Improvements in the Method of Jointing the Parts of Bicycles and similar Parts in other Machines or Apparatus.
Year: 1897

page_text: Date of Application, 9th Oct., 1897
Improvements in the Method of Jointing the Parts of Bicycles and
similar Parts in other Machines or Apparatus.
I, JOHN EDWARD ROGERS, of 85, Sycamore Road, Smethwick, near Birmingham,
Machinist, do hereby declare the nature of this invention to be as follows:-
The construction of the lugs and brackets of a bicycle are so well known that
a detailed description is not necessary.
Therefor we will suppose we are jointing the end of a piece of tube to the pro-
jection on the lug or bracket prepared to receive it in accordance with my inven-
tion.
The end of the tube to be jointed would have a ferule or short length of tube
fitted tight inside it the outside diameter of the end of tube with ferule in would
be a good fit in the projection of lug or bracket in which it has to be fixed.
To fix finally the end of the tube in the projection on the lug or bracket I
construct a collar large enough to slide over the tube to be fixed, and tapered
internally to suit the taper of the projection of the lug or bracket to which the
end of the tube has to be fixed.
The inside of this collar is screwed so that to finally fix the end of the tube
in the projection on the lug or bracket, this screwed collar is brought over the
tube on to the taper on the projection from the lug or bracket when the operation
of screwing up makes the thread in the collar grip the taper on the projection
on the lug or bracket causing it to contract on the tube inside and firmly holding
it in its place.
I may cut a slot or slots along the projection on the lug or bracket to cause
the projection to contract under the. screwed collar more freely or I may screw
the outside of the projection to suit the thread in the collar.
To insure the parts to be joined not shifting when the collars are being screwed
up I should fix them in their places first with a small pin screwed through the
ends to be jointed.
To joint the handle bar to its pillar, I should construct, the pillar with a taper
projection on either side at the top similar in form to the projections on the before
mentioned lug or bracket so that the pillar would be in the form of a T the
horizontal of the T being two taper projections which are bored out internally
to receive the handle bar.
To fix the handle bar to the pillar the top of the pillar would be sawn through,
the handle bar placed in position, the top part of the pillar replaced and the
screwed collars screwed up the projections on either side of the pillar when the
handle bar is held in the position required.
T: 0th
of Ontahan 1907

page_text: Improvements in the Method of Jointing the Parts of Bicycles and
similar Parts in other Machines or Apparatus.
I, JOHN EDWARD ROGERS, of 85, Sycamore Road, Smethwick, near Birmingham,
Machinist, 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:-
Figs. 1, 2, 3 and 4 of the accompanying drawing shew a joint constructed
according to my invention.
Like letters shew like parts in each fig.
(B) is the tube to be jointed to lug (A).
The tube (B) has the end to be jointed strengthened preferably by means of
ferrule (C) driven in tight.
Collar (D) is prepared as shewn with a thread inside tapering in the length of
collar (D) at about the same angle as lug (A).
Lug (A) has a thread started on its end on which collar (D) takes its grip.
The pins (E) are for fixing the position of the parts of the joint.
Thus it will be seen that to make a joint according to my invention the end
of the tube (B) is strengthened preferably by ferrule (C) the end of tube (B)
fitted with ferrule (C) is fitted into lug (A) as shewn, the collar (D) is then
screwed on the end of lug (A) which is caused to contract by the screwing up of
collar (D) and collar (D) can be screwed up by reason of its narrow section so
tightly that it contracts the end of lug (A) on to tube (B) without slitting or in
any way mutilating lug (A) and also by reason of the strengthened end of tube (B)
the grip can be made sufficiently strong to make a clean metallic joint without
the further aid of solder of any description or destroying a very necessary quality
in this class of joint viz. that of being detachable.
To ensure the relative positions of the parts of the joint the screws or pegs (E)
are used.
Having now particularly described and ascertained the nature of my invention,
and in what manner the same is to be performed I declare that what I claim
is:
1. The combination of the end of tube (B) with ferrule (C) fitted into prepared
lug (A) in combination with collar (D) and screws or pegs (E) forming a joint
substantially as shewn and described.