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Issue 569 June 2018 Worth £ 3/0/0 Newsletter from the National Steam Centre Print Post App. NO 100003042 Peter Jackman driving John Sparks large scale miniature Foden steam wagon in the Heyfield Grand Parade Also in this Issue Willans Activity Chart Old Gippstown Willans Steam Engine Robert Owens's Mill June 2018 STEAM SUPREME 2 Heyfield Rally Peter Jackman photo A highlight of the Heyfield rally were working demonstrations of a logging steam winch . Specialized pieces of equipment and only built by a few manufactures around the world this one was a product of A Harman of Port Melbourne . They feature 2 drums allowing a loop of cable , passing around a pulley block attached to an anchor tree, to be let out from one as the other end is wound in . In this way logs could be repeatedly snigged out of otherwise inaccessible locations in the bush. Brian Aitkin assembled this outfit over a period of 6 months from machinery he acquired and restored. The Harman winch came from Warwick Turner at Echuca and was possibly Bill McKinnon's while it’s agents plate proclaims it was sold by Cameron, Sutherland , Seward Pty Ltd , Melb & Sydney . Feedwater is arranged using a steam driven weir type pump feeding from a wooden wine barrel. Although the outfit is Brian’s own concept , being mounted on log skids and with a corrugated iron canopy it is representative of the equipment used in the Gippsland bush for logging over 100 years ago. A wonderful display and something rarely seen in action. Incidentally our National Steam museum has at least 2 such winches ( outside Blacksmiths shop and in Bay 5 ) so there is an opportunity for us to set up a similar eye-catching display. Another striking display , typical of what the guys from this district can put together, is this Chaffcutting Outfit. Hauled by Jake Coleman’s American Buffalo Pitts Traction Engine is a wooden Living Van , similar to the CRB one we have . Following is the large Chaff Cutter which would be driven by the engine once set up . Finally there is a Furphy Watercart in tow to feed the engine . Our Peter Jackman is always a great supporter of the Heyfield rallies. This year he exhibited his Ronaldson Tippet single cylinder CF Diesel engine which was made in Ballarat probably in the 1950’s . Always a sweet runner. June 2018 STEAM SUPREME 3 What caught my attention was a very original looking FJ Holden sedan . After taking part in the grand parade it ended up parking by John Sparks miniature Burrell traction engine which was under the charge of his friend Cecil . The Holden owner soon started telling Cecil and myself all about his wonderful FJ , what the owner did not know was Cecil’s family have been prominent Holden Dealers in the Albury/ Wagga area for many many years and of course I am an ex Holden Engineer of 35 years. Well initially he did not take well to being politely corrected on a few points but soon warmed to us when he realized Cecil in particular knew a bit and could help! No sooner than I had arrived I was being told of the MSTEC display . What I found was John Sparks with his suburb collection of his large scale miniatures and a bright new eye catching sign board promoting our Club . John a MSTEC member has always been a keen supporter of what we are and what we do so took it on his own initiative to take the opportunity to promote us . Well it certainly Finally to give you an idea of the scope of the Heyfield rally Peter has compiled some statistics . Steam 3 Portables , 2 wagons ( including a rare MANN ) 4 Miniatures ( John Sparks ) , 2 Steam cars ( locomobile type ) 11 Traction engines , 1 Roller , 1 Winch . Internal Combustion With a tractor pull in full action there was no less than 93 .Vintage trucks 34 ( including 6 military ) . Stationary engines 3 1/2 compounds Motorbikes about 20 Vintage cars probably 40 . Peter Jackman’s photo of John’s displays and signs including the prominent one promoting our club. June 2018 STEAM SUPREME 4 What About WILLANS STEAM ENGINES ? Of course we are always talking about the Willans Diesel engine but it came as a bit of a surprise when a member produced a book with a section on Willans “Modern High Speed “ STEAM engines . Basically the story went :- Around 1880 demand arose for steam engines to drive electric dynamos mostly for lighting purposes. With the slow speed double acting open crank steam engines of the day a flat belt drive was necessary to step up the generator speed sufficiently to get the required volts. Direct Willans compound central valve engine and dynamo cc 1888 . drive was obviously the way to go so “ high speed” 18 hp at 450 rpm in the Science Museum Collection (UK) steam engines were developed . These were generally single acting to try and avoid bearing issues believed to be caused by the reversal of load due to the pushing and pulling on the conrod you get with a double acting engine. Around 1885 Peter Willans ( the Engineer) and Mark Robinson ( the capitalist ) patented a high speed single acting enclosed