Improvements in the Application of Air Pumps to Bicycles and Tricycles.
Year: 1898

page_text: Date of Application, 26th Feb., 1898
Date of Application, 26th Feb., 1898
Complete Specification Left, 12th Nov., 1898-Accepted, 17th Dec., 1898.
PROVISIONAL DITCIFICATION.
Improvements in the Application of Air Pumps to Bicycles and
Tricycles.
I, JOSEPH CARTER, of Market Hill, Barnsley, in the County of York, Wine and
Spirit Merchant, do hereby declare the nature or this invention to be as
follows:-
The object of my present invention is to so arrange and construct the air pump
used for inflating the pneumatic tyres of bicycles and tricycles that the said
pump forms part of the frame of said bicycle or tricycle itself and is therefore
constantly with the machine and is not as hitherto a separate detachable or
additionally fixed accessory.
For this purpose I arrange and construct the vertical, oblique, or seat carrying
support of the frame so that a part of same forms the air-pump barrel, and the
seat or saddle carrying bar which fits therein I arrange to form the air-pump
piston or plunger.
A nipple or screwed projection is formed on the side of the said pump-barrel
having an orifice connecting the inner part of barrel at its lower end and a
flexible tubing having the usual back pressure valve therein is screwed up to said
nipple and also to the valve of pneumatic tyre when it is required to pump up
or inflate the tyre.
Where preferred two nipples or orificed projections may be arranged near the
bottom of said pump-barrel one extending on one side and the other on the
opposite side thereof in which arrangement two flexible tubes may be employed
to connect the two tyres of a bicycle to the pump whereby both tyres may be
inflated at the same time, or in the case of a tricycle three nipples and flexible
tubes may be arranged as will be obvious.
The saddle carrying bar is clamped or made tight to the frame in the usual
way and when it is required to use the air-pump it is only necessary to loosen
the clamp or nuts which hold the frame to the saddle-bar and then work tho
latter by the aid of the saddle up and down thereby operating the air-pump as
stated.
The pump barrel proper I prefer to commence a little below the jaw or clamp
for holding saddle bar in position on frame and I so arrange the plunger that the
clamp tightens only on that part which does not reach at any time the top end
bearing or cover of pump.
The flexible tube or tubes may be wound round the frame or that part of frame
which forms the barrel when not in use or they may be removed as desired, or a
cap may be arranged to screw on to a boss fixed on barrel side in such a way
that the flexible tubing will coil therein so as to be conveniently stored without
removal when not in use.
Dated thie 23rd day of February 1898

page_text: COMPLETE SPECIFICATION.
Improvements in the Application of Air Pumps to Bicycles and
Tricycles.
I, JOSEPH CARTER, of 7, Market Hill, Barnsley, in the County of York, Wine
and Spirit Merchant, 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; --
The object of my present invention is to so arrange and construct the air-pump
with its piston-rod and handle for operating the same, that it forms part of or
is contained within the frame of bicycle or tricycle, and in such a way that the
pump may be operated its full length of stroke without it being required to
remove the saddle, and none of its parts therefore are separate, detachable or
additional accessories.
For this purpose I arrange and combine my improved pump with the seat
pillar carrying support of frame or diagonal tube substantially in the manner
set forth by the aid of the accompanying sheet of drawings in which Fig. 1 is
a sectional elevation of my improvements in combination with the diagonal tube
of a bicycle or tricycle frame, and Fig. 2 is a front view of same drawn to
straight lines. Fig. 3 is a side view of a bicycle fitted with my improved air-
pump with the piston of said pump extended through the saddle and the flexible
tubing connected up to the valve on tyre ready for operating, and Fig. 4 is a
similar elevation of bicycle with flexible tubing stored away and pump handle
closed below saddle.
Similar letters of reference denote corresponding parts in each view.
The pump barrel B I commence below the seat carrying pillar C, and I extend
said barrel down the diagonal tube T. I screw into its bottom end a cover or
cap having a hole through its centre, and into which cap I fix a screw
nipple e¹ which has a corresponding hole through its centre and which extends into
the circular boss or box E for containing the flexible tubing H, the said tubing
being attached to the nipple e¹ and having the usual back pressure valve not
shown. The top of barrel B has a perforated cover 2 screwed into it.
For operating the pump I employ a hollow piston rod J having an ordinary
perforated piston j and washer 2 fixed to its lower end by a screw cap ³, and its
upper end I arrange with telescopic mechanism in such a manner that it may be
extended through the saddle S so as to get a full stroke, or to enable the piston 1
to be forced down to the bottom of barrel, which I find is absolutely necessary
for the proper and effective working of the pump.
This telescopic mechanism is composed of a closable tube K having a split
bell shaped lower end ¹ and a winged formed upper end k². Into the tube K
bears a rod L having a tapered swell at its lower end, and a screw formed
stem at its upper end on to which latter screws the operating handle M.
By unscrewing the handle M and pressing down the rod L the tapered swell
leaves the bell part which closes, thereby removing its friction from the inside
of hollow piston rod J, and the parts K and L may be then pressed down into
the piston rod J, and the handle M will descend beneath the saddle S.
The circular box E for containing the flexible tubing H is clamped by means
of clamps to the diagonal tube T and it has a cover e hinged to it, which is
held in closed position (when the tube H is coiled within the boss or box E) .
by a spring catch e.
The saddle S is either a divided one, or has a hole formed through it, in order
to enable the handle M to go below the same when not in use as will be well
understood.

page_text: It will be obvious that where desired two or more nipples e¹ may be employed
and a corresponding number of circular boxes E and tubes H in order that two
or more wheels may be inflated simultaneously.
I would here remark that I make no claim to the mere idea of applying any
form or arrangement of air pump and tubing with box to the diagonal tube of a
bicycle or tricycle frame but.
Having new particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
(1) The combination with the diagonal tube of a bicycle or tricycle frame, of
a pump barrel and piston, with hollow piston rod, having upper telescopic
mechanism for extending piston rod through saddle so as to enable the piston to
be forced to bottom of barrel. The hollow screwed nipple extending into hollow
lower cover of pump barrel and into a circular boss or box clamped or fixed to
diagonal tube, and containing the flexible tubing in coiled form when not in use,
said tubing being screwed to said extended hollow nipple substantially as com-
bined, arranged and set forth in the accompanying sheet of drawings.
(2) The combination within and upon the diagonal tube of frame of bicycle or
tricycle of an inner pump with extendable telescopic piston rod and fixed circular
tube storage boss or box substantially as described.
Dated this 11th day of November 1ovo.
JOSEPH CARTER,
Per H. F. Broughton,
Patent Agent, Barnsley.