Parts of Brake Ironwork for Wheeled Vehicles.
Year: 1886

page_text: Parts of Brake Ironwork for Wheeled Vehicles.
26
I, JOHN GEORGE HARRISON of Noel Road Edgbaston near Birmingham in the
County of Warwick, Manager of Works, do hereby declare the nature of said
invention for IMPROVEMENTS IN THE MANUFACTURE OR PRODUCTION OF CERTAIN
PARTS OF BRAKE IRONWORK FOR WHEELED VEHICLES," 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 reference to improvements upon Letters Patent applied for by
me, and bearing date the 17th day of March 1885 N° 3424 for the manufacture or
production of brake iron work for wheeled vehicles; and the object of my said present
invention, is the same, as that of the herein before cited Letters Patent; that is, the
formation or production of the parts of brake ironwork without welds or shuts by
stamping or by partly stainping and partly drawing the said parts from the solid, or
from a single piece of metal, thereby minimising the risk of fracture, as the parts
are produced without shuts or welds:
The slotted centre arrangement, the main body prop, the wheel end of the main
lever and the inner end of the said main lever with the socket between the two
last named in which the shank or spindle of the main prop takes, are made in one
piece. The T mitred wheel flap which is shut upon one end of the main lever, is
inade in one piece.
The crank centre arrangement (offside) the main prop, the wheel end of the main
prop, the inner end of the main lever, and the T wheel flap are all made the same
way as described.
The crank centre piece which is shut upon the inner end of the main lever, is
made in one piece with the bosses or bossed eyes, (for carrying the short end of the
crank centre piece) and is produced from a single piece of metal in exactly the
same way as the parts before referred to.
The near side of the crank centre arrangement is stamped from the solid and
made in one piece.
The rolling bar arrangement which consists of a spindle of two diameters, with a
collar or enlarged neck between them; is provided on one side with an extended
part called a spur, which is formed out of the solid of the metal-The end of
reduced diameter is welded to a plain bar, while the end of larger diameter is shut
upon the end of the L wheel flap-So that the rolling bar with its perpendicular

page_text: lever or spur and the L wheel flap which is shut upon its end, is stamped out of
the solid and made in one piece.
The handle piece with its bossed eye, is also made in one piece; so is the handle
arch piece with its bossed eye for carrying the attachment bracket and spindle and
this is also stamped and made out of one piece of metal.
The whole of the parts herein described are produced solid or in one piece from
bars or lengths of metal.
Brake ironwork parts as herein before described are fashioned or produced from
bars or lengths of metal having bulbous or ball like protuberances at certain parts,
which are displaced and shaped into bosses, extending arms cross, or T heads or
ends and other branching forms and also other forms that may be required.
The process or processes of balling up, or accumulating metal at determinate
parts of the said bars or lengths, which are to be transformed or made into brake
ironwork, is produced by forcing or displacing a portion of the metal at one part of
a bar or length, and accumulating the said displaced metal, and another part as
hereinafter described-This displacement is produced by stamping between half
dies of the counterpart of the shape of the blank required to be produced. Or the
thickening of the metal may be produced by other means, such as, longitudinal.
displacement so as to bulge and accumulate metal at varying points.
I will now proceed to describe with reference to the accompanying drawings, the
manner in which the same is to be performed.
Figure 1 represents a side elevation, figure 2 a section, and figure 3 a plan of the
offside slotted centre arrangement fashioned or produced from the blank figure 4
which has a bulbous or ball like accumulation of metal at one end, which said
accumulated metal is spread out, or fashioned into the expanded or widened out
eye part by stamping, as best seen in figure 3; while the other part is shaped into
the shank.
Figure 5 shows an edge view of the bulbous or ball ended blank figure 4.
Figure 6 represents inside elevation and figure 7 in front elevation the near side
of the slotted centre arrangement, which is produced or made from a bulbous or
ball ended blank figure 8, of which figure 9 is a side elevation-The accumulation
of metal at the swelled part, is formed into the expanded slotted end, while the
other part forms the shank; the whole being fashioned or shaped between dies,
which are a counterpart of the object to be formed. The said near side as last
described is shut or welded upon the offside lever.
The eyes or piercings in the expanded parts may either be slotted or have holes
of any desired shape.
Figure 10 represents in side elevation, the T or main body prop, produced from
a bulbous or ball ended blank figure 11, of which figure 12 is a section taken on
the dotted lines-This bulbous or spherical ended part is branched out or diverted
into the T or cross top; that is, the accumulated metal at the end of the stem is
forced outwards, in a opposite direction and at right angles to the said stem, by
stamping or fashioning the metal between half dies of the counterpart of the main
body prop to be formed-The formation of the T top or cross end is produced by
displacing the metal by a tool directed in a line with the axis of the stem, which
compels the metal to flow or branch outwards in opposite directions, and fill up the
hollows of the dies wherein it is fashioned-The fibre of the metal being disposed
in directions most suitable for the tensile strength of the object thus formed.
Figure 13 shows the wheel end of the main lever produced from the bulbous
ended blank figure 14 of which the blank figure 15 is a side elevation; and
figure 16 a section.
The process of spreading out, or diverting the accumulated metal, at the bulbous
end of the stem, is conducted-in-the-same manner, as previously described with
respect to 'figures 10 and 11, other than that the metal-is-branched out into
the T top, between differently shaped dies, so as to obtain the mitred T end and
broad cross piece disposed in the plane of the stem-Figure 13ª is a side view of
figure 13..

