New or Improved Attachment for Air Pumps used for Inflating Pneumatic Tyres.
Year: 1898

page_text: PROVISIONAL SIECIFICATION.
New or Improved Attachment for Air Pumps used for Inflating
Pneumatic Tyres.
We, GEORGE WASHINGTON BACON, of 127, Strand, in the County of London,
Publisher, and THOMAS BEST, of 33, Hercules Road, also in the County of London,
Clerk, do hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide a detachable and portable leg or sup-
port by means of which an ordinary hand-air-pump may, when in use, be sup-
ported from the ground, and thus used as a foot-pump," enabling both hands to
be used to compress the air and thus economising the muscular exertion.
"
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The said leg or support may be secured, by means of a loose union at its upper
end, to the usual outlet nozzle of an ordinary air pump, and is suitably formed or
bent so that its lower end may rest upon the ground under the pneumatic tyre (in
which case it is held down by the weight upon the said tyre), or under the foot of
the operator.
The upper end of the said leg or support is suitably formed to receive the said
union in such a manner that the said union may be free to revolve with the pump
round a common axial line, while it is prevented from receiving motion in the
direction of the said axial line.
The upper end of the said union is suitably screwed or otherwise adapted to be
temporarily connected to the nozzle of the pump, and its lower end is adapted to
receive the usual short length of rubber tubing whereby the pump is connected
to the nozzle of the tyre valve.
1000
CUMPLEIE DIE
New or Improved Attachment for Air Pumps used for Inflating
Pneumatic Tyres.
We, GEORGE WASHINGTON BACON, of 127, Strand, London, Map Publisher, and
THOMAS BEST, of 33, Hercules Road, Lambeth, Clerk, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly

page_text: described and ascertained in and by the following statement, reference being had
to the accompanying drawing forming. part of this specification;-
_
The object of our invention is to provide a detachable and portable leg or sup-
port by means of which an ordinary hand-air-pump may, when in use be sup-
ported from the ground, and thus used as a foot-pump" enabling both hands to
be used to compress the air and thus economising the muscular exertion.
The said leg or support may be secured, by means of a loose union at its upper
end, to the usual outlet nozzle of an ordinary air pump, and is suitably formed or
bent so that its lower end may rest upon the ground under the pneumatic tyre (in
which case it is held down by the weight upon the said tyre) or under the foot of
the operator.
The upper end of the said leg or support is suitably formed to receive the said
union in such a manner that tlie said union may be free to revolve with the pump
round a common axial line, while it is prevented from receiving motion in the
direction of the said axial line.
The upper end of the said union is suitably screwed or otherwise adapted to be
temporarily connected to the nozzle of the pump, and its lower end is adapted to
receive the usual short length of rubber tubing whereby the pump is connected
to the nozzle of the tyre valve.
DESCRIPTION. OF THE DRAWING.
Figure is a side elevation of our improved attachment.
Figure 2 is a plan of the foot-piece of the said attachment.
Our invention consists of a leg A, of sufficient length to support an ordinary.
air-pump above the tyre-valve.
The said leg. is provided at its lower end with a laterally projecting foot-piece B;
the said foot-picce projecting from the said leg, so as to rest upon the ground,
either under the tyre intended to be inflated or under the foot of the operator.
The said foot-piece is preferably flattened and spread near its extremity in a hori-
zontal direction as shown in Figure 2, and has a projection B¹ on its underside
which forms a bearing point for our improved attachment when in use and this
bearing point is preferably in a line with the axis of the said pump in order to
prevent bending strains in the parts when connected and in use.
The upper surface of the said foot-piece may be slightly concave to receive the
tyre and the said foot-piece may be formed in one piece with the leg or as a
separate piece rigidly attached to the said leg.
The said leg or support when in use is connected at its upper end to the outlet
nozzle of the air-pump. In the drawing we have shown a laterally projecting arm
formed on or rigidly fixed to the upper end of the said leg the said arm having a
bearing for a suitable union C, which may revolve axially within the said bearing
while it is prevented by flanges or other suitable means from being removed there-
from, The said union is suitably screwed or otherwise adanted at its upper end
to receive the outlet nozzle of the pump, and at its lower end has a reduced exten-
sion to receive the short length of rubber tubing D, by which the pump is con-
nected to the tyre-valve. According to this arrangement, the pump, when mounted
on our improved attachment may be revolved around its axis together with the said
union C, and the said rubber tubing D, for the purpose of attaching the rubber
tubing to the tyre-valve while the leg A, remains stationary.
We do not however, confine ourselves to the above method of attaching the said
leg to the outlet nozzle of the pump, but without departing from our invention,
we may use any suitable means of connection between the leg or support A; and the
outlet nozzle of the pump.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
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A removable attachment for air pumps for pneumatic tyres consisting of the leg

page_text: or support A, with foot-piece B, formed in one piece with or rigidly attached to the
said leg, the said leg being provided with any suitable means of attachment to the
outlet nozzle of the said air-pump.
Dated this 1st day of December 1898.
GEORGE WASHINGTON BACON.
THOMAS BEST.