Improvements in Pneumatic Tyres and Rims for same, suitable for the Wheels of Bicycles, Tricycles, and other Vehicles.
Year: 1893

page_text: Date of Application, 27th Nov., 1893
Complete Specification Left, 20th Dec., 1893-Accepted, 3rd Feb.,
1894
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres and Rims for same, suitable for
the Wheels of Bicycles, Tricycles, and other Vehicles.
I TIMOTHY MURPHY of Number 73 and 74 O'Connell Street Clonmel in the
County of Tipperary Agricultural Engineer do hereby declare the nature of this
invention to be as follows:-
of rim
"
The said improvements consists in the placing of one or more protecting bands
or flaps all around upon the outer circumference of the air tube of pneumatic tyres.
Said band is composed of a combination rubber and canvas or other such like
substance and is permanently attached all around the circumference of one edge
to said air tube of which it forms a part. The said air tube is also composed
of a combination rubber and canvas and is a single tube that is there is no other
cover used over it. The only protection against puncture is the said band or
bands which forms a part of said air tube. Fig. 1 is a cross section of said air
tube and band and rim. "A" is the said band which encircles the air tube "t" to any
desired distance around its radius as shewn from "O" to "C." Said band "A
is permanently attached all around the circumference of one edge to the said
air tube "" at "C" of which it forms a part. If a puncture or fracture
occurs in the air tube under the said band or flap "A" the air tube is deflated
in the usual way and the said band can be turned over with the hand thereby
" to
exposing the air tube all around from "O "C." "D" and "R" is the
rim of wheel and upon said rim the air tube "t" rests. The part of the rim
66 R." The part of
shewn at "D" is detachable from the part shewn at
rim "R" is provided with a flange shewn at "F" and the part "D" when placed
in position against the part "R" it is connected by the bolt "P" to the said
flange
"F." For the attaching or detaching of said air tube "" the said part
"D" is removed and when the air tube is placed in position in the part
of the rim "R" the part of the rim "D" is placed in position in connection
with the part "R" and fastened to the flange "F" by the bolt "P." It is
Bufficient to detach the part "D" of said rim for only about one fifth of the
circumference of said rim. The said air tube "t" may be cemented on to the
rim of wheel in the usual way. A second band may be used to overlap the said
band "A" from "O" to "C" one edge of it to be permanently attached all
Said bands may be
around its circumference to said air tube "t" at "S.”
provided with cords or wires. Said cords or wires to be encased in the edges
all around the circumference of said bands. The edges of said bands are shown
at "0."
A flexible wire network or chain may be inserted in said band or
bands all around their circumference to more effectually protect said air tube "t"
from getting punctured. The usual air valve is attached to said air tube "t"
through which the air is pumped into the tube in the ordinary way. At drawing
Fig. 2 is shewn another form of said band. "N" is the said band and it
encircles the said air tube "M in a similar way as shewn and described in
Fig. 1. It is made detachable and is kept on partly by the projections formed
on air tube "M" at "ii" and by corresponding projections formed on said band "N"
shewn at "uu
but the principle fastening is the outward pressure of the air
tube M" all around against the inner circumference of said band "N." The said
"N." is removed by deflating the air tube in the ordinary way when it can
be removed with the hand. For repairing a puncture in the air tube a small
patch or strip of canvas coated with solution is placed over same.
band
"
"
The said

page_text: band "N" Fig. 2 may be also provided with continuous cords or wires encased
all around in its edges shewn at "u u." Said flexible wire netting or chain
may be also used as a preventive against puncture in the detachable air tube
of pneumatic tyres by being inserted in or attached to the cover of said detachable
tyre all around its circumference or in conjunction with the said band "A" Fig. 1
in the manner herein before described.
The said band or bands "A" Fig. 1 may be connected with the rim or spokes
of wheel all around the edge shewn at "O" by any desired number of wire rods,
one end of said wire rods which is provided with an eye is connected to the edge
of said band shewn at "O" at intervals all around its circumference and the
other end of said rods is provided with a hook which is made to catch upon
either the spokes of wheel or upon corresponding hooks placed in the rim of
said wheel. Said air tube ""Fig. 1 may be provided with an endless wire hoop
or hoops either round or flat as shewn at "e." Said hoops are placed and made
to fit inside in said air tube "t" all around its circumference and are intended
to more effectually fasten said air tube "t" to said rim of wheel as shown at "e."
Dated this 24th day of November 1893.
COMPLETE SPECIFICATION.
Improvements in Pneumatic Tyres and Rims for same, suitable for
the Wheels of Bicycles, Tricycles, and other Vehicles.
I TIMOTHY MURPHY of Number 73 and 74 O'Connell Street Clonmel in the
County of Tipperary Agricultural Engineer 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 said improvements consist in the placing of one or more protecting bands or
flaps all around upon the outer circumference of the air tube of pneumatic tyres.
Said band is composed of a combination of rubber and canvas or other such like
Bubstance and is permanently attached all along the circumference of one edge to
said air tube of which it forms a part. The said air tube is also composed of a
combination of rubber and canvas and is a single tube, that is,.there is no other
cover used over it. The only protection against puncture is the said band or bands
which forms a part of said air tube as per drawings left with Provisional
Specification which I now adopt. Fig. 1 is a cross section of said air tube and
band and rim. "A" is the said band which encircles the air tube "t" to any
desired distance around its circumference as shewn from "0" to "C." Said
band "A" is permanently attached all along the circumference of one edge to the
said air tube "t" at "C" of which it forms a part.
If a
a puncture or fracture occurs in the air tube under the said band or flap "A"
the air tube is deflated in the usual way and the said band can be turned over
with the hand thereby exposing the air tube all around from "O" to "C."
"D" and "R" is the rim of wheel and upon said rim the air tube "t" rests.
The part of the rim shewn at "D" is detachable from the part shewn at "R."
The part of rim "R" is provided with a flange shewn at "F" and the part "D"
when placed in position against the part "R" is connected by the bolts "P" to
the said flange "F." For the attaching or detaching of said air tube "t" the said
part of rim "D" is removed and when the air tube is placed in position in the part
of the rim "R" the part of the rim "D" is placed in position in connection with
the part "R" and fastened to the flange "F" by the bolts "P." It is sufficient
to detach the part "D" of said rim for only about one fifth of the circumference
of said rim.
The said air tube "t" may be cemented on to the rim of wheel in the usual

