RALDIC
Year: 1892

page_text: Date of Application, 15th Nov., 1892-Accepted, 31st Dec., 189.?
ODRALDICATION
In this invention I construct a case either such as a, or a case of other preferred
form; I place transversely within and preferably near the bottom of said case, a
metallic tube and valve carrier b.
I connect the tube c to the upper portion and the tube d to the lower portion of
said carrier.
I attach a diaphragm e to the lower end of the tube d, said diaphragm being
affixed within a short distance of the bottom of the case a. I pack the space a¹
within the case a with saturating material that is composed of woollen or other
absorbent substance charged with light petroleums, ether, or other like fluid
through which to pass oxygen gas, said oxygen gas thereby becoming saturated
and producing an inflammable vapour as in the manner ordinarily obtained.
I place at one side of aforesaid valve carrier b a screwed valve or connection f
by which gas is conveyed from the oxygen cylinder to the passages y and h.
In order to permit the gas to enter the passage g for the purpose of passing
through the saturating material the valve is opened by unscrewing the plug k
which regulates the supply, when the gas enters the passage g', is conveyed down
the tube d, passing out at the bottom through the diaphragin e and by these means
is distributed through the herein before described saturating material which is
packed in such a manner as to permit the gas to circulate equally through all parts
of said material without collecting in any quantity at any one place.
The gas then passes upwards through said material when the saturated gas enters
the tube c and descends into the passage from whence it is conveyed through the
passage m to the jet (.
In order to afford a supply of pure oxygen that may be required to mix with and
modify the effect of the saturation in the production of the inflammable gas
previous to emission from the jet f, the valve Fig. 2 is opened by unscrewing the
plug when pure oxygen will enter the passage 1, is conveyed along the
passage m Fig. 1. formed in the elbow where it mixes with the saturated gas
prior to emission from the jet t. The quantity of pure oxygen thus supplied is
regulated by the screwed plug h².
When it is required to saturate the oxygen through compression I close the
passage m more or less by means of the valve v'.
The lime employed may be either cylindrical as shown in Fig. 1 or of a disc
form.
When a cylindrical form of lime is employed I attach a bracket p in a convenient

page_text: position on the case a and insert within said bracket a screwed spindle n, that is
capable of being raised or lowered and also revolved by bevel gearing o or other
like means.
I place the limer on the upper portion of the spindle n and resting on a collar n¹.
The aforesaid bevel or other gearing may be actuated by a rod o' extending to a
convenient position on the opposite side of the case a which when turned will cause
the lime to revolve and at the same time to be raised or lowered by means of the
screwed portion of the spindle n.
The relative position of the lime r, with the jet t, may be regulated by the
pinion which gears into the rack u formed on the underside of the bracket p by
which said bracket may be moved along the slide p'.
The case a may be protected from excess of heat from the lime by the shield to
which is attached to the bracket p and may be either flat or of a semicircular form,
and may be hinged at the top to retain more heat if required.
When a disc of lime is employed I attach said lime to the case a in the manner
shown in Fig. 6.
The lime may be placed at any required height on the case by sliding the
bracket p represented in Fig. 6 either up or down to the position required where it
is secured by the set screw p².
The limer may be caused to advance towards or recede from the jet t by means
of the studs p which slide within the guides p*; rotary motion is given to the disc
by means of the pinion which gears into the toothed wheel p that is attached to
the case p' holding the lime.
In a modification of my invention I form the tube and valve carrier as shown
in section in Fig. 4, which represents the inlet end of said carrier formed with a
screwed plug to which a lever 2 is attached for the purpose of opening or
closing said inlet.
I pass a screwed valve through the plug f said valve having a passage f³ formed
therein through which the gas enters, passing through the passage ginto the
tube d from whence it circulates through the case a as herein previously described,
entering the passage from the tube c and passing on to the jet t. Pure oxygen is
admitted when required by opening the screwed valve f*, by means of the lever f
when the gas is conducted along the groove f³ to the passage m, being mixed with
the inflammable vapour in its transit to the jet t.
17
In another modification shown in Fig. 5, I place a tap or cock that may be
turned so as to admit either oxygen to be passed through the saturating material,
or pure oxygen to be passed to the jet, or both in certain proportions said tap
having an opening in the plug of suitable size to come opposite both the passages
and at the same time, or one of said passages may be closed and the other
remaining open according to the position in which the tap is turned.
The case a may be charged by the removal of the screwed plug a² when a tube
such as is represented in Fig. 3 is placed in the hole as thereby closing temporarily
the tube c and preventing any of the fluid entering therein, said fluid passing into
the case a through the holes at.
When additional jets are required either horizontally or vertically, I form a boss
on either or both sides of the elbow 8 in which is the gas passage m and connect
thereto pipes such as in Fig. 7 to which jets are attached in any position
required.
For the purpose of revolving the lime at times when personal supervision is not
convenient, I attach clockwork mechanism consisting of a spring contained in a
drum with ordinary clockwork gearing, that may be connected either in the
manner shown in Fig. 8 or in other preferred position.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is-
In apparatus that is employed, for the production of lime light for use either in

page_text: single optical lanterns, side by side, bi-unial and triple lanterns, or for internal or
external illumination.
1st. The use of a metallic tube and valve carrier such as with the several gas
passages contained therein in combination with tubes such as d and c and a
diaphragm such as e for the purpose and in the manner substantially as herein
before described.
2nd. In combination with a cylindrical lime, the use of a bracket carrying said
lime that may be adjusted in a position relatively with the jet by means of a rack
and a pinion, substantially as herein before described.
3rd. In combination with cylindrical lime the use of a shield that may be
either flat or of a semicircular form and may be hinged at the top for the purpose
and in the manner substantially as herein before described.
4th. In combination with a cylindrical or other form of lime, the use of clock-
work mechanism for actuating said lime during the process of illumination in the
manner substantially as herein before described.
5th. The application of a single cock valve such as vl in Fig. 1 for the purpose
and in the manner substantially as herein before described.
6th. The application of pipes such as
Fig. 7, for obtaining additional jets
from one lamp in the manner substantially as herein before described.
Dated this 14th day of November 1892.
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester, Agent for Applicant.