A New or Improved Tube Joint for Cycle, Auto-Car, and like Frames.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c. Act, 1883) as required by
the decision of the Comptroller General, of the 25th day of May 1898.
Date of Application, 11th Feb., 1897
Complete Specification Left 11th Nov. 1897 Accepted 29th Jan. 1898
A New or Improved Tube Joint for Cycle, Auto-Car, and like Frames.
We, CHARLES KENYON, of 126, Heaton Lane, Stockport, Lancashire, Watch
Maker, and JOHN POGSON, of 102, Old Road, Stockport, Lancashire, Furnishing
and General Dealer, do hereby declare the nature of our said invention to be as
follows:-
The object of our invention is to provide simple and efficient means for joining
the tubes or parts of a cycle frame to their sockets, without having recourse to
brazing or soldering.
In accordance with our invention we provide the end of the tube, or part, to be
connected with a set of raised ridges, or ribs, (formed by indenting the inner
face of the tube), and in the socket or bracket to which said tube (or part) is to
be connected we form an indent or rib corresponding in depth to one of the afore-
said ribs in the tube, and a slit or narrow opening corresponding to the other
indent in the said tube. The end or mouth of the socket is formed with two
lugs, one on either side of the slit, which at that point (where the lugs come) is
rather narrower than the other part, and which lugs we provide with a screw or
bolt or equivalent means for drawing them tightly together.
To connect the tube (or part) to the socket, we slacken the screw until the slit
between the lugs is sufficiently opened to permit of the rib on the tube to enter
between them. We then slide the tube into the socket until the rib is beyond
the two lugs, when we tighten up the screw again and draw the lugs together
until they almost or entirely meet, and come behind the said rib, when they
entirely prevent the withdrawal of the tube until the screw is slackened, and
the lugs separated.
In lieu of the embossed rib or ridge running parallel with the tube it may be
spiral, diagonal, or annular, but in such cases it will be formed after the tube is
placed in the socket, and the socket will be indented at the same time.
To strengthen the ends of the tubes we provide the same with a 'liner tube, or
bush at each end.
Dated this 10th dow of Fahru 1807
CHARLES KENYON,
JOHN POGSON,
By John G. Wilson & Co.,
Agents,

page_text: A New or Improved Tube Joint for Cycle, Auto-Car, and like Frames.
We, CHARLES KENYON, late of 126, Heaton Lane, and now of 123, Wellington
Road South Stockport, Watch Maker, and JOHN POGSON, of 102, Old Road,
Stockport, Furnishing and General Dealer, 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 object of our invention is to provide simple and efficient means for joining.
the tubes or parts of a cycle frame to their sockets, without having recourse to
brazing or soldering, and thereby to permit of the quick and easy putting
together, or building up, of the frame, or of taking the parts to pieces to facilitate
transit, or removal."
In accordance with our invention we provide the end of the tube or part to be
connected with a set of raised ridges or ribs (formed in the case of a tube by
indenting the inner face), and in the socket or bracket to which said tube or
part is to be connected we form a ridge or rib corresponding in depth or height
to one of the aforesaid ridges in the tube and a slit or narrow opening correspond-
ing to the width and length of the other indent in the said tube.
The end or mouth of the socket is formed with two lugs, ears or wings,-one
on either side of the slit, which at that point (where the lugs come) is rather
narrower than the other part, and said lugs are provided with a screw or bolt,
or equivalent means, for drawing them tightly together.
To connect the tube, or part, to the socket we slacken the screw until the slit
between the lugs is sufficiently opened to permit of the ridges on the tube to
enter the ridge and slit in the socket. We then slide the tube into the socket
until the ridge in the slit is beyond the two lugs, when we tighten up the screw
again, and draw the lugs together until they almost, or entirely meet and come
behind the said ridge, and thereby entirely prevent the withdrawal of the tube
until the screw is again slackened, whilst the ridges prevent the tube twisting.
In lieu of, or in addition to the longitudinal ridges, we may provide transverse
or diagonal depressions or indents applied or formed after the tube is put into
the socket, and supplemented with the lugs and slit to ensure of a perfect connec-
tion.
Although we have described the tube as being formed with two ridges, we may
form it with one only and the socket with a slit only and without a ridge, and
in practice we find such an arrangement sufficient.
To strengthen the ends of the tubes we provide the liner hereinafter described.
And in order that our said invention may be more readily understood and
carried into practical effect we have hereunto annexed a sheet of drawings, and
will now proceed to describe the same with the figures and letters of reference
marked thereon.
Fig. 1 illustrates in perspective one of the sockets of a cycle frame made in
accordance with the preferred form of our invention, i.e., with a slit only and
without a ridge, and Figs. 2 and 3 illustrate tube ends for connection therewith
with a single ridge. Fig. 4 illustrates the form of liner we employ for strengthen-
ing the ends of the tubes.
Figs. 5, 6, 7 and 8 illustrate the application of our invention to the principle
sockets or connections of what is known as the "diamond" frame of a safety
bicycle.
In accordance with our invention we form the sockets (A) more or less of the
usual shapes and proportions, and, by preference in malleable cast metal. Upon

