Download or read book 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 written by A. C. HOBBS (of New York.) and published by . This book was released on 1868 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locks and Safes the Construction of Locks Comp from the Papers of A C Hobbs written by Charles Tomlinson and published by . This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Construction of Locks Compiled from the Papers of A C Hobbs of New York written by A. C. Hobbs and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rudimentary Treatise on the Construction of Locks written by A. C. Hobbs and published by . This book was released on 1853 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Construction of Locks written by A. C. Hobbs and published by . This book was released on 1868 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locks and Safes written by A. C. Hobbs and published by . This book was released on 1868 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Treatise on Fire and Thief proof Depositories and Locks and Keys written by George Price (of Wolverhampton.) and published by London : Simpkin, Marshall. This book was released on 1856 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Construction of Locks and Safes written by A. Hobbs and published by Albert Saifer. This book was released on 1982 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rudimentary Treatise on the Construction of Locks written by A. C. Hobbs and published by . This book was released on 1868 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locks and Safes written by Alfred Charles Hobbs and published by . This book was released on 1970 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The National Union Catalog Pre 1956 Imprints written by and published by . This book was released on 1981 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rudimentary Treatise on the Construction of Locks written by A. C. Hobbs and published by . This book was released on 2020-10-24 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacture of locks, and a consideration of the mechanical principles involved in their construction and security, have never yet been treated with any degree of fulness in an English work. Lock-making has occupied a large amount of ingenuity, and lock-patents have been obtained in considerable number, though not always, we are satisfied, with a commensurate return for the expense incurred,--but lock-philosophy (if so it may be designated) has not been largely attended to.And yet it may safely be said that much which is both mechanically and commercially important is comprised in a lock. Every improvement in the manufacture of iron, steel, and brass--that is, in the tool-making and machine-making processes--may be made to reflect its light on the lock-manufacture; the stamping, the casting, the planing, the slotting, the screw-cutting, the polishing of metals,--all, in proportion as they are improved, impart some of their aid to the lock-maker. Then, in the finer kinds of locks, the works are so delicate as to approach to the nicety of clockwork; thereby combining the manipulative skill of a talented artisan with the rougher mechanical work of the smith. The principles of mechanical science are also appreciated by many lock-makers. The lever, the inclined plane, the eccentric, the cam, the screw, the wheel and pinion, the ratchet, the spring,--all are brought to bear on the internal mechanism of locks, frequently in many novel combinations.

Download or read book Handy Lists of Technical Literature written by and published by . This book was released on 1890 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Security Mechanical Locks written by Graham Pulford and published by Butterworth-Heinemann. This book was released on 2007-10-17 with total page 613 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-Security Mechanical Locks comprehensively surveys and explains the highly technical area of high security locks in a way that is accessible to a wide audience. Well over 100 different locks are presented, organized into 6 basic types. Each chapter introduces the necessary concepts in a historical perspective and further categorizes the locks. This is followed by detailed 'how it works' descriptions with many pictures, diagrams and references. The descriptions are based on actual dissections of the real locks. The scope is limited to key operated mechanical locks, thus keyless combination locks and digital locks are not covered. The book does not deal with routine locksmithing topics such as installation and servicing of locks. The sensitive area of picking and bypassing of locks is dealt with only at a high level without giving detailed information that would be unacceptable in the wrong hands. * Comprehensive coverage of over 100 different types of 19th and 20th century key-operated locks, unified in a simple classification scheme * Detailed operating principles - clear 'how it works' descriptions * Manipulation resistance rating for each lock on a scale of 1 to 5

Download or read book General Catalogue of Printed Books to 1955 written by British Museum. Dept. of Printed Books and published by . This book was released on 1967 with total page 1306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide to Reprints written by Albert James Diaz and published by . This book was released on 1998 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Books on Demand written by and published by . This book was released on 1980 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: