An Improved Air Pump for Spray Producers and similar purposes:
Year: 1893

page_text: Date of Application, 15th Mar., 1893
Complete Specification Left, 4th Dec., 1893-Accepted, 6th Jan., 1894
PROVISIONAL SPECIFICATION.
An Improved Air Pump for Spray Producers and similar purposes:
I JAMES HENRY STONE, trading as Benton and Stone, of Bracebridge Street,
in the City of Birmingham, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention refers to the combination and arrangement of parts constituting
pumps used in deodorizers or spray producers, or other similar purposes.
Hitherto such appliances when made of metal, have necessitated the application
of both hands for their working, hence for such purposes as those named above it
has been found necessary to use india-rubber, elastic or similar substances, by
reason of their self re-expansible quality. In my invention however I am enabled
to employ metallic pumps as follows:-I provide a cylinder or barrel of suitable
diameter and length whose one end is closed. At its other end is a removable (by
screw-thread) cover, in the centre of which is the usual hole through which the
plunger rod slides. This plunger rod is tubular and communicates with the rear of
the barrel and at its inner end (inside the barrel) is placed the plunger. Between
this plunger however, and the closed end of the barrel, is now placed a strong spiral
spring, whose tendency is always to force outwards the plunger. To the outer end
of the plunger rod is now secured the one end of a flexible (or other) tube which
communicates with the nozzle &c. of the deodorizer or spray producer. Near this
end of the said rod I further provide a finger pull back piece of any suitable shape
so that when the pump is held in one hand, the fingers may conveniently press back
the plunger along the barrel against the pressure of the spring. Upon releasing
the pressure of the finger, the spring will again push the plunger back.
If desired,
this spring may be placed externally upon the rod between the finger pressure
piece and the front cover, but the internal arrangement is preferred.
for
As will be readily seen I may use this combination of spring with the pump
various purposes other than spray producing, such as inflaters, enemas, dust blowers
or air distributors.
Dated this 14th day of March 1803
CHARLES T. POWELL,
Applicant's Agent.
COMPLETE SPECIFICATION.
An Improved Air Pump for Spray Producers and similar purposes.
I JAMES HENRY STONE, trading as Benton & Stone, of Bracebridge Street
in the City of Birmingham, Manufacturer, 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 refers to the construction and arrangement of parts constituting
pumps used in deodorizers or spray producers, or other similar purposes.
Hitherto such appliances when made of metal, have necessitated the application
of both hands for their working, hence for such purposes as those named above it
has been found necessary to use india-rubber, elastic or similar substances, by
reason of their self re-expansible quality. In my invention however I am enabled
to employ metallic pumps as hereinafter described, and in order to more clearly
explain this my invention, I have appended hereunto an illustrative sheet of
Price d

page_text: drawings upon which are figures and numbers of reference, similar numbers
referring throughout the several views to the same thing or part.
Fig. 1, is a general view of my invention showing more particularly the pump in
section.
Fig. 2, is a detached sectional view of the pump showing the plunger com-
pressed.
Fig. 3, is a general view showing how the apparatus may be manipulated.
I provide a cylinder or barrel 4, of suitable diameter and length, whose one
end 5, is closed. At its other end is a removable (by screwthread) cover 6, in the
centre of which is the usual hole through which the plunger rod 7, slides. This
plunger rod is tubular and communicates with the rear of the barrel, and at its
inner end (inside the barrel) is placed the plunger 8. This plunger as shown
consists of the piece 8, and leather cup 8ª, but may be made in any desirable form.
Between this plunger however, and the closed end of the barrel, is now placed a
strong spiral spring 9, whose tendency is always to force outwards the plunger, as
shown in Fig. 1. To the outer end of the plunger rod 7, is now secured the one
end 10, of a flexible (or other) tube 11, which communicates with the nozzle &c. 12,
of the deodorizer or spray producer 13. Near this end of the said rod 7, I further
provide a finger pull back piece 14, of any suitable shape so that when the pump is
held in one hand as seen in Fig. 3, the fingers may conveniently press back the
plunger along the barrel against the pressure of the spring. Upon releasing the
pressure of the finger the spring will again push the plunger back. If desired, this
spring may be placed externally upon the rod between the finger pressure piece and
the front cover, but the internal arrangement is preferred.
As will be readily seen I may use this combination of spring with the pump for
various purposes other than spray producing, such as inflaters, enemas, dust blowers,
or air distributors.
Having now particularly described and ascertained the nature of this my inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination in au air pump, with the barrel 4, of the hollow rod 7,
having the plunger 8, spring 9, and finger pull back piece 14, all combined,
constructed, and operating in the manner and for the purposes described and
illustrated.
2. The combination with the deodorizer or spray producer of an air pump
constructed and operating as illustrated and shown upon the drawings.
Dated this 2nd day of December 1893.
CHARLES T. POWELL,
Applicant's Agent.