SIMPSON DENNISON Tandem Compound Launch Engine
£ P.O.A.
Cylinder dimensions:
2½” + 4½” x 4” stroke
Overall engine dimensions: 31 inches high, 17 inches wide and 16 inches deep.
A reversing marine engine with tandem compound cylinders, Stephenson slotted link valve gear,
crosshead-driven feed pumps, lubrication system, draincocks and mahogany lagging.
This very rare engine by Simpson Dennison of Dartmouth was built 1885, prior to the company name change to Simpson Strickland & Co.
Related Items
RANSOMES, SIMS & JEFFERIES Compound Marine Engine
With Radial Valve Gear
Approx 35 H.P.
~ Built c1905 ~
Complete with boiler, propeller and auxiliaries.
For sale in good, original condition.
REIDS Twin High Pressure Marine Engine
By Reids of Glasgow, c1900.
2.5″ + 2.5″ x 4″ Cylinders
Slide valves with link reversing gear.
For sale in good condition.
SOLD 
£5,500.00
TWIN HIGH PRESSURE Marine Steam Engine
3″ + 3″ x 5″ Cylinders.
Approx 30″ High.
An English factory made marine steam engine with slide valves and Stephenson Link reversing gear.
On cast standards and fitted with later toothed flywheel for belt work. For sale complete and in good condition.
SOLD 
£3,500.00
LACK Single Cylinder Launch Engine 4″ x 4″
Approx 4″ x 4″ Cylinder
Base 18″ x 14″, 32″ high overall.
Slide valve with link reversing gear.
An attractive single cylinder steam launch
engine on turned columns with
attached boiler feed pump.
Solid disc flywheel.
Wt approx 70 Kg.
In good, restored condition.
SOLD
Single Cylinder Marine Engine 3½” x 2″
Approx 3½” x 2″ Cylinder
An attractive single cylinder high speed
piston valved marine engine on four turned columns.
With a solid disc flywheel.
Wt approx 90 Kg.
For sale in good condition.
TWIN HIGH PRESSURE Marine Engine
2″ + 2″ x 4 1/4″ Cylinders
29″ High, Base 12″ x 12″.
Solid disc flywheel.
In good condition.
OUTRIDGES PATENT Rotary Steam Launch Engine
This is an extremely rare, vane type reversable steam engine of around 4 – 5 H.P. believed made to Outridges patent in the mid 1880’s.
Designed for small, high speed river launches, these rotaty engines were claimed to provide an excellent power to weight ratio and to achieve the then unheard of speed of 12 1/4 m.p.h!
WILLANS 3 Cylinder Steam Launch Engine
~ A ‘modern’ design, built 1880’s ~
This is a very rare, if not unique enclosed type marine engine with reversing gear.
2″ x 4 1/2″ Cylinders ~ Approx 30″ High.
A very rare small enclosed marine steam engine.
Designed for a small steam launch.
In good original condition.