crank self lubricating design . A revolutionary feature was the valve arrangement . The rod the pistons were mounted on was hollow with steam being supplied to the open top end. Inside the rod was a piston valve that moved up and down being driven from a separate eccentric . This uncovered a series of slot at the appropriate time to admit and exhaust the steam . With this arrangement 1 , 2 or 3 cylinders of ascending size could be stacked on top of each other and by arranging a series of valves and slots at each level steam could pass down the hollow rod to the next bigger cylinder below. In this way double and even triple expansion engines were possible for greater efficiency. Sectional view of the Willans and Robinson high speed steam engine first made at their Thames Ditton, Surrey plant and after 1896 Victoria Works Rugby , Warwickshire . Clearly seen is the valve eccentric placed between the double crankpin. A critical feature for high speed operation was the enclosed crankcase and splash lubrication. This type of engine was made by Willans over a 20 year period specially for generating electricity in a variety of sizes and number of cylinders producing up to 2500 hp. The book goes on to say the Willans were very popular being well made and to close limits so were economical and parts were interchangeable. Such was their performance that they captured up to 70% of the electricity generation market before their design was rendered obsolete around 1904 by the introduction of the steam turbine while those still wanting reciprocating engines turned to the more conventional Bellis & Morecombe design being double acting and double crank compound , totally enclosed with pressure lubrication .This type of engine went on to be made in great quantities by a number of manufactures for many years but that is another story . Willans was obviously a progressive company so soon changed over to steam turbine manufacture in conjunction with Parsons . This was in their new works , which had expanded to Rugby in Warwickshire. Soon afterwards they become involved with English Electric gaining them a large share of the market. Cont . June 2018 STEAM SUPREME 5 Willans and Robinson 2400 hp generating engine at a Paris Exhibition around 1900 copyright expired Although not mentioned in the “Steam Book” Air blast engines under the Diesel licence were manufactured in their Rugby Works from 1904 to the end of the 1920’s . Given their capability to make huge steam engines to a very high standard I expect it would have been an easy transition to produce Diesels. A 335 bhp Willans Diesel engine on the brake at the Rugby factory in 1913. In the picture can be seen 3 other engines in various stages of erecting / testing. Graces Guide to British industry Warwick S S S S S S SS S S SS S S S S SS S S What is Next for our WILLANS DIESEL ? With the foundations finished the Committee has asked that a plan be established for mounting and assembling the engine. Considerable thought has gone into this phase of the project as it is a large and complicated machine so needs to be attacked in a specific order ie Some things cannot start until others have been done and if something has been missed out much dismantling may be required to put it in . In other words there is a Critical Path. This is shown below to let members know what is happening and help as a guide on where to start . The next step is establishing who is prepared to get involved and establish who will lead the project. Let’s have your thoughts . Of course the other aspect is just how do you go about screwing together such a large piece of machinery . We are fortunate to have Phil Randall, ex marine engineer, who knows these large engines and is preparing a step by step set of instructions. These will be published in Steam Supreme from time to time as they are applicable to the erection of many large vintage engines. We will start with mounting the base , installing the crankshaft and aligning the machinery. 335 HP Willans Diesel on test with 3 others in various stages of assembly. June 2018 STEAM SUPREME 6 WILLANS ACTIVITY CHART GROUP ACTIVITY Preparation Engine Base Key Green Indicates Sequence Activities can be done in Coupling bolts Red Indicates the earliest a group can be started Flywheel Outrigger Bearing Generator From this it is evident many things can be put in order Bigends Remetal immediately without the need to wait until the engine is bolted down Mount & Align Machinery Base Crankshaft Flywheel Generator Aircompressor Base Assembly Big Ends Cylinders Alignment Cylinderheads Vertical Shaft Camshaft Overhead Gear Dress Engine Catwalk Exhaust Lube System Fuel System Engines Airpipes The flywheel needs carefully cleaning up on the Valves & Gauges mounting faces so it pulls up true Fuel Supply Stand Tank Plumbing Cooling System Engine Compressor Concrete Pit Pit Cover Foundation Block Bay 4 Floor Air Supply Stand Bottles Plumbing Gauges & Valves - Auxiliary Compressor Establish Condition The engine compressor is already Refurbish Install - done .