Improvements in Trucks or Bogies for Railway and other Vehicles.
Year: 1890

page_text: Date of Application, 12th Aug., 1890-Accepted, 20th Sept., 1890
COMPLETE SPECIFICATION.
Improvements in Trucks or Bogies for Railway and other Vehicles.
We THOMAS HENRY BOWLES, of New Orleans in the County of Orleans and State
of Louisiana, United States of America, Capitalist, and GOTLIEB ALFRED AENOBBACHER,
of 18 Gilmer Street in the City of Atlanta and County of Fulton and State of Georgia,
United States of America, Car Builder, do hereby declare the nature of our said
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 supplying a car truck which shall adapt itself to curves
without unnecessary friction that will be automatic and easy of action and that will be
efficient in all its other functions, as well as so improving the axle box as to render it
practically dust proof and prevent as far as practicable the dripping therefrom of the
lubricant, the details of all of which will be hereinafter fully described and claimed.
In the accompanying drawings, Figure 1 is a vertical section through the centre of
the truck, showing however the grease box only partly in section, and the bridges on
which said box rests entire in their operative parts.
Figure 2 is a longitudinal central section of the axle-box showing the butting pieco
entire also the journal bearing of the axle and also showing the grease box cover
attached, which was removed in the former described figure.
Figure 3 is a view in elevation of the packing slide which form a bar to the entrance
of the dust around the axle at its entrance to the axle-box, said device being also
shown sectionally in position in Figure 2.
Figure 4 is a horizontal cross-section of the butting piece showing its contour in
cross section.
In these figures like reference marks indicate corresponding parts in the several
views.
A is the axle which may be of any form of construction having however its ends
rounded preferably, for contact with the abutting piece B which slides, to insert and
remove it, in grooves in the sides of the casing of the axle- or grease-box. This
abutting piece is for the purpose of making the point of contact between the end of
the axle and suitable devices for preventing end-motion, as small as possible, the
construction shown being the contact of two ovals, one on the piece B and the other
on the rounded end of the axle A, which contact is theoretically a point but in
practice it would amount to a pivot bearing in its functions without the disadvantages
of such construction.
Cis the journal brass, which has a hemispherical bearing against the top of the
casing D of the axle box which has a hemispherical indentation, or one of sufficient
depth to provide a suitable bearing for a projection c on the brass (). The construction
shown consists of a projection depending from the inner side of the upper part of the
casing D and having in its end the said indentation, said projection being lettered d.
The journal brass is left perfectly loose within the casing D in order that it may have
play on its contacting point in all directions to adapt itself to all the motions of the
car or unevenness of the tracks, which cause the wear to be uniform all over the surface
contacting with the journal Learing of the axle and necessarily lengthens the life of
the brass, which is an advantage of great importance, brasses of that construction in
actual service having been shown to run from twice to three times as long as those of
other constructions, the most approved kind in use at the present time. The cover d'
of the grease-box D is hung on the lip projecting upwardly from the top of the
casing D and extends downwardly having on its bottom a flange which
corresponds with the flange on the casing, and to secure the said cover in place
a bolt dis passed through the holes through both of said flanges and If
desired the joints around the edges of this cover d¹ may be packed with a washer
of leather to exclude dust &c. In the inner end of the casing D is a hole for the

page_text: introduction of the axle and into which, were it not stopped, would enter the dust and
other foreign substance injurious to the life of the journal and the brass bearing. The
annular space left after the introduction of the axle is stopped by the gates E fitting
into the recesses e in the casing D. The upper half e fitting therein and being held
down on the journal by its gravity while the lower piece el is held pressed against the
journal by the spring e which may be in the form shown or in the form of a coil
spring properly recessed into the casing to protect it from dust. These parts e¹ and e
are preferably made of fibre but obviously other substance may be used.
This casing D and its contents as above described are slung in a housing constructed
substantially as follows:-Two bridges F and G having straight portions along which
the casing D may slide laterally, ond motion, of said casing being prevented by the
flange on said casing, are provided being secured together and held apart by the
pieces K substantially as shown. This housing is so set in the pedestal as to have
motion vertically therein and having practically no motion in any other direction
relative to the pedestal. The vertical motion is limited and made elastic by springs L
of suitable stiffness and in the number desired, preferably encircling guide pins M.
In case these springs by reason of great superincumbent weight prove insufficent for
sudden jars, such as would be by the side lash of the car in going around a sharp
curve, buffers of rubber or other suitable material may also be interposed between the
bridge F and a suitable upper bearing. The lateral motion of the casing D and
consequently the journal bearing of the axles is governed by springs N bearing
against the said casing at one end and the pieces K at the other end, lugs n being
supplied if desired for holding said springs in their position. In the construction
shown that is, having these lugs n, said lugs are also made to answer the purpose of
sockets for holding the buffers O of rubber or other material, said buffers being for
the purpose of softening the contact of the said casing on a motion-limiting stop, the
buffers themselves in the present instance being said stop.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. In a device of the class described, the combination of the casing D having
bearings d, the journal bearing brass C having projections c seated in said bearing
points d, the axle A, the butting rings B, the bridge consisting of the_longitudinal
supports F and G connected at their ends by the transverse supports K, carried on
said casing F and moyable longitudinally on the same, the buffers O and springs N
carried on the lugs n between the ends of the bridge and the casing D for confining
the movement of the bridge on said casing, substantially as and for the purpose
set forth.
C
2nd. In a device of the described class, consisting of the casing D carried on the
axle A and having bearing points d, the journal bearing brass having projections
seated on said bearing points d the butting ring B carried in grooves in the sides of
the casing, the slides e and e" sliding in suitable recesses in the casing, spring el for
retaining the lower of said slides in place, the bridge consisting of the longitudinal
supports F and G connected at their ends by the vertical transverse pieces K carried
on said casing and having longitudinal play on the same, the springs N and the
buffers O carried on the lugs n between the casing and the bridge for confining the
play of the same on the casing, the springs L surrounding said pins, substantially as
and for the purpose set forth."
Doted this hth day of Tul 1800
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicants.