IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF LOOPED OR KNITTED FABRICS
Year: 1870

page_text: LETTERS PATENT to Thomas Coltman, of Leicester, in the County
of Leicester, Mechanist, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF LOOPED OR
KNITTED FABRICS."
Sealed the 5th July 1870, and dated the 7th January 1870.
PROVISIONAL SPECIFICATION left by the said Thomas Coltman at
the Office of the Commissioners of Patents, with his Petition, on
the 7th January 1870.
I, THOMAS COLTMAN, of Leicester, in the County of Leicester,
Mechanist, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE
OF LOOPED OR KNITTED FABRICS," to be as follows:-
These improvements consist in constructing a frame or machine for
the manufacture of ribbed, looped, or knitted fabrics with the following
arrangement and combination of parts:-I employ a bed plate planed

page_text: true on the top and front sides, and it is true on its lower side, where
it is secured to standards. The vertical face of the bed receives a
number of sleys, made by preference of brass, according to the number
of breadths for which the frame or machine is set out. The back of
these sleys lies upon the face of the bed in such position that the frame
or machine needles and needle bits are free to slide in the sleys vertically
in front. These sleys are somewhat thinner at each end, and they
are held firmly to the face of the bed by clamping plates or their
equivalent lying on the thin ends, and screwed to the face of the bed.
The clamping plates are grooved at back to receive sliding pieces which
project at front at their upper end to form holding down pieces which
press upon the top edge of a bar which carries V or otherwise shaped
inclines. This bar is secured on the front of another bar which lies
partly below it, and is cut on its top edge in form reverse of the V or
otherwise shaped inclines. The sliding pieces have studs projecting in
front at their lower ends, which studs slide in.horizontal slots in another
or third bar lying partially below the incline bars; this third bar has
besides the horizontal slots other slots lying at an inclined angle.
Through these inclined slots studs are passed, and they are secured to
he vertical face of the bed so that the lower bar is capable of sliding
upon the studs, by which arrangement the lower bar may be moved to
the left, such movement raising the two upper bars and causing the
work to be made stiff. When the bars are in their lower position, the
work will be made slacker. The lower bar of the three bars carries
studs or picces in or on which the lower incline bar slides. The two
first-named incline bars carry at one end a two-ended bracket provided
with set screws and nuts at each end. capable of adjustment. The
distance between these set screws regulates the distance the carrier
needle bar or bars traverse over and above the length of throw or
traverse of the incline bars, which incline bars are moved to the right
and left alternately as follows:-On the top side of the bed plate are
sleys for the machine needles and needle bits to slide in, being moved.to
and fro horizontally by a bar or bars carrying inclines which operate
them; this bar or bars is or are moved to the right and left by a link or
rod connected with a crank or cam on the back end of a short horizontal
shaft at one end of the machine, and lying at a right angle to the length
of the bed. The machine needle incline bar (or bars) carries a tumbler
driver or equivalent which drops between the ends of the adjustable set.
screws at the end of the frame incline bars, by which means the extra

page_text: traverse of the carrier needle bar above referred to is obtained. The
tumbler driver or equivalent can be raised when a longer traverse of the
carrier needle bar is required by a bell-crank lever lifted by a vertical
rocking lever pressed against it by a stud in a toothed wheel, which has
as many teeth as there are courses of fabric to be made in the length of
cach ribbed top. This toothed wheel is on a short shaft at the end of the
machine, and lies under the horizontal shaft which carries a worm or
other wheel, which drives the toothed wheel carrying the stud operating
the vertical rocking lever. At one end of the machine incline bar is an
axle pin which carries a rocking arc pierced with a slot, in which slides
a stud at the lower end of a vertical bolt which is raised and lowered by
the incline; such bolt will when in its lowest position allow a driver on
the thread carrier bar to pass over it, and when in its highest position it
strikes the driver first on one side. and then on the other, causing
alternate right and left traverse of the carrier bar. The machine incline
bar is provided with a horizontal bar slotted, which operates upon the
incline bars to draw them back to hold the machine needles back when'
the welt is being made. There is a second incline slotted bar on the
front machine incline bar, which operates the front inclines in such
manner that they are set to the front or back to form stiff work or
slack work on the machine needles. The lower horizontal shaft at
one end of the machine is provided with a toothed wheel, which
gears into a second toothed wheel which drives a wheel on the shaft
on which the work is wound. The opposite end of this shaft has a
pattern wheel on it which throws in first onc set of thread carriers and
then another set of carriers. The carrier bars slide in a frame or bearings
working on centres supported by brackets at each end of the machine,'
and elsewhere if the length of the machine requires them. The work
roller or shaft carries as many rollers as there are breadths of work made
across the width of the machine. Each roller is free to revolve round
the shaft, but any amount of pressure may be placed upon each roller
separately by the shaft carrying a clamp at the end of each roller
adjustable by a set screw. The lower horizontal shaft at one end of the
machine carries a worm gearing into a wheel on a vertical shaft having:
a counting dial, by which the number of ribbed tops made by the
machine in a given time is certified..

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Coltman in the Great Seal Patent Office
on the 7th July 1870. .
1
*)
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
COLTMAN, of Leicester, in the County of Leicester, Mechanist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of January, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Coltman, Her special licence,
that I, the said Thomas Coltman, my executors, administrators, and
assigns, or such others as I, the said Thomas Coltman, my 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
MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF LOOPED OR
KNITTED FABRICS," upon the condition (amongst others) that I, the said
Thomas Coltman, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and scals, 'should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same
to be filed in the Great Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
די
: NOW KNOW YE, that I, the said Thomas Coltman, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in
and by 'the following statement thereof, reference being had to the
accompanying Drawings, and to the letters and figures marked thereon,
that is to say -
'
These improvements consist in constructing a frame or machine for
the manufacture of ribbed, looped, or knitted fabrics with the following
arrangement and combination of parts :-I employ a bed plate planed
true on the top and front sides, and it is true on its lower side, where it
is secured to standards. The vertical face of the bed receives a number

page_text: of sleys, made by preference of brass, according to the number of breadths
for which the frame or machine is set out. The back of these sleys
lies upon the face of the bed in such position that the, frame needles
and needle bits are free to slide in the sleys vertically in front. These
sleys are somewhat thinner at each end, and they are held firmly to the
face of the bed by clamping plates (or their equivalent) lying on the
thin ends and secured to the face of the bed. The clamping plates are
grooved at back to receive sliding pieces which project at the front at
their upper end to form holding down pieces, which press upon the top.
edge of a bar which carries V or otherwise shaped inclines.. This bar
is secured on the front of another bar which lies partly below it, and is
cut on its top edge in form reverse of the V or otherwise shaped inclines.
The sliding pieces have studs projecting in front of their lower ends,,
which studs slide in horizontal slots in another or third bar lying
partially below the incline bars before mentioned. This third. bar has
besides the horizontal slots other slots lying at an inclined angle.
Through these inclined slots studs are passed, and they are secured to.
the vertical face of the bed, so that the lower bar is capable of sliding
upon the studs, by which arrangement the lower bar may be moved to
the left, such movement raising the two upper bars, and causing the
work to be made stiff. When the bars are in their lower position the
work will be made slacker. The lower bar of the three bars carries studs
or picces in or on which the lower incline bar slides.. The two first
named inclined bars carry at one end a two-ended bracket provided with
set screws and nuts at each end capable of adjustment. The distance
between these set screws regulates the distance the carrier-needle bar or
bars traverse over and above the length of throw or traverse of the frame
incline bars, which incline bars are moved to the right and left alternately
as follows:-On the top side of the bed plate arc sleys for the machine
needles and needle bits to slide in, being moved to and fro horizontally.by
a bar or bars carrying inclines which operate them. This bar or bars is
or are moved to the right and left by a link or rod, which is connected
with a crank or cam on the back end of a short horizontal shaft at one
end of the machine, and lying at a right angle to the length of the bed..
The machine needle incline bar or bars carries a tumbler. driver or
equivalent which drops between the ends of the adjustable set screws at
the end of the frame incline bars, by which means the extra traverse of
the carrier needle bar above referred to is obtained. The tumbler driver
or equivalent can be raised when a longer traverse of the carrier needle
.
JKY
"
'T

page_text: bar is required by a bell-crank lever lifted by a vertical rocking lever
pressed against it by a stud in a toothed wheel, which has as many teeth
as there are courses of fabric to be made in the length of each ribbed
top. This toothed wheel is on a short shaft at the end of the machine,
and lies under the horizontal shaft which carries a worm or other wheel
which drives the toothed wheel carrying the stud operating the vertical
rocking lever. At one end of the machine incline bar is an axle pin
which carries a rocking arc pierced with a slot in which slides a stud at
the lower end of a vertical bolt, which is raised and lowered by the
incline. Such bolt will when in its lowest position allow a driver on the
thread carrier bar or bars to pass over it, and when in its highest
position it strikes the driver first on one side and then on the other,
causing alternate right and left traverse of the carrier bar. The machine
incline bar is provided with a horizontal bar slotted, which operates upon
the incline bars to draw them back to hold the machine needle back
when the welt is being made. There is a second incline slotted bar on
the front machine incline bar, which operates the front inclines in such
manner that they are set to the front or back to form stiff work or slack
work on the machine needles. The lower horizontal shaft at one end of
the machine is provided with a toothed wheel which gears into a second
toothed wheel which drives a wheel on the end of the shaft on which the
work is wound. The opposite end of this shaft has a pattern wheel on it,
which throws in first one set of thread carriers and then another set of
carriers.
The carrier bars slide in a frame or bearings working on centres
supported by brackets at each end of the machine and elsewhere, if the
length of the machine requires them. The work roller or shaft carrics
as many rollers as there are breadths of work made across the width of
the machine. Each roller is free to revolve round the shaft, but any
amount of pressure, may be placed upon each roller separately by the
shaft carrying a clamp at the end of cach roller adjustable by a set screw.
The lower horizontal shaft at one end of the machine carries a worm
gearing into a wheel on a vertical shaft, having a counting dial by which
the number of ribbed tops made by the machine in a given time is
certified.
Having thus stated the nature of the said Invention, I proceed
more particularly to describe the manner of performing the same, with
reference to the accompanying Drawings.
T

page_text: Figure 1 represents a front view of a machine in which the whole of
my improvements are combined; Figure 2 is a view of this machine
showing the standards at the left end, and the apparatus for operating
the thread carriers, the bedwork roller, and certain parts herein-after
mentioned being shown in section; Figure 3 is a view of the right end
of the machine; Figure 7 is an enlarged sectional view of the upper
part of the machine; Figures 4, 5, 6, and 8 to 15 inclusive are separate
portions of the machine more particularly referred to hereafter.
Description of the Several Parts and their Separate Movements :-
A, A, are two standards, to which is secured a bed B pláned true on
its top and front sides. The vertical face of the bed receives a number
of sley brasses C (see Figures 7, 9, and 10), the backs of which lic upon
the face of the bed in such position that the frame needles and needle
bits E are free to slide in the slcys vertically in front. These sleys arc
somewhat thinner at each end, and they are held firmly to the face of
the bed by clamping plates D lying on the thin ends and secured to
the face of the bed. The clamping plates are grooved at tlic back to
receive sliding bolts F which project at the front at their upper end
to form holding down pieces which press upon the top edge of a bar G,
which carries inclines G₁. This bar is secured on the front of another
bar G which lies partly below it and is cut on its top edge reverse of the
inclines G₁, which inclines as they are passed to the right or left press
upon the top side of the nebs of the frame needle bits E and lower
them; the reverse inclines in the bar G2 press upon the bottom of the
nebs and raise them. The sliding bolts F have studs projecting in front
at the lower ends, which studs slide in horizontal slots in a third bar G'
lying below the incline bars. This third bar has, besides the horizontal
slots, other slots lying at an inclined angle, througli which other slots
studs Garc passed and secured in the vertical face of the bed, so that
the lower bar is capable of sliding upon the studs, by which 'arrange--
ment the lower bar regulates the length of loop drawn by the frame.
needles. When moved to the left the two upper bars will be raised and
will cause the work to be made stiff; wlien the bars are in
a lower
position the work will be made slacker. The lower bar G³ is notched.
on its under side to receive one end of a spring which is secured to the
bed. This spring prevents the bar from moving from the position in
which it is placed. This bar also carries studs or pieces in or on whiėli

page_text: the lower incline bar slides. The two incline bars are secured together
by screws, as shown at Figures 1 and 14. In front of each frame needle
sley is a brass plate, which is held close to the sley by studs in the
clamping plates D. To each of these brass plates is soldered or otherwise
secured a wire G³, seen at Figures 1, 7, and 14, which wire prevents the
latchets of the frame needles from closing upon the hooked ends of the
needles as they are successively released from the loops during the
rising of the needles, thereby ensuring that the hooks shall secure the
thread to form fresh loops as they are lowered. A frame needle bit sloy,
shown in plan at Figure 9, has a number of the pieces at each selvage
that lie between the needles when they are placed in it somewhat longer
than the central pieces. Such longer pieces prevent the needles from
being pulled together by the weight of work, and when at work cach
sley is held up, as shown at Figures 1, 7, 10, and 14, by a handle G,
but when it is requisite for the convenience of the workman each sley
may be lowered to the position shown by dotted lines on Figure 10, by
moving the handle to the right, such handle turning on a pin in the cast
bed. The incline bars G and G³ carry at one end a two-ended bracket H
provided with three set screws capable of adjustment. The distance
between these set screws regulates the lead of the machine inclines over
and above the length of throw or traverse of the frame incline bars,
which incline bars are moved to the right and left alternately by a
tumbler driver H' which drops between the set screws in the bracket H.
The tumbler driver and bracket I will refer to more particularly
hereafter.
Having described my improved arrangements of parts constituting
the frame, I will now describe those parts which I denominate the
machine, and which I arrange and operate in the following manner :-
On the top side of the bed of the machine are sleys C¹, shown at
Figures 1 and 7, for the machine needles and needle bits to slide in, the
needles and needle bits being moved horizontally at right angles to
the frame needles by the machine inclines K, L, which are secured to
the under side of a plate M which slides between two parallel cross
pieces M¹ secured to the top sides of two bars M², M³, which are also
parallel to each other, the bar M³ resting and sliding upon the tops of
the clamping plates D' and the bar M³ upon the studs D³ cast upon and
forming part of the bed. These bars and inclines are moved to the
right and left. by a connecting rod M* working at one end on an axle

page_text: in a bracket secured to the top side of the bar M³, and its other end on
an axle in a lever secured on the back end of a short horizontal shaft O
at the right of the machine lying at a right angle to the length of the
bed, the bearings being supported by brackets secured to the right end
standard. The incline plate M is cut away in the centre for a portion
of its length and forms parallel grooves, in which a piece slides which
carries an incline N. The front end of the plate M carries a stud which
takes into an inclined.slot in a flat bar M³, which is capable of being
adjusted to the right or left, and thereby moving the machine. needles
inward or outward, that is to say, from or towards the frame needles, to
form a slack or stiff course, such adjustment when made being kept by
a spring which is secured to the bar M² taking into one of the notches
at the back of the bar M³, which bar slides on the plates M' and is kept.
in position by the studs M, on which the bar is held by clips embracing
such studs. The sliding piece carrying the incline N is provided with a
stud on the top side which takes into an inclined slot in a bar M', which
bar has also straight slots, through which studs are passed and secured
into cross pieces M', thus securing the bar M' firmly in the position
shown, but leaving it capable of being moved parallel with the bar M5
in addition to its right and left movements, such additional movements
being communicated in the manner following: There is a lever P which
rocks on an axle in the right end standard, shown by dotted lines in
Figure 1, and is also seen in Figures 3, 5, and 13. This lever carries
a stud at its lower end, which stud is pulled forward by an arm secured
to a toothed wheel P¹, causing the upper end of the lever to be thrown
backwards, so that the bar M7 near the completion of its movement to
the right strikes the said lever and is forced into the position shown
at Figure 13, in which position it is held by a spring M³, thereby forcing
back the inclines N so that the machine needles are not pressed forward,
and while they remain back the frame needles make plain work. When
the arm on the wheel P¹ has released the lever P. the lever falls forward
and its upper front end which is cut to an incline then lies opposite the
end of the spring M³; as. it is moved to the right it slides up such incline
and is lifted clear of the bar M', which is drawn to the right by a
spring hooked on the back of the bar and also on to the axle bracket
of the connecting rod M', the incline N being thrown forward by such
movement, the machine will then make a ribbed fabric. The two
selvage needle bits of each breadth, one of which is shown in plan
and side view at Figure 12, not being acted upon by the inclines N arc

