Year: 1897

page_text: We, CHARLES ARTHUR MORGAN of 12 Nelson Road, Stroud Green, London N.
Mechanical Draughtsman, and HENRY HART of 2 Great Russell Mansions, Bloomsbury,
London W.C. Engineer do hereby declare the nature of our invention to be as
follows:-
Our invention consists of a head-lock capable of being readily applied to a cycle
which, in its construction, has not been provided with such a device.
The head-lock may be constructed in various ways of which the following are given
as examples.
A wire-clip may be constructed in the form of a yoke capable of being sprung
open when it is to be applied to the cycle so that when it resumes its original form
it will grip both the steering pillar or handle-bar-stem and the steering head; if it
be desired to increase the grip of the head-lock a screw, bolt and nut, cam, lever,
india-rubber-ring, strap or other tightening device may be applied to it, the yoke if
desired being provided with eyes or projections whereon the said tightening device
will operate.
The clip may be provided with two arms which, when the head-lock is in position
on the cycle engage with the sides of either say, the top bar or tube of the cycle
frame or the steering pillar or handle bar stem, the tightening device in this
instance serving to tighten the clip on the steering pillar or top tube or on both these
parts simultaneously, or the two arms may cross each other and be capable of being
sprung apart sufficiently to engage with the top-tube or the steering pillar or handle-
bar stem, in which case the tightening device may not be necessary as the
steering-pillar will be sufficiently gripped, though if desired a tightening device may
be applied as previously described.
The clip herein before described may be formed in two parts, hinged together, the
tightening device serving to tighten these parts upon the cycle in the desired
position.
The clip may be formed of two partly coiled and partly straight wires capable when
in position on the cycle of preventing the turning of the handle-bar-stem in
respectively opposite directions.
The head-lock may consist of two split bands or clamping rings capable of being
secured, one to the steering pillar or handle-bar-stem, and the other to the steering-
head or the before mentioned top-tube, either of these bands or clamping rings
carrying a sliding or hinged bolt or other locking device adapted to engage with an
opening, recess or projection on the other of the said bands or clamping rings, a
spring or detent, if desired, being provided for retaining the locking device in either
of its two positions.
The before mentioned head-lock may be padded in any desired manner to prevent
scratching of the enamel or plating of the cycle.
T
1007

page_text: Improvements in Head-locks for Cycles.
We, CHARLES ARTHUR MORGAN of 12 Nelson Road, Stroud Green London N.,
Mechanical Draughtsman, and HENRY HART formerly of 2 Great Russell Mansion's
Bloomsbury W.C. but now of 4 Wellesley Mansions West Kensington W. Engineer,
do hereby declare the nature of this invention and in what manner the same is to
performed to be particularly described and ascertained in and by the following
statement:—
Our invention consists of a head-lock capable of being readily applied to a cycle,
which, in its construction, has not been provided with such a device.
The head-lock may be constructed in various ways of which several examples are
represented in the accompanying drawings wherein :-
Fig. 1 is a side elevation of one form of the head-lock applied to a cycle, of which
only a portion is shewn.
Fig. 2 is a back elevation of the head-lock shewn in Fig. 1.
Figs. 3 and 4 are respectively a side elevation and a back elevation of a second
form of the head-lock.
Fig. 5 is a back elevation of a third form of the head-lock and.
Fig. 6 is a view similar to Fig. 1 shewing another form of the device, which is
represented in plan in Fig. 7.
Like letters of reference indicate like or similar parts throughout the various
Figures.
The head-lock represented in Figs. 1 and 2 consists of two split bands or clamping
rings A B, of which the ring A is adapted to embrace the handle-bar stem C and the
ring B is adapted to embrace the top stay D. The rings A B are connected together
by a link or arm E of which the lower end is secured between the lugs b of the
clamping ring B by a bolt f and nut f' and the upper end is secured between the
lugs a of the clamping ring A by a bolt g, nuts g¹ and cam lever g² of which the last
mentioned is pivotted to the bolt g and adapted to bear upon one of the lugs (.
When the before described head-lock is applied to the cycle the clamping ring B
is maintained tight upon the top-stay D and the cam-lever g² is normally in the
position in which it is shewn in Fig. 1 and in dotted lines in Fig. 2, the clamping
ring A then being loose on the handle-bar stem C which is therefore free to turn;
when however it is desired to lock the handle-bar stem C the cam-lever g² is raised to
the position shown in full lines in Fig. 2 so as to force the two lugs a towards each
other and against the arm E and thereby tighten the clamping ring A on the
stem C.
To fit the head lock to the cycle the clamping rings A and B are detached from the
arm E by withdrawing the bolts and g, and the clamping rings are then forced on
to the handle-bar stem C and top stay D respectively, after which the bolts ƒ and g
are replaced and secured in position by the nuts f¹ g¹ respectively or instead of the
clamping ring A being separated from the arm E as previously described the stem C
may be detached from the steering pillar C¹ and passed through the said clamping
ring and afterwards again attached to the steering pillar.
If desired we may form holes through the cam-lever g² and bolt g to receive the
hasp of a padlock so that the head-lock may be locked in its operative position and
the cycle be thereby prevented from being ridden by unauthorised persons.
In Figs. 3 and 4 we have shewn the head-lock constructed principally of a single
strip of sheet metal bent so as to form the two clamping rings A B and the arm E
which latter is embossed or corrugated as at e to give it the necessary rigidity. In
this arrangement the strip of sheet metal constitutes at one end a lug b and is bent
round to form the clamping ring B, then extends upwards to form one side of the

