Ads
related to: original wall plugs
Search results
Results From The WOW.Com Content Network
The original wall plug was invented by John Joseph Rawlings in 1911, and marketed under the name Rawlplug. These plugs became popular after the First World War , when a demand for retro-fitting existing buildings with new electric lighting coincided with a shortage of labour, encouraging many new labour-saving innovations in the building trade.
U.S. patent 774,250.The first US power plug and socket dated 1904. Several early American electrical plug and socket arrangements were invented by Harvey Hubbell.On 26 February 1903 he filed two patent applications featuring 2-pin plugs and adaptors for using his plugs with existing designs of lamp sockets and wall receptacles.
The contract led to the invention and patenting of the world's first wall plug, which became a standard solution for attaching things to walls. [1] John Joseph Rawlings, who is credited with the invention of the wall plug, named his product Rawlplug, using the first syllable of his last name, and renamed his business Rawlplug in 1919.
As early as 1885 a two-pin plug and wall socket format was available on the British market. By about 1910 the first three-pin earthed (grounded) plugs appeared. Over time other safety improvements were gradually introduced to the market. The earliest national [clarification needed] standard for plug and wall socket forms was set in 1915.
John Joseph Rawlings (1 June 1860 – 4 August 1942) was a British mechanical engineer and inventor of the wall plug, also known from his name as the rawlplug. He was the founder of the Rawlplug manufacturing company.
At the same time Lundberg were offering the 2.5 A Dot, 5 A Universal, and 15 A Magnum, and Tucker were offering a range of 5 A, 10 A and 20 A plugs and sockets. [27] BS 73 Wall plugs and sockets (five ampere two-pin without earthing connection) was first published in 1915, and revised in 1919 with the addition of 15 A and 30 A sizes. By the ...