Improvements in or relating to Pumps Suitable for Inflating Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 5th June, 1897
Complete Specification Left, 3rd Dec., 1897-Accepted, 5th Feb., 1898
IONAL DIEVITICATION.
Improvements in or relating to Pumps Suitable for Inflating
Pneumatic Tyres.
I, HAROLD RICHARD GOODWIN, of Rosedale, Elm Lane, Sudbury, near Harrow,
in the County of Middlesex, Accountant, do hereby declare the nature of this
invention to be as follows:
Pumps for inflating pneumatic tyres have been constructed with a pivoted foot-
piece whereby the outer end of the piston rod or the lower end of the pump barrel
can be held upon the ground whilst working the pump, a lateral air branch or
union being provided at the side of the piston rod or pump barrel for connecting
the same by means of a flexible pipe to the air valve of the tyre to be inflated.
With this construction however considerable difficulty is experienced in connect-
ing the pump to the air valve, necessitating the use of a special construction of
flexible coupling piece or union between the air valve and flexible tube which
detracts from the usefulness of the pump.
Now this invention has for object to obviate the disadvantage above referred to
and permit of the flexible pipe being screwed onto the air valve by the rotation of
the pump about its axis in the ordinary way which is impracticable with pumps
of the kind referred to constructed with lateral air exit branches.
For this purpose I construct that end of the pump barrel or that end of the
hollow piston rod that will be the lower end when the pump is in use with a
longitudinally arranged air outlet or union and with a longitudinal extension that
is adapted to rest on the ground and accommodate the end of the flexible tube
connected to the air outlet or union and is provided with a foot piece, the arrange-
ment being such that the pump can be turned about its axis to admit of the
flexible pipe connected thereto being screwed in the ordinary way to the air valve
of a pneumatic tyre and can then be supported on the ground by its longitudinal
extension and held in place by the foot piece, the flexible tube then extending in
a convenient direction to the air valve.
The longitudinal extension and its foot piece can be constructed in various forms.
In one construction the extension comprises two longitudinal rods or bars
adapted to rest at their lower ends upon the ground. In a modified construction
the free ends of the said rods or bars are connected and strengthened by a trans-
verse piece that may conveniently be in the form of a perforated plate or a ring
slotted at one side to admit of the flexible tube extending longitudinally and in a
direct line with the axis of the pump whilst it is being screwed to the air valve
of a pneumatic tyre and of afterward extending in a more or less lateral direction
to the said valve. In some cases the perforated plate or ring may be unslotted
but I do not consider this so advantageous a construction as those hereinbefore
mentioned. The other ends of the rods or bars in each construction are fixed
in any convenient manner to the pump barrel or piston rod, it may be by a tube,
ring or other device secured to the barrel or rod by screwing, brazing or otherwise.
In another construction the extension is of tubular form having a slot at one
side to accommodate the flexible tube and admit of the same being in line with the

page_text: axis of the pump, whilst it is being connected to the air valve of a pneumatic
tyre and of afterward extending laterally through the slot to the valve when the
extension is held on the ground. The foot piece in each case is or may con-
veniently be in the form of a wire frame hinged or pivoted to the extension so
that it can be turned down against the ground or turned up against the pump
barrel or piston rod, but it may be of other form, for example a strip or bar,
perforated or not, and removably attached to the extension as by sliding in a
transverse way.
Improvements in or relating to Pumps Suitable for Inflating
Pneumatic Tyres.
I, HAROLD RICHARD GOODWIN, of Rosedale, Elm Lane, Sudbury, near Harrow,
in the County of Middlesex, Accountant, 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 improved constructions of portable pumps each
designed to permit of the flexible air tube connected to its air delivery outlet
being screwed onto the air valve of a pneumatic tyre by the rotation of the pump
about its axis and of afterwards being held upon the ground by the foot of the
user of the pump when the same is being worked.
According thereto that end of the portable pump barrel or that end of the hollow
piston rod which will be the lower end when the pump is in use, is constructed
with a non-removable longitudinally arranged air outlet or union and with a
rigid non-removable longitudinal extension which is adapted to rest on the ground
and to accommodate the end of the flexible air tube connected to the air outlet or
union of the pump, and which is provided with a foot piece, the arrangement
being such that the pump can be turned about its longitudinal axis to admit of
the flexible pipe connected to the outlet or union being screwed in the ordinary
way to the air valve of a pneumatic tyre and can afterwards be supported on the
ground by its longitudinal extension and be held in place by the foot piece, with
the air outlet or union above the ground and the flexible tube extending in a
convenient direction to the air valve, as I will now proceed to describe with
reference to the accompanying illustrative drawings, wherein
Figs. 1 and 2 are elevations at right angles to each other and Fig. 3 a section
on the line of Fig. 1, showing the invention applied to an air pump of the
type in which the pump barrel 1 is to be held stationary during use whilst the
piston 2 is reciprocated by a rod 3 that may be attached, as usual, to a tubular
handle 4 arranged to work telescopically in relation to the pump barrel. In this
example the lower end of the pump barrel, which is provided with a fixed central
air exit nozzle 5 for attachment to a flexible air delivery tube 6, is provided with
a longitudinal extension 7 comprising two longitudinal rods or bars having enlarged
lower free ends 7 to adapt them to rest upon the ground. Figs. 4, 5 and 6 are
similar views to Figs. 1, 2 and 3 respectively showing a modified construction in
which the lower end of the pump barrel is formed with a central screw threaded
outlet opening 5 into which a corresponding union on the flexible tube 6 can be
screwed, and the free or lower ends of the said rods or bars 7 are connected and

