POWERHOUSE COLLECTION

Model of a water tube boiler and marine steam turbine

Model of a water tube boiler and marine steam turbine

Object No. B694

This is a model of a Babcock type water tube boiler and marine steam turbine model. The successful development of the steam turbine and its application to marine propulsion are due to the Hon. Sir Charles A. Parsons, who designed and built the 'Turbinia', which made its dramatic appearance at the Naval Review held at Spithead in 1897. The spectators were thrilled to see this small vessel race down the lines at 34.5 knots, a speed never before attained on water. It was an early form of the Zoelly marine steam turbine, as developed in Switzerland about 1910. In earlier applications, turbines were direct-coupled to the propeller shafts. To attain the maximum efficiency, however, it became necessary to run the turbines at much higher speeds than would be suitable for the screw propellers. Toothed reduction gearing was therefore introduced between the turbine and the propeller.

Loading...

Summary

Object Statement

Babcock type water tube boiler and marine steam turbine model, working geared type, brass/steel, maker unknown, made before 1937, part of A A Stewart Collection of model engineering

Physical Description

Working model of geared type marine turbine and Babcock type water tube boiler.

DIMENSIONS

Height

530 mm

Width

570 mm

Depth

335 mm

HISTORY

Notes

This model is a part of the A. A. Stewart collection of ship, mechanical, and railway models acquired by the Powerhouse Museum over nearly 30 years from 1938 to 1963. Albyn A. Stewart was a trained engineer fascinated by engineering models and he constructed some of those in the collection. Others however were brought from amateur and commercial modellers at great expense to Stewart who travelled regularly to England to seek out models. In January 1938, Percival Marshall, the editor of 'The Model Engineer' England's premiere modelling magazine devoted editorial space to the collection where he stated that "Mr. Stewart has been fortunate in acquiring some excellent examples of both screw and paddle marine engines of considerable value as records of real prototype practice." In April of the same years he expanded his comments on the collection by saying, "As a trained engineer himself, his judgement of the technical merits of a model is very sound, and I should imagine that his collection is now the finest of its kind in Australia, in private hands. Many of the models are undoubtedly worthy of careful preservation, and I hope that they will eventually find a suitable resting place in one or other of the Australian national museums." Stewart was first contacted by the Technological Museum, as the Powerhouse Museum was then known, in 1933. The then Director/Curator A. R. Penfold immediately recognised the importance of the engineering models and in 1935 began to loan items for display. Penfold expanded the area available for displaying the models as they were seen as instructive for students at the adjacent Technical College as they were for the general public. In early 1938 Stewart's company 'Lymdale Ltd.' which owned most of the models was approached about the purchase of a large part of the collection. Stewart was appointed to the Advisory Board of the Museum and in July 1938 it began to purchase the models it had lent as well as the best examples in the rest of the collection. The cost of this was estimated at over 3000.00 pounds. By 1943 the museum was still acquiring material from the collection and the Advisory Committee made a special appropriation request to the Minister of Education. "In view of the advantage of retaining a collection intact, and the national asset which the museum possesses, the committee recommends the purchase of the remainder of the Stewart collection offered at approximately 2,400. This sum was approved and between 1943 and 1945 around 80 more models were purchased. Apart from the monetary limitations the acquisition was spread over a number of years because some of Stewart's models needed to be finished before they could be sold. The high costs reflected the quality of the models. Many of the working steam engines are one-off examples hand crafted by amateur modellers over the course of years. The same is true of some of the ship and locomotive models many of which are made to exact scale and include working parts. The models were carefully collected by Stewart who collected as much for posterity as he did for personal interest. Once contacted by the museum he deliberately sought models which would fill historical and technological gaps and as a result the collection is one of the most significant in still extant in Australia. A. A. Stewart died in 1961. The museum purchased this model in 1937. Geoff Barker, March, 2007 References Marshall, Percival, 'The Model Engineer and Practical Electrician', London, April 29, 1937 Marshall, Percival, 'The Model Engineer and Practical Electrician', London, May, 27, 1937 Marshall, Percival, 'The Model Engineer and Practical Electrician', London, January, 27, 1938 Marshall, Percival, 'The Model Engineer and Practical Electrician', London, April, 14, 1938 Chalmers, A. Mar, 'The Model Engineer in Australia and New Zealand, Melbourne, January, 1939 Davison, G., Webber, K., 'Yesterday's Tomorrows; the Powerhouse Museum and its precursors 1880-2005', Powerhouse Publishing, 2005 Lavery, B. and Stephens, S., 'Ship Models; their purpose and development from 1650 to the present', Zwemmer, London, 1995

SOURCE

Credit Line

Purchased 1937

Acquisition Date

25 March 1937

Copyright for the above image is held by the Powerhouse and may be subject to third-party copyright restrictions. Please submit an Image Licensing Enquiry for information regarding reproduction, copyright and fees. Text is released under Attribution-Non Commercial-No Derivative licence.

Image Licensing Enquiry

Object Enquiry