IMPROVEMENTS IN CAR AXLE BOXES
Year: 1883

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex for an
Invention of IMPROVEMENTS IN CAR AXLE BOXES communicated to him from
abroad by James Augustus Hamilton of New York America
COMPLETE SPECIFICATION filed by the said Herbert John Haddan at the
Office of the Commissionera of Patents on the 12th June 1883.
HERBERT JOHN HADDAN, of Kensington, Middlesex, IMPROVEMENTS IN CAR
AXLE BOXES communicated to me from abroad by James Augustus Hamilton of
New York America
This invention relates to the construction of dust shields for car axle boxes;
also to the arrangement of springs for resisting the longitudinal thrust of the axles
and to the construction and arrangement of oil receptacles for lubricating the
journals as hereinafter fully described and as illustrated in the accompanying
drawing, in which
Figure 1 is a vertical longitudinal section showing the parts in position within
the box.
Fig 2, is a vertical cross section on the line Z Z fig 1.
Fig 3, shows the dust shield detached partly in side view and partly in section.
Figure 4 is a vertical section thereof.
Figure 5 is a longitudinal section of an axle box showing a modification.
Figure 6 is a transverse section of the same.
Similar letters indicate corresponding parts.
The letter A designates the body of an axle box and B the journal of a car axle,
entering the box through the usual opening C, in the rear end thereof.
Said opening C is closed, to prevent the entrance of dust & to the axle box, by
a shield D, which slides into a recess E at the rear end of the axle box and
surrounds the axle at that place the shield being put in place prior to the intro-
duction of the axle. This dust shield is composed of a diaphragm F of cloth or
other flexible material and of a rigid frame G supporting the diaphragm the latter
being attached to the frame in such a manner, that it is expansible and thus adapta
AJ...מו

page_text: itself to the motions of the axle box. In the diaphragm F is an opening H to
receive the axle and at a distance from the edge of this opening the diaphragm is
provided with a rigid ring I so that such edge takes the form of a flange u,
projecting inward from the ring. Said flauge u, thus is the part of the diaphragm
which is in contact with the axle, and due to its flexible nature the flange readily
adjusts itself to the diameter of the axle, thus always preserving a tight joint
therewith. The material composing the diaphragm, is doubled and the ring I is
attached thereto between its two layers by lines of stitching t on opposite sides of
the ring, whereby the ring is securely held in place and moreover is concealed or
protected. On the ring I is an inwardly projecting flange J, of felt or other similar
material which is formed by bending a strip of the desired material upon itself
around the ring and which is substantially flush with the edge of the journal
opening H, it being interposed, like the ring between the layers of the diaphragm
so that by this flange said edge of the journal opening is reinforced and obtains a
superior body or fullness tending to improve its effect.
The frame G of the diaphragm is divided centrally and in a vertical plane into
two parts or sections G G which are connected together by telescopic tubes K,
one at the top and one at the bottom of the frame, so that the frame sections are
movable towards and away from each other and permit the adjustment of the
frame, in width, to the recess E of the axle box.
In order to render said frame G self-adjusting a spring N is interposed between
the ends of the frame sections, in both tubes K, this spring thus acting on both
sections with a tendency to force the same away from each other.
For the purpose of resisting the longitudinal thrust of the car axle, in the
motions of the axle box I use in lieu of the usual end flange a spring O which is
arranged in the box in the proper manner to act on the end of the axle journal.
Said spring O, bears on a washer P which in turn bears on the journal at the
proper point, and to support as well as protect the spring it is enclosed in a
casing which is attached to the cap Q of the journal, it being in this example
made in one piece therewith. This casing is open at the inner end, where it faces
the journal, and is provided at that place, with a recess 8, adapted to receive the
washer P, it being closed at the outer end. In the centre of the spring O, which is
in this example a spiral, is situated a screw bolt R, the head of which is sunken
into the face of the washer P and which extends through the closed end of the
casing Q, at the free end, where it is provided with a nut R", so that by properly
adjusting this nut the tension of the spring can be increased or diminished. When
it is desired to remove the spring and its concomitants from the axle box, the
nut R is tightened to draw the washer into the recess 8 and out of contact with
the journal, whilst when the parts have been replaced in the box the nut is loosened
to allow the washer to resume a normal position as shown in fig 1, and in any
motions of the box which may then take place, the washer plays in and outward in
the recess.
If desired the spring O may be duplicated and in that case the washer
is common to both springs, (see fig 6).
The bottom A' of the axle box is detachable and supports an oil receptacle S,
fitting into the box, such receptacle S and the detachable bottom being integral or
in one piece. In the top of the oil receptacle S are a series of holes into which are
fitted tubes T resting in said top by means of flanges on their upper ends and
containing wicks U for conveying the oil from the oil receptacle to the journal.
Said wicks U are sustained in a working position by means of spiral springs U¹,
one to each wick, which surround the wicks and rest on flanges T' projecting
inwardly on the lower ends of the wick tubes. By the arrangement of the wick
springs U on the flanges T', the wicks are left free below the lower ends of the
wick tubes which latter terminate above the bottom, of the oil receptacle, and the
proper absorption of the oil by the wicks, is insured.
For the purpose of securing the detachable bottom A¹ of the axle box I make
use of screw bolts V which extend through spiral springs W arranged in vertical
passages X in the side walls of the box, and which rest on the springs by means of

