IMPROVEMENTS IN RAILWAY DUMPING WAGONS
Year: 1881

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
"
& Co., Patent Agents, Southampton Buildings, London, for an Invention of
IMPROVEMENTS IN RAILWAY DUMPING WAGONS." A communication from
abroad by William H. Paige, of Springfield, Massachusetts, United States of
America, Car Builder.
COMPLETE SPECIFICATION filed by the said William Robert Lake at the
Office of the Commissioners of Patents on the 6th January 1881.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. " IMPROVEMENTS IN RAILWAY DUMPING
WAGONS." A communication from abroad by William H. Paige, of Springfield,
Massachusetts, United States of America, Car Builder.
This Invention relates to improvements in railway dumping wagons, and has
for its object to provide a wagon whose entire contents may be easily and quickly
dumped from either side by manipulating mechanism connected therewith, as
hereinafter described and illustrated in the accompanying Drawing, in which
Figure I. is a side view of a portion of a dumping wagon having my Invention
applied thereto, and
Figure II. is a plan of the same.
Figure III. is an end view of the said wagon.
Figure IV. is a vertical longitudinal section of the wagon showing the shipping.
lever, and rod which operate the side bearing, and the clutches which are connected
with the winding shaft, and also shewing the side bearing thrown up with the
forward clutch thrown out from the winding drum.
Figure V. is a vertical longitudinal section through the buffer socket.
:
Figure VI. is a vertical longitudinal section showing the clutch operating rod,
which also moves the side bearing, with the latter in its vertical position.
Figure VII. is a front view of the buffer socket, and
Figure VIII. is a front view of the braces, between which the buffer socket
revolves, and by which it is held in place..

page_text: A, A, represent the two side sills of the wagon, and C, C, two inside sills or
timbers, all extending in a direction lengthwise of the wagon. To these sills the
cross timbers and floor boards of the wagon are secured, and to the lower side of
the said wagon or beneath the floor are secured suitable bearings, in which are
arranged to revolve easily the shafts 14, one on each side, and extending lengthwise
of the wagon. On each of these shafts is a drum 8 arranged to revolve freely on
the same.
Two clutches, one of which, 6, is arranged on one side of the drum, and the
other, 7, on the other side of the said drum, are so keyed to the shaft as to revolve
with it, and to slide to and fro along the said shaft and engage with the drum by
teeth or projections on the clutch, and also on the sides of the drum, and cause the
latter to revolve according as one or the other clutch is brought up against the
drum.
A rod 2 is arranged to move longitudinally in suitable bearings near each shaft.
Upon this rod is a projection 5 to engage with and move the clutch 6 to and fro
along the shaft, and also a projection 9 to move the other clutch 7 along the shaft
in the same manner, and these clutches are sɔ adjusted with reference to the rod 2,
that when one clutch is in engagement with one end of the drum the other clutch
is moved away from the other end, say, from six to eight inches. The rod 2 at
the end of the wagon is connected with a pivoted lever 1. This rod 2 is also
connected by an arm 4 with a pin or arm on the side bearing D, which consists of
a heavy metallic piece suspended from a shaft or pivot secured to the bottom of
the wagon.
One of these bearings is arranged on each side of the wagon at each
end, the lower end of the said bearing resting on the truck beam, and being so
connected to the rod 2 that when the latter is moved forward to cause the clutch 6
to engage with the end of the drum 8, the side bearing is held in a horizontal
position, as shewn in dotted lines in Figure IV., but when the rod 2 is moved
back to cause the clutch 7 to engage with the other end of the drum, the side
bearing D is held in a vertical position, so that the weight of the wagon and its
contents will be supported on that side on the truck beam, as shewn in Figure VI.
The shaft 14 is provided at the end of the wagon with a toothed wheel 11
engaging with a worm or screw on the lower end of the vertical shaft 10, provided
with a winch or hand wheel at its top or upper end, so that by turning the said
hand wheel and shaft 10 the shaft 14 beneath the wagon will be revolved.
A dog 12 is pivoted to the lower side of the wagon, and is attached to a rod 15
extending along beneath the wagon at the side, which rod is so connected with
latches 16 (of which there may be two or more along the side of the wagon) that
when the lower end of the said dog is moved inward and upward the inner end of
the latch will be raised and its outer end depressed to permit the side wall of the
wagon, which is pivoted at a, to swing outward.
The wagon is pivoted at E to the truck or bogie at each end, so as to tilt to
either side, and a buffer socket 17 is secured at each end of the wagon to and
between the sills I. This buffer socket consists of an iron ring 17 having an
annular groove or channel around the outside, into which are fitted, so as to move
freely, the projections 18 of the braces 21, which are bolted one to each sill, at
each side of the socket 17, and a projection on the ring 17 strikes against one of
the projections 18, when the socket is turned in either direction to limit the rotary
movement of the buffer socket to, say, an arc of about thirty degrees.
The rod 2, the side bearing D, the connections and operating lever 1, the
shaft 14, the tripping dog 12, with the latches 16, and the operating rod 15, are all
duplicated, these parts being arranged on each side of the wagon so that the latter
may be dumped to either side.
To dump the wagon the operation is as follows, that is to say :-The lever 1 is
moved into the position shewn in Figure IV. on the side on which it is desired to
dump the wagon, thereby raising the side bearing D into a horizontal position and
moving the clutch 6 into engagement with the drum 8, and the lever 1 on the
opposite side of the wagon is moved just sufficiently to move the clutch away from

