Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
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Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
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Application filed by Siemens Brothers and Co LtdfiledCriticalSiemens Brothers and Co Ltd
Application grantedgrantedCritical
Publication of GB189903203ApublicationCriticalpatent/GB189903203A/en
Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
3203. Siemens Bros. & Co., [Siemens & Halske Aktiengesellschaft]. Feb. 13. Fans.-The blades of fans are made of soft flexible material such as woven fabric, leather, and caoutchouc, so as to dispense with the necessity of a casing to protect persons from contact with the blades. The blades may be strengthened at some distance from their points by metal strips, and they are preferably mounted so that the fan acts partly as a screw fan.
GB189903203D1899-02-131899-02-13An Improvement in Rotary Air Propelling Fans.
ExpiredGB189903203A
(en)
Device for the generation of an air current with a temperature lower than the exterior temperature (Machine-translation by Google Translate, not legally binding)
Improvements in and relating to Apparatus for use in connection with Ice Cooled Chambers and the like, for Storing Meat and other Perishable Goods, and for Cooling and Ventilating Apartments and the like.