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Cliro Construction Sets

Cliro was a construction system that used rods held together by clamps. It was made in the UK from the late 1940s to the early 1950s.

Manufacturer / Distributor

Schofield & Schofield, London, UK

Info from the Metal Constructional Systems Database for CLIRO

System Type
Mainly Rods/Tubes
United Kingdom
1949 to 1950s (some significant doubt)
Aluminium (Alloy)
3x (approximately)
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: round (slotted)
(see comment *1)
Material/Finish of Nuts and Bolts
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Rods held by clamps with rectangular in-fill Plates. *1 Hex Bolt shown but said to be square.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

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The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

There are currently no manuals, leaflets or photos etc. available for downloading. If you can supply any, please get in contact with me.