An Improved Combined Steering Bolt and Lock for Cycles.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improved Combined Steering Bolt and Lock for Cycles.
JOHN GORE, Mechanical Engineer, 17, Vale Road, Sutton, Surrey, do hereby
declare the nature of this invention to be as follows;-
This invention relates to an improved steering bolt, to which is connected a lock
and key, and which may be fixed to the head or steering attatchment of cycles. In
carrying out my invention I drill a hole through the head tube, of the frame, and
also through the inner steering tube or rod. Opposite these holes I place a sliding
bolt, the frame of which is fixed to the head, by a suitable attatchment. And
in such a position, that when the bolt is pressed inwards it passes through the
holes in the head, and steering rod, or tube-and bolts the steering gear. This
bolt has a slot or grove in it, which ends in a hole. In this grove slides the
catch of a lock. The bolt can be freely pressed backwards and forwards, while the
catch remains in the grove, but when the bolt is placed in such a position that
the catch of the lock, comes opposite the hole in the grove, the catch can be
locked into the hole in the grove, preventing the bolt from being withdrawn from
the steering rod untill it has been unlocked. I preforably use an L shaped grove,
and a spring catch lock.
Dated this 92nd day of August 1898
An Improved Combined Steering Bolt and Lock for Cycles.
I, JOHN GORE, of 17, Vale Road, Sutton, in the County of Surrey, Mechanical
Engineer, 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 a head lock for a cycle in which a locking bolt can be
fixed in its operative as well as in its inoperative position by a locking device. The
bolt, to enable the locking device to engage with it, is preferably grooved and
recessed, or provided with other depressions in its surface.
In the accompanying drawings, which illustrate one construction of head lock
for cycles according to this invention,
Figure 1 is a perspective elevation of the lock applied to the head of a cycle.
Figure 2 is a front elevation of the lock partly in section on the line 2-2 of
Figure 3 and with the cover removed:
Figure 3 is a plan of the parts illustrated in Figure 2 with the addition of the
head and steering tubes which are shown in section.

page_text: Figure 4 is an elevation of the bolt.
Like letters of reference indicate like parts throughout the drawings.
The locking bolt A is carried in a bearing B which is clamped, brazed or other-
wise secured to the head tube C in a plane normal thereto. In the construction
illustrated the bearing forms part of one portion of a divided ring D which is
clamped to the head tube C by screws D¹; the ends of these screws are intended
to be burred or rivetted over after fixing the lock so as to present obstacles to the
surreptitious removal thereof.
A groove is cut in the periphery of the shank of the bolt A and a locking device
is arranged to engage with this groove, a part A¹ of which is preferably longitu-
dinal for a distance equal to that through which the bolt is moved from its
operative to its inoperative position. At each end of the portion A¹ the groove
is extended laterally at A2 and A3 around about a quarter of the circumference
of the bolt A. A recess A is formed at the end of the groove A² and a similar
hole A may be bored at the end of the groove A³.
The locking device which engages with the grooves and holes may conveniently
take the form of a spring-controlled pin E, (Figure 2), which passes through a
hole in the bearing B. The pin is carried on an approximately rectangular
frame E situated in an extension lug 12 on the divided ring D, and is pressed
into the groove in the bolt by a spring F carried on a pin D³ fixed to the fug D².
The frame E is free to move, subject to the action of the spring F, between the
guides D on the edge of the lug D2, and this movement may be effected by an
ordinary lever key G, (Figure 1) placed on the pin D³, its web bearing against the
inclined surfaces E2 of the frame E. The locking device is enclosed within the
bracket 1 by a cover De rivetted or otherwise secured thereto. Normally the
pin E is pressed into the grooves and recesses in the bolt A; when in a recess
the bolt is locked and cannot be moved until the pin is withdrawn by means of
the key G.
When the bolt A is out of action the pin E is to be engaged with the hole A³
to keep the bolt inoperative; assuming that it is thus held and that it is desired
to lock the steering of a cycle, the key is inserted in the lock and
turned half round, thus withdrawing the pin 1 out of engagement with the hole A
but not free of the groove A³: the bolt is then turned until the pin comes into
contact with the side wall of the groove A¹, when the key may be removed from
the lock and the bolt pressed inwards entering coincident holes in the head and
steering tubes and preventing their relative angular displacement. Next the bolt
may be so turned that the hole A is brought over the pin E which is pressed into
it by the spring F, thus rendering the bolt immovable and securely locking the
cycle to which it is applied. To unlock the steering, the key is inserted and
given a half turn, unlocking the holt, which may then be withdrawn from engage-
ment with the steering tube, and on removing the key and turning the bolt to
bring the hole A above the pin E, the bolt is re-locked in its inoperative position.
Various other means may be adopted for carrying out this invention, for example
the described arrangement of grooves and recesses may be replaced by other depres-
sions such as two circumferential grooves on the bolt occupying corresponding
positions to those of the grooves A2 and A. In this case the pin E is lifted out
of engagement with the grooves when it is desired to operate the bolt. Or two
recesses only, omitting the grooves A1 A2 A³, may be formed in the bolt which
then must be also provided with a feather or other means to prevent rotation.
Or, in the arrangement described and illustrated the hole A5 may be dispensed
with, the bolt being locked in its operative position only.
Or, again, the groove described may take the form of a helix.
Instead of making the locking device automatic as described a lock with a non-
automatic pin or catch may be employed.
Although this invention has been described with reference to a head lock, it
'may be applied to parts of a cycle other than the head, such as for instance the
crank bracket.

page_text: 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. The combination with the locking bolt of a head lock for a cycle of a locking
device whereby the bolt can be fixed in either its operative or inoperative
positions.
2. In a head or similar lock for a cycle the combination with a bolt such as A
having depressions in it of a locking device to engage that bolt substantially as
described.
3. The complete cycle lock substantially as described or illustrated in the accom-