to a
scale of half the real size at Figures 1 and 2. Other of the Figures of the
Drawings are shewn to the same scale; Figure 1 being a plan view, and
Figure 2a sectional view of the same. The extent or figure of the bulging

page_text: may, however, be varied, and we would here remark that thus far we are
aware there is no novelty in the means referred to. But, according to one
part of our improvements, the metal to be cut and stamped to a desired bulge
or rise is then further acted upon by stamping, in order that the edges a, a,
may be turned up thereon, and that a sort of bead or reed a¹ may be produced
to it, such as indicated by Figures 3, 4, and 5, where a plan and two sectional
views of a plate, which has been thus further acted upon, is shewn separately.
This further operation upon a plate is effected by placing it in a bottom die,
such as shewn by plan view, Figure 6, and sectional views of the same,
Figures 7 and 8, and there acting upon such plate by means of an upper die
or forcer, such as indicated by Figures 9, 10, and 11, where Figure 9 repre-
sents an under side or face view of this upper die or forcer, and Figures 10
and 11 sections of it. These and the various dies, hereafter referred to, are
to be applied to suitable presses or drop hammers, by which the correct action
of one of them in relation to the other may be secured, as is well understood.
The plate to be acted upon by these dies will be placed with its edges between
the projections a², a², of the bottom die, and as the upper die or forcer comes
down thereon it will force the plate between the side surfaces a³, a³, by which
the turning up of the edges a, a, will be obtained, and the part a' of the
upper die, acting with the part a³ of the lower die, will effect the reeding or
bead a¹. The plates to form the top of the meter having been cut, as stated,
to the desired form, one of which is shewn at Figures 12 and 18, are then
separately placed in a die, such as shewn by plan view, Figure 14, and two
sectional views of the same, Figures 15 and 16, and they are there acted upon
by an upper die or forcer; an under or face view and two sectional views of
which are indicated by Figures 17, 18, and 19, by which the plate at one
operation will not only have any desired rise or bulge b (Figures 20 and 21)
produced to it, but it will also at the same time have the edges b' turned up
to facilitate the connection thereof by soldering to the other parts of the
meter.
Figures 22 and 23 shew two views of a plate of metal cut by guaged
cutters as above referred to in order to its being stamped or pressed at the
edges into the form desired for a bottom plate; Figure 24, shews a plan view,
and Figure 25 an edge view; and Figures 26 and 27, two sections taken
transversely one to the other of the lower die; Figure 28 is a face view, and
Figures 29 and 30 represent an edge view and a sectional view of the upper
die or forcer by which this operation is effected; and Figures 31, 32, and 38
shew a plan view and two sectional views of one of these bottom plates
complete after it has been operated upon by these dies. This bottom die is

page_text: formed of several parts, c being the bottom or bed plate thereof, in which are
formed the longitudinal and transverse grooves c', c', adapted to receive and
retain the tapped plates or nuts for the screw c³, by which the side and end
bars or plates c', c, c, c', are retained in the relative positions desired on the
plate c. On these bars or plates c', c³, are applied other plates or bars c, c³,
c7, c, with capability of adjustment thereon in relation to each other, and to
the bars c, c³, by means of set screws c8, c³, as clearly shewn by the Drawings.
These bars or plates c', c³, c, c', are applied with capability of adjustment on
the plate c in order to this die being used at different times to operate upon
sheets of metal of different sizes to form plates for different sizes of meters.
For larger or smaller sizes of plates other bars or plates and c, will have to
be substituted for those shewn in these Figures, and of length adapted to the
width of the plates for the time to be operated upon. Another top plate or
forcer will also have to be substituted corresponding in size with the size
of the plates for the time to be acted upon. Each plate to be acted
upon by these dies is placed so as to rest on the bars c, c, with its edges
against the inner edges of the guages c, c, when the action of the forcer in
coming down thereon is to force such plate down within the bars c*, c³, when
its edges will be turned up as indicated by Figures 31, 32, and 33. In order
to facilitate the freeing of these plates from the lower die after being operated
upon, we apply the lifter clo, somewhat of the form of the letter H, and it
is supported by the small pillars c" from another frame c, which is sup-
ported on one end of the lever c¹³, which is capable of turning on the axis c",
and by the depression of the other end of this lever by means of a treddle or
otherwise, the lifter c will be raised to raise a plate which may have been
forced between the plates c', c. c¹s are set screws to aid in retaining the
plates c, c, in position. The valve plates are in like manner turned up at
their edges by the dies employed to act on the bottom plates. The plates for
the sides of the meter, having been cut to the required size by guaged cutters
as above referred to, one of which is shewn by Figures 34 and 35, are placed
in the lower die shewn by Figure 36, where it is then acted upon by a die or
forcer, such as indicated by the face or plan and side views of it, Figures
37, 38, and 39. The parts of the die shewn by plan view at Figure 36 are,
except as to the length of the bars c, c', and c', c', in all respects similar to
that described in respect of Figures 24, 25, 26, and 27, and the description
there given applies to this Figure 86, and the same letters indicate corre-
sponding parts.
Figures 40, 41, and 42 shew a plan view and two sections of one of the
side plates after being operated upon by the dies last referred to in order to

