Ventilators for Culverts, Tubes, Pipes, Boxes, and Chambers Laid or Fixed in Roads and Footpaths, in connection with the Distribution of Electricity.
Year: 1895

page_text: Date of Application, 27th June, 1895
Complete Specification Left, 24th Apr., 1896-Accepted, 30th May, 1896
PROVISIONAL SPECIFICATION.
Ventilators for Culverts, Tubes, Pipes, Boxes, and Chambers Laid
or Fixed in Roads and Footpaths, in connection with the
Distribution of Electricity.
WILLIAM WEAVER Member of the Institution of Civil Engineers Kensington
Town Hall London, W. do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to provide means for the free ventilation of
culverts, tubes, pipes, boxes and chambers, constructed laid or fixed in roads and
footpaths, in connection with the distribution of electric currents, and by such free
ventilation to insure the escape of gas and prevent explosions in culverts, tubes,
pipes, boxes and chambers aforesaid. 1 effect such free ventilation by means of
pipes or tubes laid from the culverts, tubes, pipes, boxes or chambers and connected
into flues or inner casings formed inside lamp posts with outlets from such flues
or casings formed through the sides of said lamp posts.
Dated this 27th day of June 1895.
COMPLETE SPECIFICATION.
Ventilators for Culverts, Tubes, Pipes, Boxes, and Chambers Laid.
or Fixed in Roads and Footpaths, in connection with the
Distribution of Electricity.
WILLIAM WEAVER Civil Engineer and Surveyor Town Hall Kensington 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:-
The object of my invention is to adapt gas or electric lamp posts in such a
mauner as to ventilate conduits mains pipes chambers boxes &c. used in connection
with the distribution of electrical energy, and by such ventilation prevent the
accumulation of gases and consequent risk and danger of explosions.
The means which I adopt to effect these results, are the formation of an inner
chamber or space within lamp posts or other columns used for sustaining lamps
lighted by gas or electricity.
The said inner chamber or space is entirely distinct from and has no opening
into the rest of the space forming the interior of the lamp post or column, so as to
render it impossible for any gas to pass from the one to the other.
The special ventilating posts would take the places of the ordinary lamp posts,
and would thus prevent the obstruction of highways by posts used only for
ventilation.
The drawing hereunto annexed shows the special features of my invention.
Figure 1 is a vertical section of an ordinary lamp post shewing the special
ventilating chamber inside same.
Figure 2 is a horizontal section of the post.
An iron pipe is laid from the conduit, main, chamber, or box to be ventilated and.
is connected into an orifice at the lower part or base of the post allowing any gas

page_text: to ascend into and through the inner chamber A and to escape into the outer air
through the outlet grating B which grating is protected by wire gauze in order to
prevent the chance of any gas inside the chamber being ignited by flame outside
the grating.
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
.
Lamp posts specially adapted for ventilating electric conduits, pipes, mains,
boxes and chambers.
D