Improvements in Dumping Waggons.
Year: 1893

page_text: Date of Application, 3rd Jan., 1893-Accepted, 18th Feb., 1893
COMPLETE SPECIFICATION.
[Communicated from abroad by WILLIAM ARTHUR THACHER, residing at the
"Astor House," corner of Broadway and Barclay Street, in the City of New
York, in the County of New York, United States of America, Engineer.]
Improvements in Dumping Waggons.
I, HENRY HARRIS LAKE, of the firm of Haseitine Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 invention relates to dumping cars or waggons and comprises a car body
having sections capable of being tilted to dump their load and compressed air
mechanism under the control of the engineer of the train for successfully releasing
and moving said sections on their pivotal bearings, all as hereinafter more
particularly described and pointed out in the claims.
The car herein described belongs to the class of cars used for conveying coal
upon elevated tracks at receiving stations and dumping the same between the ties,
and while said car possesses features of novelty, as hereinafter explained, the
compressed air apparatus forming a part of the invention is not limited to the
same, since it is also applicable to cars in which the compartment sections are
mounted to dump their load to the sides of the track.
The compressed air mechanism embraces a main or dumping cylinder by which
the tilting sections of the car may be moved on their pivotal bearings, a latch
cylinder co-operating through its piston and rod with the latch which locks the
tilting car-section in its horizontal position or releases the same, and a release
cylinder containing a sliding release valve for relieving back pressure and
permitting a rapid reciprocation of the piston in the dumping cylinder, thus
securing a quick action in the car body, as hereinafter more fully described.
In the accompanying drawings.
Figure 1 is a side elevation, partly broken away, of a car constructed in
accordance with and embodying the invention, the position of the ends of the
car body while dumping being indicated by dotted lines;
Figure 2 is a side elevation on an enlarged scale showing the middle portions of
the car with the connections between the receiving compartments for dumping
the latter and holding the doors while the facing ends of the compartments leave
them;
Figure 3 is a plan view, partly broken away, of the said car embodying the
invention;
Figure 4 is a detached plan view on an enlarged scale and partly in section,
of one of the dumping cylinders with connecting latch and release cylinders, the
dumping cylinder being turned on its side for clearness of illustration;
Figure 5 is a diagramatic view showing the main air pipes and connections with
the dumping, latch and release cylinders for the entire car, the dumping cylinders
being turned from a vertical to a horizontal position for clearness of illustration.
A designates the truck frame, and B, B, the sections or receiving compartments
forming the body of the car, and which sections are each mounted on a transverse
rod C permitting them to be tilted downward toward each other, as shown by
dotted lines, for the purpose of dumping their contents between the ties of the
track. When in their upward or horizontal position the sections B, B, will be
sustained at their outer ends on the truck frame and in that position held by
suitable latches hereinafter described. The facing portions of the sections B, B,
are of novel form, each being composed, as shown, of the inwardly and upwardly
and outwardly inclined rigid end pieces D, D and upwardly and outwardly inclined
door E, the latter not forming a rigid part of the sections B, B, but being

page_text: suspended in guides F, F, so that as the sections B, B, are tilted downward
they will pass from the doors, thus opering the space between the end pieces D, D,
and permitting the load to escape. As will be observed from the dotted lines,
the upward and outward inclination of the end pieces D, D. and doors E E,
permit the sections B, B, to tilt downward toward each other close to the
track, and, when in their horizontal position, to be in near relation to each
other at their lower inner portions, preserving the greatest amount of carrying
capacity in the car. The inward inclination of the end pieces D, D, afford a
triangular space to receive the dumping cylinders and serve as guides to direct the
entire load from the sections B, B, to points within the line of the usual track
rails. The inner edges of the end pieces D, D, also afford suitable means for
supporting the guides F, F, for the doors E, which are suspended from the
arms GG, by the links H, I, pivotally secured at each end and adapted to sustain
and retain the doors EE while the sections B B draw downward from them and
then elevate in position to have their ends closed by said doors. The doors E, E,
remain stationary, with the exception of yielding through their links H, I,
sufficiently to allow the free tilting movement of the sections B B. The arms GG,
are secured upon the transverse beams J (see Figure 3) supported by the diverging
truss beams KK, (see Figures 1 and 2) at opposite sides of the car.
