An Improved Apparatus for Disinfecting and Purifying Air.
Year: 1895

page_text: Date of Application, 2nd Sept., 1895
Complete Specification Left, 30th May, 1896-Accepted, 25th July, 1896
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Disinfecting and Purifying Air.
JOHN JOSEPH HARTNETT Crown Hotel Harrogate, Surgeon do hereby
declare the nature of this invention to be as follows:-
By connecting a compressed air cylinder with a double capped cone (one
elongated cone fitting well inside the other) so that when a blast of air is forced
from the cylinder, fluid is sucked from a liquid chamber and blown forth in the
form of a fine spray.
This apparatus is fitted behind the door of a room chamber or closet so that the
door when opened acts as a motive power to work the compressed air cylinder.
Dated this 26th day of August 1895.
JOHN JOSEPH HARTNETT.
An Improved Apparatus for Disinfecting and Purifying Air.
I, JOHN JOSEPH HARTNETT, late of the Crown Hotel, Harrogate, now of
3, Endsleigh Gardens, in the City of London, Surgeon, 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 has reference to an improved disinfecting and purifying
apparatus for attachment to bedroom, closet and other doors, so that when
the door is opened a fine spray of disinfectant is blown forth into the room or
chamber.
In the accompanying sheet of explanatory drawings,
Figure 1 is a sectional elevation of my improved apparatus, and
Figure 2 is a sectional elevation of my end nozzle or spray injector.
Figure 3 is a plan showing my apparatus attached to a closet door, Figure 4 is a
similar view showing the door partly opened, and spray being ejected.
I fit or attach my cylinder or pump A behind the door and place within the
cylinder any ordinary form of piston or plunger B having a valve plate B¹ carried
upon the end of the hollow piston rod C which works freely through the piston
block B. I provide holes or air ports 6 within the piston which are covered
and uncovered by the valve plate B' when the cylinder is forced up and down
upon the piston.
To the outer end of the piston rod I attach a swivelling block D carrying a
double capped cone E F, one elongated cone E fitting or lying inside the other
cone F, so that when the door G is opened and closed the air is forced from the
compressed air cylinder A through the hollow piston rod C and the cone E causing
the fluid in the vessel H to be sucked up through fand blown forth in the form
of fine spray from the end of the nozzle F.
I sometimes place an adjustable cap F¹ upon the end of the outer cover F in
order that I may regulate the degree of spray which is to be produced and blown
forth.

page_text: I modify the form of carrying brackets K K K together with the form of fluid
chamber valve plate and piston employed in connection with my improved
combination apparatus, to suit the conditions and position of working for any
particular or special requirement.
I use any well known disinfectant or perfume in connection with my apparatus.
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.-
1. The combination of a compressed air cylinder having an outlet terminating
in a double cone, one fitting or being carried within the other, for attachment to
a door or frame, for producing and injecting a spray of disinfectant or perfume
into a room or chamber substantially as herein before described and as illustrated
in the accompanying drawings.
2. The improvements in apparatus for disinfecting and purifying air substantially
as hereinbefore described and as set forth in the accompanying drawings.
Dated this 20th ILM
1000
MARKS & CLERK,
18 Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.