Improvements in the Arrangement of Bearing Springs on Locomotives, Tenders, and other Vehicles.
Year: 1895

page_text: Improvements in the Arrangement of Bearing Springs on
Locomotives, Tenders, and other Vehicles.
I, ILLIUS AUGUSTUS TIMMIS of No. 2 Great George Street, Westminster S.W.
Civil Engineer, do hereby declare the nature of this invention to be as follows:-
The objects of my invention are to arrange the springs which carry a locomotive,
tender or other vehicle (hereinafter called a vehicle) so that vibratory movements
and side oscillations, during running, are minimised, and by consequence the running
is made easier and the wear and tear are reduced.
It is well known that shocks causing vibration are caused by travelling on
railways over fish-plate joints and crossings and also by going over bad roads.
Oscillations are caused by wind pressure and travelling round curves.
In my Patent 153400 I describe a system of bearing springs for bogie trucks.
This system consists in the use of relief springs in combination with, and which are
shorter or are fitted with less initial compression-than the carrying springs. The
use of this system takes up and eliminates vibration and oscillation.
In this invention I adopt the above named system of relief and carrying springs
to support locomotives, tenders and other vehicles on their axles.
To effect the above objects I fit a long plate flanged or strengthened or a
channel or box (hereinafter called a channel) from side to side of the vehicle and
I support it on or from the journals of the axle. On this I place any suitable
number of coiled steel springs which are kept in place by pins or snugs or cups (any
or either). Part of these springs are almost strong enough to support the full load
on the axle. The remaining part of the springs are shorter or are fitted so that
when the full load is on the axle they have less initial compression. These latter
act as relief springs to the longer or carrying springs.
The part of the vehicle carried by the axle rests on another inverted chanuel
and this rests on and is carried by the springs and it is fitted in suitable guides.
Another arrangement for fitting this system of springs is to fit a channel on each
side of the vehicle lougitudinally over or under one, two, or more axles, and
supported by the axle boxes.or from the axle. These channels support a system of
carrying and relief springs which support the load the axles have to carry in
a manner similar to that described above.
Dated this 14th den of Desember 1805

page_text: Improvements in the Arrangement of Bearing Springs on
Locomotives, Tenders, and other Vehicles.
I, ILLIUS AUGUSTUS TIMMIS, of No. 2 Great George Street, Westminster S. W.,
Civil Engineer, 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 objects of my invention are to arrange the springs which carry a locomotive,
tender, or other vehicle, (hereinafter called a vehicle) so that vibratory movements
and side oscillations, during running, are minimised and by consequence the running
is made easier and the wear and tear are reduced.
It is well known that shocks causing vibration are caused by travelling on
railways over fish-plate joints and crossings and also by going over bad roads.
Oscillations are caused by wind pressure and travelling round curves.
.
In my Patent 15340/90 I describe a system of bearing springs for bogie trucks.
This system consists in the use of relief springs in combination with, and which are
shorter or are fitted with less initial compression-than the carrying springs.
The use of this system takes up and eliminates vibration and oscillation.
In this invention I adopt the above nained system of relief and carrying springs
to support locomotives, tenders and other vehicles on their axles.
To effect the above objects I fit a long plate flanged or strengthened or a channel
or box (hereinafter called a channel) from side to side of the vehicle and I support.
it on or from the journals of the axle. On this I place any suitable number of
coiled steel springs which are kept in place by pins or snugs or cups (any or either).
Part of these springs are almost strong enough to support the full load on the axle.
The remaining part of the springs are shorter or are fitted so that when the full
load is on the axle they have less initial compression. These latter act as relief
springs to the longer or carrying springs.
The part of the vehicle carried by the axle rests on another inverted channel and
this rests on and is carried by the springs and is fitted in suitable guides.
Another arrangement for fitting this system of springs is to fit a channel on each
side of the vehicle longitudinally over or under one, two, or more axles, and
supported by the axle boxes. These channels support a system of carrying and
relief springs which support the load the axles have to carry in a manner similar to
that described above.
The accompanying drawing shows one mode of carrying out my invention.
Fig. 1 is a cross section through the centre line X. Y. Z. of Fig. 2.
Fig. 2 is a cross section through the framing of an engine showing the way the
system of carrying and relief springs is fitted over the axle boxes.
Fig. 3 is a plan showing the stretchers and springs contained in a supporting
casting or trough..
In these figures A. A. are the axle boxes which support a casting or trough C
through the medium of the short spindles B. D may be the foot plate of the
engine if the axle is a trailing one, otherwise D may be of any convenient form
such as a channel iron or a casting. E. E. E. E. and E' E' E¹
are snugs riveted
to the foot plate D and keeping the springs S. S. S. S. and S¹ S¹ S¹ in position.
F. F. are two stretchers riveted or bolted to the engine frames, the trough C being
free to move up and down in the space enclosed by the said stretchers and frames.
S. S. S. S. are the carrying springs which support most of the superincumbent
load. S¹ S S¹ are the relief springs which have but a small initial compression.
For the sake of simplicity only two springs S. S. and one spring S₁ are shown in
full lines in Fig. 2. The remainder are shown only in outline. The number

page_text: of springs may be any, but care must be taken, as shown in Fig. 3, that they are
arranged symmetrically on each side of the centre of the engine. When the total
number of springs is uneven the relief springs may be the alternate ones, or they
may be in the centre as shown in Figs. 2 and 3.
But when the number of springs is even the relief ones may be in the centre.
The arrangement shown in Figs. 2 and 3 is eminently suitable for engine or
tender bogies, whether they are arranged longitudinally or transversely.
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:
The arrangement of coiled springs for supporting locomotives, so that a part
thereof carry the whole or nearly the whole of the load and the remainder act as
relief springs.
I. A. TIMMIS.