IMPROVEMENTS IN APPARATUS USED IN THE MANU- FACTURE OF GAS
Year: 1874

page_text: LETTERS PATENT to David Hulett, of 55 and 56, High Holborn, in
the County of Middlesex, and Samuel Chandler, of York Street,
London Road, Southwark, in the County of Surrey, Gas Engineers,
for the Invention of "IMPROVEMENTS IN APPARATUS USED IN THE MANU-
FACTURE OF GAS."
Sealed the 29th May 1874, and dated the 14th April 1874.
COMPLETE SPECIFICATION filed by the said David Hulett and Samuel
Chandler at the Office of the Commissioners of Patents, with their
Petition and Declaration, on the 14th April 1874, pursuant to the
9th Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, DAVID
HULETT, of 55 and 56, High Holborn, in the County of Middlesex, and
SAMUEL CHANDLER, of York Street, London Road, Southwark, in the
County of Surrey, Gas Engineers, send greeting.

page_text: the lines C on Figure 1 represent divisions or separating plates, which will.
be seen by reference to section of Figure 1 by the letter O thereon; the
reason for introducing these will also be made known further on. The
letter D shows a shaft which passes through the cylinder A, and to this
shaft are attached a series of fans, disturbers, arms, or agitators marked
E on the Drawing. The cylindrical vessel A is partially charged with
water or other liquid to the required height; G, G, are bearings or
stuffing boxes; H, a support for exterior part of shaft; I is a wheel which
is firmly fixed to the shaft D for the purpose of receiving a band which
is worked by means of steam or other
power.
The action of the apparatus is as follows:-The wheel I is caused to
revolve by means of steam or other power which causes the shaft D and
fans, disturbers, arms, or agitators E to revolve also. The result of this
motion will be understood inasmuch as the fans, disturbers, arms, or
agitators are coming constantly into contact with the fluid contained in
the cylinder A, which disturbs or spreads the liquid in all directions, and
as the gas, air, or vapour enters at the inlet, it follows that the same will
be greatly relieved from its impurities by the time it reaches and leaves
the outlet.
Our motive for introducing the partitions or divisions B, also the
division or separating plates C is simply to prevent the gas, air, or vapour
having such a free or easy means of egress as to cause an obstruction,
and thus it is made to remain a somewhat longer time in contact with
the liquid and apparatus, for this reason it is therefore proposed. But it
is not absolutely necessary that these partitions or divisions should be
introduced as will be seen by reference to Figure 2,- as much depends
upon the volume of gas, air, or vapour that is required to be passed
through the apparatus.
Figure 3 shows the fans, disturbers, arms, or agitators perforated or
plain, as preferred, placed in such a position upon the shaft to act on the

page_text: the precise details herein-before described, as the same may be varied
without departing from the nature of the said Invention; but what we do
claim as our Invention is the improved washer, scrubber, and exhauster,
arranged as and for the purposes herein described and set forth.
In witness whereof, we, the said David Hulett and Samuel
Chandler, have hereunto set our hands and seals, this Fourteenth
day of April, in the year of our Lord One thousand eight hundred
and seventy-four.
Witness,
WILLIAM VINCENT APPELTON.
DAVID HULETT.
(L.S.)
SAMUEL CHANDLER. (L.S.)