Improvements in Inflating Pumps for Pneumatic Tyres.
Year: 1896

page_text: Date of Application, 5th Aug., 1896
Complete Specification Left, 4th May, 1897-Accepted, 5th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Inflating Pumps for Pneumatic Tyres.
I, SAMUEL BROMLEY GARRARD, of 49 Foregate Street, Worcester, in the
County of Worcester, Solicitor, (a communication from Robert Wallace Glen Lee
Braddell, of Singapore, Straits Settlements, Barrister at Law), do hereby declare
the nature of this invention to be as follows:-
My invention relates to inflating pumps for pneumatic tyres and my object is
to produce a portable step pump, which will have the advantages of the large
stirrup pumps so far as rapid inflation is concerned while it is of moderate weight
and ready portability.
My invention consists in arranging a pump with a step attachment so that the
step and the air tube may be inserted within the pump.
The pump then presents the outward appearance of a plain tube with caps
upon its ends and it is readily attachable to any convenient part of the cycle
frame.
In carrying my invention into effect in accordance with one modification, I con-
struct a pump having the usual piston or pump bucket of leather or other suitable
material. The piston rod I form as a long tube which I pass through a suitable
screwed gland or plunger stop. At the end of the piston rod I form a tubular
handle of preferably the same diameter as the pump barrel. This tubular handle
is closed at its end by a screwed plug carrying two screws, one at each end, and a
milled cylindrical surface in the middle. To one part of one surface of this screw
plug I attach a screwed projecting piece hinged at one end to form the step piece.
I prefer to hinge this step piece somewhat stiffly. To the other part of the same
surface I affix or I form with it a screw nipple having an aperture leading through
the plug. This nipple connects up in any suitable manner to the rubber air tube
which leads from the pump to the pneumatic tyre. I provide a screw cap to screw
upon the outer screw of the said screwed plug. At the lower end that is the
compression end of the pump barrel, I provide a screw cap screwed with the same
thread as that of the screwed plug just described.
When the pump is packed up for carrying, the step end (straightened out at its
hinged step end) and the air tube are both projected within the pump handle and
tubular piston rod. Both screw caps are inserted so that a closed tube is formed
which looks neat and excludes all dust or mud.
When the pump is to be used for inflating the tyres, the cap is screwed off the
cylinder end, the screwed plug is removed from the handle end and its cap is taken
off. That end is then screwed into the cylinder end leaving the step projecting
together with the air connecting tube. The step is hinged at or near right angles
to be convenient for the foot, and the tube is connected to the tyre, the cylinder
cap is then screwed into the open handle end and the pump is complete, ready for
nflation.
To operate the pump the foot is placed upon the step and the pump is operated
in the same way and with the same ease as a stirrup pump.
By my invention I am enabled to produce a pump large enough to allow of
inflation with only a few strokes and at the same time quite portable and of neat
appearance. It is to be understood that although I have only described one

page_text: modification whereby my invention is carried into effect yet the details may be
modified without departing from the essential features.
Dated this 5th day of August. 1896.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.
improvements in inflating Pumps for Pneumatic Tyres.
1, SAMUEL BROMLEY GARRARD, of 49 Foregate Street, Worcester, in the
County of Worcester, Solicitor, (a communication from Robert Wallace Glen Lee
Braddell of Singapore, Straits Settlements, Barrister at Law) 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 :-
My invention relates to inflating pumps for pneumatic tyres and my object is to
produce a portable step pump, which will have the advantages of the large stirrup
pumps so far as rapid inflation is concerned while it is of moderate weight and
ready portability.
My said invention consists in providing a pump with a step attachment so
arranged that the said step together with the air tube or flexible connection admit
of being inserted within the interior of the pump, when not required for use.
The pump then presents the outward appearance of a plain tube with caps
upon its ends and it is readily attachable to any convenient part of the cycle
frame.
In carrying my invention into effect in accordance with one modification
I construct a pump having the usual piston or pump bucket of leather or other
suitable material. The piston rod I form as a long tube which I pass through a
suitable screwed gland or plunger stop. At the end of the piston rod I form a
tubular handle of preferably the same diameter as the pump barrel. This tubular
handle is closed at its end by a screwed plug carrying two screws, one at each end
and a milled cylindrical surface in the middle. To one part of the surface of
this screw plug I attach a screwed projecting piece hinged at one end to form the
step piece. I prefer to hinge this step piece somewhat stiffly. To the other part
of the same surface I affix or I form with it a screw nipple having an aperture
leading through the plug. This nipple connects up in any suitable manner to the
rubber air tube or flexible connection which leads from the pump to the pneumatic
tyre. I provide a screw cap to screw upon the outer screw of the said screwed
plug. At the lower end that is. the compression end of the pump barrel I provide
a screw cap screwed with the same thread as that of the screwed plug just
described.
When the pump is packed up for carrying the step end (straight out at its hinged
step end) and the air tube are both projected within the pump handle and tubular
piston rod. Both screw caps are inserted so that a closed tube is formed which
looks neat and excludes all dust or mud.
When the pump is to be used for inflating the tyres the cap is screwed off the
cylinder end, the screwed plug is removed from the handle end and its cap is taken
off. That end is then screwed into the cylinder end leaving the step projecting
together with the air connecting tube. The step is hinged at or near right angles
to be convenient for the foct, and the tube is connected to the tyre, the cylinder
cap is then screwed into the open handle end and the pump is complete ready for
inflation,