page_text: constantly operated by the inclines K, L, thereby ensuring a perfect
selvage. The wheel P' is moved once round to each top made, and is
secured on the inner end of a short shaft lying in bearings adjustable
on a bracket screwed to the end of the machine. The outer end of the
shaft carries a toothed wheel P³, part of which is shewn the full size at
Figure 4. This wheel is driven by a cam wheel P, shewn at Figure 11,
which wheel revolves once to every two courses made by the macliine:
The shaft O càrrics at its front end a toothed whcel P³, which is driven
by a wheel P on the pulley shaft which is carried by the front bracket
secured to the end standard, or motion may be given to the machine by
a wheel P' carried by bearings secured to the front bracket just named,
the shaft P' terminating in a handle for the operator's use. The lead of
the machine inclines is obtained by the following means:-The machine
driving bar M2 has bearings at its right end which carry the axle of a
tumbler driver 'H' which terminates in a handle in front for the con-
venience of the workman. This driver during the making of a ribbed
top lics between.the lower set screws in the bracket H, pressing against
them and causing an alternate right and left traverse of the frame
needle inclines to follow the lead of the machine inclines, except at such
time as the tumbler driver is held clear of the lower set screws by a
right angled lever I which is raised by the upper end of a lever H2
striking it, the lever H being operated twice during one revolution of
the wheel P by two studs on the said wheel pressing upon its lower end,
thus causing the lever I to raise the tumbler driver in a line with the
upper set screw in the bracket H, thus shifting the position of the
machine inclines, and causing the machine and frame needles to draw
equal portions of loop forming a slack course. During the making of
the ribbed fabric the frame needles alone receive the thread from the
carriers and draw the loops, the machine needles taking their loops from
the frame loops, the frame needles being slightly in advance of the
machine needles at such time. To the frame incline bar G brackets Q
are secured by screws; these brackets carry a bar to which a number of
bent wires Q' are soldered or otherwise secured. These wires are shewn
in end view at Figure 7., in front view at Figure 14, and in plan at
Figure 15, and are for the purpose of preventing the latchets of the
machine needles closing upon the hooked ends of the needles as they
are successively pushed forward by the inclines, thereby ensuring the
hooks securing their loops as they recedc. There are two of these wires
to each breadth of work; and the requisite lead for placing each wire

