BAIRD &TATLOCK. (LONDON) LTD. 



4775 



4774-4775 



4776 



4779 

 Simmance-Abady Laboratory Meters. 



4781 



4777 



4784 



These meters are for the accurate measurement of gas or air in a Variety of sizes and case materials as follows : 



A. In tinned steel, japanned inside and out, and polished outside. 



B. In copper, ditto. 



C. In cast-iron, japanned suitable colour. 



D. In incorrodible porcelain, enamelled royal blue so as to be absolutely impervious to rust, acid or foul gas, and 



can be used for the passage of absolutely clean air. 



The case materials C and D are only used for the smaller meters, but the illustration Fig. 4774 shows the general design of all 

 sizes. Each meter has a foot with levelling screws, plumb bob, cast brass water line sight box with removable lunette glasses 

 (opal at back, clear gtass in front) ; thermometer in brass case, accurately divided dial with polished brass bezel. Each meter 

 has emptying plug, drain from spout, bell metal spindle and bearings carrying block tin drum ; inlet and outlet unions. The 

 capacities are plainly stated in the list on page 873, and illustrations of some of the dials are also shown above. 



CROSS STREET HATTON GARDETST, E-C 



872 



