Melville Fuller

“ The mechanism by which the draw-bar and the diagonal brace are pivoted to the car and fastened to the scraper is not referred to in this claim, although it is in other claims of the series. As the claim must be held to define what the patent-office has determined to be the patentee's invention, it ought not to be enlarged beyond the fair interpretation of its terms. It is true that elements of a combination not mentioned in a claim may sometimes be held included, in the light of other parts of the specification, which may be applicable ”

“ So much of the specification as is necessary to be quoted here states that 'the nature of this invention relates to an improvement in the construction of railway track cleaning devices, and the means of operating them, being more especially designed to be attached to horse-cars for the purpose of removing snow, ice, mud, and other obstructions from the rails, and immediately at the sides thereof ”