A NEW MEASURING IMPLEMENT.

Marlborough Daily Times, Volume II, Issue 144, 6 August 1880, Page 1 (Supplement)

A NEW MEASURING IMPLEMENT.

A remarkable machine was described at a recent meeting of the Socicte d’Eneouragement pour ITudnstrie Xationalc, at Pans, eilted prolilogranh, because when in use it traces mechanically on paper the outlines of the ground on which' it travels. It is described in one of our foreign contemporaries as a small carriage mounted on two wheels, drawn by one man, and attended by another, who marks the levels at the proper places; and underneath hangs an iron rod -\\iu.i a largo bad at its lower end, servin'*as a pendulum, fiiis pendulum maintains a constant vertical position, while the machine inclines in one direction or the other aceoniing ns it ascends or descends a slope. To tirn upper end of the rod is fitted a pencil, which marks on a sheet of paper the ups and downs of the country traversed, whether on an ordinary road or across trackless fields. Ihe exact profile is thus recorded to a given scale. At the same time one of the wheels, I acting the part of chain bearer, measures and indicates the distances travelled throughout the survey. _ For surveyors and others engaged in levelling operations, this machine would appear to he eminently serviceable, and there is talk of its being made use of in a new general survey of France contemplated by the government.