Zip
device · 1913 · Electric age
A fastener of teeth joined by a slider (Sundback).
Inventor: Whitcomb L. Judson.
What it is made of
- Wedge — has part. The slider works like a wedge, bringing the teeth together and pushing them apart.
Principles and materials it uses
- Brass — is made of. Brass teeth.
Where it is used
- Jeans — is part of. A zip.
- Bag — is part of. A zip.
- Backpack — is part of. Zips.
- Wallet — is part of. A zipped coin compartment.
- Trousers — is part of. A fastener.
- Wetsuit — is part of. A zip on the back.
History: what it evolved from and what it influenced
- Hook and eye — evolved from. Judson started with a chain of hooks.
Things built in a similar way
- Button — works like. An alternative way of fastening.
- Hook-and-loop fastener — works like. An alternative fastener.