How TinkerToy's Original Wooden Construction Blocks Work

A 1914 patent for a modular toy system using wooden sticks and circular hubs with holes to build complex three-dimensional structures.

What it covers

The invention describes a construction toy consisting of wooden sticks and circular discs or hubs. The hubs feature multiple holes drilled around their perimeter and center, allowing the sticks to be inserted to create rigid geometric shapes. By connecting these components in various configurations, children can build structures like windmills, bridges, or towers. The system relies on the friction between the stick ends and the hub holes to hold the assembly together without needing glue or screws.

What it doesn't cover

• —Does not cover plastic construction systems like LEGO which use interlocking studs.
• —Does not cover magnetic construction sets that use poles and metal spheres.
• —Does not cover motorized or electronic building kits.
• —Does not cover blocks that rely on gravity or stacking alone without mechanical insertion.

The clever bit

The innovation was the use of a standardized circular hub with multiple radial holes, which allowed for non-linear, multi-directional connections that were not possible with simple rectangular blocks.

Why it matters

This patent marks the origin of the TinkerToy brand, which became a staple of early 20th-century American childhood. It represents an early shift toward modular, open-ended play systems that encouraged engineering and spatial reasoning skills in children.

Real-world examples

• 1.Original wooden TinkerToy sets
• 2.Classic mid-century educational building kits