Climax Rock Drill and Engineering Works
of Carn Brea, Redruth, Cornwall.
formerly R. Stephens and Son
1913 Private company.
1914 Rock Drill Manufacturers. Employees 200. 
1937 Company made public.
1940 Advert for rock drills and other mining tools. 
WWII Largely concerned with making armaments
1945 Advert for the Climax fettling grip, an air operated vice for use in foundry and fitting shop. 
1951 Introduced Maxam pneumatically controlled valves and air cylinders
1951 Became a subsidiary of Holman Brothers
1956 Maxam products were being used for automation of industry at home and abroad
1961 Manufacturers of rock drills, pneumatic drills, electric coal and stone drills, electric drills, portable and stationary air compressors. Manufacturers of "Maxam" automation equipment. 
Presumably connected with Maxam Power
Sources of Information
- 1914 Whitakers Red Book
- Mechanical World Year Book 1940. Published by Emmott and Co of Manchester. Advert p49
- Mechanical World Year Book 1945. Published by Emmott and Co of Manchester. Advert p65
- The Scotsman - Friday 30 June 1950
- The Times, Mar 12, 1951
- The Times, Sep 04, 1956
- The Times Jul 08, 1957
- The Times, Aug 13, 1958
- 1961 Dun and Bradstreet KBE