دانلود کتاب On the Construction of Locks and Keys

Title Plate and Title Page 1
Opening Speech, April 9, 1850 - Note on Egyptian Locks 3
Fig. 1. Egyptian Lock - Hebrew Text 5
Fig. 2. Letter Lock with Exploded view 7
Fig. 3. Warded Lock 9
Fig. 4. Barron\'s Lock (Lever Tumbler) 11
Fig. 5. Bramah\'s Lock 12
Fig. 6. Chubb\'s Lock 14
APPENDIX Note A. Crime - Robbery 17
Fig. 7. Note B. Chubb\'s Quadruple Lock 18
APPENDIX Note C. Chubb Letter of Reference 19
APPENDIX Note D. List of lock patents 1774 - 1849 19
APPENDIX Note E. List of Refferences 21
Fig. 8. Chubb\'s Fire-Proof Iron Safe 22
Fig. 9. Jack in the Box 23
Fig. 10. Nettlefold\'s Lock, Pat. 1839 30