page_text: the sides of each tubular part (B), and at right angles and in one piece therewith,
we cast a snug or projection, which we afterwards saw or cut into two parts to
produce lugs or wings (C). Also in said tubular parts (B) we form or cast a
slit or opening (D). In the tube end or part to be connected to the socket we
provide a projection (E), formed, in the case of the tube by bulging out the tube
from the interior, or, in the case of a solid part, by a special ridge, swaged,
moulded or otherwise fixed upon it, and in either case of a length and size slightly
less than the wider part of slit (D). The lugs (C) are drilled and screw-threaded
to receive a set screw (F), or left plain and provided with a bolt and nut, and
when in their normal condition said lugs close or almost close the entrance to
slit (D).
In joining a tube to the socket the ridge (E) is allowed to pass between the
lugs (C) by the latter being held apart by set screw (F) or a special tool, and when
the end of the tube reaches the end of the slit (D), such lugs are allowed to come
together again, and by means of the set screw (F) are then tightly drawn together,
thereby causing the tubular part (B) to grip the tube and by reason of the
ridge (E) being locked within slit (D) and unable to pass the lugs (C), preventing
the withdrawal of the tube.
When it is required to take the frame to pieces, say to lie in smaller compass
for packing and transit purposes, or say in case a tube is broken or damaged, it
is only necessary to ease the screws (F) of the several sockets belonging to the
parts to be divided and cause the lugs to separate, until the tube ends can be
withdrawn, and thus it will be seen that any particular tube can be readily re-
placed in case of breakage.
For all practical purposes one set of lugs (C), and one slit (D) in the socket
and one ridge (E) in the tube are sufficient but we may employ two or more sets
of lugs, and two or more slits, or a slit and ridge (or ridges) in the socket and
two (or more) ridges in the tube.
"
As applied to the " crown portion of the steering fork, we may adapt our
invention thereto by applying the slots and lugs to the several tubular parts,
and the ridges to the forks and steering post, and we may arrange them on the
front of the parts to facilitate access, or at the side or back to conceal them from
view. In a seat tube socket the lugs (C) are fitted below the ordinary clamping
device (see Fig. 6), and the slit between the ears (C) is made of a suitable length
to prevent interference with the clamping of the saddle support.
To prevent distortion or collapse of the ridge (E), we provide the tube end with
the liner or device shewn in Fig. 4, which fits tightly inside the tube, and one
of its webs or parts (G) is slightly wider than the others, and takes into the
ridge (E) in the tube (or its liner), so giving a solid support or backing to the
ridge which prevents its collapse or distortion by external pressure.
In addition to the lugs (C), we may arrange a sleeve or nut upon each tubular
part (1), with enlarged portion to admit ridge (E) to pass, and then by turning
round to still further lock the ridge in its slit, but we find that with the lugs
first cast in one piece and then cut in two, which causes them to lie in contact,
or almost in contact, with each other, and to require force to separate them, that
they and the screw are sufficient. Lastly, we may reverse the position of the
parts, ie, arrange the slit and lugs on the tube ends, and the indent or ridge (E)
on the socket.
Having thus particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we would have it
understood that we are aware of the Specification of Letters Patent, No. 24301
A.D. 1895 granted to James Richard Trigwell and we do not claim anything
described and claimed therein, but, what we claim and desire to secure by Letters
Patent is:
-
1-In means for securing the parts of a cycle or like frame together without
brazing, soldering, or for permitting the same to be taken to pieces for transit

page_text: or renewal, the use of sockets or parts, having lugs or wings capable of closing
the entrance of a slit (or slits) formed in said sockets or parts, in combination
with tubes or parts having an enlargement or external ridge (or ridges), as herein-
before set forth.
2: A tube end or similar part of a cycle or like frame, formed or provided
with one or more exterior ridges or projections, as and for the purposes set forth.
3: A tube for use in cycle or like frames with one or more raised exterior
ridges or projections, in combination with the liner, designed to take into and
support the ridge (or ridges), as set forth and shown in Figs. 2 and 4.
4: A socket for use in joining parts of a cycle or like frame, with one or
more transverse or diagonal depressions, or ridges and a slit with lugs, in combi-
nation with a tube with corresponding depressions, or ridges with liner to suit,
as set forth.
Dated this 10th day of Navamban 1907