Streets and Roads - Leatherhead - Kingston Road

ATHERTON AIRCRAFT LTD.
Atherton Aircraft Ltd., Brook Way, Kingston Road, Leatherhead are general machinists with emphasis on the supply of machined castings both in Ferrous and Non-Ferrous materials. Air Registration Board approval has recently been granted and the company are able to undertake a wide variety of work ranging from 3/4 inch dia Capstan Lathes up to 4 feet dia Centre Lathe with the usual facilities for Milling, Drilling, etc.

Facilities are also available for Horizontal Boring, Large Internal Grinding, Shot Blasting and Metal Spraying. A recent addition to their activities has been made by the installation of a medium size Hydraulic Planing Machine. A variety of Cast Steel Plummer Block Type Bearing Housings are also available.

STEWART AUTOMATIC BOILERS LTD.
Stewart Automatic Oil Fired Boilers have been specifically designed for high efficiency oil firing and are complete packaged units fired with a specially matched pressure jet gun type burner thoroughly proved and tested.
Combustion Chamber
The Stewart Oil Fired Boiler has a large combustion chamber as well as a large access door which allows easy placing, inspection and maintenance of the refractory firebricks.
Heating Surface
The tubular heating surfaces directly surmount the combustion chamber and are equipped with patented turbulators which offer little resistance to the passage of the gases. The loss of power during normal running does not exceed 1/25" WG.
This boiler only requires a low depression in the chimney-03" to -04" WG.
This allows less importance to be attached to the chimney in relation to its draught manufacturing properties. In existing constructions a good result can in many cases be obtained with chimneys which would very often be considered unsuitable. The continuous upwards flow of the gases avoids to a considerable extent condensation which can be produced each time the burner is started and stopped.
Compactness
By virtue of the heating surfaces being so compact the size of the boiler is small in proportion to its output. This therefore allows reduction in size of the space required for the boiler room with a consequent reduction in capital cost.
Cleaning
All heating surfaces are easily accessible and easy to clean.
Automatic Oil and Solid Fuel
The Stewart Boiler, although specially designed for oil, can be converted for the use of solid fuel, either by means of a gravity feed pre-burner unit or underfeed stoker, or by using the opposite end to which the oil burner is fitted. Alternatively, the boilers can quickly be fitted with fire bars and grills for the use of large coal or or coke for hand firing by natural draught.
Flow and Return
These can be preset or provided wherever required, either at the front or back of the boiler to a desirable working diameter for gravity or forced circulation.
Chimney or Flue Connection
The return towards the main chimney stack is normally at the back of the boiler, but this can on request be placed at the front or side outlet.