Improvements in or relating to Compasses and Ruling Pens or Devices.
Year: 1899

page_text: Date of Application, 18th May, 1899 -Accepted, 12th Aug.. 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Compasses and Ruling Pens or Devices.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of Middle-
sex, Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed, as communicated to me by Johann von
Pallich, Assistant at the Physical Institute of the Graz University, of Graz,
Austria, and Fritz Knaus, Merchant, of Ruckerlberg 59, Graz, Austria, to be
particularly described and ascertained in and by the the following statement:-
The object of this invention is to produce an instrument for use in ruling
lines having as its essential feature the arrangement on a cross-bar of one or
more receptacles for colours, the lower, open, Hat or round end or ends of said
receptacle or receptacles being closed by means of an inserted brush or brushes.
The cross-bar is connected either with the hinged part of a holder, adjustable
in a sleeve, or casing, furnished with a sharp or blunt end, or connected directly
with the said holder. The ends of the sleeve, or casing, or the points of compass-
arms, adjustable on the cross-bar, are thus capable of use as single or double
compasses or as a drawing pen, with which lines or circles can be drawn at the
same time in one or more colours.
The invention is illustrated in the accompanying drawings, in which Fig. 1
is a front elevation of the general arrangement, Fig. 2 a side elevation of the
holder; and Fig. 3 a perspective view of the cross-bar connected with the
hinged part of the holder, and having colour receptacles and a compass arm
arranged thereon. Fig. 4 is a front elevation of another form of the instrument,
and Fig. 5 is a side elevation of same. The same parts are lettered to corres-
pond in all the figures.
In the form shown in the drawings, a brush a is placed in each of the
chargers b, which serve as receptacles for the colours.
The hair of the brush a is inserted in the bottom, open, flat or round end of
the charger b, so that the whole opening is closed up and only such a quantity
of the colour can percolate, as is required to be used in the forming of the lines.
If the brush be strongly pressed out, the flow of the colour will be retarded.
In the upper part of the charger, an elastic clamp c is arranged, which firmly
holds the inserted brush.
The several chargers 6 with their corresponding brushes, are arranged alter-
nately on the front and back of the cross-bar d in such manner that they may
be brought into contact with one another at will, that is, according to the
required width of the lines to be formed. With the use of different colours
polychromatic line is produced, the several colours of which, being simul-
aneously applied, run into one another without any sharp division, whereby a
very beautiful colouring effect is obtained.
On the cross-bar d one or more of such chargers 6 may be arranged and secured
by adjustable clamps e. This cross-bar is also furnished on the one side with
moveable clamp f in which the end of a compass arm is adjustable in a
ertical direction and, on the other side this cross-bar d is provided with on
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page_text: extension piece 4, which can be pushed into the hollow hinged part i of a
handle, which latter is adjustable in a sleeve or casing k. The sleeve, or
casing may be furnished with a sharp or a blunt end m."
In the form illustrated in Figs. 4 and 5, the chargers 6 are likewise arranged
adjustably on a cross-bar d by means of clamps e. The cross-bar in this con-
struction is connected with a handle n in such a manner that the upper and lower
edges of the cross-bar are free, so that the chargers can be pushed along over
the middle of the cross-bar. This arrangement comprises, further, two compass-
arms o which are attached to the common or mutual bar d in a manner similar to
that described above with reference to Fig. 1. These compass arms o are also
adjustable on the bar d by means of clamps, or screws and can be moved in
a vertical direction in sleeves or casings.
The two compass-arms form two compass centres for the brushes, so that,
thereby, two continuously overlapping circles of different radius can be drawn
without the necessity of putting down the instrument.
In either of the forms before described an additional broad brush may be
introduced and arranged in such a manner that the colours flow from the
brushes a on to this broad brush, and these, after being thoroughly mixed, on
the edges, or borders, of the several colour zones, flow from the broad brush on
to the surface on which the drawing is made. The width of the lines and curves
depends, principally on the number of the brushes fixed adjacent to one another,
and also, on the height at which the compass points are adjusted as, upon the
openings, or mouths of the chargers being brought nearer to the drawing sur-
face, the brushes will make a thicker line.
By the arrangement of blunt instead of sharp, ends on the compass arms, the
instrument is converted into a drawing pen. Several of such sharp or blunt
ends may be applied on a second bar placed at right angles to the bar d whereby
the variety of the lines, and curves, may be still further increased.
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-
An instrument for use in ruling lines, the essential feature of which is the
arrangement adjustably on a cross-bar of one or more receptacles for colour,
the bottom, open, flat or round end of each of which receptacles is closed by an
inserted brush, the cross-bar being connected either with the hinged part of a
holder, adjustable in a sleeve, or casing, furnished with a sharp or a blunt end,
or connected directly with the said holder, the ends of the sleeve, or casing, or
the points of the compass-arms, adjustable on the cross-bar, being thus capable
of use as a single or double compass, or as a drawing pen, with which lines or
curves, can be produced in one or more colours at the same time, the width
of the lines being dependent on the number of the chargers employed and the
higher or lower position of the ends of the brushes in relation to the drawing
surface substantially as herein described.
F. W. GOLBY,
36, Chancery Lane, London, W.C.