page_text: the drum on that side so that that drum will revolve freely and rapidly on the
shaft. The hand wheel on the shaft 10 on the side on which the wagon is to be
dumped is then turned, revolving the drum and winding up the rope or chain, and
thereby drawing down that side of the wagon (the end of the chain or rope being
made fast to the drum and extending down and around a pulley or roller in the
truck frame, thence outward along the truck frame and around another roller and
upward to the outer sill of the wagon, where it is made fast) and tilting the wagon
on its pivots at E. When this winding up of the chain or rope has proceeded to
such an extent as to throw the centre of gravity of the load beyond the pivot E
the lower side of the wagon will then drop by its own weight, the chain unwinding
rapidly from the opposite drum and the dropping side striking with a jar against
the end F of the truck beam or frame; the inside sill C also strikes against a
cushion or block 22 on the truck frame, just before the sill A strikes the end of the
truck beam at F; too great a jar or shock is thus prevented.
As the dropping side of the wagon descends the end of the dog 12 strikes
against a plate 13 on the truck frame, and the dog is thereby quickly thrown
inward and upward, tripping the latches 16, and the outward pressure of the load
or its own weight will swing the pivoted side of the wagon outward, and the whole
contents of the same will be dumped upon the ground or into any receptacle placed
to receive it.
It will be perceived that after the dumping mechanism of the wagon is adjusted
to a certain extent, the weight of the said wagon or its contents is used or utilized
to complete the dumping operation, which is accomplished with a jar, which will
effectually and completely empty the wagon, and this operation and its results
differ very essentially from those in which a wagon is gradually and slowly pulled
over, or tilted gradually through the whole movement, as the dumping is effected
in a much more efficient manner.
When the wagon is tilted back again by winding up the opposite chains, the
side of the said wagon swings in again by its own weight, and is locked by the
latches 16 automatically by the weight of the dog 12 in swinging down.
If one wagon is dumped and the next one to which it is coupled remains
stationary, the two buffer sockets 17 will partially rotate between the projections 18,
so that all strain on the coupling will be removed, and yet the socket cannot rotate
to such an extent as to permit the loss of the link pin, which secures the wagons
together.
It will be seen that as the side bearing D is pivoted at its upper end to the
bottom of the wagon when its lower end rests upon the truck frame, there will be
sufficient movement of the bearing on its pivot as the wagon is being moved upon
the track to allow of the differences of relative position between the wagon and
its trucks in rounding curves, and yet the load will be fully supported by the
bearings.
As the chains are kept wound up on the drums and the side bearings are
provided with this forward and back play there is little or no friction of the
bearings on the truck frame and the wagon is effectually prevented from being
accidentally dumped during transportation.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,
First. In a dumping wagon, the combination with each side bearing pivoted at
its upper end to the said wagon of the longitudinally moving rod 2, the pivoted
rod-operating lever 1, and the arm 4, connected at one end with the said rod and
at the other end with the said side bearing, whereby the latter is moved into and
out of the position in which it serves as a supporting connection between the
wagon and the truck, all substantially as above set forth and for the purposes
specified.
Second. In a dumping wagon, the combination with a winding drum arranged
to revolve upon a shaft of sliding clutches adapted to engage with the ends of the

page_text: said drum, the longitudinally moving rod provided with projections connected with
-the said clutches to move the latter into and out of engagement with the said
winding drum, and the pivoted lever connected to and operating the said rod, all
'substantially as herein described and for the purposes specified.
Third. In a dumping wagon, the combination of a winding drum arranged to
revolve upon a shaft, the sliding clutches adapted to engage with the said drum;
the longitudinally moving rod provided with projections connected with the said
clutches to move the latter into and out of engagement with the said drum, the
movable side-bearing arranged between the wagon and its truck-frame to partially
support the load, the arm connected at one end with the longitudinally moving rod
and at the other end with the side bearing, and the pivoted operating lever whereby
the side bearing is moved into and out of the position in which it serves as a
supporting connection between the wagon, and whereby the truck frame and the
clutches are also moved into and out of engagement with the winding drum by one
movement of the said operating lever, all substantially as herein described and for
the purposes specified.
Fourth. In a dumping wagon, the combination with the truck frame of the
tilting wagon, frame, one or more latches for holding the side of the wagon in
place, a latch-operating rod extending lengthwise of the wagon and connected with
the said latches, and a weighted swinging dog connected with the said latch-
operating rod, whereby the side of the wagon is automatically released by the
tilting of the latter, and is also automatically locked again by the righting of the
said wagon, all substantially as and for the purposes above set forth.
Fifth. In a dumping wagon, the combination of the tilting wagon frame, the
pivot E, the truck frame to which the wagon is pivoted and upon which it is
supported, and a block or cushion 22 secured to the truck frame between the
wheels to receive the blow of the dropping side of the wagon in dumping, all
substantially as above set forth and for the purpose specified.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Sixth day of January, in the year of our Lord One
thousand eight hundred and eighty one.