Improvements in Rulers.
Year: 1889

page_text: Date of Application, 13th Feb., 1889
Complete Specification Left, 13th Nov., 1889-Accepted, 14th Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in Rulers.
I SAM HAINSWORTH, of 88, Beckside Road, Lidget Green, Great Horton, in the
County of York, Overlooker, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in rulers for ruling straight or parallel
lines with an ordinary pen, and its object is to prevent such rulers becoming smeared
with ink so as to besmear the paper being ruled and also to generally facilitate the use
of such rulers.
The said improvements consist in providing a pivot at each end of the ordinary form
of ruler upon each of which a short arm is mounted and such arms are connected
together by a guide or shell of wood, metal or other suitable substance, preferably of a
concavo-convex section. The convex side of said shell thus forms a guide for the pen
and is drawn along parallel with the ruler which is preferably fitted closely against the
concave side.
The said arms are connected to said guide in any convenient manner, and when
they are formed of metal, vulcanite and substances of a similar nature they may be
made in one piece.
Dated this 12th day of February 1889
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Rulers.
1, SAM HAINSWORTH, of 88, Beckside Road, Great Horton in the County of York,
Overlooker, 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 relates to improvements in rulers for ruling straight or parallel
lines with an ordinary pen, and its object is to prevent such rulers becoming smeared
with ink so as to besmear the paper being ruled and also to generally facilitate the
use of such rulers.
The said improvements consist in providing a pivot at each end of the ordinary
form of ruler upon each of which a short, arm is mounted and such arms are con-
nected together by a guide or shell of wood, metal or other suitable substance,
preferably of a concavo-convex section. The convex side of said shell thus forms
a guide for the pen and is drawn along parallel with the ruler which is preferably
fitted closely against the concave side.
The said arms are connected to said guide in any convenient manner, and when
they are formed of metal, vulcanite and substances of a similar nature they may be
made in one piece.
In order to fully describe my invention reference is now made to the accompanying
sheet of drawings forming a part of this specification in which similar letters of
reference indicate corresponding parts in each of the figures.
Figure 1 represents a plan view of my improved ruler. Figure 2 is a cross
section of the same, and Figure 3 is an end view.
The cylindrical ruler of ordinary form A is provided at each end with a central
pivot B upon which are pivoted the arms C secured to the guide, shell or fence D.
It will be readily understood that the fence is drawn along parallel with the ruler A
and forms a convenient guide to the pen, and owing to its convex contour is not

page_text: liable to catch the ink from the pen or smear the paper. The fence D may be used
on either side of the ruler A thus one side of the ruler is always free if it is desired
to use it in the ordinary manner.
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 :
The combination with a ruler of a guide or fence, substantially as herein shown
and described and illustrated in the accompanying drawing.
Dated this 11th day of November 1889.
DRACUP & NOWELL,
Bradford, Agents.