The lower ends of the truss beams K, K, are riveted to the longitudinal side
truck beams L, and produce a durable structure, adding strength to the car and
forming substantial supports for the beams J and mechanism connected with the
compressed air apparatus. Below the upper portion of the truss beams K, K is
riveted the plate M, and between this plate and the side beam L is the turn-buckle
rod N, which increases the strength of the structure and may be shortened if
necessary at any time to take up or prevent any downward bowing of the middle
portion of the truck frame. The lower end of the rod N is directly secured to a
bracket O which is riveted to the beam L. Between the truss beams K, K, and
the beam are rigidly secured the braces P, P, which extend downward and
inward, as shown in Figure 2, on lines best adapted to afford the greatest amount
of strength.
Between the truss beams K, K, and side beam L are also rigidly secured the
plates Q(see Figure 1) which furnish bearings for the transverse rods C on which
the sections B, B, are respectively mounted.
At opposite sides of the middle portion of the car and within the triangular
spaces formed by the end pieces D, D, are the dumping cylinders R, S, which are
supported partly by brackets T secured to the truck frame and partly by the
vertical guide rods V extending upward from the head of the cylinders and
secured by nuts at their upper ends. Within the dumping cylinders R, S, are
pistons W, whose normal position is at the upper end of the cylinders and whose
rods X extend vertically upward and carry the cross heads Y on the pivots Z to
which are secured the upper converging ends of the links a, a, the lower ends of
the latter being pivotally secured to the bracket arms b, b, affixed to the car-
sections B, B.
It will thus appear obvious that upon the depression of the pistons W the
piston rods X will pull downward on the links a, a, and (the latch mechanism
having been freed) tilt the car-sectious B B, to the position indicated by dotted
lines, carrying the said sections from the doors E E, and permitting the load to
discharge. Upon the return or upward movement of the pistons W. their rods X
will elevate the links a, a, and through them draw the car-sections B B, upward to
their former horizontal position and permit the doors E, E, to close the ends
thereof. The dumping cylinders RS, operate in unison and each is provided with
inlets at each end so that the pistons W may be positively moved in either
direction under the full control of the engineer. The cross heads Y carry at their
ends small rollers d, which travel between the rods V and thus serve to guide the
piston rods X at their upper ends and render more effective the operation of tilting
the car sections B B.

page_text: The sections B, B, when in their horizontal position will be secured at their
outer ends by pivoted latches e engaging a hook or projection extending
downward from said sections (see Figure 1) and these latches it is proposed to
operate by the action of compressed air, so as to free the hooked projections f
preparatory to the dumping of the load.
The parts of the invention herein before described are not limited to the special
arrangement of the pipes for conveying the air to the dumping cylinders and to
the latch and hence in the drawings two arrangements of air pipes are shown, one
being illustrated in Figures 1, 2 and 3, and the other in Figures 4 and 5, and the
latter arrangement being the one which I prefer and which forms a part of the
invention sought to be protected by this application.
Referring to Figures 1, 2 and 3, it will be observed that three line pipes g, h, i, are
employed, the pipes g, being respectively connected with the opposite ends of
the dumping cylinders RS, by branch connections jk, containing valves m, which
when closed will cut off the air entirely from the dumping cylinders and permit the
car-sections B, B, to remain at rest, while the air passes on to the adjoining cars
for the purpose of dumping them. When the air is allowed to enter the upper
end of the dumping cylinders R, S, it will depress the pistons therein and cause
the rods X, cross heads Y and links a, a, to move downward to their lower position,
shown by dotted lines, thus tilting the sections B, B, from their doors E, E, and
dumping the load, and when the air is cut off from the upper end of the dumping
cylinders and turned into the lower end thereof, the rods X, cross-heads Y and
links a, a, will be moved upward and carry the sections B, B, back to their
horizontal position.
The engineer may at any time turn the air into both ends of the dumping
cylinders at one time and thus hold the sections B, B, in any desired position, or
by quickly alternating the pressure on opposite sides of the pistons in the dumping
cylinders cause the sections B, B, to rock on their bearings for the purpose of
aiding the discharge of the load. The pipe line i leads to latch cylinders n, whose
piston rods connect with the lower ends of the pivoted latches e, and pull said
latches free of the hook f when the air is admitted to the cylinders n, thus freeing
the sections B, B, and permitting them to be tilted by the dumping cylinders R, S.
Upon the air being cut off from the latch cylinders n, springs will retract the
latches e to their former position and move the pistons to the inner ends of the
latch cylinders n. The latches are spring latches which are opened by
the compressed air to free the car sections and then closed or re-set by the
springs r. The pipe will have a valve s by which the air may be cut off from the
car when desired.
