 | 1817 - 382 pages
...proper precaution, fixed at the distance of j or \ of an inch above the first top. The gauze cylinder should be fastened to the lamp by a screw of four...and the security depends upon the circumstance, that * If the wire of •£$ i* found to we.ir out loo 50011 in practice, the thickness mi, be encreased... | |
 | 1817 - 364 pages
...proper precaution, fixed at the distance of f or | of an inch above the first top. The gauze cylinder should be fastened to the lamp by a screw of four...and the security depends upon the circumstance, that * If the wire of yV is found to wear out too soon in practice, the thickness may be increased to any... | |
 | Andrew Ure - 1821 - 512 pages
...above «be ftnt top. The gauze cylinder should be fastened te the lamp, by a screw of four or rive turns, and fitted to the screw by a tight ring. All...the apparatus, larger than in the wire gauze. The puris of the lamp are, 1. The brass cistern which contains the oil, pierced near the centre with a... | |
 | Luke Herbert - 1824 - 394 pages
...top is always a proper precaution, fixed 3, or I of an inch abovxethe first top. " The gauze cylinder should be fastened to the Lamp by a screw of four...be made with hard solder; and 'the security depends updn the circumstance, that no aperture existB''in the apparatus, larger than in the wire gauze." *... | |
 | Stephen Glover - 1829 - 600 pages
...proper precaution, fixed one half or three quarters of an inch above the first top. The gauze cylinder should be fastened to the lamp by a screw of four...five turns, and fitted to the screw by a tight ring. AU joinings in the lamp should be made with hard «older ; and the security depends upon the circumstance,... | |
 | 1839 - 518 pages
...fixed at the distance of naif or three-quarters of an inch above the first top. ' The gauze cylinder should be fastened to the lamp by a screw of four...solder; and the security depends upon the circumstance '.hat no aperture exists in the apparatus larger than in the .vire gauze.' The annexed figure of the... | |
 | 1839 - 1004 pages
...fixed at the distance of .lalf or threc-quarlers of an inch above the first top. 'The gauze cylinder should be fastened to the lamp by a screw of four...solder; and the security depends upon the circumstance :hat no aperture exists in the apparatus larger than in the .vire gauze.' The annexed figure of the... | |
 | 1839 - 518 pages
...fixed at the distance of lialf or three-quarters of an inch above the first top. 'The gauze cylinder should be fastened to the lamp by a screw of four or five turns, and fitted to the screw by a light ring. All joinings in the lamp should be made with hard solder; and the security depends upon... | |
 | 1839 - 1000 pages
...fixed at the distance of half or three-quarters of an inch above the first top. 'The gauze cylinder should be fastened to the lamp by a screw of four or five turns, and fitted to the screw by a tigh< ring. All joinings in the lamp should be made with haul solder; and the security depends upon... | |
 | 1839 - 526 pages
...three-quarters of an inch above the first top. ' The gauze cylinder should be fastened to the lamp b\ .screw of four or five turns, and fitted to the screw by a li¿.¡. ring. All joinings in the lamp should be made with L... i solder; and the security depends... | |
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The gauze cylinder should be fastened to the lamp by a screw of four or five turns, and fitted to the screw by a tight ring. All joinings in the lamp should be made with hard solder ; and the security depends upon the circumstance that no aperture exista... 
