IMPROVE- MENTS IN WEIGHING MACHINES
Year: 1875

page_text: LETTERS PATENT to Nicol Brown, of the City of Glasgow, in the
County of Lanark, North Britain, for the Invention of "IMPROVE-
MENTS IN WEIGHING MACHINES."
Sealed the 3rd August 1875, and dated the 13th February 1875.
PROVISIONAL SPECIFICATION left by the said Nicol Brown at
the Office of the Commissioners of Patents, with his Petition, on
the 13th February 1875.
I, NICOL BROWN, of the City of Glasgow, in the County of Lanark,
North Britain, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN WEIGHING MACHINES," to be as follows:-
The object of this Invention consists in automatically registering or
printing the actual weight of railway and other waggons and their
contents, or other articles placed on the weighing plate of platform
weighing machines, in ordinary figures (as in tons and hundredweights)
on a travelling band of paper, all by new or improved means or

page_text: mechanism to be applied to such machines for that purpose, whereby a
continuous record is obtained either in single, double, or triple copies,
without the chance of error from calculating or reading off, or trans-
cribing from mere ruled or divided cards or tablets, and in less time
than can be done by the modes and means heretofore in use.
The nature and novelty of this Invention consists in fixing or
engraving a set of figures (representing the weights) on one side of a
reciprocating rod over each other in as close, equal (or slightly differ-
ential) distances, and as small as would be quite legible and distinct
(even when printed in close column, form, or sequence), ranged either to
print and read with the higher weights down or up as may be desired.
When it is desired to print and register the weights rising on the
upward traverse of the rod, it would under one arrangement of the
mechanism be hung at its lower end to a light chain, the upper end of
which would be wound over and fixed to the periphery of a light pulley
on the same axis as a smaller or reducing pulley, having a corresponding
chain attached and wound round it in the reverse direction, and having
its free end carried preferably up and attached to near the extreme end
of the long weighing lever or steelyard of the weighing machine. The
stud or centre of these pulleys is suitably fixed below the end of the
lever for that purpose, and for giving an increased proportional rise to
the weight printing rod to that of the lever for each unit distance or
rise in hundredweights or other unit weight. The upper end of the rod
is guided between two cheeks of a light frame, with the impressing or
printing figures or types next or facing the web of paper passing over
two guide rollers in front, having a spring stamper working between
them on the other side, so that when this is drawn in against the power
of a spring (preferably a spiral spring surrounding the spindle of this
stamper), and let go its front end which is just the thickness of the
height of each set of types, forces the paper againt the types which are
raised (by the said proportional or differential pulleys and their chains)
opposite it at the time being so as to take an impression thereof, all as
will herein-after be more fully described.
One, two, or more strips of the white paper with a layer or strip of
black or coloured copying or impressing paper in front or between cach,
are first rolled on to a delivery or supply roller placed in front, and
carried above or below the guide rollers with a spring or other slight

page_text: friction space, so as to be drawn respectively over the other lower or top
guide roller by a pair of drawing rollers carried in journal bearings in
the front of the said frame and geared together, and fed by a ratchet
wheel on one of them to the extent of one tooth or more by the back.
stroke of a pawl after every action and impression or registration of the
instrument ready for the next action, which distance between the
teeth or motion of the pawl of the ratchet wheel determines the uniform
distance between the printed figures or weights on the paper.
The upper part of the rod carrying the type is jointed by a pin to the
lower stem part with a slightly elliptical hole, so that it can rise to
nearly the extent of one division of the type, and the back of the upper
part of this rod is formed with V shaped divisions or notches corre-
sponding in pitch to the type in front, and to those of a lateral sliding
block behind, which is similarly notched, so that when this block is
pushed back against the former its angled teeth enter the notches of the
rod, and raise the next or nearest lower type in a line opposite the
pressing point of the stamper, while a lateral sharp point or pricker
rigidly attached to the lower part of the rod, makes a mark or hole in
the paper by the same blow of the stamper, and which shows how much
the type has been raised by the angled teeth of the pressure receiving
block behind, thus showing within a very little of the exact weight less
or more than the weight printed by the type. This back block is moved
by the hand lever which actuates the whole (by the hand of the operator
immediately after the vehicle is rolled, or other load placed on the
platform of the weighing machine), automatically through an oscillating
spindle or other equivalent, preferably carried behind in journal bearings,
all portably on the same frame, carrying the before-mentioned parts, and
connected by a short crank and connnecting rod. The same recipro-
cating motion of the said handle, shaft, or block by a link and lever in
front of the stamper draws it out by a catch and lets it go, so that its
spiral spring as before stated causes its point to press the paper against
the face of the type, and the coloured paper to print the weight on the
white paper next it, from or by the particular type raised opposite it by
the lever of the weighing machine and new or improved arrangement of
differential pulleys and chains. The back stroke of the same handle (or
any of its said moving parts) through the lever connected to the pawl of
the ratchet wheel, turns the feeding roller and paper ready for the next
action and registering of the weight, or otherwise the feeding stroke of

