Improved Apparatus for Copying or Reproducing Sculpture.
Year: 1895

page_text: Date of Application, 28th Jan., 1895-Accepted, 28th Jan., 1896
COMPLETE SPECIFICATION.
Improved Apparatus for Copying or Reproducing Sculpture.
We ALEXANDER WENZEL, Engineer of Wallner-Theaterstrasse 26–27,
RICHARD BERG, Lawyer of Friedrichstrasse 208, and FEDOR BERG, Banker of
Königgrätzerstrasse 9, all in Berlin in the Empire of Germany, 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 apparatus intended for mechanically and easily copying
or multiplying works of sculpture, especially large statues and the like in marble,
sandstone or any other suitable material, without such copies or reproductions
losing in artistic value.
This apparatus is shown in the annexed drawing in which :--
Fig. 1 is a front elevation.
Fig. 2 a cross section on the line A-B of Fig. 1.
Fig. 3 is a section on the line C-D of Fig. 2 and
Figs. 4 and 5 illustrate a modification in the construction.
Upon the rails & the carriage w is placed in which two double armed levers h
firmly fixed by cross-stays t are pivotally arranged on the shaft z. so as to be
enabled to perform a circular motion around said shaft.
At the lower ends of these levers h the forks g are fixed which carry between
them the rollers r. Within the forks the shafts u are displaceable longitudinally
and rotatably and between these shafts the working mechanism proper is
mounted.
The shafts u carry flanges f to which the flanges f¹ are fixed. The latter are
firmly connected by means of rods i and two rods v also are fixed in the flanges f¹
which rods v carry the guide puppet k and one or more working puppets k¹ of any
suitable construction.
At one of the flanges f¹ an electro-motor e may be fixed, the shaft a of which is
connected with another shaft m in such a way that both form one whole.
The shaft m at its other end is journalled in the second flange fl and carries the
belt pulleys p located to correspond to the working puppets . Thus the rotary
movement of the electro-motor e through the shafts m and x and the belt pulleys p
is transmitted to the working tools n of working puppets k¹.
As the shafts u are rigidly connected with the whole working mechanism, so
every displacement or turning of these constituent parts effects equally every part,
so that the working puppets k¹ must of necessity follow every movement of the
guide puppet k.
The rotatability of the double armed levers h in co-operation with the
displacement of the carriage w permits the guide and working puppets to operate
at every position of height, as is illustrated in Fig. 2 in dotted lines.
But as likewise the guide and working puppets can be turned in any desired
position, it will easily be seen that a sculpture such as a statue (or upright figure)
to be copied can be worked from in every direction and this by the aid of a
proportionately small machine.
To obtain an easy movement of the whole apparatus the different essential parts
are counterbalanced by weights c and d. The apparatus is suspended in a suitable
manner.
The modification represented in Figs. 4 and 5 allows of executing the above
described movements in another manner.

page_text: The two double armed levers are in this instance suspended from the shaft
by means of the screws ¹ and instead of the forks g and rollers r bearings gare
provided in which the shafts u are suspended by means of screws u¹. The
stays t connecting the levers h are omitted so that the whole construction is
simplified.
Z
The double armed lever h, the shaft z and the shafts u rigidly connected by the
working mechanism thus form a parallelogram which is rotatably arranged around
the shaft and is capable of being displaced laterally on the shaft z so that the
shafts u with the working mechanism can turn around the shaft z and are likewise
laterally displaceable, whereby the working mechanism can at the same time be
displaced in the vertical and horizontal direction.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The apparatus for copying or reproducing works of sculpture, in which the
working tools n with their actuating mechanism are mounted on a shaft u which
latter is rotatably and displaceably suspended in a rotatable frame (hrt w 2)
supported by wheels.
2. A method of construction of the said apparatus in which the levers / shafts z
and shafts u are arranged so as to form a parallelogram hanging on points z¹ and u¹
for the purpose of the displacement in lateral and vertical directions of the working
mechanism.
3. A method of construction of the said apparatus in which the actuation of the
working tools n is performed by means of an electro-motor e actuating a shaft m
arranged in conjunction with the shaft u substantially as and for the purpose
specified.
Dated this 28th day of January 1895
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents to the Applicants.