Improved Apparatus for Copying Carvings in Stone, Wood, or the like.
Year: 1899

page_text: Date of Application, 8th July, 1899-Accepted, 12th Aug., 1899
COMPLETE SPECIFICATION.
Improved Apparatus for Copying Carvings in Stone, Wood, or
the like.
I, ANTON VON SUCHORZYNSKI, of Lohestrasse 7, Breslau, in the German Empire,
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 new or improved apparatus by means of which
Sculptures, carvings and the like may be copied or reproduced.
The improved apparatus is provided with a table which always maintains a
horizontal position and which may carry the article to be copied and suitable
slabs of stone wood or the like from which the copies have to be formed, or it may
carry the working tools and the blocks or slabs may be fixed.
In the accompanying drawings to which I will hereinafter refer Figure 1 is a
view in elevation of one form of apparatus.
Figure 2 is a similar view of a modified form of apparatus, and Figure 3 shows
this same modified form in plan.
Figure 4 is a sectional view of a detail to a larger scale.
The apparatus suspended from a ceiling or other suitable part a by the
rods b the upper ends of which are hung by balls while the lower ends are
connected to the table by similar balls joints e. The table d can thus be moved
easily about but will always be in a horizontal plane and parallel to the ceiling a.
Fixed to the table d by the pivots are a number of sets of "lazy-tong" levers f
the lower ends of which carry the plate g. This plate may carry the piece of
sculpture, carving or the like which has to be copied together with the blocks of
material to be cut to form the copies or reproduction, while the suitable rotary or
other tools are carried by a fixed table i. Or alternatively, the tools may be
carried by the plate 9 and the carving and the blocks may be secured to the
tablo i.
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In the apparatus shewn in Figure 1 the whole arrangement has been moved to
the left, while that represented in Figure 2 is illustrated in its natural and
vertical position. When moved laterally the plate d is raised somewhat but the
lazy-tong" levers compensate for this and allow the plate g to maintain its
position with regard to the table i. The free ends of the levers are connected to
levers which are fulcrummed at 7 and the outer ends of which are counter-
weighted.
With the arrangement shewn in Figure 1 the "lazy-tongs" have not only to
permit the vertical motion required for following the outline of the article to be
copied but they have also to allow the vertical motion due to the lateral move-
ment of the complete apparatus. The modified machine shewn in Figure 2 has
been designed in order that the amount of work required from the "lazy-tongs
may be reduced and so that independent vertical motion may be obtained.
"
As before, the apparatus is suspended by rods & from the ceiling a but this time
the lower ends of the rods are attached to an extra plate which is provided
with a central sleeve or opening 2. See also Figure 4. Through this sleeve

page_text: is passed a tube 7 in such a manner as to be capable of sliding therein. The lower
end of the tube is secured to the table d, and its upper end is furnished with a
ball which bears against a plate fixed a little below and parallel to the
ceiling a. Springs are secured to the plate o and have their upper ends
attached to extensions from the tube y. It will thus be seen that as the
apparatus is moved obliquely the plate & will not rise or fall but will remain
in the same horizontal plane. As in the previous example the plate gis
suspended from the plate d by counterweighted "lazy-tong" levers f. The
plate y may carry either the tools or the blocks of material and the copy. It
has secured to it the central rod or tube which passes up into the tube q.
This latter tube is slotted for the passage of the end of a lever v which engages
with the rod or tube u. The other end of the lever carries a rod and handle w
by means of which the table g may be raised or lowered. The plate d may bo
balanced by means of weights on the ends of cords or chains ..
"
The lateral movement of the apparatus causes the plate to be raised more or
less above its original horizontal plane. The plate d partakes of the lateral
motion but is maintained in its original plane by the plate n. Lateral motion.
is also imparted to the plate g which may be raised or lowered, according to the
dimensions of the article to be copied, by means of the handle w. Thus, the
lazy-tongs are only required to permit sufficient motion to follow the outlines
of the carving or the like.
"
With the apparatus shewn in Figure 2 the plate 9 may also be caused to
maintain its position in its original horizontal plane by fixing the handle.
When so fixed the lateral motion of the machine would enable level surfaces to be
produced.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed; I declare that what
I claim is:-
1. An apparatus for copying or reproducing pieces of sculpture, carving or
the like, consisting essentially of a plate o̟ which is suspended from the ceiling
by means of ball jointed rods and a series of "lazy-tong" levers and which
either carries the cutting tools or the blocks from which the copies have to be.
formed and the original, substantially as and in the manner hereinbefore described
and as illustrated by the accompanying drawings.
2. An apparatus for copying or reproducing pieces of sculpture, carving or the
like, consisting of a table which is suspended by ball jointed rods, a second table
which partakes of horizontal movement with the first but is always maintained in
the same horizontal plane, and a third table for carrying the tools or the blocks
and the original and which is suspended by "lazy-tong" levers from the second
table, all constructed and arranged substantially as and in the manner herein-
beforo described and ás illustrated by Figures 2 and 3 of the accompanying
drawings.
3. Apparatus for copying or reproducing pieces of sculpture carving or the
like, constructed and arranged substantially as hereinbefore described and as.
illustrated by the accompanying drawings.
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JatenL
THIS
Ten day of July A.D. 1899.
W. E. HEYS & SON,
Agents for the Applicant. -