Improvements in Brazeless Joints for the Tubular Junctions of the Frames and other Parts of Velocipedes and Motor and other Carriages.
Year: 1898

page_text: Date of Application, 2nd Feb., 1898
Complete Specification Leit, 20th Sept., 1898-Accepted, 12th Nov., 1898
PROVIDIUNAL SPECIFICATION.
Improvements in Brazeless Joints for the Tubular Junctions of the
Frames and other Parts of Velocipedes and Motor and other
Carriages.
We, JOHN VERNON PUGH, of Cumnor Cottage, Leek Wootton, near Kenilworth,
in the County of Warwick, Mechanical Engineer, and HEBER ISAAC PEDLEY, of
No. 17, Dora Road, Birmingham, in the County of Warwick, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
Our invention consists of the construction and arrangement or combination
hereinafter described of the parts of brazeless joints for the tubular junctions of
the frames and other parts of velocipedes and motor and other carriages whereby
the parts of the frames or the like can be readily put and secured together and
when necessary or desirable for repair or for transit or storage may be as readily
detached or separated.
In constructing a detachable brazeless joint according to one arrangement of
our invention we make a slot in one side of the end of the tube to be inserted
in the lug the said slot having a width suitable to permit it to pass on to or
engage with the stem of the screw pin hereinafter referred to. We arrange in
the end of the said tube an open ring hereinafter called the expander the opposed
edge of which are slightly bevelled and terminate at or about the edge of the
slot in the tube. The lug or junction piece into which the end of the tube is to
be passed and in which it is to be detachably fixed has a hole at one side occupied
by a screw pin, the head of the screw pin being within the lug and a washer
and screw nut on the end of the screw pin being external to the lug. The head
of the screw pin has its two opposite parallel sides bevelled. The screw nut on
the screw pin being partially unscrewed the slotted end of the tube is passed
into the lug the slot engaging with the screw pin and the opposed
bevelled edges of the expander sliding under the bevelled edges
of the head of the screw pin. On the screwing home of the screw nut the bevelled
edges of the head of the screw pin bearing on the bevelled edges of the expander
cause a slight enlargement in diameter of the expander within the slotted end
of the tube. The expansion of the slotted end of the tube within the lug and
its consequent firm attachment thereto is thereby effected with without brazing.
According to another arrangement of our invention the bevelled edges of the
expander and head of the screw pin may be dispensed with. In this case
edges of the expander are turned slightly inwards and receive the head of the
screw pin which on being drawn outwards by the screwing up of the screw nut
causes the flattening of the turned in edges of the expander and the consequent
increase in diameter of the expander and the binding of the tube thereby in the
lug.
Or the expander, or the tube itself in which case the expander is dispensed
C

page_text: with, may have in place of the slot described an inwardly, projecting corrugation
at one side and a hole in the said corrugation for the screw pin to pass through.
By the drawing outwards of the screw pin its head tends to flatten the corrugation
and thereby increase the size of the tube within the lug.
Although we have only described our invention with reference to a joint in
which the tube is passed into the lug we wish it to be understood that it is equally
applicable to a joint in. which the tube takes on the exterior of the lug the lug
in this case having a slot with bevelled edges to permit of the expansion of the
lug within the unslotted tube.
Dated this Second day of February 1898
W. T. WHITEMAN,
Agent for the Applicants.
Improvements in Brazeless Joints for the Tubular Junctions of the
Frames and other Parts of Velocipedes and Motor and other
Carriages.
We, JOHN VERNON PUGII, of Cumnor Cottage, Leek Wootton, near Kenilworth,
in the County of Warwick, Mechanical Engineer, and HEBER ISAAC PEDLEY, of
No. 17, Dora Road, Birmingham, in the County of Warwick, Mechanical
Engineer, do hereby declare the nature of our invention and in what manner
the same is to be performed to be particularly described "and ascertained in and
by the following statement;-
Our invention consists of the construction and arrangement or combination
hereinafter described of the paris of brazeless joints for the tubular junctions of
the frames and other parts of velocipedes and motor and other carriages whereby
the parts of the frames or the like can be readily put and secured together and
when necessary or desirable for repair or for transit or storage may be as readily
detached or separated.
