42
6"-4"-
6" layer of earth over boards
Door covered with two sheets
5:0
ין!
of corrugated iron and asbestos Two 3-2 wood bars (moveable) a={ across opening for bolting
door closed
SPLINTER-PROOF
SHELTER
Issued by:
The Institute of
Registered Architects
0
/
2 FT
Three 6 dia, holes in outer tube
for admission of concrete
Shelf for medical stores
Hong Kong Builder
AIR-RAID SHELTERS
1/2 boarding Recommended by
TIMBERED TRENCH
Duck boards
Timber Developement Association
1-6 dia pipe as emergency exit
6 "earth turfed
6 concrete
Electric light and for kettle
10
Door
lo'dia.
armour
plate window
4:0 ́section
4-6", 5-0 or 6-0° internal dia.
Length as required
Blast proof splinter- Pesisting, gas and water-tight door
Concrete
Emergency exit
Seat
Sump
Corrugated iron semi-circular sheets each 2-0 wide as centering left in and treated with bitumistic paint
1-0"dia.blast-proof
window
`Removable cover plate
Concrete
STEEL TUBULAR
SHELTER
Adapted from
"Civil Defence" by C.W. Glover M. Inst. C.E.
10
2 3 4 5 6 7 FI.
1/4"plate