page_text: the pawl and ratchet might be effected by a spring, and have the spring
and pawl drawn forward only by the action of the hand lever.
The first or forward motion of the hand lever may be made to strike
the stamper instead of the reaction of its spring as before stated, and it
might also be made to free the steelyard or lever of the weighing
machine just before actuating the registering parts, and lock it again.
after doing so, all otherwise as locking levers have fixed and released the
weighing levers of such weighing machines heretofore, no particular
novelty being herein connected with this locking mechanism.
t
Instead of rolling up a color printing band with the paper to bo
printed a separate endless or other band might be traversed in the same
direction, or across the front or back of the paper to be printed or other-
wise (although this is not preferred), the top rod might be removed back
after ever stroke sufficient to allow a small roller or other equivalent to
ink the type, and have a thin plate or other equivalent in front with a
slit in it at the part where the stamper worked, which would prevent
any of the types from marking the paper except those brought up
opposite the slit.
To give the proper balancing and increasing or differential weight
action on the lever of the weighing machine, and nearly equal divisions
between the types for each unit or hundredweight to be registered or
printed, a compensating or differential weight is used, (arranged to be
Lifted by and act on the rising of the lever of the weighing machine), as
by hanging its chain over a curved flange on the one side of the
differential chain pulleys, or the reciprocating rod may be made to lift a
lever with such a compensating weight on it, increasing as it rose
differentially to effect the said purpose, and although chains have been
described for transmitting the differential motion to the hanging rod
with the type or figures, it is to be understood that fine tooth wheels
might be used instead of the chains, by fixing a toothed segment on the
end of the weighing machine lever, gearing into the smaller wheel, the
larger wheel being either connected to the rod by a rack or by a chain
as described.
Other modes of giving the differential or increasing weights besides

page_text: lever stepped or notched to lift the different weights as it rose, either of
which would give the required compensating balance for each unit of
weight desired to be registered.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Nicol Brown in the Great Seal Patent Office on
the 11th August 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, NICOL
BROWN, of the City of Glasgow, in the County of Lanark, North Britain,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of February, in the year
of our Lord One thousand cight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Nicol Brown, Her special
licence that I, the said Nicol Brown, my executors, administrators,
and assigns, or such others as I, the said Nicol Brown, 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 WEIGHING MACHINES," upon the condition (amongst others) that I, the
said Nicol Brown, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, 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 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 Nicol Brown, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by
the following statement in writing, reference being had to the accom-
panying Sheet of Drawings and to the letters and figures marked
thereon, that is to say :-

page_text: The object of my said Invention consists in automatically registering
or printing the actual weight of railway and other waggons and their
contents, or other articles placed on the weighing plate of platform
weighing machines in ordinary figures (as in tons and hundredweights)
on a travelling band of paper, all by new or improved means or
mechanism to be applied to such machines for that purpose, whereby a
continuous record is obtained, either in single, double, or triple copies,
without the chance of error from calculating or reading off or transcribing
from mere ruled or divided cards or tablets, and in less time than can be
done by the modes and means heretofore in use.
The nature and novelty of this Invention consist in fixing or engraving
a set of figures (representing the weights) on one side of a reciprocating
rod over each other in close, equal (or slightly differential) divisions,
and as small as would be quite legible and distinct (even when printed
in close column form or sequence), ranged either to print and read with
the higher weights up or down, as desired.
When it is desired to print and register the weights rising on the
upward traverse of the rod it would, under one arrangement of the
mechanism, be hung at its lower end to a light chain, the upper end
of which would be wound over and fixed to the periphery of a large
light pulley fixed on the same axis as a smaller or reducing eccentric or
cam pulley, having a corresponding chain attached and wound round it
in the reverse direction, and having its free end carried preferably up,
and attached to near the extreme end of the long weighing lever or
steelyard of the weighing machine. The stud, centre, or spindle of
these pulleys is suitably fixed below the end of the lever for that purpose,
and also for giving an increased proportional rise to the weight printing
rod, to that of the lever, for each unit distance or rise in hundredweights,
or other unit weight. The upper end of the rod is guided between two
cheeks of a light frame with the impressing or printing figures or types
next or facing the web of paper passing over two guide rollers in front,
having a spring stamper working between them on the other side, so
that when this is drawn or pushed in against the power of a spring
(preferably a spiral spring surrounding the spindle of the stamper) and
let go its front end, which is just the thickness of the height of each set
or row of types, forces the paper against the types, which are raised (by
the said proportional or differential pulleys and their chains) opposite it

