Locks and Safes. The construction of locks; compiled from the papers of A. C. Hobbs, ... and edited by C. Tomlinson. ... To which is added a description of ... J. B. Fenby's patent locks, and a note upon iron safes. By R. Mallet |
Parole e frasi comuni
A. C. HOBBS action ÆSCHYLUS American lock applied arbitrators arrangement barrel Barron Bramah lock centre Charles Tomlinson Chubb Chubb's lock combination CONSTRUCTION OF LOCKS contrivance curtain cylinder described detector door double-acting employed escutcheon Exhibition false key false notches fastened fixed gatings groove Hobbs hole Illustrated ingenuity inserted instrument invention iron IVY LANE key-hole letter-lock levers lifted lock controversy lock-making locks and keys locksmith London Lower Austria main bolt manufacture mechanism Messrs metal motion movable Newell number of changes open the lock operation padlock parautoptic lock pass patent picking the lock pieces pipe placed plate position present pressed pressure principle proper key raised render revolving rings ROBERT MALLET safe Scott Burn screw secondary tumblers shew shewn shot sliders slides spring steel steps stud stump T. H. L. Leary tion true key tumbler-locks turned round unlocked W. D. Hamilton warded locks wheels Willenhall Wolverhampton