page_text: Figure 17 represents in front elevation, figure 18 in side elevation, the main
lever arrangement which is produced by stamping from the blank figure 19,
which said blank is provided about its middle with a bulbous enlargement which
is created for the formation of the bossed eye of the said main lever.
The blank figure 19 is operated upon by stamping tools, and fashioned into the
finished main lever figure 17, with a bossed eye at or about its middle; the hole of
which is made to receive the shank of the main body prop figure 10.
The right hand end of the main lever is shut upon the end of the mitred T or
wheel flap figure 13, and the left hand end is shut or welded upon the inner end of
the cranked centre arrangement of the main lever figure 20. This said figure 20
which is called the long end of the cranked centre, (and which is shut upon the
near side main lever as stated) is produced from the blank figure 21, provided with
accumulated metal at two points, to form the respective bosses. This blank is
operated upon by stamping tools, and shaped into the cranked centre arrangement
figure 20 as before referred to. Figure 20ª is a side elevation of figure 20.
Figure 22 shows the short end of the cranked centre action, fashioned and
shaped from the bulbous ended blank figure 23. This last named part figure 22
is shut upon the end of the offside main lever.
Figure 24 represents in front elevation, and figure 25 in side elevation, the
L shaped wheel flap arrangement which is shut upon the right hand end of the
main lever, for another kind of wheeled vehicle to which figure 13 is applicable.
The said figure 24 is produced from the bulbous ended blank figure 26. The
accumulated metal at the bulbous end is first diverted on to one side as indicated
in the dotted lines; and then branched outwards into the L or angle piece or wheel
end as best seen in figure 24. Thus the accumulated metal in the bulbous end, is
forced into the interstices of a mould or half dies by the process of stamping, the
grain of the iron following the direction of the branched part.
Figure 27 is the rolling bar arrangement consisting essentially of a spindle of
two diameters, and having a collar or enlargement at the junction of the parts of
the said dissimilar diameters. The end of smaller diameter is provided with a
spur marked a which stands perpendicular to the axis of the bar. This rolling
bar is produced from a blank or rod of iron figure 28, having bulbous metal
accumulations at suitable points.
The bulbous part b is first diverted on to the one side as represented in figure 29,
and marked 6*. This diverted part is then extended into the branched spur a by
stamping, effected by forcing the metal into the cavities or hollows of the half dies
employed.
The collar part c which is formed from the enlargement c³ is fashioned at the
same time as the spur is made.
Figure 30 represents in front elevation, figure 31 in side elevation, and figure 32
in section, a handle piece made according to my invention, stamped from the
bulbous ended blank figure 33 of which figure 34 is a side elevation. Thus the
bossed eye is formed from the accumulated bulbous end formed by stamping,
while the shank is made from the stem or plain part.
Figure 35 is a side elevation, figure 36 a section, and figure 37 a plan of an
attachment bracket stamped from a blank figure 38, with a bulbous part situated
at or about its middle. The eye of this attachment bracket fits upon the collar of
the handle arch piece figure 39, of which figure 40 is a plan.
The said handle arch piece is fashioned from a bulbous ended blank figure 41,
in the same manner as already described with respect to the main prop figure 10.
Figure 42 represents in plan, and figure 43 in side elevation, the bearing bracket
for roller bar, made according to my invention, and formed by stamping from a
similarly shaped bulbous ended blank as shown at figure 4.
The stamping of the parts of brake ironwork hereinbefore described, is effected
between half dies or shaping tools, which are of the counter-part of the work to be
fashioned or formed.

page_text: I wish it to be understood that brake ironwork herein before described and
illustrated, are respectively stamped and produced solid, or from one piece of metal
thereby minimising the possibility of the parts becoming fractured or broken, as is
common with brake ironwork where the parts are made up of portions shut or
welded together.
The process of balling up, or producing the bulbous protuberances at the ends or
at other parts of the bars, rods or pieces of metal, is effected by displacing the
metal from one part of the bar or rod and accumulating it at another part; or in
other words, by the process of shaping the metal between half dies of the counter-
part of the blank to be formed; thus, when one two or more accumulations of
metal is required, a bar or piece of metal is taken of less diameter than the ball to
be formed, and when operated upon by means of dies worked in a stamp; the
metal from one part is thus accumulated at another part, which accumulated metal
is formed or fashioned into bosses, bossed eyes, L and T tops and ends, and into
other branched forms and ends as may be required as herein before described.
The balling up or accumulation of metal at varying points as may be desired
may be produced by compressing or upsetting processes, other than by means of
stamping expedients.
Although I have described that the balling process is by preference produced by
stamping, yet the bulbous metal accumulation may be produced or formed between
rolls having corresponding cavities or channels, to the bulbous parts and form of
blank required.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. Producing bulbous or ball like protuberances at the ends, or at other
parts of the blanks of brake ironwork, by displacing the metal from one part of the
said blank, and accumulating it at another part, by the process of stamping or
fashioning between half dies. The displacement and accumulation of metal at
parts of the blank, being conducted and carried out in the ways, substantially as
described and illustrated.
Secondly. Making or forming the parts of brake ironwork solid or in one piece
of metal (without shuts or welds) from bars, rods or other forms of metal having
bulbous or ball like metal accumulations by the process of stamping or fashioning
the said bulbous bars, rods or other forms between half round dies or shaping
tools; thereby producing brake ironwork solid or in one piece, substantially as
described and illustrated in the several figures of the drawings.