IMPROVEMENTS IN VESSELS FOR CONVEYING OR STORING CORROSIVE LIQUIDS
Year: 1876

page_text: LETTERS PATENT to John Boyle Lindsay, of Irvine, in the County of Ayr,
North Britain, Manufacturing Chemist, for the Invention of "IMPROVEMENTS
IN VESSELS FOR CONVEYING OR STORING CORROSIVE LIQUIDS."
Sealed the 27th April 1877, and dated the 30th October 1876.
PROVISIONAL SPECIFICATION left by the said John Boyle Lindsay at
the Office of the Commissioners of Patents on the 30th October 1876.
JOHN BOYLE LINDSAY, of Irvine, in the County of Ayr, North Britain, Manu-
facturing Chemist. IMPROVEMENTS IN VESSELS FOR CONVEYING OR STORING
CORROSIVE LIQUIDS."
This Invention relates to the constructing and fitting of vessels for conveying or
storing corrosive liquids in an improved manner, and so as to avoid the incon-
venience, expence, and danger attending the use of large glass or earthenware
vessels, such as the carboys commonly employed for conveying sulphuric acid.
In carrying out the Invention a wooden cask is employed, and may be con-
veniently of a size to contain as much as from ten to fourteen of the ordinary car-
boys. The cask which is intended to be always set on end (at least when filled) is
placed in an iron basket fitted with eyes for crane hooks, and is lined with lead or
with rubber, or gutta percha or any suitable compound thereof. The upper end or
cover also lined with lead, rubber, or gutta percha, is screwed down (with a packing
strip of rubber round the edge) by means of iron stringers hooking to the bottoms
of the staves, their upper screwed ends being passed through holes in the arms of an
iron cross on the cover, and secured by screw nuts.
For filling the vessel an inlet is provided in the cover, and is closed by a cap
secured by screws and packed with a rubber washer.
For drawing off the contents of the vessel a stop-cock is fitted near the bottom,
with the body inside, and with the nozzle projecting to only a slight distance out-
side. Risk of injury to the stop-cock is thus avoided, and the nozzle itself may be
protected by a movable iron plate or strap. The plug of the stop-cock is moved by
means of a lead covered iron rod passing up inside the vessel to a packed opening in
the cover.
This improved vessel is not liable to breakage and consequent loss of contents
and damage by the corrosive liquids; and these advantages, added to that of their

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said John Boyle Lindsay in the Great Seal Patent Office on the 30th April
1877.
JOHN BOYLE LINDSAY, of Irvine, in the County of Ayr, North Britain, Manu-
facturing Chemist. "IMPROVEMENTS IN VESSELS FOR CONVEYING OR STORING
CORROSIVE LIQUIDS."
My said Invention relates to the constructing and fitting of vessels for conveying
or storing corrosive liquids in an improved manner, and so as to avoid the incon-
venience, expense, and danger attending the use of large glass or earthenware vessels
such as the carboys commonly employed for conveying sulphuric acid.
In carrying out my said Invention I employ a wooden cask, lined with lead, or
rubber, or gutta percha, or any suitable compound thereof, and placed in an iron
basket fitted with eyes for crane hooks. The cask is provided with a suitable close
fitting cover, and with an inlet and an outlet, the latter having a stop-cock which is
situated inside the cask.
This improved vessel is not liable to breakage and consequent loss of contents
and damage by the corrosive liquids; and these advantages, added to that of their
being fewer packages required for a given quantity, will allow of the liquid being
conveyed at lower rates than heretofore.
And in order that my said Invention and the manner of performing the same may
be properly understood, I hereunto append a Sheet of explanatory Drawings to be
herein-after referred to and representing my improved vessel. In these Drawings
the same reference numerals are used to mark the same or like parts wherever they
are repeated.
Figures 1, 2, and 3, on the accompanying Sheet of Drawings, are respectively a
plan, an elevation, and a vertical section of my improved vessel. Figure 4 is a
horizontal section, and Figure 5 an elevation showing the outlet stop-cock. An
ordinary iron hooped wooden cask, 6, is employed, and may be conveniently made of a
size to contain as much as from ten to fourteen of the ordinary carboys. The cask
which is intended to be always set on end when in use, is enclosed in an iron basket 7
fitted with eyes 8 for crane hooks. The interior of the wooden cask 6 is lined with
lead, or rubber, or gutta percha, or any suitable compound thereof, as shown in
Figure 3, by a strong line. The upper end or cover 9, also lined like the cask 6, is
held down by means of iron stringers 10 hooking to the bottom of the staves of the
cask 6, their upper screwed ends being passed through holes in the arms of an iron
cross 11 on the cover and secured by screw nuts. A packing strip of rubber or
other suitable compressible material is inserted round the edges of the cover 9 to
prevent leakage.
For filling the vessel an inlet nozzle 12 is provided in the cover 9, and is closed
by a cap 13 packed with a rubber washer and secured by screws.
For drawing off the contents of the vessel a stop-cock 14 made of lead or other
suitable material may be fitted inside near the bottom of the cask 6, with its nozzle
projecting outside to only a short distance. The plug of the stop-cock 14 is moved
by means of an iron rod 15 covered with lead, and passing up inside the vessel and
through a stuffing box 16 in the cover 9. By fitting the stop-cock 14 inside the
vessel in this way risk of injury to it is avoided, and the nozzle is further protected
by a movable iron plate or strap 17 hinged to the cask 6. The rod 15 of the stop-
cock 14 has a collar formed on it near its upper end, and a ring of rubber which is
screwed down on this collar in the stuffing box 16, serves to keep the plug of the
stop-cock always down in its seat. In some cases however a separate outlet may
be dispensed with, and the contents withdrawn by a siphon or pump.

page_text: Having thus particularly described my said Invention, and the manner of per-
forming the same, I have to state that I do not restrict myself to the precise details
herein described or delineated, but that what I believe to be novel and original
and claim as the Invention secured to me by the herein-before in part recited Letters
Patent is,--
1. The lining of a cask, the fixing of the cover, and the providing of it with
an iron basket, substantially in the manner and for the purposes herein-before
described.
2. The providing of a vessel for conveying or storing corrosive liquids with an
outlet stop-cock fitted inside, substantially as herein-before described.
In witness whereof, I, the said John Boyle Lindsay, have hereunto set my hand
and seal, this Twenty-seventh day of April, in the year of our Lord, One
thousand eight hundred and seventy-seven.
Witness,
EDMUND HUNT,
Patent Agent,
Glasgow.
JNO. B. LINDSAY. (L.S.)