Standard Clowes' Lamp

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Standard Clowes’ Hydrogen Lamp

This style of Clowes’ Hydrogen Lamp was the  most common variety used.  It has several differences compared to the earlier version.  While larger and more heavier duty, it is not made as precise.  The major changes are in the way the cylinder mounts.  First, the gas connection to the font is a threaded locking system instead of a potentially troublesome bayonet system.  The cylinder mount below the bonnet is a simple notched bracket instead of a spring loaded device.  Also, notice that the mount is adjustable to account for thread wear.  In short, this design was obviously more practical for rough service then its predecessor.

The only marking on this lamp is on the cylinder.  It is marked with a stamped brass tag that reads “Clowes & Redwood’s Patent  W. J. Fraser & Co.  Commercial Road East  London”.  The lamp portion was probably made by Stanley of Derby.  Circa 1900-1920.

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