Double walled mini volcano kettle
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Here's a patented 'Sirram kettle' complete with integral water carrying jug from the postwar years.
Look familiar?
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"SIRRAM is MARRIS backwards, heres a bit of info I gleaned from the internet about this kettle, very rare to come across a second hand one for sale apparently.
Marris's Ltd diversified from producing brass fern pots and bedstead knobs to picnic ware in 1906 (sales £3,000pa) using the brand name Sirram. I don't have any product details as to when aluminium was used instead of brass for the methylated spirit stoves. The burner itself was always brass. Leatherette covered Picnic outfits were developed soon after WW1 as a fashionable accessory to the motor cars of that era and remained in production until the early 1970's.
Father was shown a brazed copper Volcano kettle in the early 1930's by, I think, a New Zealander. He quickly saw the merit of the design and after a lot of experimentation made it in aluminium and patented it. The body and the liner were spun from discs of sheet aluminium. There were only two craftsmen in the Birmingham factory who could do this and only one of those who could put the two parts together without them leaking! The other problem at that time was obtaining aluminium without any inclusions, which would only manifest themselves when the stove was used in the form of pin holes. Ireland was a big market for them.
They were advertised as boiling three pints in three minutes using one copy of the Times, which was a great deal smaller in those days. Halfords were the largest customer for all the stoves.
Production of all the Sirram stoves finished about 1970 when the French Bluet stove arrived with its little blue gas cylinders."
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