BAIRD &TATLOCK (LONDON) LTD. 



3080 3081 



5080- Plug for Cylinder Valve Socket 



3082 



3083-3084 

 each 1 



This plug is useful to prevent injury to a valve socket. It can be screwed in and out of the valve socket 

 iy means of the ordinary valve key. It is not supplied with hired cylinders. 



5081' Fine Adjustment Valve, large pattern 



Can be obtained on hire at the cost of 6d. per week. 



each 070 



3082' Fine Adjustment Valve, small pattern 



These valves are not automatic pressure regulators, and consequently must not be used for double lantern 

 .vork. They can only be employed as substitutes for the nipple and union connection, but for this purpose 

 ithey are useful. They give a more delicate means of adjusting the flow of gas from the cylinder than the ordinary 

 Cylinder valve. After they are connected to the cylinder valve the latter may be left open, and all subsequent 

 regulation can bo effected by the fine adjustment valve. Care must, however, be taken to see that no leakage 



is occurs either in the socket or round the spindle of the cylinder valve. 



The cylinder valve should be closed as an additional precaution against leakage when the cylinder is not 

 .n use. 



3 



3083' Gas Pressure Gauge, 4 in. diameter . . . . . . . . . . each 



084- 3 .. 



These pressure gauges are useful to frequent users of oxygen cylinders, and particularly to agents, as a 

 .means of ascertaining the quantity of gas in cylinders. They are connected to cylinders in the same way as 

 ihe nipple and union. 



The gauges, as illustrated, are specially marked in atmospheres and feet, and the cubic contents of any 

 .ylinder may be readily calculated in the following manner : 



The figures on outer ring indicate pressure in atmospheres, 120 atmospheres being the pressure to which 

 Jl cylinders are charged. 



The figures on inner ring indicate the number of cubic feet of gas contained in a zo-ft cylinder. To calculate 

 the quantity of gas contained in any cylinder, multiply the figure to which the needle points by the multiple of 

 in. thus, if the gauge is attached to a 4o-ft. cylinder, and the needle points to 6, then 6 by 4 = 24 ft. = quantity of 

 ..is in cylinder. 



Both types of pressure gauge are fitted with safety checks in the stem to prevent a sudden rush of gas into 

 the gauge tube when the cylinder valve is opened. 



Not being makers of pressure gauges, we do not guarantee these articles in any respect. They 

 uc only supplied subject to the purchaser accepting all risk (if any) in respect of them. 



060 



1 10 

 150 



Hydrogen and coal gas cylinders are fitted with left-hand 

 ibove fittings are required for these cylinders. 



thread. Please state when any of 



CHEMICAL AND SCIENTIFIC APPARATUS AND PURE CHEMICALS- 



