...J S ENYS © Thomas Telford and ICE 1840 ENGINES STAMPING TIN ORES REDUCTION DUTY PERFORMANCE EFFICIENCY STEAM EXPANSIVE MINES MACHINERY CORNWALL UK H3 J u n e 23, 1840. The PRESIDENT in the Chair. John Frederick Bateman mas balloted for andelected a Member. O nt...

... Newcastle coals, the duty of the engine amounted generally to75 millions, and sometimes to as muchas 81 or 82 millions. He thought that 7 Ibs. per square inch for friction and imperfect vacuum was too large an allowance for an engine of the size of that at Old Forda,s, when the speed was 10 to 11...

...J PARKES © Thomas Telford and ICE 1840 ENGINES STEAM FUEL CONSUMPTION ECONOMY POWER CORNISH PUMPING PERFORMANCE DUTY EFFICIENCY MEASUREMENT BOILERS EXPERIMENTS HEAT LOCOMOTIVES RESISTANCE PRESSURE FORCES VELOCITY SPEED PISTONS NON CONDENSING the length of 2318 feet...

...J S ENYS; J FIELD; T WICKSTEED; J PARKES; E COTTAM © Thomas Telford and ICE 1840 ENGINES STEAM FUEL CONSUMPTION EFFICIENCY DUTY SPEED WATER RAISING POWER PUMPS PUMPING CORNISH STROKES BOILERS 15 The abstract of Mr. Parkes's communication having been read, Duty and Mr...

...J S ENYS ENGINES STEAM EFFICIENCY POWER PISTONS DUTY CORNISH ATMOSPHERIC CORNWALL UK © Thomas Telford and ICE 1840 0F CIVIL ENGINEERS. SESSIOiS 1840. Jan. 14. JOSHUA FIELD, V. P., in the Chair. c Observations on the efficiency or gross power of Steam exerted...

..., 1840. The PRESIDENT in the Chair. The following were balloted for and elected Henry Chapman, Alexander Macintosh, as Graduates ; Joseph Horn,RobertSin- clair, Captain P. W. Willis, B. E., Captain Chappell, R. N., as Associates. Duty of Engines. Mr. Cottam, in reference t.o the discussion of a preceding...

...J WATT; J S ENYS � Thomas Telford and ICE 1839 ENGINES ECONOMY CRANKS STEAM EXPANSIVE CYLINDERS EXPANSION PISTONS STROKES EFFICIENCY CORNISH WATER BOILERS DUTY EFFICIENCY EVAPORATION PRESSURE Account of Boring for Water through Granite. By Frederick Holland...

...W J HENWOOD © Thomas Telford and ICE 1838 ENGINES STEAM CORNISH EXPANSIVE ACTION INDICATORS CYLINDERS BOILERS PRESSURE DUTY EFFICIENCY COSTS 13 machinery and boilers were less perfect than at present, prevented him from adopting it. In pumping, then, and in most rotary...

...T WICKSTEED © Thomas Telford and ICE 1838 ENGINES CORNISH PUMPING WATERWORKS WATER STEAM FRICTION EXPERIMENTS DUTY EFFICIENCY COAL OLDFORD CORNWALL UK ? through the h r s likesand; some containslate-rubbish; some coke well, and give out much heat. The weights...

....; of these 154 lbs. were large, t h e smallest of which would not pass a gauge 1s of aninchsquare; 28: Ibs. would not pass a gauge of an inch, and 48& lbs. were small coal and dust. Mr. Wicksteed had taken an account of duty done during three Effect of days by an engine, sixty-inch cylinder, with steam...

...T WICKSTEED © Thomas Telford and ICE 1838 ENGINES CORNISH STEAM TRIALS MINES DUTY EFFICIENCY WATER RAISING CORNWALL UK 2 Captain minghamRailwaya; nd some cardscontainingthecumparative strength of the warm and cbld, registered and common, cordage. T h e...

...T WEBSTER © Thomas Telford and ICE 1837 ENGINES STEAM DUTY ATMOSPHERIC EFFICIENCY 41 gunpowder consumed per cubic yard, in blasting the various kinds of granite, sandstone, &c. ; also the diameter of the augers, or jumpers ; the depths bored, and the quantity of gunpowder proved...

...G H PALMER © Thomas Telford and ICE 1837 STEAM MOTIVE POWER ENGINES CORNISH DUTY COAL FUEL PRESSURE ATMOSPHERIC EFFICIENCY ECONOMY 38 Locomo- tive En- ginerr. Mr. Harrison gave, at the request of the President, some information respecting the fuel and fire-boxes...

...J SIMPSON © Thomas Telford and ICE 1837 MAUDSLAYS & FIELD ENGINES SINGLE ACTION CRANKS WATER RAISING DUTY CORNISH EFFICIENCY 31 base upwards, was the strongest figure andposition ; and that with an edge uppermost was the weakest, for a given quantity of material...

... © Thomas Telford and ICE 1837 ENGINES DUTY EFFICIENCY ECONOMY CORNISH made to occupy 20,328 cubic feet. This may be applieddirectly to raise a column of water, say 35 feet high; that is, 84 Ibs. of coal will, iuthe absence of allfriction,be effective for raising20,328 cubic feet...