Complex sentence: He was a partner with his brothers Charles Henry Metters (c.1853--1929) and John Thomas Metters (c.1853--1924) as "Metters Bros." of Melbourne in 1891 when he applied for a patent on improvements to the wood-burning stove.
Split into simpler sentences: He was associated with with his brothers Charles Henry Metters (c.1853--1929) and John Thomas Metters (c.1853--1924) who traded as "Metters Bros." of Melbourne. In 1891 he applied for a patent on improvements to the wood-burning stove.