Improvements in Fastenings for Retort Lids and other Lids.
Year: 1891

page_text: Date of Application, 4th Nov., 1891
!omplete Specification Left, 27th June, 1592-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Fastenings for Retort Lids and other Lids.
I, WILLIAM WILLIAMS Box of Crayford Kent Gas Works Manager do
hereby declare the nature of this invention to be as follows:-
The object of my invention which is especially useful as applied to gas retorts
and other retorts is to provide a ready and convenient means of opening and closing
the lid for same.
For this purpose I use the ordinary cross bar which is jointed to
a bracket or lugs on one side of the retort mouth-piece and which at the other end
is adapted to swing in under a projection lug or bracket on that side of the mouth-
piece, and I form a screw thread through the middle of the cross bar and fit a screw
spindle thereto by preference with square thread having at one end a handle for
turning it by and being at its other end reduced in diameter. On this reduced part
I loosely fit a ferrule or boss with a flange which takes a bearing against the middle
of the lid and which when the screw is turned down is free to turn on the reduced
end of it to the required extent to give a fair and easy bearing on the lid and yet
readily released. By this mode of fastening, the lid is not damaged or put out of
shape. Moreover the lid may conveniently be cut out of sheet iron or by preference
sheet steel. For holding the ferrule in its place on the screw spindle it is recessed
in its lower flanged face for a nut to lie therein such nut fitting on a still further
reduced end of the screw spindle which end is screwed to suit the nut. The nut
may be round with a notch or notches for turning it by by means of a spanner, or
it be hexagon adapted for turning it by means of a box spanner.
may
If the screw
is made of malleable cast iron the handle may be cast thereon, and if of wrought
iron it may be forged on.
Dated this 4th day of November 1891
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Fastenings for Retort Lids and other Lids.
I, WILLIAM WILLIAMS Box of Crayford, Kent, Gas Works Manager 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:-
The object of my invention which is especially useful as applied to gas retorts
and other retorts is to provide a ready and convenient means of opening and closing
the lid for same.
For this purpose I construct the parts as hereinafter described
with special reference to a horizontal or other gas retort,
Figure 1. being an end view of a retort mouth piece and lid and
Figure 2. a plan view partly in section.
A is the ordinary cross bar which at one end is jointed to lugs B or a bracket on
one side of the retort mouth piece C and which at the other end is adapted to swing
in behind a projection D on a lug or bracket on that side of the mouth piece the
jointed end of the bar A having play between the lugs B and at the joint pin and
I form a screw thread through the middle of the cross bar A and fit a screw spindle E
thereto by preference with square thread as shown having at one end a handle E'
for turning it by and being at the other end reduced in diameter. On this reduced
part I loosely fit a ferrule, collar or boss F with a flange or end face which takes a
bearing against the middle of the lid G and which when the screw E is turned down
DO 1

page_text: is free to turn on the reduced end of it to the required extent to give a fair and
easy bearing on the lid and yet so as to be easily released.
By this mode of fastening, the lid is not damaged or put out of shape. More-
over the lid may conveniently be cut out of sheet iron or by preference of sheet
steel.
nut.
For holding the ferrule F in its place on the screw spindle E it is recessed in its
lower flanged part or face for a nut Ex to lie therein, such nut fitting on a still
further reduced end part of the screw spindle which end part is screwed to suit the
The latter may be round with a notch or notches for turning it by with the
aid of a spanner or it may be hexagon adapted for turning it by means of a box
spanner. If the screw is made of malleable cast iron the handle may be cast thereon
and if of wrought iron it may be forged on or fitted on a square as shewn.
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 I
claim is
An improved fastening for a retort lid and other lids consisting of a cross bar
jointed at one end to a lug, lugs or bracket on the retort mouth piece or other
article intended to be closed by such lid and adapted to swing in behind a lug at
the other end, the said cross bar being in the middle pierced with screw thread and
provided with a screw which is fitted with a ferrule or collar adapted to turn freely
thereon and to take a fair bearing against the lid substantially as described and
shewn.
Dated this 27th do CT
1003
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.