Improvements in Cycle Steering Locks."
Year: 1897

page_text: Date of Application, 10th Feb., 1897
Complete Specification Left, 23rd Oct., 1897-Accepted, 18th Dec., 1897
PROVISIONAL SPECIFICATION.
66 Improvements in Cycle Steering Locks."
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Com-
ponents Manufacturing Company Limited, of Bournbrook, near the City of
Birmingham, do hereby declare the nature of this invention to be as follows:-
This invention relates to cycle steering locks, or to means whereby the front
wheel of a safety bicycle, tricycle or other velocipede is rigidly secured in a
lignable or other position relative to the framing, as is desirable when a rider
leaves his machine unattended and leaning against a wall or other support, or
supported by the pedal from a kerb-stone, as when the machine is thus "locked"
there is less liability of the same falling.
My improved steering lock, which is simple and efficient in action, and (by
reason of its small size) neat in appearance, consists of a hollow cylindrical body
part, screwed externally for a short distance from its inner and open end, and with the
screwed part terminated by a nut-facetted flange or collar upon which a spanner takes
in worming the lock-attachment into or out of position, whilst the other part of the
body beyond the flange is plain. The hollow interior of the body is of two diameters,
the part of larger diameter commencing at the inner end extending inwards for a
suitable distance and then being continued through to the other or outer end by the
part of less diameter.
Located within the larger part of the bore is a plunger or bolt, having a stalk or
stem directed from it and proceeding outwardly through the narrower part of the bore
to some distance beyond the outer end of the body part and there terminating in a
milled head or other suitable finger hold. Also located within the larger part of the
bore and surrounding the inner end of the stem or stalk, is a coiled or spiral spring of
suitable strength, bearing at one end against the back of the plunger head or bolt and
at the other against the inside end of the larger part of the bore of the cylindrical
body, so that the normal tendancy of the spring is to force the plunger outwards.
The plunger stalk is fitted or provided with a pair of opposite pegs, lugs or
projections adapted to take respectively into either of two pairs of opposite notches or
gaps cut within the outer end of the lock body and extending from the outer
periphery to the axial hole wherein the stalk works. One of these pairs of notches is
only of slight depth, and when the opposite pegs engage therein, the plunger head is
retained full home within the casing, but the other pair of not ches are of considerably
greater depth and admit of the bolt being shot, in fact, their depth is arranged so as
to be about equal to the throw of the bolt or plunger.
This attachment is screwed into a hole in the outer sleeve of the ball head of a
bicycle or the like, and the plunger end is adapted to engage in a recess, hole or
equivalent in the inner tube or steering post of the same.
Dated the 0th day of February 1897

page_text: .
Improvements in Cycle Steering Locks.
I, CHARLES THOMAS BROCK SANGSTER, Works Manager to the Cycle Components
Manufacturing Company Limited of Bournbrook near the City of Birmingham, 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 relates to cycle steering locks, or to means whereby the front wheel
of a safety bicycle, tricycle or other velocipede is rigidly secured in a lignable or other
position relative to the framing, as is desirable when a rider leaves his machine
unattended and leaning against a wall or other support, or supported by the pedal
from a kerb-stone, as when the machine is thus "locked" there is less liability of
the same falling.
Figure 1 of the accompanying drawing represents a side elevation of a cycle
steering lock, applied to the head of a bicycle, and constructed according to one form
of my invention, in which the spring-operated bolt of the lock is allowed to shoot
into its locking position or into engagement with the steering pillar, and also to be
held or retained back out of such engagement by pegs or other projections upon the
same taking into either a pair of long slots or gaps, or a pair of shallow notches or
depressions cut inwards from the edge of the bracket or outer casing of the lock.
This view shows one of the long slots in the edge of the casing, and the bolt drawn
fully back to take the pegs clear of said gaps.
Figure 2 represents a plan of the lock attachment, showing the short gaps or
recesses, and with the bolt shown pulled full back.
Figure 3 is a horizontal section of figure 1, upon the dotted line x, but the bolt in
this view is shown shot into locking engagement with the steering pillar, and with
the pegs coming at the closed ends of the longer slots.
.
Figure 4 represents a section of the body part of the lock separately.
Figure 5 represents a separate, view of the bolt, with a part of the cap end broken
away to show the pegs on the inside of the same.
Figure 6 represents a vertical section of figure 3, upon the dotted line x¹,
Figure 7 is a section on the same point (x1) of the bolt separately, and
Figure 8 represents a section of the bolt casing or tubular body part upon the
dotted line x², figure 2, but with the bolt removed.
The improved steering lock which is both simple and efficient in action, and (by
reason of its small size) neat in appearance consists of a hollow cylindrical bracket,
body part or tubular casing a, screwed externally at a¹, for a short distance from its
inner and open end a², and with the screwed part terminated by a nut-facetted flange
or collar a³, upon which a spanner takes in worming the lock-attachment into or out
of its position a screw hole b¹, in the outer sleeve b, of a cycle ball head whilst
the other part at, of the body beyond the flange is plain. The hollow interior of the
body is of two diameters a, a, the part of larger diameter a³, commencing at the
inner end and extending outwards for a suitable distance and then being continued
through to the other or outer end by the part as, of less diameter.
Located within the larger part of the bore is a plunger or bolt c, capable of being
turned round therein and having a stalk or stem c¹, directed from it and proceeding
outwardly through the narrower part of the bore to some distance, beyond the outer
end of the body part and there terminating in a mill-edged cap or head c², or other
suitable finger hold. Also located within the larger part of the bore and surrounding
the inner end c³, of the stem or stalk, is a coiled or spiral spring d, of suitable
strength, bearing at one end against the collar c', at the back of the plunger head or

