This enterprise was apparently launched after 1774.   The partners were Adam Broomhead (see Brittain, Wilkinson & Brownell), David Hinchsliffe, Joseph Hinchsliffe, John Williams, and Samuel Robinson.  They operated as a merchant and manufacturer of cutlery wares (pen, pocket, table knives, scissors, and razors) at Brinsworth’s Orchard.   Broomhead was based in London; Williams and Robinson in Sheffield.  In 1786, Joseph Hinchsliffe withdrew.  In 1791, Adam Broomhead of London, and John Williams and Samuel Robinson of Sheffield,  dissolved their partnership.  Apparently, Adam Broomhead died in 1804 and was buried on 25 July at St Peter & St Paul’s.  The trade marks were ‘BROOMHEAD’ and David Hinchsliffe’s heart and ‘IH’ device on scissors (see Robert Hinchliffe).