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Benjamin Howarth Thwaite
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Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
23,378. Thwaite, B. H. Nov. 14. Bearings for fans. A vertical fan shaft is supported at its upper end by a bell running on ball or roller bearings ; the bell rotates in a liquid seal comprising an annular trough of mercury, oil, salt water, &c.
GB190523378D1905-11-141905-11-14Improvements in and relating to the Separation of Dust from Gases.
ExpiredGB190523378A
(en)
Improvements in or relating to Bearings for Shafts or Spindles, applicable to Air Valves or Ventilators for Chambers or Sewers, Weather Vanes or other Articles.