page_text: arın E, then is bent round to form the clamping ring A and then extends downwards
to form the second side of the arm E, the two ends of the sheet metal strip being
united by the bolt f. In this example the bolt g is shewn to be provided with a
wing nut g³ for tightening the clamping ring A on the handle-bar stem C.
In Fig. 5 we shew a rigid clamping ring A having a pinching screw a' connected
to the arm E and provided with a clamping ring B similar to that represented in
Figs. 1 and 2.
In the arrangement shewn in Figs. 6 and 7 the clamping ring A is formed with
two projections a² and is always retamed fixed upon the handle-bar stem C and the
arm E is pivotted to the clamping ring B so that the said arm may be caused to
occupy either the position in which it is shewn in full lines in Fig. 6 wherein it
engages with the projections a¹ and thereby locks the handle-bar stem C, or the
position in which it is represented in dotted lines wherein it is disengaged from the
handle-bar stein, a spring which may be clamped between the ring B and top
stay D serving to retain the arm E in either of its two positions until it is next
moved by the cyclist.
In each of the examples illustrated we have shewn the head-lock connected to the
top stay D of a gentleman's cycle but it will be readily understood that by suitably
modifying the shape of the arm E, the clamping ring B could be attached to another
adjacent part of the cycle frame for instance it might be attached to the steering
head D which adjacent part of the frame or steering head would be the arrangement
in a ladies cycle wherein the top stay does not exist.
Although we have hereinbefore described the clamping ring A as engaged with
the handle-bar stem C we may obtain the same result by engaging it with the
steering pillar C¹.
The head-locks instead of being constructed as shewn in the accompanying
drawings may be formed of wire bent so as to provide the holes necessary for the
fastening devices.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1 A cycle head-lock comprising two clamping rings adapted to be secured, one to
the handle-bar stem or steering pillar and the other to the cycle frame and an arın
connecting the two clamping rings substantially as herein before described with
reference to the accompanying drawings.
2 In a cycle head-lock the combination with two clamping rings adapted to be
secured, one to the handle bar stem or steering pillar and the other to the cycle
frame, of an arm adjustably connected to one of the clamp rings and adapted to be
engaged with and disengaged from the other of the said rings substantially as
hereinbefore described with reference to the accompanying drawings.
3 The cycle head-lock substantially as herein before described and illustrated in
Figs. 1 and 2, Figs. 3 and 4 Fig. 5 or Figs. 6 and 7 of the accompanying drawings.
Dated this 27th day of November 1897.
CHAS. A. MORGAN.
HENRY HART.