IMPROVEMENTS IN RAILWAY CARRIAGE LAMPS, ALSO APPLICABLE TO OTHER ANALOGOUS PURPOSES
Year: 1879

page_text: LETTERS PATENT to Henry Baynton and Edward Pilley, both of Birmingham,
in the County of Warwick, for the Invention of "IMPROVEMENTS IN RAILWAY
CARRIAGE LAMPS, ALSO APPLICABLE TO OTHER ANALOGOUS PURPOSES."
Soled the 0th March 1880 and dated the 13th September 1879.
Sealed the 9th March 1880 and dated the 13th September 1879.
PROVISIONAL SPECIFICATION left by the said Henry Baynton and Edward
Pilley at the Office of the Commissioners of Patents on the 13th September
1879.
HENRY BAYNTON and EDWARD PILLEY, both of Birmingham, in the County of
Warwick. "IMPROVEMENTS IN RAILWAY CARRIAGE LAMPS, ALSO APPLICABLE TO
OTHER ANALOGOUS PURPOSES."
This Invention relates to the construction of lamps for the burning of petroleum
and other oils for railway and other carriages, being that class of lamp employed
in the roof in which a fixed reflection is arranged for throwing down the light
from above; but it may be in part applicable to other arrangement of lamps.
The object of this our said Invention are, firstly, to simplify the construction of
such lamps, to increase their efficiency, to provide for the better ventilation, and
diminish the downward draft.
In constructing our improved lamp we adopt the ordinary body, but dispense
with the number of holes in same hitherto employed for admitting the pure air
and regulating the flame. The reservoir for containing the oil or petroleum is in
form approaching an oval, the outer edge of which is a double bevel, thereby
adminishing the shadow; the lower part of the dome of the burner we reduce in
depth, and in order to obtain the same light we bevel or throw off the bottom.
The chimney in connection with the reflector we construct with a conical break
about midway in the interior of same, this steadies the flame. At the upper
portion of the body interiorally we arrange a series of tubular rims, three or more in
number according to our requirement, but differing in their depth; the central one
is open at its base, the outer one being that nearest to the body is perforated;
these constitute or form a series of chambers for the hot air to pass out from the
The lid or cover may
lamp and also to prevent the wind from entering the same.
be designated a double box and is formed to correspond with the rims above
described; also preventing or assisting to keep out any extra pressure of draught
or wind.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Baynton and Edward Pilley in the Great Seal Patent Office
on the 12th March 1880.
"
HENRY BAYNTON and EDWARD PILLEY, both of Birmingham, in the County of
Warwick. "IMPROVEMENTS IN RAILWAY CARRIAGE LAMPS, ALSO APPLICABLE TO
OTHER ANALOGOUS PURPOSES."
This Invention relates to the construction of lamps for the burning of
petroleum and other oils for railway and other carriages, being that class of lamp
employed in the roof in which a fixed reflector is arranged for throwing down
the light from above; but it may be in part applicable to other arrangements of
lamps.
The objects of this our said Invention are, firstly, to simplify the construction of
such lamps, to increase their efficiency, to provide for the better ventilation and
diminish the downward draught.
In constructing our improved lamp we adopt the ordinary body, but dispense
with the number of holes in same, hitherto employed for admitting the pure air
and regulating the flame. The reservoir for containing the oil or petroleum is in
form approaching an oval, the outer edge of which is a double bevel, thereby
diminishing the shadow and the lower part of the dome of the burner we reduce
in depth, and in order to obtain the same light we bevel or throw off the bottom.
The chimney in connection with the reflector we construct with a conical break
about midway in the interior of same; this steadies the flame. At the upper portion
of the body interiorly we arrange a series of tubular rims, three or more in number
according to our requirement, but differing in their depth, the central one is open
at its base, the outer one being that nearest to the body is perforated; these
coustitute or form a series of chambers for the hot air to pass out from the lamp,
and also to prevent the wind from entering the same. The lid or cover may be
designated a double box, and is formed to correspond with the rims above
described, also preventing or assisting to keep out any extra pressure of draught or
wind.
