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eBook details

• Title: Manning and Another v. Cape Ann Isinglass & Glue Co. and Others
• Author : United States Supreme Court
• Release Date : January 07, 1883
• Genre: Law,Books,Professional & Technical,
• Pages : * pages
• Size : 70 KB

Description

This was a suit brought by the appellants, John J. Manning and Caleb J. Norwood, to restrain the infringement by the appellees of letters patent dated January 7, 1873, issued to the appellants and W. N. Manning, as assignees of the inventor, James Manning. By the subsequent assignment of W. N. Manning the appellants became vested with the title to the entire patent. It is well known that the swimming bladders or sounds of certain fishes are largely composed of that variety of gelatin called isinglass. The sounds are usually found in the market in a dry and hard state. They are manufactured into insinglass by a mechanical operation, which consists in passing the macerated sound successively between several sets of rollers, the first set kneading the sounds into a homogeneous sheet, and the subsequent sets squeezing and elongating the sheets into the ribbons of isinglass known to commerce. The invention covered by the patent sued on was for 'an improvement in the manufacture of isinglass from fish-sounds.' The specification of the patent declared as follows: 'In the manufacture of ribbon isinglass from fish-sounds it is customary to feed the softened and moist or macerated sounds to and between feed and compressing rollers, by which the viscid substance is compressed and joined and formed into a continuous sheet. Notwithstanding the constant application of cold water into the rolls, the substance adheres tenaciously to the roll and accumulates thereupon, and has to be cut away therefrom; an operation which is very slow and laborious, and productive of imperfect sheets.

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