Scrapbook of Harold Holcroft's visit to Germany with the Institution of Locomotive Engineers, for their summer meeting
Letter from Nigel Gresley to Harold Holcroft, requesting they meet to discuss ideas relating to 3 cylinder
Patent for "Improvements in or relating to valve gears for engines worked by fluid pressure" by Harold Holcroft
Includes a number of plans produced or used by Holcroft, technical notes, and notebooks used to jot down results whilst carrying out trials for Great Western Railway, South Eastern and Chatham Railway and Southern Railway. Plans, drawings and notes
1 document "The Fairlie Locomotive; part 2: later designs and productions", by the late P. C. Dewhurst, prepared by Harold Holcroft from accumulated notes, read at The Newcomen Society.
1 document Specification of patent for "Improvements in the Valve Gear of Three and Four-cylinder Locomotives" by Harold Holcroft
2 items "The Steam Locomotive - An Historial Review" by Harold Holcroft with a contibution by Mr J. Jones, read at The Institution of Mechanical Engineers; East Midlands Branch; Graduates and Students Section
5 items Notebooks containing descriptions of photographs, as well as details about exposure and processing settings used
1 file "Design in Railway Engineering" by Harold Holcroft, read at Harwell Reactor School, Atomic Energy Research Establishment
1 item Notebook containing information about running restrictions on the newly formed Southern Railway network
1 item Photograph taken from the back of a train just having crossed the Hohenzollernbrücke across the River Rhine, in Cologne
1 item Booklet containing power charts for N and E1 class engines, decorated with Holcroft's doodles on the inside of the covers
1 docment Contribution by Harold Holcroft to an unidentified engineering reference book, in which concepts of locomotive engineering are detailed
3 documents Patent for "Improved means for use in operating continuous brakes by a vacuum or compressed air" by Harold Holcroft
38 items in 2 bundles Set of notebooks containing field notes on locomotive trials at South Eastern and Chatham Railway
7 documents Documents relating to the development of three-cylinder valve gears, collected by Harold Holcroft
1 document "Tractive Force and Adhesion of Locomotives", by Harold Holcroft, read at The Institution of Locomotive Inspectors and Foremen
1 item Photograph featuring a railway engineer and a man in a suit talking whilst on the footplate of Southern Railway's E850 "Lord Nelson"
1 item Notebook containing reference tables and diagrams relating to Great Western Railway, such as maximum load gauge and standard track layouts.
2 bundles Plans and documents relating to the instalation and trialing of Anderson steam conservation equipment on the N-Class A816 locomotive
1 bundle Draft copies of letters from Harold Holcroft to Oliver Bulleid, as well as a draft of a letter to Bulleid's wife upon learning of his death, and her reply
1 bundle Bundle regarding the newspaper article entitled "The Liverpool and Manchester Railway" by Harold Holcroft