page_text: the turning up thereon of the edges b, b. Figure 43 shows full size a plate
of metal cut by suitable guaged cutters in order to its being used to form one
of the inlet or outlet side tubes of the meter; a piece of metal thus formed is
placed in a lower die e, such as shewn in section at Figure 44 and in plan at
Figure 45, with one of its ends resting against the part f' of the upper die f
and between the guage pieces e, e', of the lower die. The upper dief is
shewn partly in section also by Figure 44, and by an under side or face view
of it at Figure 46, and a front view of it at Figure 47. The position of a
piece of plate in these dies before being acted upon by them is indicated by
red dotted lines, and the form of the two dies is as clearly shewn by the
Drawings, to cut that end of the plate into the form indicated by Figure 48,
where the end g thereof represents that which has been thus operated upon
by these dies. In this case the dies will be applied to a suitable press. The
plate thus cut to form is then placed as indicated by red lines between the
guides e, e², on a lower die such as shown by a plan view Figure 49, end
view Figure 50, and longitudinal section Figure 51, where it is acted upon by
the top die or forcer, an under side or face view of which is shewn by
Figure 52 and a side view of it at Figure 53, when the plate will be brought
into the form indicated. by plan, side, and end views, Figures 54, 55, and 56,
by which, as will be seen, the plate is brought into form, the section of which is
somewhat of a half round, but its end g is closed, so that when such a plate is
placed against the side of the meter there will be no necessity for the appli-
cation of an extra piece of metal to close the lower end of the same, as is the
common practice, and the appearance of the meter at that part will be greatly
improved.
The next part of the improvements relates to means by which accuracy is
obtained in forming the holes for the passage of the axes communicating
between the diaphragms and the valves, as well as in forming the holes for the
valve seats in the valve plates. A plate of metal cut to the proper size is
placed as indicated by red lines in the bottom die, Figure 57, which represents
full size a plan view of the die, and Figures 58 and 59 sections thereof.
The metal to be operated upon is placed in this die with its inner end resting
against the moveable piece h, and its sides resting against the guages i, i, and
when in that position the plate is first acted upon by the upper die j, which is
shewn by front view and face or under side view, at Figures 60 and 61, when the
projections or punches j', j', thereof will in the descent of this die pass through
the valve plate under operation, producing therein the holes k, k, as will be better
seen by a separate view of one of these plates when it has been thus operated
upon at Figure 62. In the rising of this upper die for a fresh operation the

page_text: plate that has been operated upon will be drawn off the punches j', j', in case
it should have a tendency to stick to them by means of the clearing plate 7.
When any number of valve plates desired have been thus operated upon to
form in them the holes k, k, the moveable piece h will be removed from this
lower die, and in place of the upper die ; the die m will be employed to
produce the valve passages n, n, and the passage o, as shewn by Figure 66.
This die m is shown by side view and face or under side view in Figures 63
and 64. The valve plates are now again separately placed as before in the
lower die, except that they are turned end to end, and so that the fixed studs
,, which are supported by a projection is from the lower die, pass into the
holes k, k, produced by the last operation, as indicated by Figure 65, and then
in the descent of the upper die m the projecting cutting surfaces m², m³, and
m² thereof will pass through the valve plate under operation into cor-
respondingly shaped recesses formed in the lower die to produce the valve
holes n, n, and the hole o, for the passage of gas into the meter, as indicated
by Figure 66, by which means the relative position of these holes in the valve
plate will be secured. The red dotted lines ; in Figure 57 indicate the
position of the upper die ; over the lower die, and in like manner the red
dotted lines m in Figure 65 indicate the position of the die m when that is
acting with that lower die. Figure 67 shews, full size, a plan view, and
Figure 68 a section of a lower die, and Figure 69 a side view partly in
section, and Figure 70 an under side or face view of an upper die, by which
metal is cut into the shape shewn separately by Figure 71, for the formation
of the passages for conducting the gas from the under side of the valves to the
outlet pipe. The plate, Figure 71, is then placed, as shewn by red lines, in
another die, a plan view of which is shewn by Figure 72, and a section thereof
by Figure 78, in order that it may there be acted upon by the upper die,
Figure 74, an under side view of which is shewn by Figure 75, when the
metal, Figure 71, will be brought into the shape indicated by Figure 76, for
one of the passages from one of the valves to the outlet. The corresponding
passage from the other valve to the outlet is obtained by placing plates
such as indicated by Figure 71 in the die shewn, full size, by Figures 72 and
73, but with the reverse side of it upwards from that already referred to, as
indicated by the red dotted lines in Figure 72. Figure 77 shews a plan or
face view, and Figure 78 an end view of the lower die, by which metal
forming one part of one of the inside chamber passages is cut, and Figure 79
shews an under side or face view of the upper die acting with the die,
Figures 77 and 78, and Figure 80 shews a plan, Figures 81 and 82 side
views, the latter partly in section, of the upper die, Figure 79. Figure 83

