A Draught Regulator for Street and other Lamps and Lanterns.
Year: 1896

page_text: Date of Application, 30th Sept., 1896
Complete Specification Left 1st. June 1897-Accepted, 24th July, 1897
PROVISIONAL SPECIFICATION.
A Draught Regulator for Street and other Lamps and Lanterns.
CHARLES HENRY WORSNOP 6 Carlton Place Halifax Lamp Manufacturer do hereby
declare the nature of this invention to be as follows:-
This invention relates to an improved method of regulating the draught in all
Lamps, or Lanterns used outside or in any place where a considerable wind or strong
current of air exists, but it is particularly applicable to that kind of outside lamp,
made in the same pattern as the Electric Arc Lamp, but used for Incandescent Gas
Burners.
The lanterns of this class in use at present, are arranged for the inlet and outlet to
be at the top of the lantern, the result being, that in strong wind, a back draught is
caused, and the light extinguished.
The method I adopt, is to make a hole in the bottom of the globe, and fit it with
a brass cup. In the sides of the cup, I inake a number of holes about half an inch in
diameter, inside this cup another cup is fitted, which is perforated with very small
holes, except in the places where it fits over the holes in the outside cup, in
which places holes of a similar size are made.
The inside cup works on a rod in the centre of the outer cup, and can be moved
round by a small knob that comes through the outer cup, so that in a strong wind,
the perforated part may be brought over the holes, and check the draught. For the
better comprehension of my invention, I will refer to the accompanying sheet
of drawings.
Fig. 1 represents the lower part of the lamp with the brass cup attached, R is
rod round which the inside perforated cup revolves, K is the knob by which it
is worked.
Fig. 2 shows the bottom of the cup outside, with the holes of both cups opposite,
as used in a protected position, and in mild weather. S is the screw, which holds the
cup and attaches it to the rod. K is the knob to work the inside cup, G is the
groove in which the knob works.
Fig. 3 shows the bottom of the cup outside, with the perforated parts of the inside
cup drawn over the holes of the outer cup, as used in a strong draught or windy
weather.
September 30th, 1896.
A Draught Regulator for Street and other Lamps and Lanterns.
CHARLES HENRY WORSNOP 6 Carlton Place, Halifax, Lamp Manufacturer, de
hereby declare the nature of this invention and in what manner the same is to be
[Price 8d.]

page_text: performed, to be particularly described and ascertained in and by the following
statement:--
This invention relates to an improved method of regulating the draught in all
lamps or lanterns used outside or in any place where a considerable wind or strong
current of air exists, and is particularly applicable to that kind of outside lamp made in the
same pattern as Electric Arc Lamps but used for Incandescent Gas burners. The
lanterns of this class in use at present are arranged for the inlet and outlet to come
in at the top of the lantern, the result being in strong wind a back draught is caused
and the light is extinguished.
For the better comprehension of my invention I will refer you to the drawing sent
with my Provisional Specification No. 21624, 30th Sep., 1896.
The method I adopt is to make a hole in the bottom of the globe and fit it with a
metal cup or a glass cup with a metal border. In the sides of the cup I make a
number of holes, about half an inch diameter. Inside this cup another cup is fitted
which is perforated with very small holes, except in the places where it fits over the
holes in the outside cup, in which places holes of a similar size are made. The
inside cup works on a rod in the centre of the outer cup and can be moved round by
a small knob that comes through the outer cup, so that in a strong wind the
perforated parts can be brought over the holes and check the draught.
Fig. 1. represents the lower part of the lamp with the brass cup attached. R is the
rod round which the inside perforated cup works. K is the knob by which it
is worked.
Fig. 2. shews the bottom of the cup outside with the holes of both cups opposite as
used in a protected position and in mild weather. S is the screw which holds the
cup and attaches it to the rod. K is the knob to work the inside cup, and G is
the groove in which the knob works.
Fig. 3. shows the bottom of the cup outside with the perforated part of the inside
cup drawn over the holes as used in a strong draught or in windy weather.
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 :---
Firstly. The attachment of a metal or glass cup to the bottom of a large globe
used for street lamps containing holes ensuring a regular and continuous draught
through the lamp or lantern.
Secondly. An inner fitting shaped as a cup and working round centre of the outer
cup, or a ring working round the border of the inner cup perforated with holes of
different sizes so as to regulate the draught.
dane of Max 1907