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The Colombo Planetarium
by night is indeed beautiful picture, a many splendoured thing.
It was selected from amongst a number of pictures of Dr Kulasinghe's
many spectacular achievements to adorn the front cover of this
Felicitation. Volume.
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large
diameter cylindrical piles and sinking them with the use of a combination
of percussion arid water jet for core excavation and air-lift for removal
of the soil.
 A
reduction gear-box, which is very compact and capable of a very high
reduction ratio with a good efficiency in transmission.
Developments
in the use of rubber in the manufacture of various types of pumps ranging
from large sand pumps for high resistance to abrasion, down to small
pumps for domestic use where the use of rubber has resulted in economy
and greater durability especially against wear and corrosion.
Peristaltic
Pump using a rubber diaphragm instead of the rubber tube normally used.
This results in a simple mechanism and also eliminates dependence on
the spring back of the rubber tube for suction. This pump can be used
conveniently for tube wells and similar locations where complete submergence
is necessary.
Peristaltic
pump which avoids the pinching roller running over the tube.
A
completely new type of positive displacement pump using only rotary
action which can be used for high pressure duties as in Hydrostatic
systems for pumping water or for use as a compressor. This pump can
also be worked as a motor with high-pressure oil or medium pressure
water or compressed air. This has very high potential in hydrostatic
transmission both high pressure and medium pressure and in the compressed
air field.
A
4 ft. span corrugated clay-roofing tile.
A
fluidic controlled pneumatic clay cutter for clay extruders.
A
cheap machine for casting hollow floor slabs on the long line of prestressing.
End product is similar to "Spiroll" slabs hut machine is cheaper
in first cost and in maintenance.
Flexible
inflatable rubber core for forming ducts for prestressed concrete, capable
of bending into tendon profiles but avoiding wobble common with conventional
inflatable cores.
Insulation
boards, hardboard, etc. using coir fibre waste.
Cement
bonded fibre sheets for cladding and roofing.
Structural
members made of cement bonded coir fibre.
Heavy
hydraulic presses constructed in prestressed concrete.
'Wirecon"
a high strength concrete giving high flexural strengths for construction
of electric over head travelling cranes etc.
"Wirecon'
concrete boat hulls (different to "Ferro cement" of Nervi).
Simple
crane crab giving inching, medium and high lifting speeds without change
Speed
gearboxes or variable speed motors.
Manufacture
of prestressed clay roof purlins.
Development
of "Hydrokinetic" drives for powering winches, cutter, etc.
in Cutter Suction Dredgers. This replaces electric or hydrostatic drives.
"Tetra-cyl
- The development of a concrete armour block for the protection of breakwaters
and coast protection works, etc.
Panels
for water tanks using thin GRP membrane in tension.
New
type of manhole cover for sewer manholes and cable manholes.
PAPERS
Cement Gun Repairs
to coaling jetties in Colombo (Engineering Association of Ceylon - 1949).
"The
Application of Prestressed Concrete in Maritime Structures" - (Engineering
Association of Ceylon - 1954)
"Prestressed
Concrete in Sri Lanka, some typical examples". (Journal of the
Institution of Engineers, India - 1955)
"Precast
Cylindrical Shell Roofs" (Presented at the International Symposium
on Shell Structures, OSLO - 1957)
"The
Development of Prestressed Concrete in Ceylon" (Presidential Address
to Section C. Sri Lanka Association for the Advancement of Science -
1958)
"Umbrella
shaped Hyperbolic Paradboloid Shells with Prestressed Edge Beams"
(Presented at the International Symposium on Shell Structures, MADRID
- 1959)
"An
Indigenous system of post-tensioning for prestressed concrete Institution
of Engineers, Ceylon 1959 (Co-author L J Weeraratne)
"Recent
developments in Prestressed Concrete in Sri Lanka", (Journal of
the Institution of Engineers, India - March, 1960)
"Precasting
of long saddle shaped Hyperbolic Paraboloid Shells on the long line".
(Discussion paper presented to the World Conference of Shell Structures,
San Francisco - 1962).
"Design
and Construction of the Planetarium Building in Colombo". (Paper
presented at the World Conference on Shell Structures, MEXICO 1967)
Co-Author T. A. Ranaweera.
"National
Report to the ESCAFE Conference on Industrialized Building", (Copenhagen
- September, 1968 in capacity of Consultant to the Conference)
Presidential
Address to the Institution of Engineers, Sri Lanka - 1969. "Contributions
to Engineering Development in Sri Lanka"
Presidential
Address to the Sri Lanka Association for the Advancement of Science,
1970. "Some Contributions to Engineering Research and Development
in Sri Lanka".
"National
Report to the Conference of Directors of Building Research in ESCAPE
Regions". (Melbourne and Sydney - March, 1971)
"Prestressed
Concrete in Industrial Buildings in Sri Lanka". 1972. Silver Jubilee
Publication
Research for Building Industry (1947 - 1972) by the Central Building
Research Institute, Roorkie, India.
"Development
and application of Ferro cement in Sri Lanka and Malaysia". Paper
presented to the Workshop on Introduction of Technologies in Asia -
Ferro cement:
A Case Study - November 5 - 8, 1974, Bangkok, Thailand.
"Rice
husk fueled cement" - Paper presented at the 1981 Annual Sessions
of the Institution of Engineers, (Sri Lanka). Co-author Dr. Susil Weeraratne.
"Inverted
Conical Shell Roof for Long Clear Spans" Paper presented at the
International Conference held in Bangalore. India in 1988.
"Design
and Construction of Mahaweli Mahaseya". Paper presented at the
International Conference held in Bangalore, India in 1988.
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