Certain Improvements in Cycle Steering Locks.
Year: 1898

page_text: Date of Application, 1st July, 1898
18
2000
PROVISIONAL SPECIFICATION.
Certain Improvements in Cycle Steering Locks.
We, JAMES WARD MILLIGAN, of 36, Lancaster Street, in the City of Birming-
ham, Director and Secretary of Perry and Company Limited, and FRED
OLDFIELD, of 36, Lancaster Street, aforesaid, Works Manager to the said com-
pany, do hereby declare the nature of this invention to be as follows:-
:-
This invention consists of the herein described improvements in the construc-
tion of steering locks which are applied to the steering heads of safety bicycics
and other front steering velocipedes for the purpose of tightening or fixing the
steering tube in the head to prevent the same from turning when the velociped
is propped up against a wall or other support.
In one form of steering lock constructed in accordance with this invention we
provide a metal bush or gland which is screwed into some part of the cycle head
This bush or gland is tapped
preferably into one side of the top lug of the same.
and fitting in it there is a screw provided with a milled head or lever arm or
otherwise conveniently shaped for turning. In order to prevent the set screw
from coming unscrewed out of the bush or gland we provide a small safety screw
which is screwed into the inner end of the set screw and has a head which works
in a part of the bush or gland which is recessed out to a larger diameter than the
tapped part wherein the set screw works. Fitting in this recessed part of the
bush or gland we provide a pressure block one end of which is hollowed out to
bear against the steering tube. In order to lock or tighten the steering tube in
the steering head the set screw has to be turned in one direction so as to press
the pressure block against the steering tube and thus tighten the same in the
steering head. The steering tube is released by turning the set screw in the
opposite direction. In order to prevent the pressure block from turning in the
bush or gland the pressure block is by preference made with a small side pro-
jection which takes into a longitudinal slot in the bush or gland.
In another arrangement of carrying out this invention the pressure block or
pressure piece is made with a stem which takes into a central axial hole in the
set screw and in this case the pressure block has or may have a curved metal
pad or pressure piece rivetted or otherwise fixed to it at one end to bear against
the steering pillar.
In another arrangement of steering lock constructed according to this inven-
tion, instead of the set screw being arranged to point directly towards the steer-
ing tube as in the arrangements above described, the said set screw is arranged
as a tangent to the circle of the steering tube and passes through a screw threaded
hole in a boss or swell preferably formed on the top lug or on the bottom lug of
the cycle head. The said set screw is turned to a somewhat conical or taper
shape to suit the side of the steering tube and is so arranged that when the set
screw is turned in one direction the conical or taper part of the set screw bears
against the side of the steering tube and thus locks or tightens the same in the
steering head and when the set screw is turned in the opposite direction the

