Apparatus for Opening and Olosing the Door
Year: 1898

page_text: Date of Application, 11th June, 1898 --Accepted, 23rd July, 1898
Apparatus for Opening and Olosing the Door; of Coke Ovens,
I, GUSTAV HILGENSTOCK, of No 32, Bezirk II Dahlhausen on the Ruhr, Germany,
Engineer, do hereby declare the nature of this invention and in what manner the
same 18 to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention relates to an apparatus by means of which the opening and closing
of all the doors of a series of coke ovens can be effected mechanically from one and
the same locality.
Heretofore the doors of coke ovens have almost always been opened by hand by
the aid of suitable winches. This operation is tedious and slow, and is also injurious
to the workmen, of whom at least two are required for each door
According to the present invention these disadvantages are obviated by effecting
the opening by means of motive power, to which each door can be rapidly connected
as may be required.
The apparatus for this purpose is shown on the accompanying drawing, in which
Figure 1 shews the front view of a coke oven having the apparatus applied
thereto,
Figure 2 shews a plan, and
Figures 3, 4 and 5 show respectively a front view, side view and plan of the
apparatus to a large scale.
Above the range of coke oven doors c Figures 1 and 3 and in line therewith, as
at Figure 2 18 mounted a travelling winch a running into wheels b upon rails & and
having two barrels ef Figures 4 and 5 mounted-on-one and the same shaft
To the barrel f 18 attached a chain or rope m which can be connected by means
of a hook n to eyes o on the upper ends of the doors c
To the second barrel e is connected a hauling device g (cord or chain) which can
be connected by a hook h to a hauling device & (cord or chain) actuated by a motor
cylinder p or other suitable source of power and lying upon supporting 1ollers i in
the direction of the winch a.
The one end of this hauling device k is connected with the piston rod 9 of the
motor cylinder p, while the other end is suitably led over a guide roller 8 and has a
weight & suspended from it.
This is balanced by a similar weight t connected to the other end of the piston
rod q by a cord or chain passing over a roller &
The chain or cord is provided at intervals along its horizontal part with pins l
or other suitable devices for the attachment of the hooked end of the cord or
chain g.
The motor cylinder p with its piston rod q connected to the cord or chain k 18
shewn arranged horizontally at Figure 1, it can however be equally well arranged
in a vertical position, as indicated in dotted lines in that Figure
The action of the apparatus is as follows. If the piston rod is caused by the
admission of fluid pressure to the front end of the cylinder p to move to the left
hand from the position shewn at Figure 1 the chain or cord k will also be made to
travel in the same direction and will thereby exert a pull upon the cord or chain g
at whatever point this may be connected to it, such pull being transmitted to the

page_text: barrel e of the winch a; by the consequent rotation of barrel f the cord or chain m
will be wound up thereon and the door to which m is connected by its hook n will
be raised. During this operation it is necessary to hold the winch a in its position,
for which purpose it may for example be provided with a hooked rod u which is
hooked on to one of the oross bearers v of the line of rails & as shown at Figure 3..
For lowering the door the pressure fluid is discharged from the front of the
piston and, if necessary, admitted behind it so as to cause the piston and its rod to
travel to the right hand, whereupon the weight of the door will cause it to descend
in unwinding the cord or chain m from the barrel fand wind the cord or chain g
up on the barrel 6.
The notion of the motor oylinder p is controlled by suitable admission and
discharge valves for the fluid pressure, which may be actuated by hand either as
shewn at Figures 1 and 3 by rods w connected by suitable gear to the lever or
levers of the valve or valves, or by any other suitable means.
The valve gear may be so arranged that the motion of the piston rod, and
consequently the opening of the doors c can be stopped at any desired point
according to the particular door which requires to be opened the winch a to
moved along the rail to the point above the door the cord or chain g 18 then hooked
on to the cord or chain k and m is hooked on to the door d and the piston rod q is
actuated as described.
Having now particularly described and ascertained the nature of this
invention and in what manner the same 18 to be performed I declare that what
I claim is
Apparatus for opening and closing the doors of coke ovens consisting of a
travelling winch such as a having barrels connected, on the one hand, by hauling
devices such as gl to a motor such as a cylinder and piston rod q actuated by fluid
pressure, and on the other hand by a hauling device such as m n to the doors o of
the coke ovens, substantially as described.