Improved Acetylene Gas Generator, Purifier, and Holder.
Year: 1896

page_text: Date of Application, 13th Oct., 1896
Complete Specification Left, 18th Nov., 1896-Accepted, 9th Jan., 1897
PROVISIONAL SPECIFICATION.
Improved Acetylene Gas Generator, Purifier, and Holder.
ALEXANDER GEORGE SMITH Optician 23 and 25 St. Nicholas Street Aberdeen
do hereby declare the nature of this invention to be as follows:-
The generator consists of an outer vessel to contain the water, with a vessel of
less diameter inverted inside it. Inside the inverted vessel or gas holder is the.
calcium carbide holder, a tube with two projecting arms & perforated with holes.
The gas holder has inside an arrangement of wire which furnishes guides for the
arms on the carbide holder which is slipped between the guides as far as it will go
given a quarter turn & allowed to rest on the ledges provided by the wire-
arrangement & is prevented from slipping off by a projecting piece of wire on each
ledge.
Further a pipe is taken up through the water in the outer vessel, from a chamber
at the bottom of the generator, the gas is cooled & purified passing down this pipe
& the water vapour condensed the chamber collects the water & prevents it.
collecting in the supply pipe & causing the gas to "bump."
Dated this 23rd day of October 1896.
ALEXANDER GEORGE SMITH Оptician 23 and 25 St. Nicholas Street Aberdeen,.
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 :-
The generator consists of an outer vessel A for water, inside is an inverted
vessel B for gas two quadrants of plate or wire C are fixed near the top of the
gas holder & some distance below are fixed other two quadrants, these are
connected by means of wires D at the inside corners. The holder E for calcium
carbide is a perforated tube with two wires F projecting from the sides this is
slipped up between the quadrants until the projecting wires are above the top.
pair of quadrants, when by giving the holder a quarter turn the projecting wires
rest upon the quadrants & the holder is held in position, projections are provided
on the top pair of quadrants so that the holder can not slip off.
An upright pipe G is fixed in the water vessel to lead off the gas, this is
connected by an angled pipe to a tube H fixed on the side of the generator at the
foot of this tube is a tap & a few inches up a perforated plate I, at the top of the
tube is a screw on top with a tap soldered in.
This tube, above the perforated plate is filled with broken pumice stone or other
purifying material.

page_text: The Carbide holder is filled & slipped into position the 'outer vessel is filled
nearly to the top with water & the gas holder inserted, on opening the tap at
the top of the purifier, air is first expelled, until the calcium carbide comes in
contact with the water, owing to the gas holder sinking, as the gas is given off
the gas holder rises drawing the calcium carbide out of the water.
The gas passing down the pipe through the water is cooled, thus condensing any
moisture given off, this collects at the bottom of the purifier & can be drawn off by
means of the tap, the gas tap at the top is connected by means of metal or rubber
tubing to proper burners.
Having now particularly described & ascertained the nature of my said
invention & in what manner the same is to be performed 1 declare that what I
claim is :-
(1.) The means of holding the calcium carbide in the gas holder.
(2.) The combined condenser & purifier provided by means of the upright pipe
& the tube at the side.