page_text: at the same time being so as to take an impression thereof, all as will
herein-after be more fully described.
One, two, or more strips of the white paper with a layer or strip of
black or colored copying or impressing carbonic paper in front or
between each are first rolled on to a delivery or supply roller placed in
front, and carried above or below the guide rollers, with a spring or
other slight friction pace so as to be drawn respectively over the other
lower or top guide roller by a pair of drawing rollers carried in journal
bearings in the front of the said frame, and geared together and fed by
a ratchet wheel on one of them, to the extent of one tooth or more, by
the back stroke of a pall after every action and impression or registra-
tion of the instrument ready for the next action, which distance between
the teeth or motion of the palls of the ratchet wheel determines the
uniform distance between the printed figures or weights on the paper.
The upper part of the rod carrying the type might be jointed by a pin
to the lower stem part with a slightly elliptical hole so that it can rise
to nearly the extent of one division of the type, and the back of the
upper part of this rod is formed with V shaped divisions or notches corre-
sponding in pitch to the type in front, and to corresponding V shaped
notches in a lateral sliding block behind, so that when this block is drawn
or pushed back against the back of the rod its angled teeth enter the
notches therein and raise the next or nearest lower type in a line opposite
the pressing point of the stamper, while a lateral sharp point or pricker
rigidly attached to the lower part of the rod makes a mark or hole in
the paper by the same blow of the stamper, which shows how much the
type has been raised by the angled teeth of the pressure receiving block
behind, thus showing within a very little of the exact weight less or
more than the weight printed by the type. This back block is moved
by the hand lever which actuates the whole (by the hand of the operator
immediately after the vehicle is rolled or other load placed on the
platform of the weighing machine) automatically through an oscillating
spindle or other equivalent preferably carried portably behind in journal
bearings on the same frame carrying the before mentioned parts and
connected by a short crank and connecting rod or rods. The same:
5 reciprocating motion of the said handle, shaft, or block by a link and
lever in front of the stamper draws it out by a catch and lets it go, so.
that its spiral spring, as before stated, causes its point to press the paper
against the face of the type (or, vice versa, the handle may push in the.

page_text: -
block and the spring force it out from the paper again) and the colored
paper to print the weight on the white paper next it from or by the
particular type raised opposite it by the lever of the weighing machine
and new or improved arrangement of differential pulleys and chains.
The back stroke of the same handle (or any of its said moving parts)
through the lever connected to the pall of the ratchet wheel turns the
feeding rollers and paper ready for the next action and registering of the
weight; or otherwise the feeding stroke of the pall and ratchet might be
effected by a spring and have the spring and pall drawn forward only by
the action of the hand lever.
The first or forward motion of the hand lever may be made to strike
the stamper instead of the reaction of its spring before stated, and it
might also be made to free the steelyard or lever of the weighing
machine just before actuating the registering parts, and lock it again.
after doing so, all otherwise as locking levers have fixed and released
the weighing levers of such weighing machines heretofore, no particular
novelty being herein connected with this locking mechanism.
In order that the full nature and novelty of my said Invention and
the manner of performing the same may be properly understood, I will
now proceed to describe the several Figures on the Sheet of Drawings 2
which I have hereunto appended for the purpose of showing the best
modes and means I am at present aware of for so carrying the Invention
into effect or practice, the same reference letters and numerals indicating
the same or equivalent parts in all the Figures.
Figures 1 and 2 are an end elevation and a front side elevation, 2
respectively, both partially in section; and Figure 3 is a plan corre-
sponding to Figure 1, all of one modification or construction and
arrangement of my improved mechanism for automatically printing the
weight of railway and other waggons and their contents placed on the
platform or weighbridge of weighing machines, all in accordance with 3
and illustrative of one modification of my said Invention or improve-
ments, and all shown as applied to a twenty ton weighing machine, the
ordinary long weighing lever Z, z, of which only is shown in the
Drawings with its fulcrum bearing column Z', Z", and having a greater
part of the middle of the long arm Z of the lever shown as broken away, 3
as also the rod W below which connects the main levers of the weighing
machine with the short arm z of the lever. The strain on the rod W in

