Improvements in Dumping Cars.
Year: 1896

page_text: Date of Application, 6th Oct., 1896-Accepted, 9th Jan., 1897
COMPLETE SPECIFICATION.
Improvements in Dumping Cars.
1, WILLIAM GEORGE LANE, of North Sydney, in the County of Cape
Breton, Province of Nova Scotia in the Dominion of Canada, Clergyman, 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:-
This invention relates to improvements in coal dumping cars and it is carried out
as follows, reference being had to the accompanying drawings where :-
Fig. 1 represents a top plan view of the improved coal dumping car showing the
hopper removed and the discharge doors closed.
Fig. 2 represents a longitudinal section on the line 2-2 shown in Fig. 1.
Fig. 3 represents a similar section showing the doors open.
Fig. 4 represents a cross-section on the line 4-4 shown in Fig. 1.
Fig. 5 represents an enlarged longitudinal section similar to Fig. 2; and
Fig. 6. represents a detail top plan view of the door locking device shown in
Fig. 5.
Similar letters refer to similar parts wherever they occur on the different parts
of the drawings.
The object of my invention is to carry a load of coal or other materials in a
hopper car and means for dumping the load instantly as will hereinafter be more
fully shown and described.
In the drawings A represents the hopper of the car secured to the car frame B
in any suitable manner.
C, C, represent the wheels on which the car frame is mounted: D represents the
lower discharge opening of the hopper, which opening is normally held closed by
means of doors E and F as shown in Figs. 1, 2, 4 and 5.
On the underside of the door E are secured transverse shafts or rods E, E; on
the ends of which are journalled the preferably grooved wheels or rollers e¹,.ell,
adapted to roll on curved stationary ways E, E, secured to the car frame B,
a little beyond the sides of the door É as shown.
The ways E³ E, are preferably made.ogee in shape, the ways Es being curved
or inclined upwards from the middle towards the end of the car, and the ways E
being made similar in shape but inclining downwards from the middle towards the
end of the car as, fully shown in Figs. 2, 3 and 5.
To the door Fare likewise secured similar transverse axles or rods F¹, F", on
the ends of which are journalled the preferably grooved rollers or wheels f, f
adapted to roll on curved or stationary inclined ways F, F, like the respective
ways E, E', hereinabove described.
At one end of the car is journalled in bearings a transverse shaft G to which is
secured a downwardly projecting lever G', to the lower end of which is pivoted a
link 9, the forward end of which is suitably pivoted or connected to the inner end
of the movable door F as shown.
To said shaft G are also secured upwardly projecting levers H, H, to the
upper ends of which are pivoted links h, h, the forward ends of which are
pivotally connected to the inner end of the door E and preferably to the ends of
its shaft E
G is a crank or lever attached to one end of the shaft G for the purpose of
turning the latter when opening and closing the doors E, F.
It is desirable in a dumping car of this description that, the doors should be held

page_text: firmly locked together when closed and for this purpose I prefer to use a locking
device of the kind shown in Figs. 5 and 6.
Said locking device consists of, a hooked dog. I secured to the underside of the
door E near its inner edge adapted to interlock with a bail or link K pivoted to
the underside of the door F.
To the inner edge of the door F is pivoted a strap or link L to the lower end of
which the link g is pivoted as shown.
On the sides of the strap L are side projections 1, 1, which come in contact with
the underside of the link K, and causes the latter to be disengaged from the. hook I
when the link g is moved in the direction of the arrow shown on said link in Fig. 5,
thus unlocking the doors from each other and causing said doors to be forced by
the pressure of the load to the positions shown in Fig. 3 and during such opening
of the doors their rollers are guided and made to roll on the respective ways E³,
E, F, F, as shown in said Fig. 3.
On the pivoted link L is an end projection or lip shown in Fig. 5 adapted to
bear against the underside of the door F during the closing movement of said door
and such lip serves as a stop to prevent the link L from going beyond a vertical
position during the closing movement of said door F as shown in Fig. 5.
The operation is as follows:-
To unload the car, it is only necessary to turn the shaft G in the direction of the
arrow shown in Figs. 2 and 5, causing the link K to be released from the hook I
when the now liberated doors E, F, may be moved to their open positions shown
in Fig. 3, by turning the shaft G still further in the same direction causing the
doors E, F, to roll on their respective guide way's E, E, F, F, to the inclined
open positions represented in Fig. 3: and during such dumping of the load the
downward pressure of the contents of the car aid in forcing and holding the doors
open during such discharge.
40
After the contents of the car has been discharged the doors are closed by
turning the shaft G in the direction of the arrow shown in Fig. 3, causing them
to assume their original closed and locked positions represented in Figs. 1, 2, 4
and 5, and held in such closed positions by the locking mechanism represented in
Figs. 5 and 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. A dumping car having a hopper open at its lower end and a pair of doors
adapted to roll on curved or inclined ways, and connected by means of links and
levers to a rock shaft journallid on the car frame, substantially as and for the
purpose set forth..
2. A dumping car having a discharge opening at its bottom and a pair of doors
mounted on rollers and adapted to roll on inclined or curved guide ways combiped
with links pivoted to said doors and to levers secured to a rock shaft journalled on
the car frame and an automatic locking and unlocking device substantially as and
for the purpose set forth.
3. A dumping car having a discharge opening and a pair of movable doors
mounted on rollers combined with inclined or curved guide ways E, F, E, F for
said door, the ways E, F, being inclined or curved upwardly and the ways E, F³,
being curved or inclined downwardly to cause the inner ends of the doors to
descend and the outer ends thereof to ascend, during the dumping operation and
suitable connecting mechanism for actuating and locking said doors as and for the
purpose set forth."
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Dated this 6th day of October 1805
:./
m
HERBERT HADDAN & Co.,
.18 Buckingham Street, Strand, London, W.C.,
Agents to the Applicant.