Abstract
THE article on the Brussels Chronograph (NATURE, vol. xxvi. p. 107) induces me to send a brief description of the chronograph of this observatory, which may be taken as representing the form usually adopted by the best American makers, Alvan Clark and Sons, Fauth and Co., Stackpole and Brothers, &c. The accompanying engraving gives a good general idea of it. The scale may be obtained by remembering that the iron base plate is 211/2 inches by 111/2 inches. The barrel is 14 inches long by 7 inches in diameter. The paper used is 231/8 inches by 13 inches which provides for a lap at the line of junction. There is room for the observations of two hours and forty minutes. The weight employed is fifteen pounds, and usually a double pulley is used to diminish the fall.
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
HOLDEN, E. The Washburn Chronograph . Nature 26, 368–370 (1882). https://doi.org/10.1038/026368b0
Issue Date:
DOI: https://doi.org/10.1038/026368b0