Improvements in Detachable Joints for Cycle and other Vehicle Frames or like Tubular Structures.
Year: 1898

page_text: Improvements in Detachable Joints for Cycle and other Vehicle
Frames or like Tubular Structures.
I, JOHN GODDARD, of Queens Road, Beeston, in the County of Nottingham,
Cycle Manufacturer, do hereby declare the nature of this invention to be as
follows:
This invention relates to improvements in detachable joints for securing the
ends of metal or other tubular members of a vehicle frame or structure, into
the connecting lugs or bosses, so that the said tubular member or members may
be secured without brazing and be readily detached when required.
In carrying out this invention the end of a tubular member of a cycle frame
or other structure is placed in the connecting lug or boss and is then expanded
by means of an expanding sleeve or bush placed within the end of the tube."
This expanding sleeve or boss may be formed by bending a piece of sheet
metal into a cylindrical form, or by taking a piece of tube of the requisite dia-
meter and dividing or partially dividing it longitudinally, at preferably one
point in its circumference.
At any convenient point in the length of the sleeve and at the two opposite
sides of the free ends or the point of division, the wall of the sleeve at the two
points mentioned is stamped, pressed or forced inwards, so as to form in cross
section two opposite inclined surfaces with a wedge shaped space between them.
Fitting into the wedge shaped space between the two surfaces, is a wedge
shaped block, which may be drawn or forced towards the narrow end of the said
space and the whole of the sleeve thus expanded preferably by a radial screw
which passes through a hole in the side of the lug or boss, and through corre
sponding holes in the tube and sleeve, and is screwed into the wedgesbaped
block referred to.
By means of this screw which is inserted after the tube is placed in position,
the sleeve is expanded in the manner described, after the tube is placed in
position, and it is thus firmly secured.
The sleeve is preferably formed with its two free ends, or the point of division
at the same point as the hole for the screw, and the tube is preferably divided
or split for a suitable distance from its end at the same point, in order that it
will readily expand.

page_text: If preferred the sleeve may be placed in the end of the tubular member before
the parts are stamped or forced in to form the oppositely inclined surfaces, and
the wall of the tube be stamped into the recesses formed in the exterior of the
sleeve, and the two thus firmly secured together by this operation.
The expanding sleeves instead of being formed from sheet metal or tubing in
the manner described may be stamped from the solid, cast, or otherwise pro-
duced, but I prefer the former method by means of which they may be produced
of the greatest strength, of least weight and most economically.
Dated this 5th day of January 1898
BOULT & WADE,
Agents for the Applicant.
(AMLINDED).
Improvements in Detachable Joints for Cycle and other Vehicle
Frames or like Tubular Structures.
I, JOHN GODDARD, of Queens Road, Beeston, in the County of Nottingham,
Cycle 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 improvements in detachable joints for securing the
ends of metal or other tubular members of a vehicle frame or structure, into
the connecting lugs or bosses, so that the said tubular member or members may
be secured without brazing and be readily detached or removed when required.
The invention will be best understood by reference to the accompanying
drawings, in which
Fig. 1 is a longitudinal sectional elevation, and
Fig. 2 an end view of a joint constructed according to my invention.
Fig. 3 is a side elevation, and
Fig. 4 an end view of the expanding sleeve or liner.
Fig. 5 is a sectional view of the end of a tubular member of a cycle or like
framing.
Fig. 6 is a sectional elevation, and
Fig. 7 an end view showing a modification.
Like letters indicate like parts throughout the drawings.
According to this invention the end of a tubular member A (see Figs. 1 and 2)
of a cycle frame or like structure, is placed in the connecting lug or boss B, and
is then expanded by means of an expanding sleeve or liner C of special con-
struction, which is placed within the end of the tube A.
The expanding sleeve or liner C which is shown by itself in Figs. 2 and 3, is
formed with a longitudinal slit or opening 1 extending either the whole or part
of its length, and two internal transverse ribs E which are placed opposite to each
other, and are oppositely inclined, so as to form a wedge shaped space between
them.
The expanding sleeve or liner C may be formed by bending a piece of sheet
metal into a cylindrical form, or by taking a piece of tubing of the requisite
diameter and length, and dividing or partially dividing it longitudinally at D.
The internal ribs E are then formed by stamping the wall of the sleeve or
liner inward at the requisite points as shown.
The expanding sleeve or liner C may however be stamped from the solid, cast,

