A New Device or Apparatus for Cutting Out Circular Discs or Patterns.
Year: 1899

page_text: A New Device or Apparatus for Cutting Out Circular Discs or
Patterns.
I, CLEMENT ALFRED SMITH, of Hay Mill Farm, Coventry Road, Birmingham,
in the County of Warwick, Electrician, do hereby declare the nature of my said
invention to be as follows:-
My invention has for its object a new device or apparatus for cutting out cir-
cular discs or patterns by which means any unskilled person may easily and
quickly cut out accurate circular discs or patterns such for instance as photo-
graphic prints and the like or discs of glass, celluloid, vulcanite, or other material
in a simple and effective manner.
In carrying my invention into practice I form my apparatus in two main parts
consisting of a perpendicular and a horizontal limb. The perpendicular limb
or rod is made at its base with a fine point and above this point is formed an
enlargement with a hole preferably square formed at right angle to the per-
pendicular rod and through this hole the horizontal rod or limb passes and is
free to move or slide therein. The upper end of the perpendicular rod is provided
with a loose knob or handle for holding the apparatus. Formed at or adjust-
ably attached to one end of the horizontal rod is a cutter wheel carrier in which
the cutting disc or wheel is free to revolve and at or near the same end of this
horizontal rod on the upper side is attached a loose knob or handle for guiding
or putting pressure upon the cutter when cutting out discs. A locking screw
or its equivalent is provided in the enlargement through which the horizontal
rod passes so as to hold the said rod. in position according to the radius of the
disc required. When cutting glass discs a diamond carrier or holder is substi-
tuted for the cutter carrier. In some cases supporting arms or stays may be
attached to the perpendicular limb having friction wheels or their equivalents at
their ends. A movable centre piece preferably of glass is provided for the
pointed end of the perpendicular limb to work or move in or upon.
Dal 10th dose of Anonst 1200
a
CLEMENT ALFRED SMITH,
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.
D

page_text: A New Device or Apparatus for Cutting Out Circular Discs or
Patterns.
I, CLEMENT ALFRED SMITH, of Hay Mill Farm, Coventry Road, Birmingham,
in the County of Warwick, Electrician, do hereby declare the nature of my
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:.
My invention has for its object a new device or apparatus for cutting out cir-
cular discs or patterns by which means any unskilled person may easily and
quickly cut out accurate circular discs or patterns such for instance as photo-
graphic prints and the like or discs of glass, celluloid, vulcanite, or other material
in a simple and effective manner.
In carrying my invention into practice I form my apparatus in two main parts
consisting of a perpendicular and a horizontal limb. The perpendicular limb
or rod is made at its base with a fine point and above this point is formed an
enlargement with a hole preferably square formed at right angle to the per-
pendicular rod and through this hole the horizontal rod or limb passes and is
free to move or slide therein. The upper end of the perpendicular rod is provided
with a loose knob or handle for holding the apparatus. Formed at or adjust-
ably attached to one end of the horizontal rod is a cutter wheel carrier in which
the cutting disc or wheel is free to revolve and at or near the same end of this
horizontal rod on the upper side is attached a loose knob or handle for guiding
or putting pressure upon the cutter when cutting out discs. A locking screw
or its equivalent is provided in the enlargement through which the horizontal
rod passes so as to hold the said rod in position according to the radius of the
disc required. When cutting glass discs a diamond carrier or holder is substi-
tuted for the cutter carrier. In some cases supporting arms or stays may be
attached to the perpendicular limb having friction wheels or their equivalents at
their ends. A movable centre piece preferably of glass is provided for the
pointed end of the perpendicular limb to work or move in or upon. The hori-
zontal rod may be graduated in inch or metre or other suitable scale measure-
ment.
4
In order to more clearly describe my invention reference is had to the accom-.
panying sheet of illustrative drawings, of which Fig. 1 is a perspective elevation
of the complete apparatus constructed according to this invention. Figs. 2,
and 3, are transverse views of the parts E and B, of Fig. 1, respectively taken
along the horizontal rod B.
Of Fig. 1, I shew at L the perpendicular limb or rod which is reduced in dia-
meter at its upper end to form a spindle and shoulder for the loose knob or
handle K to freely turn upon. At E is shown the enlargement or hub provided
with a square hole formed at right angle to the perpendicular limb L, through
which hole the horizontal rod B slides. The horizontal rod is set or locked to
any desired radius within range of the apparatus, as indicated on the scale and
that may be required between the point P and cutting wheel W, by means of
the locking screw S. The base of the enlargement or hub has screwed into it
or otherwise secured a fine point of hard material upon which the apparatus as
a whole revolves. The cutting wheel W, is mounted free to revolve in a suitable
carrier or bearing C, which carrier is adjustably attached by a small screw,
lock-nut, or the like to the underside and at one end of the horizontal rod B.
On the upper side of B is fixed the loose guiding knob or handle H, it being

page_text: secured in position by a loosely fitting rivet or its equivalent upon which the
said knob or handle is free to turn.
In Fig. 2, I shew the square hole 1) formed centrally in the enlargement or
hub E and at right angle to its axis. Fig. 3 is drawn to shew the cutting
wheel W broadwise and its carrier C as adjustably attached to B by a screw
which can be removed if required to sharpen the cutting wheel, or substitute a
diamond holder.
I provide a circular glass disc or centre piece shewn in section in Fig. 1, at G,
of any convenient diameter with a central pivot hole partly drilled or cut through
to receive the fine point P in which it revolves.
The operation of the apparatus is as follows:-In the case of cutting out cir-
cular discs or patterns from photographic prints, parchment, paper, or the like,
the material to be cut is first placed upon a sheet of glass, or metal, or other
suitably hard surface. Then the glass centre piece G, is placed upon this and
the central pivot hole made to coincide with any predetermined point or mark
on the material. Having adjusted the horizontal rod B to the required radius
and locking same tight with screw S, the pointed end P of the apparatus is then
put into the central hole of glass centre piece and with one hand the operator
will hold firmly the loose knob K, keeping the limb L perpendicular and with
the other hand take hold of and apply pressure to the loose guiding handle H,
imparting motion to the horizontal rod and cutting wheel. When cutting out
circular discs or patterns from glass, celluloid, metal foils, or the like, the glass
centre piece G may be provided with a seating of thin rubber or other suitable
material cemented or otherwise attached to its lower surface to prevent it from
slipping.
.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
1. A new device or apparatus for cutting out circular discs or patterns from
flat materials, consisting of two main parts a perpendicular and a horizontal
limb adjustably attached together with a locking screw, a suitable handle and
cutting tool attached to one end of the horizontal limb and adapted to turn about.
a point as centre in or upon a circular glass centre pièce substantially as herein
described and for the purpose specified.
2. In a new device or apparatus for cutting out circular discs or patterns from
flat materials, comprising a perpendicular limb as L, fitted with a loose knob K,
and having an enlargement E, with square hole D, through which hole the hori-
zontal rod B, can slide but adjustably set by the locking screw S, the cutting
tool C, attached to one end of the horizontal rod is caused to rotate about a fine
point P, in or upon a glass centre piece G, by means of the handle H, substan-
tially as herein described and illustrated by the accompanying drawings.
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