page_text: this application being taken at two hundredweights per ton on the
platform or weigh bridge of the weighing machine, but of course this
would vary according to the arrangement of levers inside the weighing
machine box.
The whole of the improved registering mechanism is carried on the
portable frame A, A, A¹, A", formed of two cast-iron side frames A, A,
secured together by the top plate or table A¹ and cross stays A" below.
The free end of the lever Z of the weighing machine is attached to the
upper end of the chain a¹, which is loosely wound round the large outer
circumference of the flanged scroll, pulley, or segment a to the smallest
part or radii a", where the other end of the chain is screwed or otherwise
fixed. The scroll segment a is keyed or fixed on the same spindle B as
the large flanged pulley b, so that both revolve together by the spindle B
loosely in the bearings B¹ on the one side of the standards A, A. The
upper end of the chain b¹ is secured to a point 6" in the circumference.
of the pulley b, while its lower end is connected to the lower end of the
index or type registering vertical reciprocating rod c (both the chain and
rod being shown as broken away), with edge slides c¹ working up through
a suitable slot in the table A'.
This indicating apparatus is adapted for registering the weight put upon
the platform or bridge of the weighing machine, from 5 tons up to 20
tons, rising by a hundredweight as units, so that for this purpose the
front face of the index or printing rod c from the top downwards has
rows of type d fixed, cut, or engraved every eighth of an inch for 3 feet
1 inches downwards (as shown in Figure 2, and more particularly in
the enlarged front view of the top of the rod c, Figure 2 A), that is,
giving 301 horizontal rows, the first indicating 5 tons, the second 5 tons
1 hundredweight, and the third 5 tons 2 hundredweights, and so on to
the last, which would indicate 20 tons, rising by an additional hundred-
weight each row, cut or set backwards as type, so as to read properly
from left to right when printed. On the back of the index rod c, d,
V shaped notches e are formed (as shown in Figure 1, and in the enlarged
edge and back view of the top of the rod c in Figure 1 A) every eighth
of an inch, exactly opposite the rows of type, Figures d, indicating the
weights, and a sliding block E is similarly cut with notches and V shaped
projections e¹ on its front face, so as to fit into the former e when the
block E is drawn up against the back of the index rod c to set and hold
it, all as will herein-after be more particularly described. Thus as the

page_text: large chain pulley 6 is shown about 18 inches in diameter it requires to
turn about two-thirds of the circumference in the direction indicated in
and by the red arrow and radial lines on it in Figure 2 to wind up the
chain ¹ to raise the rod c the 3 feet 1 inches required to register from
the 5 tons up to the 20 tons, as explained, and as the chain a' is wound
on the scroll segment a in the opposite direction to the chain b¹ it uncoils
to the extent of about 6 inches differentially, corresponding to the rise
of the free end of the lever Z to give the full range of the index rod as
stated, for the equivalent weight of the loads placed on the weighbridge
of the machine acting through the rod W and shorter arm 2 of the
lever Z, z.
The rod c works up through between two horizontal parallel
grooved slides C, O, formed or secured to the top of the table A³, and in
which the back block E is guided when worked by the stud centre eu
projecting down from its under side through a hole cut for it in the centre
of the table and connected to the back end of the two links e³, which
have their front end connected to the lower short arm f' of the hand
lever ff, fulcrumed on the spindle" in the brackets f* on the under
front side of the table A¹, so that the upper long arm f works up through
a slot in it and in the front stamping block D, D', guided in the
slides C, C, in front of the index rod c, the actual stamper D¹ being
formed at its upper back edge just the thickness and width of each
row of type figures, and set opposite the top row indicating 5 tons in the
normal position of the lever Z, z, and the chains a¹, 61, and their scroll
segment and pulley a, b, and the index rod c, as shown in Figures 1 and 2
of the Drawings. Within a recess below the stamper D¹ a spiral
spring D is fitted, bearing against a fixed projection D' on the table A²
and the back end of the stamping blocks D, so as to press the blocks D
and E back after each stroke and registration effected by the hand
lever against the power of the spring D¹¹.
The long or continuous length or band of paper 1 on which the
weights are to be printed is wound on a roller or spool F, carried in
bearing brackets C' projecting up from the slides C, and either led
direct from the spool or the spool may rest on the under uniform speed
giving off roller F¹ carried in the same brackets, and paced by a
light spring or other friction arrangement to give a slight tension and
tightness to the paper 1, which is led over and down vertically in front
of the two small guide rollers g, g', carried in bearings above and below the
stamper D¹, and between it and the face of the type or index Figures d,

