Stoking the steam, one engine at a time…
Boiler from steam ship
Stuart Turner logo
  • © 2018 Steve Allen Contact Me 0

Marine Simplification

No. 491.
Type:
Horizontal marine centre flue.
Barrel length: 8 in.
Barrel diameter:
3 1/2 in.
Overall length:
11 in.
Height to top of dome:
4 1/2 in.
Diameter of centre flue:
2 in.
Weight empty:
3 3/4 lbs.
Weight full:
4 3/4 lbs.
Availability
No. 492.
Type:
Horizontal marine centre flue.
Barrel length:
9 in.
Barrel diameter:
4 in.
Overall length:
13 in.
Height to top of dome:
4 3/4 in.
Diameter of centre flue:
2 1/4 in.
Weight empty:
6 1/4 lbs.
Weight full:
8 1/4 lbs.
Availability



STUART MARINE BOILER
No. 491 and 492.

Stacks Image 260
This type of Boiler, fired by the Stuart Blow Lamp, is the most efficient steam generator on the market. The centre flue has cross tubes which are staggered to provide the greatest amount of heating surface to the flame. The boiler is brazed and silver soldered throughout, and is perfectly safe for pressures up to 80-lbs. per square inch. Our standard safety valves are set to blow off at 60-lbs. per square inch. The dome ensures dry steam.

The No. 491 will provide ample steam for the Stuart B.B. and Star Engines. To get full power from the “Sun” and launch engines, the No. 492 should be used.
PRICE.
Fitted with Safety Valve, Steam Cock, and Water Gauge Post Free No. 491 £4 No. 492 £6 10 0
Pressure Gauge and Syphon extra 9/6

Orders from abroad should include postage on 7-lbs.

29th September ,1925

C.C.C. California, writes :—

"The No. 491 Boiler and Blowlamp have arrived in good order. They are simply splendid.”

Stacks Image 262






Design

Very similar to the 1035 boiler these two are larger in diameter. The connection points have been rationalised with the safety valve moving to the dome, the water gauge moving from the dome to the end of the cylinder and the water feed from the side to the end of the boiler. These changes both reduce the cost of manufacture and ease of use. The number of cross tubes has also been reduced, another economy measure. the chimney mounting remains the same.







Stacks Image 268
Waiting for a refurbishment