AN IMPROVEMENT CONNECTED WITH DOORS OF GAS-RETORTS
Year: 1883

page_text: LETTERS PATENT to James Bartle of the Western Iron and Brass Foundry
Lancaster Road Notting Hill in the county of Middlesex for an Invention
of AN IMPROVEMENT CONNECTED WITH DOORS OF GAS-RETORTS
PROVISIONAL SPECIFICATION left by the said James Bartlo at the Office
of the Commissioners of Patents on the 30th July 1883.
JAMES BARTLE of the Western Iron and Brass Foundry Lancaster Road Notting
Hill in the county of Middlesex AN IMPROVEMENT CONNECTED WITH DOORS OF
GAS-RETORTS.
The object of this invention is to fit or arrange a door of a gas retort that a
sliding rising action be given to it while being tightened up by the screw and also
that a sliding fallen action be given to it to release it from contact with the face of
the barrel whereby the door is dislodged from the tar in an easy manner when being
released for opening and ensures a close fit without the usual luting.
For the purpose of my invention I arrange the door with the hinge bolt hole of
somewhat an oval shapo so as to give freedom for the door to drop while being
released from actual contact with the face of the barrel when the back action of the
screw takes place.
The central aperture or recess in which the point of the tightening scrow works
is of conical shape the apex being the true centre of the door and when the door is
closed to by the cross bar and held in that position the point of the tightening screw
is caused to enter the aperture or recess and as the screw is turned the door
gradually rises by reason of the conical shape of the aperture while at the same
time it is being put gradually into close contact by a sliding lifting action until the
opening of the barrel is completely scaled.
The same action in the reverse order takes place to free the door for opening
purposes that is to say-As the tightening screw is being turned back the door
drops by its own weight from its hinge joint and so dislodges itself from the tar
which permits of free opening.
The novel feature in this invention is Making the aperture or recess in the door
in which the point of the tightening screw works of a conical or equivalent shape
so that the point while being turned causes the door to rise and slide in contact
with the face of the barrel until the point of the screw reaches the apex or true
centre of the door to force it home for sealing the joint, the door being hung loosely
at its hinge joint for the purpose.
•

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Bartle in the Patent Office on the 30th January 1884.
JAMES BARTLE of the Western Iron and Brass Foundry Lancastor Road Notting
Hill in the county of Middlesex "AN IMPROVEMENT CONNECTED WITH DOORS OF
GAS RETORTS"
The object of this invention is to fit or arrange a door of a gas retort that a
sliding rising action be given to it while being tightened up by the screw and also
that a sliding fallen action. be given to it to relenso it from contact with the face of
the barrel whereby the door is dislodged from the tar in an easy manner when being
released for opening and ensures a close fit without the usual luting.
For the purpose of my invention (which I show on two ordinary shaped
mouths of retorts at Figures 1, 2. 3 and 4 of the annexed drawings) I arrange the
door A with the hinge bolt hole of somewhat an oval shape to give freedom for
the door A to drop while being released from actual contact with the face B
of the barrel or mouth C when the back action of the screw D takes place.
I make the central aperture or recess E, in which the point of the tightening
screw D works, of conical shape as clearly shown by the section Figure 5 the apex
of the conical hole being the true centre of the door A and when the door is closed
to, by the cross bar F and held in that position, the point of the tightening scrow,
is caused to enter the aperture or recess E, and as the screw D, is turned, tho
door A gradually rises by reason of the conical shape of the aperture E, while at
--the same time, it ie the door, is being-put-gradually into closer contact by a sliding-
lifting-action until the opening of the barrel C is completely sealed.
The same action, in the reverse order, takes place to free the door A for opening
purposo, that is to say. as the tightening screw D is being turned back, the door Å
drops by its own weight, from its hinge joint A¹ and so dislodges itself from the
tar, which permits of a free opening by the hand lever F, after said lover is lifted
over the catch G, the door A being then swung open by the pin H of the lever F,
riding in the slot of the lip piece I which is attached to or formed with the
door A.
I have only shown an oval and a shaped mouth of a gas retort in the
drawings but my method of sealing the mouth by a sliding surface contact action
as before explained can be adopted or arranged for all other shapes.
The novel feature in this invention and what I claim is, making an aperture or
recess E in the door A of a retort, (into which the point of tightening screw D works)
of a conical or equivalent shape so that the point of said screw while being turned,
causes the door A to rise and slide in contact with the face B of the mouth or
barrel C until the point of the screw D reaches the apex or true centre of the door
to force it home for sealing the joint, the door being hung loosely at its hingo joint
for the purpose
In witness whereof I the said James Bartle have hereunto set my hand and seal
this twenty ninth. day of January in the year of our Lord One thousand eight
hundred and eighty four.