An Adjustable Catch and Cross-bar Attachment for Retort Mouthpieces and other purposes.
Year: 1894

page_text: Date of Application, 26th Nov., 1894
Complete Specification Left. 26th July, 1895-Accepted, 7th Sept., 1895
PROVISIONAL SPECIFICATION.
An Adjustable Catch and Cross-bar Attachment for Retort
Mouthpieces and other purposes.
JAMES FRANCIS BRAIDWOOD The South Metropolitan Gas Co. Thames
Street Greenwich Keut do hereby declare the nature of this invention to be as
follows:-
An adjustable catch for cross bars of retort mouthpieces & other similar
purposes, somewhat similar in shape to those now in use, but capable of adjustment
by means of a wedge passing through two slots in the end in a vertical position by
means of which the adjustment is effected there is also a slot on either side of the
catch parallel with the back of wedge and a round hole in wedge between the two
slotted holes in the cheeks or sides of catch a small bolt is passed through the two
slots in the cheeks and the round hole in the wedge so that when the wedge is
adjusted the bolt is tightened and the wedge held in position. The advantage of
this invention is that the usual eccentric bolt on centre of cross bar is not required,
an ordinary bolt taking its place, and that the whole arrangement can be adapted
to existing mouthpieces and cross bars at a small cost also that the cost of new
ones is reduced, and the eccentric bolt done away with insuring a perfect and
reliable adjustment of the lid thereby enabling the eccentric lever to be placed in
any required position. In place of the eccentric bolt a metal bush with a flange
on the upper side is inserted in the bracket on the retort lid, with a hole in centre
three quarters of an inch in diameter and screwed to receive a suitable bolt, an
ordinary bolt is then passed through a hole in the cross bar and screwed into the
bush, when in position a nut is screwed down on the top which locks it securely.
Dated this 26th day of November 1894.
An Adjustable Catch and Cross-bar Attachment for Retort
Mouthpieces and other purposes.
I JAMES FRANCIS BRAIDWOOD Engineer, South Metropolitan Gas Company
Thames Street Greenwich Kent 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 :-
An adjustable catch for cross-bar of retort mouthpieces & other similar purposes,
somewhat similar in shape to those now in use, but capable of adjustment by means
of a wedge A, passing through two slots, B, in the end of the catch, in a vertical
position, by means of which the adjustment is effected. There is also a slot C on
either side of the catch, parallel with the back of the wedge and a round hole in
the wedge. A small bolt D is passed through the two slots in the cheeks and the
round hole in the wedge, so that when the wedge is adjusted the bolt is tightened,
and the wedge held in the position required, thereby insuring a perfect and reliable
adjustment of the lid, and enabling the eccentric lever to tighten in any desired
position.

page_text: The usual method of adjusting the distance of the cross-bar from the lid, is
by means of an eccentric bolt, particulars of which are as follows-The bolt
is first turned on two different centres, the end on which the nut is placed
being diameter while the upper half of the bolt is 18" diameter. Throughout
the bolt on one side there is a straight line, the whole of the projection in the
centre being on the opposite side, thus forming an eccentric. The bolt is passed
through a suitable hole in the bracket on lid, while the small end is passed
through the cross-bar underneath the bracket, and by turning the bolt by means
of its head, the eccentric portion effects the cross-bar, and removes it to or from
the lid.
In place of this eccentric bolt, a metal bush E with a flange on the upper side
is inserted in the bracket on the back of retort lid, with a hole in the centre,
three quarters of an inch in diameter, through which, and the cross-bar, a suitable
bolt F is inserted and secured in position by two lock nuts G.
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 catch which is adjustable by means of a wedge for the better securing of
retort lids and other purposes.
2. The use of a concentric collar bush and bolt instead of the ordinary eccentric
bolt for like purposes.
Dated this 26th day of July 1895.
J. F. BRAIDWOOD.