Model Boilers And Boiler Making by Karl Noble Harris

By Karl Noble Harris

9 chapters protecting normal concerns and rules, potency, layout positive factors and basic proportions.

Considers kinds of boiler, equipment of development, flanging & forming plates, mountings & fittings, commencing, annealing, riveting, fuels and firing tools, boiler mountings, protection valves, water gauges, strain gauges, cease valves, steam fountains, clack valves, blow-down valves, regulators, domes, steam creditors and separators, trying out version boilers, attempt pressures, tools of checking out, tube proportions (spacing and format, superheaters and feedwater heaters), version locomotive-type boilers, and boiler designs. contains the tables: houses of saturated steam, calorific values of varied fuels, tube circumferences and floor components, and so forth, gauges and weights of sheet copper, suggested screw threads for pipes and fittings, energy of around copper remains, protection valve sizes, houses of J.M.C silver brazing alloys, boiler evaporation figures.

Many Machinist initiatives, would receive advantages from interpreting this book.

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Model Boilers And Boiler Making

9 chapters protecting common concerns and ideas, potency, layout positive factors and normal proportions.

Considers sorts of boiler, equipment of building, flanging & forming plates, mountings & fittings, taking off, annealing, riveting, fuels and firing equipment, boiler mountings, safeguard valves, water gauges, strain gauges, cease valves, steam fountains, clack valves, blow-down valves, regulators, domes, steam creditors and separators, checking out version boilers, attempt pressures, tools of checking out, tube proportions (spacing and structure, superheaters and feedwater heaters), version locomotive-type boilers, and boiler designs. contains the tables: homes of saturated steam, calorific values of varied fuels, tube circumferences and floor components, and so forth, gauges and weights of sheet copper, urged screw threads for pipes and fittings, energy of around copper remains, safeguard valve sizes, homes of J. M. C silver brazing alloys, boiler evaporation figures.

Many Machinist tasks, would get advantages from examining this book.

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It has interesting possibilities from the model point of view, but the making of the thimble tubes present difficulties, no doubt they could be made in quantity by cartridge producing methods, but this is hardly an amateur proposition. The simplest way that occurs to me is to mount suitable lengths of copper 3mws bed-heater ! rows uparhenta A series of helical coils of skel tube, each of the tums are set in spiral fashion arornd the drum fmm bottom to top. Each coil is itsd off-set as shOWI and each succeswe coil off sat relative to the one below.

I,‘, ,’ ~ BOILERS ‘. :: II’ - ‘, , . I_. ,s BOILERMAKING MODEL BOILERS 6. Above: Vertical solid fuel fired test boiler, bllilt by Mr. J. Merrit to Mr. E. T. Westbury’s design. Note wood strip lagging AND BOILERMAKING 7. Below: ” Model Engineer ” Test boiler with alternative means of firing CONSTRUCTIONAL MATERIALS 33 spaced further apart than three times their diameter, so this really becomes the governing factor in the case under consideration. Model boilermaking like every form of mechanical or structural engineering inevitably involves compromise, and whenever there is any doubt, err on the safe side.

3-9: Vertical field tube, no firebox. ” crowned ‘* bottom Note crowned k$ottom to allow sloped field tubes to sit square to plate Fig. 3-9: Vertical with firebox field tube 40 MODEL BOILERS AND BOILERMAKING Welded filled i wCth ‘/2”D -Outer shall is a steel pressing wrapped outside with high tensile steal tape y Fig. 3-10: Stanley multi-tubular it could be fired by a silent type petrol or paraffin burner, but is really more suitable for spirit or gas king. This boiler, too, should comfortably produce 1 cu.

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