Improvements in Parallel Rulers.
Year: 1892

page_text: Date of Application, 18th Nov., 1892
Complete Specification Left, 18th Aug., 1893-Accepted, 23rd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Parallel Rulers.
We, CHARLES HAIGH BREAR, of 9, Cliffe Terrace Bradford, in the County of
York, Accountant's Clerk, and ALEXANDER WILSON, of 57, Barkerend Road,
Bradford, aforesaid, Watch Maker, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in parallel rulers and its object is to
provide a ruler adapted to be used by draftsmen for fine accurate ruling as well as
comparatively rough ruling or ordinary office work, and also to provide a simple
device or arrangement for measuring or spacing the distance between lines to be
ruled.
For this purpose we employ a reversible fence or guide connected at each end by
links or arms to pins or their equivalent at the ends of the ruler and so arranged that
the roller is free to revolve in the ordinary way. The said fence is pivoted
between these arms and is provided with two distinct edges either of which may be
readily turned into position. One of said edges is arranged to lie closely against
the paper for fine ruling or fine work and the other is a rounded edge or anti-blotter
for ordinary office work.
To facilitate measuring or spacing the distance between the lines ruled
graduations or divisions are marked on one or both ends of the ruler and a
pointer or finger in connection therewith is formed on or connected to one or both
of said arms or links.
Dated this 17th day of November 1892.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Parallel Rulers.
We, CHARLES HAIGH BREAR, of 9, Cliffe Terrace, Bradford, in the County of
York, Accountant's Clerk, and ALEXANDER WILSON, of 9, Barkerend Road,
Bradford, aforesaid, Watch Maker, 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 parallel rulers and its object is to
provide a ruler adapted to be used by draftsmen for fine accurate ruling as well as
comparatively rough ruling or ordinary office work, and also to provide a simple
device or arrangement for measuring or spacing the distance between the lines to
be ruled.
For this purpose we employ a reversible fence or guide connected at each end
by links or arms to pins or their equivalent at the ends of the ruler and so arranged
that the ruler is free to revolve in the ordinary way. The said fence is pivoted
between these arms and is provided with two distinct edges either of which may be
readily turned into position. One of said edges is arranged to lie closely against
the paper for fine ruling or fine work and the other is a rounded edge or anti-
blotter for ordinary office work.
To facilitate measuring or spacing the distance between the lines ruled gradua-
tions or divisions are marked on one or both ends of the ruler and a pointer or
finger in connection therewith is formed on or connected to one or both of said
arms or links.

page_text: Reference is to be had 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, is a plan view of our improved ruler with the fine edge of the fence in
position for ruling.
Figure 2, is a similar view with the rounded edge in position for ruling.
Figure 3, is an end view of Figure 1.
Figure 4, is a cross section of the same.
Figure 5, is a cross section of Figure 2.
The ruler or cylindrical piece A has a link B loosely pivoted to each end by the
screws or their equivalent C, and the reversible fence E is pivoted by the screws F
between such links so that the fence is free to be turned to either position shown in
the drawings. The thin edge of the fence may be graduated in inches or the like
as shown in Figure 1.
Graduations H are preferably marked on the ends of the ruler A and pointers or
fingers J are formed on the links B to facilitate spacing the distance between the
lines ruled.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A ruler having a reversible fence pivoted between links connected to the ends
of the ruler, substantially as herein shown and described.
2. The combination with a ruler having a reversible fence, of a pointer or finger J
arranged in connection with graduations H, substantially as herein shown and
described and for the purpose specified.
Dated this 17th day of August 1893.
DRACUP & NOWELL,
Bradford, Agents.