New or Improved Attachment for Air Pumps Used for Inflating Pneumatio Tyres.
Year: 1896

page_text: Date of Application, 18th Aug., 1896
Complete Specification Left, 18th May, 1897-Accepted, 3rd July, 1897
New or Improved Attachment for Air Pumps Used for Inflating
Pneumatio Tyres.
We, GEORGE WASHINGTON BACON, of 127 Straud, in the County of London-
Publisher, and THOMAS BEST of 83 Hercules Road, also in the County of London,
Clerk, do hereby declare the nature of this invention to be as follows:-
Our invention has for its object a folding or collapsable support which may be
secured to the outlet of an ordinary air pump, or upon the barrel of the pump, and
is of a construction that will enable said pump to be held by the foot of the operator,
or under the tyre when in use, and allow the operator to use both hands in
compressing the air, and so economising the muscular exertion.
For this purpose we employ a union of any desirable form of such size that the
same may be secured on to the usual outlet nozzle of an ordinary air pump, and will
receive on its opposito end the usual short length of tubing whereby the pump is
connected to the nozzle of the tyre valve. To this union, or a flange or other pro-
jection thereon, is connected an adjustable leg or support of suitable form provided
at its free ond with a hinged or folding foot-piece on which the foot of the operator
may be placed when the pump is in use, or which may be placed under the tyre on
the ground.
This leg or support may be either hinged to the union so that it will fold back
upon the pump when not in use, or it may be telescopic, or otherwise collapsable, to
permit of its being arranged in a compact or portable form when not in use.
1000
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 88 Hercules Road also in the County of London,
Clerk 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, reference being had to the accompanying drawing forming.
nart of this specification-

page_text: The object of this invention is to provide a leg or support which may be attached
to an ordinary air pump for inflating pneumatic tyres & the like, and of such a con-
struction as to enable the said pump to be operated by placing one end of the said
leg or support upon the ground where it can be held by the foot of the operator
while in use, and be capable of being arranged in a compact or portable form when
not in use, or removed from the pump & carried separately.
One advantage of our invention is that by its use a tyre can be inflated with much
less muscular exertion than by the usual method. The pump being held by the
foot, both hands can be used to compress the air, and the said pump being raised
a considerable distance from the ground the operator can maintain a more upright
position while using the same, and will thus experience less fatigue.
Another advantage of our invention is that it can be readily attached to almost
any kind of pump now in use, and may be carried attached to the pump, in the
pocket, or in the usual cycle tool-bag; thus almost any ordinary air pump may be
instantly converted from a hand pump to a foot pump, or vice versa, at the will of
the operator.
According to one method of carrying out our invention, we employ a union of
suitable form A Figure 1 having a small longitudinal passage for the exit of air from
the pump, and having at one end a screwed socket to enable
to be screwed on to
the outlet nozzle of the pump. At the opposite end of the union is a continuation
of reduced diameter & screwed on the outside to enable it to receive the socket
attached to the usual short length of rubber tubing which accompanies the pump,
and by which the pump is connected to the tyre G. The outer circumference of
the union has a wide groove or recess in which is fitted the strap or collar B in
such a manner that the union can revolve easily within it; the ends of the strap are
not brought quite close together but are bent out laterally from the axis of the
union & left slightly apart. In the interval between the cheeks formed by the ends
of the strap we fit oue end of the leg or support O. The three parts are then
fastened together by means of a small bolt D, furnished with nut, or by a similar
device; this bolt may be slackened so as to allow the leg to fold back or be tightened
so as to hold the leg steady when in uso. The end of the leg C carries a hinged.
foot piece E.
In the drawing Fig. 1 shows our invention attached to an ordinary air pump.
The firm lines of the drawing show its position when in use, & the dotted lines
show its position when folded back against the side of the pump barrel when not
in use.
According to a modification of our invention wo form the union with a bent.
passage for the air, this passage terininates in a nozzle at the side of the union,
which receives the short length of rubber tubo; in this modification the leg or
support is socured to the union at the end opposite the outlot of the pump, and in a
line with the axis of the pump barrel.
We may also omit the hinged joint F at the upper end of the leg or support, &
by a modification of the union reverse the attachment upon the pump so as to lie
compactly against the pump barrel when not in use, or be removed & carried
separately from the pump.
But in all cases wo attach the upper end of the leg or support to the pump by &
rigid connection so that the whole can move upon a centre of motion at the lower
end of the leg & ou, or as near the ground, as possible, in order to prevent bending
strain upon the said leg or its connection with the pump.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we wish it to be understood
that wo do not claim the hinged foot piece E, but we declare that what we do
olaim is
1st. In a removable attachment for an air pump for pneumatic tyres the leg
or support C adapted to be attached to or detached from the said air pump and

page_text: provided with the joint F at its upper end, by which it may be rigidly held in posi-
tion while in use or relaxed so as to allow the leg to fold back upon the pump, in
combination with a hinged foot piece E substantially in the manner and for the
purpose described.
2nd. In a removable attachment for an air pump for pneumatic tyres the leg or
support C adapted to be rigidly attached to or detached from the said pump, in
combination with a hinged foot piece E substantially in the manner and for the
purpose described.
THOMAS BEST.
G. W. BACON.