Struktiron

Struktiron Construction Sets

Struktiron was a construction system which had strips with long slotted holes. Made in the USA from around 1912 to 1917.

Manufacturer / Distributor

The Ives Manufacturing Company, Bridgport, Connecticut, USA

Info from the Metal Constructional Systems Database for STRUKTIRON

Maker

System Type
Hole pitch >12.7mm

Country
USA

Dates
circa 1912 to circa 1917

Material
Steel

Thread
4-36 (see comment *¹)

Boss Type

Boss Thread
5-40 (see comment *²)

Diametrical Pitch of Gears
40

No. of Parts in System
77

Hole Pitch (Spacing) (mm)
15.9 (see comment *³)

Diameter of holes in Strips(mm)
3.2

Diameter of the Bore in Bosses(mm)
3.3 (see comment *⁴)

Diameter of Axle Rods(mm)
3.0

Types of Nuts and Bolts
Nuts: square
Bolts: round (slotted)
(see comment *⁵)

Material/Finish of Nuts and Bolts
Steel with a Brass finish
(see comment *⁶)

Size of the Nuts across Flats (mm)
7.2

Bolt diameter (mm)
5.9

Comments
3/8" wide Strips with alternate holes & large(round crosshead) slots. *¹But Screwed Rods are .12"x40. *²Not seen. *³Basic hole pitch 5/8" exactly; 25/16" in Slotted Strips. *⁴Mean for Wheels without boss. *⁵Hex Nuts earlier. *⁶Also ? Nickel plated steel.

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Photos of a Struktiron set.
(Added 20/09/2020)