In constructing a detachable brazeless joint according to one arrangement of
our invention we make a slot in one side of the end of the tube to be inserted
in the lug the said slot having a width suitable to permit it to pass on to or
engage with the stem of the screw pin hereinafter referred to. We arrange in
the end of the said tube an open ring hereinafter called the expander the opposed
edges of which are slightly bevelled and terminate- at or about the edge of the
slot in the tube. The lug or junction piece into which the end of the tube is to
be passed and in which it is to be detachably fixed has a hole at one side occupied
by a screw pin, the head of the screw pin being within the lug and a washer
and screw nut on the end of the screw pin being external to the lug. The head
of the screw pin has its two opposite parallel sides bevelled. The screw nut on
the screw pin being partially unscrewed the slotied end of the tube is passed
into the lug the slot engaging with the screw pin and the opposed
bevelled edges of the expander sliding under the bevelled edges
of the head of the screw pin. On the screwing home of the screw nut the bevelled
edges of the head of the screw pin bearing on the bevelled edges of the expander
cause a slight enlargement in diameter of the expander within the slotted end
of the tube. The expansion of the slotted end of the tube within the lug and
its consequent firm attachment thereto is thereby effected without brazing.
This arrangement of our invention is illustrated in Figures 1, 2, 3 and 4 of the
accompanying drawing.
Figure 1 is a vertical section of the top lug of a safety bicycle frame and a

page_text: "
portion of the top horizontal tube of the said frame; Figure 2 is a plan of the
same and Figure 3 a cross section.
Figure 4 is a cross section of a similar arrangement but with some of the parts
slightly modified as hereinafter particularly described.
The same letters of reference indicate the same parts throughout.
a is the horizontal socket of the top lug into which the end of the top horizontal
tube 6 is inserted; c is the open ring or expander by the enlargement of which, in
the manner hereinafter described, the end of the tube b is firmly secured in the
tubular socket a; d, d', is the screw pin and d² the screw nut by which the enlarge-
ment of the expander c is effected; e is a washer employed between the screw
nut and the socket a.
The end of the tube b has a slot b₁ of a width proper to engage by a sliding
motion with the stem of the screw pin d and the opening in the expander c is of a
width proper to engage by a sliding motion with the bevelled edges of the head d'
of the screw pin d (see Figure 3).
The parts are put together in the following manner.
The screw pin d having been passed from the inside through the hole in the
socket a and the washer e and screw nut d having been passed on to the screw
pin, the tube b with the expander e in place is passed into the socket a so as to
engage the slot b' with the stem of the screw pin d. The screw nut d² is screwed
in the direction proper for drawing the screw pin d outwards by which action
the bevelled edges of the head d' of the screw pin d are made to slide up the
corresponding bevelled edges of the expander c and the said expander is thereby
enlarged and opening the slot 62 in the tube b causes the tight fitting or jamming
of the tube within its socket.
Where for greater strength and security it is thought necessary or desirable
the open side of the expander c may be made thicker than the side opposite thereto
as in Figure 4 and the head d' of the screw pin d made thicker than in the
arrangement Figures 1, 2 and 3 so as to increase the bearing between the thickened
bevelled edges of the expander and the bevelled edges of the head of the screw pin.
According to another arrangement of our invention the bevelled edges of the
expander and head of the screw, pin may be dispensed with. In this case
the edges of the expander are turned slightly inwards and receive the head of the
screw pin which on being drawn outwards by the screwing up of the screw nut
causes the flattening of the turned in edges of the expander and the consequent
increase in diameter of the expander and the binding of the tube thereby in the
lug.
'
This arrangement of our invention is illustrated in cross section in Figure 5.
c, care the slightly turned in edges of the expander c which rest on the
head of the screw pin d and are drawn upwards on the screwing home of
the screw nut d thereby causing the expansion of the expander c and the binding
of the end of the tube within the socket a.
