Improvements in the Manufacture of Nitro Glycerine."
Year: 1896

page_text: 66
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Nitro Glycerine."
We, G. KYNOCH AND COMPANY LIMITED, and ALLAN THOMAS COCKING, both of
Lion Works, Witton, in the County of Warwick, Manufacturers, do hereby
declare the nature of this invention to be as follows:-
Our Invention relates to an improved method of manufacturing nitro glycerine,
and our object is to avoid the use of high towers or mounds at present required in
the nitro glycerine manufacture in order to get the requisite fall between one
house and another necessary for running the nitro glycerine from house to house.
In nitro glycerine factories as at present arranged it is necessary to provide a
considerable elevation for the nitrating house, so as to allow the various gutters
carried in shoots the proper fall of say one in fifty in passing from nitrating to
washing and final washing.
Our invention consists in dispensing with such high levels by providing
hydraulic gear for raising a containing tank within the nitrating house to a
sufficiently high level to allow its contents to flow to the next house. For this
purpose a hydraulic ram, lift, or other smoothly working mechanical lift may be
used within the nitrating house.
In carrying our invention into effect according to one arrangement we provide
a nitrating house with a nitrating tank, and after the production of the nitro
glycerine in the nitrating tank we run the liquid to a pre-washing tank attached
to a hydraulically operated platform. After pre-washng the nitro glycerine in
tbis tank we raise the tank to a higher level by a hydraulic lift, and allow the
liquid to flow from the said tank so raised into the usual lead gutter carried in a
wood shoot, and having a fall of about one in fifty. The nitro glycerine so pre-
washed is caused to flow along this gutter to the final washing and filtering house.
In this house the nitro glycerine is washed finally and filtered in the ordinary
manner, and is then dealt with to form pulp in the usual way, for making into
cordite, dynamite or any other explosive.
By our device of raising the level of the pre-wash tank by a hydraulic or other
smoothly moving lift we are enabled to dispense with the large mounds at present
used in the nitro glycerine factories.
Another part of our invention consists in a convenient arrangement of nitrating
and final washing house, so devised as to enable the several houses to be put into
inter-communication with each other in various combinations, so that the plant
can always be kept going notwithstanding stoppage for repairs of any one element
in it.
In carrying this part of our invention into effect according to one method we
arrange a nitrating house in the centre, and at each side of it we provide at the
proper distances our final washing and filtering house. At a proper distance we
provide a second nitrating house also having two final washing and filtering
houses arranged one on each side. The two nitrating houses are arranged opposite
o each other, and the four washing houses form preferably the respective corners
of a square or possibly an oblong figure. Connections are made to run the nitra

