Improvements in Bogie Trucks and Underframes for Railway Carriages and other Vehicles.
Year: 1892

page_text: Date of Application, 26th Feb., 1892
Complete Specification Left, 25th Nov., 1892-Accepted, 14th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Bogie Trucks and Underframes for Railway
Carriages and other Vehicles.
I, SAMSON Fox, of The Leeds Forge, New Wortley, Leeds, in the County of
York, Engineer and Ironmaster, do hereby declare the nature of this invention to
be as follows:-
This invention has reference to constructions of bogie trucks whereby suspension
links or bolts and connections such as usually employed in supporting the lower
transverse spring beam (sometimes called a swing bar) as also in some cases the
spring beam or swing bar itself can be dispensed with, likewise to constructions
whereby when springs acting vertically (whether they be coiled cylindrical or of
other shape) are employed either as bearing springs or as auxiliary supporting
springs the bogie trucks or underframes can be adjusted (by raising or lowering)
when desirable for any reason, such for examples as the settling down of the springs
or wear of wheel tyres or axle brasses.
In some cases in a bogie truck having bottom supports for the bolster bearing
springs, a beam of any suitable form and material is arranged to be capable of easy
lateral motion; its ends being, for this purpose, supported on rollers either fixed or
free, or in ball bearings adapted to run on projections or on attachments secured to
convenient portions of the bogie truck frame.
According to another arrangement the lateral motion of the beam is provided
for by adapting its ends to slide on the attachments, dispensing with rollers or
ball bearings.
In another arrangement the springs are supported on a suitable attachment to
the bogie frame, and are allowed to angle or rock on shafts or pins, or on curved
surfaces, so as not to unduly impede the lateral motion of the upper transverse
spring bearer, sometimes called a pivot bar. This portion of the invention may be
carried out in various ways, and lateral motion may also be provided for, either
separately or in conjunction with the above methods, by allowing elliptical bearing
springs a movement at their ends over each other, after connecting the ends of
each spring with links and pins.
In a bogie truck or vehicle underframe wherein there is provision for the
adjustment of vertical bearing or auxiliary springs, a cross head of a suitable form
arranged to bear on the top of the spring and has holes formed in it to receive a
centre spindle if desired and two or more suspending bolts, the ends of the latter
are passed through the frame itself or through suitable attachments to it in such a
manner as to allow nuts to pass over the ends of the bolts, the arrangement being
such that by actuating the said nuts the frame can be raised or lowered at pleasure.
According to another arrangement this action is reversed and by means of set
screws and suitable projectious, or by attachments to the frame, the said screws
are caused to bear on the cross head; by actuating them in the usual manner the
frame can be raised or lowered at pleasure. This part of the invention may be
carried out in various ways.
Din ofth day of February 1800
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, Loudon, W.C., Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Bogie Trucks and Underframes for Railway
Carriages and other Vehicles.
I, SAMSON FOX, of The Leeds Forge, New Wortley, Leeds, in the County of
York, Engineer and Ironmaster, 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 has reference to constructions of bogie trucks whereby suspension
links or bolts and connections such as are usually employed in supporting the lower
transverse spring beam (sometimes called a swing bar), as also in some cases the
spring beam or swing bar itself, can be dispensed with; likewise to constructions
whereby when springs acting vertically (whether they be coiled cylindrical or of
other shape) are employed either as bearing springs or as auxiliary supporting
springs, the bogie frames or vehicle underframes can be vertically adjusted when
desirable for any reason, such for examples as to compensate for the settling down
of the springs or wear of wheel tyres or axle brasses.
.
In the accompanying drawings,
Figs. 2 and 3 are respectively a side elevation, a part central transverse
section, and a part plan of a bogie truck constructed according to this invention, a
part of the underframe of a vehicle supported thereby, being shown in dotted lines
in Figs. 1 and 2.
The bogie frame comprises two stamped or pressed side plates 1 connected by
transverse members 2, 2. 3 is the bolster to which the underframe 4 of the vehicle
is pivoted by the centre pin or bolt 5. 6, 6 are the bolster bearing springs, shown
as laminated elliptical metal springs, of which there are in this example two pairs
at each side of the bolster. 7 is the lower transverse spring beam. This beam,
which can be of any suitable form and material, is arranged to be capable of easy
lateral motion, its ends being for this purpose arranged to work on bearers that
may be in the form of rollers, balls or slides carried directly or indirectly by
projections, attachments or brackets (hereinafter called sole plates) secured to or
carried by the frame plates of the bogie. In the example shown in Figs. 1, 2 and 3
each end of the spring beam is supported by a roller 8 carried by a trough shaped
sole plate 9 secured to the inner side of the corresponding side frame 1.
To obviate all liability of the bolster bearing springs to. become displaced
from between the bolster 3 and spring beam 7, the strap 10 of each spring is made
in one with or secured to a plate 11 that is firmly bolted to, the bolster or spring
beam, as the case may be, by studs or bolts and nuts 12. Also to enable the ends
of the bolster bearing springs 6 of each pair to roll or move relatively to each
other in a lateral direction without undue displacement, the adjacent ends of each
pair of springs are connected by links 13 and pins 14.
\.....
Figs. 4, 5 and 6 are similar views to Figs. 1 2 and 3 respectively, illustrating a
modified construction in which the spring beam is dispensed with, the bolster
bearing springs 6 being supported by sole plates carried by the bogie frame and
in relation to which the lower spring of each pair can angle or rock so as not to
unduly impede the lateral motion of the bolster 3 to which the upper spring of each
pair is bolted.
This mode of mounting the springs can be carried out in various ways. In the
construction now being described, each sole plate 9 is in the form of an inverted
dished plate fixed to the corresponding side plate 1 of the bogie frame and the top
of which is formed with a recess 15 having a concave bearing surface to receive
the correspondingly formed adjacent portion of the strap 10 of each of the lower
adjacent bearing springs 6.
Fig. 7 is a similar view to Fig. 5 illustrating a modified arrangement according
to which the strap 10 of each of the lowermost springs 6 is formed with a lug or

page_text: extension 10 by which it is journalled upon a pin 16 carried by a bearing, 16*
secured to the sole plate 9 and upon which the springs can angle or rock for the
purpose mentioned.
Figs. 8, 9 and 10 are also similar views to Figs. 1 2 and 3 respectively illustrating
a further modified construction.
In this arrangement the bolster bearing springs 6 are in the form of coiled metal
springs arranged in two groups, one at each side of the bogie. Each group which
may conveniently consist of three springs held in place between two plates 10",
rests upon a metal plate 17 formed with a concave portion 17" carried by a corre-
spondingly formed portion 9" of the sole plate 9 so as to allow the said plate 17 and
springs to angle or rock for the purpose mentioned. Or the plate 10 may for a
like purpose be journalled upon a pin or bolt 16 as shown in Fig. 11, this pin or
bolt being carried by a bearing 16 supported by the sole plate 9 as in the arrange-
ment shown in Fig. 7. The coiled springs 6 are or may be prevented from becoming
displaced, by cores 10b 10b which project into the ends of the springs and are
fixed to the plates 10" by bolts and nuts as shown.
It will thus be seen that in each arrangement the sole plates 9 serve to carry the
bolster and bolster bearing springs, thus dispensing with the suspension links or
bolts and connections heretofore usually employed for this purpose.
In each arrangement the bolster 3 is provided at each end with a pressed metal
bearing piece 24 upon which a bent metal bearing piece 25 fixed to the under-
frame 4 slides.
To enable bogie trucks or vehicle underframes to be adjusted vertically a cross
head of suitable form is arranged to bear on the top of the bearing or auxiliary
spring carried by each axle box and between each cross head and the bogie
frame are interposed suitable means such as adjusting screws for varying in a
vertical direction the position of the bogie frame relatively to the cross head.
This part of the invention can be carried out in various ways.
In the arrangement shown in side elevation and plan at the right hand side of
Figs. 1 and 3 respectively, 18 is a cross head arranged to bear upon the top of the
coiled bearing or auxiliary spring 19 the lower end of which rests upon the top of
the axle box 20. 21 are suspension bolts that pass through the cross head from
which they are suspended, and through the lower inwardly bent flanges 1 of the
corresponding side frame 1. Each bolt is provided with a plate 22 upon which the
side frame directly bears, and with nuts 23. With this construction it will be seen
that by adjusting the nuts on the suspension bolts, the bogie frame can be raised or
lowered at pleasure.
A somewhat similar arrangement is shown in Figs. 8, 9, and 10 but in this case
there are three bearing or auxiliary springs 19 above each axle box, and the
suspension bolts 21 are arranged outside the bogie frame and pass through lugs or
extensions 24 of plates 25* that are secured to the side plates I.
Fig. 12 is a side elevation illustrating a modified construction according to which
the bogie frame or vehicle underframe is supported by screws 21ª each of which is
secured to the upper part of the corresponding side plate 1 of the frame and is
provided with nuts 23 that rest upon the cross head 18, the arrangement being
such that by adjusting the nuts the bogie frame or vehicle underframe can be
raised or lowered at will.
Fig. 13 is a side elevation illustrating an arrangement similar to that shown in
Fig. 12 but in which there. are two screws 21 to each crosshead 18 which is
clamped between a pair of the adjusting nuts 23 upon each bolt.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A. bogie truck wherein the bolster and its bearing springs are supported by
sole plates carried by the bogie frame so as to thereby dispense with the usual
suspension links and spring beam substantially as herein described.

page_text: 2. A bogie truck wherein the bolster and its bearing springs are supported by
a laterally movable support or supports such as rollers, balls or slides carried by
sole plates secured to the bogie frame substantially as herein described.
3. A bogie truck wherein the bolster, is supported by bearing springs arranged.
to angle or rock upon curved surfaces or upon bolts or pins formed upon or
carried by sole plates secured to the bogie frame substantially as herein described
for the purpose specified.
4. A. bogie truck of the kind referred to in Claim 1 in which the bolster is
carried by laminated metal bearing springs arranged in pairs and having their
adjacent ends jointed together by links substantially as herein described for the
purpose specified.
5. The combination with a bogie truck frame or vehicle underframe and
auxiliary bearing springs arranged to rest upon the axle boxes of the truck or
vehicle, of cross heads arranged each to bear on the top of one or more of the
said springs, and adjusting mechanism arranged between each of the said cross
heads and the said frame so as to support the frame and permit of its being
readily raised and lowered substantially as herein described for the purpose
specified.
6. Bogie trucks constructed with bolsters, bearing springs and sole plates
arranged and operating substantially as hereinbefore described with reference
respectively to and shown in Figs. 12 and 3; in Figs. 4, 5 and 6; in Fig. 7; in
Figs. 8, 9 and 10; and in Fig. 11 of the drawings annexed.
7. Bogie trucks or vehicle underframes supported from the axle boxes by
auxiliary bearing springs cross heads and raising and lowering mechanism con-
structed and arranged substantially as herein before described with reference
respectively to and shown in Figs. 1 and 3; in Figs. 8, 9 and 10; in Fig. 12; and
in Fig. 13 of the drawings annexed.
Dated this 25th day of November 1892.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.