page_text: ir heads V' whilst they extend through said bottom at the free ends, where they
provided with nuts V. These nuts V are fitted to recesses Y which are
med on the bottom of the box, in this example by parallel ribs cast to said
tom and when it is desired to tighten the nuts the bolts V are drawn downward
inst the action of the springs W to bring the nuts out of the recesses, whilst
en the nuts have been set and the bolts are released the nuts re-enter the
esses and are firmly held therein by the action of the springs so that they are
liable to work loose.
In some cases the spring casing Q may be omitted and the spring O arranged
ween the end of the journal and the front side of the box, with or without a
port and in that event a wedge 01 (fig 5) may be arranged between the spring
I said side of the box for regulating the tension of the spring.
CLAIMS
A dust shield for car axle boxes composed of the flexible and expansible
diaphragm having a journal opening and the rigid ring attached to the
diaphragm at a distance from the edge of the journal opening to form a flange
capable of adjusting itself to the axle in combination with the diaphragm
supporting frame adapted to slide into a recess in the rear end of the axle box
substantially as and for the purpose described.
A dust shield for car axle boxes composed of the flexible and expansible
diaphragm doubled and provided with a journal opening, and the rigid ring
attached to the diaphragm between its two layers and at a distance from the
edge of the journal opening by lines of stitching on opposite sides of the ring,
in combination with the diaphragm supporting frame, substantially as and for
the purpose described.
A dust shield for car axle boxes composed of the flexible and expansible
diaphragm doubled and provided with a journal opening and the rigid ring
attached to the diaphragm between its layers and at a distance from the edge
of the journal opening, when such ring is provided with an inwardly projecting
flange of felt or other similar material flush with the edge of the journal
opening, to reinforce such edge, in combination with the diaphragm supporting
frame, substantially as and for the purpose described.
The combination with the flexible and expansible diaphragm having a journal
opening, of the diaphragm supporting frame divided vertically into two
sections which are connected together by telescopic tubes, to render the frame
adjustable in width substantially as described.
The combination with the flexible and expansible diaphragm having a journal
opening of the diaphragm supporting frame divided vertically into two
sections the telescopic tubes connecting the frame sections with each other and
the spiral springs arranged in said tubes to act on both frame-sections
substantially as and for the purpose described.
The combination with a car axle box and a car axle journal of the spring
arranged in the box to act on the end of the axle for resisting the longitudinal
thrust of the latter substantially as described.
The combination with a car axle box and a car axle, of the washer bearing on
the end of the axle and the spring arranged in the box to bear on the washer
substantially as and for the purpose described.
The combination with a car axle box and a car axle journal, of the washer
bearing on the end of the axle the spring bearing on the washer, the spring
casing attached to the cap of the journal and provided at its open end with a
recess to receive the washer, and the screw bolt having its head sunken into
the face of the washer and extending through the closed end of the spring
casing where it is provided with a nut, substantially as and for the purpose
described.

page_text: The combination with a car axle box of a detachable bottom to such box and
the oil receptacle supported in position within the box by the detachable
bottom substantially as and for the purpose described.
The combination with a car axle box of the detachable bottom to such box
formed integral with an oil receptacle fitting into the box, substantially as
and for the purpose described.
The combination with a car axle box of the oil receptacle supported on the
bottom of the box, the wick tubes resting in the top of the oil receptacle, the
wicks serving to convey the oil from the oil receptacle to the journal and the
wick springs fitted into the wick tubes substantially as and for the purpose
described.
The combination with a car axle box of the oil receptacle supported on the
bottom of the box, the wick holder resting in the open top of the oil receptacle
and having a series of wick tubes each provided with an inwardly projecting
flange at the lower end, and the wick springs arranged in the wick tubes to
rest on their said flanges substantially as and for the purpose described.
The combination with a car axle box having its side walls provided with
vertical passages, of the detachable bottom to such box, the spiral springs
arranged in said passages and the screw bolts extending downward through
said springs with their heads resting thereon and through the bottom of the
box when they are provided with nuts which are fitted to recesses on the box
bottom substantially as and for the purpose described.
n witness whereof I the said Herbert John Haddan have hereunto set my
d and seal this 12th day of June A.D. 1883.
甘 T HADDANI Gal