Improvements in or appertaining to Oxygen Gas Generators.
Year: 1898

page_text: Date of Application, 25th Nov., 1898
Complete Specification Left, 24th Aug., 1899-Accepted, 30th Sept., 1899
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Oxygen Gas Generators.
We, WILLIE RILEY, of the Firm of Riley Brothers, of 55 and 57, Godwin
Street, Bradford, in the County of York, Lantern Outfitters, and ABRAM KERSHAW,
of Dorrington Street, Leeds, in the County of York, Electrical Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or appertaining to oxygen gas
generators more particularly to portable apparatus for that purpose.
For this purpose we employ a comparatively long retort preferably of cylindrical
or tubular form supported at each end on standards which for greater portability
are made to fold down when not in use. The standards are placed at each end
of a slide or guide upon which a carriage is mounted to carry the lamp or burner.
The oxygen producing mixture may be moulded and pressed into cylindrical
or other suitably shaped cartridges which are placed in the retort a certain
distance apart. In use the lamp or burner is placed underneath the first
cartridge and when the generation of gas from that cartridge ceases the lamp or
burner is moved on to the next cartridge. The cartridges may be held the
required distance apart by any removable spacing devices having apertures at
the required distance apart to receive the cartridges and retain them in the
proper relative position within the retort preferably out of contact with the
bottom.
The lamp or burner may be moved automatically from cartridge to cartridge,
by arranging the carriage upon which it is mounted to be operated by the rising
and falling of the gas holder. For this purpose two levers may be employed
coupled together and the end of one coupled to the slide or guide and the end
of the other to a bar or rod. The levers work on the toggle principle and when
the ends pivoted together fall down the bar or rod is moved in one direction and
when such ends are forced up the bar is moved in the reverse direction. A pawl
is provided on the carriage to engage notches in the bar and move the carriage
the required distance when the bar moves in one direction. A second pawl is
provided on the carriage to engage notches on the guide to prevent the carriage
moving in the reverse direction without the pawl is disengaged. A suitable
spring or springs press the pawls into the notches and ready means is provided
for disengaging the pawls when it is required to move the carriage back. A
spring or weight may be provided to press the ends of the toggle levers down
and the lamp or burner may be moved by the downward movement of the levers.
The gas holder may be contained in a box having a divided lid the halves of
which may be arranged to turn up and support the said slide or guide and also
act as guides for the container.
Other means may be employed to automatically move the lamp or burner by
the rise and fall of the gas holder instead of the arrangement described as for
instance an intermittently operated chain which may be endless or an inter-
mittently operated screw.
20
1
1000

page_text: Improvements in or appertaining to Oxygen Gas Generators.
We, WILLIE RILEY, of the Firm of Riley Brothers, of 55 and 57, Godwin
Street, Bradford, in the County of York, Lantern Outfitters, and ABRAM KERSILAW,
of Dorrington Street, Leeds, in the County of York, Electrical Engineer, 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:
This invention relates to 'improvements in or appertaining to oxygen gas
generators more particularly to portable apparatus for that purpose, and its
object is to provide a generator that is automatically regulated by the holder.
To fully describe our invention reference is made to the accompanying sheets
of drawings forming a part of this specification. in which similar letters of
reference indicate corresponding parts in each of the figures.
Figure 1, represents an elevation of our improved apparatus.
Figure 2, is a plan view of the generator and the mechanism for moving the
lamp.
Figure 3, is a longitudinal section.
Figure 4, is a cross section of the same, and
Figure 5, is a view of a detail on a larger scale hereinafter referred to.
The generator A is charged with a number of cartridges of cylindrical blocks
of " oxygen mixture" which when heated evolve oxygen and these blocks are
held a suitable distance apart in any convenient manner. The generator is sup-
ported upon the standards A2 hinged to the bottom A³ of the box or case A' so that
they can be turned down against the bottom when not in use. The generator is
connected to the gas washing vessel B by the flexible tube A5.
The lamp D is mounted upon the carriage D³ sliding upon the guides D³ and D'
and the pawls D5 and 16 are pivoted to the underside of the carriage upon the
pins D and D. A spiral spring D stretched between projections E and upon
the pawls keeps the pawl DS pressed against the slide F made with notches F and
the pawl 16 against the inner edge of the guide D3 made with notches E.
knob E is fixed to the pawl D by which it can be moved to disengage it from
the notches F2, and this pawl is provided with a heel piece E5 which when moved
in this way engages the projection E6 on the pawl D and also disengages the
latter from the notches E3 leaving the carriage free to be moved from one end
to the other of the guides D³ and D as clearly shown in Figure 5 which is a plan
view of the carriage and certain other parts.
We prefer to employ the gas holder described in our previous application for
Letters Patent No. 18770 of 1898 and when the cylinder C³ rises to the position
represented by the broken lines C Figure 1 the bridge piece C across the top
engages the anti-friction roller H pivoted at the junction of the toggle levers
Hand H. The other end of the lever He is pivoted to the underside of the
bottom A3 of the box A', and the lever H3 is pivoted to a projection H on the
underside of F projecting through a slot H5 in the bottom. A. The cylinder C
continuing its upward movement lifts the toggle levers H2 and H³ thus moving
the slide in the direction of the arrow Figure 3. As the cylinder C descends
the spring G stretched between the pin G2 in the bottom A3 of the box and the
projection H on the slide F pulls the slide in the opposite direction to that in
which the said arrow is pointing and one of the notches 12 engages the pawi D5
and draws the carriage along with it a sufficient distance to carry the lamp be-
neath the next cartridge in the generator. This is repeated each time the
cylinder C² rises.

page_text: 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:
1
1. The combination with the toggle levers H³ and H3 of the slide F and the
lamp carriage D2, substantially as herein shown and described.
2. The combination with the toggle levers H2 and H³ of the slide F and the
lamp carriage D' fitted with the pawls D5 and De, substantially as herein shown
and described.
3. An automatic oxygen generator constructed, arranged and operating sub-
stantially as herein shown and described.
Dated this Otul dov of duonst 1800
DRACUP & NOWELL,
Patent Agents, Bradford.