Samuel Blatchford

“ If the claims of the reissue are limited, as they must be, to the specific mechanism described in the specification, it is very clear that the defendant's apparatus does not infringe. It is incapable of being used to light a series of burners. ”

“ The relative location of the sector-wheels, f and n, on the valve-spindle is such that with the arm, O, on the periphery of [its] the sector-wheel, f, the arm, Q, will be off the periphery of its sector-wheel, n, and vice versa; and the purpose of the said sector-wheels is to turn their respective arms, O, Q, so as to bring about a bearing between their respective finger-pieces, h, h2, and the lower pins, l, l2, and also to allow the springs applied to the said arms, O, Q, to react and bring their finger-pieces into contact with the upper pins, m,2. ”

“ R is a ratchet-wheel secured to gas-valve spindle back of inner sector-wheel, n; and § a spring pawl hung to lever, H, and arranged from the movement of such lever to act upon the ratchet-wheel, R, to turn it in the direction of the arrow, Fig. ”

“ The otehr eight claims consequently must have been intended to embrace some invention not covered by the three claims of the original patent; and it is apparent that the sole purpose of the reissue was to add claims which would cover all electric gas-lighting apparatus in which one electric circuit was made use of for turning the gas-cock and igniting the gas; and it was not until after Tirrell's apparatus of 1880 had been put into public use that the discovery was made that the claims of patent No. ”

“ No. 130,770, August 20, 1872; No. 184,807, November 28, 1876; No. 206,057, July 16, 1878; and Nos. 230,589 and 230,590, July 27, 1880. When the inventions were made for which the two patents of November 28, 1871, and the two patents of July 27, 1880, were granted, Tirrell was in the employ of George F. Pinkham, to whom, as his assignee, the four patents were granted. ”