Improvements in Cylindrical Rulers or Instruments for Ruling and in their Mode of Construction.
Year: 1887

page_text: Date of Application, 2nd May, 1887.
Specification Accepted, 10th June, 1887.
Improvements in Cylindrical Rulers or Instruments for Ruling
and in their Mode of Construction.
I, JOHN SHETTLE, of High Street, in the Town and County of Haverfordwest,
Bank Manager 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 :-
:
I make a cylinder of wood, metal or other suitable material or combination of
materials and turn down or otherwise reduce each end to form a pin or axle for the
cylinder to revolve on in suitable holes in the end pieces of what I term the ruling
bar hereinafter to be described or instead of turning down or otherwise reducing
the ends of the cylinder a hole may be bored along its axis and a rod passed through
it to form an axle: or a hole may be bored at each end of the cylinder to receive a
pin or screw of wood, metal, or other suitable material or combination of materials to
form the said pins or axles: or the pins or axles may be made with a shoulder or
socket, and screwed on or otherwise attached or fitted to the ends of the cylinder :
or instead of the said pins or axles being attached in either of the foregoing or in any
other way to the cylinder, they may form part of or be attached to the end pieces of
the ruling.bar, in which case a hole is made in each end of the cylinder or a plate of
some kind attached to the ends of it to receive the said pins or axles.
The said ruling bar consists of a strip of wood, metal, or other suitable material
or combination of materials with end pieces which may either form part of the said
ruling bar or may be made separately and screwed on or otherwise affixed to it, and
it is of a hollow or concave form on the inside, that is to say, on the side nearest the
cylinder and of a convex shape on the outside or the side farthest from the cylinder:
and it travels, that is to say, it is drawn or pushed by the cylinder on the surface
being ruled, according as the said cylinder may be rolled backward or forward as it
can be by the fingers, in the same manner and with the same facility as any ordinary
cylindrical ruler: but to prevent the said bar in any way impeding the movement of
the fingers on the cylinder, it should not be made of a greater height than the cylinder
itself, or be allowed to project over it or the said bar may be perfectly flat on one or
both sides, or be grooved, fluted or of a polygonal or other shape.

page_text: The end pieces of the ruling bar may be made of any shape and form and of any
suitable material or combination of materials provided that that portion of them
immediately below the pin or axle upon which the cylinder turns is not allowed to
project sufficiently to touch the surface being ruled.
The said apparatus is for the purpose of ruling straight or parallel lines and for
preventing the fingers or surface being ruled from being soiled by the ink fluid or
colouring matter that may be used for such ruling. The cylinder as before stated is
moved by the fingers like any ordinary cylindrical ruler and the ruling bar being
fixed to it by the pins or axles, is drawn backward or forward according to the motion
of the cylinder and forms as steady a surface as an ordinary cylindrical ruler for the
pen or ruling instrument to pass along and effectually retains as it is intended to do
any ink fluid or colouring matter being used with which it may come in contact.
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
1. The particular shape or shapes and construction of the ruling bar as herein
before described.
2. The mode or manner in which the said ruling bar is made to travel on the paper
or surface being ruled, the said bar being worked backward and forward as before
described by the cylinder which alone is touched by the fingers. All kinds of rulers
that have, so far as I am aware of, been invented for the same purpose or purposes
are different to mine, and have the lower edge or under side of the ruling bar, guard
or shield by some means or other kept from or above the surface being ruled whereas
in my Invention the ruling bar touches and travels upon such surface.
3. That this apparatus as herein before described is a neater, simpler, and more
convenient instrument than any other known to me to be designed or used for the
same purpose.
T: 0
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1007

page_text: This Specification was, upon the 24th day of March 1888, amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
COMPLETE SPECIFICATION.
Improvements in Cylindrical Rulers or Instruments for Ruling
and in their Mode of Construction.
I, JOHN SHETTLE, of High Street, in the Town and County of Haverfordwest,
Bank Manager 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 :-
I take or make a cylinder or roller of wood, metal or other suitable material or
combination of materials and turn down or otherwise reduce each end to form a pin
or axle for the cylinder or roller to revolve on in suitable holes in the end pieces of
what I term the ruling bar hereinafter to be described or instead of turning down
or otherwise reducing the ends of the cylinder or roller a hole may be bored along
its axis and a rod passed through it to form an axle: or a hole may be bored at each
end of the cylinder or roller to receive a pin or screw of wood, metal, or other
suitable material or combination of materials to form the said pins or axles: or the
pins or axles may be made with a shoulder or socket, and screwed on or otherwise
attached or fitted to the ends of the cylinder or roller: or instead of the said pins or
axles being attached in either of the foregoing or in any other way to the cylinder
or roller, they may form part of or be attached to the end pieces of the ruling bar, in
which case a hole is made in each end of the cylinder or roller or a plate of some
kind attached to the ends of it to receive the said pins or axles.
The said ruling bar consists of a strip may be made of wood, metal, or other suitable
material or combination of materials with end pieces which may either form part of
the said ruling bar or may be made separately and screwed on or otherwise affixed to
it, and it is may be of a hollow or concave form on the inside, that is to say, on the
side nearest the cylinder or roller: and of a convex shape on the outside or the side
farthest from the cylinder or roller: and it travels, that is to say, it is drawn or pushed
by the cylinder or roller on the surface being ruled, according as the said cylinder or

page_text: roller may be rolled backward or forward as it can be by the fingers, in the same
manner and with the same facility as any ordinary cylindrical ruler or the said bar
may be flat on one or both sides or be grooved fluted or of a polygonal or other suitable
make or shape and may be of any reasonable height: but to prevent the said bar it in
any way impeding the movement of the fingers on the cylinder or roller, it should
not be made of a greater height than the cylinder or roller itself, or be allowed to
project over it or the said bar may be perfectly flat on one or both sides, or be
grooved, fluted or of a polygonal or other chape.
:
The end pieces of the ruling bar may be made of any suitable shape and form and
of any suitable material or combination of materials provided that that portion of
them immediately below the pin or axle upon which the cylinder or roller turns is not
allowed to project sufficiently to touch the surface being ruled.
The said apparatus is for the purpose of ruling straight or parallel lines and for
preventing the fingers or surface being ruled from being soiled by the ink fluid or
colouring matter that may be used for such ruling. The cylinder or roller as before
stated is moved by the fingers like any ordinary cylindrical ruler: and the ruling
bar being fixed to it by the pins or axles, attached to it by the end pieces in either of
the ways herein before described, is drawn made to travel backward or forward (on the
surface being ruled) according to the motion of the cylinder or roller: and forms as
steady a surface as an ordinary cylindrical ruler for the pen or ruling instrument to
pass along and effectually retains as it is intended to do any ink fluid or colouring
matter being used with which it may come in contact accidentally receive from the pen
or other ruling instrument.
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
1. The particular shape or shapes and construction of the ruling bar as herein
before described.
2. The mode or manner in which the said ruling bar is made to travel on the paper
or surface being ruled, the said bar being worked backward and forward as before
described by the cylinder which alone is touched by the fingers. -All kinds of rulers
that have, so far as I am aware of, been invented for the same purpose-or-purposes
are different to mine, and have the lower edge or under side of the ruling bar, guard
or shield by some means or other kept from or above the surface being ruled whereas
in my Invention the ruling bar touches and travels upon such surface.
3. That this apparatus as herein before described is a nenter, simpler, and more
convenient instrument than any other known to me to be designed or used for the
same purpose.
The combination & adjustment of a cylinder or roller with a ruling bar of the
particular shape or shapes and construction hereinbefore described and referred to.
Dated this 29th day of April 1887.