Im- WDINDIRA MACHINES
Year: 1873

page_text: LETTERS PATENT to William Stobart, of Cocken Hall, in the County
of Durham, Coalowner, and William Allan, of Sunderland, in the
County of Durham, Marine Engineer, for the Invention of "Im-
WDINDIRA MACHINES "
Sealed the 18th November 1874, and dated the 3rd September 1878.
PROVISIONAL SPECIFICATION left by the said William Stobart and
William Allan at the Office of the Commissioners of Patents, with
their Petition, on the 3rd September 1878.
We, WILLIAM STOBART, of Cocken Hall, in the County of Durham,
Coalowner, and WILLIAM ALLAN, of Sunderland, in the County of
Durham, Marine Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN WEIGHING MACHINES," to be as follows:-
The object of this Invention is to furnish a weighing machine or
apparatus which shall combine within itself the essential requisites of
simplicity, portability, and a thoroughly correct indicator of weights,
and also act as a true check both on the supplyer and the supplied. It
is therefore peculiarly applicable for use on board steamships or other

page_text: vessels where coals are taken in at foreign ports; also where goods or
materials of an unknown or irregular weight are furnished and paid for
by weight.
We use a lover or spring having a certain lift or extension and com-
pression under a given weight, and from the gradations of travel due to
a given weight being applied.
We by a vertical or other ratchet working into a toothed wheel obtain
a motion corresponding to gradation of travel, which motion is imparted
to a train of wheels of fixed diameters having their axis speeds equiva-
lent to certain divisions of weight, viz., cwts., tons, &c., and on whose
axes or spindles.are index pointers which accordingly indicate by their
travel the weight applied or that has been applied during any given
period to the machine. These indices or pointers can at any time be
seen both by the supplyer and the supplied, any article weighed being
at one side or face of the machine, but on the opposite side or face of
the machine we gear another wheel (whose motion is obtained from the
slowest moving or highest registering spindle of the index side), having
on its spindle a pencil secured in a spring carrier, which in its circular
travel marks a line on a fixed card, which card is printed off into
divisions of weight, and has corresponding lines radiating from the
centre. It is therefore evident that whatever weight has been applied
to the machine, independent of said weight in its sum total being regis-
tered on the index side, the same is clearly marked by the pencil on the
card side of the machine. This card side is kept locked or otherwise
secured by the owner or his manager, who can at convenient times
ascertain correctly the actual weight of goods supplied, and therefore
check the accounts.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Stobart and William Allan in the Great
Seal Patent Office on the 2nd March 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
STOBART, of Cocken Hall, in the County of Durham, Coalowner, and
WILLIAM ALLAN, of Sunderland, in the County of Durham, Marine
Engineer, send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of September, in the year
of our Lord One thousand eight hundred and seventy-three; in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said William Stobart and William Allan, Her
special license that we, the said William Stobart and William Allan,
our executors, administrators, and assigns, or such others as we, the
said William Stobart and William Allan, 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 WEIGHING
MACHINES," upon the condition (amongst others) that we, the said
William Stobart and William Allan, our executors or administrators, by
an instrument in writing under our or their hands and seals, or under
the hand 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 performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next, and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Allan, on behalf of myself
and. the said William Stobart, 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, that is to say :-
-
The object of this Invention is to furnish a weighing machine or
apparatus which shall combine within itself the essentint requisites of
simplicity, portability, and a thioroughly correct indicator of weights,
and also act as a true check both on the supplier and the supplied. It
is therefore peculiarly applicable for use on board steam ships or other
vessels where coals are taken in at foreign ports, also where goods or
materials of an unknown or irregular weight are furnished and paid for
by weight.
We use a lever or spring having a certain lift or extension and com

page_text: We by a vertical or other ratchet working into a toothed wheel obtain
a motion corresponding to gradation of travel, which motion is imparted
to a train of wheels of fixed diameters having their axes speeds equiva-
lent to certain divisions of weight, viz., cwts., tons, &c., and on whose
axes or spindles are index pointers which accordingly indicate by their
travel the weight applied or that has been applied during any given
period to the machine. These indices or pointers can at any time be
seen both by the supplier and the supplied, any article weighed being at
one side or face of the machine, but on the opposite side or face of the
machine we gear another wheel (whose motion is obtained from the
slowest moving or highest registering spindle of the index side), having
on its spindle a pencil secured in a spring carrier, which in its circular
travel makes a line on a fixed card, which card is printed off into
divisions of weight, and has corresponding lines radiating from the
centre: It is therefore evident that whatever weight has been applied
to the machine, independent of said weight in its sum total being regis-
tered on the index side, the same is clearly marked by the pencil on the
card side of the machine. This card side is kept locked or otherwise
secured by the owner or his manager, who can at convenient times
ascertain correctly the actual weight of goods supplied, and therefore

page_text: Fod descends and passes out through the bottom of the outer casing a.
Exterior of the casing the rod h has a hook i connected to it, upon
which the goods or materials to be weighted are suspended as usual.
To the top of the cylinder f is jointed a rack k having ratchet teeth to
engage with corresponding teeth on a wheel Z. When a weight is hung
on to the hook i the rack is drawn downwards and turns the wheel 7,
but when the weight is taken off the rack is carried back to its former
position without turning the ratchet wheel. At the upper end of the
rack k is an arm k³, the weight of which serves to keep the rack against
the teeth of the ratchet wheel.
On the axis of the ratchet wheel is an index pointer m in front of a
dial at the face of the machine. It has also upon it a pinion by which
motion is imparted to a train of wheels n, o, p, each of which carries an
index pointer, as shown. From the axis of the last wheel p motion is
transmitted to an axis r, upon which is a spring arm a carrying a pencil
to mark upon a card fixed upon the inside of the removable cover plate s²,
which may be secured by a lock if desired. The card has radial- lines
marked upon it, as before stated, and the sum total of the several
weightings will be registered on the card by the pencil the same time
that it is also indicated on the several dial plates.
In order that at each weighing the weight may be at rest whilst being
weighed, and that the spring e may not be unduly compressed, the
descent of the hook i when a weight is placed upon it is controlled by
racks of ratchet teeth jointed to the rod h. These racks engage with
ratchet wheels u, which are locked and prevented from turning by worm
wheels upon them, into which gear worms w formed on an axis x, as
shown. When a load is placed upon the hook ; the racks t engaging
with the ratchet wheels u hold it up. When the load is to be weighed
the axis is turned by the hand wheel upon it, and the ratchet wheels
are thus turned in a direction to allow the racks t to descend quietly,
and by this means the load to be weighed is gradually brought to bear
upon the coiled spring e. When the load is removed from the hook the
rod which carries it is free to rise to its normal position, and is then
ready to have a fresh load to be weighed suspended to it.
23
thus described the nature of one Invention and the monna

page_text: construction of weighing machines to register continuously the total
weight of successive loads weighed by it, substantially as herein described.
In witness whereof, I, the said William Allan, have hereunto set
my hand and seal, this Twenty-eighth day of February, in the
year of our Lord One thousand eight hundred and seventy-
four.