242 



CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



Plate ard Frame of No. 5468. 



No. 5476. 



No. 5478. 



No. 5486. 



No. 5480. No. 5482. 



5468. 



5470. 

 5476. 



5478. 



5480 

 548" 



5484. 

 5485. 

 5486 



5487. 

 5492. 

 5491. 



No. 5492. 



No. 5494. 



FILTER PLATES, sec Filter Disks. 



FILTER PRESS, Experimental Form, for making practical tests on a small scale. It is of 

 rugged construction, with parts of iron, built to stand a pressure of 150 pounds to the square 

 inch 5 . Both corrugated plates and extension frames are provided, enabling either filter paper 

 or cloth to be used. Complete with reservoir, hand pump of iron with brass valves, pressure 

 gage, siphon, brass discharge cocks, two filter plates, three frames, filter paper and cloth. 

 Weight, about 125 pounds ......................................................... $75.00 



FILTER PRESS, Experimental Form, same as No. 5468, but with all parts which come in contact 

 with the material made of brass .................................................... 100.00 



FILTER PUMP, Aspirator, new design, of brass. Very efficient. 



No ............................................................... A 



Length, inches .................................................... 3% 



Size I. P. thread, inches ........................................... % 



Each ............................................................ 1-50 



FILTER PUMP, Richards', of brass. 



No .......................... .. .................................... A 



Length, inches .................................................... 7 



Size of I. P. thread, inches ........................................ % 



Each ____ .- ....................................................... 1-70 



FILTER PUMP COUPLING, of brass, to connect Nos. 5476 and 5478 to a threaded faucet. 

 No ........................................................ A B C 



For filter pump, I. P. thread, inches ......................... % Vi 



Each ...................................................... 35 .35 



FILTER PUMP COUPLING, of brass, to connect Nos. 5476 and 5478 with smooth 

 No ....................................................... A B 



For filter pump, I. P. thread, inches ........................ % */4 



Eacn ____ . .... ............................................ 65 .65 



B 



4% 



Vt 



1.70 



2.80 



C 



5% 



% 



2.00 



C 

 13 



% 

 8.50 



D 

 % % 



.35 1.00 



faucet. 

 C D 



% % 



.65 2.50 



FILTER PUMP, of brass, on base with vacuum gage, inlet and outlet tubes .............. 10.00 



'FILTER PUMP, same as No. 5484, but without vacuum gage ........................... 6.00 



FILTER PUMP, same as No. 5484, with vacuum gage and stop-cocks on inlet and outlet tubes 



................................................................................... 12.00 



FILTER PUMP, same as No. 5486, but without vacuum gage ............................ 7-50 



FILTER PUMP, Geissler's, of glass .................................................. l- 



FILTER PUMP, Muencke's, of glass ................................................... 2.00 