And in order that this our said Invention may be properly understood we will
.now proceed to describe the same with reference to the annexed Drawings.
Fig. 1 on the accompanying Sheet of Drawings is a view in elevation of our
lamp; Fig. 2, a vertical section of the same; Fig. 3, à vertical partly sectional view
of the interior body of the lamp.
The same letters of reference indicate the same parts in the several Figures of
the Drawing.
A is the body of the lamp; A¹; the metallic flange or ring which finds its bearing
in the roof of the carriage when employed to its purpose; A² are springs for
securing the same in position; B, the upper flange or ring having a series of per-
forations (in section) around the periphery or inner lining (but not continuous)
for ventilation; b', the joint or hinge; 62, the spring catch; C is the head of the
lamp; C, the handle connected by the loops C; D, the lid or cover with the
perforated boxes d¹ and d², also for ventilation, working upon the jointed hinge d³
(Fig. 2); E is a tubular rim; F is also a rim in form corresponding to E, and into
which it is arranged but decreased in depth. These form the chambers.
In Figures 2 and 3, the interior and removable part of the lamp, G is the funnel
or chimney supported by its connection to the deflector H, having the aperture h¹,
being affixed to the outer body I; J is the break in form somewhat conical; this is
secured in the interior of the funnel G midway or approaching thereto; K is the
reservoir for containing the oil, circular and somewhat conical, K¹ differing only
from K from its form being oval with a double bevel edge; L, the dome of the
burner with bevelled base i¹; 12, the thumb screw for regulating the flame; this

page_text: "
said K is suspended or connected to I by means of the rods M passing through
apertures in H, shewn at M², and then through the loops N, which said loops are
secured to I, the upper parts of M being screwed exteriorly, the nuts O being
correspondingly screwed interiorly they may be fed thereon, affixed, or adjusted
to any desired position; in Fig. 3 the screwed nuts O are dispensed with and the
laminar springs P substituted, which said springs compress the rods M and hold in
required position; Q is the glass and Q¹ the bead for receiving the same; Fig. 3
is received and fitted as Figs. 1 and 2 by finding its bearing upon the seats indi-
cated at R.
Having now described and ascertained the nature of, this our said Invention,
and the manner in which the same is or may be performed, we would observe in
conclusion that we do not claim all the several parts of the before mentioned
Improvements in Railway Carriage Lamps, also Applicable to other Analogous
Purposes," separate and apart from each other as being of our Invention, but what
we claim as novel and original, and desire to be secured to us by the herein before
in part recited Letters Patent are,-
First. The construction and arrangement of the lid or cover with its perforated
boxes, substantially as and for the purposes herein before set forth and described.
Second. The construction and arrangement of the tubular rims constituting
chambers for the egress of the hot air and preventing the ingress of the cold air or
wind, substantially as herein before set forth and described.
Third. The construction and arrangement of the upper flange or ring with its
sectional perforations, substantially as and for the purposes herein before set forth
and described.
Fourth. The construction and arrangement of the conical break in the funnel or
chimney, substantially as herein before set forth and described.
Fifth. The construction and arrangement of the oil reservoirs and the burner
with bevelled base, and the mode of affixing the said reservoirs to the body, sub-
stantially as and for the purposes herein before set forth and described.
And, lastly. The combination of parts in the construction of railway carriage
and other lamps, substantially as and for the purposes herein before described and
set forth, or any mere modifications thereof.
In witness whereof, we, the said Henry Baynton and Edward Pilley, have
hereunto set our hands and seals, the Eleventh day of March, in the
year of our Lord One thousand eight hundred and eighty.
Witness,
THOMAS KENDRICK.
HENRY BAYNTON. (L.S.)
EDWARD PILLEY.
(L.S.)