Improvements in Perforating instruments for rorming raraner Lines in Stencils to be Employed in the Reproduction or Printing of Music.
Year: 1885

page_text: Improvements in Perforating instruments for rorming raraner
Lines in Stencils to be Employed in the Reproduction or
Printing of Music.
I DAVID GESTETNER of 9 Chequer Alley, Bunhill Row in the County of
Middlesex, Manufacturer, do hereby declare the nature of the said Invention for
IMPROVEMENTS IN PERFORATING INSTRUMENTS FOR FORMING PARALLEL LINES IN
STENCILS TO BE EMPLOYED IN THE REPRODUCTION OR PRINTING OF MUSIC to be
as follows:-
The invention has for its object the production of a perforating instrument for
forming parallel lines in stencils to be employed in the reproduction or printing of
music and relates more particularly to that class of stencils which are formed in
waxed paper by means of a small toothed wheel according to an invention for
which Letters Patent were granted to me dated June 3rd 1881 N° 2450.
For this purpose I form or fix a number of toothed notched or roughened wheels
of small diameter upon a single boss which I mount with capability of revolving
upon a shaft or axle carried by a suitable frame or I key or otherwise fix a number
of such wheels upon a shaft or axle which I mount, with capability of revolving, in
a frame.
The frame I attach to a suitable holder in order to facilitate the use of the
instrument.
By the aid of this instrument I am enabled to rule upon the stencil paper at one
operation the proper number of parallel lines to form a stave preparatory or subse-
quent to the music being written thereon, thus avoiding the necessity for ruling
each line separately as heretofore.

page_text: form of instrument shown at Figures 4 and 5 a number of separated toothed,
notched or roughened wheels a each formed with a boss a¹ and a hole therethrough
are mounted upon a shaft b by driving them thereon as shown in the drawings; or
they might be keyed thereon or otherwise fixed thereto, so as to revolve therewith.
The shaft 6 is mounted with capability of revolving upon centres b¹ formed by
the ends thereof and carried in bearings formed in the ends of the frame c. In this
case one end of the frame c is connected thereto by rivetting or otherwise in order
to facilitate the construction of the instrument.
Or instead of fixing a number of separate toothed, notched or roughened wheels a
upon a shaft so as to revolve therewith according to the arrangement herein last
described, such separate wheels might be allowed to revolve upon the shaft b in
which case the shaft would be fixed to the frame c in the manner described with
respect to Figures 1, 2 and 3. In the modification shown at Figure 6 a number of
toothed notched or roughened wheels a are formed upon a single boss a¹ in a
manner similar to that shown at Figures 1, 2 and 3 but instead of mounting such
boss upon a shaft or axle 6 the boss a¹ is formed with centres or axes b¹ and is
mounted with capability of revolving in a frame c of a similar construction to that
shown and described with respect to Figures 4 and 5.
By the aid of an instrument constructed according to my invention I am
enabled to rule upon the stencil paper at one operation the required number of
parallel lines to form a music stave preparatory or subsequent to the music being
written thereon thus avoiding the necessity for ruling each line separately as
heretofore.
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:
A perforating instrument consisting of a number of toothed, notched or roughened
wheels a mounted with capability of revolving in a frame c substantially as herein
shown and described and for the purpose stated.