page_text: the paper 1 being finally led from the lower roller g' through between
the two griping and delivery rollers G, G³, carried in bearings in tho
front standard A with a hinged door G" in front for conveniently getting
at these rollers and the printed paper 1, which may be delivered into a
receptacle below or be wound on to one of the rollers, or on to special
spools for the purpose. The upper taking-up roller G may be covered
with india-rubber to assist the griping and delivery action, and have a
ratchet wheel g" keyed on one end of its axis actuated by the ratchet
pall g², carried and reciprocated by the lower arm f' of the lever f, ƒ³,
every backward stroke of the latter to the extent of one ratchet tooth
after printing or registering each load weighed on the platform of the
machine, so as to present a new part of the paper 1 opposite the
stamper ready for registering the next load placed on the platform of
the machine.
A narrow band of carbonic or other equivalent inking paper 2 is
stretched between the two rollers 2', 2", in front of the index type d,
and the paper 1 to be printed (stretched between the rollers g and g¹),
all as indicated in blue lines in Figure 1, and which may be taken
up by hand or otherwise from the lower roller 2' to the upper one 2", or
vice versa, from time to time as required after the extraction of the ink
from the paper 2 by the continued action of the stamper D', in pressing
the paper 1 against it, and the type to stamp the Figures thereon each
time the lever f is pushed in the direction of the arrow in Figure 1.
This is done by the hand of the operator, while the waggon or load to be
weighed is resting on the weighbridge or platform of the weighing
machine, and raises the free end of the lever Z and the index rod c,
all so as to bring the type d representing the weight of that load opposite
the stamper D so as to be struck by it. But should the weight of the
load be or include a fraction of a hundredweight, and so be unable to
lift the nearest type d exactly opposite the stamper D', the same motion
of the hand leverf through the links e³ would draw the teeth e¹ on the
front of the block E into the notches e on the back of the rod c, and
raise the nearest type opposite the stamper D¹ just before it struck the
paper 1 and 2, and type d, so as to take the impression and register the
weight on the paper 1, as before stated.

page_text: endless, or other bands might be traversed across the front or back of
each strip or length of the paper to be printed, especially when soveral
copies of the weights were required to be taken. Or otherwise the light
rod c, d, might be made wide enough to have two or more duplicate
columns of type figures set or engraved on it, so as to print two or
more copies of the weights in tablet form when this was required.
By another arrangement (although this is not preferred) the top part
of the light rod c might be attached by a joint to the lower part c*,
which is directly attached to the chain b', so that it could be removed
back from the paper after every stroke of the stamper D' sufficient to
allow a small roller or other equivalent to ink the face of the type, and
have a thin plate or other equivalent in front with a slit in it at the
part opposite to the stamper for the latter to work through, and which
would prevent any of the types from marking the paper except those
brought up opposite the slit and stamper D'. When the rod c, d, is
made light it could be jointed by an elongated or elliptical joint to tho
lower part c*, as stated, a weight being attached to the part c* or to the
lower end of the chain 6¹ to maintain the regular or rigid action of this
part with the pulley b, and yet allow the upper light part c to be
raised by the back block E to the extent of one of its V shaped teeth e,
when the lever Z and connecting chain and segment a¹, a, and wheel b
and chain b¹ do not raise the rod to indicate an exact unit or hundred-
weight; and when desired this fractional part could be indicated by a
sharp pricker at the top of a light wire rigidly attached to the part c*
below the lifting joint referred to, the same blow of the stamper which
printed the weight causing the pricker to pierce the paper tablet; the
mark thus made would indicate the fractions of hundredweights over
indicated by the weight actually printed.
When the paper 1 is fed downwards, as described and indicated by
the arrows in Figure 1, the rows of type figures d indicating the weights
could be set or engraved upside down, so that the printed paper tablet
would indicate the weights of the railway or other waggons of coals or
other loads in sequence as they were taken, reading downwards, and not
as indicated in Figure 4, which shows a printed paper tablet of the
weight of such loads (placed on the weighbridge or platform of the
weighing machine) as they would be printed full size by the indicating
apparatus and arrangement of the types shown in Figures 1, 2, 3,

