Arthur Ross, Hotchkiss and Co
of 1 Glengall Road, Old Kent Road, London SE
c.1864 Arthur Ross established the business
1907 Incorporated as a Limited Company.
1913 Arthur Ross died
1914 Specialities: Compositions for the prevention and removal of incrustation in Steam Boilers; also the "Hotchkiss" Automatic Circulator. 
1973 Garage Proprietors; the company was voluntarily wound up
A description of the Hotchkiss Circulator is available online