Year: 1886

page_text: Date of Application, 28th June, 1886
Complete Left, 28th Mar., 1887.
Complete Accepted, 29th Apr., 1887.
HENRY HYMAN SALOMONS of Haarlem in the Kingdom of Holland, Gas Engineer,
do hereby declare the nature of this invention to be as follows:-
In carrying out my invention, I form the retort cover, lid, or door, with centra
hemispherical recess, and in this recess I secure, by means of a plate, screwed or
otherwise secured to the cover, the hemispherical head of a screw bolt. This screw
bolt takes into a threaded socket in the cross bar, and it is provided at its outer end
with means by which it may be turned. The cover is also formed, on one side, with
two parallel ribs or flanges, between which works an excentric disc or cam carried
by the cross bar. The cross bar is hinged at one end to the mouthpiece, and at the
other end is secured by a link or other suitable fastening. Connected with the axis
of the cam is a lever by which the cam or disc may be rotated. The rotation of the
cam or disc will effect the rotation of the cover on its central pivot, and cause a grinding
action of the cover on the face of the mouthpiece, which will serve to remove deposits
of tar or dirt such as would prevent a good joint being made.
Instead of the excentric disc or cam, I may employ a worm or pinion carried by the
crossbar, and gearing with a worm wheel or tooth sector formed on the cover, or vice
versa, to effect the rotation of the cover.
The tightening up of the cover or lid may be effected by means of wedge pieces
secured to or formed with the cover and the crossbar, so that when these wedge pieces
come together by the rotation of the lid, pressure will be applied to the lid; or I may
form at or near the periphery of the cover, two, three, or more wedge pieces, which
will take under correspondingly shaped catches secured to, or formed with the mouth-
piece; or I may form the cover with projecting pieces, to the underside of which I
secure, by bolts or otherwise, wedge-shaped catches, which, as the lid is rotated, will
come into contact with similarly shaped projecting pieces formed on the mouthpiece.
By using the last two mentioned arrangements, the cover will be held down at
several points in its circumference.
The tightening may also be effected by screwing up the central screw, on the head
of which the cover is mounted, but I prefer the arrangement of the wedge pieces, for
as the rotation of the cover is effected, the pressure is gradually increased, and the
grinding action of the cover on the mouthpiece becomes more effectual.
Dated this 28th day of June 1886
NEWTON & SON,
Agents for the Applicant.

page_text: Fig. 7, Sheet 11, is a front view, and
Fig. 8 a top view, showing a modification in the means for rotating the cover, and
also in the tightening devices;
and
Fig. 9 is a front view, and
.
Fig. 10 a top view, shewing a further modification in the rotating device.
Referring now to Figs. 1 to 4, Sheet I, A is the mouth piece of the retort, B is the
cover, lid, or door, and C is the cross bar, which is hinged at C to the mouthpiece,
and is secured at C² by a link pivotted to the mouthpiece, or by any other suitable
or well known form of fastening.
The cover B is formed with a central semi-spherical recess a, to receive the semi-
spherical head of a screw b, which enters a threaded socket in the bar, and by which
the cover is secured to the cross bar C.-The head of the screw bis secured in the
recess by a plate c, which is bolted, rivetted, or otherwise firmly secured to the cover B,
and on the end of the screw I may mount a hand-wheel d*, or apply a lever or handle
by which the screw may be turned in order to bring the cover up to the face of the
mouth piece, and to apply a certain amount of pressure. Cast with the cover, and
preferably at one side thereof, say, the hinge side, are two parallel ribs or flanges d, and
on either side of the centre is one of a pair of wedge-shaped pieces or inclined
surfaces e, the object of which will be presently explained.
Formed in the bar Cis.a socket or bearing for an axle f, on the inner end of which
is mounted an excentric disc or cam g, which works between the two ribs or flanges d.
The outer end of this axle receives a handle h by which the axle is rotated. The
rotation of the axle causes the cam to act on the cover, which is thus rotated on the
central screw, for the purpose of cleaning the face of the mouth piece, by grinding
away any deposits of tar as before mentioned. As the cover rotates, the inclined
surfaces e cast thereon, and which are inclined in opposite directions, come into contact
with the under side of the cross bar C, and, by reason of the inclined faces, serve to

page_text: tighten or wedge up the cover against the face of the mouth piece, the pressure being
increased as the rotation continues.
Instead of the wedge pieces e, I may form the screw 6 with a quick thread, and
secure it permanently to the cover, so that as the cover is rotated, the screw will be
also rotated, and, by reason of the pitch of the thread, will at the same time gradually
tighten up the cover.
In Figs. 5 and 6, I have shown the same mode of rotating the cover, but the
tightening device is different-thus, I form the mouthpiece with projections i, the
under sides of which are bevilled or inclined (see Fig. 6).-The cover I also form with
projections, which extend beyond the periphery of the mouthpiece, and to these
projections j, I bolt, rivet, or otherwise secure, hooks or catches j¹, the faces of which
are inclined to correspond to the projections (see Fig. 6). As the cover is rotated,
the inclined surfaces come together and tighten up the cover, as will be well
understood.
In this arrangement I secure the cover at several points in its circumference, and
therefore obtain a more effectual closing of the cover than when the pressure is applied
only along the centre line of the cover.
In Fig. 7 and 8, Sheet II, the rotating device consists of a pinion, which takes
into a toothed sector cast on the cover. The action of this device will be clearly
understood from the drawing, without further description.
i
In these Figures, the tightening device shown is the reverse of that shown at
Figs. 5 and 6; thus, the projections are on the cover, and the hooks or catches jare
on the mouth piece, the inclined surfaces being also provided.
In Figs. 9 and 10, the rotating device consists of a worm and worm wheel m. The
wheel mis mounted on the stud b, which will be rigidly secured to the cover.
The worm is mounted on an axle which has its bearings in lugs or projections formed
with the cross bar C, and is provided with a hand wheel ', by which it may be turned
to effect the rotation of the cover.
The tightening device in these Figures is the same as that shown in Figs. 7 and 8.
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 :-
1st. The means substantially as herein described and shown in the drawings for
rotating retort covers, lids, or doors for the purpose set forth.
2nd. The means substantially as herein described and shown in the drawings, for
tightening up retort covers lids or doors.
3rd. The combination of the means for rotating the cover, lid or door of a retori
with the means for tightening up the same, substantially as herein described and
shown in the drawings.
-4th. In means for rotating retort covers, lids, or doors, the application of a cam
pinion or equivalent device carried by the cross bar, and acting between ribs or flanges,
or gearing with corresponding parts formed at one side of, or with the cover, lid or
door, substantially as described.
5th. In means for rotating retort covers, lids, or doors, the combination of a
worm carried by the cross bar and a worm wheel connected with the cover, lid, or door
as set forth.
6th. The combination with a rotating cover, of inclined surfaces as and for the
purpose set forth.