Improvements in, or Additions to, Pneumatic Tyre Inflators or Air Pumps.
Year: 1896

page_text: Date of Application, 4th Nov., 1896
Complete Specification Left 30th June 1897-Accepted. 31st July, 1897
PROVISIONAL SPECIFICATION.
Improvements in, or Additions to, Pneumatic Tyre Inflators or
Air Pumps.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company Limited, of Bournbrook near the City of Birmingham,
do hereby declare the nature of this invention to be as follows:-
This invention principally relates to that type of inflator for pneumatic tyres
known as stirrup inflators, principally used for inflating tyres in shops and large
tyres, such as those of road carriages and the like.
My invention consists primarily in providing a screw upon the handle part to
take the loose end of the rubber connection when out of use, and this serves a
two-fold purpose; first, it prevents the handle and piston rod sliding out of the
barrel when not required, and secondly, it takes the rubber connection up out of
the way.
Thus a stirrup pump constructed according to my improvements comprises
& barrel or cylinder, terminated at one end by a stirrup, and having working to
and fro within the barrel, a piston rod and piston of the ordinary or any special
construction, with the said rol sliding through a gland or guide fitted in the open
top end of the barrel and fitted with a handle at its outward end, to one side of
the ferrule of which said handle, a male screw or other connection is fitted, adapted
to receive the swivelling female screw terminating the fore end of the flexible
connection, whose other or after end is attached to a valve standing out at right
angles to the foot of the barrel at its junction with the stirrup.
This valve may consist of a chamber enclosing within it a check normally closed
by a spring, and with the mouth inside screwed for receiving the metallic fitting
at the after end of the flexible connection.
100%
CHARLES THOMAS BROCK SANGSTER,
By Henry Skerrett, Agent for Applicant.
LETE SPECIFT
ION.
Improvements in, or Additions to, Pneumatic Tyre Inflators or
Air Pumps.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company Limited, of Bournbrook near the City of Birmingham,
do hereby declare the nature of this invention and in what manner the same is

page_text: to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention principally relates to that type of inflator for pneumatic tyres
known as stirrup inflators, principally used for inflating tyres in shops and large
tyres, such as those of road carriages and the like.
My invention consists primarily in providing a screw or other attachment upon
the handle part of the inflator or pump, or upon the upper end of the piston rod
to take the loose end of the rubber, connection when out of use, and this serves
a two-fold purpose; first, it prevents the handle and piston rod sliding out of the
barrel when not required, and secondly, it takes the rubber connection up out
of the way.
Figure 1 of the accompanying drawings represents in side elevation, a stirrup
inflator or "shop" pump provided at the handle end with a screw attachment
or tie up for taking the nozzle end of the flexible pipe or connection, according
to my invention. The said view shows the end of the flexible connection engaged
with the said screw, whereby the said connection is tied or held up out of the way
when not required for use.
Figure 2 is a like view as Figure 1, .with the connection disengaged from the
tie-up or attachment screw.
Figure 3 is a front elevation of Figure 1.
Figure 4 represents the handle end of the pump and the attachment end of the
flexible connection, the latter being provided with an adapter" suitable for
taking upon a tyre valve.
Figure 5 represents, upon an enlarged scale, a vertical section of the handle
part and its tie-up attachment, upon the dotted line, Figure 3.
Figure 6 is an elevation, upon the same scale as Figure 5, of the said handle
part, with the nozzle end of the flexible connection removed showing the position
of the attachment screw.
Figure 7 is a section of the swivelling nut or nozzle end of the flexible con-
'nection, with the shouldered stem by which it is attached to the said connection
shown in the act of being, passed through the screwed interior thereof into its
position of use, i.. with the enlarged end thereof coming against the shoulder
formed by the contraction of the bore of the nozzle or nut.
Figure 8 represents, partly in elevation and partly in section, the attachment
screw and its integral stem whereby it is rivetted to the handle.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
Thus the stirrup pump constructed according to my improvements comprises
a barrel or cylinder a, terminated at one or the lower end at by a stirrup a, and
having working to and fro within the barrel, a piston rod ³, and piston of the
ordinary or any special construction, with the said rod sliding through a gland
or guide, fitted in the open top end, of the barrel and fitted with a handle b,
at its outward end, to one side of the ferrule of which said handle, a male
screw, is fitted to said screw being adapted to receive the swivelling female
screw terminating the fore end of the flexible connection c, whose other or
after end, is attached to valve e standing out at right angles to the foot of
the barrel at its junction with the stirrup.
This valve may consist of a chamber enclosing within it a check normally closed
by a spring, and with the mouth inside screwed for receiving the metallic fitting
at the after end of the flexible connection.
The male screw 2, has a stem 63, which passes through the ferrule 61, the foot b,
of the handle and the upper end a", of the piston rod, whilst the swivelling female
screw or inside screwed nut cl, is secured to the flexible connection, by the axially
bored stem e, having a collar e', at one end which comes against the face of the
contracted inside part e, of the nut whilst the part is cut with a series of aunular

page_text: grooves, for increasing the hold of the rubber tube thereon, whilst the plain
part c, forms a neck for the female screwed nut to swivel upon.
When the connection is to be applied to a tyre valve, an adapter f, is first
screwed into the mouth of the swivelling nut c', a leather washer g, being inter-
posed between the back or inner end of the same and the outermost face of the
collar e', to ensure a sound or air-tight joint.
Instead of employing a screw as the means of tying up or securing the flexible
rubber tube, I may employ a catch, snap or like connection, and instead of the
said attachment being secured directly to the handle part, it may be fitted to a
suitable part of the piston rod, at a point a little below the handle.
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:-
In stirrup inflators or air pumps, providing a screw or other attachment upon
the handle or upper end of the piston rod for taking the loose end of the flexible
rubber connection, when out of use, substantially as and for the purposes described
and set forth.
CHARLES THOMAS BROCK SANGSTER.
By Henry Skerrett,
24 Temple Row Birmingham, Agent for Applicant.