An attempt toward obtaining invariable measures of length, capacity, and weight, from the mensuration of time / [John Whitehurst].

  • John Whitehurst
Date:
1792?]
Catalogue details

Licence: Public Domain Mark

Credit: An attempt toward obtaining invariable measures of length, capacity, and weight, from the mensuration of time / [John Whitehurst]. Source: Wellcome Collection.

    42/86 (page 14)
    * l *4 ] SECTION III. Concerning the Application of the Apparatus. It may not be improper to obferve, that it was found convenient to fix the apparatus in a diago- nal direction in the corner of a room, fo far detached from the walls as to allow fufficient room for one’s hand to pafs behind the frame, to fix or detach the apparatus as occafion may require. 2. The frame being connected to the walls at the upper and lower ends, renders it fufficiently per- manent. The brafs ruler R RR being fixed as before directed, and alfo the adjufting apparatus L, fig, i, plate II. together with the plate A, fig. 2, let the pendulum be fufpended upon, o o, fig. 1, its wire paf- fing through the chops of the moveable point of fufpen- fion c c. 3. As preparative to the menfuration of time, reft the pallats upon a proper fulcrum, and adjuft their 3 vibrations