From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Evaluation of a sample 'Clayton Heater' interior car heater from Clayton Dewandre Co. Ltd. of Lincoln.
Identifier | ExFiles\Box 137\1\ scan0122 | |
Date | 3rd September 1932 | |
X4300 R.{Sir Henry Royce} From Ha/Lid.{A. J. Lidsey} c. to DG. c. to WAH. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Hy.{Tom Haldenby - Plant Engineer} INTERIOR HEATERS. We have obtained, at the request of Sales, a sample interior car heater known as the 'Clayton Heater' which is manufactured by the Clayton Dewandre Co. Ltd., of Lincoln. These people manufacture heaters for motor coaches and we understand that the majority of the long distance motor coaches are equipped with their heaters. The heating unit consists of a hot water radiator fitted with a 'Clayton-Still' wire wound tubing element and is provided with an electric air circulating fan as an integral part of the unit. Engine water is circulated through the heater; one pipe being connected to the cylinder head and the other to the suction side of the water pump. Ample circulation is provided by this means and owing to our use of thermostatically operated radiator shutters the circulating water is kept at constant temperature and reaches this temperature quickly when starting from cold. The makers provided either a thermostatically operated or hand operated valve which fits into our top water pipe and which regulates the temperature of the water circulating through the heater. We do not approve of this fitting however as it restricts our engine water circulation and does not appear to be necessary because our radiator shutters do the same job. The speed of the motor which drives the air circulating fan can be varied by means of a control switch. A report on the electrical side of the apparatus is attached herewith. We also attach curves showing the rate at which the heater warms up the interior of a car, the engine being started up from dead cold. | ||