Calendar: 1887-1888 Page 682

686 APPLIED SCIENCES the valves by letters and mention the order in which they are respectively opened and closed Sketch section through steam cylinder with an ordi- nary short slide valve Show in the ports and put the valve in its middle position over them showing the laps on the steam and exhaust sides Explain the effects produced upon the Indicator figure by the amount of the ips re spectively Sketch and explain the mechanism for opening and closing the steam valve of single-acting Cornish pumping- engine Sketch section through locomotive boiler showing tlie construction of the fire box and the method of staving the flat surfaces cylindrical boiler five feet diameter will support steam pressure of twenty pounds per square inch what should be the diameter of boiler of similar material construction and thickness of plate to support steam pressure of 100 pounds per square inch FIRST YEAR Sketch and describe the different methods of arran rin£r cutters' for planing and moulding wood Explain the method of shaping and putting together the staves of wooden casks adopted at Woolwich Arsenal Sketch and describe machine for copying busts What mechanism is adopted for enlarging or reducing from the original size Sketch section through wet-clay brickmaking machine and also section of kiln for burning bricks Describe fully the methods of throwing and of pressing י adopted by potters and illustrate by sketches the applianres which they use for these purposes Describe the method of stereotyping in use at Messrs Clay's printing office