Improvements in Means Employed for Warming and Ventilating Hospital Wards and other Rooms, also for Disinfecting the Air as it Passes from such Wards or Rooms.
Year: 1890

page_text: Date of Application, 11th Sept., 1890
Complete Specification Left, 4th Dec., 1890-Accepted, 17th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Means Employed for Warming and Ventilating
Hospital Wards and other Rooms, also for Disinfecting the Air
as it Passes from such Wards or Rooms.
I, EDWIN OLDROYD of Crown Street. Leeds in the County of York, Mechanical
and Hot Water Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to supply fresh air, more especially to the wards of
fever and other hospitals, and further to disinfect or destroy the dangerous elements
of the vitiated atmosphere from such places before passing into the outer atmosphere.
The fresh air is conveyed in the first instance by means of one or more passages, or
in such a manner as the structural arrangements of the building or the exigencies of
each separate case may determine.
The fresh air supply passes into a reservoir constructed in the basement or lower part
of the building but preferably between two wards.
The air from this reservoir passes through openings in the top thereof into another
reservoir at a higher level, such second reservoir being heated by hot water or steam
pipes or by other suitable or convenient means.
From the upper part of this second reservoir for warmed air, any required number
of tubes or channels convey such heated air into the hospital ward or other place
requiring the same.
The outlets from the hot air reservoir into the wards or rooms are preferably placed
in the floor, having trumpet mouthed outlets provided underneath the foot of each
bed and raised a little from the floor so as to be protected from sweepings or accumulation
of dirt.
Other openings are provided in the upper part of each ward or room, preferably
over the head of each bed. Each opening may he adjusted with suitable valves or
dampers, so as to regulate the inlet and outlet of air.
The air on leaving the apartment is delivered into a passage separate and distinct
from the aforesaid receivers but immediately above them, this passage is made sufficiently
large so that an attendant can get into it for sweeping and other cleansing
purposes.
This passage conveys the vitiated air to a furnace in connection with a tall chimney
in such a manner that such vitiated air is compelled to pass through or over such
fire in the furnace, which is at such a high temperature as to perfectly disinfect the
air so that it passes from the chimney perfectly harmless.
Dated this 11th day of September 1890.
J. W. HARDING,
Agent for the Applicant.
COMPLETE
SPECIFICATION.
Improvements in Means Employed for Warming and Ventilating
Hospital Wards and other Rooms, also for Disinfecting the Air
as it Passes from such Wards or Rooms.
I, EDWIN OLDROYD of Crown Street, Leeds in the County of York, Mechanical and
Hot Water 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 :-
The object of my invention is to supply fresh air, more especially to the wards of
fever and other hospitals, and further to disinfect or destroy the dangerous elements

page_text: от the vitiated atmosphere from such places,
atmosphere.
Such invention is also applicable to other places.
In the accompanying drawings,
Fig. 1 is a transverse section.
before passing into the outer
Fig. 2 a longitudinal section through A B, Fig. 1,
and Fig. 3 a sectional plan of the basement of hospital with my invention applied
thereto.
The fresh air is conveyed in the first instance, by means of one or more passages A,
or in such a manner as the structural arrangements of the building, or the exigencies
of each separate case may determine.
The fresh air supply passes into a reservoir B constructed in the basement or lower
part of the building, but preferably between two wards C and D as shewn.
The air from this reservoir passes through openings E in the top thereof into
another reservoir F at a higher level, such second reservoir being heated by hot water
or steam pipes G or by other suitable or convenient means.
From the upper part of this second receiver F for warmed air, any required number
of tubes or channels H. convey such heated air into the hospital ward or other place
requiring the same. The outlets J from the hot air reservoir F into the wards or
rooms are preferably placed in the floor K, having trumpet mouthed outlets L
provided underneath the foot of each bed and raised a little from the floor as shown
so as to be protected from sweepings or accumulation of dirt.
Other openings M are provided in the upper part of each ward or room for the
exit of vitiated air, and preferably over the head of each bed. Each opening may
be adjusted with suitable valves or dampers so as to regulate the inlet and outlet
of air.
The air on leaving the apartment is delivered into a passage N separate and
distinct from the aforesaid receivers but immediately above them, this passage is
made sufficiently large so that an attendant can get into it for sweeping and other
cleansing purposes.
This passage N conveys the vitiated air to a furnace P in connection with a tull
chimney R, in such a manner that the vitiated air is compelled to pass through or
over such fire in the furnace which is at such a high temperature as to perfectly
disinfect the air, so that it passes from the chimney perfectly harmless.
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 combination of the means employed for warming and ventilating hospital
wards and other rooms, also for disinfecting the air as it passes from such wards
or rooms, arranged and operating substantially as herein set forth.
Dated this 4th day of December 1890.
J. W. HARDING,
Agent for the Applicant.