IMPROVEMENTS IN CAR AXLE BOXES AND ATTACHMENTS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, WILLIAM SEBASTIAN GRAFF BAKER a Citizen of the United States, residing
in the City of Baltimore and State of Maryland, U.S.A. Engineer do hereby declare
the nature of my Invention for "IMPROVEMENTS IN CAR AXLE BOXES AND
ATTACHMENTS and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
"
My Invention relates to the general class of car axle boxes described in a
Complete Specification lodged by me with an application for Patent No 1913 and
the object of my Invention is to adapt in an efficient manner the car axle boxes of
the general character shown in that Specification to the trucks of steam cars as
now in general use and to improve the general construction.
In the accompanying Drawings Figure 1 is an end view partly in section;
Figure 2 a vertical section on the line 2, 2, of Figure 1; Figure 3 a horizontal
section on the line 3, 3, of Figure 1; Figure 4 a detail view of the supporting block
or step; and Figure 5 is a longitudinal section with some of the parts removed.
The general construction of the axle box A the saddle or bearing. B, the
suspension link E, the wheel hub F, and the spring actuated washer G interposed
between the wheel hub and the car axle box is substantially the same as described
in the above mentioned Specification and needs no description.
The depending pedestal H between the legs or jaws of which the axle box A
plays, is rigidly bolted to the framing of the car and is stayed by suitable braces.
The link E suspended from the top of the axle box sustains the supporting fraine
or step I which is provided with a suitable seat for the link on its under face and
is slotted or notched at each end for the reception of the upright sides of the link.
This step or soat is illustrated in detail in Figures 2 and 4 from which it will be.
perceived that guard ridges or projections i are formed on its under face along the
sides of the link seat so as to prevent the link being displaced. Upright lugs are
formed on the upper side of the step I near each corner at the sides of the slots in
the ends of the step and are preferably curved as shown. The spring frame fits
down over these lugs as illustrated in Figures 1 and 3 so that lateral displacement
of the step or spring frame relatively to each other is prevented. The inner walls
of the legs of the pedestals are formed with vertical recesses preferably
rectangular in cross section for the reception of the legs of an inverted U shaped
spring frame K which straddles the axle box and suspending link and rests upon

page_text: the ends of the supporting step I which also fits into the vertical recosses h. It
will be perceived that as the supporting step fits in the recesses in the pedestal
jaws and the link is held in place on top of the axle box, the axle box is held
against any horizontal turning motion. The spring frame K is formed on its upper
face with a seat or socket % for the reception of the end of the spring equalising
and sustaining beam L the lugs of the pedestal being slotted at ¹ to accommodato
the beam. The opposite end of the beam L is supported in the same way upon
another axle box and the car body is mounted upon springs S in the usual way.
A brace rod extends from the pedestal of one axle box to the other. Under this
construction the pivot of the suspension link E has its bearing on the under face of
tho step I and the car axle box can move laterally so as to give ample play to
prevent jerks or jars in passing curves the vertical movement of the block I and
the spring frame K within the pedestal accommodating this action.
Under the organization described and shown it is obvious that the weight of the
car body may be applied on a spring interposed between the body and the upper
face of the spring frame K within the legs of the pedestal.
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. The combination of a pedestal an axle box a straddling spring frame
placed between the legs of the pedostal a suspension link upon which the spring
frame rests a supporting step or seat sustained by said link and means for applying
the weight of the car body at the top of the spring frame.
Second. The combination of a pedestal the jaws of which are provided with
vertical recesses on their inner faces a straddling U shaped spring frame which
fits and moves vertically in said recesses, the axle box, a link suspended there-
from a supporting step which is sustained by the link and receives the weight
or thrust of the spring framo and means for applying the weight of the car body
on the spring frame.
Third The combination of a pedestal having vertical recesses on the inner faces
of its depending jaws a straddling U shaped spring frame which, fits and moves
vertically in said recess, the axle box, a link suspended therefrom, and a supporting
step which moves vertically in the recess in the pedestal jaws and is supported
by the suspending link to sustain the weight of the spring frame.
Fourth. The combination of a pedestal, an axle box, a straddling U shaped
spring frame which fits in the vertical recesses in the pedestal jaws, a suspending
link and a supporting step having a link seat on its under face and slotted ends for
the reception of the link.
Fifth. The combination of a pedestal, an axle box, a spring frame, a suspending
link and a supporting step so organised as to hold the axle box against horizontal
turning motion.
Sixth. The combination of a pedestal, an axle box, the axle so mounted therein
as to be held firmly against endwise motion, a suspending link, a spring frame
supported by the link, and means for holding the axle box against horizontal
turning motion.
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