Certain Improvements in Fume Dispersing Bells for Gas and Oil Lamps and Lights.
Year: 1895

page_text: Date of Application, 9th Feb.,
1895
Complete Specification Left, 11th Nov., 1895-Accepted, 14th Dec., 1895
PROVISIONAL SPECIFICATION.
Certain Improvements in Fume Dispersing Bells for Gas and Oil
Lamps and Lights.
I, WALTER JONATHAN CHESTERTON, of Lichfield Street, Walsall, Gas Fitting
Manufacturer, do hereby declare the nature of this invention to be as follows:
This invention has reference to fume dispersing bells commonly known as
"perdifumes" for gas and oil lamps and lights. The said perdifumes are inverted
bell like shades of metal glass or other suitable material usually suspended over
pendant gas and oil lamps and lights to disperse the smoke and to some extent
prevent the upper metal part of the fitting which is immediately over the light
being overheated. My invention is more particularly applicable to those perdifumes
gas light. From this
which are used with what is known as the "incandescent
light there is little or no smoke but there is a considerable amount of heat and it is
well known that the perdifumes and the upper part of the gas fitting by which
they are suspended if made of bright metal very soon become discoloured by
the heat.
"
The object of my invention is to so construct the said perdifumes that the heated
air will be caused to pass through the perdifume and be directed away from the
upper part of the fitting.
In carrying out my invention I provide in the upper part of the inverted bell
shaped perditume one or more outwardly and upwardly directed short pipes tubes or
tubular outlets of sufficient length to carry the heated air from the perdifume
outside the upper part of the pendant gas fitting. Thus when the gas is lighted
the heated air will pass through the perdifume and out through the tubular like
aperture or tubular like apertures and be dispersed about the room instead of
overheating the gas fitting. Moreover by the air passing through the perdifume
instead of collecting inside the same the latter is prevented from getting so hot as
do the ordinary perdifumes.
Dated this 8th day of February 1895
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
Certain Improvements in Fume Dispersing Bells for Gas and Oil
Lamps and Lights.
I, WALTER JONATHAN CHESTERTON, of Lichfield Street, Walsall, Gas Fitting
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be perforined, to be particularly described and ascertained in and by
the following statement :-
This invention has reference to fume dispersing bells commonly known as
"perdifumes" for gas and oil lamps and lights. The said perdifumes are inverted
bell like shades of metal glass or other suitable material usually suspended over
pendant gas and oil lamps and lights to disperse the smoke and to some extent

page_text: prevent the upper metal part of the fitting which is immediately over the light
being overheated. My invention is more particularly applicable to those perdifumes
which are used with what is known as the "incandescent" gas light. From this
light there is little or no smoke but there is a considerable amount of heat and it is
well known that the perdifumes and the upper part of the gas fitting by which
they are suspended if made of bright metal very soon become discoloured by
the heat.
The object of my invention is to so construct the said perdifumes that the heated
air will be caused to pass through the perdifumes and be directed away from the
upper part of the fitting.
I will describe my invention by referring to the accompanying drawing on
which
Fig. 1 represents a gas pendant provided with a fume dispersing bell or perdifume
constructed according to this invention;
Fig. 2 is a side elevation and
Fig. 3 is a plan of the said perdifume on an enlarged scale, and
Fig. 4 shews a gas pendant with another form of my improved perdifume.
The same letters of reference indicate the same parts in all the figures of the
drawing.
In carrying out my invention I provide in the upper part of the bell shaped
perdifume A one or more outwardly and upwardly directed short pipes tubes or
tubular outlets such as a a² a³ of sufficient length to carry the heated air from the
perdifume A outside the upper part of the pendant gas fitting B. In the example
shewn by Fig. 1 the perdifume A is made with two of these outwardly and
upwardly directed pipes tubes or tubular outlets marked respectively a a² and in
the three armed pendant shewn by Fig. 4 the perdifume A is made with three of
the said tubular outlets marked respectively a¹ a² a³ arranged between the
downwardly projecting arms b6263 of the gas pendant B. Thus when the gag
lighted the heated air will pass through the perdifume A and out through the
tubular like aperture or tubular like apertures a¹ a² a³ and be dispersed about the
room instead of over-heating the gas fitting. Moreover, by the air passing through
the perdifume A instead of collecting inside the same, the latter is prevented from
getting so hot as do the ordinary perdifumes.
is
The perdifumes shewn upon my drawing are made of metal but it will be under-
stood that instead of being made of metal they may be made of glass with the
short pipes or tubes a' a² a blown in a piece with the perdifume proper A, or they
may be made of other suitable material, and the shape may be varied without
departing from the nature of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manuer the same is to be performed I declare that what
I claim is:-
The hereindescribed improved fume dispersing bells or perdifumes made with
one, two or more outwardly and upwardly directed short pipes tubes or tubular
outlets arranged to cause the heated air to pass through the perdifume and away
from the gas fitting substantially as hereinbefore set forth and illustrated by the
accompanying drawing.
Dated this 8th day of November 1895.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.