page_text: way. A second band may be used to overlap the said band "A" from "O"
to "C" one edge of it to be permanently attached all around (its circumference)
to said air tube "t" at "S." Said bands may be provided with cords or wires.
Said cords or wires to be encased in the edges all around the circumference of said
bands. The edges of said bands are shewn at "O." A flexible wire net work or
chain may be inserted in said band or bands all around their circumference to more
effectually protect said air tube "t" from getting punctured. The usual air valve
is attached to said air tube "t" through which the air is pumped into the tube in
the ordinary way.
.
Fig. 2 shows another form of said band. "N" is the said band and it encircles
the said air tube "M" in a similar way to that shewn and described in Fig. 1. It
is made detachable and is kept on partly by the projections formed on air
tube "M" at "ii" and by corresponding projections formed on said band "N"
shewn at uu," but the principle fastening is the outward pressure of the air
tube "M" all around against the inner circumference of said band "N." The
said band "N" is removed by deflating the air tube in the ordinary way when it
can be removed with the hand. For repairing a puncture in the air tube a small
patch or strip of canvas coated with solution is placed over same. The said
band "N" Fig. 2 may be also provided with continuous cords or wires encased all
around in its edges shewn at "uu." Said flexible wire netting or chain may be
also used as a preventive against puncture in the detachable air tube of
pneumatic tyres by being inserted in or attached to the cover of said detachable
tyre all around its circumference or in conjunction with the said band "A" Fig. 1
in the manner hereinbefore described. The said band or bands "A" Fig. 1 may be
connected with the rim or spokes of wheel all around the edge shewn at "O" by
any desired number of wire rods one end of said wire rods which is provided. with
an eye is connected to the edge of said band shewn at "O" at intervals all around
its circumference and the other end of said rods is provided with a hook which is
made to catch upon either the spokes of wheel or upon corresponding hooks placed
in the rim of said wheel. Said air tube "t".Fig. 1 may be provided with an endless
wire hoop or hoops either round or flat as shewn at "e."
"
"
t
Said hoops are placed and made to fit inside in said air tube " "all around its
circumference and are intended to more effectually fasten said air tube "t" to said
rim of wheel as shewn at "e." Said protecting band or flap "A" Fig. 1 may be
extended to any desired distance around the air tube "t and made to fit inside
rim as shewn at " in supplementary drawing Fig. 3. In said drawing Fig. 3
"P" is the air tube. "B" is the said band or flap which is connected to the said
air tube at "e" of which said air tube it forms a part. The verge of said band "B"
is provided with a flange all around the circumference shew at "." Said flange
fits into a groove formed in the rim "" and is held fast in said groove by the
pressure of the air in said tube, or their may be either a cord or wire or a chain
inserted all around in the flange of said band at "x." The air tube in either
Figs. 1, 2, or 3 may be provided with projecting stops formed at any desired
intervals around its circumference shewn at "y" Fig. 3. Said stops fit into holes
or recesses formed in the said rim "" and are intended to resist the creeping of
said air tube. The said round or flat wires shewn at "e" Fig. 1 and at "A" Fig. 3,
which are intended to press said air tube all around against said rim may be made
in one or more parts. Said parts are connected by spiral springs which are intended
to equalize the pressure of said wire on the said air tube or said wire rings may be
corrugated all around thereby causing them to expand and contract to equalize the
pressure on said air tube. Said air tube "P" Fig. 3 is provided with a flange all
around its circumference as shewn at "K." Said flange fits into a groove formed
in the rim "h," or their may be a cord or wires or a chain inserted in said flange
all around its circumference shewn also at "K." In the manufacture of said air
tube there may be one or more layers of canvas used of an open pattern so as to
admit of said canvas being embedded in the rubber of said air tube."

page_text: "
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) The formation of an air tube for pneumatic tyres in such a way that a part of
said tube is formed into bands or flaps as a protection against puncture as described
in connection with drawings Fig. 1. and Fig. 3.
(2) That a portion of said rim Fig. 1. is made detachable for the purpose of
admitting said air tube into the recess of said rim as described in Fig. 1.
(3) That said bands or flaps may be used either with or without the said cords
or wires or chains which may be encased in the edges of said bands or flaps shewn
at "O" Fig. 1. and at นน Fig. 2. and at ". "Fig. 3. and in the flange formed
66
"
on said air tube shewn at "K" Fig. 3.
(4) The placing of a detachable band around upon the said air tube as described
in drawing Fig. 2.
(5) The use of the said flexible wire netting as a further protection against
puncture described in connection with drawing Fig. 1.
(6) The placing of wires either flat or round in the said air tube for the purpose
of keeping said tube pressed around against said rim as described in drawings Fig. 1.
and Fig. 3.
(7) The severing of said round. or flat wires in one or more parts and connecting
said parts with spiral springs for the purpose of regulating the tension of said
wires on the said air tube.
(8) The providing of said air tube with projecting stops. Said stops are made
..to fit into holes or recesses formed in said rim shewn at "y" Fig. 3.
:
Dated this 18th day of December 1893.
TIMOTHY MURPHY: