Year: 1887

page_text: Date of Application, 18th Apr., 1887
Complete Left, 22nd Dec., 1887
Complete Accepted, 3rd Feb., 1888
I, RICHARD SCHULZ Director of the ship- and machine-building Company
"Germania" at Tegel near Berlin, do hereby declare the nature of this invention to
be as follows
The present invention relates principally to hoisting machines used for hoisting the
ashes and other articles from the interior of ships. In the hoisting machines used
for this purpose up to the present it is necessary to reverse the steam engine operating
the winding drum, either by hand or by levers and rods operated by the pail or a catch
on the rope, when the pail has reached its lowest or highest position.
In the first case it is necessary that the man in charge should attentively watch the
course of the pail to stop the engine at the right moment to prevent damage, in
the other case the levers and rods are often a troublesome and cumbersome addition.
The object of this invention is to avoid these disadvantages by designing an engine
with automatic reversing gear thereby being independent from the attention of the
man in charge and avoiding the levers and rods thus simplifying the operation. The
present construction permits moreover of the hoisting height being adjusted by
adjusting the catches, a feature which is of the utmost importance for large ships with
several decks. The principal advantage in this machine, in comparison with the other
known automatic stopping devices for hoisting machines, is that the steam distributing
organ itself is cut off to stop the engine, while in the other constructions the steam
was cut off by a special valve thus affecting the action of the machine and exposing
the stopping mechanism itself to a permanent danger of breakage.
The hoisting machine may consist of an engine with one or more cylinders provided
with reversing gear of any convenient system for the driving of the winding drum.
By a worm on the shaft of the winding drum gearing with a worm wheel on the
reversing shaft the reversing lever is brought to the stopping point and the engine
stopped after a certain number of revolutions according to the desired hoisting
height.
The winding drum is driven by suitable gearing from the main shaft of the steam
engine. On the shaft of the winding drum is fixed a worm gearing with a worm
wheel. This worm wheel and a segment with a concentric slot in which are two

page_text: adjustable studs are made in one piece or rigidly fixed to each other. If the reversing
lever of the engine is moved to one side the engine is started and will drive the
winding drum with the worm on its shaft which latter will turn the worm wheel with
the segment until one of the studs in the concentric slot of the latter has moved the
reversing lever to the stopping point when the engine will stop. The reversing lever
can now be moved to the other side to reverse the engine until the other stud has
brought the reversing lever back to the stopping point and again stops the engine.
The hoisting height can be altered at will by adjusting the studs in the concentric
slot of the segment and it is therefor also not necessary to shorten the rope when it
has stretched through use.
This automatic stopping mechanism for the steam distributing organ avoids all
intermediate manipulations in comparison with a special cut off mechanism and it also
secures a safe action of the machine.
The above described arrangement can be used with various reversing gears or link
motions for instance Stephenson's, Gooch's, Allan's, Hackworth's and others, and it is
further applicable to hoisting machines of various kinds and sizes.
+1 1005

page_text: I, RICHARD SCHULZ, Director der Schiff and Maschinenbau Actien Gesellschaft
Germania of Tegel near Berlin in the German Empire, 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 :-
The present invention relates principally to hoisting machines used for hoisting the
ashes and other articles from the interior of ships. In the hoisting machines used for
this purpose up to the present it is necessary to reverse the steam engine operating
the winding drum either by hand or by levers and rods operated by the pail or a catch
on the rope, when the pail has reached its lowest or highest position.
In the first case it is necessary that the man in charge should attentively watch the
course of the pail to stop the engine at the right moment to prevent damage, in the
other case the levers and rods are often a troublesome and cumbersome addition.
The object of this invention is to avoid these disadvantages by designing an engine
with automatic reversing gear thereby being independent from the attention of the
man in charge and avoiding the levers and rods, thus simplifying the operation. The
present construction permits moreover of the hoisting height being adjusted by
adjusting the catches, a feature which is of the utmost importance for large ships with
several decks. The principal advantage in this machine, in comparison with the
other known automatic stopping devices for hoisting machines is that the steam
distributing organ itself is cut off to stop the engine, while in the other constructions
the steam was cut off by a special valve thus affecting the action of the machine and
exposing the stopping mechanism itself to a permanent danger of breakage.
The hoisting machine may consist of an engine with one or more cylinders, provided
with reversing gear of any convenient system, for the driving of the winding drum.
By a worm on the shaft of the winding drum gearing with a worm wheel on the
reversing shaft the reversing lever is brought to the stopping point and the engine
stopped after a certain number of revolutions according to the desired hoisting
height.
In the accompanying drawings:-
Figs. 1 and 2 represent side elevations and
Figs. 3 and 4 end views (fig. 3 partly in section) of hoisting machines with link
motion.
Fig. 5 is a detail of the segment with its adjustable studs.
The winding drum bis driven by suitable gearing from the main shaft a of the steam
engine. On the shaft c of the winding drum is fixed a wormd gearing with a worm wheel e.
This worm wheel and a segment with a concentric slot in which are two adjustable
studs g and h, are made in one piece or rigidly fixed to each other. If the reversing
lever i of the engine is moved to one side to the position & the engine is started and
will drive the winding drum b with the worm d on its shaft which latter will turn the
worm wheel e with the segment f until the stud h in the concentric slot of the latter

page_text: has moved the reversing lever to the stopping point when the engine will stop. The
reversing lever i can now be moved to the other side to the position to reverse the
engine until the other stud g has brought the reversing lever back to the stopping
point and again stops the engine. The hoisting height can be altered at will by
adjusting the studs g and h in the concentric slot of the segment fand it is therefore
also not necessary to shorten the rope when it has stretched through use.
This automatic stopping mechanism for the steam distributing organ avoids all
intermediate manipulations in comparison with a special cut off mechanism and it also
secures a safe action of the machine.
The above described arrangement can be used with various reversing gears or link
motions for instance Stephenson's, Gooch's, Allan's, Hackworth's and others, and it is
further applicable to hoisting machines of various kinds and sizes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is
In a hoisting engine with reversing gear an automatic stopping device comprising
a segment such as operated by the engine and provided with adjustable studs which
move the reversing lever to the stopping point, thus automatically stopping the engine
at the desired hoisting height substantially as described and illustrated in the
accompanying drawings.
T
JL: 05111007