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Title: |
1891 Article-Charles Burrell & Sons, Ltd., 10 Ton Compound Steam Road Roller |
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Source: |
The Engineer Magazine, 08 May 1891 pg. 367 |
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Insert Date: |
2/26/2013 3:42:26 PM |
10-TON STEAM ROAD ROLLER
The accompanying engraving illustrates a new 10-ton steam roller which is fitted with Mr. F. Burrell‘s patent single-crank compound cylinders, so as to make as far as practicable a noiseless engine, and at the same time one which effects a saving of 30 per cent. in fuel and water. An endeavour to combine the best practice in modem rollers with many important improvements of detail has been made. The extreme width over the hind rollers is 6 ft. 3 in. The tank contains enough water for about two hours, and the boiler steams freely on coke. The front rollers are carried by an improved fork and universal joint. The latter is made of steel and strongly supported by the top casting, in which it works, and is secured to the main fork by a cross pin with an exceptionally long bearing, so as to give great steadiness and avoid undue wear. The design provides for ample movement of the fork in passing over rough ground. The boiler, shafts, and gearing are of steel.
The bearings throughout the engine are of extra width, so as to reduce wear and tear to a minimum. The cylinders are 5 in. and 9 in. diameter, and a live steam valve is fitted so as to be used if required; but this is seldom necessary, as the engine is as easily handled as the ordinary single engines. The chief difference is that there are two extra glands to pack. This compounding of steam rollers makes them noiseless when at work, and avoids the objectionable snorting which tends to frighten horses upon highways and in towns.
The handles are conveniently arranged so that the driving and steering are easily under the control of one man. The roller can turn round in little more than its own length The ?y-wheel is arranged for a belt to drive backwards clear of all obstructions when mired for stationary purposes, such as driving a stone breaker, &c.
The engine is also fitted with a No. 4 Gresham's injector and a powerful brake placed conveniently near the driver's hand. All pipes are of copper, with brazed connections. The boiler tubes are arranged so as to be easily swept. The rollers are cast with an extra length forming a riser, which is afterwards turned off, so as to insure uniformity of wear and soundness of the rolling surfaces; they are made of specially hard and tough cast iron. Great attention has been given to all than details, and the workmanship throughout will be found such as to maintain the reputation of the firm.
Image Courtesy of Grace's Guide.
http://www.gracesguide.co.uk/File:Im1891EnV71-p367.jpg |
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1891 Charles Burrell & Sons, Ltd., 10 Ton Compound Steam Road Roller
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