mprovements in the Junctions of Cycle, Motor Car, and other Frames, applicable also to analogous purposes.
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 13th day of July 1898.
mprovements in the Junctions of Cycle, Motor Car, and other Frames,
applicable also to analogous purposes.
We, JOSEPH HOWARD KIRK, of Jessamine Villa, Orchard Road, Erdington,
Manager, and JoHN WILLIAM JEFFS, of 56, Cyril Road, Small Heath, Manager,
and both in the County of Warwick, do hereby declare the nature of our said inven-
tion to be as follows:-
Our invention has for its object improvements in the junctions of cycle, motor
car and other frames applicable also to analogous purposes such for instance as
hand rails bridges &c. which enables us to make junctions without the use of
brazing or soldering which necessitates a certain amount of heat being applied
to the parts to be united which renders such parts being liable to overheating
which is found to injure such junctions.
According to our invention we proceed as follows:-We bore the lug or socket
and turn the end of the tube or spigot when necessary so as to be a fairly
accurate fit. We then bore a hole through the side of the socket and through
the tube so as to allow a screw pin to pass through one or both sides of the
socket and tube, in any desired part of the circumference of the socket: Then
inside the end of the tube we place a split drum or drum made in two halves
by stamping, pressing, casting or the like. Through the split part of the drum
or between its two parts we form a hole to receive the cross screw pin. This hole
is coned at each end towards the middle and in which we place two steel cones,
one from each end of the hole. One of the cones--the furthest from the head
of the pin is tapped with a screw thread, and the end of the screw carries a corre-
sponding thread at its point and a shoulder at the back of the head. When
the split drum or semi blocks are placed in the tube with the two cones and the
whole placed home in the socket or lug the cross pin is entered and screwed up
by a suitable spanner or tool in such a manner that the point of the screw draws
the screw cone inwards and the shoulder of the screw drives the other cone
inwards also which has the effect of opening out the split drum or semi block so
that they are strongly forced against the inner portion of the tube expanding it
and tightening it in the socket or lug thus making the junction without brazing.
The screw hole or holes of the junction may then be filled up or loose removable
caps put over the screws. It will be obvious that both cones may be plain and a
nut used at the end of the screw, or one cone may be formed under the head of
The
the screw and the opposite cone be formed on the nut with similar effect.

page_text: drums or semi-blocks may be made from any metal and either stamped, pressed
or cast.
Dated this 8th day of October 1807
Improvements in the Junctions of Cycle, Motor Car, and other Frames,
applicable also to analogous purposes.
We, JosEr HOWARD KIRK, of Jessamine Villa, Orchard Road, Erdington,
Manager, and JOHN WILLIAM JEFFS, of 56, Cyril Road, Small Heath, Manager,
and both in the County of Warwick, do hereby declare the nature of our said inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
-
Our invention has for its object improvements in the junctions of cycle motor
car and other frames applicable also to analogous purposes such for instance as
hand rails bridges etc., which enables us to make junctions without the use of
brazing or soldering which necessitates a certain amount of heat being applied
to the parts to be united which renders such parts being liable to overheating
which is found to injure such junctions.
Then
This
According to our invention we proceed as follows:-We bore the lug or socket
and turn the end of the tube or spigot when necessary so as to be a fairly
accurate fit. We then bore a hole through the side of the socket and through
the tube so as to allow a screw pin to pass through one or both sides of the
socket and tube in any desired part of the circumference of the socket.
inside the end of the tube we place a split drum or drum made in two halves
by stamping pressing casting or the like. Through the split part of the drum
or between its two parts we form a hole to receive the cross screw pin. This hole
is coned at each end towards the middle and in which we place a steel cone.
cone is drilled and tapped with a screw thread, and the end of the screw pin
carries a corresponding thread at its point and is cone shaped at the back of the
head. When the split drum or semi blocks are placed in the tube with the cone
and the whole placed home in the socket or lug the cross pin is entered and
screwed up by a suitable spanner or tool in such a manner that the point of the
screw draws the cone inwards the coned end of the screw pin being forced in also
which has the effect of opening out the semi-blocks so that they are strongly
forced against the inner portion of the tube expanding it and tightening it in the
socket or lug thus making the junction without brazing. The screw hole or holes
of the junction may then be filled up or loose removable caps put over the screws.
It will be obvious that the cone may be plain and a nut used at the end of the
screw or another cone may be used under instead of the coned end of the screw
and the opposite cone be formed on the nut with similar effect. The drums or
semi-blocks may be made from any metal and either stamped, pressed or cast.
In order that our invention may be more clearly understood and easily carried
into practical effect we have appended hereunto a sheet of drawings upon which
we have illustrated sufficient examples of our improved joint to show its applica-
tion.
