Improved Ventilating Apparatus for Railway Carriages.
Year: 1894

page_text: Date of Application, 14th July, 1894
Complete Specification Left, 25th Sept., 1894-Accepted, 20th Apr., 1895
PROVISIONAL SPECIFICATION.
Improved Ventilating Apparatus for Railway Carriages.
JAMES HENRY ASHWORTH 3 Grange Street Chadderton Road Oldham Twiner
ALBERT GILLESPIE 395 Lees Road Oldham Sanitary Inspector WILLIAM
GILLESPIE 253 Lees Road Oldham Cotton Mill Manager do hereby declare the
nature of this invention to be as follows:-
:-
'
This invention relates specially to the ventilation of railway carriages & the
extracting therefrom of all foul air smoke & floating particles thus assuring to
railway travellers immunity from the impurities of an unventilated compartment.
The nature of the invention is as follows:-
Attached to a zinc cylinder which works vertically on centres is a spiral
arrangement, the motion to which is gained by the cylinder being covered with
strips of zinc or other material in such a manner that it revolves when in contact
with a strong current as in the movement of a railway train.
The lower portion of this extractor is covered with a perforated plate this
allowing a ready means for the exit of the impurities named.
A cowl is attached above the extractor which allows all foul air when once
extracted to be immediately dispersed & at the same time prevents any rain from
entering the compartment.
We claim for our invention
That it allows no back draught or current.
Will not admit of rain entering the compartment.
Constantly at work when the carriage is in motion.
Cannot be tampered with by the occupants.
Noiseless in motion & requires no lubricating.
Improved Ventilating Apparatus for Railway Carriages.
We JAMES HENRY ASHWORTH 3 Grange Street Chadderton Road Oldham
Twiner ALBERT GILLESPIE 395 Lees Road Oldham Sanitary Inspector and
WILLIAM GILLESPIE 253 Lees Road Oldham Cotton Mill Manager, 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 specially to the ventilation of railway carriages by means
of extracting therefrom all foul air, smoke and floating particles.
We arrive at this result in the following manner :-
Attached to a cylinder which may be made of tin zinc or other material and
which works vertically on centres is an internal spiral arrangement.

page_text: The cylinder obtains its motion from having wings formed of strips of tin zinc or
other material arranged in such a manner that the cylinder is caused to revolve by
contact with a current of air as in the movement of a railway train.
The lower portion of the ventilator is covered with a perforated plate which may
be constructed to close if required.
A cowl is attached over the ventilator to prevent the ingress of rain.
In the accompanying drawing which illustrates our invention :-
Figure 1 is a view in sectional elevation of our improved apparatus, and
Figure 2 is a view in sectional plan thereof.
In both views similar parts are marked with like letters of reference.
Referring to the drawing A designates the cylinder having au internal screw B.
C designates the base of the apparatus and D the cowl supported by suitable
legs c, c, etc. a designates the axle carrying the cylinder and E and E¹ the
bearings for carrying the said axle, the top bearing E being carried by a cross
bar d fixed to the cowl and the bottom bearing E³ being carried by a cross bar f
fixed to the cone F through which the air is drawn. This cone may be covered
by a perforated plate G if desired and may also be fitted with a plate or cover to
entirely close it. H, H etc. designate the wings on the exterior of the cylinder A.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
(1.) The improved ventilating apparatus, as hereinbefore described and illustrated
by the accompanying drawing.
(2.) In a ventilator, the combination with a revolving cylinder, of an internal
screw and external wings, as and for the purpose set forth.
(3.) A ventilator consisting essentially of a cylinder having an internal screw or
worm and external wings, the said cylinder being mounted in suitable bearings to
revolve freely, and of a cowl covering the said cylinder, as set forth.
Dated this 24th day of September 1894.
ated this 24th day of September 1894.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants.