Improvements in the Manufacture of Wheel Brakes for Velocipedes.
Year: 1897

page_text: Date of Application, 14th Sept., 1897
Complete Sannifination I aft 12th
4000
4000
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Wheel Brakes for Velocipedes.
We PERCY WHEELDON, of 4, Norfolk Street, Moss Side, Works Manager, and
the PNEUMATIC BRAKE COMPANY LIMITED, of Cornbrook Road, Manufacturers,
both in Manchester, in the County of Lancaster, do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in the manufacture of the metal carriers
or attachments of the indiarubber brake shoes or blocks more particularly of fluid
pressure brakes, the objects being to simplify the construction and thereby to
reduce the cost of production of such brakes and facilitate their application to
machines without skilled labour.
The carrier consists generally of an oblong shell into which the india rubber
shoe or block is inserted, and secured in any suitable manner. Arms are fitted
to the shell formed with clips by which the brake is attached to the frame of the
machine. These arms have hitherto been made separately and attached by means
of screws or rivets to a stamped or cast metal shell.
In accordance with this invention the shell and arms are made in one piece
from a blank of sheet metal. The shell forming a rectangular open box, a blank
for producing the same is cut out, from a suitable piece of sheet metal having
the centre part of rectangular form and having an arm on each of the long sides
projecting at the required angle which in some cases is a right angle and in other
cases a greater or lesser angle. The rectangular part of the blank is then blocked
or stamped hollow or dished, this operation turning in the arms along with the
sides. In some cases the arms are used in this position, but generally the arms
would require to lie in an opposite direction. In this latter case the arms are
turned back to lie against the sides of the shell and in this position they may
have a rivet passed through them and the sides of the shell when the latter is
made of thinner sheet. The ends of the arms are sometimes formed suitable for
attachment to clips for gripping the tubes of the frame of the machine but generally
a half hoop or half clip is stamped at the end of each arm having two holes, to
which is bolted another half clip between which halves the tube is clamped. The
inside of the shell is suitably provided for the attachment of the india rubber
shoe or block and in the case of fluid pressure brakes a hole is pierced in the shell
to permit of the passage of the inflating tube.
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page_text: Improvements in the Manufacture of Wheel Brakes for Velocipedes.
We, PERCY WHEELDON, of 4, Norfolk Street, Moss Side, Works Manager, and
the PNEUMATIC BRAKE COMPANY LIMITED, of Cornbrook Road, Manufacturers,
both in Manchester, in the County of Lancashire, 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 the manufacture of the metal carriers
or attachments of the indiarubber brake shoes or blocks more particularly of fluid
pressure brakes, the objects of these improvements being to simplify the construc-
tion and thereby to reduce the cost of production of such brakes and facilitate
their application to machines without skilled labour.
The carrier consists generally of an oblong shell into which the india rubber
shoe or block is inserted, and secured in any suitable manner. Arms are fitted
to the shell formed with clips by which the brake is attached to the frame of the
machine. These arms have hitherto been made separately and attached by means
of screws or rivets to a stamped or cast metal shell.
In accordance with this invention the shell and arms are made in one piece
from a blank of sheet metal. The drawings attached hereunto illustrates the carry-
ing out of our invention. In the said drawings Figure 1 represents the form of
blank necessary for the manufacture of the pattern of brake we at present fre-
quently use. Figure 2 represents an end elevation of the blank after the first
operation of pressing. Figure 3 represents an end elevation of the finished article
and Figure 4 a side elevation of the same but partly in section. The shell a
Figures 2, 3 and 4 forms a rectangular open box, and has arms a¹, a2 by which
attachment is made to the machine. A blank for producing the shell and arms
is cut out from a suitable piece of sheet metal having the centre part of rectan-
gular form and having arms one on each of the long sides which arms project at
the required angle the latter in some cases being a right angle and in other cases
a greater or lesser angle. The rectangular part of the blank is then blocked, or
stamped hollow or dished, this operation turning in the arms a¹ a² and forming
a ring a³.
E
In some cases the arms are used in this position, but generally the arms would
require to lie in an opposite direction. In this latter case as illustrated in Figures 3
and 4 the arms are turned back to lie against the rim or sides of the shell and
in this position they sometimes have rivets a' passed through them and the sides
of the shell as when the latter is made of unusually thin sheet. The ends a³ of
the arms are sometimes formed suitable for attachment to clips for gripping the
tubes of the frame of the machine but generally a half hoop or half clip a is
stamped at the end of each arm having two holes a, as to which is bolted another
half clip 6 by screws passed through the holes a', a8 and through corresponding
holes in the half hoops between which halves the tube is clamped. The inside
of the shell is suitably provided for the attachment of the india rubber or block
and in the case of fluid pressure brakes a hole. c is pierced in the shell to permit
of the passage of the inflating tube. In order to attach the hollow inflatable shoe
or block of a fluid pressure brake we fix preferable by means of rivet a ring of
metal d of right angular section, inside the shell thus forming a hip which permits
the said block to be held therein dovetail fashion.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion in what manner the same is to be performed we declare that what we claim is:—
First. The method of forming attachments for carrying and supporting in
position flexible brake blocks or shoes in velocipedes, which consists in cutting a
suitably shaped blank of metal and pressing it so as to form a socket with arms
arranged in the position required, such arms being formed at their ends so as to
enable them to grip the framework of the machine by means of suitable clips
substantially as hereinbefore described and illustrated with reference to the several
figures of the drawings.
Second. The manufacture and use of attachments for carrying and supporting
the flexible brake blocks or shoes of velocipedes, in which each socket for carry-
ing and the arms thereof for supporting the flexible block in position are formed
in one piece from sheet metal by cutting, pressing and bending the same into the
desired form substantially as herein before described and illustrated and for the
purpose set forth.
R. J. URQUHART,
57, Barton Arcade, Manchester,
Harrington Chambers, 24, North John Street, Liverpool.
Consulting Engineer & Patent Agent.