Improvements in Paper Making Machines.
Year: 1892

page_text: Date of Application, 19th Oct., 1892
Complete Specification Left, 19th July, 1893-Accepted, 16th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Paper Making Machines.
I, GORDON M'NEILL of Balerno, Midlothian, North Britain, Paper Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in paper making machines.
The object of my said invention is to obviate thicks and thins as no matter how
the consistency or density of the stuff in the chest may alter, the weight of fibre
let off to the paper machine is always the same, keeping the paper regular at the
desired weight.
In the carrying out of my invention I employ a regulator which consists of an
open cylinder with two outlets at the top and one inlet at the bottom. Inside the
cylinder there is a float which is attached to a lever, which in its turn is attached
to a sluice which is fitted into one of the outlets. There are also suitable weights
which can be added onto the float to keep it at its right level.
The action of the appliance is as follows. The stuff cock at the inlet of the
regulator is opened and allows more stuff to flow up through the cylinder than is
required for the paper to be made. The surplus is conveyed back to the stuff
chest by means of the other outlet. As the stuff passes through the cylinder the
float is raised and kept in suspension, the float being kept at whatever level is
required, by the weights which can be added to it. The float being attached to one
end of the lever and the sluice in the outlet to the paper machine being attached to
the other end of the lever-as the float rises the sluice will close and as it sinks
the sluice will open. Therefore if the stuff should get thick or heavy the float rises
and the sluice is closed in proportion. If the stuff should get thin or light the
float will sink which will open the sluice and pass an increased volume, but always
passing the same weight of fibre per hour.
Deted the 18th dex of October 1899
JOHNSONS,
115, St. Vincent Street, Glasgow, Petitioner's Agents.
COMPLETE SPECIFICATION.
Improvements in Paper Making Machines.
I, GORDON MCNEILL late of Balerno, in the County of Midlothian, North
Britain, but now of Ballyclare Paper Mills near Belfast, Ireland, Paper Manu-
facturer, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention relates to improvements in paper making machines, and has for
its object to obviate thicks and thins; by my improvements no matter how the
consistency or density of the stuff in the chest may alter, the weight of fibre let
off to the paper machine is always the same, thus keeping the paper regular at the
desired weight.
In carrying out my said invention as illustrated in sectional elevation Figure 1,
elevation Figure 2, and plan Figure 3, of the accompanying drawings, I employ an
open cylinder A which is provided with two outlets B, C, near the top, and one
inlet D at the bottom as shown, so as to permit of the stuff being passed through
the regulator to the machine by the outlet B, and the overflow passed back to stuff
chests by the outlet C which is arranged higher up than the outlet B as shown.
Inside the said cylinder I mount a float E preferably composed of a hollow metal

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casing having a central spindle e. which is guided at its lower end by means of a
bridge bracket el, as shown more particularly in Figure 1, and at its top end by
means of a saddle bracket e² as shown. The said float E is attached to a lever F,
preferably as shown, that is to say, the top end of the spindle e is screwed and is fitted
into a screwed nut f, suitably mounted in the one end of the lever F, the other
end of which is also provided with a screwed nut in which works the screwed
end g¹ of the spindle g of the sluice G which is suitably mounted in the outlet B so
as to regulate the flow of stuff to the machine.
The float E is adjusted and kept at its proper level in the stuff by means of
suitable weights which are placed on or taken off the platform e³ according to the
consistency or density of the stuff passing through the regulator. Also if desired
the float E and sluice G may be adjusted relatively to each other by means of the
screwed spindles e and g, and nuts f and f¹. The said adjustment being assisted
by means of the sliding bracket H which acts as a fulcrum for the lever F and
may be adjusted as desired by means of the hand screw H'.
The whole arrangement thus forms an apparatus in which, on the float rising,
owing to the stuff becoming thick or heavy, the sluice is proportionately closed,
and when the stuff becomes thin or light the float will fall and the sluice will be
proportionately opened so as to always pass the same weight of stuff to the machine
per hour.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In paper making, the regulating appliance in which the stuff acts upon a
float and so regulates the flow of stuff to the paper making machine, substantially
as hereinbefore described and shown in the accompanying drawings.
2nd. The general arrangement, construction and combination of the various
parts constituting my improvements in paper making machines, all substantially as
and for the purposes hereinhefore described and shown in the accompanying
drawings.
Dated this 18th day of July 1803
JOHNSONS,
115, St. Vincent Street, Glasgow, Applicant's Agents.