IMPROVEMENTS IN LANTERNS OR LAMPS
Year: 1884

page_text: I HENRY CULLABINE of Devonshire Street Sheffield in the County of York
Lamp Manufacturer do hereby declare the nature of my said invention for
IMPROVEMENTS IN LANTERNS OR LAMPS to be as follows:-
My invention relates to improvements in the construction of lanterns or lamps,
such as are used for lighting streets, and for other similar uses, and it consists in
the novel arrangement of the reflector, and in the method of securing the panes of
glass.
make
In the construction of an ordinary street lamp, according to my invention I fix
the reflector closely under the top part, or roof of the lamp which usually tapers
upwards to the outlet or chimney, which forms the apex. My reflector is made to
taper downwards, with an opening in the centre for the passage of the hot air, and
products of combustion, and I preferably attach a short chimney tube above the
opening, to direct the heated gases to the outlet. The object of my arrangement
of the reflector in the manner as described, is to disperse the reflected light over a
large area, instead of concentrating it about the base of the lamp. To secure the
panes of glass in a simple and efficient manner without the use of putty,
the bars of the lamp or lantern with an external rib, and having a groove.on each
side of the rib, the pane of glass resting on the outer edge of the groove, and the
edge of the glass bearing against the central rib before mentioned. The glass is
securely held in position in the following manner; near the top and in front of
the glass, a short pin inclining to the glass depends from the frame of the lamp, and
carries a ball or other shaped block which can be moved up and down the said pin
or more than one pin may be used with connected sliding blocks in place of
separate blocks. When the pane is put in its place the ball or other shaped block
(which has been raised for the purpose) on being released slides down the pin until
it wedges the glass against the frame. One corner of the bottom edge of the glass
is passed at the back of a fixed stay piece, the other corner being retained in position
by a turnover catch forming a combination of simple appliance that allows of cach
pane of glass being readily removed for cleaning or for repair.
R. F. DRURY,
Agent for the Applicant,

page_text: COMPLETE SPECIFICATION.
I HENRY CULLARINE of Devonshire Street Sheffield in the County of York
Lamp Manufacturer do hereby declare the nature of my invention for IMPROVE-
MENTS IN LANTERNS OR LAMPS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement,
that is to say :-
My invention relates to improvements in the construction of Lanterns or Lamps,
such as are used for lighting streets and open spaces, and it consists in the novel
arrangement of the reflector, and in the method of securing the panes of glass so
that they can readily be removed for cleaning, or for repairs.
And in order that my invention may be readily understood, I have illustrated
the way it is carried into effect, in the accompanying sheet of drawings, in
.which
Fig. 1, is an elevation of a lamp with the front removed, and the reflector shown
in section.
Fig. 2, shows the side, and underside of reflector.
Figs 3 & 4, show the method of securing the panes of glass,
Fig. 5, shows the section of the bars:
In constructing a street lamp according to my invention, I fix my improved
reflector closely under the roof of the lamp, which as usual, inclines upwards to the
centre, where the outlet is made for the escape of the products of combustion.
The reflector A, inclines in the opposite direction to the roof of the lamp, that is,
it tapers from its outer edge downwards from a to b. but instead of terminating in
an apex or point, a central opening B, which is preferably made of a tubular form
is there constructed as a passage for the hot air and products of combustion.
The reflector may be of a shape to suit the configuration of the lamp such as
round or octagonal, and of any suitable material such as porcelain or enamelled or
plated metal.
1
*T
(1719)
The construction of reflector disperses the reflected light over a large area instead
of concentrating it about the base of the lamp.
The second part of my invention referring to a simple method of securing the
panes of glass to the frame of the lamp is carried out as follows-
I
I make the metallic bars of a section as shown in Fig. 5-being formed of a
central rib C, and two curved ribs D, D, the position of the panes of glass being
shown at E, E, by which it will be seen that the flat of the pane rests upon the
edge of D, and the edge of the pane against the rib C.
To secure the pane of glass without the use of putty I adopt the following means,
in front of the top edge of the pane of glass, a short pin F(or more than one if
desired) depends from the frame of the lamp, G, upon which is a ball or other
shaped block H free to slide up and down the 'said pin-The pin is fixed at an
angle inclining towards the glass. When the pane is put in its place the ball or
other block-is raised, and on being released it slides down the pin until it wedges
the glass against the frame. The bottom edge of the pane is retained by a fixed
strip, or a catch or similar contrivance.

page_text: In Fig. 4, a modification of the single pin and ball is shown, being a bar of wood
or other material sliding on two pins, the pins in all cases inclining towards the
glass.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1-In Lanterns or Lamps, the use of reflectors made of any suitable material,
of an inverted conical shape, with a central opening or chimney for the passage of
the products of combustion, substantially as described and as illustrated.
2 In Lanterns or lamps the method of securing the panes of glass by means of
a sliding ball or block, substantially as described and illustrated.