Non-emitting Steam-engines and Boilers.
Year: 1887

page_text: Date of Application, 19th Nov., 1887
Complete Specification Left, 11th Aug., 1888
Complete Specification Accepted, 26th Oct., 1888
PROVISIONAL SPECIFICATION.
Non-emitting Steam-engines and Boilers.
I, THOMAS HUARD, Engineer, 19 Hunsdon Road, Royal Navy, Hatcham Park
estate, New Cross, S.E. do hereby declare the nature of this invention to be as
follows:-
Non-emitting smoke or other vapour. The purpose of my invention is to return
the products of combustion to the furnace together with an additional supply of
atmospheric air. The appliance employed for this purpose, is simple and does not
add to expense; but the utility gives six-times the value of the ordinary means, in
raising steam, also in doing away with the funnel, has many advantages, the
greater efficiency of the Boiler, the less size, weight, one sixth-part of the fuel,
as used by ordinary Boilers, very little deposit, no delay in cleaning Tubes.
Dated 6th July 1888.
THOMAS HUARD, R.N., Profs. Engnr., &c., &c.,
Board of Trade Certificate, 1st Class.

page_text: ACF C
I THOMAS HUARD, Engineer, Royal Navy, 19 Hunsdon Road Hatcham Park
Estate, New Cross, S.E. 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 my invention is to return the products of combustion to the furnace
together with an additional supply of atmospheric air. The appliance employed
for this purpose is simple and does not add to expense but the utility gives six times
the value of the ordinary means in raising steam also doing away with the Funnel
or Chimney has many advantages, vizt. greater efficiency of the boiler, less size,
weight, one sixth part of the fuel as used by ordinary boilers very little deposit, no
delay in cleaning tubes.
I need not state the many advantages non-emitting has, the whole apparatus being
connected, it is moveable, could be placed on trolly or other wheels, in a small room
or between decks in a vessel, as an auxiliary, invaluable as a Fire engine, for
ventilation or as a ventilator, the Boiler could have a pressure above 100 lbs., the
engines may be compound high pressure expansion, two cranks, angle 90°, cutting
off steam at half stroke, one fixed eccentric, and one slide valve for the two cylinders,
motion reciprocating and rotative, could work up to the strength of material,
although there are means for the well regulation when working, there are also means
for safety in case of accident, there is ample room for other contrivances.
The appliance by which I carry my invention into effect is shown in the
accompanying Drawings and consists of a fan A enclosed in an air-tight casing B,
with four immitting and four emitting orifices C, C, D, D, immitting and emitting
all matter and atmospheric air in proportion to form combustion, conducted through.
a pipe or pipes, tubes, or other channels, the size and speed in accordance with the
requirements, the fan takes its motion from the prime mover or other sources.
Two or more could be employed.
The pinion E, shown in half, may vary in accordance with the required speed.
There are two set screws sunk into the spindle for securing the fan, one shown dotted
with lock nut, the lubricators, and groove in bearings for conducting the lubricating
matter are left-out. The covers on the top can be removed, the set screws slackened
the spindle withdrawn and the fan can then be lifted out of casing.
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
The improvements in and connected with engines and Boilers substantially
hereinbefore described and illustrated.
In witness whereof 1 the said Thomas Huard have hereunto set my hand and
seal this Tenth day of August Eighteen hundred and eighty eight.
THOMAS HUARD, R.N., Profs. Engnr., &c., &c.,
Board of Trade Certificate, 1st Class.