page_text: shews the metal cut to form by these dies, and it will be seen whilst it is thus
cut to shape it has at the same time its edges, r, slightly turned up.
This turning up is effected at the time of cutting by the bevelled form given
to the edges of the upper cutting die. The corresponding plate, Figure 84,
for the other inside chamber passage, is produced in like manner; we have
not, therefore, thought it necessary to shew the dies for it also. The plates,
Figure 83 and 84, are then separately placed in a lower die, shewn by plan
and sectional views, Figures 85 and 86, with the end t' thereof resting against
the guage plate u affixed to this lower die, as shewn by the red and brown
lines in Figure 85, when the descent of the upper die v, Figure 89, with its
inclined surfaces v' acting on the plate t, will cause it to be bent inwards into
the shape indicated by the dotted lines in Figure 86, and separately by
Figures 87 and 88. The plate shewn by Figures 87 and 88 corresponds with
the plate Figure 84. Figure 90 shews an under side view of the upper die or
forcer v, Figure 89. When it is desired to operate upon the plate, Figure 83, the
plate of the lower die, Figure 85, will be simply taken off, turned over, and
refixed on that lower die, and the plates, Figure 83, will be successively
applied as indicated by the brown lines in that Figure 85, and acted upon as
already explained by the upper die .
Figures 91, 92, 93, and 94 shew several views of another part of the inside
chamber passage to be used with that shewn by Figure 83; and Figure 95
shews a plan view of the like portion of the passage to be used with that
shewn by Figures 84, 87, and 88. Both these plates are alike produced by
means of the cutting dies shewn by Figures 96 and 97, and Figures 98
and 99. Figures 96 and 97 represent a plan or face view and section of the
lower die, and Figures 98 and 99 an under side or face view and a side view,
partly in section, of the upper die. Figure 100 shews an edge view and plan
of the form of plate obtained by the action of these dies. A piece of metal of
the form thus obtained, in order to produce the passage or portion of passage
shewn by Figures 91, 92, 93, and 94, is then placed as shewn by red lines on
the die, Figure 101, transverse sections of which are shewn by Figures 102
and 108, where it is acted upon by the upper die w, Figure 104, and under-
side view and a side view, partly in section, taken at right angles to that of
Figure 104, are shown by Figures 105 and 106. When the upper die w
comes down upon the lower die the parts thereof w', w, will act with the parts
y, y', respectively to produce the bending of the parts a¹, x, of the plate x,
Figures 91, 92, 93, and 94, whilst the side surfaces w³, w', of the upper die,
acting with the surfaces y, y³, of the lower die, will simultaneously produce
the bending up of the parts a³, a; y' is a guide plate having a hole through

page_text: it adapted to embrace the opposite sides ** of the plate, Figure 100, in order
to its correct position on the lower die. We have not thought it necessary to
shew the pair of dies for producing the passage, Figure 95, as they will be
similar to those just described, only inclining in the opposite way.
Figure 107 shews, full size, a face view, and Figures 108 and 109 sectional
views, of one of our improved arms from the axis worked by the diaphragm,
by examining which it will be seen that it is formed hollow and with ribs z
and turned edges a¹, as also a hollow or recess 28 at one end for the better
affixing thereof to its axis, by which means strength or stiffness with facility
of fixture is obtained. This form of arm is obtained by acting on the metal,
when cut to the figure desired, by means of the pair of dies, face views of
which are shewn by Figures 110 and 111. Figures 112 and 113 shew two
transverse sections of the lower die, Figure 110, and Figures 114 and 115
shew a side view and a section of the upper die, Figuro 111.
Figure 116 shews, to a scale of half the real size, a front view, and
Figure 117 a plan of apparatus by which, according to our improvements,
metal to form the diaphragm disc rings is cut to the desired width and the
edges thereof are turned in the desired directions, and the whole is bent into
a ring shape. Figure 118 is an end view of parts of this apparatus, shewn by
Figures 116 and 117; Figures 119 and 120 shew sections of the same taken
respectively through the lines 1, 1, and 2, 2, of Figure 117. A piece of
metal, supposed to be under operation, is indicated in these Figures by the
red lines B. It is passed into the apparatus in the direction indicated by the
arrow A, with the inner edge of this plate B resting in the groove of the guide
plate C, when, by its coming between the cutting rollers D, D¹, a strip will be
cut therefrom, and this strip of metal, in its further progress, will be conducted
between the guide plate C and a guide plate C¹ to between the rollers E
and E', by which its edges will have the desired forms given to them, as
shewn, and then, in the further passage of the strip of metal, it will be acted
upon by the roller F to give it a ring form. A ring thus produced, with its
ends connected together, is shewn full size by Figures 121, 122, and 123.
Motion is given to this apparatus in the following manner:-Z is the main
framing of it; G is a winch handle by which the parts are set in motion, this
handle being affixed on one end of the shaft or axis G¹, on the other end of
which is affixed the cutter D; and upon this shaft G is also affixed the
pinion G³, the teeth of which take into the teeth of the pinion G³ affixed on
the shaft G', upon which is also affixed the other cutter D', and by means of
the intermediate wheel H the pinion G³ gives motion to the toothed wheel I

page_text: affixed on the shaft I, upon which is affixed the roller E; and the teeth of
this pinion I take into the teeth of a pinion J affixed on the axis J¹, upon
which is affixed the roller E¹. These toothed wheels are indicated in Figure
116 by blue dotted lines. The roller F turns upon a stud F¹ projecting
from the plate F*, which is supported with capability of adjustment in a 5
bracket affixed to the main framing Z, as shewn.
Having thus described our improvements, and means which we adopt in
carrying the same into effect, we would have it understood that what we
claim is,
First, the adaptation or combination of means for acting upon the front and 1
back plates of dry gas meters to produce the turning up of the edges a and
the reed or bead a', as explained in respect of Figures 3, 4, 5, 6, 7, 8, 9, 10,
and 11.
Secondly, we claim the adaptation or combination of means for producing
the top plates of dry gas meters, as explained in respect of Figures 14, 15, 16, 1
17, 18, 19, 20, and 21.
Thirdly, we claim the adaptation or combination of means for operating
upon bottom valve and side plates of dry gas meters, as explained in respect
of Figures 24, 25, 26, 27, 28, 29, 30, 36, 37, 38, and 39.
Fourthly, we claim the adaptation or combination of means and mode of 2
working for producing the inlet and outlet side tubes of dry gas meters, as
described in respect of Figures 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55,
and 56.
Fifthly, we claim the adaptation or combination of means for producing the
holes for the axes communicating between the diaphragms and the valves and
the valve holes therein for dry gas meters, as described in respect to Figures
57, 58, 59, 60, 61, 63, 64, and 65.
Sixthly, we claim the adaptation or combination of means and mode of
working to produce the passages by which the gas is conducted from the
under side of the valves to the outlet pipes of dry gas meters, as described in 3
respect of Figures 67, 68, 69, 70, 72, 73, 74, 75, and 76.
Seventhly, we claim the adaptation or combination of means for producing
inside chamber passages of dry gas meters, as described in respect of Figures
77, 78, 79, 80, 81, 82, 88, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96,
97, 98, 99, 101, 102, 103, 104, 105, and 106.
8
Eighthly, we claim the method of producing the arms from the axes worked
by the diaphragms of dry gas meters, as described in respect of Figures 107,
108, 109, 110, 111, 112, 113, 114, and 115.

page_text: Ninthly, and lastly, we claim the adaptation or combination of means for
cutting and forming the diaphragm disc rings of dry gas meters, as described
in respect of Figures 116, 117, 118, 119, and 120.
In witness whereof, I, the said John Winsborrow, have hereunto set my
hand and seal, this Twentieth day of May, in the year of our Lord
One thousand eight hundred and sixty-four.
JOHN WINSBORROW. (LS.)