IMPROVEMENTS IN RETORT LID FITTINGS
Year: 1885

page_text: I, CHARLES CLAUDE CARPENTER of the South Metropolitan Gas Works, Bridge
Foot, Vauxhall, in the County of Surrey, Gas Engineer do hereby declare the
nature of my said invention for "IMPROVEMENTS IN RETORT LID FITTINGS" to be
as follows:
This invention has for its object the construction of self-sealing retort lid
fittings, when the lid is attached to the cross bar, in such a manner that the bolt
connecting them shall not become loose, and at the same time will adınit of the
cross bar being adjusted to suit the requisite pressure, and the re-adjustment from
time to time necessarily consequent upon the wear induced by use.
The invention consists in making that part of the bolt which passes through the
lug on the lid round as usual, but the lower portion of the bolt that projects
beyond the lug and through the cross bar is made somewhat smaller in diameter,
hexagonal or polygonal in shape and eccentric to the lower or round part, while
that part of the bolt which rises above the cross bar has a screw cut upon it
and is provided with a nut as usual. The hole in the cross bar is hexagonal or
polygonal in form and corresponds in size with that part of the bolt that passes
through it. It will be seen therefore that while the lug of the lid is free to turn
partially upon the bolt, the cross bar and bolt are prevented from revolving at all,
and as a consequence the bolt does not become loose when the lid is moved from or
towards the mouthpiece. At the same time from the hexagonal or polygonal part
of the bolt being made eccentric to the lower part it allows of the relative positions
of the lid and cross bar being adjusted, or readjusted at pleasure.

page_text: 16
I, CHARLES CLAUDE CARPENTER of the South Metropolitan Gas Works, Bridge
Foot, Vauxhall, in the County of Surrey, Gas Engineer, do hereby declare the
nature of my invention for IMPROVEMENTS IN RETORT LID FITTINGS
" and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being had to the accom-
panying drawings, and to the letters and figures marked thereon, that is to say:-
This invention has for its object the construction of self-sealing retort lid fittings
when the lid is attached to the cross-bar, in such a manner that the bolt connecting
them shall not become loose, and at the same time will admit of the cross-bar
being adjusted to suit the requisite pressure, and the re-adjustment from time to
time necessarily consequent upon the wear induced by use.
In order that the invention may be easily understood drawings are attached
hereto, Fig. 1 being an elevation of the bolt and nut, Fig. 2 a vertical section of a
retort lid and mouthpiece showing the way in which the bolt and nut is applied,
and Fig. 3 is a portion of the cross bar in plan, with its hexagonal hole. In each
of the figures similar letters refer to the same parts.
The invention consists in making the part A of the bolt which passes through
the lug B on the lid C round as usual, but the portion D of the bolt that projects
beyond the lug and through the cross-bar E is made smaller in diameter hexagonal
or polygonal in shape and eccentric to the upper or round part A, while the part F
of the bolt which is beneath the cross-bar has a screw cut upon it and is provided
with a nut G as usual. The hole H in the cross bar E is hexagonal or polygonal
in form and corresponds in size with that part of the bolt that it is intended to
embrace.
It will be seen from the foregoing that while the lug of the lid is free to turn
partially upon the bolt, the cross bar and bolt are prevented from revolving at all,
and as a consequence the bolt does not become loose when the lid is moved from
or towards the mouthpiece. At the same time from the hexagonal or polygonal
part of the bolt being made eccentric to the lower part it allows of the relative
positions of the lid and cross bar being adjusted or re-adjusted at pleasure.
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. The construction of bolts having the part D made of a hexagonal or polygonal
shape, as herein described and shown on the drawings,--and
2. The construction of cross-bars each having a hexagonal or polygonal hole
corresponding in size to the bolt, as herein described and shown on the drawings.
D
1
W. H. BENNETT,
Agent for the Applicant.