Improvements in Scales for Thermometers and other Instruments.
Year: 1894

page_text: Date of Application, 26th June, 1894
Complete Specification Left, 25th Mar., 1895-Accepted, 26th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Scales for Thermometers and other Instruments.
EDWARD JONES (Dring & Fage) Scientific Instrument Maker and Contractor
to H.M. Government 145, Strand, London, do hereby declare the nature of this
invention to be as follows:-
A thermometer scale laid off and divided in the usual manner, but the figures are
placed on either side of tube & divisions, thus for 60° 6 is on one side and 0 on the
other of the tube and divisions, then on the left or right hand side of tube the
divisions are made from a slightly increased thickness of line over the lines on
opposite side to four or five times the thickness, or more, according to the require-
ments of the case and the openness or closeness of the scale, thus very large figures
can be used, producing with the thickly divided lines a very bold legible
thermometer suitable for all purposes. The fine lines on one side of the scale are
for accuracy of reading and the broad for legibility. This method of dividing is
applicable to scales other than thermometers.
Dated this 26th day of June 1894.
Improvements in Scales for Thermometers and other Instruments.
EDWARD JONES (Dring & Fage) Scientific Instrument Maker and Contractor
to H.M. Government 145 Strand, London 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, reference being made
to the drawing filed with my Complete Specification in which :-
Fig. 1 shows a thermometer scale laid off and divided in the usual manner but
the figures are placed on either side of the tube and divisions; thus for 60°, 6 is
place on one side and 0 on the other of the tube and divisions, then on the left or
right hand side of tube the divisions are made from a slightly increased thickness
of line over the lines on opposite side to four or five times the thickness or more
according to the requirements of the case and the openness or closeness of the
scale, thus very large figures can be used, producing with the thickly divided lines
a very bold legible thermometer suitable for all purposes.
The fine lines or divisions on one side of the scale are for accuracy of reading
and the broad for legibility. This method of dividing is applicable to scales other
than thermometers.
Figure 2, represents the method of dividing arcs, circles protractors and similar
scales.
Figure 3, represents the methods of dividing straight edges, scales, rules and the
like; thus in the case of mathematical scales, rules, protractors, divided ares, and
the like the divisions are continued throughout the fine divisions being at the edge
and broadened out at the other end; the broad part of division may be made
square, Fig. a, rounded Fig. b, round Fig. c, pointed Fig. d, diamond shape Fig. e,
or any combination of the several shapes, or any form most suitable to the
particular scale which will readily catch the eye and render it easily read.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
A scale of divisions, each division having a fine line for accuracy and a heavy
line for legibility the length width and shape to be regulated by the requirements
of the particular scale for which they are required.
Dated thie 25th day of March 1895
EDWARD JONES.