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Titles to Look Out For:
[In alphabetical order of title. Date given is of earliest edition; later editions included]
1922. Model Steam Locomotives (including more recent revised editions)
1947. Planning & Layout: A Practical Guide to the Planning of Indoor and Outdoor Model Railways
1934, June. Practical Notes on Fitting Lifting Bridges [The Model Railway News, Vol. 10, No. 114, p. 162]
1954. Walschaerts' Valve Gear (2nd Edition)

About the author: The late Henry Greenly began his professional career in locomotive engineering in 1899-1900 and his first 15in. gauge locomotive, the famous Little Giant, was an Atlantic type built in 1904 by Messrs. Bassett-Lowke, Ltd. It was indeed the pioneer of British miniature railway engines to be followed a few years later by the equally famous San Pareil, which saw considerable service on the Ravensglass and Eskdale Railway in Cumberland.
The "Pacific" type locomotive, Colossus, was contemporary with the famous Great Bear of the G.W.R.-these two engines being the only "Pacifics" employed in this country at the one period prior to 1920. In 1924 Mr.Greenly designed his one-third "Pacifics" for the Romney, Hythe and Dymchurch Railway, Kent.
Henry Greenly's interests were not limited to the design of locomotives for the larger gauges (this included full-size engines). He excelled at design whether the gauge was 1.25 in. or any other of the accepted standards up to 12 in.

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• Model Steam Locomotives [top]
  By Henry Greenly; Revised edition by Ernest A. Steel
  First published in 1922 in Great Britain by Cassell & Company
  Third (revised) edition published in 1929
  Seventh Edition (completely revised), 1951
  Eighth Edition with some revisions, 1954. Original UK retail price: 21 shillings net
  Ninth Edition published in 1979 in hardback with dustjacket, 172pp, ISBN 0304300241

1951, 7th (completely revised) edition:
Contents: This is a classic and standard work for model steam engineers and enthusiasts. The volume is packed full of data, pictures and technical details. The 1951 publication is a revised edition of the 1922 work, incorporating the latest devices and improvements in steam locomotives (as of the 1950s). The original text was revised and enlarged by Ernest A. Steel and many new and valuable diagrams were introduced relating to the latest types of steam locomotives in British or other railways.

Chapters:
1. Choice of Scale & Gauge
2. Locomotive Types
3. The Principles of Model Locomotive Design
4. Boiler Design
5. Frames, Axleboxes and Springs
6. Wheels, Axles, Crank Axles and Crank Pins
7. Bogies, Pony Trucks and Radial Axleboxes
8. Cylinders
9. Valve Gearing
10. Simple Reversing Motions
11. Valve Gearing:Link and Radial Valve Gears
12. Motion Details
13. Boiler Construction
14. Boiler Mountings, Cab and Other Fittings
15. General Fitments, Tenders and Drawgear
16. Firing and Boiler-Feeding Devices
17. Brake Systems
Index

1979, 9th (Completely Revised) edition [top of listing]
Contents:
When this publication was reissued in 1979, the interest in the days of steam and in miniature railways was greater than at any preceding point. For this reason, Ernest A. Steel once again completely revised his father-in-law's authoritative text, bringing it completely up-to-date. Almost 200 new drawings were prepared for the publication by the author's wife, Elenora, daughter of the late Henry Greenly. Many new photographs replace those of earlier editions. In all, there are 250 illustrations and diagrams. For example, it contains scale diagrams of a combined horn and stretcher for location below firebox and assembly of locomotive horns and axlebox for 2-in scale Atlantic; or a scale diagram of trailing frames for 7.25 in gauge L.N.E.R type locomotive; on page 62, there is a scale diagram of a taper boiler for a 5in gauge L.M.S.R locomotive. There are many more diagrams than just these examples; if you need to know if this book contains a particular diagram, let us know and we'll take a look for you.

The text covers the various standard scales and gauges (ranging from Gauge 1 to 15") for all the different types of locomotive which have proved popular for model-making purposes. It gives clear and detailed instructions for making engine frames, wheels and axles, boilers, cylinders, the motion and the valve gear.

Chapters:
1. Gauges and Scales
2. Steam Locomotive Types
3. Considerations of Design
4. Boiler Design and Construction
5. Boiler Mountings and Fittings
6. Locomotive Frames
7. Wheels, Axles and Bearings
8. Bogies and Pony Trucks
9. Cylinders
10. Valve Gears
11. Motion Details
12. General Fitments, Tenders and Brakes. Index

1979, Cassell, hbk

2005. Camden Miniature Steam Services

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• Planning & Layout: A Practical Guide to the Planning of Indoor and Outdoor Model Railways [top]
  Published in 1947 in Great Britain as a new edition by Percival Marshall & Co. Ltd, 48pp, paperback (booklet format, staple binding-staples hidden by cover)
  Original UK Retail Price: 3/- Net

Contents: This book looks at choice of gauge and explains the nomenclature, types of plan, station plans, the planning of outdoor railways, exhibition plans and features affecting model railway planning. Includes diagrams of comparatives sizes of "0" and "1" gauges, a table of standard gauges and scales, a table of standard dimensions of "00", "0" and "1" gauges, a diagram of loading gauge dimensions to be predetermined, a diagram of the Southern Railway System of four-road planning, and many track plans

All Editions:

• Walschaerts' Valve Gear [top]
  Revised by Ernest A. Steel
  Second Edition first published in 1954 in Great Britain by Model & Allied Publications Ltd (MAP Technical Publication),
  Reprinted in 1969
  Reprinted in 1973 in paperback, staple binding, 63pp, ISBN 0853441081 original UK retail price: £0.50
  Reprinted in 1977 by Model & Allied Publications in paperback, staple binding, 63pp, ISBN 0853441081
  Revised Edition (revised by Martin Evans) published in 1980 in Great Britain by Argus Books Ltd, in paperback (staple binding), 63pp, ISBN 0852427360

About this book:
Illustrated throughout in scale drawings. Published in 1973 in Great Britain by Model and Allied Publications in paperback (staple binding), this 63 page book is all about Walschaerts' valve gear for steam locomotives - here model steam locomotives; however it is mainly because Walschaerts' valve gear became so firmly established as one of the principal reversing mechanisms employed in British locomotive practice that the late Henry Greenly set about the task of writing and illustrating this little book for the benefit model engineers. Otherwise, such enthusiasts (who deserve to be encouraged), would be confronted with the intricacies and problems connected with the gear for the first time. In the original edition, he pointed out that the outstanding and inherent feature of Walschaerts' gear is that, if properly designed, it is the perfect gear for accuracy of function in all the positions of the driver's reversing lever or screw and it can be argued that this is why it remains so popular and so much utilised.
The fascination with the gear is that it is the principal feature of the modern high-speed steam locomotive and one that attracts attention by all and sundry whether the machine is stationary or in motion. How does it work? What do all the bits do? Where does each part fit and why? All questions that the gear begs in the mind of the viewer. Here is a mechanism that does not have to be hidden away between locomotive frames, but which can be brought outside for ready access, repair and maintenance

Edition Note: The later editions such as 1973, 1977 and 1980 include a chapter devoted to the design of Walschaert’s gear for a 2-6-0 locomotive in 5 inch gauge

Chapters:
Preface
1. Application of the Valve Gear
-Accuracy of Movements
-Outside Gear with Outside Steam Admission
-The Outside Valve Gear with Inside Admission Valves
-Inside Cylinder Valve Gear

2. Design and Layout
-Slide Valve Proportions
-Piston Valve Proportions
-Expansion LInk Movements
-The Advance Functions
-Dimensioning the Lap and Lead Levers
-Top Joint Proportions
3. The Expansion Link
-Longitudinal Position of Expansion Link
-Suspension of Expansion Links
-Girder Frame Suspension
-The Gear in End View and Plan
4. Return Crank and Expansion Link Mechanism
-Equality in Angular Swing Essential
-Correction for Equal Angle of Swing
-The Effect of Inclination of Valve Gear
-Determining Back Set
-The American Gear
-Inside Cylinder Eccentric-driven Links
-Using Inside Admission Gears for Slide Valve Models
5. Lifting Links for Reversing Mechanism
-Lifting Links (Forward Type)
-Lifting Links (Reverse Type)
-Lifting Arms behind the Link
-The Slide Type of Reversing
6. Return-Crank Design
-Position in Relation to the Main Crank Pin
-Forged Return-Cranks
-Setting Out
-Fixing the Return Crank
7. The Combination Lever
-Clearing the Crosshead
8. Operation of Valve Gear
-Setting Walschaerts' Gear
-Conjugated Valve Gear
-Cab Reverse Gear
-Baker Gear
9. Valve Gear for 2-6-0 locomotive
-Adhesion
-Cylinders
-Combination Lever
-Expansion Link
-Return Crank
-Back Set
-Valve Events
-Crosshead Connections
-Lifting Arm
-Eccentric Rod

Contains highly detailed technical drawings and tables (such as average heights and offsets of valve spindles for outside cylinders). An invaluable work for the model railway engineer

Valve Gear Books