AN IMPROVED FASTENING FOR LIDS, COVERS, FURNACE DOORS AND THE LIKE
Year: 1882

page_text: LETTERS PATENT to Joseph Ingleby of No. 7 St. Peters Square Manchester in
the County of Lancaster for an invention of "AN IMPROVED FASTENING FOR
LIDS, COVERS, FURNACE DOORS AND THE LIKE."-A communication from abroad
by The Berlin-Anhaltische Maschinenbau-Actien-Gesellschaft of Berlin in the
German Empire and George Liegel of Stralsund in the German Empire
PROVISIONAL SPECIFICATION left by the said Joseph Ingleby at the
Office of the Commissioners of Patents on the 11th July 1882.
"
JOSEPH INGLEBY of No 7 St. Peters Square Manchester in the County of
Lancaster. "AN IMPROVED FASTENING FOR LIDS, COVERS, FURNACE DOORS AND THE
LIKE [A communication from abroad by The Berlin-Anhaltische Maschinenbau-
Actien-Gesellschaft of Berlin in the German Empire and George Liegel of Stralsund
in the German Empire.]
This invention has for its object to effect the opening or closing and the
unfastening or fastening of retort lids, furnace doors, and the like by a single
motion. In the application to the fastening of retort lids, for instance, the retort
lid is provided in the usual way with lugs or cheeks at or about its middle by
which it is attached to a bridge piece hinged at one end to a lug on the retort.
According to the present invention the lid is connected to the bridge piece by an
eccentric pin or bolt and on the end of the bridge piece opposite to the hinge a
lever is pivotted, one end of which is formed as a hook, so as to hook into a loop
fixed to the retort-mouth at the opposite side of the before mentioned lug. The
loop is formed with a curved surface into which the lever hooks from the inner
side so that as the hook is made to engage with the loop by pressing the other end
of the lever towards the bridge piece, the lid is secured with a tightening or cam
action. The opening or closing of the lid is by this improved construction effected
by the single movement of drawing the lever outwards and upwards or pressing it
downwards and inwards, whereby in the one case the hook is first disengaged from
the loop and the bridge piece together with the lid then turned on its hinge, away
from the retort mouth, while in the other case the lid is first moved against the
retort mouth and the hook then made to engage with the loop.
The parts of the connecting pin fitting respectively in the central lugs of the lid
and the middle of the bridge piece are formed eccentric to each other, so that an
adjustment of the lid relatively to the bridge piece is easily effected.
It will be evident that the above fastening is also applicable for securing other
lids or covers, furnace doors and the like.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Joseph Ingleby in the Great Seal Patent Office on the 27th October
1882.
"
JOSEPH INGLEBY of No. 7 St. Peter's Square Manchester in the County of
Lancaster "AN IMPROVED FASTENING FOR LIDS, COVERS, FURNACE DOORS AND THE
LIKE A communication from abroad by The Berlin-Anhaltische Maschinenbau-
Actien-Gesellschaft of Berlin in the German Empire and Gustav Liegel of
Stralsund in the German Empire:
This invention has for its object to effect the opening or closing and the
unfastening or fastening of retort lids, furnace doors and the like by a single
motion. In the application to the fastening of retort lids, for instance, the retort
lid is provided in the usual way with lugs or cheeks at or about its middle by
which it is attached to a bridge piece hinged at one end to a lug on the retort.
According to the present invention the lid is connected to the bridge piece by an
eccentric pin or bolt and on the end of the bridge piece opposite to the hinge a
lever is pivotted, one end of which is formed as a hook so as to hook into a loop
fixed to the retort-mouth at the opposite side to the before mentioned lug. The
loop is formed with a curved surface into which the lever hooks from the inner
side; so that as the hook is made to engage with the loop by pressing the other end
of the lever towards the bridge piece, the lid is secured with a tightening or cam-
action. The opening or closing of the lid is by this improved construction effected
by the single movement of drawing the lever, outwards and upwards or pressing it
downwards and inwards, whereby in the one case the hook is first disengaged from
the loop and the bridge piece together with the lid, then turned on its hinges,
away from the retort mouth, while in the other case the lid is first moved against
the retort mouth and the hook then made to engage with the loop.
The parts of the connecting pin fitting respectively in the central lugs of the lid
and the middle of the bridge-piece are formed eccentric to each other, so that an
adjustment of the lid relatively to the bridge-piece is easily effected.
It will be evident that the above fastening is also applicable for securing
other lids or covers, furnace doors and the like.
The accompanying drawings shew the above-described improved fastening
applied to a retort lid. Fig. 1 shews a section Fig. 2 a plan and Fig: 3 a front
view of the fastening.
The retort lid A is connected to the bridge-piece B by the pin or bolt C passing
through the lugs B¹, the part of the pin fitting in these lugs being formed eccentric
to the part fitting in the bridge-piece so that by turning the pin round more or
less an adjustment of the lid relatively to the bridge piece can be obtained.
The bridge-piece B is pivotted at D to the retort mouth and carries at its other
end a lever catch E pivotted at F and engaging with its hooked end in the loop G
on the retort mouth, such loop being formed with a curved inner surface so that by
pressing the end of the lever towards the bridge piece, the hooked end is made to
secure the lid with a tightening or cam-action
From this arrangement it will be seen that for opening or closing the lid, only
the single continued movement of the lever catch E as represented by the dotted
line a b c is required. Figs. 4 and 5 shew a plan and section of a dip-pipe to a
bydraulic main with the improved cover applied thereto :
Having thus described the nature of the said invention and in what manner the
same is to be performed as communicated to me by my foreign correspondents, I
claim:-
First. The improved construction of fastening for lids covers or doors, wherein

page_text: a lever catch pivotted to a hinged bridge-piece, carrying the cover is made to engage
with a fixed loop or eye in such manner that the opening or closing of the lid,
cover or door is effected by the single continued movement of the lever catch,
substantially as herein described.
Second. The combination of the cover, lid or door A connected by an eccentric
pin C to the bridge piece B pivotted at D and carrying the lever catch E engaging
with its hooked end in the loop G arranged and operating as herein set forth.
In witness whereof, I the said Joseph Ingleby have hereunto set my hand
and seal this twentysixth day of October in the year of our Lord, One
thousand eight hundred and eighty two
TACAD NAIL ADVE