Ty-Rap replaced painful wire lacing with one pull

Aircraft harness work used waxed cord and knots around long runs of wire. The National Inventors Hall of Fame says workers wrapped cord around their fingers to pull it tight, causing cuts and calluses.

Maurus Logan's Ty-Rap changed the operation from tying to threading and pulling. The 1958 patent described a flexible plastic strap for quickly tying insulated conductors into harnesses and securing them to supports.

The design mattered because it was not just a plastic loop. Its ratchet ridges and locking head held tension without extra tools or knot skill, while rounded edges protected both wires and hands.

Make the knot live inside the strap

It converted a variable human knot into a standardized mechanical lock.

The same motion bundled wires and set tension, reducing training and repetitive strain.

Nylon and stainless steel fit aircraft needs: light, corrosion-resistant, and reliable around wiring.

When skilled tying is the bottleneck, embed the skill in the part. The user should pull once, not reproduce the craft every time.

Ty-Rap became the ancestor of the modern cable tie. NIHF describes cable ties as a global fastening category, with more than 30 billion Ty-Rap brand ties produced and billions more made by other manufacturers.