Thunder, Flush and Thomas Crapper: L


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Thunder, Flush and Thomas Crapper
Extracts from Adam Hart-Davis's book.
(Buy the book from Micheal O'Mara Books, ISBN 1-85479-250-4, hardback 1-85479-245-8, or in the US, ISBN 1570760810.)
DHD Photo Gallery---The Photo Lav
Lavatory
For at least 500 years a lavatory was a room for washing, a basin, a bath, or a laundry.

After about 1850 (OED) lavatory came to mean also a receptacle into which a person can urinate or defacate. In the sanitaryware business today, a lavatory is a wash-basin; a bowl for excretion is a closet; see euphemisms.

Lighting-up Loo
Women are apparently irritated by men leaving the seat up; so some bright spark in the USA has invented a loo that lights up in the dark. When the infrared sensor detects a person approaching, the light glows green if the seat is down and red if it is up.

Locks
The locks on lavatory doors---at least the kind with a rack and pinion that moved a label to say ENGAGED when the lavatory was occupied---were invented by Arthur Ashwell. He took out a patent in 1882 (No 781), and another, for an improved version, in 1885 (No 6928). The improved mechanism was better designed and easier to fit. Furthermore it not only incorporated a hidden spring ``which renders the action of the bolt smooth and noiseless'', but also allowed for notches to be included for locks on board sea-going vessels to ``remove the liability of the bolt to be shot or withdrawn by the rolling of the vessel at sea''.

London
In 1995, according to the Evening Standard, Greater London boasted 3,226,909 household lavatories, but 13,816 households had no inside toilet.


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Chapters: A B C D E F G H I J K L M N O P R S T U V W Y Z


Text extracts from ``Thunder, Flush and Thomas Crapper'' copyright Adam Hart-Davis 1997.
Images available from the DHD Multimedia Gallery.
Site content copyright Damon Hart-Davis 1997--2008 unless otherwise stated.