A Ventilating Appliance for Removing or Dispersing Vitiated Air in Bedrooms, Sitting Rooms, and the like.
Year: 1892

page_text: Date of Application, 11th May, 1892
Complete Specification Left, 4th Feb., 1893-Accepted, 4th Mar.,
1893'
PROVISIONAL SPECIFICATION.
A Ventilating Appliance for Removing or Dispersing Vitiated Air
in Bedrooms, Sitting Rooms, and the like.
I, DANIEL NICHOLS, of 48 Shakespere Street, Manchester, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
My invention relates to a ventilating appliance which is primarily intended for
the purpose of removing or dispersing the vitiated air and vapours arising from
persons during sleep or rest.
The ventilating appliance consists of a fan composed preferably of a blade or
blades fixed upon a shaft which is driven by an arrangement of gearing actuated by
clockwork mechanism driven preferably by weights. The whole appliance is
preferably so arranged that it can be easily carried or removed from place to place.
as required, the fan shaft is mounted so that it can be swivelled or adjusted to any
convenient position relatively to the head of the sleeper.
My intention is that the clockwork mechanism should be wound up at night so as
to start the fan and continue to drive it gently throughout the night whereby a
current of fresh air is induced to take the place of the air expired by the sleeper.
In hot weather also the appliance can be used to keep down excessive temperatures.
and being in its preferred form portable it can be readily taken from one room to
another as required.
Dated this 10th day of May 1802
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
A Ventilating Appliance for Removing or Dispersing Vitiated Air
in Bedrooms, Sitting Rooms, and the like.
I, DANIEL NICHOLS, of 48 Shakespere Street, Manchester, in the County of
Lancaster, Engineer, 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:-
My invention relates to a ventilating appliance which is primarily intended for
the purpose of removing or dispersing the vitiated air and vapours arising from
persons during sleep or rest.
The ventilating appliance consists of a fan composed preferably of a blade or
blades fixed upon a shaft which is driven by an arrangement of gearing actuated by
clockwork mechanism driven preferably by weights. The whole appliance is.
preferably so arranged that it can be easily carried or removed from place to place
as required, the fan shaft is mounted so that it can be swivelled or adjusted to any
convenient position relatively to the head of the sleeper.
My intention is that the clockwork mechanism should be wound up at night so as
to start the fan and continue to drive it gently throughout the night whereby a
current of fresh air is induced to take the place of the air expired by the sleeper.
In hot weather also the appliance can be used to keep down excessive temperatures
and being in its preferred form portable it can be readily taken from one room to
another as required.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.

page_text: Figures 1 and 2 are an elevation and plan respectively both partly in section of a
portable form of ventilating appliance constructed according to my invention.
Figures 3 and 4 are similar views of an alternative arrangement.
In Figures 1 and 2,-a designates a hollow pedestal or stand within which is
fitted a weight b to which is attached a pulley block c; from the top of the pedestal
is suspended a second pulley block d, to which is attached a rope, chain or
equivalent e. The rope passes under the first sheave in the pulley block c
back over the sheave in the pulley block d, then down under the second
sheave in the block c and up to a drum or clockwork chain barrel, to which
it is secured and upon which it is wound by means of a key. The axle f¹ of
the chain barrel fis supported in bearings in brackets g and on the axle fis fixed
a toothed wheel (not shown) which drives a small pinion on the axis of which is
fixed a larger pinion which drives a small pinion and so on through any
convenient and suitable number and arrangement of gears for reducing speed.
The last wheel i of the train is a star wheel which drives a peg wheelj fixed on the
fan shaft which carries the fan and is supported at one end in the casing m by
which the gearing is covered, and at the other end in an arm which is secured to
the casing m.
In operation the pedestal or stand a is placed beside the bed or elsewhere as
required with the fan projecting over the bed, the key is then applied to the end of
the axle and the drum thereby turned so as to wind up the rope e and weight b.
As the weight b gradually falls it slowly turns the train of gears and rotates the fan
shaft causing the fan to revolve at say twenty five revolutions per minute or
more or less as arranged.
In this arrangement the fan shaft and fan always revolve in one direction; but
the fan may be caused to blow the air towards and upon the face of the occupant of
the bed or drive the air away in the opposite direction by placing the pedestal a on
either side of the bed as required.
In Figures 3 and 4 the pedestal or stand a is dispensed with and instead a clamp o
is employed which is secured to a post or pillar p of the bedstead or other similar
support. The casing m, which contains the drum and gearing as before described,
has a shank m¹ formed upon one side which enters a sleeve or boss in the clamp o so
that the fan shaft and arm n although they cannot fall below the horizontal
position shown in full lines, can be turned up out of the way when desired into the
position indicated by dotted lines, Fig. 3. The pulley block d in this arrangement
is suspended from an arm q secured by a collar and nuts to the clamp o.
In order to drive the fan shaft k and fan l in either direction two star wheels i are
employed secured on a sliding axle one on either side of the peg wheel j, so that by
pressing or pulling the button t which is fixed on the sliding axle either wheel i
may be moved into gear with the peg wheel j as required.
The arrangements of gearing shown for transmitting motion to the fan shaft and
fan may be varied or modified, or any other convenient mechanism for the purpose
may be employed.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. A ventilating appliance consisting of a fan driven by gearing actuated prefer-
ably by a falling weight, and arranged to be carried or removed from place to place
as required for the purposes specified..
2. The portable ventilating appliance constructed and arranged substantially as
and for the purposes
herein described and as illustrated by Figs. 1 and 2.
3. The ventilating appliance constructed and arranged. substantially as and for
the purposes herein described and as illustrated by Figs. 3 and 4.
This 2nd 1
Wh1902
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicant.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicant.