396 



Motion oi Gaseous Bodies. 



No. 52 



52964. 1 : in. 



52S83. 1:10. 



52986. 1 : l.V 



52987. 1 : 17. 



Rotary Vacuum Pumps (Enclosed Air Pumps) with Electric Motors, mounted on one baseplate. F i >j. 



r>L.'.<i(;i, with Oil box. 

 - with Direct Current Motor, F i -. r>iV.Hii. 



Revolutions per minute 

 (Quantity of air absorbed, 



approx 

 Highest Vacuum, Mercurx Column 



For 110 volts Direct Current 



approx. 1400 



L350 



1000 



800 



SOI) 



For 120 volts :5-phase Current 



For 210 volts .''.-phase Current 



approx. I Km 



135 

 2.5 

 52,973 



For 220 volts Direct Current 



With three-phase Motor. 



Revolutions pci minute . 

 (,)iiaut it v of air absorbed. 



approx. litres per minute 



Highest Vacuum. Mercury Column . . . mm 



I List No. 

 ' I I 20. 5. 



Star-delta Switch or Starter for above t 1. 0. 6 



I List No. 52,978 

 ' I t 20. 5. 



Star-delta Switch or Starter for above t 1. 0. 6 



Tin' D. C. Motors of No.,. .->:.'."(>.!, .-,L'.!Mi. .VJ.'HiS. .-,L'.!Mi!> an- Scries Motors, the 



wound. The .'i-phase Motors of No-. .VJ.'.tTX .VJ.'.t" I. .V2.!I7S. .~>-.!l7!> ha\e -lion -circuited rolors. the remainder 

 hiiviiiir rotor with slip-rim;-. 



The prices are understood to lie for the I'unip with Klectrie Motor t'ouplinj; ;urd Baseplate or r~|-I!ail- 

 in the two larjrer rrrodcls. 



Please nole rcniiirks appended to No-, ."rj.'.'.'i'i ."i-J.'.HiJ. 



1 Kill 



300 



2.5 



52,974 



24. 5. 



1.0.6 



52,979 



24. 5. 



1.0.6 



940 



192 



L.5 



52,975 

 49. 0. 

 1. 14. 

 52.980 

 49. 0. 

 1. 14. 



690 



L430 

 L.5 



52,976 

 89. 0. 

 2. 11. 

 52,981 

 89. 0. 

 2. 11. 



remainder 



7011 



2340 

 L.5 



52,977 



101. 0. 



2. 11. 



52.982 



110. 0. 



2. 11. 



lieiii;; -hunt 





