10 ENGLISH BOOKS RELATING TO «EIDOGRAPH»
Discover the use of
eidograph in the following bibliographical selection. Books relating to
eidograph and brief extracts from same to provide context of its use in English literature.
1.13 Eidograph 1.14 EIDOGRAPH The eidograph is also used for the same
purposes as the pentagraph. The pentagraph requires four supports on the paper
and has numerous joints; its action is apt to be unsteady. In contrast, eidograph
has ...
2
The draughtsman's handbook of plan and map drawing: ...
"The Eidograph was invented by Professor Willis in 1821. It is a most ingenious
and exact instrument, for many purposes superior to the pantograph, within the
range of its working powers, which however, may be considered to be limited to ...
3
Practical Geometry, Linear Perspective, and Projection: ...
... the paper, to diminish the friction. Another instrument for the same purpose has
been invented by Professor Wallace of Edinburgh, called the Eidograph ; it is
more elaborate and expensive, but far superior to the Pentagraph in the precision
...
4
Professional Papers of the Corps of Royal Engineers. ...
This he effected in the eidograph (see Plate I.), which consists of three stout bars
solely supported by a central fixed stand, over which the instrument works. The
figure shows the bar A carrying the tracer, and the bar B carrying the pencil-
holder ...
Great Britain. Corps of Royal Engineers,
1890
5
Professional Papers by the Corps of Royal Engineers ... ...
This he effected in the eidograph (see Plate I.), which consists of three stout bars
solely supported by a central fixed stand, over which the instrument works. The
figure shows the bar A carrying the tracer, and the bar B carrying the pencil-
holder ...
Great Britain. Corps of Royal Engineers,
1890
6
Professional Papers of the Corps of Royal Engineers
Professor Willis, in 1821, suggested dispensing with the supporting wheels, and
thus eliminating the friction they produced upon the surface of the paper. This he
effected in the eidograph (see Plate, I.), which consists of three stout bars solely ...
Great Britain. Army. Royal Engineers,
1890
In contrast, eidograph has only one support upon which the entire instrument
moves steadily and regularly. All the joints of the eidograph consist of fulcrums
fitting in accuratelyground bearings,the motionaround these fulcrums being
capable ...
8
A Descriptive Treatise on Mathematical Instruments: Their ...
To adjust or ascertain if the eidograph is in adjustment is very simple, from the
reason that, when the arms are parallel the adjustment is perfect for all
proportions. The manner of ascertaining this is as follows. Place all the verniers
at 0, which ...
William Ford Stanley,
1873
9
A Descriptive Treatise on Mathematical Drawing Instruments: ...
As stated, the eidograph would not properly reduce below one-third. In its
improved form, to be described, it will reduce in all proportions to one-eighth or
even fairly to one-ninth. The changes and additions to effect this, consist of
supporting ...
William Ford Stanley,
1878
10
Instruments of Science: An Historical Encyclopedia
The most successful and long-lived of these new designs was the eidograph
devised by the Edinburgh professor of mathematics William Wallace in 1821.
Like the pantograph, the eidograph incorporated tracing, drawing, and fixed
points, ...
Robert Bud, Deborah Jean Warner,
1998