Improvements in and connected with the Brakes of Cycles.
Year: 1895

page_text: Date of Application, 4th Dec., 1895
°
Date of Application, 4th Dec., 1895
Complete Specification Left, 5th Oct., 1890-Accepted, 7th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in and connected with the Brakes of Cycles.
We, STEPHEN MUIR, of Vittoria Street, in the City of Birmingham, Cycle
Manufacturer, and HENRY GARDINER ATKINSON, of 47 Murdock Road,
Handsworth, near the City of Birmingham, Pattern Maker, do hereby declare
the nature of this invention to be as follows:-
:-
This invention relates to improvements in and connected with the brakes of
bicycles, part of which is also applicable to cycles in general.
We will describe this our invention as applied to what is known as a safety
bicycle Upon the front steering fork, and contiguous to the wheel tyre we provide
a suitable bracket to receive the brake mechanism which consists primarily of two
hinged or pivoted lever arms at whose outer end are carried rollers or other suitable
blocks, which when desired are made to impinge upon the sides of the tyre in a
radial direction towards the centre of such tyre. The other ends of these lever
arms are accommodated to receive an opening and closing movement upon their
joints from a forward and receding motion of a vertical rod. Such arms may be
connected to or operated upon by the beforementioned rod, by means of links, or a
V piece, acting between such arms, or by means of a pin or pins upon such rod
acting in a slot hole or holes in the said arms or slot holes may be provided in the
rod to act upon pins upon the said arms, or by other equivalent device.
This vertical rod is preferably made in two parts, the one to adjustably slide
telescopically into the other. Its upper end is connected to the outer end of a
short crank, which said crank is carried or formed upon a rocking spindle working
in bearings carried from the handle bar of the machine. This rocking spindle is
preferably made tubular in order to reduce weight. The other end of this spindle
is continued and bent to follow the direction of the handle bar, so that its extremity
which forms its handle, lies at a convenient distance below the handle of the
machine handle bar, that is, such brake handle lies at or nearly at right angles to
the rocking spindle. The bearings for the rocking spindle may be readily made
by means of strip metal bent around the handle bar, and further bent into an extra
loop or eye form which latter forms the bearing, such loops being securely clamped
to the bar. By this means a powerful leverage is obtained upon the vertical rod &c.,
while the various parts are easily attachable and detachable, and yet simple in
their construction.
Of course this invention could be readily made to operate upon the back or
driven wheel, and suitably connected to the operating lever on the handle bar, or
other convenient part.
Dated this 4th day of December 1895.
CHARLES T. POWELL,
Applicants' Agent.

page_text: Improvements in and connected with the Brakes of Cycles.
We, STEPHEN MUIR, of Vittoria Street, in the City of Birmingham, Cycle
Manufacturer, and HENRY GARDINER ATKINSON, of 47 Murdock Road,
Handsworth, near the City of Birmingham, Pattern Maker, 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 improvements in and connected with the brakes of
bicycles, parts of which are also applicable to cycles in general.
In order to more clearly explain this our invention we have appended hereunto
an illustrative drawing upon which are figures and numbers of reference similar
numbers referring throughout the several views to the same thing or part.
Fig. 1, is a front view of this our invention.
Fig. 2, is a side view of the lever portion of the invention.
Fig. 3, is a detail view showing the gripping lever arms in their closed
position.
Fig. 4, is a sectional plan view on line A-B Fig. 1 showing the attachment of
the contrivance to the frame of the machine.
Fig. 5, is a plan view in detail of the combined crank, rocking spindle and hand
lever.
Figs. 6 and 7, and 8 and 9, are detail side and front views of forms of clips which
may be used to serve as bearings for the rocking spindle.
Figs. 10 and 11 show modified forms of means of communication between the
vertical rod and the brakes.
We will describe this our invention as applied to what is known as a safety
bicycle Upon the front steering fork 12, (or such other part of the frame near to
the wheel which is to be braked) and contiguous to the wheel tyre 13, we provide
a suitable bracket 14 to receive the brake mechanism, which consists primarily of
two hinged or pivoted lever arms 15, 15, at whose outer ends. are carried rollers or
other suitable blocks 16, which when desired are made to impinge upon the sides of
the tyre 13, in a radial direction towards the centre of such tyre. The other euds
of these lever arms are accommodated to receive an opening and closing movement
upon their joints 17, from a forward and receding motion of a vertical rod 18.
Such arms may be connected to or operated upon by the beforementioned rod, by
means of links 19, 19, or a V piece 20 formed or attached to the rod 18 may act
between such arms as seen in Fig. 10; or in some cases a pin 21 upon the rod 18,
may act in slot holes 22, in the said arms, or vice versa, slot holes may be provided
in the rod to act upon pins upon the said arms, or other equivalent device.
This vertical rod 18 is preferably made in two parts, the one to adjustably slide
telescopically into the other. Its upper end is connected to the outer end of a
short crank 23, which said crank is carried or formed upon a rocking spindle 24
working in bearings carried from the handle bar 25 of the machine. This rocking
spindle 24 is made tubular in order to reduce weight. The other end of this
spindle is continued and bent to follow the direction of the handle bar, so that its
extremity 26 which forms its handle, lies at a convenient distance below the handle
of the machine handle bar, that is such brake handle 26 lies at or nearly at right
angles to the rocking spindle 24. The bearings 27 and 28 for the rocking spindle
are made by means of strip metal bent around the handle bar, and further bent into
an extra loop or eye form which latter forms the bearing, such loops being securely
clamped to the bar, Figs. 6, 7, 8 and 9 show how this may be done. By this means
a powerful leverage is obtained upon the vertical rod 18 &c., while the various
parts are easily attachable and detachable, and yet simple in their construction.

page_text: Of course this invention could be readily made to operate upon the back or
driven wheel, and suitably connected to the operating lever on the handle bar, or
other convenient part.
Having now particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. In brake mechanism for cycles the combination with a moveable vertical
rod 18, operated by hand lever, of two hinged arms such as 15, 15, all constructed
and operating substantially as set forth and shown in Figs. 1, 3, 4, 10 and 11.
2. În brake mechanism for cycles the use and adaptation therewith of a rocking
spindle 24 and crank part 23 and handle 26, constructed and operating substantially
as set forth and shown in Figs. 1, 2, 5, 6, 7, 8 and 9.
Dated this 3rd day of October 1896.
CHARLES T. POWELL,
Applicants' Agent.