Improvements in Dumping Cars or Tilting Wagons.
Year: 1889

page_text: Date of Application, 31st Dec., 1889
Complete Specification Left, 2nd Sept., 1890-Accepted, 4th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Dumping Cars or Tilting Wagons.
I, EDWARD FLEET ALFORD, of 1 Duchy Chambers, Manchester, in the County of
Lancaster, Agent, which invention has been communicated to me from abroad by
Alfred Seymour Fleet, of Fort Stevens, Oregon, United States of America, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
--
This invention relates to improvements in what are known as dumping cars
or tilting wagons which are usually mounted on rails and are employed for the
conveyance of stone and other heavy materials by contractors and others.
The novel features of the invention consist chiefly in an improved arrangement of
the dumping or tilting mechanism whereby the floor of the car or wagon returns to its
normal position after the load has been discharged..
According to this improved arrangement the floor of the car or wagon is hung on
pivots and to the floor is fixed a toothed quadrant into which gears a pinion.
There is a hand wheel at one end of the frame of the wagon and on the axis of
this handwheel is a worm gearing into a worm wheel fixed on the axis of the
aforesaid pinion.
When loaded the floor of the car or wagon is of course in a horizontal position but
when it is desired to tip or dump the load the floor is tilted to its extreme angle by
operating the handwheel and so turning the worm, worm wheel, pinion, and quadrant
fixed to the floor. As soon as the centre of gravity of the load has in this way
passed the centre of the car a releasing bar or catch lever is withdrawn whereby the
worm is moved or allowed to drop out of gear with the wormwheel and the weight of
the load inmediately tilts the floor over to its extreme angle.
As soon as the load has been thus discharged the floor swings back automatically to
its horizontal or normal position.
Dated this 30th day of December 1889.
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Dumping Cars or Tilting Wagons.
I, EDWARD FLEET ALFORD, of 1 Duchy Chambers, Manchester, in the County
of Lancaster, Agent, do hereby declare the nature of this invention, which has
been communicated to me from abroad by Alfred Seymour Fleet, of Fort Stevens,
Oregon, United States of America, Civil Engineer, 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 improvements in what are known as dumping cars or
tilting wagons which are usually mounted on rails and are employed for the
conveyance of stone and other heavy materials by contractors and others."
The novel features of the invention consist chiefly in an improved arrangement of
the dumping or tilting mechanism whereby the floor of the car or wagon returns to
its normal position after the load has been discharged.
According to this improved arrangement the floor of the car or wagon is hung
on pivots and to the floor is fixed a toothed quadrant into which gears a
pinion. There is a handwheel at one end of the frame of the wagon and on the

page_text: axis of this handwheel 19 a worm gearing into a worm wheel fixed on the axis of the
aforesaid pinion.
And in order that this invention may be fully understood and readily carried into
effect I will describe the accompanying three sheets of drawings, reference being had
to the figures and letters marked thereon.
Figure 1 is a side elevation Fig. 2 a plan and Fig. 3 an end elevation of the
improved dumping car or tilting wagon and Fig. 4 is an end elevation showing the
worm out of gear and the floor or platform tilted.
Fig. 5 is a longitudinal sectional elevation showing a rock in a movable box
being lowered on to the floor of the dump car and Fig. 6 is an end view illus-
trating the trajectory or line of flight taken by the rock as it slips off the tilted
platform.
Similar letters refer to similar parts throughout the several views.
The framing of the car is composed of a longitudinal beam or
<< draw timber" a
extending the full length of the car, and upon this beam a, at each end, is a stage or
frame respectively carrying the bearings or sockets cc for the trunnions or
pivots dd upon which the swinging floor or dumping frame e is mounted. To the
swinging frame e is secured the quadrant or toothed segment f gearing with a pinion g
fixed on
a shaft which is carried in bearings on the top of a strong frame which
is fixed upon the stage or end frame . On the shaft is the worm wheel; which
is geared with the worm k on the shaft on which are fixed the hand wheels m. The
bearings n of the shaft are contained between vertical guides o. and are held in
position by horizontal releasing bars p.
In operation a rock is put on a strong frame or movable box q (see Fig. 5) which
is lowered into position on the dumping frame e which is of course in a horizontal
position and the car is then taken out on the line of rails to the point where the load
is to be discharged.
When it is desired to tip or dump the load a few turns are given to the
hand wheel m and so turning the worm k, worm wheel j, pinion g and quadrant f
whereby the dumping frame e is inclined sufficiently to bring the centre of gravity
of the load to the right or left of the supporting trunnions, as the case may require ;
the proper releasing bar is then withdrawn to allow the bearings n to fall in their
vertical guides o with the handwheel shaft and the worm k to drop out of gear with
the worm wheel j, so that the dumping frame e heing released tilts over into
the position shown in Figs. 4 and 6 until its lower edge rests upon one of the rails of
the track the rock sliding off and taking the line of flight indicated by the dotted line
Fig. 6.
As soon as the load has been discharged the dumping frame e swings back
automatically to its horizontal or normal position, the handwheel shaft is then raised,
the worm & replaced in gear with the worm wheel; and the releasing bar
back to retain it in position, when the wagon is ready for another load.
p pushed
The chief advantages obtained by the use of the improved dumping car or wagon
are that it does not require lashing or otherwise fastening to the rails or track, it can
be operated by one man, and large rocks can be safely dumped between two tracks
of rails in the manner illustrated by Fig. 6.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The improved dumping or tilting wagon consisting of a suitable frame composed
of a longitudinal beam or draw timber and end frames or stages carrying bearings for
the trunnions of the swinging frame which supports the load and which has fixed upon
it a toothed segment or quadrant geared with a pinion upon the axis of which is a
worm wheel actuated by a worm preferably mounted in movable bearings all
substantially as and for the purposes herein set forth.
2. In a dumping or tilting wagon the combination with the toothed segment f.

page_text: pinion and worm wheel j, of the worm k mounted on the shaft which is
supported in the movable bearings n substantially as and for the purposes herein
set forth.
Dated this First day of September 1890.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.