Improvements in folding articles of cutlery, surgical instruments, and the like / [Jean Nicolas Thouvenel-Michelin].

  • Thouvenel-Michelin, Jean Nicolas.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in folding articles of cutlery, surgical instruments, and the like / [Jean Nicolas Thouvenel-Michelin]. Source: Wellcome Collection.

    1/4
    Nc 16.631 A.D. 1806 Date of Application, 4th Sept., 1893 Complete Specification Left, 4th June, 1894—Accepted, 28th July, 1894 PROVISIONAL SPECIFICATION. ^Improvements in Folding Articles of Cutlery, Surgical Instruments, and the like. A communication from Jean Nicolas Thouvenel-Michelin, of Nogent, Haute Marne, in the Republic of France. I, Alfred Julius Boult of 323 High Holborn in the County of Middlesex, Chartered Patent Agent, do hereby declare the nature of this invention to be as follows :— The object of this invention is to provide a new and improved spring, for cutlery, £ surgical instruments, and like articles which are made to fold or otherwise close, such as scissors, pocket knives, bistouries, etc. Such spring forms an integral part of the branches, handles or blades, from which it is inseparable, being formed in the body of the article. Its outer end is 1 formed with a little heel adapted to catch and lock the opened part at the moment 10 of use. i The following are some of the advantages of the improved spring. First, its extreme strength, in comparison with the work of resilience which it has to effect, which makes it unbreakable notwithstanding its great rigidity. Further, the great facility which is afforded for maintaining the cleanliness of 45 the articles to which it is applied, inasmuch as all parts are accessible and can be thoroughly cleansed; this is notably the case with pocket-knives whereof the cheeks are only joined together at the extremities, and the remainder being exposed makes it perfectly easy to keep them clean and in good order. In a pair of folding scissors the springs are formed out of the solid on the -j20 branches or handles and are adapted to fit into recesses formed in the solid butt-ends of the blades when in their operative position. When the scissors are folded as when ready for the pocket the springs are not in engagement with the recesses and inoperative. In a folding or pocket knife the spring is formed in the solid at the butt-end of '25 the knife-blade, and when the blade is fitted to the haft the spring on the blade fits into a recess formed in a preferably steel connecting-piece rivetted to the two cheeks by two or more pins. Dated this 4th day of September 1893. W. P. THOMPSON & BOULT, .30 London, Nottingham, Liverpool, and Manchester, Agents for the Applicant. COMPLETE SPECIFICATION. Improvements in Folding Articles of Cutlery, Surgical Instruments, and the like. 35 A communication from Jean Nicolas Thouvenel-Michelin, of Nogent, Haute Marne, in the Republic of Franee. I, Alfred Julius Boult of 323 High Holborn in the County of Middlesex, Chartered Patent Agent, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and 40 ascertained in and by the following statement:— The object of this invention is to provide a new and improved spring, for cutlery \P»iee