or Whole to other Lamps.
Year: 1885

page_text: or Whole to other Lamps.
"We ISAAC BLAKE of 3 St Georges Crescent and MAJOR DAIN of 5 Summer Lane,
both of Birmingham in the County of Warwick Lamp Manufacturers do hereby
declare the nature of our Invention for IMPROVEMENTS IN RAILWAY CARRIAGE
LAMPS, APPLICABLE IN PART OR WHOLE TO OTHER LAMPS to be as follows:-
The lamps to which our improvements principally have reference and in a con-
nection with which we will describe our Invention, are Railway Carriage lamps
being that class of lamp employed in the roof, in which a fixed reflection is arranged
for throwing down the light from above.-Our aim and object being the regulating
and controlling the light in the said lainps, and also other lamps which burn or
consume fixed, or volatile oils, and as the regulating and controlling of the light
depend upon a proper system of oil supply and the arrangement or adjustment of
the wick-Our Invention will have reference specially to these matters.
We will describe our invention thus the first part being the mode of oil supply
from the resevoir or oil chamber the second part being the mode of controlling the
wick in connection with the wick tube.
In both cases we dispense with complicated mechanism, such as jointed levers,
which are costly in manufacture and so liable to disarrangement.
We construct a suitable resevoir or oil chamber so as to fit the upper part of
the lamp case, and this we divide into two unequal parts or chambers, the larger
chamber contains the oil, the smaller a valve seat at its bottom, which is opened and
closed from beneath. Communication between these two chambers, the oil chamber,
and the small chamber is effected by means of a small tube which may be termed
an outlet pipe for the oil, by the one end being open that enters the oil and
conveying it into the second or small chamber which is hermetically sealed, the oil
chamber is not so, under the second chamber we arrange a tube vertically, and down
which the oil descends, first to a chamber for receiving a float which is constructed
of metal, or other suitable material, and to which at the top is the moveable part of
the valve supported by a wire of sufficient length to reach up the said tube to
actuate with the valve seat by means of one side being redused through which the
oil flows when the lamp is burning; from the lower part of the float chamber we
affix a tubular arm horizontally which supports the burner and parts connected
therewith, and also supplies the oil to same.

page_text: To practically illustrate-When the lamp is applied to its purpose the oil flows
through the small tube, first named through the valve down the descending tube
and along to the burner; as the oil rises in the float chamber the float is lifted
thereby and the valve is closed, and the oil cannot pass, but as the oil is consumed
or burnt away the float falls the valve opens and the oil again finds its way to the
valve chamber, and so continuously by these alternate actions of the float and valve
a regulated and controlled system of flow of oil and uniformity of light is
maintained.
Our mode of controlling the light emanating from the wick is:-
To the upper part of the lamp case interioraly we affix a plate the upper parts
receive a bracket or support through this passes a spindle one end to the outside of
the lamp with a thumb and finger plate the other end having a pinion wheel; to
the lower part of the said plate is a perpendicular tube reaching down to the lower
part of burner and connected by a tubular arm horizontal; the perpendicular tube
secretes and holds in position a rack to which is geared the pinion wheel at the top
the arm forming an angle has a spindle passing through and a pinion wheel on each
end of it one geared to the rack at the bottom and the other to a rack which
carries a tube fitting the exterior of the wick tube and moving vertically.
According to the direction in which the thumb and finger plate is moved the
tube fitting the wick tube is moved, if downwards the light is increased
proportionately if upwards the light is diminished or extinguished.
Dated 2 1 100
THOMAS KENDRICK,
Agent for Applicants.

page_text: Improvements in Railway Carriage Lamps, Applicable in Part
or Whole to other Lamps.
ISAAC BLAKE of 3 St Georges Crescent and MAJOR DAIN of 5 Summer Lane
both of Birmingham in the County of Warwick, Lamp Manufacturers, do hereby
declare the nature of our said invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
The lamps to which our improvements principally have reference and in
connection with which we will describe our invention, are Railway Carriage Lamps
being that class of lamps employed in the roof in which a fixed reflection is
arranged for throwing down the light from above. Our aim and object being the
regulating and controlling the light in the said lamps, and also other lamps which
burn or consume fixed or volatile oils, and as the regulating and controlling of the
light depend upon a proper system of oil supply and the arrangement or adjustment
of the wick our invention will have reference specially to these matters.
We will describe our invention thus: The first part being the mode of oil
supply from the reservoir or oil chamber; the second part being the mode of
controlling the wick in connection with the wick tube.
In both cases we dispense with complicated mechanism such as jointed levers
which are costly in manufacture and so liable to disarrangement.
We construct a suitable reservoir or oil chamber so as to fit the upper part of the
lamp case, and this we divide into two unequal parts or chambers, the larger
chamber contains the oil, the smaller a valve seat at its bottom which is opened
and closed from beneath; communication between these two chambers, the oil
chamber and the small chamber is effected by means of a small tube which may be
termed an outlet pipe for the oil by the one end being open that enters the oil and
conveying it into the second or small chamber which is hermetically sealed, the
oil chamber is not so: under the second chamber we arrange a tube vertically,
and down which the oil descends, first to a chamber for receiving a float which is
constructed of metal or other suitable material and to which at the top is the
moveable part of the valve supported by a wire of sufficient length to reach up the
said tube to actuate with the valve seat by means of one side being reduced
through which the oil flows when the lamp is burning from the lower part of the
float chamber we affix a tubular arm horizontally which supports the burner and
parts connected therewith and also supplies the oil to same.
To practically illustrate when the lamp is applied to its purpose the oil flows
through the small tube, first named, through the valve, down the descending tube
and along to the burner-as the oil rises in the float chamber the float is lifted
thereby and the valve is closed, and the oil cannot pass, but as the oil is consumed
or burnt away the float falls, the valve opens and the oil again finds its way to
the valve chamber and so continuously by these alternate actions of the float and

