Category:Numbered Stuart Turner stationary steam engines

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By 1906, the Stuart Turner catalogue already included most of the numbered ST range, including engines No.1, No.2 and No.4 to No.9.

No.1 was Stuart Turner's very first engine, and appears to have continued to be produced ever since with only very minor variations, partly because of the historical significance of the design. The No.2 is illustrated in the 1906 catalogue with the same image, an identical price (£7 5s., or £8 10s. with reversing gear) and identical specifications apart from the stroke being reduced from two inches down to to one-and-a-half. We'd tend to assume that it was discontinued for being just too similar to the No.1. The No.4 is again a variation on the No.1, with the spoked flywheel replaced by a solid disc, to make it better suited for running at high speeds.

The later No.10 seems to have been a worthwhile design investment, as the engine was made available in both vertical and horizontal versions (No.10V and No.10H), and also a D10 or Double Ten based on a combined pair of vertical No.10 units. Demand for a horizontal counterpart of the D10 later subsequently produced the "Score" engine.

Catalogue descriptions

STUART No. 1

2-inch Bore, 2-inch Stroke Height, 13-inches

£5 7s. 6d.

Whilst this engine is equal to any amount of hard work it is so beautifully proportioned that many give lasting satisfaction as glass-case models.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 2

2-inch Bore, 1½-inch Stroke

This engine is built from most of the same Castings as the No.1. It has a deeper Piston with Cast Iron Ring, and having a shorter stroke, is suitable for very high speeds.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1906

STUART No. 3 Compound

1½-inch and 2¼-inch, by 1½-inch Stroke

Finished Engines Without Reversing Gear but mounted on Box Bed complete with 7¼ inch Flywheel or 5 inch Disc.
£12 0s. 0d.
With Reversing Gear and Disc Wheel
£15 10s. 0d.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1906

STUART No. 4

1½-inch Bore, 1½-inch Stroke Height, 10-inches

£3 6s. 0d.

No. 4 is an imposing looking Engine and, with a balanced disc flywheel, capable of very high speed. The machining is quite straightforward and easily done on a 3-inch lathe.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 5

2-inch Bore, 2-inch Stroke

Finished Engine
£7 10s. 0d.
with Slip Eccentric
£7 15s. 0d.
Or Fitted with Reversing Gear
£9 0s. 0d.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1906

STUART No. 5a

2¼-inch Bore, 2-inch Stroke Height, 15-inches

£6 17s. 6d.

This is a particularly pleasing design, and the Engine is exceptionally robust. At 60-lb. pressure it will develop at 1,000 r.p.m. 5/8 b.h.p. Many have been supplied for driving Compressors, Dynamos and other machinery. A special displacement Lubricator (an enlargement of our Model design) can be supplied for £5 10s. 0d.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 6 High Speed Compound Engine

2½-inch and 4-inch, by 3-inch Stroke, With Balanced Cranks

Finished Engine, without reversing gear
£25 0s. 0d.
With Reversing Gear
£33 0s. 0d.

THE enormous interest occasioned by my No.3 Compound, and numerous subsequent enquiries for a large size, has prompted me to design this Engine.

The materials and parts herein listed are absolutely the best obtainable, no expense has been spared to produce a first-class set at moderate price.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1906

STUART No. 6a Compound

4 b.h.p., 750 r.p.m., 120 lb steam pressure; 2½ in and 4 in. × 3 in. stroke.

Overall dimensions:– 20 in. (508 mm.) high, 14 78 in. (377.8 mm.) wide, 17 58 in. (447.7 mm) long. Finished weight about 150 lb (68 kg).

A Compound Condensing Steam Engine developed from the original Stuart No. 6.

We have had numerous requests to revive this useful and attractive engine and now offer the full set of castings with five detail and assembly drawings, also six-page Schedule of all parts. Please note however we are not supplying any parts or materials – only the castings in unmachined state.

— , Stuart Turner Ltd., , Stuart Models catalogue, , February 1978


STUART No. 7a

1-inch Bore, 1-inch Stroke Height 7½-inches

£2 5s. 0d.

The engine is well suited to beginners; a small lathe only is required. The modern standard with the "tunnel" crosshead guide is a simple job for the lathe, so what was at one time quie a difficult part to make with accuracy can now be tackled with confidence. Throughout the machining and fitting is of a simple character.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 8

1-inch Bore, 1-inch Stroke Length 8½-inches

£2 5s. 0d.

This engine, like the 7a, has the latest type of bored crosshead guide, making it a simple, straightforward engine to build, and a very robust engine to work.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 9

1½-inch Bore, 1½-inch Stroke Length 11-inches

£3 15s. 0d.

This engine, especially when fitted with governors and feed pump, is a particularly pleasing model of the big powerful steam engines once in common use. They were never made with reverse gear.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 10V

¾-inch Bore, ¾-inch Stroke, Reversing Gear is not supplied

Total Height 5 78-inches, Width 3-inches, Length over crankshaft 3 38-inches, Weight 1-lb. 12-oz.

The No. 10 has always been one of the most popular in the STUART range. It is small enough to machine on a small lathe; at the same time it is large enough to handle easily.

The No. 10V is an excellent engine for driving a small dynamo or pump and, fitted with disc wheel instead of spoked flywheel, it makes an ideal marine engine. Ordinary or flash steam may be used.

An eight page leaflet containing very clear instructions is supplied with every No. 10 engine. To the beginner we can thoroughly recommend the book described on page 2, price 2/- post free.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART No. 10H

¾-inch Bore, ¾-inch Stroke, Reversing Gear is not supplied

Overall Length 6½-inches, Width 3½-inches

The No. 10H is very similar to the vertical engine and many parts are interchangeable. It is suitable for driving a dynamo and other models.

— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

STUART Double 10

VERTICAL, Reversing Gear is not supplied

Overall Length 6½-inches, Width 3½-inches

The No. 10H is very similar to the vertical engine and many parts are interchangeable. It is suitable for driving a dynamo and other models.


— , Stuart Turner Ltd., , Stuart Models catalogue, , 1965

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