page_text: glycerine from each nitrating house to the washing and filtering houses flanking
it. Each nitrating house is also connected to the other two washing and filtering
houses by diagonal connecting gutters. Each nitrating house contains preferably
a nitrating tank or still, a pre-washing tank, a soda tank, a skimming tank, and
also the usual drowning tank suitably placed. Each final washing and filtering
house also contains the usual washing and filtering tank plant. By this arrange-
ment we are enabled to operate either of the nitrating houses with any two of the
four filtering and washing houses, or any one of these houses if desired, and by
this interchangeability we are enabled to stop any part of the plant for repairs
without involving the stoppage of nitrating and washing.
Dated this 16th day of December 1896.
MARKS & CLERK,
18, Southampton Buildings, London, W.C. and
13, Temple Street, Birmingham, Agents.
WC, G. KYNOCH & COMPANY LIMITED, and ALLAN THOMAS COCKING, both of Lion
Works, Witton, in the County of Warwick, Manufacturers, 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:-
Our invention relates to an improved method of manufacturing nitro glycerine,
and our object is to avoid the use of the high towers or mounds at present required
in the nitro glycerine manufacture in order to-get the requisite fall between one
house and another necessary for running the nitro glycerine from house to house.
In nitro glycerine factories as at present arranged, it is necessary to provide a
considerable elevation for the nitrating house, so as to allow to the various gutters
carried in shoots the proper fall of say one in fifty in passing from nitrating to
washing and from washing to final washing.
Our invention consists in dispensing with such high levels by providing
hydraulic gear for raising a containing tank within the nitrating house to a
sufficiently high, level to allow its contents to flow to the next house. For this
purpose a hydraulic ram, lift, or other smoothly working mechanical lift may be
used within the nitrating house.
Referring to the accompanying sheet of drawing, Figure 1 is a diagrammatic
view of one arrangement of the nitrating and washing houses according to our
invention. Figure 2 is a diagram of one arrangement of the nitrating and wash-
ing houses according to the second part of our invention.
In carrying our invention into effect according to one arrangement (sec
Figure 1) we provide a nitrating house A with a nitrating tank A', and after the
production of the nitro-glycerine in nitrating tank A¹, we run the liquid to a pre-
washing tank B', attached to a hydraulically operated platform. 132 in a pre-
washing house B. After prewashing the nitro-glycerine in this tank B we raise
the tank to a higher level as shown at B3 Figure 1, by a hydraulic lift, and allow
the liquid to flow from the said tank B' so raised, into the usual lead gutter
carried in a wood shoot B5, and having a fall of about one in fifty. The nitro-
glycerine so pre-washed is caused to flow along this gutter 15 to the final washing
and filtering house C. In this house the nitro-glycerine is washed finally, and
filtered in the ordinary manner, and is then dealt with to form pulp in the usual
way, for making into cordite, dynamite or any other explosive.
We prefer to use a hydraulic lift, which may be of special form as described

page_text: herein. To ensure smooth working and therefore safety we provide in addition
to the usual, main cylinder and ram two or more auxiliary cylinders B Figure 1,
having pistons or rams, which can act as a dashpot. These cylinders are controlled
by a valve which opens them to the supply on the upward stroke of the main ram
and to a limited opening to the exhaust pipe on the downward stroke of the main
ram, thus allowing only slow and steady descent of the tank on the lift, or the
auxiliary rams may be arranged to deliver water back to the accumulator under
pressure (if high pressure hydraulic lifts be used) thus doing useful work as well
as controlling the descent of the lift.
By our advice of raising the level of the pre-wash tank by a hydraulic or other
smoothly moving lift we are enabled to dispense with the large mounds at present
used in the nitro-glycerine factories.
Another part of our invention consists in a convenient arrangement of nitrat-
ing and final washing house, so devised as to enable the several houses to be put
into inter-communication with each other in various combinations, so that the
plant can always be kept going, notwithstanding stoppage for repairs of any one
element in it.
In carrying this part of our invention into effect according to one method as
illustrated in Figure 2 we arrange a nitrating house A in the centre, and at each
side of it we provide at the proper distances our final washing and filtering
houses B and C. At a proper distance we provide a second nitrating house A
also having two final washing and filtering houses B and C respectively arranged
one on each side. The two nitrating houses are arranged opposite to each other,
and the four washing houses form preferably the respective corners of a square
cr possibly an oblong figure. Connections D are made to run the niro-glycerine
from each nitrating house to the washing and filtering houses flanking it. Each
nitrating house is also connected to the other two washing and filtering houses
by diagonal connecting gutters D'. Each nitrating house contains preferably
nitrating tank or still, a prewashing tank, a soda tank, a skimming tank, and also
the usual drowning tank suitably placed. Each final washing and filtering house
also contains the usual washing and filtering tank plant. By this arrangement we
are enabled to onerate either of the nitrating houses with all or any of the four
filtering and washing houses, if desired, and by this interchangeability we are
enabled to stop any part of the plant for repairs without involving the stoppage of
nitrating and washing.
a
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is,
1st. The method of mechanically providing for the flow necessary to convey
the nitro glycerine liquors by gravity from one tank to another in the manufacture
of nitro-glycerine and similar compounds as described.
2. In nitro-glycerine manufacture the arrangement of sets of nitrating and
washing houses and tanks in such a manner that they may be interchanged
respectively as and for the purpose described.
Dated thin 15nh dave of Santamber 1807
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.