Improvements in Copying Machines.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Copying Machines.
I, GOTTLIEB WENZEL, of 30, Elisabethstrasse, Berlin, Germany, Inventor, do
hereby declare the nature of this invention to be as follows: —
My invention relates to improvements in the construction of copying machines,
the object being to provide an apparatus of this kind to be employed in the con-
struction of fronts of building large sized figures, groups of figures and the like
and adapted to enable the operator to reproduce any irregularly shaped body.
The invention consists in providing a pair of suitable levers, pivotally secured
on stationary brackets, to the free ends of which a second pair of levers is pivotally
secured. The free ends of the second pair of levers carry the journals of the
revolubly mounted tool-holder supporting the slidable tool-shaft casings. The
arrangement is most simple in construction and enables the operator to work
with any number of tools in accordance with the size of the article or figure to
be copied or reproduced. Suitable power or movement transmission devices are
provided on said brackets and tool-holder, for imparting motion to said tool-
shafts as may be required.
1000
ruary 1099.
H. D. FITZPATRICK,
100, Wellington Street, Glasgow, Agent.
I, GOTTLIEB WENZEL, of 30, Elisabethstrasse, Berlin, Germany, Inventor, 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 novel construction in machines for carving or cut-
ting statuary from stone or other material, the object being to provide an appara-
tus of this kind especially adapted to be employed in the construction of the
fronts of buildings, for large sized figures and groups of figures and for the
production, ornamentation and finish of any irregularly shaped body of any
material.
The invention consists in providing levers pivoted together and adapted to
swing on a horizontal shaft and carrying rotatably mounted tool-holders, the tool-
shaft casings of which being adapted to be easily and readily interchanged, so as
to enable the operator to work with different tools in accordance with the size.
and character of the article to be produced, and said tool shaft-casings being held
on

page_text: in proper relative positions by means of suitable stay-bolts, as more clearly and
fully pointed out and claimed hereinafter.
In order that the invention may be the more readily understood, I have illus-
trated one form of same in the accompanying explanatory drawings wherein :-
Fig. 1, is a side elevation of the improved machine;
Fig. 2, is a broken sectional view on substantial line A, B, C, D, of Fig. 3;
Fig. 3, is a front view of the machine with parts shown in section;
Fig. 4, is a plan view with parts shown in section;
Fig. 5 and 6, show diagrammatical views of different positions of the parts in
operation.
In the drawings like letters refer to like parts throughout all the figures.
In carrying out my invention, I employ two pairs of levers a, a, b, b¹, each pair
pivotally attached together by means of pins c, c', respectively. The inner ends
of levers a, a¹ are rotatably mounted on studs e, e¹, journaled in stationary brac-
kets d, d¹, and the outer ends of levers 6, 6₁ carry the tool-holder f rotatably
mounted thereon. The inner ends of levers b, 61 are provided with set screws'g, g',
g, g, engaging sleeves h, h, h, h', around studs e, el whereby said levers and
therefore the tool-holder may be moved sideways and held in adjusted positions
by said set screw.
The tool-holder f of any suitable form, carries a plurality of laterally movable
tool-shaft casings i, held in proper relative position by means of stay-bolts k
as shown in Fig. 4. The bearings of the tool-shaft are rotatably mounted on
screw-pins m and joined by connecting rails n, n' whereby the same may be moved
sideways all together. The latter movement of the tool shaft bearings and the
movement of the tool-holder f about its own axis, enable the operator to give the
rotating tools o and the guide pin p, any desired position and to perform the most
difficult intersections. The side movement of tool shaft casings on tool holder f,
in combination with the swinging of levers b, b', allows of laterally moving the
tools into any position, and the side movement of levers b, 61, in combination with
the axial rotation of levers a, a¹, on studs e, e¹ enables the operator to move
tools o and guide-pin p to any point of a very large space with even a small
sized machine.
The tools o may be driven in any convenient manner, but I preferably arrange
the power transmission parts as follows:-The pulley 9 on stud e is driven from
any suitable power which motion is transmitted by pulley r and a suitable belt
(see dotted lines in Fig. 1), to pulleys on stud c, and therefrom by pulley t
(on stud c) to pulley u opposite pulley v, which transmits the movement to
pulley w, integral with rollers actuating pulleys y on the tool-shafts, Fig. 3.
The levers, a¹, may be counter-balanced by means of a suitable weight (not
shown) attached to one end of cable extending over an idler (not shown) located
above the bracket d, the other end of said cable being attached to the end of
said levers a, a¹. For balancing levers, 6, 61 and tool-holder f, I have provided
bars 2,2 and 3, 31 respectively.
If it is desired to employ the machine in the construction of large sized figures
this may be done as indicated in Fig. 5 of the accompanying drawings. If the
work is to be performed in a horizontal direction, the operator will place a table
under the machine (Fig. 6) and if it is desired to reproduce figures in this posi-
tion, the table is to be provided with suitable centering stocks between which
the model will be held in position and turned, as required.
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
1 claim is:
1. In a machine of the character described, the combination with pivoted
levers, of the rotatably mounted tool-holder, a plurality of removable tool shaft
casings adapted to be shifted along said tool-holder and held in proper relative

page_text: position, means for holding them in position, and tool-shaft bearings rotatably
mounted in said casings, substantially as set forth.
2. In a machine of the class described, the combination of suitably supported
levers pivoted together, rotatably mounted tool-holders supported by said levers,
a plurality of tool shaft casings slidably supported on said tool holder, tool shaft
bearings rotatably mounted in said casings, and means for rotating tools held
in said bearings, substantially as set forth.
3. The improved copying machine, constructed and arranged substantially
as described and shown in the accompanying drawings.
1
0
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.