Improvements in the Manufacture or Construction of Equalizing Beams or Bars for Rolling Stock.
Year: 1891

page_text: Date of Application (in United Kingdom), 20th Jan., 1891
Complete Specification Left, 10th Oct., 1891-Accepted, 14th Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture or Construction of Equalizing
Beams or Bars for Rolling Stock.
I, SAMSON Fox, of Leeds Forge, Leeds in the County of York, Engineer
and Iron Master, do hereby declare the nature of this invention to be as
follows:-
:―
In the construction of trucks for rolling stock, equalizing beams or bars for
equalizing the strain upon two wheels from a central support are frequently
employed. They cousist generally of wrought iron bars dropping down at the
centre between the axles and adapted to carry at that portion the weight of
the springs, while the upper ends pass over the axle boxes and are supported by
them.
My invention consists in an equalizing beam or bar of pressed steel, having
generally a channel shape and preferably provided with a strengthening wearing
bead' on its' under surface.
My invention will be readily understood from the accompanying drawings in
which
Fig. 1 represents a side elevation of the completed beam ;
Fig. 2 a cross section through Fig. 1 on the line xx; and
Fig. 3 a view of the rolled plate before pressing into the beam.
In forming my beam I take a flat plate A preferably of steel and preferably
having beads B B Figure 3 which is then (having been heated) shaped between
male and female dies into the form shewn in Fig. 2 and simultaneously bent into
the shape shewn in Fig. 1.
As will be observed this completed beam is provided with an increased wearing
surface at its lower portion as shewn at B.
Its box shape at the upper portion as at C provides a suitable resting surface for
the spring supports.
The beam itself is rigid and lighter than if made of solid wrought iron for the
ame strength.
Dated this 20th day of January 1891.
COMPLETE SPECIFICATION.
Improvements in the Manufacture or Construction of Equalizing
Beams or Bars for Rolling Stock.
I, SAMSON Fox, of Leeds Forge, Leeds in the County of York, Engineer and
Iron Master, 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:-
In the construction of trucks for rolling stock, equalizing beams or bars for

page_text: equalizing the strain upon two wheels from a central support are frequently
employed. They consist generally of wrought iron bars dropping down at the
centre between the axles and adapted to carry at that portion the weight of
the springs, while the upper ends pass over the axle boxes and are supported by
them.
My invention consists in an equalizing beam or bar of pressed steel, having
generally a channel shape and preferably provided with a strengthening wearing
bead on its under surface.
My invention will be readily understood from the drawings left with my
Provisional Specification in which,
Fig. 1 represents a side elevation of the completed beam;"
Fig. 2 a cross section to a larger scale through Fig. 1 on the line x ; and
Fig. 3 a view of the rolled plate before pressing into the beam.
In forming my beam I take a flat plate A preferably of steel and preferably
having beads B B at two opposite sides, (Fig. 3), which is then (having been
heated) shaped between male and female dies into the form shewn in Fig. 2 and
simultaneously bent into the shape shewn in Fig. 1.
As will be observed this completed beam is provided with an increased wearing
surface at its lower portion as shewn at B.
Its box shape at the upper portion as at C provides a suitable resting surface for
the spring supports.
The beam itself is rigid and lighter than if made of solid wrought iron for the
same strength.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The hereinabove described improved manufacture of equalizing beams or bars
for rolling stock of metal plate pressed to a channel form in cross section and
simultaneously bent at the ends in an upward and outward direction substantially
as described and shown whether with or without beads such as B.
Bated this Xth day of October 1891
Dated this 8th day of Uctober 1891
W. Lloyd Wise,
SAMSON FOX.
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant..