Improvements in Apparatus for Generating Acetylene or other Gas Generated by the Addition of a Liquid to a Solid.
Year: 1897

page_text: Date of Application, 26th Nov., 1897
Complete Specification Left, 26th Sept., 1898-Accepted, 25th Feb.,
, 1899
Improvements in Apparatus for Generating Acetylene or other Gas
Generated by the Addition of a Liquid to a Solid.
We, THE LIVER ACETYLENE GAS COMPANY LIMITED, of 4, York Buildings, Dale
Street, Liverpool, in the County of Lancaster, Gas Manufacturers, and EVAN EVANS,
of 45, Denbigh Street, Llanrwst, in the County of Denbigh, Ironmonger, do hereby
declare the nature of this invention to be as follows:-
This invention has for its object improvements on the invention set forth in
the Provisional Specification of Evan Evans, No. 10508, dated the 27th day of
April. 1897 and has for its object a modification of the said invention. All parts
therefore which are common to the two Provisional Specifications are omitted from
the present one and this specification must be read in conjunction therefore with
the other. In this modfication the trays or containers of the carbide are preferably
cylindrical and perforated on the outside, but have a preferably imperferate tubular
stem in the centre and are threaded on to a vertical rod. This rod however is
not a necessity as outside guides would perform the same result. These trays are
all placed in a tray holder closed at the bottoni, but having a vertical channel or
tube passing up preferably to one side of the chamber. Into this channel water
can enter from the outside through a hole near the top and this water can escape
through a guarded hole or series of holes connecting this channel with the tray
chamber preferably from top to bottom but so arranged that the water entering
the hole at the top runs down to the bottom or to the level of the water in the tray
chamber instead of spurting through at once the force of the water being broken
by the dead wall of the channel. In order to lower the gasometer into the tank
and yet have a seal we form a siphon in the gasometer with its open end opening
cut into the top of the gasometer and its bend descending down nearly to the
bottom. This is carried upwards to a point above the gasometer where it is supplied
with a hole so as to allow the air to escape when lowering the gasometer into the
tank. This is sealed as soon as the water rises in the gasometer to above the height
of the open end and remains permanently sealed by the water. The carbide tray
holder is preferably attached to an inner cylinder of the gasometer by means of pins
or projections on the holder engaging with the slot in annular segments on the
gasometer. In order to remove the carbide holder without taking out the gasometer
it may be taken out through the top by having a separate portion of the gasometer
top screwed or attached to the carbide tray holder. In this arrangement the inner
cylinder of the gasometer is provided with a pipe and valve near the top projecting
into the outer cylinder the valve being so arranged that it will allow the exit of
gas, but not the entrance.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicants.

page_text: improvements in Apparatus for Generating Acetylene or other Gas
Generated by the Addition of a Liquid to a Solid.
We, THE LIVER ACETYLENE GAS COMPANY LIMITED, of 4, York Buildings, Dale
Street, Liverpool, in the County of Lancaster, Gas Manufacturers, and EVAN EVANS,
of 45, Denbigh Street, Llanrwst, in the County of Denbigh, Ironmonger, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following state-
ment:
This invention has for its object improvements on that class of generators set
forth in PatentsNos. 12788 of 1896, 20074 of 1896, 22359 of 1896, 10508
of 1897 and 26810 of 1897.
The entire apparatus is set forth here the better to understand our present im-
provements.
Referring to the drawings-
Figure is a vertical section of the generator;
Figure 2 vertical section taken at right angles to Figure 1 and with some of the
parts removed;
Figure transverse section through X X;
Figure 4 view of lid and top of internal cylinder;
Figure 5 enlarged view of top of internal cylinder:
Figure 6 transverse section of internal cylinder, and
Figure 7 transverse section of part of Figure 5;
Figure 8 a vertical section partly in elevation of the apparatus with a syphon
applied;
Figure 9 a vertical section at right angles to Figure 8 with some parts removed.
Referring to Figures 1 to 7 inclusive:-
A A are carbide trays threaded by preference on a stem B and perforated on
the outside as shown, they could however be simple trays inserted loose in the
internal cylinder but would be slightly more liable to impede the flow of the water;
C is the internal cylinder containing same as a loose fit. It is obvious that if this
internal cylinder had internal projecting ridges or guides the rod B and the tubular
stenis of the trays could be dispensed with and the trays could have imperforate
bottoms. Cylinder C is hermetically closed at the bottom but has a loose fitting
lid-at top, it is provided with a long slit D), Figure 6, at the side enclosed in a
pocket having a perforation c, Figures and 6, near the top. In this pocket I
prefer to insert a long strip E shown well in Figure having a projection at
bottom fitting the slit. By drawing this strip E up and down the slit D is kept
clear of dirt. The water thus entering at e runs down the pocket round strip E
and into cylinder C by slit D attacking the bottom tray first and as it rises each
tray above in succession. It is unable to spurt through to the upper trays owing
to the circuitous course it would have to take.
G is the gasometer: H tank surrounding same: I J guiding tubes. Tube I
allows the escape of gas through perforation into the space surrounding tube I.
thence down I to service pipe K, passing through sponge
Kon its way.
is a cock
to allow the liquid in the sponge to drain away when required.
Tube J has a valve jas set forth and claimed in E Evans Patent No. 10508
of 1897, at top which when the gasometer rises too high comes in contact with the
projections at the bottom of the surrounding space and is raised up thereby
allowing the gas to escape to waste pipe L. N is a cross strip at bottom supporting
the cylinder C and attached to a cylinder 0. This cylinder 0 could be dispensed

page_text: with, strip N being suspended from above but it is more convenient to use this
cylinder. I is a second cylinder acting as a governor. The gas enters this cylinder
through cock Q, Figure 2 from space and escapes through small perforation q.
The cock Q has a bent handle as shown in Figure 2, so arranged that it is im-
possible to unscrew and take off cover R until the cock Q is closed.
c is a handle
for withdrawing cylinder C or its cap. The cap is held on cylinder C by clips
or other device not shown. There are preferably small perforations in cylinder C
just under this cap as shown in Figure 5, but in practice the gas can escape all
right through the top of pocket and the loose fitting cap.
R is a cover held down by screw which screws through spider S held on to
the top of the cylinders by a bayonet joint, as shown in Figure 4. Parts Qq Rr
and Ss are not described in the Provisional Specification, but their mechanical
equivalent, a syphon and a gasometer to be lifted out when the carbide trays are
to be charged. In the drawings annexed the cock Q and its pipes act the part
of a syphon and the cap r is raised when the carbide trays are to be removed.
Instead of the gasometer top. for very small machines we still use the entire
gasometer made to lift out when charging and supplied with a simple syphon T
dipping down nearly to the bottom and rising up nearly to the top to let out the
air see Figures S and 9. In these figures the trays are preferably cylindrical and
perforated and are threaded onto a vertical rod 2. 3 is the tray holder closed at
the bottom and having a vertical channel 4, in which 5 is a hole arranged near
the top of the channel through which the water enters, but to prevent it at the
commencement coming in contact with any of the carbide holders or trays but
the lowest, the force of the water entering is broken by the dead wall 6 of the tray
holder and is compelled to trickle through a narrow slit which extends to the
bottom of the holder. T is the syphon and 7 a hole communicating therewith to
allow the air to escape when lowering the gasometer 8 into the tank 9, it also serves
as a seal when its end t is below the water. The carbide tray holder is preferably
attached to the inner cylinder 10 of the gasometer by means of pins or projections
on the holder engaging with a slot in annular segments on the gasometer.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what we
claim is:-
1
1. The various improvements on our before-mentioned patented inventions, sub-
stantially as herein described and illustrated and also in particular the following:-
() The method of and arrangement for supplying water to the trays of carbide
successively, substantially as described and illustrated, whereby the water cannot
spurt through and the passage is kept open;
(b) The arrangement of syphon whereby when the gasometer is lowered the
air escapes and the passage is then automatically sealed."
Dated this 23rd day of September 1898.
WM. P. THOMPSON & Co..
Patent Agents,
Of Liverpool, Manchester, Birmingham, and London.