Firearms Technology Dumoulin Shotgun Trigger Mechanism Patent Lithograph 1898 Mechanical Innovation in Gun Design

Shotgun Patent Litho

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Dumoulin, F. Provisional Specification No. 2696, 1898 patent lithograph documenting a mechanical improvement to shotgun trigger systems during a period of rapid innovation in firearms engineering. Issued within the late nineteenth century patent system, the drawing records a proposed refinement to internal firing mechanisms, contributing to the study of industrial design, firearms technology, and the formalization of intellectual property in mechanical invention. Such patent documents functioned as both legal evidence and technical communication, establishing priority of invention while disseminating design concepts within competitive manufacturing environments.

Dumoulin, F. Provisional Specification No. 2696 for Improvement of a Shotgun Trigger Mechanism. February 2, 1898. Published by Malby & Sons, Photo Litho. Single sheet patent lithograph depicting detailed cross sectional views of the trigger assembly, illustrating the internal arrangement of components and their functional relationships. The right border notes: “The Drawing is a reproduction of the Original on a reduced scale,” indicating its role as an official reproduction for patent filing and review. The sheet was produced for submission within patent proceedings and for reference by examiners or competing inventors seeking to evaluate the claimed innovation.

Produced during an era of expanding industrial patent activity, this lithograph reflects the increasing standardization of technical drawing as a means of documenting and protecting mechanical invention. Firearms manufacturers and inventors relied on such specifications to secure legal rights while advancing incremental improvements in reliability and performance. Patent lithographs of this type were often working documents subject to limited retention, contributing to their relative scarcity in institutional collections. Light, even toning with faint reddish staining along the left edge; overall very good. A clear example of late nineteenth century patent documentation in firearms engineering.

Item #16578

Price: $550.00