Part of the Acorn Archive

Hearts of Oak

 

 

Coaling Depot Ships

Index Page

Temperley Patent Floating Coal Depot

Portsmouth – Coal Depot N^o 1

Swan Hunter Yard Nr 290 - built for The Admiralty in 1903

Specifications

From the Swan Hunter Ships Particulars Notebook.

 

Floating Coal Depot

Yard Nr 290

Owners British Admiralty

Built Wallsend

Length 424 ft x 67 ft 8 3/8 inches x 40 ft

Finished Ship 7,000 tons

Deadweight 12,000 tons

Displacement 19,000 tons

Draft 25 ft

 

Flat bottom, Square bilge and tapered ends. Length of taper 23 ft.

Double bottom 3 ft fore & aft with 2 Wt continuous girders.

Breadth at point 22 ft 6 ins.

Six W T transverse bulkheads.

5 main compartments subdivided by two longitudinal bulkheads into 10 hoppers.

The space between the longitudinal bulkheads forms a 9 ft 2 ins central passage

for working coal and giving access underneath hoppers.

Steel deck 20 lbs forms hopper bottom 7 ft 11 ins above tank top with trap doors for working coal.

Plating carried on 2 longitudinal bars 4 x 3 ½ x 3 x 12.5 lbs

which in turn are carried on I beams 4 ft 4 ins apart 10 x 6 x 6 x 37.5lbs.

Two I pillars under every beam 5 x 5 x 5 x 25lbs. Frames to shell 8 1/2 x 3 ½ x 26lbs at 26 ins apart.

Webframes 24 ins x 20lbs every 4th frame.

Stiffeners to CP bulkheads 7 x 3 ½ x 23lbs at 26 ins apart. Web frame 18 x 20 lbs in centre of each hopper.

Cross bracing in centre of each hopper 12 x 3 ½ x 30lbs.

Down channel 3 side stringer 24 x 20lbs to shell, two side stringers 18 x 20lbs and baffle deck to CP bulkheads.

Bracing between CP bulkheads at centre of hoppers consist of heavy athwartship beams.

Upper deck steel 36-22 lbs over hoppers double thickness.

At ends single thickness 14lbs. Beams 8 x 3 ½ x 22lbs at every frame.

8 fenders at each side 12 x 9. Two hatches to each hopper in all 20 at 26 x 12 ft;

two hatches in centre between trasverse bulkheads 10 in all 26 x 9 ft.

 

Compartments at ends.

After end steeel main deck stringer and WT Lower deck. Two boilers on tank top.

Engines & dynamos on lower deck. bunkers at sides. Two steel chain lockers.

Windlass on upper deck.

 

Fore end

Steel main and WT lower deck. Stores and steel chain lockers below lower deck.

Stores on lower deck.

 

Accommodation.

On main and lower decks for crew of  80.

 

Ventilation under coal hoppers.

10 electric fans for extracting coal dust from below hoppers and discharging it back into the hoppers. By Mechin of Glasgow.

 

Machinery.

Two SE boilers 12ft 9ins dia x 10ft 6ins. Slipway. Separate electrical generating plants.

Clarke Chapman for working transporters windlass etc.

Two electrical windlasses 2 9/16 ins Clarke Chapman.

 

Temperley Gear for working coal.

Four travelling towers each with one fixed and two portable Temperley Transporters.

Twelve special electric windlasses for working transporters and four extra winches for working the towers fore and aft.

Towers travel on steel rails laid on upper deck.

 

Draft Elevation and Plan

 

Draft section

 

 

Source : Swan Hunter Collection

2007 - This collection is not yet open for public use because it has not been catalogued.

With many thanks to Colin Boyd of Tyne & Wear Archives

www.tyneandweararchives.org.uk

 

Raymond Forward