page_text: conical or taper part of the set screw moves away from the steering tube and the
latter is then free to turn in the head.
Dated this 30th day of June 1898.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
Certain Improvements in Cycle Steering Locks.
We, JAMES WARD MILLIGAN, of 36, Lancaster Street, in the City of Birming-
ham, Director and Secretary of Perry and Company Limited, and FRED
OLDFIELD, of 36, Lancaster Street, aforesaid, Works Manager to the said com-
pany, 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:-
This invention consists of the herein described improvements in the construc-
tion of steering locks which are applied to the steering heads of safety bicycles
and other front steering velocipedes for the purpose of tightening or fixing the
steering tube in the head to prevent the same from turning when the velocipede
is propped up against a wall or other support.
We will describe this invention by referring to the accompanying drawing
on which Fig. 1 shews on a small scale the steering head of a bicycle with this
invention applied; Fig. 2 is a full size sectional plan on line X X of Fig. 1;
Fig. 3 shews separately various parts of the steering lock illustrated by Figs. 1
and 2; Fig. 4 is a cross sectional plan of the steering head and steering tube
and lock illustrating a slightly modified form of this invention; Fig. 5 shews
separately some of the parts of which the steering lock shewn by Fig. 4 is formed;
Fig. 6 is a sectional plan of the steering head and steering tube and lock illus-
trating a further modification of this invention. The same letters of reference
indicate the same or corresponding parts in all the figures.
We will first describe the arrangement of our invention illustrated by Figs. 1,
2, and 3.
We provide a metal bush or gland A which at a is screwed into some part of
the cycle head B preferably into one side of the top lug b' of the same. This bush
or gland A is tapped at and fitting in it there is a screw C provided with a
lever arm c¹ or a milled head or otherwise conveniently shaped for turning. In
order to prevent the set screw C from coming unscrewed out of the bush or
gland A we provide a small safety screw D which is screwed into a hole in the
inner end 2 of the set screw C and this screw ]) has a head which works
in a part a³ of the bush or gland A which is recessed out to a larger diameter
than the top part a² wherein the set screw C works. Fitting in the recessed part a³
of the bush or gland we provide a pressure block E which is hollowed out to
bear against the steering tube F (see Figs. 2 and 3).
In order to lock or tighten the steering tube F in the steering head b¹ the set
screw C has to be turned in one direction so as to press the pressure block E for-
ward against the steering tube F and thus tighten the steering tube in the steer-
ing head. The steering tube is released by turning the set screw C in the oppo-
site direction.
In another arrangement of carrying out this invention illustrated by Figs. 4
and 5, the pressure block or pressure piece E is made with a stem e¹ which takes
into a central axial hole in the set screw C and the latter is prevented from

page_text: coming unscrewed out of the bush or gland A by its inner end being spun
over a washer & contained in the recessed part of the bush over a washer G
contained in the recessed part a³ of the bush or gland A.
In another arrangement of steering lock constructed according to this inven
tion and illustrated by Fig. 6 instead of the set screw C being arranged to point
directly towards the steering tube as in the arrangements above described, the set
screw C is arranged at a tangent to the circle of the steering tube F and passes
through a screw threaded hole ¹ in a boss or swell H formed on the top lug b₁
or on the bottom lug of the cycle head. The set screw C is turned to a some-
what conical or taper shape at to suit the side of the steering tube F and is so
arranged that when the set screw is turned in one direction the conical or taper
part of the set screw C bears against the side of the steering tube F and thus
locks or tightens the same in the steering head and when the set screw G is.
turned in the opposite direction the conical or taper part of the set screw C
moves away from the steering tube F and the latter is free to turn. The collar c
on the end of the set screw C prevents the screw from coming unscrewed out of
the lug b'.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what we
claim is:
1. In a cycle steering lock the combination, with the cycle head and steering
tube, of the bush or gland A screwed in the cycle head and made with the
recess, the set screw C screwed in the bush or gland, the small headed screw D
working in the recess a³ of the bush or gland and screwed into the set screw C
to prevent the same from screwing out of the bush, and the pressure piece E
shaped to fit in the recess and against the steering tube and adapted to be
pressed against the steering tube by turning the set screw C, the parts being
constructed arranged and combined together substantially as described and illus-
trated by Figs. 1, 2 and 3.
2. In a cycle steering lock the combination, with the cycle head and steering
tube, of the bush or gland A screwed in the cycle head and made with the
recess the set screw C screwed in the bush or gland and prevented from
screwing out of the bush by the washer G fixed on its inner end, and the pressure
piece made with a stem e¹ fitting in a hole in the set screw and shaped to fit
against the steering tube by the turning of the set screw C, the parts being con-
structed arranged and combined together substantially as herein before described
and illustrated by Figs. 4 and 5 of the accompanying drawings.
'
3. In a cycle steering lock the combination, with the cycle head and steering
tube, of the set screw arranged tangential to the steering tube and turning in
a screw threaded hole in a boss or swell in the top lug or in the bottom lug of
the cycle head, said set screw being made of a conical or taper shape at c to fit
against the said steering tube so that when the set screw is turned in one direc-
tion the conical or taper part of the said set screw locks the steering tube and
when the set screw is turned in the opposite direction the steering tube is free
to turn, substantially as described and illustrated by Fig. 6.
Dated this 30th day of March 1899
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.