Year: 1888

page_text: CHARLES THOMAS CROWDEN Engineer of 56 Ennersdale Road Lewisham, and
ARTHUR BROWN Engineer of 52 Brightfield Road Lee, both in the County of Kent,
do hereby declare the nature of this invention to be as follows:-
In the present construction of framework with metallic tubes having sockets, teos,
is usual to unite these
or angle pieces for connections, such as Cycle Framework,
connections to the tubes by brazing or soldering to ensure a solid joint.
In making a joint according to the invention with a socket, tee, or angle pieces
having a male end inserted in the end of the tube, one or more grooves preferably
U shaped are formed; and a special tool having three or more rollers clasped round.
the outside of the tube is made to revolve, at the same time the rollers pressing the
tube into the recesses formed in the male end socket, tee, or angle pieces by means'
of a screw or lever.
.
In the case of a female socket with the tube inserted, the tube is expanded
from the inside by a similar tool into recesses formed in the socket;, tee,. or
angle pieces.
In this manner the tubes are securely fastened to the sockets without being
fired, each portion being finished before it is put together so the tubes and
sockets are not deteriorated as in case of brazing or soldering by overlieating
when. fired.
1
CA
11000

page_text: Improved Jointing for Tubular Framework.
CHARLES THOMAS CROWDEN 12 Ennersdale Road Lewisham county of Kent and
ARTHUR BROWN 51 White Road Sparkbrook Birmingham county of Warwick
Engineers 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 :-
In the present construction of Framework with metallic tubes having sockets, tees'
or Angle pieces for connections such as Cycle framework it is usual to unite these
connections to the tubes by brazing or soldering to ensure a solid joint.
In making a joint according to this invention, with a socket, tee or angle piece,
having a male end inserted in the end of the tube; one or more grooves preferably
U shaped are formed; and a special tool having three or more rollers clasps the
the outside of the tube and is made to revolve; at the same time the rollers are
constrained to press the tube into the recesses formed in the male end of the socket,
tee or angle piece by means of a screw or lever.
In the case of a female socket with the tube inserted, the tube is expanded from the
inside by a similar tool into recesses formed in the socket, tee, or angle piece. In this
manner the tubes are securely fastened to the sockets without being fired, each portion
being finished before it is put together; thus the tubes and sockets are not deteriorated
as in the case of brazing or soldering by overheating when fired.
Fig. 1. shews a tee piece 1 with a male end, which has formed on its outside, one,
or more grooves 2 and 21 which may be of any suitable form; the tube 3 is forced
into the grooves by a special tool shown in Fig. 5 and hereafter described.
Fig. 2. shews a tee piece 1 with a female joint which has formed inside of it one
or more grooves 2 and 21 of any suitable form; the tube 3, having passed through,
is expanded into the grooves by a special tool shewn in Fig. 4 and hereafter
described.
Fig. 3. shews a female socket 1 and has grooves 2 and 2¹ formed on the outside of.
the socket, which may be of any form or number the socket 1. is rolled or forced into
the tube by the tool shewn in Fig. 5 and hereafter described.
Fig. 4. shews a section of a tool for making joints from the inside of a tube as
shewn in Fig. 2, having a hollow mandrel 1, with recesses for carrying balls or
rollers 2 and 2¹ which are expanded by the taper mandrel 3.
The tool can be made
to revolve inside the tube or the tube to revolve outside the tool. We preferably use.
'rollers with two or more beads such as shewn in Fig. 10.
Fig. 5. shews a side view partly in section and, Fig. S a sectional plan of a tool for
making joints on the outside of a tube or tubular projection of a joint piece as, shewn,
such as Figs. 1 and 3; having a bracket 1 carrying two beaded rollers 2 and 2¹ also
provided with a die 3 carrying a beaded roller 4 which forces or rolls the outside of
the tube into the recesses formed in the socket, by the feed screw 5 or, in case of the
joint Fig. 3 the socket is forced or rolled into the tube. The tool can be made to
revolve outside the tube or the tube inside the tool.

