New or Improved Lift or Hoist for Raising and Lowering Hides or Skins and the like.
Year: 1895

page_text: Date of Application, 8th Oct., 1895
Complete Specification Left, 7th July, 1896-Accepted, 3rd Oct., 1896
PROVISIONAL SPECIFICATION.
New or Improved Lift or Hoist for Raising and Lowering Hides or
Skins and the like.
I, LORENTZ ALBERT GROTH of 88 Neckar Strasse, Stuttgart in the Kingdom
of Wurtemberg, German Empire, Consulting Engineer, do hereby declare the
nature of this invention to be as follows:-
-
This invention relates to a lift or hoist more especially applicable for raising and
lowering hides or skins, but which is also applicable to raising and lowering other
articles which require to be dealt with under similar conditions to those prevailing
in the manipulation of hides and skins during the processes of tanning and finishing
etcetera.
Hitherto, when lifts or hoists have been employed for raising and lowering hides
or skins they have generally been provided with cages or platforms of much smaller
dimensions than the hides or skins to be dealt with, because if the cages or platforms
were adapted to receive full sized hides flatwise they would have to be of such
dimensions that the entire lift would be altogether too large and unwieldy for
practical use. It has therefore been customary to use moderate sized cages or
platforms, and to fold the hides or skins to suit them, while some hides, particularly
those which have been tanned for belting, harness etc., and which cannot be folded,
can only be transported from place to place by men, carrying them on sticks, on
their shoulders, which is a very expensive operation. The object of my present
invention is to provide a lift or hoist whereby hides or skins can be raised or
lowered without folding them and laying them flatwise on a platform or on the
floor of a cage.
For this purpose I arrange two rotating shafts one at the lower end and the
other at the upper end of the space through which the hides or skins are to be
raised or lowered. On each of those shafts I fix two sprocket or chain wheels at a
suitable distance apart and so placed that those on the upper shaft stand fair over
or in line with those on the lower shaft, and over these sprocket or chain wheels
I pass endless chains, cords, or straps, so that when the two shafts are set in rotatory
motion by any suitable means two chains, cords or straps parallel to one another
move upwards on one side of the wheels and downwards on the other side. On
the endless chains, cords, or straps are secured, at suitable distances apart, hooks
or other bearers adapted to carry, resting in or on them, the ends of movable
wooden or other bars which carry the hides or skins hung over them by the middle
of their lengths or widths as the case may be, or otherwise fastened thereto.
It will now be understood that in order to raise or lower hide or skins by a lift
or hoist constructed in this way one or more of the hides or skins is or are hung
over or fastened to a wooden or other bar, and this bar, with the hides or skins on
it, is then placed with its ends resting on two of the hooks or bearers which are
situated opposite to one another on the endless chains, cords, or straps, and are
raised or lowered by the motion of such chains, cords or straps, according to
whether the bar is hung on the ascending or descending side of the latter. The
number of loaded bars that can be put on will of course depend upon the distance
apart of the hooks or bearers, and this distance will depend upon the strength of
the chains, cords or straps employed. It will be obvious that the hooks or bearers
to support the bars and hides or skins when descending, must be placed in the
reverse position to those which support them when ascending.

page_text: By the arrangements above described the floor space occupied by the lift or hoist
is only little more in one direction, than the length of the bars carrying the hides
or skins and in the other direction little more than the diameters of the sprocket or
chain wheels plus the hooks or bearers at each side, and that folding the hides or
skins, except such folding as is required to hang them over the bars, as well as the
great and expensive hand labour are avoided.
It will be evident that lifts or hoists of this description are applicable for raising
or lowering anything that can be rested on the hooks or bearers of the chains, cords
or straps by means of a bar or other similar instrument.
Dated this 8th day of October 1895.
New or Improved Lift or Hoist for Raising and Lowering Hides or
Skins and the like.
I, LORENTZ ALBERT GROTH, of 88 Neckar Strasse, Stuttgart, in the Kingdom
of Wurtemberg, German Empire, Consulting Engineer, 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:-
This invention relates to a lift or hoist more especially applicable for raising and
lowering hides or skins, but which is also applicable to raising and lowering other
articles which require to be dealt with under conditions similar to those prevailing
in the manipulation of hides and skins during the processes of tanning and finishing,
etcetera.
Hitherto when lifts or hoists have been employed for raising and lowering hides
or skins they have generally been provided with cages or platforms of much smaller
dimensions than the hides or skins to be dealt with, because if the cages or platforms
were adapted to receive full sized hides without being folded they would have to
be of such dimensions that the entire lift would be altogether too large and
unwieldy for practical usc. It has therefore been customary to use moderate sized
cages or platforms, and to fold the hides or skins to suit them, while some hides,
particularly those which have been tanned for belting, harness, and so forth, and
which cannot be folded, can only be transported from place to place by men
carrying them on sticks on their shoulders, which is a very expensive operation.
The object of my present invention is to provide a lift or hoist whereby hides or
skins can be raised or lowered without folding them and laying them flatwise on a
platform or on the floor of a cage.
In the accompanying sheet of drawings Figure 1 is a front elevation and Figure 2
a side elevation showing diagrammatically a lift or hoist constructed in accordance
with my invention.
A, A' are two rotating shafts one at the lower end and the other at the upper
end of the space through which the hides or skins are to be raised or lowered.
These shafts are arranged to rotate in suitable fixed bearings, not shown in the
drawings. On each of these shafts are fixed two sprocket or chain wheels BB'
respectively at a suitable distanco apart, and so placed that those on the upper
shaft A stand fair over or in line with those on the lower shaft A, and over these
sprocket or chain wheels are passed endless chains, cords or straps C, so that when
the two shafts A A' are set in rotatory motion by any suitable means the two
chains, cords or straps C move parallel to one another upwards on one side of the
wheels and downwards on the other side. On the endless chains, cords or straps C

page_text: are secured, at suitable distances apart, hooks D or other bearers adapted to carry,
resting in or on them, the ends of movable wooden or other bars E which carry
the hides or skins F hung over them by the middle of their lengths or widths as
the case may be, or otherwise fastened thereto, for example the hides or skins may
be fastened on the bars E by means of nails driven through their upper edges into
the bars, or by strings passed through holes in the upper edges of the hides or
skins and tied round the bars.
It will now be understood that in order to raise or lower hides or skins by a lift
or hoist constructed in this way, one or more of the hides or skins is or are hung
over or fastened to a wooden or other bar E, and this bar with the hides or skins
on it, is then placed with its ends resting on two of the hooks or bearers D which
are situated opposite to one another on the endless chains, cords, or straps C as
shown clearly in Figure 1, and are raised or lowered by the motion of such chains,
cords or straps, according as the bar is hung on the ascending or descending side
of the latter. The number of loaded bars that can be put on will of course depend
upon the distance apart of the hooks or bearers D, and this distance will depend
upon the strength of the chains, cords or straps employed, the number of hides or
skins to be raised or lowered in a given time, and upon other circumstances. It
will be obvious that the hooks to support the bars and hides or skins when descending
must be placed in the reverse position to those which support them when ascending,
and for this purpose it is sometimes convenient to make the hooks double as shown
by way of example at D' in Figure 2.
By the arrangements above described the floor space occupied by the lift or hoist
is only little more, in one direction, than the length of the bars carrying the hides
or skins, and in the other direction little more than the diameters of the sprocket
or chain wheels plus the hooks or bearers at each side, and that folding the hides or
skins, (except such folding as is required to hang them over the bars) as well as the
great and expensive hand labour are avoided.
It will be evident that lifts or hoists of this description are applicable for raising
or lowering anything that can be rested on the hooks or bearers of the chains, cords
or straps by means of a bar or other similar instrument.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The new or improved lift or hoist for raising and lowering hides or skins and the
like, which consists of an upper and a lower rotating shaft, sprocket or chain wheels
mounted on the said shaft, and chains, cords, or straps provided with hooks or
bearers adapted to receive and support bars on or to which the hides, skins or
other like articles are hung or fastened, combined and operating substantially as
described.
Dated this 4th day of Inly 1806