Improvements in Inflating Devices.
Year: 1896

page_text: Date of Application, 10th Dec., 1396-Accepted, 29th May, 1897
COMPLETE SPECIFICATION.
Improvements in Inflating Devices.
I, HENRY LAWRENCE GULLINE, of the Village of Granby, in the County of
Shefford, and Province of Quebec, Dominion of Canada, Manufacturer, 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-
This invention relates to the inflating devices for use in connection with bicycle
tyres, air-cushions, and other inflated articles, and has for its object to further
improve the construction of the air-nipple thereof, which is carried by the article
to be inflated, and to simplify the construction and provide superior means for
preventing an entry of dust therein.
The improvements consist, first, in the simplified form of the valve proper,
secondly, in the improved means of connection between the air supply tube and the
nipple and thirdly, in a particular construction of cap adapted to be fitted over the
nipple when the supply pipe is removed.
Having thus referred to the object and principle of my invention, I will now
describe what I consider to be the most practical embodiment thereof in an inflating
device to be used for the inflation of bicycle tyres, reference being had to the
annexed drawings, forming a part of such description, in which like symbols
indicate corresponding parts and wherein
Figure 1 is a longitudinal vertical section of a portion of a bicycle-tyre with my
invention applied thereto.
Figure 2 an enlarged transverse vertical section of the nipple, taken on line 2, 2,
Figure 1.
Figure 3 a transverse horizontal section of same on line 3, 3, Figure 2.
Figure 4 an end view of nipple; and
Figure 5 a perspective view of an air supplying device with my improvement to
the supply tube thereof, such tube being partly broken away, and
Figure 6 a longitudinal section of the cap for the nipple.
a is a portion of the usual metal or wooden rim of a bicycle wheel, and a' the
hollow rubber tire thereof."
The body of the air nipple is of cylindrical form from the top to a point about
midway of its length, below which its entire exterior surface is enlarged somewhat,
as at ', and of a form other than circular-elliptical, for instance--the upper
portion of such enlarged and differently shaped portion fitting a corresponding
opening a in the rim a, so as to prevent any turning or twisting of the nipple in
the material in which it is set when the valve of the nipple is being operated. In
some cases it might be found desirable to form lugs with eyes through same,.
instead of the enlargement or elliptical form, to allow of the nipple being tied in
place by a wire fastening. The upper portion of the nipple is bored and screw
threaded to receive the valve proper, c, screw threaded to work therein, the inner
end or head portion of such valve being of conical forn and adapted to work upon
a corresponding seat c', preferably faced with soft metald and the valve has a
central opening or recess c² to receive the key of the air supplying device to be
described. A central air-passage g in the body leads from the boring for the valve
to the inner end of the nipple, where it preferably terminates in an enlargement or
Porce 8di

page_text: chamber g', in which I prefer to locate an auxiliary or check valve made of metal
in the form of a disc h.
As safeguards for the prevention of the entry of dirt, dust, soapstone, or any
other substance detrimental to the working of the parts in the nipple, I use a
flexible cap k of rubber or similar material of the longitudinal section shown in
Figure 6 and having an inwardly projecting annular flange about its opening,
adapted to take into an annular groove e encircling the body of the nipple. At
the opposite end of the nipple the second guard, in the form of a disc m, of woven
wire of very fine mesh, is placed across the mouth of the chamber g', in which the
check valve is located and held in place by the brazing or turning inward, as at n,
of the thinned end of the body, the movement of the valve proper being limited in
the same manner by the brazing or turning inward of the opposite thinned end of
the body.
The nipple is connected with the rubber tyre in any usnal way, although I prefer
to first cement the lower portion of the body, insert it in the customary rubber
collar o, and then bind it tightly by any suitable wire or other binding (indicated
at o') after which the collar o is cemented to the tyre.
To inflate the tyre, it is customary to force air through the nipple by means of
an atomizer or air pumping appliance of some kind, and in order to allow of the
valve being opened and closed while the conducting tube leading from the
atomizer to the nipple is connected with the latter I insert in the end of such tube
a metal key piece having a hollow cylindrical body p, with one end closed and
provided with a projecting tongue pl adapted to enter the slit c² of the valve and
turn same, suitable ears or wings q being formed on the body to afford a convenient
finger hold. An additional length of flexible tubing has one end secured to the
outer end of the body p and extends freely for the length of the tongue p¹ and also
having an inwardly projecting annular flange similar to that ' in the cap k about
its opening so that when the tongue is inserted in the slit of the valve the tubing r
is fitted over the body and the flange inserted in the groove e, as shown in
Figure 2, and its flexibility allows the rotation of the key piece a half turn in
either direction which is sufficient to secure the opening and closing of the valve.
In the inflating operation the air passes from the atomizer, through tuber, between
the loosely fitting screw threads on the interior of the body of the nipple and in
the exterior of the valve c, as well as through the grooves s, passage g and
chamber g' into the article to be inflated.
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
1. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
contracted at its inner end to form a valve seat, a valve of uniforan diameter
throughout its length and contained in such hollow cylindrical body portion,
moveable into and out of contact with such valve seat, a central opening or recess
extending from the outer end of such valve, an inflating device consisting of an
air supplying device, the discharge tube of which is detachably connected to such
nipple, and has located therein a cylindrical section with one end closed and
perforated and provided with a projecting tongue portion, the latter to take into
the outer end of the central opening in the valve, for the purpose set forth.
2. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
partially screw-threaded and contracted at its inner end to form a valve seat, a
valve of uniform diameter throughout its length and contained in such cylindrical
body portion, movable into and out of contact with such valve seat, a central
opening or recess extending from the outer end of such valve, such valve being
screw threaded to take into the screw threaded interior of the cylinder, and an
inflating device consisting of an air supplying device, the discharge tube of which

