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Work Tables for Students. 



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50 362. 1 : 20. 



a knob on the lecturer's side, r the catch is released and the slab rises automatically and remains firmly 



in this position. 



1 Sandstone Slab on which to set combustion furnaces, etc. 



1 Device for Raising and Lowering Mercury Troughs by means of worm wheel and rack. 

 2 Large Draught Flues, closed by a cover. 

 2 Large Sinks and two smaller ones for taking water hoses. 

 1 Device for conducting gases under a large glass bell closed by mercury. 

 1 Terminal for 300 amps, for the electric melting furnace, with knife switch and 2 connecting cables 



1.50 m long. 

 1 Lecture Desk of teak. 

 1 Contrast Background and Mirror Device. Xo. 511.355 (see p. 65). 



d. 



Laboratory Tables, etc. 



50.361. Students' Work Table for Physics and Chemistry (as suggested by Prof. Einkel), Price on 

 Figure, as supplied to the High School of Commerce, Cologne ......... appli- 



The table takes the form of a work table, standing alone, for erection in the middle of the 

 work room. It is 3.50 m long. 1.4o in wide and 80 cm high. The body is of pitch-pine, having bottom 

 beading of oak, and has on each of the long sides 8 drawers with shell handles ; the drawers are arranged 

 in two vertical rows, the upper row of drawers being divided into compartments. The rows are num- 

 bered consecutively and lock separately. The top is of oak being 30 mm thick and composed of frame 

 and pannellings. In the centre there is a water trough 60 cm long, 50 cm wide and 50 cm deep let into 

 the top. The trough is lined with sheet lead, and has a lead overflow, also waste valve. In the 

 centre of the trough is a tall galvanised iron column, which has 4 water taps with sen-wed hose ends. 

 and above this are 2 glass slabs with projecting edges, on which to set reagent flasks. The table has 

 a draught lead of acid-proof material for conducting off gases; water lead with 8 taps and, hanging 

 underneath, 8 dropping beakers (copper), removable for emptying; gas lead with 8 stopcocks with 

 hose unions bent upwards; and lead for compressed air. with 4 stopcocks. Two brass busheg, with 

 female threads, are let into the table top, for taking iron columns. When the columns are not used, 

 the screw holes are closed by screw plugs. All leads are laid complete to the floor. 



50.362. Large Microscope Table (Figure), with 4 places, standing alone, as supplied to Price on 

 the ,,Kaiserin-Friedrich-Haus" for Medir-ine. Berlin ................ appli- 



The microscope table is 4 m long, 60 cm wide, 85 cm high, and has 4 work places. The 

 body is of pitch-pine, is stained and varnished, and has an oak base beading. The top is of 30 mm 

 pine, laid with dark-green linoleum. Each 2 places in general have a water tap on column and 2 hose 

 stopcocks for gas. The taps raise up the water (which is at high pressure) and the water issues in 

 -(ady j-t without pressure. The gas and water taps, with columns, are nickelled. Under each of 

 the water taps is a square porcelain sink with strainer and rubber plugs. For each working place 

 there is a row of 5 drawers arranged one above the other; the rows of drawers are numbered and are 

 provided with different locks. For each working place are given in with the table a crystal glass slab 

 lacquered half white and half black on the under side, size 20 x 20 cm. 



For other Laboratory and Students' Work Tables, see Page 47. 





