From Graces Guide
Andrew Lamb (c1803-1881), Chief Engineer of the Peninsular and Oriental Steam Navigation Co
1848 The Canton, built for P&O by Tod, McGregor and Co, was fitted with a boiler blow-off system to prevent build up of salts - this had been introduced by Mr Lamb, superintendent engineer of P&O; the ship was also equipped with Lamb's patent life boats.
1852 Andrew Lamb described the Lamb and Summers type of boiler at the I.Mech.E; this was a boiler with narrow vertical flat-sided flues instead of tubes, as this arrangement was easier to keep clear of soot and fine ashes. It was used in P&O vessels in the 1850s
1859 Provisional patent on an improved method of feed-water heating for boilers
1859 Patent. '2815. And Andrew Lamb and William Alltoft Summers, both of Southampton, in the county of Hants, Engineers, have given the like notice in respect of the invention of "improved arrangements of apparatus for superheating steam."'
1859 P&O's new screw steamer Colombo was fitted with Mr Lamb's patented superheating arrangement
1881 March 29th. Died.
1881 Obituary 
Sources of Information
- The Engineer 1875/10/29
- The Times, May 27, 1848
- A Short History of Naval and Marine Engineering, 
- The Times, Jul 05, 1852
- Post Office Directory of Hampshire, Wiltshire & Dorsetshire, 1855
- The Engineer 1859/07/15
- The Engineer 1859/10/14
-  The London Gazette Publication date:11 January 1859 Issue:22217 Page:83
- The Times, Jun 16, 1859
- The Times, Jun 04, 1881
- Engineering 1881 Jan-Jun: Index: General Index