A NEW OR IMPROVED COVERING AND APPLIANCE FOR SANITARY PURPOSES TO BE EMPLOYED FOR VENTILATING AND FILTERING THE AIR OF CARRIAGES BEDSTEADS, AND INVALID CHAIRS
Year: 1883

page_text: LETTERS PATENT to Walter Alfred Barlow Patent Agent and Engineer of
6 St Paul's Churchyard in the city of London for an Invention of "A NEW
OR IMPROVED COVERING AND APPLIANCE FOR SANITARY PURPOSES TO BE
EMPLOYED FOR VENTILATING AND FILTERING THE AIR OF CARRIAGES BEDSTEADS,
AND INVALID CHAIRS". a communication to me from abroad by Ernst
Sandow Doctor of Philosophy of Hamburg in the Empire of Germany
PROVISIONAL SPECIFICATION left by the said Walter Alfred Barlow at
the Office of the Commissioners of Patents on the 17th November 1883.
WALTER ALFRED BARLOW Patent Agent and Engineer of 6 St Pauls Churchyard
in the city of London "A NEW OR IMPROVED COVERING AND APPLIANCE FOR
"
SANITARY PURPOSES TO BE EMPLOYED FOR VENTILATING AND FILTERING THE AIR
OF CARRIAGES BEDSTEADS AND INVALID CHAIRS a communication to me from
abroad by Ernst Sandow Doctor of Philosophy of Hamburg in the Empire of
Germany
This invention has for object to facilitate or provide for the supply of filtered
air or air moistened or impregnated with medical ingredients to the interior of
carriages invalid chairs or bedsteads by means of an improved covering attached
to the frame of the carriage roof or on top of the invalid chair or bedstead.
The air is sucked in to the interior of the roof or frame by means of a ventilator
attached to or in combination with the covering which ventilator at the same time
removes the foul or vitiated air from the interior of the roof or frame. The
covering is preferably constructed out of leather. wax cloth oil silk or other flexible
and air tight material and is furnished with a stiff surrounding rim or border that
can be tightly fastened to the roof or frame of the carriage bed or chair by means
of cramps straps or other suitable means. The filter attached to this covering
consists of a frame containing three or more compartments through which

page_text: atmospheric air is by the before named ventilator sucked in to the interior of the
carriage chair or bedstead The air while passing through the compartments of
the filter is inoistened or impregnated with medical gases by passing over a piece
of felt wetted or impregnated with the requisite ingredient liquid or spirit the
vapours of which have to be inhaled by the invalid person. The third com-
partment contains a wad of cotton wool or of wadding through which the air
is drawn or passed and filtered from all damaging mechanical impurities contained
therein.
The ventilator that is preferably attached to the covering at the back of the
invalid consists of a small wind wheel or fan driven by clock work or other
mechanical motor or in case of stationary bedsteads the ventilation may be
produced by means of a chimney connected to the covering by an intermediate
pipe or channel The exhausted foul air can by the ventilator be forced into a
gas flame a stove or a fire for consuming all infectious germes contained in it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by
the said Walter Alfred Barlow in the Patent Office on the 17th May 1884.
WALTER ALFRED BARLOW, Patent Agent and Engineer of 6 St Paul's Churchyard
in the city of London A. NEW OR IMPROVED COVERING AND APPLIANCE FOR
SANITARY PURPOSES TO BE EMPLOYED FOR VENTILATING AND FILTERING THE AIR
OF CARRIAGES BEDSTEADS AND INVALID CHAIRS a communication from abroad
by Ernst Sandow Doctor of Philosophy of Hamburg in the Empire of Germany
f
"
This invention has for object to facilitate or provide for the supply of filtered
air or air moistened or impregnated with medical ingredients to the interior of
carriages, invalid chairs or bedsteads by means of an improved covering attached
to the frame of the carriage roof or on top of the invalid chair or bedstead.
The air is sucked into the interior of the roof or frame by means of a ventilator
attached to or in combination with the covering which ventilator at the same time
removes the foul or vitiated air from the interior of the roof or frame. The
covering is preferably constructed of leather, wax-cloth, oil-silk or other flexible
and air tight material and is furnished with a stiff surrounding rim or border that
can be tightly fastened to the roof or frame of the carriage, bed, or chair, by means
of cramps straps or other suitable means. The filter attached to this covering,
consists of a frame containing three or more compartments through which
atmospheric air is by the before named ventilator sucked into the interior of the
carriage chair or bedstead. The air whilst passing through the compartments of
the filter, is moistened, or impregnated with medical gasses by passing over a piece
or pieces of felt or fabric wetted, or impregnated with the requisite ingredient
liquid or spirit, the vapours of which have to be inhaled by the invalid person.
The third compartment contains a wad of cotton wool or of wadding through
which the air is drawn or pressed and filtered from all deleterious or damaging
mechanical impurities contained therein
The ventilator that is preferably attached to the covering at the back of the
invalid, consists of a small wind-mill or fan driven by clock-work or other
mechanical motor, or in case of stationary bedsteads the ventilation may be
produced by means of a chimney connected to the covering by an intermediate
pipe or channel. The exhausted foul air can by the ventilator be forced into a gas
flame, a stove, or a fire for consuming all infectious germes contained in it.
In the accompanying sheet of drawings this invention is illustrated as applied to
a carriage for children.
Fig 1 represents an outer side elevation of the carriage partly in section Fig 2 is
a ground plan of same and Figs 3, 4 and 5 are respectively side elevation in
section, ground plan and longitudinal section seen from above of the before
described filter.
The covering A that may be furnished with a stiff, hollowed out rim all round,
is tightly fastened down to the carriage-frame. D is a frame of wood or other
suitable material; to one side of which the filter F is attached whilst the other side
receives a glass b through which the baby or child can be observed and also for the
child to look through.
The fan or ventilator v is attached to the back of the carriage in such way that
if driven by a clockwork or other motor, the vitiated air is sucked out from the
interior of the carriage, whilst fresh air passes through the filter into the carriage.
Filter F, contains three compartments, compartment m is constructed for the
reception of a felt or fabric plate o that can be exchanged or removed by drawing
button r.
The new air enters and passes through filter F in direction of the

page_text: arrows. The air passes on its way through the filter along the surface of felt o
impregnated with water or other requisite ingredients and passes through a second
compartment m¹ into the third compartment m³ containing a wad of cotton or
wool or other suitable filtering material
Having now described the nature and particulars of the said invention,
I claim :-
Firstly. The improved coverings for sanitary purposes combined and constructed
for ventilating and filtering the air of carriages, bedsteads and invalid chairs as
herein set forth and as described in reference to and shown by the drawing annexed
hereto showing an application of said covering to a baby's carriage and
Secondly. The filter F, m, m', m³, o, ras and for the purposes herein described
and shown by the drawings.
In Witness whereof I the said Walter Alfred Barlow have hereunto set my hand
and seal this sixteenth day of May in the year of Our Lord one thousand eight
hundred and eighty-four.