page_text: valve a regulated and controlled system of flow of oil and uniformity of light is
maintained.
Our mode of controlling the light emanating from the wick is :-
To the upper part of the lamp case interioraly we affix a plate the upper parts
receive a bracket or support, through this passes a spindle, one end to the outside of
the lamp with a thumb and finger plate the other end having a pinion wheel-to
the lower part of the said plate is a perpendicular tube reaching down to the lower
part of burner and connected by a tubular arm horizontal; the perpendicular tube
secretes and holds in position a rack to which is geared the pinion wheel at the top
the arm forming an angle has a spindle passing through and a pinion wheel on each
end of it one geared to the rack at the bottom and the other to a rack which carries
a tube fitting the exterior of the wick tube and moving vertically.
According to the direction in which the thumb and finger plate is moved the
tube fitting the wick tube is moved, if downwards the light. is increased
proportionately if upwards the light is diminished or extinguished.
And in order that this our said invention may be more clearly understood we
have prepared the accompanying sheet of drawings by the aid of which we will
proceed more particularly to describe it.
Similar letters of reference denote similar parts in every figure where they occur.
Fig. 1, is a view of a railway carriage lamp with all the lower parts to which
our invention applies, in section.
Fig. 2, is a view in section of the new parts to a larger scale.
Fig. 3, is a sectional plan of the said lamp shewing two unequal chambers to a
small scale.
Fig. 4, is a sectional view of the spindle where the oil comes through.
Fig. 5, is a plan of valve seat.
Fig. 6, is a side sectional view of wick-tube apparatus on vertical stepped line as
Fig. 2.
Fig. 7, is a view of the top of rack and looking same way as Fig. 2.
The first part of our invention we will describe thus.
A, the body of the lamp is provided with the oil reservoir b, as hitherto; c, is the
reservoir or oil chamber fitting in the upper part of lamp case a¹, and divided
into two parts as shewn in Fig. 3, c¹ containing the oil and c³ the valve seat at or
near its bottom c, is supplied with oil from b, by means of the communicating
tube c³ and in turn the oil is communicated from c¹ the oil chamber to c² by means
of a second and smaller tube c¹ which we term an outlet pipe, c² the valve chamber
is hermetically closed at c while c¹ is open or uncovered, d is the vertical tube in
connection with ca down which the oil descends to the chamber e, which receives
the float e, supported by the spindle or wire e2, above the valve; this said spindle
is reduced or flattened as Fig. 4, which allows the oil to flow through and down d
to the float chamber e; in some cases we may dispense with flattening e, by
arranging a hole in the valve seat c² and shewn at e', in Figs. 1. 2. 3. 5. In all cases
the spindle or wire e', which carries the valve e passes through the valve seat c²
and cover e³, working freely but maintaining the same in a vertical position, g
is the tubular horizontal arm which supports the burner and parts connected
therewith (to be hereinafter described) and conveys the oil to the said burner.
We will now describe the second part of our invention.
i, is the plate fixed upon the lamp case a¹ with the bracket or support, through
which passes the spindle the one end having the thumb and finger plate ³ and
the other end a pinion wheel m, to the lower or under part of i, is the perpendicular
tube n, which reaches down to the lower part of burner and n¹ is the tubular
horizontal arm continuous with n, and assists g in supporting the burner and also
in secreting the rod o, which is constructed as a rack at o¹ and o2 with the second
pinion wheel m¹ as m, they are both geared respectively into o¹ and o³, m³, being on
which
one end of the spindle p, and a third pinion wheel m³, on the other end of p,
is geared to the rack piece o³, which is upon the outer tube r, in connection with
the wick tube which by the movement of the part 3, the mechanism of m, m³, m³,

page_text: in connection with o¹, 02, 0³, and r², the mode of increasing, diminishing or
extinguishing the light is effected.
We do not claim the parts taken apart or separately from each other, neither do
we confine ourselves absolutely to the shape, configuration or combination of parts
as shewn on the accompanying drawings, and described in this Specification but
hold ourselves at liberty to vary them while not departing essentially from the
principle of this our invention.
Having now particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed we declare that what
we claim is
1st The construction of the inner reservoir or chamber c, divided into two parts;
c¹ containing the oil and c², the valve chamber with valve seat, and the valve e, in
connection with e², passing through c², and c¹ provided with flattened surface as
Fig. 4 and el, the float for actuating the same, with float chamber 8, for the purpose
hereinbefore described.
2nd The construction of the plate i, with bracket i, spindle is and the thumb
and finger plate is with pinion wheels m, m', m³, geared into the rack parts o¹, 02, 0³,
for actuating the same for the purpose hereinbefore described.
3rd The general combination or arrangement of parts hereinbefore described and
illustrated the whole forming "Improvements in railway carriage lamps applicable
in part or whole to other lamps."