page_text: and Z A. And to make these printed tablets 1 more durable whey migav
be printed on paper mounted on cloth cut into strips or on tape bands,
which after being printed with the weights of a certain set of waggons
desired to be kept separate could be cut off, and have the number of the
waggons and the name of the firm for which the weights were taken
marked on the tablet so printed.
When it is desired to print the weights of different sets of waggons of
different materials in different columns this could be done on a sheet or
card tablet set off in columns and mounted in a frame in front of the
index rod and type c, d, which frame could be shifted vertically and
laterally by hand to the column of the tablet in which it was desired to
print the sets of weights to be kept separate.
To give the proper balancing and increasing or differential weight
action on the lever Z when it is connected by a chain a¹ wound round a
small pulley instead of the scroll segment a, and nearly equal distances
or divisions between the type d for each unit or hundredweight placed
on the machine and to be registered or printed, a compensating or.
differential weight may be used, arranged (to be lifted by and act on
the rising of the lever Z of the weighing machine) by hanging the chain
of this weight over a cam or curved flange or segment on the axle or
one side of the chain pulleys b, such as the one a, but inverted, and set on
the rising side, so that the power of the weight is increased as the lever
rises; or otherwise the reciprocating rod c might be made to lift a lever
with such a compensating weight on it increasing as it rose differentially
to effect the said purpose, and although chains have been described for
transmitting the differential motion of the lever Z to the light hanging
rod c with the type figures d, it is to be understood that fine toothed
wheels might be used instead of the chains by fixing a toothed segment
on the end of the weighing machine lever Z, gearing into a smaller
wheel fixed on the axle B instead of the scroll segment a, and having
the larger wheel either connected to the rod c by a rack or by a chain,
as described.

page_text: a lever stepped or notched to lift the different weights as it rose; cither
of which would give the required compensating balance for each unit of
weight desired to be registered.
It will also be evident that the weights might be set or engraved
round a light pulley or drum in front of the stamper and be turned by
the rod c as a toothed rack, or by being geared into the wheel 6 by
toothed gearing; or the figures might be engraved or fixed on the edge
of the wheel 6 itself, or on a pulley on the same axle B and have the
stamper worked in front of it in the horizontal plane of the axle.
Having thus described the nature and mode of performing my said
Invention, I would observe that I do not restrict myself to the precise
details or proportions of the parts of my new or improved mechanism
herein described and shown, neither on the other hand do I desire to
claim any of the parts thereof, or the weighing machine to which they
are attached, separately or by themselves, except in connection with my
improvements or mechanism as combined for the purposes herein
specified, but what I consider novel and original and therefore claim as
the Invention secured to me by the herein-before in part recited Letters
Patent is,
-
First. The general construction and arrangement of mechanism con-
nected with and for printing the weight of waggons or other loads placed
on the platform of weighing machines, all substantially in the new or
improved manner herein described and shown in the accompanying
Drawings, or any mere modification thereof.
Second. The placing of rows of figures representing successive weights
rising by uniform units over each other on an index rod or other surface,
to be traversed by the motion of the lever of platform weighing machines,
for the purpose of printing the actual weight placed thereon, all
substantially as herein described and shown in the accompanying
Drawings.
8
Third. The connecting of an index rod or surface, representing
successive weights in figures for printing therefrom, to the lever of
platform weighing machines through or by a plain pulley and a scroll
segment and chains, so as to give the differential action or leverage
necessary for giving the equal motion of the under rod for equal 3
differences of weights or loads placed on the weighing machine, all

page_text: substantially as herein described and shown in the accompanying
Drawings.
In witness whereof, I, the said Nicol Brown, have hereunto set my
hand and seal, this Tenth day of August, in the year of our Lord
One thousand eight hundred and seventy-five.
Witness,
W. R. M. THOMSON,
Patent Agent,
Glasgow.
NICOL BROWN. (L.S.)