According to another arrangement of our invention the expander, or the tube
itself, in which case the expander is dispensed with, may have in place of the slot
described an inwardly projecting corrugation or depression at one side and a hole
in the said corrugation or depression for the screw pin to pass through. By the
drawing outwards of the screw pin the flattening of the corrugation or depression
is effected and the size of the tube within the lug increased to such an extent as
to firmly secure the parts together.
This arrangement of our invention is illustrated in longitudinal section in
Figure 6, plan in Figure 7 and cross section in Figures 8 and 9 the joint being
without an expander; that is to say, the corrugation or depression referred to is
made in the tube 6 the said corrugation or depression being marked 63 (see
Figure 8). The head d¹ of the screw pin d bears against the underside of the said
corrugation so that on the screwing home of the screw nut da it tends to flatten
the corrugated part and thereby increase the size of the end of the tube within
the socket a and secure the firm attachment of the parts together.

page_text: Where it is difficult or impracticable to pass the screw pin d through the hole
in the corrugated tube and lug from the inside as in Figures 6, 7 and 8 we attach
to the inside of the corrugated tube, preferably by soldering, an internally screwed
washer or nut e as in Figure 9 and we pass the screw pin through the lug and
tube the screwed end of the pin taking into the washer or nut 2 and by
drawing it outwards flattening the corrugated part 3 of the tube b.
Where a corrugated expander is employed in the arrangement Figures 6, 7, 8
and 9, the tube is preferably left plain as in the arrangements Figures 1 to 5
both inclusive.
In order to prevent the turning of the screw pins d in the arrangements
Figures 5 to 8 both inclusive on the screwing home of the screw nuts d³, the
parts of the screw pins d at their junction with the heads d' are made preferably
square or angular in cross section.
Although we have only described our invention with reference to a joint in
which the tube is passed into the lug we wish it to be understood that it is equally
applicable to a joint in which the tube takes on the exterior of the lug the lug
in this case having a slot with bevilled edges to permit of the expansion of the
lug within the unslotted tube.
Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed, we would have it understood that
we are aware of the Specifications of Henry Belcher, Frederick Easom, and
Frederick Westwood Nos. 24,564, 25025 and 29715 A.D. 1896 and of the Specifi-
cation of Christopher Harcourt Shacklock No. 28050 A.D. 1897, and that we
do not claim anything described or claimed therein, we declare that we claim as
our invention:―
First The improvements in brazeless joints for the tubular junctions of
the frames and other parts of velocipedes and motor and other carriages herein-
before described and illustrated in Figures 1 to 4 both inclusive of the
accompanying drawing the said improvements consisting in making a slot in
the smaller tubular part and in providing the said smaller slotted tubular part
with an open ring or expander the edges of which are bevelled; the smaller
slotted tube and expander taking in an outer unslotted tube and the combination
therewith of a screw pin and nut the stem of which screw pin occupies a hole in
the unslotted tube the edges of the head of the screw pin being bevelled and
engaging with the bevelled edges of the expander substantially as and for the
purpose herein before described and illustrated.
Secondly The modification of the arrangement claimed in the prior claim
herein before described with reference to Figure 5 of the accompanying drawing,
the said modification consisting in providing the ring or expander with slightly
turned down edges in place of bevelled edges the said turned down edges bearing
on the head of the screw pin substantially as and for the purpose hereinbefore
described and illustrated.
Thirdly The modification of the arrangement claimed in the first claim here-
inbefore described with reference to Figures 6, 7, 8 and 9 of the accompanying
drawing, the said modification consisting in making in the expander or in the
inner tubular part where an expander is dispensed with, a corrugation by the
flattening of which by the action of the screw pin and nut the inner tube is
expanded substantially as and for the purpose hereinbefore described and
illustrated.
T
11
1
1000
JOHN VERNON PUGH,
HEBER ISAAC PEDLEY.