The compressed air mechanism above referred to by reference letters, is
effective for the purposes stated, but the compressed air inechanism which I more
especially desire to secure in this application is illustrated in Figures 4 and 5, in
which but two main pipe lines A'B' are employed and lead respectively to the
upper and lower ends of the dumping cylinders R, S. Interposed in the main
lines A B by means of suitable branch pipes are the latch cylinder C₁ and
release cylinder D' for each dumping cylinder. The release cylinder D' is
connected at one end with the main line pipe A¹ and at the other end with the
main line pipe B' suitable valves E¹ being provided to entirely cut off the release
cylinder when desired.
The release cylinder D' is also connected at one end by a branch F' with one end
of the latch cylinder C', and by a branch pipe G' the other end of said release
cylinder D' is connected with the end of the dumping cylinder S, while between the
branches FG, the release cylinder is provided with an exhaust or discharge pipe
or port H. The latch cylinder C₁ in addition to being in communication with the
release cylinder D' through the pipe F¹ is also connected with one end of the
cylinder S by a pipe I', and said cylinder C¹ is also provided with the exhaust or
discharge port J and with the piston and rod K', L'.
Within the release cylinder D' is provided the sliding valve M' having the

page_text: heads NO which, as shown in Figure 4, are cushioned at the ends of the
cylinder D' by the coiled springs Pl. The valve M' is free to be moved in either
direction by the air entering the cylinder D' from the pipes A¹ B¹ and in Figure 5
it is shown in the position it will be given by the air entering the cylinder D from
the pipe A which position causes the air from said pipe A' to first pass through the
branch pipe F¹ into the latch cylinder C₁ driving its piston K' and rod L' inward
and freeing the latch Q' and thence through the branch pipe I' into one end of the
cylinder S, with the result of moving the piston W and tilting the car, while at the
same time the air in the other end of the cylinder S is permitted to freely exhaust
or be released through the pipe G¹ and port H¹. Thus the one release valve M
serves to both direct the air to the proper end of the cylinder S and permit the air
at the other end thereof to freely exhaust.
Upon the air being admitted to the release cylinder D₁ through the pipe B', the
valve M will be moved in the opposite direction, at which time (the spring R'
having drawn the piston K outward and re-set the latch (2) the air will pass
through the branch pipe G¹ into the lower end of the cylinder S, while at the same
time the air at the other end of said cylinder may freely escape through the pipe I¹
latch cylinder C¹ and port J¹ the result being that the car-sections will be very
comfortably returned to their former horizontal position. The release valve M¹
acts quickly under the full pressure of the compressed air, and hence the engineer
may rapidly alternate the air from the pipe A¹ to the pipe B₁ and vice versa, the
result being that the full pressure of the air may be utilized to effect a quick
movement of the pistons in the dumping cylinders either for dumping the car-
sections B, B, or returning them to their horizontal position, or for shaking or
tocking said sections on their bearings to more effectually or rapidly discharge their
load. It will be observed also that the latch cylinder C is connected in the main
pipe line and hence it will operate to free the spring latch Q before the car
sections B, B, tilt downward.
I have described above the operation of the release and latch cylinders connected
with the cylinder S, but as illustrated, the cylinder R will also be provided with
the latch and release cylinders and connecting pipes corresponding with those more
particularly referred to above, and this duplicate set of devices for the cylinder R
having a corresponding and simultaneous operation with those connected with the
cylinder S and being designated by like reference letters will be fully understood
without a more minute explanation. In Figure 4 the latch and release cylinders are
shown in section and on an enlarged scale so as to more fully indicate their details
of construction, but owing to want of space their position and plan of general
arrangement are not illustrated so fully as in Figure 5. The release cylinder D' is
of particular importance since it ensures the quick release of the air from the
actuating or dumping cylinders and renders the use of the cars more effectual.'
1
The
It will be apparent from the foregoing description that the car sections B, B,
may be tilted to dump their load and then returned to position by the positive
action of the compressed air, and that said sections may be shaken or rocked on
their bearings by the compressed air to more effectually discharge their load.
cylinders R, S, have a simultaneous operation, and each of the piston rods X is,
through the links a, a, connected with both of the car sections B, B, thus ensuring
an even and simultaneous action on the said sections.