page_text: alternately in the required position is obtained by the right end of the
bar being connected to the upper end of the rocking lever Q' which moves
on an axle pin in the bar G, the lower end of the lever striking on its
right side the horizontal shaft O, and its left side striking a stop plate Q³
secured to the bracket at the right of the machine (see Figure 1) thus
reversing the position of the wires at each motion of the machine. To
the machine incline bar M² is secured a vertical arm or driver R, near
the left end of the machine. This arm stands somewhat above the
inclines, and as it is moved to the left it passes under a lever R¹, shewn
in plan at Figure 8; the lever then falls, and the arm as it returns to the
right passes in front of the lever and forces it back, thereby throwing
forward a number of wires which are securely attached to the top sido
of a bar R which is bent at a right angle at each end and rocks upon
centres or axles in two standards S, one of which is secured to each end
of the bed, the left end of the bar R³ being again bent at a right angle
over the bed and carrying the lever R', which arrangement throws the
wires forward and takes up the slack of the threads passed in front of
such wires, the bar R² and wires being pulled back by a spring passed
round the bar and also round one of the standards supporting the cop
pin bars and the thread guide bars R³. The brackets S carry axles upon
cach of which a slotted plate S¹ swings, which plates are connected to
each end of a bar, seen in section in Figures 2 and 7. In each of the
plates S are an equal number of slots, such number varying according
to the number of colored threads which are intended to be employed.
In the Drawings only three slots are shown in each plate. In these slots
slide the carrier bars S5 being likewise supported by two other bearings
on cach side the centre. To the carrier bars are secured the thread
carriers So and also wire guides when necessary. One or other of the
thread carriers is thrown into position to supply the frame needles with
one or other colored threads at stated periods by the following means:—
At the back of the plate S¹ at the left of the machine projects a slotted
lever S³, in which slot is adjustable the axle of the upper end of a
connecting rod which works at its lower end on an axle adjustable in a
lover S³ which moves on a pin in the cop bar bracket. This lever is
pulled down by a spring attached to it and to the standard, the lever
being raised by projections on the pattern plate S*, thus throwing first
one colored thread and then another, according to the pattern wheel
employed, of which wheels there are as many as there are changes of
colors required. The traverse to the right and left of the carrier bars is
'

page_text: .
effected as follows:-The right end of the machine incline bar M²
carries a bracket T, in which a bolt slides vertically. This bolt has a stud
at the back near its upper end, which stud lies in the slot of a rocking
lever T¹ which turns on an axle in the lower end of the bracket T. This
lever has a stud projecting at the back below the slot, which stud
alternately strikes the stop plates T2 and T, shewn at Figures 1 and 14.
These stop plates are adjustable in slots in the arm T* secured to the
bracket S at the right of the bed, such movements of the rocking lever
will raise and lower the bolt in the bracket T, which bolt when in a
raised position will strike against a driver To which is secured at the
end of each carrier bar, and will carry such carrier bar with it until
the bolt is lowered to allow it to pass under the driver, when it is again
raised on the opposite side of the driver to carry it the reverse way. As
the work is produced on the machine it is wound upon the work rollers
by the following means:-The shaft which carries at the left end the
pattern wheel S* is also the work roller shaft, and carries a toothed
wheel P² gearing into a similar toothed wheel P¹ secured on the inner
end of the shaft, which shaft also carries the wheel P³, which wheel is
driven by the cam wheel P', such work roller shaft carries as many
separate rollers U as there are breadths of work made across the width
of the machine. Each roller is made free to revolve independently
round the shaft, but any amount of pressure may be placed upon cach
roller separately (such pressure corresponding to the varying weighting.
of the work roller usually employed) by the shaft carrying a clamp U'
at the end of each roller, the pressure being adjustable by a set screw
which presses upon a spring, carried by the clamp boss, as seen at
Figure 2. The lower horizontal shaft at the right end of the machine
carries a worm gearing into a toothed wheel of sixty teeth on a vertical
shaft V, which carries a pointer at its upper end above a figured dial V',
which certifies the number of tops made.
Having now described the several parts and their separate movements,
I now proceed to describe the combined movements of the machine.
The thread carriers lay the threads in the hooks of the frame needles,
which being lowered by the frame inclines draw the loops on to the
machine needles as they are taken back, the frame needles determining
the length of loop, and being on the rise to allow the machine needles
to knock over their loops as they are drawn back.
Having now described the nature of my said Invention, and in what

page_text: manner the same may be performed, I declare that I claim, the general
arrangement and combination of machinery or apparatus. employed in
in the manufacture of looped or knitted fabrics, substantially as herein-
before described.
In witness whereof, I, the said Thomas Coltman, have hereunto
set my hand and seal, this Fifth day of July, in the year of
our Lord One thousand eight hundred and seventy.
Witness,
GEO. JON. ROBINSON,
Patent Office,
Nottingham.
THOMAS COLTMAN. (L.S.)