IMPROVEMENTS ÅDDARATHS FOR RAISING. TIPPING. AND LOWERING TRUCKS,' TN 33 IN ADDARATUS FOR RAISING, TIPPING, AND LOWEring Trucks
Year: 1875

page_text: LETTERS PATENT to Robert Aspland Marillier, of the Town or
Borough of Kingston-upon-Hull, in the County of the same Town
or Borough, Civil Engineer, for the Invention of "IMPROVEMENTS
ÅDDARATHS FOR RAISING. TIPPING. AND LOWERING TRUCKS,'
TN
33
IN ADDARATUS FOR
RAISING, TIPPING, AND LOWEring Trucks.”
PROVISIONAL SPECIFICATION left by the said Robert Apsland
Marillier at the Office of the Commissioners of Patents, with his
Petition, on the 10th February 1875.
I, ROBERT ASPLAND MARILLIER, of the Town or Borough of
Kingston-upon-Hull, in the County of the same Town or Borough,
Civil Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPARATUS FOR RAISING, TIPPING, AND LOWERING TRUCKS,"
to be as follows:-
This Invention relates to the construction and arrangement of
hydraulic apparatus for raising, tipping, and lowering trucks, as for
example, coal trucks, when they are brought to a quay to have their
contents delivered into vessels alongside.

page_text: Such trucks are sometimes made with fixed bottoms, in which case
they have to be tipped in order to discharge their contents into a shoot.
Sometimes they are made with moveable bottoms which can be opened
when they are brought over the shoot.
My apparatus may be applied in either case, as I will describe, its
object being to expedite the work of discharge. I arrange two hydraulic
lifts at the side of the quay with a space between them somewhat wider
than the length of a truck. One of these is employed for raising the
trucks from the level of the rails to the higher level required for dis-
charging into the shoot. The other is employed for lowering the empty
trucks from the higher level to the level of the rails.
The first mentioned lift consists of a platform mounted on the ram
of a hydraulic cylinder and fitted to move between upright guides. On
the platform are rails which when the platform is at the lower level lie
in line with the ground rails.
For trucks that open at the bottom the rails are fixed on the platform,
but for tipping trucks they are on a frame which can swivel on an axis
transverse to the rails, which axis is mounted not in the middle of the
platform but nearer the side next the shoot. The lift may however be
always fitted with such swivelling rails, so that it can be used as may
be required, either for tipping trucks or for those that do not tip. The
swivelling frame at the end of its shorter arm is connected to a chain
which passes downwards under a pulley mounted on an inverted
hydraulic ram at the lower level, and is carried thence upwards and
over a pulley, its end being attached to a counterbalance weight. When
the platform is down the loaded truck is run on to its rails and its
back axle is hooked to the swivelling frame; the platform is then
raised by admitting water under pressure to act on the ram of the
hydraulic cylinder till its rails are brought up to the required height.
The chain attached to the rail frame is thus drawn up till the counter-
weight upon it comes against a stop. Water under pressure is then made
to act upon the inverted ram, and this drawing the chain, one end of
which is stopped, causes the rail frame to incline so as to tip the truck
and discharge its contents into the shoot which is arranged in the space
between the two lifts. The truck having been thus discharged the
pressure on the inverted ram is relieved, whereupon the rails return to
their level position, and the truck being unhooked is run off the plat-

page_text: form across the intermediate space, which is provided with rails, on to
the platform of the other lift which has been raised ready to receive it.
When the truck is not of the tipping kind the inverted ram with the
chain and counterweight, as well as the hook for securing the truck on
the rail frame are dispensed with or are not used. The truck in that
case is merely raised to the higher level, run on to the intermediate
space, discharged by opening its bottom, and then run on to the lowering
platform. The lowering platform rests on the ram of a hydraulic
cylinder which communicates by a governing valve with the accumulator
or other source of pressure.
The proportions are so adjusted that the pressure on the ram raises
the platform when it has no load on it, but that the weight of the empty
truck causes the platform to descend, forcing back the water, the rapidity
of the descent being regulated by the governing valve. By this arrange-
ment and mode of operating, while one tipping truck is being raised on
the one platform and discharged, the truck previously discharged is
being lowered on the other platform and run off on the lower line
of rails; or with trucks opening at bottom, while one is being raised
another can be discharged and a third lowered. Thus much of the time
is saved that is usually expended when one platform only is employed
for raising the loaded and lowering the empty trucks.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Aspland Marillier in the Great Seal
Patent Office on the 9th August 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
ASPLAND MARILLIER, of the Town or Borough of Kingston-upon-
Hull, in the County of the same Town or Borough, Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of February, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Robert Aspland Marillier, Her
special license that I, the said Robert Aspland Marillier, my exe-

page_text: The first-mentioned lift consists of a platform mounted on the ram
of a hydraulic cylinder and fitted to move in upright guides. On the
platform are rails which when the platform is at the lower level lie in
line with the ground rails.
For trucks that open at the bottom the rails are fixed on the platform,
but for tipping trucks they are on a frame which can swivel on an axis
transverse to the rails, which axis is mounted not in the middle of the
platform but nearer the side next the shoot. The lift may however be
always fitted with such swivelling rails, so that it can be used as may
be required either for tipping trucks or for those which do not tip. The
swivelling frame at the end of its shorter arm is connected to a chain
which passes downwards under a pulley mounted on an inverted
hydraulic ram at the lower level, and it is carried thence upwards
and over a pulley, its end being attached to a counterweight. When
the platform is down the loaded truck is run onto its rails and its
back axle is hooked to the swivelling frame; the platform is then
raised by admitting water under pressure to act on the ram of the
hydraulic cylinder till its rails are brought up to the required height.
The chain attached to the rail frame is thus drawn up till the counter-
weight upon it comes against a stop. Water under pressure is then made
to act upon the inverted ram, and this drawing the chain, one end of
which is stopped, causes the rail frame to incline so as to tip the truck
and discharge its contents into the shoot which is arranged in the
space between the two lifts. The truck having been thus discharged the
pressure on the inverted ram is relieved, whereupon the rails return to
their level position and the truck being unhooked is run off the plat-
form across the intermediate space which is provided with rails, on to
the platform of the other lift which has been raised ready to receive it.
When the truck is not of the tipping kind the inverted ram with the
chain and counterweight, as well as the hook for securing the truck on
the rail frame are dispensed with or are not used. The truck in that
case is merely raised to the higher level, run on to the intermediato
space, discharged by opening its bottom, and then run on to the lowering
platform. The lowering platform rests on the ram of a hydraulic
cylinder which communicates by a governing valve with the accumulator
or other source of pressure.
The proportions are so adjusted that the pressure on the ram raises
the platform when it has no load on it, but that the weight of the empty

page_text: truck causes the platform to descend forcing back the water, the rapidity
of the descent being regulated by the governing valve. By this arrange-
ment and mode of operating, while one tipping truck is being raised on
the one platform and discharged, the truck previously discharged is
being lowered on the other platform and run off on the lower line
of rails; or with trucks opening at bottom, while one is being raised
another can be discharged and a third lowered. Thus much of the time
is saved that is usually expended when one platform only is employed
for raising the loaded and lowering the empty trucks.

page_text: Second. The method, substantially as herein described, of tipping the
loaded truck by the action of a hydraulic cylinder on a tilting platform
or rails.
In witness whereof, I, the said Robert Aspland Marillier, have
hereunto set my hand and seal, this Seventh day of August,
in the year of our Lord One thousand eight hundred and seventy
five.
ROBERT ASPLAND MARILLIER. (L.S.)