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part of archive:
Papers of Harold Holcroft
The correspondence of Harold Holcroft, largely with Oliver Bulleid.
4 bundles, 1 item
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Papers of Harold Holcroft
HOL/1 Papers and articles
HOL/1/1 Manuscript for unpublished book entitled "Life With Locos"
HOL/1/2 Papers and articles written by Harold Holcroft
HOL/1/2/1 "Tractive Force and Adhesion of Locomotives", by Harold Holcroft, read at The Institution of Locomotive Inspectors and Foremen
HOL/1/2/2 "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.
HOL/1/2/3 "Basic Facts concerning the First Newcomen Engine to be set at work" by Harold Holcroft
HOL/1/2/4 "Reflections upon the Position of Newcomen in 1712" by Harold Holcroft
HOL/1/2/5 "Design in Railway Engineering" by Harold Holcroft, read at Harwell Reactor School, Atomic Energy Research Establishment
HOL/1/2/6 "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
HOL/1/2/7 "The Southern Region of British Rail" by Harold Holcroft
HOL/1/3 Cuttings of articles written by Harold Holcroft for "The Engineer"
HOL/1/3/1 "Three-Cylinder Locomotives" by Harold Holcroft
HOL/1/3/2 Bundle regarding the newspaper article entitled "The Liverpool and Manchester Railway" by Harold Holcroft
HOL/1/3/3 "Conjugated Valve Gears for Locomotives: Their History and Development" by Harold Holcroft
HOL/1/4 Documents relating to the development of three-cylinder valve gears, collected by Harold Holcroft
HOL/1/5 Contribution by Harold Holcroft to an unidentified engineering reference book, in which concepts of locomotive engineering are detailed
HOL/1/6 The "Particulars of Career", and a photograph, of Harold Holcroft.
HOL/2 Plans, drawings and notes
HOL/2/1 Great Western Railway
HOL/2/1/1 Notebook containing reference tables and diagrams relating to Great Western Railway, such as maximum load gauge and standard track layouts.
HOL/2/1/2 Notebook entitled "Notes on Reinforced Concrete"
HOL/2/1/3 Notebook entitled "Notes on Graphic Statics"
HOL/2/1/4 Harold Holcroft's notebooks used during his time at Great Western Railway.
HOL/2/1/5 Folder containing plans from Harold Holcroft's time at Great Western Railway
HOL/2/2 South Eastern and Chatham Railway
HOL/2/2/1 Set of notebooks containing field notes on locomotive trials at South Eastern and Chatham Railway
HOL/2/2/2 Booklet containing power charts for N and E1 class engines, decorated with Holcroft's doodles on the inside of the covers
HOL/2/2/3 Harold Holcroft's notebooks used during his time at South Eastern and Chatham Railway.
HOL/2/2/4 Sets of cards depicting steam chest pressure charts
HOL/2/2/5 Set of folders with notes relating to Oil Fuel and Steaming trials
HOL/2/3 Southern Railway
HOL/2/3/1 Notebook containing information about running restrictions on the newly formed Southern Railway network
HOL/2/3/2 Plans and documents relating to the instalation and trialing of Anderson steam conservation equipment on the N-Class A816 locomotive
HOL/2/3/3 Harold Holcroft's notebooks used during his time at Southern Railway.
HOL/3/1 Patent for "Improved means for use in operating continuous brakes by a vacuum or compressed air" by Harold Holcroft
HOL/3/2 Patent for "Improvements in or relating to valve gears for engines worked by fluid pressure" by Harold Holcroft
HOL/3/3 Specification of patent for "Improvements in the Valve Gear of Three and Four-cylinder Locomotives" by Harold Holcroft
HOL/3/4 Copies of various specifications for patents relating to locomotive design
HOL/3/5 H. Holcroft's Observations on Patent Specifications
HOL/4 Scrapbook of Harold Holcroft's visit to Germany with the Institution of Locomotive Engineers, for their summer meeting
HOL/5/1 Correspondence between Harold Holcroft and Oliver Bulleid
HOL/5/1/1 Letters from Oliver Bulleid to Harold Holcroft
HOL/5/1/2 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
HOL/5/2 Letters from Richard Maunsell to Harold Holcroft
HOL/5/3 Letter from Nigel Gresley to Harold Holcroft, requesting they meet to discuss ideas relating to 3 cylinder
HOL/5/4 Correspondence of Harold Holcroft
HOL/6/1 Photographic of an unidentified man aboard a ship
HOL/6/10 Set of photographs showing close-ups of a wheel on a grooved rail
HOL/6/11 Notebooks containing descriptions of photographs, as well as details about exposure and processing settings used
HOL/6/2 Photographic portrait featuring a group of individuals in smart dress posed in a field, including Harold Holcroft
HOL/6/3 Photographic portrait featuring a group of individuals in smart dress posed in front of a building.
HOL/6/4 Photograph showing Southern Railway's E850 "Lord Nelson" during indicating trials
HOL/6/5 Photograph featuring a railway engineer and a man in a suit talking whilst on the footplate of Southern Railway's E850 "Lord Nelson"
HOL/6/6 Photograph showing Southern Railway's 771 "Sir Sagramore", near Shortlands
HOL/6/7 Photograph showing Southern Railway's S15-Class 510 locomotive at Feltham
HOL/6/8 Photograph showing an unidentified electric locomotive pulling several carriages
HOL/6/9 Photograph taken from the back of a train just having crossed the Hohenzollernbrücke across the River Rhine, in Cologne
HOL/7 Items accumulated by Harold Holcroft's grandson