page_text: is detachably connected to such nipple and has located therein a cylindrical section
with one end closed and perforated and provided with a projecting tongue portion,
the latter to take into the outer end of the opening in the valve for the purpose set
forth.
3. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
contracted at its inner end to form a valve seat, a valve contained in such
cylindrical body portion, movable into and out of contact with such valve seat, a
central opening or recess extending from the outer end of such valve, an inflating
device consisting of an air supplying device the discharge tube of which is
detachably connected to such nipple and has located therein a cylindrical section
with one end closed and perforated and provided with lateral wing projections and
a projecting tongue portion, the latter to take into the outer end of the opening in
the valve for the purpose set forth.
4. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
contracted at its inner end to form a valve seat, a valve contained in such
cylindrical body portion, movable into and out of contact with such valve seat, a
central opening or recess extending from the outer end of such valve, a check-
valve located in the inner end of such nipple and an inflating device consisting of
an air supplying device, the discharge tube of which is detachably connected to
such nipple and has located therein a cylindrical section with one end closed and
perforated and provided with a projecting tongue portion, the latter to take into
the outer end of the opening in the valve, for the purpose set forth.
5. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
contracted at its inner end to form a valve seat, a valve contained in such
cylindrical body portion, the outer end of which is diminished to form a shoulder
and movable into and out of contact with such valve seat, a central opening or
recess extending from the outer end of such valve, the ends of such hollow
cylindrical body portion turned inward over the outer shouldered end of the valve,
an annular groove in the periphery of such cylindrical body, and an inflating device
consisting of an air-supplying device, the flexible discharge tube of which has an
inwardly projecting annular flange at its open end adapted to be detachably inserted
in said annular groove said tube having located therein a cylindrical section with
one end closed and perforated and provided with a projecting tongue portion, the
latter to take into the outer end of the recess or opening in the valve, for the
purpose set forth.
6. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, the opening therethrough being
contracted at its inner end to form a valve seat, a valve contained in such hollow
cylindrical body portion, the outer end of which is diminished to form a shoulder
and the inner end tapered, such valve being movable into and out of contact with
such valve seat, a central opening or recess extending from the outer end of such valve,
a check valve of disc form located in the inner end of such nipple and the ends of such
cylindrical body portion turned inward to hold such valve and check valve in place,
and an inflating device consisting of an air supplying device, the discharging tube of
which is detachably connected to such nipple and has located therein a cylindrical
section with one end closed and perforated and provided with a projecting tongue
portion, the latter to take into the outer end of the opening in the valve, for the
purpose set forth.
7. An inflating device consisting of a nipple secured to the article to be inflated
and formed of a hollow cylindrical body portion, provided with a dust-guard across
its inner end and the opening therethrough being contracted at its inner end to
form a valve-seat, a valve contained in such hollow cylindrical body portion, the
outer end of which is diminished to form a shoulder and the inner end tapered, such

page_text: valve being movable into and out of contact with such valve seat, a central opening
or recess extending from the outer end of such valve, and a detachable dust guard
in the form of a cap fitting over the outer end of such nipple, a check valve
located in the inner end of such nipple and the ends of such cylindrical body
portion turned inward to hold such valve and check valve in place, and an inflating
device interchangeable with said cap and consisting of an air supplying device, the
discharge tube of which is detachably connected to such nipple and has located
therein a cylindrical section with one end closed and perforated and provided with
a projecting tongue portion, the latter to take into the outer end of the opening in
the valve, for the purpose set forth.
8. The flexible cap having an inwardly projecting flange about its opening,
adapted to be sprung over a projection upon the part to which the cap is applied,
for the purpose set forth.
Dated this 10th day of December 1896
CARPMAEL & Co.,
Agents for the Applicant.