Improvements in or relating to the Means or Mode of Constructing certain Metallic Tubular Parts of Cycles, but applicable to other. purposes where like Tubes are Employed.
Year: 1897

page_text: Date of Application, 27th Jan., 1897
Complete Specification Left, 27th Oct., 1897-Accepted, 8th Jan.,
1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Means or Mode of Constructing
certain Metallic Tubular Parts of Cycles, but applicable to other.
purposes where like Tubes are Employed.
We THOMAS SPENCER KENDRICK Mechanical Engineer, and ALFRED LEONARD
KENDRICK Mechanical Draughtsman, both of 52 Belgrave Road, Edgbaston
Birmingham do hereby declare the nature of our said invention to be as
follows:
Our Invention for improvements in or relating to the means
or mode of
constructing certain Metallic tubular parts of cycles, but applicable to other
purposes where like tubes are employed, consists substantially of the connecting
of Sections of metallic tubes to each other, or to sockets, lugs and fittings, our aim
and object being to remedy by a more simple and efficacious manner the processes
hitherto employed.
The utility of our Invention and its varied application will be understood by the
following.
In the construction of a frame for a cycle. We employ the ordinary sockets or
lugs. The tubular sections are cut off the required lengths, the external diameter
being of a size to fit into the internal diameter of the socket. We construct a
metallic ring of a size sufficient to pass over the socket, the interior may have a
plain or irregular edge of any configuration and is provided with a seat on each
side. When the tube is placed in the socket, and the ring upon the same and
properly adjusted, by the aid of tools or dies which surround or partly surround
the exterior surface of the said ring and with suitable power mechanical or other-
wise we compress the said ring, so that it is reduced in its size, at the same time
indenting or grooving both the socket and the tube, the ring socket and tube being
now inseparable and without a movement in any direction.
In some cases we may employ the tubing of a diameter large enough to pass
over the socket, and construct the said socket with an annular groove, when the
tube is thus passed over and the ring adjusted in position on the tube and over
the said groove the tools and power as above described is brought to bear, and the
ring is compressed and reduced in its size, forcing the tube into the annular groove.
It will be understood that the groove being previously prepared in the socket the
power required to reduce the ring is not so great, in this case also the parts are
inseparable and immoveable.
If tubes of a strong guage are employed and a support is required during the
operation of connecting the parts, we should employ a circular ring of a size
sufficient to pass into the interior of the tube or socket this ring would be provided
with a groove upon its periphery or surface equal in size to receive the tube or
Socket, when compressed (according to which mode is employed). In the
construction of this frame each connection between ring tube and socket is carried
out in the manner above set forth.

page_text: The mode as above described may be termed a "throttle" connection or fastening.
For a hub of a cycle we take a piece of tube the required length, guage and
diameter. We employ two rings as above described of a Suitable shape or
configuration, these rings we arrange upon the above tube at a certain distance from
each end, as circumstances require, and then secured by the means or mode above 5
described, Such rings now forming flanges for the spokes of the wheel.
Dated 27th Tanuo
1807
THOS.
KENDRICK,
New Eldon Chambers, 50 Cherry Street, Birmingham, Agent.
Improvements in or relating to the Means or Mode of Constructing
certain Metallic Tubular Parts of Cycles, but applicable to other
purposes where like Tubes are Employed.
We THOMAS SPENCER KENDRICK Mechanical Engineer and ALFRED LEONARD
KENDRICK Mechanical Draughtsman both of No. 52 Belgrave Road Edgbaston
Birmingham, do hereby declare the nature of our said invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:—
Our invention for improvements as above set forth consists substantially of the
connecting of sections of metallic tubes to their sockets lugs and fittings by the
cmployment of a metallic ring in such a manner as to dispense with the brazing or
soldering of the joints or junctions which destroys the tenacity or strength of the
tube at that part where strength is most required..
The joining of tubes to other parts according to our invention is chiefly applic-
able to the junctions forming the frames of cycles, motor cars and the connecting
of tubes of varying lengths to each other for various purposes.
By the employment of metallic rings to a section of tube for hubs for cycles
and the like the said rings form the flanges, thereon and in a more expeditious
manner and at a saving of labour and material.
And in order that our said invention may be the more readily understood we
have hereto appended a sheet of drawings, in which similar letters of reference
indicate corresponding parts.
Figure 1 is a view in elevation of a bottom bracket of a cycle partly in section,
shewing tubular sections connected thereto for forming the framing of a cycle and
constructed according to our invention.
Figure 2 is the metallic ring in two views as employed for the connecting of
sections of metallic tubing to Sockets lugs and fittings according to our invention.
Figure 3 is a view in section shewing a lug with a section of metallic tube
fitted interiorly with the ring arranged preparatory to the connection of parts.
Figure 4 is the same view as Figure 3 but shewing the ring operated upon and
the connection of parts effected.
וי
Figure 5 is a view as Figure 3 but shewing a section of. metallic tube fitted to
the exterior of the lug.
I "
Figure 6 is a view of two sections of tubing one arranged inside the other with
a metallic bearing ring in the interior and the ring arranged as in Figure 3 ready
for the connection of parts.
Figure is a view as Figure 6 but shewing the ring operated upon and the parts
connected as in Figure 4.
Figure 8 is a view of two sections of tubing arranged as Figure 6 with a ring
and pin passing through and the parts connected.

page_text: Figure 9 is a view in section of a piece of metallic tube with two metallic rings
arranged thereon preparatory to the connection and forming of flanges as a hub
for cycles and constructed according to our Invention.
Figure 10 is the same view as Figure 9 but shewing the rings operated upon and
connected therewith.
Figure 11 is a view in elevation of a hub in its entirety.
a is the bottom bracket of a cycle bed are lugs or sockets ef g are sections of
tube is the ring i the bearing ring is the pin.
By reference to Figure 1 and to the lug b of same and the tubular section e in b
and to the ring h which is here adjusted for operation.
By the employment of tools to the exterior surface of hand with suitable power
mechanical or otherwise we compress the said ring circumferentially which
reduces it in its size the effect of this being to force and form in the lug b and the
tube a groove or indention corresponding to the form of h and in which it is
imbedded the parts are now connected and inseparable from each other as shewn
at hef (sectional) and hd g (complete) as Figure 1 this mode is also shewn in
Figures 3, 4, 5 to a ball head lug 6 and in Figures 6, 7 to sections of tubing with
bearing ring i with groove k.
In Figure 8 as a modification we shew the application of the ring h for connect-
ing two sections of tubing e and f the ring his arranged in position as shewn
and a hole drilled through hef through which is passed the pin j and secured by
each end being closed over.
In Figures 9, 10, 11 e is a section of tube h h are the rings arranged thereon and
secured or connected to by the employment of tools and suitable power as described
of previous figures the rings hh thus secured forming flanges on hub for cycles.
We do not limit ourselves to form and configuration of parts as we may vary or
modify them without departing from the principle of our said invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
In Improvements in or relating to the means or mode of constructing certain
metallic tubular parts of cycles but applicable to other purposes where like tubes
are employed.
The construction of a metallic ring or rings and the arrangement or employment
of same substantially as and for the purposes herein before described in the fore-
going specification and illustrated on the accompanying sheet of drawings.
THOS. KENDRICK,
50 Cherry Street, Birmingham, Agent.
THOS. KENDRICK,
50 Cherry Street, Birmingham, Agent.