page_text: To operate the pump the foot is placed upon the step and the pump is operated
in the same way and with the same ease as a stirrup pump.
By my invention I am enabled to produce a pump large enough to allow of
inflation with only a few strokes and at the same time quite portable and of neat
appearance. It is to be understood that although I have only described one
modification whereby my invention is carried into effect yet the details may be
modified without departing from the essential features.
Figure 1 of the accompanying drawings represents an elevation of a pump
constructed according to my invention, and showing the appearance which the
same presents when step and flexible connection are stowed away within the interior
of the same.
Figure 2 represents the said pump, with the tubular handle and the adjacent
parts of the barrel and hollow piston rod in section, showing the flexible connection
and step in the inside thereof.
Figure 3 represents, partly in elevation and partly in section, the pump with the
step and connection withdrawn from the interior of the same and screwed onto the
lower or compression end of the barrel, in position ready for use.
Figure 4 is an elevation of the step, flexible connection and double screwed plug
carrying them, separately.
Figure 5 is an elevation of the lower end of the pump, with the connection
and step or rest fitted thereto and in the positions which they assume when
in use.
Figure 6 shows a cyclist using such a pump.
The same letters of reference indicate corresponding parts in the several figures
of the drawing.
The barrel a', of the pump a, is provided with the usual leather or other pump
bucket or piston a², carried at the lower end 6', of the tubular piston rod b, which
passes through a gland or stop 62, screwed into the interiorly wormed upper end a³,
of the said pump barrel and carries at its upper part 63, the tubular handle c, the
inside top of which is screwed at c', and is adapted to receive the screwed part d',
of the double screwed plug d, carrying the step or rest e, and flexible air tube or
connection f, and consisting of two screws d', d2, separated from one another by a
milled collar d³. The said step consists of a projecting piece or leg, of suitable
length, and having hinged (preferably stiffly) to its lower end e', the step piece or
rest e, which, when the pump is being used in inflating a wheel tyre, comes upon
the ground and is steadied by the user's foot being placed upon the same, as shown
in Figure 6, whilst the connection f, for coupling up the tyre valve and pump,
consists of the usual flexible piece of tubing, terminated at one end by the
adapter f, and secured at its other end to a nipple d', carried upon or formed
integral with the screw d', and with an air passage d³, leading through the said
plug and nipple. When the pump is out of use, as in Figures 1 and 2, the outer
screw d³, is covered by the cap de, but when in the positions shown in Figure 3,
then this said screw d; worms into the inside screwed lower end at, of the pump
barrel, with the collar d³, abutting against the edge thereof. At other times, this
lower interiorly wormed end is closed by the screw cap a³.
When the pump is required to be packed up, the step with its hinged rest end
straightened out or brought into line with the projection carrying it, and the
flexible air tube are introduced into the outer open end of the tubular handle
which is closed by the screw d', of the plug d. The caps d and a are then screwed
into their respective positions, thus forming a closed tube having a neat appearance,
and effectually excluding all dust and mud. Then when the pump is required to
be used for inflating a tyre, the caps d and a removed, and the plug d, carrying
the step and connection is unscrewed from the end of the tubular handle. The
screw d, is next wormed into the lower end a', of the barrel and the flexible
connection made fast to the tyre valve, after which the rest piece of the step is
turned at a convenient angle with respect to the projection carrying it, and then
placed upon the ground. The upper open end of the pump handle is now closed

page_text: by screwing thereinto the cap a', when the pump is now ready for use in inflation,
and being steadied by the foot on the rest, is operated in the same way and with
the same ease as a stirrup pump.
I am thus enabled to produce a pump which, whilst being sufficiently large to
effect inflation with but a few strokes of the piston, is at the same time portable
and neat in appearance.
I wish it to be understood that I do not limit myself to the particular con-
struction herein described and shown in the drawings which only set forth one
modification of my improved pump, the details of which may be varied and modified
without departing from the nature of my invention.
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 inflators or air pumps for pneumatic tyres, carrying the flexible con-
nection or air tube and a foot-rest or step upon one end of a screwed plug or
pummel, or upon one end a plug or pummel carrying two screws with a collar
between them, with one part of the said screw, or one of the said screws, adapted
to take into the interiorly wormed upper end of the tubular handle or grip and the
other into the inside screwed lower end of the pump barrel, substantially for the
purpose described and set forth.
Secondly. A detachable and interchangeable fitting for air pumps or inflators,
consisting of a double-screwed plug, carrying, upon one end, a jointed foot-rest or
step, side by side with a flexible connection with an inlet hole to the same
directed through the said plug, substantially as and for the purpose described and
set forth.
Thirdly. The improvements in the construction, arrangement and combination
of the parts of air pumps or inflators, substantially as and for the purpose herein
described and set forth."
Dated this 3rd day of May 1897.
SAMUEL BROMLEY GARRARD,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.