Improvements in Instruments or Apparatus for Ruling Lines.
Year: 1892

page_text: Date of Application, 31st Dec., 1892
Complete Specification Left, 9th Sept., 1893-Accepted, 18th Nov.. 1893
PROVISIONAL SPECIFICATION.
Improvements in Instruments or Apparatus for Ruling Lines.
I FRANCOIS ERNEST BARDON, of Sortiers in the Republic of France, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention for improvements in instruments or apparatus for ruling lines,
has for its object to provide an instrument or apparatus by means of which several
lines can be ruled at once and of any desired pitch or distance apart.
An instrument constructed according to this invention is principally made
up of:
1st. A pitch cylinder provided with grooves separated from each other by level
strips and which grooves diverge on a line parallel to the axis of the cylinder.
The cylinder may be a hollow metal one, or in wood with a metallic covering, or in
any other suitable substance.
2nd. Pencil carriers provided with a little projecting pin engaging with slight
friction in the grooves of the cylinder. To each groove is a corresponding pencil
carrier, except in the first groove from one end of the cylinder, which receives a
guide piece hereinafter described.
3rd. Two small steel rods passing laterally through the pencil carriers and
serving as a support thereto.
4th. A cross piece with two vertical end pieces which carry the cylinder pivots
and the ends of the said steel rods.
5th. A guide descending almost to the level of the pencil points and formed by
a piece movable about a pin fixed by a nut to another piece which is, with the
pencil carriers, traversed by the steel rods and provided with a small projecting
pin engaging in the first groove from the end of the pitch cylinder.
6th. An shaped rule, the vertical side of which may be divided into convenient
parts.
7th. A wooden handle fitted to a cross piece connected to the axis of the pitch
cylinder.
8th. A circular piece fixed to the said cross piece by means of a screw and
serving to ensure the rigidity of the steel rods which pass through the lower part
of the said circular piece as also the pencil carriers.
The peucils consist of small holders constructed of two cylinders, one exterior
and one interior, forming the holder for the lead.
The second cylinder may from underneath be easily withdrawn from and replaced
in the first cylinder for the purpose of extending the lead. The lead holders have
free play in the cylinders of the pencil carriers which form nearly a right angle
with the part carried by the steel rods. Small springs which bear on the head of
the lead-holder give a great elasticity to the points of the pencils and allow them
all to touch the paper, even though they might not be of exactly the same length.
By the aid of a divided milled disc the pitch cylinder can be turned in either
direction as desired to vary the pitch of the pencils.
To rule a page with any number of lines and with predetermined spacing it is
sufficient to turn the milled disc until the required division on the graduated dial
is reached.
When ruling ink lines the leads are replaced by lining pens.
Dated this 31st day of December 1899
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.

page_text: I, FRANCOIS ERNEST BARDON of Sortiers, in the Republic of France,
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 for improvements in instruments or apparatus for ruling lines has
for its object to provide an instrument, or apparatus by means of which several
lines can be ruled at once and of any desired pitch or distance apart.
In the accompanying sheet of illustrative drawings
Figure 1 is a plan of a ruling instrument constructed according to this invention.
Figure 2 is a vertical section at C-D Figure 1.
Figure 3 is a development of cylinder A B Figure 1.
Figure 4 is an elevation looking at end A.
Figure 5 is an elevation looking at end B.
Figure 6 is a view of details of pencils.
Figure 7 is a plan, elevation and side view of the guide and of a pencil carrier.
Figure 8 is a side and' back view of a liner for music paper and adapted to the
pencil carrier in place of the pencil.
of 5 mm.
The instrument is principally made up of 1st. A cylinder A B provided with
grooves e of about 2 mm. in width (inches) separated from each other by level
strips. These grooves diverge, that is with a commencing separating distance
(inch) they diverge on a parallel line to the axis of the cylinder up
to 10 mm. (inch). 2nd. Pencil carriers g provided with a little projecting pin p
engaging with slight friction in the grooves of the cylinder. To each groove is a
corresponding pencil carrier, except in the first groove from the end B of the
cylinder, which receives a guide piece m hereafter described. 3rd. Two small steel
rods v passing laterally through the pencil carriers and serving as a support thereto.
4th. A crosspiece t with two vertical end pieces which carry the cylinder pivots and
the ends of the steel rods. 5th. A guide m descending almost to the level of the
pencil points and formed by a piece of iron movable about a pin fixed by a nut to
the piece which is, with the pencil carriers, traversed by the steel rods, and
provided with a small projecting pin engaging in the first groove from the end B.
6th. A square, shaped, the vertical side of which about 0.15 m. in length (6 inches)
may be divided into centimeters and millimetres; or any ruler may be employed,
but by preference one flat and forming the straight edge on which rests the guide m
beforementioned.
This ruler being of any kind and not forming part of the line tracer has not been
shown on the annexed drawing.
7th. A wooden handle F fitted to the crosspiece t. 8th. A circular piece u fixed
to the crosspiece by means of a screw and serving to ensure the rigidity of the
steel rods which pass through the lower part of the said circular piece as also the
pencil carriers.
The peucil carriers g have in front a hollow cylinder g' solidly fixed thereto and
in which is slipped from the top a hollow carrier a of smaller diameter carrying
inside a lead holder tube b split at the lower end to clip the lead c. The lower
part of the tube b being larger than the tube a it is pushed into the hollow carrier a
and consequently grips the lead tightly.
The carrier a is only kept in the carrier g' by the pressure of the spring r.
For tracing lines on music paper all the lead holders are taken out of the fixed
hollow carriers g¹ and on the first is fixed a pen with five nibs & the part
which forms a spring and clips the carrier g¹ sufficiently tightly to maintain its
of

page_text: 5. A guide provided with a pivot fitting in the first groove and traversed by the
two supporting rods, the guide resting on a suitable square.
6. A handle fixed to the cross piece and used for the manipulation of the
instrument.
7. A circular piece fixed to the cross piece and ensuring the rigidity of 5
the supporting rods.
8. A drawing pen with five nibs for ruling music paper.
Dated this 8th day of September 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.