Hobbs went to London as a representative of the New York company of Day & Newell, which was exhibiting at the Great Exhibition of 1851. Hobbs had brought with him his boss's Parautoptic lock, designed to compete with, and surpass, the locks available at the time in Britain. He was the first one to pick Bramah's lock and the Chubb detector lock at the Great Exhibition of 1851 and forced the lock manufacturers to improve their designs.
The lock controversy continues a subject of great interest at the Crystal Palace, and, indeed, is now become of general importance. We believed before the Exhibition opened that we had the best locks in the world, and among us Bramah and Chubb were reckoned quite as impregnable as Gibraltar— more so, indeed, for the key to the Mediterranean was taken by us, but none among us could penetrate into the locks and shoot the bolts of these masters. The mechanical spirit, however, is never at rest, and if it is lulled into a false state of listlessness in one branch of industry, and in one part of the world, elsewhere it springs up suddenly to admonish and reproach us with our supineness. Our descendents on the other side of the water are every now and then administering to the mother country a wholesome filial lesson upon this very text, and recently they have been "rubbing us up" with a severity which perhaps we merited for sneering at their shortcomings in the Exhibition.
In 1854 he was awarded a Telford Medal by the Institution of Civil Engineers for his paper 'On the Principles and Construction of Locks'. Hobbs became one of the founders of the lock making firm of Hobbs Hart & Co. Ltd. The company started in 1851 and was formally registered as Hobbs and Co. in 1852. But by 1855 it had become Hobbs, Ashley and Company. The name then changed to Hobbs, Ashley and Fortescue, with an address at 97 Cheapside in London. Then for the next ninety years the address was 76 Cheapside in London. In 1860 Hobbs returned to America and lived in Bridgeport, Connecticut, and went on to hold a dozen patents for firearm ammunition manufacturing. In 1880 he listed himself as a "Superintendent Of Cartridge Factory".
Publications
Locks and Safes: The Construction of Locks. Published by Virtue & Co., London, 1853
Patents
Improvements in Machines for Winding Wads April 15, 1873