Harvey Hubbell II (1857 - December 17, 1927), was a U.S. inventor, entrepreneur and industrialist. His best known inventions are the electrical plug, and the pull-chain light socket. Image File history File links HarveyHubbell. ... 1857 was a common year starting on Thursday (see link for calendar). ... December 17 is the 351st day of the year (352nd in leap years) in the Gregorian Calendar. ... 1927 (MCMXXVII) was a common year starting on Saturday (link will take you to calendar). ... For other uses, see United States (disambiguation) and US (disambiguation). ... An inventor is a person who creates new inventions, typically technical devices such as mechanical, electrical or software devices or methods. ... An entrepreneur (a loanword from French) is a person who undertakes and operates a new enterprise or venture and assumes some accountability for the inherent risks. ... It has been suggested that this article or section be merged into Business magnate. ... CEE 7/7 plug and socket This article covers only plugs and sockets intended for common domestic use. ...

In 1888, at the age of thirty-one, Hubbell quit his job as a manager of a manufacturing company and founded Harvey Hubbell, Incorporated, which is still in business today. Hubbell began manufacturing consumer products and, by necessity, inventing manufacturing equipment for his factory. Some of the equipment he designed included automatic tapping machines and progressive dies for blanking and stamping. One of his most important industrial inventions, still in use today, is the thread rolling machine. He quickly began selling his newly devised manufacturing equipment alongside his commercial products. 1888 (MDCCCLXXXVIII) is a leap year starting on Sunday (click on link for calendar) of the Gregorian calendar or a leap year starting on Tuesday of the Julian calendar. ... Taps and dies are generally metalworking tools for the creation (cutting) of screw threads in metal parts. ... A die is a tool used in the manufacturing industry to create a wide variety of products and components. ... Power press with a fixed barrier guard A press, or a machine press is a tool used to work metal (typically steel) by changing its shape and internal structure. ... Screw thread, used to convert torque into the linear force in the flood gate. ...

Hubbell received over 45 patents, most were for electric products. The pull-chain electrical light socket was patented in 1896, and his most famous invention, the electrical power plug, in 1904. This invention eliminated possible mis-wiring and the need to hard-wire electrical devices to their power source. 1896 (MDCCCXCVI) was a leap year starting on Wednesday (see link for calendar). ... 1904 (MCMIV) was a leap year starting on a Friday (link will take you to calendar). ...

References

1. U.S. Patent #565,541, Socket for Incandescent Lamps
2. U.S. Patent #774,250, Separable Attachment Plug

External links

• Hubbell.org bio
• Company website history