High Vacuum Pumps with Oil-packed Piston, Kohl's System. 



393 



52 919. 1:9. 



52921. 1 : 13. 



The price includes the jirce.-soi 'if- illustrated transmission, belt, motor, starter, .-witches and 

 lend* mounted on the table. 



If desired we can supply an A. ('. or a :i-phase Motor for driving, the price beinji correspondingly 

 increased. 



52.022. - - i (1 c in, with 220 volt Direct Current Electric Motor 



52.023. - - i (1 c in, as No. 52,021, with Plate 240 mm diameter and Barometer Gauge 200 mm 

 liiji'li, with 110 volt I). C. Electric Motor - . . . 



52.024. idem, with 220 volt B.C. Electric Motor 



52.025. Duplex Vacuum Pump with Oil-packed Piston and oil non-return valve, Kohl's .system, 

 German Patent, for Motor Drive, larger, internal diameter of Barrels, 75 mm; Stroke 

 Kid mm; without Motor and Plate 



The pliTiip exhausts lo 0.0014 mm. 



.'.!)2ii. -id e m, with Plate 280 mm diameter and Barometer Gauge 300 mm liijrh . . 



Largest Receiver for use with above: No. 53,015 



s. d. 



46. 0.0 



"2.027. -- idem, driven by a ' , H. P. Direct Current Electric Motor for 110 volts, on 

 table with polished top and iron frame, without Plate, cf. Fig. 52,021 



i,02.s. -id e m, with 220 volt D. C. Klectric Motor 



"2,020. -- idem, with Alternating Current Asynchronous Motor and belt releasing device 



"2.030. - - i d e m, with Plate 280 mm diameter and Barometer Gauge 300 mm hijdi, with 

 110 volt D. C. Electric Motor 



"2,031. -- idem, with 220 volt Direct Current Electric Motor 



vj,!32. - - i d e m, with Alternating Current Asynchronous Motor and belt releasing device 



47. 



48. 



27. 



31. 

 0. 



50. 

 51. 



53. 

 54. 



58. 



10.0 

 10.0 



10. 

 0.0 



0.0 



5. 



It. Ii 



10. 



15.0 



10. 



Cl. 04ia, 47H. 



