10 



Equipment oJ the Class Rooms. 



No. r.o.'Ui - 





_ 

 50003, 50019, 50021. 1 : 14. 



any way damaging the table top. The body of the table is built of pitch pine, is stained and var- . s. 

 nished and has an oak fillet at the base. The inner sides and the bottoms are of deal. With a length : 

 of 4 m. the table has 8 drawers, 2 cupboards, one box for waste paper, etc., 1 drawer for glass tubes, 



1 wall bracket for taking gas burners, 2 tube flaps; gas supply pipe with 3 taps having unions bent 

 upwards to prevent tearing of the hose; also 1 tap for the heating arrangement, and 1, having a wide 

 bore, for combustion furnaces, for filling the gasometer, etc. There is also a water supply pipe, with 



2 screw down taps (one being screwed for the hose pipe); 1 Length of piping fitted with 1 tap, for 

 suction air; 1 length of piping with 1 tap and a hose support, for compressed air; There are 2 porcelain 

 sinks in the table top with strainer let in and with lead waste pipe. One stoneware draught channel 

 for gases and noxious fumes, 1 heater for electrical apparatus, a cavity for working with mercury, 

 1 pneumatic trough (zinc), with direct water outlet, overflow, outflow valve and bridge for suspending; 

 1 electric lead, with two wood covered rails let in the table top, these rails having plug holes every 

 25 cm. These holes take the 4 plug terminals with insulated handles which are supplied with the 

 table. A terminal connected up to the water supply pipe serves to make a good earth. The covers 

 for the sinks and the draught pipe are constructed of iron and are let into iron rings. The lid of the 

 pneumatic trough consists of a slate slab. The latter cover, and also the lid of the mercury trap and 

 heater are lifted off by means of detachable handles. 



All pipe lines are laid ready as far as the floor. 



Special Fittings for above Lecture Tables. 



The special fittings can only be supplied at the prices quoted when 

 they are ordered at the same time as the lecture table. When 

 fitted later (if this is at all feasible) the price undergoes a substantial increase. 



Extension Leaf. 



Extension Leaf 50 80 cm long 



/ List No. 50,011 50,012 



\ Price 1. 1. 1. 8. 



List No. 50,013 50,014 



Price 1. 9. 2. 1. 



d. 



Oak 



Teak 



The table can be lengthened at one or both of the narrow ends by flaps 50 or 80 cm. in length, 

 moving on hinges. The additional leaves are supported by lateral struts, and the former can be let 

 down when this is so desired. Leaves can also be added to the longitudinal sides of table to widen it. 



For staining the table top an acid proof black the extra cost per running metre is 



0. 3. 6 



Cl. :i. 



