Bengal public health report.

  • Bengal (India). Public Health Department.
Date:
[1931]
Catalogue details

Licence: Public Domain Mark

Credit: Bengal public health report. Source: Wellcome Collection.

    143/250 (page 141)
    Annual cost of mainten¬ ance (exclu¬ sive of . loan charges). Cost of delivery of 1,000 gallons (exclus- sive of loan charges). Interest and re¬ payment of loan charges. Source of supply. Type of filters employed. Type of engines and pumps. 10 11 12 13 14 15 Rs. Annas. Rs. • 4,353 12-46 1,104 River Meghna Two Jewell pressure filters. Two horizontal Worthington Duplex piston pattern non¬ condensing pumping engines. Two vertical cross tube boilers. N. H. P. 5, average total lift 74'. 8,499 i 0-60 i ( 30 springs on Senchal spur. Nil For subsidiary service to St. Paul’s School and three adjacent properties, two 10 H. P. motors, one Rees Roturbo pump and one Hayward Taylor duplicate plunger pump. 495 • • •• Reserved tank Two slow sand filters. Two kite motion hand pumps. 7,274 2-12 993 Spring in the forest of Sepoydhura. Two Jewell pressure fil¬ ters. Gravity supply. 27,435 2-60 15,609 River Hooghly Three slow sand filter beds. Two Worthington horizontal triple expansion surface con¬ densing pumping engines. Average total lift 116-7'. Two vertical high speed compound Sisson engines direct coupled with two 10' medium lift centrifugal pumps. Three Babcock and Wilcox boilers, 343 sq. ft. heating surface each. 150 lbs. working pressure. 6,979 8-32 4,417 Reserved tank and tube-well. Three Pater¬ son’s gravity filters. Two Tangye’s kerosine oil engines of 12 B. H. P. each. Four 4' centrifugal pumps (Tangye). One Broom and Ward’s air compressor. All countershaft belt driven. Average total lift 47 -5'. 10,954 • • 816 Reserved tank and river. One Paterson’s gravity filter. Low lift from river to reserved tank.—One Worthington Dup¬ lex horizontal piston pattern pumping engine. One verti¬ cal boiler, N. H. P.'8, medium lift. Unfiltered water from reserved tank to the settling tanks.—Two Gwyne's centri¬ fugal pumps, each having a capacity of 7,500 gallons per hour. High lift.. Two Gwyne’s centrifugal pumps for filter water, each having a capacity of 7,500 gallons per hour. All these centrifugal pumps are driven by two Blackstone spring injection type cold starting crude oil engines of 9 B. H. P. each, direct belt driven. Average total lift 75 -8'. 45,220 I 6 -95 • • River Hooghly Filtered water is taken from Howrah water¬ works. Two horizontal double-acting condensing Duplex pumping engines. Average total lift 110'. Two Cornish boilers.