Improvements in or Applicable to Lamps or Lanterns.
Year: 1887

page_text: Date of Application, 11th July, 1887
Complete Left, 11th Apr., 1888
Complete Accepted, 11th May, 1888
PROVISIONAL SPECIFICATION.
Improvements in or Applicable to Lamps or Lanterns.
I, CORNELIUS CRASTIN, of the firm of Crastin and Dunaway, Engineers, of
185 Hornsey Road, in the County of Middlesex, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improved means for closing or partially closing the
openings in the bottoms of lamps or lanterns through which they are usually lighted.
For this purpose I close such openings with suitable flexible material such as
vulcanized india rubber which I cut in a suitablo manner so as to allow of a torch or
other apparatus used in the lighting of lamps to be passed through the same and to
be withdrawn therefrom, the material after the withdrawal of the torch automatically
resuming its normal position and closing or partially closing the opening in the
lamp.
The said flexible material may also be provided with openings to serve as air
passages.
ALL
1
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: I, CORNELIUS CRASTIN, of the firm of Crastin and Dunnaway, Engineers, of
185, Hornsey Road, in the County of Middlesex, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
This invention relates to improved means for closing or partially closing the
openings in the bottoms of lamps or lanterns through which they are usually lighted.
For this purpose I close such openings with suitable flexible material such as
vulcanized india rubber which I cut in a suitable manner so as to allow of a torch or
other apparatus used in the lighting of lamps to be passed through the same and to
be withdrawn therefrom, the material after the withdrawal of the torch automatically
resuming its normal position and closing or partially closing the opening in the
lamp.
The said flexible material may also be provided with openings to serve as air
passages.
A suitable guide is sometimes provided for the torch.
In the accompanying drawing
Figure 1 is a vertical section of the lower part of a lamp or lantern with my
improvements applied thereto.
Figure 2 is a plan of the underside of the saiti lamp or lantern.
Similar letters in both the figures indicate similar parts.
a, a are pieces of flexible material such as india rubber which I fix over the usual
opening in the bottom of the lamp or lantern through which a torch or other apparatus
is introduced to light the lamp.
When a torch b is passed through the said opening the flexible pieces a, a, yield
and assume the position shown by the dotted lines in figure 1 and after the withdrawal
of the torch the said pieces resume their normal position shown by the full lines in
figure 1, thus closing the opening in the lamp.
Although in the drawing 1 have shown, by way of example, the opening covered
with two pieces of material forming a double flap it will be obvious that the said
material can be arranged so as to form a single flap. Also in the case of circular
and other shaped lamps or lanterns the material can be conveniently cut so as to
form segmental flaps or the material can be arranged or cut in any other suitable
manner.
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 I
claim is :-
Providing the openings of lamps or lanterns through which they are lighted with
flexible flaps or covers as and for the purpose described.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.