Improvements in or connected with Cycle Brakes.
Year: 1898

page_text: Date of Application, 19th Jan., 1898-Accepted, 12th Mar., 1898
COMPLETE SPECIFICATION.
Improvements in or connected with Cycle Brakes.
I, AUGUST LAIS, of 16, Münsterberg, Basle, in the Republic of Switzerland,
Master Locksmith, 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 has for its object a cycle brake, the operating mechanism of
which is essentially arranged inside the handle bar in contrast to the brake
mechanisms at present employed, and is operated by a quarter revolution of the
steering bar handles.
One form of construction of this improved cycle brake is shown in the accom-
panying drawings, in which Figure 1 is an elevation of the brake and of a handle
bar and front wheel. Figures 22 2" 2 are longitudinal and cross sections
respectively of the brake device.
A brake lever A connected with the cycle frame B (Figures 1 and 2) in any
suitable manner is pivoted on a pin z, Figure 2, and carries on one arm of the
lever a brake block B whilst the other arm of the lever is pivotally connected with
a rod or link C. The rod C is guided in a spring bush or socket 1) mounted in
the interior of the handle bar tube L and at its upper free end is screwed into
a screw head E connected with a cord F. In order to secure the loops of the cord,
Figure 24, which is drawn through the screw head E, 1 employ a clamp block &
composed of two clamp pieces or jaws gl g² pressed together by means of a screw a.
The draw cord F runs over a pulley S mounted in a holder H in the upper part of
the handle bar tube L, to the right hand arm of the handle bar L'. In the handle
end of the latter a second clamp block K (Figure 2") composeti of the pieces ¹ k
(similar to the block G hereinbefore described) is arranged in a strengthening
casing or holder J. The clamp block K is provided with a pin M fitting in a
spiral slot N of the handle bar arm L' and is fixed in the casing Q of the handle O
by means of a screw nut b. By turning the handle U to the right the block K
is therefore moved towards the outer end of the tube by means of the pin M, thus
pulling on the cord F and rod C of the brake lever A and compressing the spring f
in the spring bush D and pressing the brake block B against the pneumatic tyre P
of the front wheel. On releasing the handle the brake block B is automatically
raised off the tyre P by means of the spring f..
The brake arrangement herein before described in addition to a minimum of
weight and easy handling has the further advantage that in the case of dismounting
sideways or falling in any way, the brake is automatically applied to the wheel
by the unconscious turning of the handle.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
A cycle brake mechanism arranged in the interior of the handle bar tube and
characterised by the brake lever being automatically drawn off by means of a

page_text: spring bush, and adapted to be drawn on by means of a cord pull connected with
it by means of a screw head and clamp block and running over a pulley arranged
in the upper end of the handle bar tube, to one arm of the handle bar, the drawing
on being effected by means of a second clamp block which is guided by means of
a pin in a spiral slot of the handle bar arm and connected with the handle in such 5
a way that when the said handle is suitably turned the clamp block is drawn
towards the outer end of the tube and thus the cord and therewith the brake lever
are drawn on, substantially as herein before described.
Dated this 15th dox of Tanum 1808
W. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.