page_text: or otherwise produced, but I prefer the former method by means of which they
may be produced of the greatest strength, of least weight, and most economically.
Fitting in the wedge shaped space between the internal ribs E of the sleeve or
liner is a block F', this block F is moved transversely from the wider end
towards the narrow end of the said space, and the sleeve or liner thus expanded,
preferably by means of a screw G, which is passed through corresponding holes
in the lug B, tube A, and sleeve or liner C, and is screwed into the block F.
The sleeve or liner C is preferably formed with the opening D at the same
point as the hole for the screw G, and the end of the tube A is preferably divided
or split at the same point, in order that it may be readily expanded.
If preferred the sleeve or liner C may be placed in the end of the tube A before
the ribs E are formed on the former, and the said ribs be formed by stamping
in both the wall of the tube A and sleeve or liner C, and the two thus firmly
secured together by this operation.
Or instead of using a sleeve or liner, I may form internal ribs E in the end of
the tubular member of the framing itself, as shown in Fig. 5, and expand the end
of said tube by a block F in the same manner as the sleeve or liner C.
With this arrangement I preferably employ what are known as butted tubes,
that is tubes with thickened walls at their ends.
In the modification shown in Figs. 6 and 7 the internal inclined ribs E in the
sleeve or liner C are placed longitudinally, that is parallel to the axis of the liner.
In this case the block F is moved longitudinally by means of an axial screw
or bolt H, which may extend from the block F of the joint at one end of the
tube, to that of the joint at the other. Or the block of each joint may be
actuated by an independent screw, the head of which may take a bearing on a
washer or the like placed on the end of the tube or liner, or both; in the latter
case the inclination of the ribs E would be the reverse of that shown in
Figs. 6 and 7.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I would have it
understood that I am aware of the specifications of Henry Belcher, Frederick
Easom and Frederick Westwood Nos. 24564, 25025 and 29715, A.D. 1896, and of
the specification of Christopher Harcourt Shacklock No. 28,050 A.D. 1897 and
that I do not claim anything described or claimed therein, but I declare that what
I claim is;-
-
1. In a detachable joint for cycles and other vehicle frames or tubular
structures the employment of an expanding sleeve or liner provided with internal
transverse or longitudinal ribs such as E which are inclined towards each other
for expanding the end of the frame tube A in the lug B substantially as described.
2. In a detachable joint for cycle and other vehicle frames or tubular
structures the employment of an expanding sleeve or liner provided with internal
transverse or longitudinal ribs such as E stamped or formed out of the wall of
the sleeve substantially as and for the purpose described.
3. In a detachable joint for cycle and other vehicle frames or tubular
structures forming the end of a frame tube A with internal transverse ribs such
as E inclined towards each other substantially as and for the purpose described.
4. In a detachable joint for cycle and other vehicle frames or tubular
structures forming the end of a frame tube A with internal transverse ribs such
as E by stamping said ribs out of the wall of the tube substantially as and for the
purpose described.
5. In a detachable joint for cycle and other vehicle frames or tubular
structures the combination with a lug B of a frame tube A an expanding sleeve
or liner such as C provided with internal transverse or longitudinal ribs such
as E a block such as F between the ribs E and a screw for moving the block F
substantially as described.
6. In a detachable joint for cycle and other vehicle frames or tubular

page_text: structures the combination, with a lug B of a frame tube A transverse ribs such
as E within the end of the frame tube a block such as I between the ribs E and
a screw for moving the block F substantially as described.
7. The combination and arrangement of parts constituting the complete detach-
able joint for cycle or other vehicle frames or tubular structures substantially as
described and illustrated in Figs. 1 and 2 or Fig. 6 of the accompanying drawings.
1 44 1080
JOHN
GODDARD,
Boult & Wade,
Agents for the Applicant.