Walter Hunt invented the safety pin in 1849.

He crafted it from a single piece of wire, incorporating a coiled spring and protective clasp to safely secure the sharp point, revolutionizing how fabric was fastened without risk of injury.

Invention Story

Picture Walter Hunt, a New York mechanic facing a $15 debt, twisting an 8-inch brass wire in just hours into a genius device. Desperate for quick cash, he patented it as a "dress-pin" on April 10, 1849 (U.S. Patent No. 6,281) and sold the rights to W.R. Grace & Co. for $400—about $15,000 today.

That company later earned millions, while Hunt saw no more profit, highlighting inventors' frequent under-reward.

The patent describes: "a pin made of one piece of wire or metal combining a spring, and clasp or catch, in which catch, the point of said pin is forced and by its own spring securely retained."

Key Design Features

  • Single-wire construction : No joints or hinges for durability.
  • Coiled spring (B) : Provides tension to close the pin securely.
  • Protective catch (D) : Shields the point, preventing pricks—hence "safety."
  • Ornamental bar (C) : Allows decoration without compromising function.

Patent Details

Aspect| Information
---|---
Inventor| Walter Hunt, New York, N.Y.
Assignee| Wm. Richardson and Jno. Richardson
Date| April 10, 1849 5
Number| US6281A 9
Classifications| A44B9/14 (Ordinary safety-pins)

Hunt secured U.S. Patent No. 6,281 for this "dress-pin," emphasizing its safety for clothing, hair, or nursery use.

Historical Context

Before Hunt, straight pins or clasps risked injury; his version offered reusable, safe fastening for diapers, clothes, and jewelry. Englishman Charles Rowley patented a similar design later in 1849, but Hunt's endures today.

No recent inventions or news alter this—it's a timeless 19th-century staple, still mass-produced cheaply.

TL;DR: Walter Hunt patented the modern safety pin (US6281A) in 1849 from one wire with spring and clasp; sold cheap, but it made others rich.

Information gathered from public forums or data available on the internet and portrayed here.