Improvements in Bioyoles, Tricyoles, and other Velocipedes.
Year: 1891

page_text: Date of Application, 6th Oct., 1891
Complete Specification Left, 12th Jan., 1892-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Bioyoles, Tricyoles, and other Velocipedes.
CHRISTOPHER SHACKLOCK, of Chapel Street, Beeston, in the County of
Nottingham, Foreman Fitter do hereby declare the nature of this invention to be
as follows:-
This invention has for its object an improved method of fastening or locking the
front part of a bicycle or tricycle in a fixed position so as to prevent the machine
from collapsing or falling down when reared against a wall or other object, and is
more particularly applicable to that class of cycles known as "Socket Steerers" in
which the connecting tube from the front wheel forks to the handle bar passes
through a socket tube forming front part of frame.
On the socket tube of frame and by preference on the upper part of same I
form a slot in which I fix a sliding bolt the normal action of which is to draw
downwards through the action of a spiral spring fixed at its lower end. Into this
bolt I fix a small arm or lever which works upwards or downwards in a slot formed
in the metal cover to bolt, which slot by preference I make in a spiral form and at
the upper end of same is formed a hollow into which the lever falls, and is held
firm by the tension of the spring at its base. On the front part of the machine
which works or turns in the socket tube and by preference on the handle bar pillar
clip to which the lamp bracket is usually attached, I form a boss in which is a slot
or hole to receive the upper end of bolt.
When the locking action is in its normal position the front part of machine is
free to turn as required for the purpose of steering. When it is desired to lock
the machine the lever in bolt is turned to one side and rising in the spiral slot
draws the bolt with it forcing the end of same into the hole or slot in the handle
bar pillar clip, thereby locking the machine together. The lever falling into the
hollow formed at the upper end of spiral slot retains its position until force is
exerted to unfasten same.
Dated this Fifth day of October Eighteen hundred and ninety-one.
CHRISTOPHER SHACKLOCK,
Chapel Street, Beeston, near Nottingham.
COMPLETE SPECIFICATION.
Improvements in Bloycles, Tricycles, and other Velocipedes.
I CHRISTOPHER SHACKLOOK, of 24 Chapel Street, Beeston, in the County of
Notts, Foreman Fitter, 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 :-
My invention relates to an improved method of fastening or locking the steering
fork of a bicycle, tricycle, or other velocipede to the steering head thereof, and it
is more particularly applicable to that class of cycle known as "Socket Steerers".
in which the connecting tube or steering post from the front wheel fork to the
handle bar passes through a socket tube forming part of main frame, and it has
for its object, preventing the steering wheel from swinging round or the machine
from falling down when reared against a wall or other object.
I attain this end in the manner shown by the accompanying drawing in which
Figure 1. is a broken view in side elevation of a steering socket fitted with
my invention, the locking device being in operation,

page_text: Figure 2. is a broken view in front elevation thereof the locking device being
out of action, and
Figure 3. is a broken view in plan on line x, x, Figure 1.
Throughout the views similar parts are marked with like letters of reference.
On the socket tube A of the main frame, and for preference on the upper part of
same, is formed or fixed a snug B in which a vertical sliding bolt C works the free
end of which is adapted to engage with a hole d in another snug D formed on or
fixed to an adjacent part of the steering post E. The bolt C is normally kept
disengaged with the hole d by a spiral spring F on the lower end of the bolt C,
acting between a head c thereon and the underside of the snug A. To this bolt is
fixed a small arm or lever G which works up and down in a slot a formed in the
snug A the said slot being preferably of spiral form, and at its upper end is formed
a hollow a¹ into which the arm or lever G engages and is held so engaged by the
tension of the spring F. The snug B is preferably formed on or fixed to the handle
bar pillar clip to which the lamp bracket is usually attached as shown by the
accompanying drawing. When the locking device is in its normal position the
front fork of the machine is free to turn as required for the purpose of steering,
and when it is desired to lock the steering, the arm or lever of the bolt is turned to
one side and rising in the spiral slot draws up the bolt and so forces the end of it
into the hole in the snug on the steering post, thereby locking the two parts of the
machine together, the lever falling into the hollow formed at the upper end of
the spiral slot by the action of the spring is retained in position until force is exerted
to unfasten it.
I wish it to be particularly understood that I do not limit myself to the precise
details of construction hereinbefore described and illustrated by the accompanying
drawing, but that I hold myself at liberty to make such changes and alterations as
fairly fall within the spirit and scope of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1st. The improved locking device for the steering of bicycles, tricycles and
other velocipedes, as hereinbefore described and illustrated by the accompanying
drawing.
2nd. In a steering lock the combination of the snug B mounted on the socket A,
of the steering head or its equivalent, of the sliding bolt C working therein, of the
snug D having a hole d and mounted on the steering post E or its equivalent, of
the spring F adapted to keep the sliding bolt C disengaged with the hole d in the
snug D, of the lever G mounted on the sliding bolt C, and of the spiral slot a with
top depression a¹ in the snug A, all combined, arranged and operating, as and for
the purpose set forth.
the purpose set forth.
Dated this 12th day of January 1892.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.