Summary

Stanley Matthews Ives v. Sargent — Opinion of the Court

It is not obvious that the additional device referred to was a spring, and there is nothing in the language to suggest, what is clearly and fully expressed in the amended specification, that 'the pitman and spring, E, Fig. 3, is a straight, hard-drawn wire, and is connected to the bolt and crank by suitable pivotal connections.' So that in the original description there is nothing to show of what material the pitman is made so as to operate as a spring, and there is no assertion in it of its performing the double function of pitman and spring.
Source: Wikisource

Stanley Matthews Ives v. Sargent — Opinion of the Court

Said hub, D, when in position for use, extends up through said slot, b7, so that its square or similarly shaped central hole is in a line with transverse groove, b6, of inner casing, B, and opposite holes, a, a, of outer casing, A. The prismatic shank of the key is passed through said holes and groove, and operated as usual to shoot or draw the bolt.
Source: Wikisource

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