Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 312
ering a reward of 200 gui-neas to any one who could pick a lock of theirs on exhibition, was accepted by Mr. Hobbs, anAmerican. He succeeded after a trial of 51 hours, embraced in a period of 30 days. Hobbs invented a lock called a protector, which is represented in Fig. 2822. This is much… … 2827.
Mechanical engineering -- Dictionaries
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![An illustration from The gentlemens or builders companion : containing variety of usefull designs for doors, gateways, peers, pavilions, temples, chimney-pieces, slab tables, pier glasses, or tabernacle frames, ceiling peices [sic] &c. (1739)](https://img.insideoutlibrary.com/img/200/ia-gentlemensorbuil00jone-50-33.webp)
