Rudimentary Treatise on the Construction of Locks, by A. C. Hobbs 63128 [Editor: Charles Tomlinson] [Link: http://www.gutenberg.org/6/3/1/2/63128 ] [Files: 63128-h.htm; 63128-0.txt; ] [Clearance: 20191005131148thomlinson ] E-text prepared by deaurider, Harry Lamé, and the Online Distributed Proofreading Team (http://www.pgdp.net) from page images generously made available by Internet Archive (https://archive.org) Thanks, Joe