Improvements in Brake-holders for Velocipedes and in Attachments therefor.
Year: 1890

page_text: Date of Application, 18th Feb., 1890
Complete Specification Left, 18th Nov., 1890-Accepted, 18th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Brake-holders for Velocipedes and in Attachments
therefor.
We,
DANIEL BARTLEY BOSTEL of 18 and 19 Duke Street, Brighton in
the County of Sussex Sanitary Engineer and ERNEST ALFRED LOOSLEY of
42 Upper Russell Street Brighton aforesaid, Cycle Manufacturer, do hereby
declare the nature of our invention to be as follows:-
The object of our said invention is to provide a convenient form of brake holder
for velocipedes combined with effective means for attachment of the same to the
handle bar or other convenient portion of the machine.
We form a portion of a metallic clip of preferably semi-circular form to ride on
the handle bar and secured thereto as follows: the lower extremities of the clip are
thickened out to form bosses which are tapped to receive screws; the lower portion
of the clip consists of a bar of metal, the face of which is cut away at each end so
as to allow the centre portion to enter between the lower extremities of the semi-
circular or segmental clip before described. The extremities of the bar are drilled
to correspond with the tapping of the upper portion and screws are run through
these drill holes to engage with the tapped bosses, so that the bar when screwed up
against the handle bar may with the upper portion of the clip tightly embrace the
same.
The centre portion of this lower bar is cut away in the shape of a V so as to
more firmly grip the handle bar.
At a convenient point on the top or front portion of the clip, we form a grooved
circular chamber in which we place a coiled wire spring, one end of which is turned
up and the other down at opposite angles and fit into holes one at the bottom of the
chamber and the other in the crank lever hereafter described.
The metal left in the centre portion of the spring chamber and round which the
spring lies coiled is tapped to receive a pin on which is pivotted a crank lever, one
arm of which lever forms a rack engaging with a pin attached to the brake lever
and the other a thumb piece.
One end of the coiled spring being inserted in the hole on the under side of the
crank lever close to the pivot pin and the said pivot pin being screwed home the
spring keeps the racked end or arm of the crank lever normally engaged with
the pin on the brake lever and may be thrown out of gear by pressure on the
thumb piece.
Suitable stops prevent undue strain and the elasticity of the coiled spring tends
to keep the crank lever against the head of the pivot pin.
The upper part of the clip forming with the crank lever and spring the brake
holder may if desired be brazed or otherwise permanently fixed to the handle bar.
Dated this 18th day of February 1890.

page_text: COMPLETE SPECIFICATION.
Improvements in Brake-holders for Velocipedes and in Attachments
therefor.
We DANIEL BARTLEY BOSTEL, of 18 Duke Street, Brighton, Sanitary
Engineer, and ERNEST ALFRED LOOSLEY of 57 Upper Russel Street, Brighton,
both in the County of Sussex, Cycle Manufacturer, 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 :-
The object of our said invention is to provide a convenient form of brake holder
for velocipedes, combined with effective means for attachment of the same to the
handle bar or other convenient portion of the machine.
Referring to the accompanying drawings and to the figures and letters of
reference thereon marked,
Figure 1 shews a full sized view of our improved brake holder.
Figure 2 is a full sized view of the clip to attach to the brake lever.
Figure 3 shews the apparatus applied to the handle bar and brake lever.
Figure 4 is an enlarged section on line a-b of Figure 1.
We form a portion of a metallic clip A. of preferably semi-circular form to ride
on the handle bar and secured thereto as follows: the extremities of the clip are
thickened out to form bosses B B which are tapped to receive screws C C, the
other portion of the clip consists of a loose bar of metal D the face of which is cut
away at each end at E E so as to allow the centre or remaining portion F to enter
between the extremities B B of the semi-circular or segmental clip A before
described. The ends of the bar are drilled to correspond with the tappings of the
other portion and the screws C C are run through these holes to engage with the
tapped bosses so that the bar D when screwed up against the handle bar may with
the other portion of the clip tightly embrace the same.
The centre portion of the bar is cut away in the shape of a V so as to more firmly
grip the handle bar.
At a convenient point on the front portion of the clip we form a grooved circular
chamber H in which we place a coiled wire spring I one end of which is turned up
at I and the other down as at 12 and fit into holes one at the bottom of the chamber
and the other into the cranked lever K hereafter described.
The metal left in the centre portion of the spring chamber and round which the
spring lies coiled is tapped to receive a screwed pin J on which is pivotted a cranked
lever K one arm of which lever, K', forms a rack engaging with a pin L attached
to the brake lever and the other arm K2 is formed as a thumb piece.
One end of the coiled spring I being inserted in the hole on the underside of the
crank lever close to the pivot pin J and the said pivot pin being screwed home the
spring keeps the racked end or arm of the cranked lever normally engaged with
the pin L on the brake lever and may be thrown out of gear by pressure on the
thumb piece.
Figure 2 shews a form of clip capable of being readily attached to the brake
lever and to which clip is fixed or fitted the pin L but it will be understood that
any convenient clip may be used for this purpose.
Suitable stops prevent undue strain, and the elasticity of the coiled spring tends
to keep the cranked lever against the head of the pivot pin J.
The upper part of the clip forming with the crank lever and spring the brake
holder may
if desired be brazed or otherwise permanently fixed to the handle bar.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
First. The device or apparatus hereinbefore described and substantially as
illustrated by Figures 1 and 4 of the accompanying drawings for the purpose of

page_text: controlling the brake levers of velocipedes or other light vehicles or machinery to
which such device may be applicable.
"
Second. The method of attaching so called "brake holders to velocipedes or
other light vehicles or machinery to which such device may be applicable
substantially as hereinbefore described and as illustrated by the accompanying
drawings.
Third. The construction and arrangement of so called brake holders and attach-
ments substantially as hereinbefore described and as illustrated by the accompanying
drawings.
Dated this 18th day of November 1890.
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, London, W.C., Agents for the Applicants.