page_text: bolt and at the other against the inside end a7, of the larger part of the bore of the
cylindrical body, so that the normal tendancy of the spring is to force the plunger
outwards into its locking position, in which it engages with a hole g¹, in the steering
pillar g.
The plunger, stalk is fitted or provided with a pair of opposite pegs, lugs or
projections c³, adapted to take respectively into either of two pairs e, f, of opposite
notches or gaps cut inwards from the outer end or edge a³, of the lock body and
extending through the full thickness of the walls. One opposite pair e, of notches is
only of slight depth, being simply recesses made in the edge of the casing, sufficiently
deep to just take the pegs, which, when engaging therein, retain or hold back the
plunger head full home within the casing or in its withdrawn position, but the other
pair f, of notches are of considerably greater depth, and extend for sufficient distance
inwards to admit of the bolt being shot, in. fact, their depth is arranged so as to. be
about equal to the throw or traverse made by the bolt or plunger in moving into
engagement with the steering pillar for the purpose of locking the steering wheel.
Thus, assuming the steering is locked by the bolt being shot into the hole in the
steering pillar, then to release the steering wheel, take hold of the bolt by its milled
head or cap and pull the same outwards, against the force of the spring (which is
thereby compressed) until its pegs are taken quite clear of the long shooting slots f.
By now giving a quarter turn to the bolt the said pegs are brought opposite the
holding back recesses e, and on releasing the cap, they are, by the expansion of the
spring, taken thereinto and the bolt is held back clear of the steering pillar, which
can freely turn within the outer sleeve.
To again lock the pillar the pegs are taken out of the holding back recesses by
withdrawing for a short distance the bolt, which is then given a further quarter turn
to bring the pegs opposite the open ends of the long shooting slots f, and on releasing the
bolt, it is shot full home by the spring, with the said pegs coming at the bottom or
closed ends of said slots as represented in figure 3. Figure 9 represents a
modification of my invention, in which the short recesses f, and long gaps for
controlling the throw or shooting traverse of the bolt c, are formed in the walls of the
cap or head end c², of the bolt whilst the pegs or projections c³, are made on the
outer walls of the cylindrical body part a. This view shows the bolt drawn back and
the long slots e, in the cap thereof opposite the ribs or pegs c³, so that on releasing
the said bolt it will be impelled, by the re-acting force of the compressed spring, into
its shot position, as represented in figure 10.
Figure 11 represents a vertical section of the lock upon the dotted line ³,
figure 10.
Figure 12 is a like section of the bolt separately and
Figure 13 is a section of the body of the lock, separately.
The interior arrangements of this form of my invention are the same as represented
in figures 1 to 8.
Instead of having a pair of pegs or projections on the one part of the lock and
opposite pairs of long and shot gaps on the other part, I may have only one peg,
and one long shot and one shallow recess, disposed preferably opposite to one
another.
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 :-
1
First A cycle steering lock, consisting essentially of a spring actuated bolt,
revoluable connected to and sliding within a fixed casing or bracket and with its
fore end adapted to be shot into, or withdrawn from, engagement with the steering
pillar, and with pegs or projections carried by the one part, engaging with gaps or
their equivalent upon the other part, for determining the in and out positions of the
said bolt, substantially as herein described and set forth.
Secondly-A cycle steering lock, consisting essentially of a spring actuated and
revoluable bolt, capable of sliding within a fixed bracket casing or body part, and

page_text: with the shooting traverse of the former within the latter governed or determined by
pegs, ribs or equivalent projections on the one part engaging respectively with either
shallow holding-back recesses or longer shooting slots in the other part, whereby the
said bolt is either held back in its withdrawn position, or is allowed to shoot fully
home for locking the steering, substantially as described and set forth.
Dated this 22nd der of Otahan 1005
CHARLES THOMAS BROCK SANGSTER
By Henry Skerrett
24 Temple Row Birmingham Agent for Applicant