I do not confine the invention to the precise details of construction shown and
described, but I may modify these at will within' the scope of the invention.
Having now particularly described and. ascertained the nature of the said inven-
tion and in what manner the same is to be performed as communicated to me by my
foreign correspondent, I declare.that what I claim is :-
:-
1. In a car the tilting sections B, B, mounted on transverse rods and having the
inwardly and upwardly and outwardly inclined facing ends D, D, combined with
the guides F, the independent doors E and the links suspending said doors,
substantially as and for the purposes set forth.

page_text: 2. In a car, the combination of the tilting sections mounted on transverse rods, the
longitudinal beams L, the truss beams K, K secured to said beams L and the brace
beams P intermediate of the beams K, L, substantially as set forth.
3. In a car, the combination of the tilting sections mounted on transverse rods, the
longitudinal beams L, the truss beams K, K, secured to said beams L, the brace
beams P intermediate of the beams K, L, the plates M secured to the angle of the
truss beams, and the rods N intermediate of said plates and the beams L,
substantially as set forth.
4. In a car, the tilting sections B, B, combined with the suspended doors E, and
compressed air mechanism connected with said sections for tilting the same,
substantially as set forth.
5. In a car, the tilting sections B, the doors E, and the links suspending said
doors, combined with the dumping cylinders having pistons and rods, and link
connections intermediate said rods and said sections for imparting movements from
the former to the latter; substantially as set forth.
6. In a car, the tilting sections B, B, combined with the dumping cylinder having
the piston and rod, and the links connecting said rod with both of said sections ;
substantially as set forth.
7. In a car, the tilting sections B, B, having doors at their facing ends, combined
with the cylinders R, S, at opposite sides of the car, the piston rods, and the
links a, a connecting said rods with both said sections at opposite sides of the car;
substantially as set forth.
8. In a car, the tilting sections B, B, having doors at their facing ends, combined
with the cylinders R, S, at opposite sides of the car, the piston rods X therefor, the
cross heads Y carried by said rods, the vertical guide rods for said cross heads,
and the links intermediate said piston rods and said sections; substantially as set
forth.
9. In a car, the tilting section and the independent suspended doors therefor,
combined with latches for locking said sections in their horizontal position,
compressed air mechanism for freeing said latches, and compressed air mechanism
for tilting said sections, substantially as set forth.
10. In combination with the tilting body of a dumping car, the dumping
cylinder having a piston and rod for tilting said body, inlets at the opposite ends of
said cylinder, and a release valve for releasing the air from one side of the piston
when air is admitted to the other side thereof substantially as set forth.
11. In combination with the tilting body of a car, the dumping cylinder
having a piston and rod for tilting said body, inlets at the opposite ends of said
cylinder, and a double acting release valve intermediate said inlets and ports
admitting the air to one side of the piston and releasing it from the other side
thereof; substantially as set forth.
12. In combination with the tilting body of a car the dumping cylinder having a
piston and rod for tilting said body, inlets at the opposite ends of said cylinder, the
main pipe lines connected with said inlets, the latch cylinder connected in the main
pipe line supply air to tilt the car body, and the latch connected with the piston rod
of said latch cylinder; substantially as set forth.
13. In combination with the tilting body of a car, the dumping cylinder having a
piston and rod for tilting said body, inlets at the opposite ends of said cylinder, the
main pipes lines feeding said inlets, the release cylinder intermediate said inlets and
having an exhaust port, and the release valve therein exposed to the force of the
air and admitting air to one inlet while exhausting it from the other inlet ;
substantially as set forth.
14. In combination with the tilting body of a car, the dumping cylinder having a
piston and rod for tilting said body, inlets at opposite ends of said cylinder, and the
fatch and release valve cylinders intermediate said inlets, substantially as and for
the purposes set forth.
15. The main cylinder having a piston and rod, and inlets at each end of said
cylinders, combined with an automatic release valve intermediate said inlets and
•

page_text: admitting air to one inlet while releasing it from the other inlet; substantially as
set forth.
16. In combination with the tilting body of a car, the dumping cylinder having a
piston and rod for tilting said body, the release valve cylinder, the main pipe lines
leading to opposite ends of said cylinder, the latch cylinder, the pipe leading from 5
the release valve cylinder to the latch cylinder, and the pipes leading from the
latch and release valve cylinders to the opposite ends of the dumping cylinder;
substantially as set forth.
Dated this 2nd day of Tenu 1902
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.