page_text: strengthened by a transverse piece 7 that may conveniently be in the form of a
flat perforated plate that is adapted to rest on the ground and is slotted at one
side, as shown at 7°, so as to allow of the flexible air delivery tube 6 passing in
a lateral direction therethrough in order that it may extend longitudinally and in
a practically direct line with the axis of the pump whilst it is being screwed to
the air valve 8 of a pneumatic tyre 9, as shown in Fig. 7, and of being after-
wards moved through the slot, to the exterior of such plate, so that it can then
extend in a more or less lateral direction to the said valve in order that the pump
may be placed upon the ground to one side of the tyre and in a convenient position
to be operated, as shown in Fig. 8. In some cases, the perforated plate may be
made as shown in side elevation in Fig. 9, in sectional plan in Fig. 10, and in
part front elevation in Fig. 9ª, according to which the plate 7b instead of being
slotted at one side like that shown in Figs. 4, 5, and 6 is continuous or ring like
as seen in plan but has one portion 7° of it arched or curved upward so as to
form an elongated opening through which the flexible air tube 6, after it has been
connected to an air valve by turning the pump about its longitudinal axis, can
be led laterally as indicated by dotted lines in Fig. 9.
The other or upper ends of the rods or bars 7 in each construction are per-
manently and rigidly fixed in any convenient manner to the pump barrel (or
piston rod) it may be by being formed in one piece with the barrel, or by being
cast or otherwise formed in one piece with a tube, ring or other equivalent device
permanently secured to the pump barrel (or piston rod) as by brazing or soldering.
In Figs. 1 and 2 the rods or bars are shown formed in one piece with a tube 7d
permanently secured to the pump barrel the bottom 1ª of which with air outlet
nozzle 5 is brazed or otherwise rigidly fixed in place in an air tight manner in
the barrel. In Figs. 4, 5 and 6 the rods or bars 7 are connected to a ring 7d that
is brazed or otherwise permanently fixed to the lower end of the pump barrel.
Figs. 11 and 12 are elevations at right angles to each other, and Fig. 13 a
sectional plan, showing another construction in which the longitudinal extension 7
is of tubular form and has a longitudinal slot 7° at one side to accommodate the
flexible air tube 6 and admit of the same being in line with the axis of the pump
whilst it is being connected to the air valve of a pneumatic tyre and of afterward
extending laterally through the slot to an air valve when the extension is held
on the ground. The upper end of the tubular extension. 7 is rigidly fixed to the
pump barrel by brazing or the like, or by being formed in one piece with and
as an extension of the pump barrel. Two oppositely arranged holes 7* are formed
in the tubular extension to enable a flexible air tube to be readily connected to
the outlet or nozzle 5, as by a finger and thumb.
The extension 7 in each construction is provided with a suitable foot piece by
which it can be held upon the ground by the foot of the pump operator. This
foot piece can be made in various forms. In the construction shown in
Figs. 1, 2, 3, 7, 8, 11, 12 and 13, the foot piece is shown in the form of a wire
frame 12 hinged or pivoted to the lower portion of the extension 7 so that it can
be turned down against the ground, as shown in full lines in Figs. 1, 2, 3, 8
and 11, or be turned up against the pump barrel as shown in dotted lines in
Fig. 1 and in full lines in Fig. 7. In Figs. 4, 5 and 6 the foot piece 12 is made
in one piece with and as a lateral extension of the slotted connecting piece or
plate 7b In Figs. 9 and 10 the foot piece 12 is shown as a separate strip or bar
removably attached to the longitudinal extension 7, as by being arranged to
slide in a transverse way 7 formed therein.
When applying the invention to air pumps of the type in which the pump
barrel is reciprocated whilst the pump piston is held stationary and is connected
by a hollow piston rod and flexible tube to an air valve, the longitudinal exten-
sion with foot piece is permanently and rigidly secured to the outer end of the
piston rod so as to support and hold the same above the ground when in use.
In this case the extension may be of any one of the kinds hereinbefore described

page_text: except that its upper end must be adapted to be permanently secured to the piston
rod instead of to the pump barrel.
Figs. 14 and 15 are elevations at right angles to each other, and Fig. 16 is a
sectional plan, showing one construction of this kind in which the upper end of
the extension 7, (of the kind shown in Figs. 4, 5 and 6) is constructed and pro-
vided with a tubular extension 7 by which it is permanently and rigidly fixed,
as by brazing or soldering, to the outer end of the hollow piston rod 3, for the
purpose hereinbefore explained.
As will be seen in each case the pump extension is so constructed and arranged
that when in use the axis of the pump is directly over it so that the pressure
is exerted axially on the support thereby obviating any tendency of the extension
to cant sideways when the pump is in use.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is:
1. A portable air pump having that end of the pump barrel or that end of the pump
piston that will be the lower end when the pump is in use constructed with a
longitudinally arranged air outlet or union and with a longitudinal extension
comprising longitudinal rods or bars or a slotted tube that are or is permanently
and rigidly attached at one end to the pump and are or is adapted at the other
end to rest upon the ground and accommodate the flexible air tube connected
to the air outlet or union, and are or is provided at such end with a foot piece,
substantially as hereinbefore described with reference to the accompanying draw-
ings for the purposes specified.
2. The improved air pumps constructed with a longitudinally arranged air out-
let or union, and tubular extension with foot piece substantially as hereinbefore
described with reference respectively to and shown in Figs. 1, 2 and 3; in
Figs. 4, 5, and 6; in Figs. 9 and 10; and in Figs. 11, 12 and 13 of the drawings
annexed, or modified as described with reference to and shown in Figs. 14, 15,
and 16 according to which the tubular extension with foot piece instead of being
fixed to the pump barrel is fixed to the piston rod.
Dated this 1st day of December. 1897.
HAROLD RICHARD GOODWIN.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.