Improvements in Apparatus for Inducing and Promoting Draught in Chimneys of Low Altitude, Specially Adapted and Contrived for Marine Boilers.
Year: 1886

page_text: Date of Application, 16th Sept., 1886.
Complete Left, 26th May, 1887.
Complete Accepted, 23rd Aug., 1887.
PESERVE
Improvements in Apparatus for Inducing and Promoting Draught
in Chimneys of Low Altitude, Specially Adapted and Contrived
for Marine Boilers.
We THOMAS CARTER, Engineer 18 Romilly Street South Shields and WILLIAM
BARROW TULLY Ship Owner 4 Lombard Street Newcastle on Tyne do hereby declare
the nature of this invention to be as follows:-
An Anular Ring or channel containing a series of Jets fixed inside the funnel or
Chimney in any convenient position the Jets may either be in the form of seperate
taper tubes pointing upwards in a slightly slanting direction or they may be formed
by taper holes cast in a distance ring to which the outer & inner casing of the anular
Channel is connected forming the wind or steam reservoir, We use either compressed
air or steam to induce the draught the former being produced by an air pump of
sufficient power placed in proxanity to the Chimney or Funnel. The wind or steam
reservoir being tapered both in the depth & circumference to give greater force to the
Jets, We claim as new novel & of public utility the application of compressed air or
steam to induce draught & promote ventilation of confined spaces in the manner above
described.
1000

page_text: Improvements in Apparatus for Inducing and Promoting Draught
in Chimneys of Low Altitude, Specially Adapted and Contrived
for Marine Boilers.
WILLIAM BARROW TULLY Steam Ship owner Glenbrook-Lowfell Co. Durham and
THOMAS CARTER Managing Engineer Dundas Street Monkwearmouth Co. Durham
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 purpose of this Invention is to Induce & accelerate the draught in Boiler
Chimneys Flues and also by the same means to increase the heating power of flues in
drying houses and the like by the action of compressed air which is injected into the
chimney or flue through the medium of a ring of metal or other suitable material and
fits into the flue or chimney-a series of taper Jets are inserted into the body of this
ring which is hollow-or a series of taper holes are cast or drilled in it or an anulur
slit extends round the face of the ring set to the proper focus, the object being to
create artificial draught by the vacuum caused by the rush of air through the jets or
slit. Which air is supplied through a branch or branches in any suitable manner
and connected with the air pump or compressor in any convenient manner.
The drawings accompanying this Specification shew:-Figures 1 & 2 sectional
elevation and plan of a boiler chimney, and figures 3 & 4 section and elevation of a
square flue or heat conductor for Drying Houses and the like; all the views with the
air Jets in position.
Having now particularly described and ascertained the nature of our said Invention,
and in what manner the same is to be performed, we declare that what we claim is :-
We claim as new and novel the application of compressed air to the inducing and
acceleration of draught in chimneys, Flues and like places, in the manner shewn and
described.
Dated this
day of
1887.
Witness:
J. W. H. TURNBULL,
17, Monk Street, Monkwearmouth.
WILLIAM BARROW TULLY.
THOMAS CARTER.