41
In view of the fact that the final drives are by fast and loose pulleys, squirrel cage A.C. motors and shunt wound D.C. motors are necessary. As the machines will also be required to operate in the open air the motors should be of the drip proof type.
1
ALTERNATIVE DRIVE BY PETROL ENGINE.
- Lister 64 h.p. Single Cylinder Stationary Type Petrol Engine, speed 500 r.p.m., fitted with High Tension Magneto and Cable, Fuel Tank and pipes, water cooling tank with pipe connections and three-way cock, Sheet Metal Silencer and short pipe, Pulley size 10 in. diameter x 7 in. face, Starting Handle, Tin of lubricating oil and the usual Tools and Spares.
Price
£50 0 0
The above price is subject to a discount of 331% and includes for packing and delivery f.o.b. English Port.
OIL HEATER.
1-4 gallons capacity Genuine SIEVERT "SERPEN- -TINE" Container No. 17 for Paraffin, fitted with large and powerful Hand Pump, Pressure Gauge and one-way Connector with valve
1- Pot Burner
£8 5 6
£2 6 0
1
10 ft. Length of Flexible Metallic Tubing with unions complete
£1 17 6
1- special Coupling between Burner and Tube unions,
approximately
£0 7 6
Less 10 per cent. special rebate, which includes packing and delivery free,
less 24 per cent. for cash. Delivery: ex stock, if required.
This apparatus forms a complete unit and it will simply be necessary to make provision for the tripod as shewn. The consumption of the fuel on the above apparatus would be approximately 5 pints per burner per hour, at a pressure of about 2 atmospheres, which would probably be ample for normal purposes. A higher pressure may of course be generated and used, say 3 or 4 atmospheres, if desired, the result being a more intense flame but a propor- -tionate increase in fuel consumption.
It will be appreciated that depending upon the pressure, the intensity and volume of the flame, an ample clearance, say 7 to 10 in. between the top of the burner and the bottom of the vessel to be heated must be maintained so as to prevent any possibility of the flame beating back on to the burner itself, which naturally would have a deteriorating effect on the metal.
Messrs. Trinidad Lake Asphalt (Overseas) Ltd., have designed a suitable layout of emulsion plant, set up complete with a mechanically agitated kettle (see Plate XXII). The kettle is placed on a suitable stage in order that the asphalt may be discharged direct from the measuring tank into the emulsion mixer, while this in its turn is raised sufficiently to allow of a barrel or other receptacle to be placed under the drain-off cock to draw off each batch when completed.
19
No comments yet.
Private notes are available after approval.