Improvements in Apparatus for Jointing together the Tubular Frames of Bicycles.
Year: 1898

page_text: Date of Application, 1st Feb., 1898
Complete Specification Left, 29th Sept., 1898-Accepted, 26th Nov., 1898
FEUVISIONAL SPECIFICATION.
Improvements in Apparatus for Jointing together the Tubular
Frames of Bicycles.
We, The METal Tube JointING COMPANY LIMITED, of 10, 11, and 12, Wal-
brook, London, E.C., do hereby declare the nature of this invention (as communi-
cated to us from abroad by Samuel Palmiter, of Jamestown, New York, U.S.A.)
to be as follows:-
-
The tubes and sockets constituting the frame of a bicycle are jointed together
in a known manner, by inserting the end of the tube into the socket, and ex-
panding it by a tube expander, such as is employed for fixing boiler tubes in the
tube plates.
The present invention relates to apparatus by which this jointing operation is
rendered easy and rapid, as will be described with reference to the accompanying
drawings.
Fig. 1 is a plan and Fig. 2 is a longitudinal section of the operating table;
Fig. 3 is a plan of the frame on which the bicycle frame is clamped, Fig. 4 is a
section on the line 4-4 of Fig. 3, Fig. 5 is an elevation of the single socket
clamp, Fig. 6 is an elevation of the double socket clump, Fig. 7 is a section on
the line 7-7 of Fig. 3, and Fig. 8 is an end view at the point 8 on Fig. 3.
On the table A are mounted two parallel expanding apparatus having
heads B B provided with long mandrels, and at an angle a third B', having a
shorter mandrel. In each case the mandrel is caused to revolve by a belt, from
overhead shafting, driving a pulley b; the mandrel is tubular and carries at its
end the expander C of ordinary construction having its rollers arranged around
the tapering end of a rod D, which extends through the mandrel, and hus, beyond
the mandrel head, a rack engaged by a pinion, on the axis of which is fixed a
cross handle d. By turning this handle, in the one direction, the rod D can be
advanced its tapered end pressing the rollers of the expander apart while they
revolve so that they expand the tube. Each of the mandrel heads B B and B
is fixed to the table A by a screw 6 on loosening which the head can be turned
partly round so as to alter the direction of the mandrel.
On the table A is placed the frame E which is general of T section as shewn
in Fig. 4, and which is provided with under cut slots to receive the heads of
bolts for fixing tube clamps F, which can be moved a little along the frame
to suit the length of the tubes T and secured in position by screwing down the
nuts on the bolts f. Each of the clamps F consists of two parts hinged together
and secured by a nut on an eye bolt, so as to clamp the tube between them.
Under each of the parts of the frame where the clamps F are mounted, and also
at the angle 8, there are castors e on which the frame E can freely run in any
direction.
Besides the tube clamps F there are single socket clamps G each consisting of
three parts bolted together and there is one double socket clamp H; and at the
angle 8 there is a socket K to receive the end of the pedal bearing. The tubes T

page_text: and sockets S being clamped in position on the frame E, the sockets where neces-
sary having back holes to admit the mandrels, the frame is run into position
to receive successively the expanders on the mandrels of B B, and for the short
tube the shortest mandrel of B', the tubes being thus fixed to the several sockets.
Dated this 1st day of hohmu 1000
Improvements in Apparatus for Jointing together the Tubular
Frames of Bicycles.
We, The METAL TUBE JOINTING COMPANY LIMITED, of 10, 11, and 12, Wal-
brook, London, E.C., do hereby declare the nature of this invention (as communi-
cated to us from abroad by Samuel Palmiter, of Jamestown, New York, U.S.A.,)
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
•
The tubes and sockets constituting the frame of a bicycle are jointed together
in a known manner, by inserting the end of the tube into the socket, and ex-
panding it by a tube expander, such as is employed for fixing boiler tubes in the
tube plates.
The present invention relates to apparatus by which this jointing operation is
rendered easy and rapid, as will be described with reference to the drawings
accompanying the Provisional Specification.
Fig. 1 is a plan and Fig. 2 is a longitudinal section of the operating table.
Fig. 3 is a plan of the frame on which the bicycle frame is clamped, Fig. 4 is a
section on the line of Fig. 3, Fig. 5 is an elevation of the single socket
clamp, Fig. 6 is an elevation of the double socket clump, Fig. 7 is a section on
the line 7-7 of Fig. 3, and Fig. 8 is an end view at the point 8 on Fig. 3.
On the table A are mounted two parallel expanding apparatus having
heads B B provided with long mandrels, and at an angle a third B', having a
shorter mandrel. In each case the mandrel b is caused to revolve by a belt, from
overhead shafting, driving a pulley b; the mandrel is tubular and carries at its
end the expander C of ordinary construction having its rollers arranged around
the tapering end of a rod D, which extends through the mandrel, and has, beyond
the mandrel head, a rack engaged by a pinion, on the axis of which is fixed a
cross handle d. By turning thus handle, in the one direction, the rod D can be
advanced, its tapered end pressing the rollers of the expander apart while they
revolve so that they expand the tube. When the mandrel b is long it is supported
by an outer tube Z. Each of the mandrel heads B B and B is
fixed to the table A by a screw on loosening which the head can be turned
partly round so as to alter the direction of the mandrel.
On the table A is placed the frame E which is generally of T section as shewn
in Fig. 4, and which is provided with under cut slots to receive the heads of
bolts for fixing tube clamps F, which can be moved a little along the frame
to suit the length of the tubes T and secured in position by screwing down the
nuts on the bolts f. Each of the clamps F consists of two parts hinged together
and secured by a nut on an eye bolt f, so as to clamp the tube between them.
Under each of the parts of the frame where the clamps F are mounted, and also
at the angle 8, there are castors e on which the frame E can freely run in any
direction.
Besides the tube clamps F there are single socket clamps G each consisting of

page_text: three parts bolted together and there is one double socket clamp H; and at the
angle 8 there is a socket K to receive the end of the pedal bearing. The tubes T
and sockets S being clamped in position on the frame E, the sockets where neces-
sary having back holes to admit the mandrels, the frame is run into position
to receive successively the expanders on the mandrels of B B, and for the short
tube the shortest mandrel of 13', the tubes being thus fixed to the several sockets.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what
we claim is:-
For jointing together the tubular frame of a bicycle, apparatus comprising a
table having adjustably mounted on it three heads with mandrels carrying tube
expanders and means of rotating the mandrels and advancing the expanding
rollers, comprising also a frame mounted on casters to run on the table and
having on it clamps for the tubes and sockets of the bicycle frame substantially,
as described.
Dated this 29th day of September 1898
ABEL & IMRAY,
Agents for the Applicants.