Figure 1 is an elevation shewing the tube T connected to the socket S according
to our invention.
Figure 2 is an underside view of Figure l

page_text: removed.
Figure 5 in an end view of Figure 1.
Figure 6 is a view of the drums or blocks with the pin inserted.
Figure 7 shews the pin and cone detached.
Figures 8 is an elevation of a modified form of the screwed pin.
Figure 9 is a view of the screwed pin with a modified expanding wedge.
Figure 10 is an end view of Figure 9.
Figure 11 is a part sectional plan view of a lug shewing the drums or blocks
expanded endwise.
In carrying our invention into practice we bore the lug or socket S and turn the
end of the tube T or spigot when necessary so as to be a fairly accurate fit. We
then bore a hole through the other side of the socket and through the tube so as
to allow the screw pin A to pass through. We then place inside the end of the
tube a drum formed by stamping pressing casting turning or the like in two
halves B and B and the centre portion may be formed hollow for lightness if
necessary. Between these two parts B and B we form a hole to receive the cross
screw pin A and this hole is coned at each end towards the centre and in the
coned end 2 furthest from the head of the pin we place the cone I) having a
tapped hole in the centre in which the end of the screw pin fits. This screw pin
is formed cone shaped near the opposite end as shewn on the drawings, and this
cone shaped portion fits the coned end 3 of the parts B and B as clearly shewn
at Figure 4. The end a¹ of the screwed pin may be formed square or hexagonal
so as to be suitable for the reception of a spanner or wrench. When the semi
blocks are placed in the tube with the cone and the whole placed in position in
the socket or lug so as to bring the holes in the tube and socket exactly over each
other the pin A is inserted and screwed up by a spanner or tool the point of the
screw which fits into the cone D will draw this cone inwards and the cone shaped
end of the pin will be forced inwards also by which means the two halves or semi
blocks are opened out or strongly forced against the inner surface of the tube thus
expanding it or tightening it in the socket or lug thereby forming the junction
without brazing. It obvious that the hole in the cone may be plain and
a nut used at the end of the screw pin a loose cone 1)¹ may also be used in place
of the coned end of the pin as shewn at Figure 12. Instead of forming the square
or hexagon a¹ on the end of the screwed pin we may form a square or hexagon
recess a² in this end of the pin as shewn at Figure 8 so as to bring the pin flush
with the surface of the socket or lug and in this case we may use a spring cap or
cover for covering up the end of the pin. For the purpose of holding the parts
together whilst they are placed in the end of the tube we may fit the elastic
bands 65 around the semi cones as shewn at Figure 3 or they may be held
together by soft solder or other means.
In some cases instead of using the cone D for expanding the semi blocks B
and B we may use the wedge W which is provided with a tapped hole in the
centre for the screwed end of the pin A to fit into as shewn at Figures 9 and 10.
A corresponding hole or recess is formed in the blocks for the wedge to fit into.
In the modification as shewn at Figure 11 we have formed the hole in the semi
blocks B and B in which the screw pin A fits longitudinally instead of cross-
wise, so that when the semi blocks and the cone or cones or wedge have been
placed in position in the end of the tube, and the whole inserted into the socket
the pin A is inserted between the semi blocks through the opening 7 of the lug
and then screwed up by a suitable spanner or tool the junction being made in
the manner as hereinbefore described.
It will be evident that the semi blocks B and B¹ may be of any form or
section, such for instance as oval, D shape, square or octagon, so as to enable the
junctions to be made with tubing of a like shape or section.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed we wish it to be understood
that we are aware of the Specification of Henry Belcher, Frederick Easom and
Frederick Westwood No. 24564 of 1896, and we make no clain to anything described
and claimed therein, but we declare that what we claim is:-
CLAIMS.
First The improvements in the junctions of cycle, motor car and other
frames applicable also to analogous purposes consisting essentially of the semi
blocks or pieces such as B and B having a hole either lengthwise or cross wise
coned or wedge shaped at each end towards its centre for the reception of a
screwed cone or wedge pin such as A and a cone such as D or wedge such as W
into which the pin screws and which pin after the part have been placed in the
end of the tube and the whole inserted in the socket passes through a hole formed
in the tube in the manner and for the purpose substantially as hereinbefore
described and as shewn upon the accompanying drawings.
Second In a tubular joint the employment of semi blocks such as B and B
having a hole either lengthwise or crosswise coned or wedge shaped at each end
towards its centre which semi blocks are opened out or expanded by a double
cone screw substantially as hereinbefore described and as shewn upon the
drawings.
Dated this 19th day of December 1897
GEORGE BARKER,
Agent for Applicants, 77, Colmore Row, Birmingham.