page_text: Figs. 6 and 7 shew two sections of joints made between two pieces of tube rolled or
forced together from the inside and outside, respectively; by the tools described and
shown in Fig. 4 and in Figs. 5 and 8. We wish it to be distinctly understood that
we do not bind ourselves to the particular form of recesses shown in the drawings or
to the particular form of tools as described and shewn, as they should be modified to
suit the individual work to be done ; nor do we bind ourselves to circular tubular
joints, as oval or other sections of joint can be made by substantially the same process
and tools.
+
Fig. 9. shews a modification of the tool for rolling external grooves, which may
be employed where it is desirable (as in the case where the joint may be subject to
torsional strains) to form longitudinal instead of annular grooves. 1 represents the
metallic piece to be grooved; 2 a movable arm furnished with a handle at one end,
and with the grooving roller 3 in the middle; the other end is hinged to a block 4
which slides in the frame 5 and is provided with a rod 6. By means of a spring 7
encircling this rod the roller 3 is constrained to press the metal piece against a part
of the frame 5 which is recessed to receive it. It will be seen that by imparting an.
oscillating motion to the arm 2 and putting sufficient compression on spring 7
by means of a regulating screw 8, a longitudinal groove will be rolled into the
metal piece.
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;
1. Joining a metal piece of cylindrical form with a tube or tubular piece of slightly
larger bore by rolling out grooves, preferably of annular form on the circumference
of the former piece, then inserting the same into the tube or tubular piece and rolling
corresponding grooves on the latter as described.
2. Joining two tubular pieces of metal of slightly varying diameter by roiling out
one or more internal grooves inside the larger one, then inserting the lesser one into
the former and rolling out internal grooves corresponding to and fitting into those in
the outer piece.
3. A Tool, such as is illustrated in Fig. 4 capable of rolling internal grooves
without abrasion or cutting away of the metal in the manner and for the purpose
set forth.
4. A Tool such as is illustrated in Figs. 5 and 8 capable of rolling external grooves
without abrasion or cutting away of the metal in the manner and for the purpose
set forth.
5. A Tool, of the nature illustrated in Fig. 4 and in Figs. 5 and 8 furnished with
rollers having two or more beads capable of rolling two or more grooves simultaneously
for the purpose set forth.
6. A Tool capable of rolling longitudinal grooves in the manner and for the purpose
set forth.
7. Joining a metal tube with a cylindrical piece or joining two tubular pieces by
first rolling grooves on one of the pieces, then placing one piece over the other and
then rolling grooves into the second piece corresponding to and fitting into the
first piece with tools such as are described, and in the manner substantially as
set forth.
Dated this 12th day of January 1889
CHARLES THOMAS CROWDEN.
ARTHUR BROWN.

page_text: Date of Application, 13th Apr., 1888
Complete Specification Left, 14th Jan., 1889
Complete Specification Accepted, 2nd Mar., 1889
CHARLES THOMAS CROWDEN Engineer of 56 Ennersdale Road Lewisham, and
ARTHUR BROWN Engineer of 52 Brightfield Road Lee, both in the County of Kent,
do hereby declare the nature of this invention to be as follows:-
In the present construction of framework with metallic tubes having sockets, tees,
or angle pieces for connections, such as Cycle Framework, it is usual to unite these
connections to the tubes by brazing or soldering to ensure a solid joint.
In making a joint according to the invention with a socket, tee, or angle pieces
having a male end inserted in the end of the tube, one or more grooves preferably
U shaped are formed; and a special tool having three or more rollers clasped round.
the outside of the tube is made to revolve, at the same time the rollers pressing the
tube into the recesses formed in the male end socket, tee, or angle pieces by means
of a screw or lever.
In the case of a female socket with the tube inserted, the tube is expanded
from the inside by a similar tool into recesses. formed in the socket, tee, or
angle pieces.
In this manner the tubes are securely fastened to the sockets without being
fired, each portion being finished before it is put together so the tubes and
sockets are not deteriorated as in case of brazing or soldering by overheating
when fired.
Dated this 13th day of April 1888.
CHARLES THOMAS CROWDEN.
ARTHUR BROWN.

page_text: COMPLETE SPECIFICATION.
Improved Jointing for Tubular Framework.
CHARLES THOMAS CROWDEN 12 Ennersdale Road Lewisham county of Kent and
ARTHUR BROWN 51 White Road Sparkbrook Birmingham county of Warwick
Engineers 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 :-
In the present construction of Framework with metallic tubes having sockets, tees'
or Angle pieces for connections such as Cycle framework it is usual to unite these
connections to the tubes by brazing or soldering to ensure a solid joint.
In making a joint according to this invention, with a socket, tee or angle piece,
having a male end inserted in the end of the tube; one or more grooves preferably
U shaped are formed; and a special tool having three or more rollers clasps the
the outside of the tube and is made to revolve; at the same time the rollers are
constrained to press the tube into the recesses formed in the male end of the socket,
tee or angle piece by means of a screw or lever.
In the case of a female socket with the tube inserted, the tube is expanded from the
inside by a similar tool into recesses formed in the socket, tee, or angle piece. In this
manner the tubes are securely fastened to the sockets without being fired, each portion
being finished before it is put together; thus the tubes and sockets are not deteriorated
as in the case of brazing or soldering by overheating when fired.
Fig. 1. shews a tee piece 1 with a male end, which has formed on its outside, one,
or more grooves 2 and 2 which may be of any suitable forin; the tube 3 is forced
into the grooves by a special tool shown in Fig. 5 and hereafter described.
Fig. 2. shews a tee piece with a female joint which has formed inside of it one
or more grooves 2 and 21 of any suitable form; the tube 3, having passed through,
is expanded into the grooves by a special tool shewn in Fig. 4 and hereafter
described.
Fig. 3. shews a female socket 1 and has grooves 2 and 21 formed on the outside of
the socket, which may be of any form or number the socket 1 is rolled or forced into
the tube by the tool shewn in Fig. 5 and hereafter described.
Fig. 4. shews a section of a tool for making joints from the inside of a tube as
shewn in Fig. 2, having a hollow mandrel 1, with recesses for carrying balls or
rollers 2 and 21 which are expanded by the taper mandrel 3. The tool can be made
We preferably use
to revolve inside the tube or the tube to revolve outside the tool.
rollers with two or more beads such as shewn in Fig. 10.
Fig. 5. shews a side view partly in section and, Fig. 8 a sectional plan of a tool for
making joints on the outside of a tube or tubular projection of a joint piece as, shewn,
such as Figs. 1 and 3; having a bracket 1 carrying two beaded rollers 2 and 21 also
provided with a die 3 carrying a beaded roller 4 which forces or rolls the outside of
the tube into the recesses formed in the socket, by the feed screw 5 or, in case of the
joint Fig. 3 the socket is forced or rolled into the tube. The tool can be made to
revolve outside the tube or the tube inside the tool.

page_text: Figs. 6 and 7 shew two sections of joints made between two pieces of tube rolled or
forced together from the inside and outside, respectively; by the tools described and
shown in Fig. 4 and in Figs. 5 and 8. We wish it to be distinctly understood that
we do not bind ourselves to the particular form of recesses shown in the drawings or
to the particular form of tools as described and shewn, as they should be modified to
suit the individual work to be done; nor do we bind ourselves to circular tubular
joints, as oval or other sections of joint can be made by substantially the same process
and tools.
Fig. 9. shews a modification of the tool for rolling external grooves, which may
be employed where it is desirable (as in the case where the joint may be subject to
torsional strains) to form longitudinal instead of annular grooves. 1 represents the
metallic piece to he grooved; 2 a movable arm furnished with a handle at one end,
and with the grooving roller 3 in the middle; the other end is hinged to a block 4
which slides in the frame 5 and is provided with a rod 6. By means of a spring 7
encircling this rod the roller 3 is constrained to press the metal piece against a part.
of the frame 5 which is recessed to receive it. It will be seen that by imparting an
oscillating motion to the arm 2 and putting sufficient compression on spring 7
by means of a regulating screw 8, a longitudinal groove will be rolled into the
metal piece.
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;
1. Joining a metal piece of cylindrical form with a tube or tubular piece of slightly
larger bore by rolling out grooves, preferably of annular form on the circumference
of the former piece, then inserting the same into the tube or tubular piece and rolling
corresponding grooves on the latter as described.
2. Joining two tubular pieces of metal of slightly varying diameter by rolling out
one or more internal grooves inside the larger one, then inserting the lesser one into
the former and rolling out internal grooves corresponding to and fitting into those in
the outer piece.
3. A Tool, such as is illustrated in Fig. 4 capable of rolling internal grooves
withont abrasion or cutting away of the metal in the manner and for the purpose
set forth.
4. A Tool such as is illustrated in Figs. 5 and 8 capable of rolling external grooves
without abrasion or cutting away of the metal in the manner and for the purpose
set forth.
5. A Tool, of the nature illustrated in Fig. 4 and in Figs. 5 and 8 furnished with
rollers having two or more beads capable of rolling two or more grooves simultaneously
for the purpose set forth.
6. A Tool capable of rolling longitudinal grooves in the manner and for the purpose
set forth.
7. Joining a metal tube with a cylindrical piece or joining two tubular pieces by
first rolling grooves on one of the pieces, then placing one piece over the other and
then rolling grooves into the second piece corresponding to and fitting into the
first piece with tools such as are described, and in the manner substantially as
set forth.
Dated this 19th day of January 1980
CHARLES THOMAS CROWDEN.
ARTHUR BROWN.