Improvements in Inflaters for Inflating Pneumatic Tyres, and like purposes.
Year: 1896

page_text: PH
VISIONAL SPECIFI TION.
Improvements in Inflaters for Inflating Pneumatic Tyres, and
like purposes.
1, CHARLES GEORGE HEAVEN of 107 Vyse Street Birmingham in the County
of Warwick Jeweller do hereby declare the nature of my said invention to be
as follows:-
My invention has for its object improvements in inflaters for inflating pneumatic
tyres and like purposes by which I can more easily and expeditiously operate
the same.
In carrying my invention into practice I form the bottom end of the outer
cylinder solid and hinge one or more projecting pieces thereto upon which the foot
of the operator is placed for steading or supporting the pump when operating the
same. The outlet to which the valve connection is fixed is formed at the side close
to the bottom. The plunger or piston rod which is hollow has two slots running
parallel in either side and in the interior of this piston rod I insert a coiled spring
or its equivalent held at the bottom end by means of a pin passing through the
sides of the outer cylinder at the top end and by a flat cap fixed on the top of
the piston rod. When the piston rod is forced downwards the pin slides up the
slots thus compressing the spring and the piston rod can be held in this closed
position by giving it a slight turn when the pin catches at the top of the slots
which are formed crosswise for this purpose.
When operating my inflater one foot is placed upon the projecting piece or pieces
and the piston rod actuated with the other or it may be actuated by the hand of
the operator.
Dated this 9th day of December 1806
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.
Improvements in Inflaters for Inflating. Pneumatic Tyres, and
like purposes.
I CHARLES GEORGE HEAVEN, of 107 Vyse Street Birmingham in the County
of Warwick, Jeweller do hereby declare the nature of my said 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 has for its object improvements in inflaters for inflating pneumatic
tyres and like purposes by which I can more easily and expeditiously operate
the same.
In order that my invention may be clearly understood and easily carried into
practical effect I have appended hereunto a sheet of drawings upon which I have
illustrated examples of the same.

page_text: Figure 1 is an elevation of my inflater in a closed position.
Figure 2 is a modification of Figure 1 shewing the plunger D extended
or open.
Figure 3 is an elevation of the plunger D.
In carrying my invention into practice I form the outer cylinder A with the
cap a¹ fixed to the bottom end and formed out of or attached to this cap are
the supports or legs a², a' at which form a steady for the inflater when operating the
same. Or instead of these supports I may hinge two or more pieces a to the
bottom for the same purpose as clearly shown at Figure 2. The ontlet a into
which the valve connection is screwed is formed close to the bottom. The plunger
or piston rod D is hollow and has two slots d' and d formed in either side
extending nearly to the bottom. The top ends d³ of these slots run at right angles
to the parts d' and d in opposite directions and are enlarged at the end. I then
fix the cap d' on the top of this plunger and insert the coiled spring s which is held
in position by the cross pin s¹ and the usual cap is fixed to the bottom to which the
leather sucker is attached. This plunger is then placed into the outer cylinder
and the pin which forms a bearing for the coiled spring passes through two holes
formed in the cap a' and through the slots d' and d as clearly shown at Figure 2.
When the plunger is forced downwards the pin slides up the slots and compresses
the spring and the plunger can be held in this closed position by slightly. turning
it when the pin drops into the enlargements at the ends of the slots d³ as shown at
Figure 1.
To operate my inflater the plunger is first released and the inflater placed upon
the ground when the plunger is pressed downwards by the foot of the operator,
and when the pressure is released the action of the spring forces it up again by
which means the tyre or other article can be easily and expeditiously inflated.
Instead of actuating the plunger by the foot it may be operated by hand if
desired.
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 :-
First. In an inflater inserting a spring or its equivalent in the interior of or
adjacent to the plunger or piston rod so as to operate the same in the manner and
for the purpose substantially as hereinbefore described and as shown on the
accompanying sheet of drawings.
Second. In an air pump or inflater actuating the plunger or piston rod by a
spring while the pump is retained on its base in the manner substantially as herein-
before described and as shown on the accompanying drawings.
Dated the 23rd day of January 1897.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent.