Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 361
as at e in the side view. When the trigger is pulled with the requisite force, the spring de-scends along the side of the guide d, the hammer strikes the cap at h,and immediately slips to the right into the notch e, by which meansthe vent is instantly comeatable to be stopped, pricked, and primed.… … Mercurial Dynamometer. 251 Sir,—The drawing now sent, represents the model of a steam car-riage, which was invented by my father in 1784, and was exhibitedby him to the Professors of the University, and other scientific gen-tlemen in Edinburgh, in 1786. The opinion entertained of the practicability…
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