Improvements in and connected with Fastenings for Retort Lids and other Lids.
Year: 1896

page_text: Date of Application, 14th May, 1896
Complete Specification Left, 3rd Feb., 1897-Accepted, 6th Mar.. 1997
PROVISIONAL SPECIFICATION.
Improvements in and connected with Fastenings for Retort Lids
and other Lids.
I, WILLIAM WILLIAMS Box of Home Lodge, Nelson Road, New Brompton,
in the County of Kent, Engineer do hereby declare the nature of this invention to
be as follows:-
My invention refers to the fastenings for retort lids and other lids.
I provide the mouthpiece of a gas retort, for instance with a lid having
preferably V edges to close against the face of the mouthpiece. The lid is
provided with one or more sets of lugs and in between these there is a cross bar
pivotted at one end to a lug attached to or made in one with the mouthpiece in
such manner that the lid is supported by and swings with the crossbar, while the
other end of the cross bar is constructed to hook over a weighted and pivotted
catch mounted on the opposite side of the mouthpiece. In order to prevent the
lid from being displaced on the cross bar the latter is provided with oval holes
and there are pins or bolts which pass through the lugs on the lid and the said
oval holes in such manner that while the lid is kept in position it is also allowed a
small amount of play on the cross bar. In order to make a tight joint between
the lid and face I provide the cross bar with a screwed hole in the middle and a
screwed spindle passes therethrough. The end of the screwed spindle nearest the
lid is reduced in diameter and I mount thereon a ferrule or boss which takes up
against the lid. The ferrule or boss is prevented from falling off by a nut or
other fastening such as a key or set screw for instance in the boss taking into an
annular groove near the inner end of the spindle. The screwed spindle is
preferably operated by a hand wheel without spokes as in practise it is found
that the operators take advantage of anything whereby they may obtain increased
leverage with the frequent result that the fastenings are strained and some-
times broken. To prevent the tar and pitch from getting to and clogging up
the screwed spindle the cross bar is provided with a shield which covers the
screw.
Dated this 14th day of Mar 1806
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.
Improvements in and connected with Fastenings for Retort Lids
and other Lids.
I, WILLIAM WILLIAMS Box of Home Lodge Nelson Road New Brompton
in the County of Kent, Engineer, 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 consists of a crossbar to which the lid is attached and which is

page_text: hinged at one end to the mouth piece of the retort or other object its other end
being adapted to be fixedly connected thereto by means of a pivoted weighted
catch, a device being provided on the crossbar for pressing the lid against the
retort mouth and thus making tight joint therewith. In connection with this
device I may provide a shield for preventing the tar from clogging it.
Fig. 1 of the accompanying drawings is a plan of a retort mouthpiece with a
fastening of my construction applied thereto, Fig. 2 is a side view partly in section
and Fig. 3 a part sectional front view of same.
The mouthpiece A is provided with a lid B having preferably a V shaped
annular projection or rim to close against the truly turned flat end face of the
mouthpiece. The lid is provided with one or more (here two) sets of lugs C
and in between these there is a crossbar D pivoted at one end to a lug E
attached to (or made in one with) the mouthpiece A in such manner that the
lid is supported by and swings with the crossbar D while the other end of the latter
is constructed to hook over a catch F pivoted to the opposite side of the mouth-
piece and weighted at F. In order to prevent the lid from being displaced on the
cross bar, the latter is provided with oval holes and there are pins or bolts G which
pass through the lugs C on the lid and through the said oval holes in such manner
that while the lid is kept in position it is also allowed a small amount of play on
the cross bar. In order to make a tight joint between the lid and the face of the
mouthpiece I provide the cross bar with a screwed hole in the middle and a screwed
spindle H passes therethrough. The end of the said spindle nearest the lid is
reduced in diameter, and I mount thereon a ferrule or boss I which takes up
or bears against the lid. The ferrule or boss is prevented from falling off by
a nut K or other fastener such as a key or set screw for instance taking into
an annnlar groove near the inner end of the spindle H. This spindle is
preferably as shown operated by a handwheel L without spokes, as in practice
it is found that the operators take advantage of anything whereby they may
obtain increased leverage with the frequent result that the fastenings are strained
and sometimes broken. To prevent the tar and pitch from getting to and clogging
up the screwed spindle the cross bar is provided with a shield M which covers the
screw.
Fig. 4 is a plan view and Fig. 5 a side view of a cross bar provided with
another form of device for pressing the lid against the retort mouth. L is a
hand lever pivotted to the crossbar and carrying a roller I which in the position
shown bears hard on the lid and presses it against the retort mouth thus making
tight joint.
Or the lever
A shield
The lid is at this place slightly sloping or camshaped as shown.
may be made with a canishaped end without being fitted with a roller.
such as M described with reference to Figs. 1, 2 and 3 may also be provided for
the purpose stated.
The various forms of retort lid fastening at present in general use involve much
useless trouble in bringing the parts in position and in making a tight joint between
the lid and the retort mouth whereby the fastening and lid often become damaged.
By my invention 1 obviate these defects; my fastening cannot get out of order or
damaged by the workmeu, it is easily and cheaply applied to existing mouthpieces;
the retort is quickly opened and quickly closed and the tar flowing out of the retort
cannot impair the easy working.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is.
1. A fastening for retort lids and other lids consisting of a cross bar to which
the lid is attached and which at one end is hinged to the mouthpiece and having
its other end adapted to be fixed thereto by means of a weighted catch, the cross
bar being provided with a device for pressing the lid against its seat or face to
make tight joint therewith substantially as set forth.

page_text: 2. The cross bar D carrying the lid B by pins G passing through oval holes in
the cross bar and round holes in lugs C on the lid, the bar D being at one end
hinged to the retort mouth piece or other part and at the other end adapted to be
fixed thereto by a weighted catch lever F, the bar D being provided with a device
for pressing the lid against the seat or face to make joint therewith substantially
as described with reference to Figs. 1 to 5.
3. In combination with a device for pressing the lid against the seat or face a
shield fastened to the cross bar, substantially as described and shown.
Dated the Third day of February 1897.
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.