From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Catalogue page detailing various models of Main flow and Orifice-Rotameters with their specifications.
| Identifier | ExFiles\Box 122\4\ scan0135 | |
| Date | 13th May 1938 guessed | |
| Main flow Rotameters The rotation of the freely suspended float is reliable evidence of perfect frictionless metering. The materials of manufacture for the floats and fittings are selected for resistance to chemical attack. According to requirements the frames are lined with Vulcanite, Lead, Haveg, or the parts in contact with the fluid are made of Bronze, Aluminium, Brass, Stainless Steel, etc. No wear — no attention — instantaneous setting 101 Standard type for laboratories, for gases and liquids, entirely of glass with heavy base, for small quantities. 102 Standard type for laboratories. Metal stand with glass stop-cock and glass end connections, for small flows. 103 Standard type as Fig. 102, but with metal stop-cock and metal end connections to take rubber tubing. 104 Special type for liquids only, for downward flow and quantities up to about 400 l/h.{Arthur M. Hanbury - Head Complaints} 105 Standard type for insertion in vertical pipe line, with connections screwed gas from ½" to 3½". 106 Type as Fig. 105, but with stand, as a portable instrument. 107 Standard type as Fig. 105, but with flanged connections, for medium flows. 108 Type for horizontal pipe line with return flow through concentric guard glass. 109 Type for fluids carrying impurities, also large flows; easily cleaned by taking out float without dismantling the instrument. 110 Standard type for large quantities, for insertion in vertical pipe line; connections up to 150 mm. int. dia. 111 Special type with upper and lower adjustable contacts for connection to signalling apparatus. 112 Special type for dangerous fluids with tightly sealed guard glass and outlet connections from the guard chamber for leads to open air. 113 Special type as Fig. 104, but with frame and flanged connections. 114 Type for impure fluids and small and medium quantities, with removable float. Orifice - Rotameters Only one moving part, the frictionless dead-beat rotating float. No wear, no attention, instantaneous setting. For all gases and liquids, including corrosive fluids: Chlorine, Phosgene, HCl, SO₂, NH₃, Lyes, Acids, with use of suitable materials of manufacture: Bronze, Stainless Steel, Haveg, Vulcanite, Hardlead, Aluminium, Glass. The pressure across the orifice is indicated by a Rotameter in circuit with a nozzle and connected to the pressure holes. The Rotameter scale indicates the rate of flow corresponding to the pressure drop, e.{Mr Elliott - Chief Engineer} g.{Mr Griffiths - Chief Accountant / Mr Gnapp} in cubic meters per hour. 200 Standard type for liquids, for pipe lines from 80 to 600 mm. int. dia. 201 Standard type for liquids, for vertical pipe lines from 1" to 3½" int. dia. 202 Standard type as Fig. 201, but incorporating shut-off valves. 203 Type for gas when space is restricted above the pipe line. 204 Standard type as Fig. 201, but for horizontal pipe line. 205 Standard type for gases, for horizontal pipe lines from 1" to 3½". 206 Standard type for horizontal pipe lines from 80 to 600 mm. int. dia. 207 Simple type for air defence plant. 208 Type for corrosive gas (Chlorine). Hard-lead and Lead lined. 209 Standard type for gases, for vertical pipe lines from 1" to 3½". 210 Standard type for gases, for vertical pipe lines from 80 to 600 mm. int. dia. 211 Special type for high pressures, with non-return and shut-off valves. 212 Special type for corrosive gases (HCl), entirely Haveg. 213 Special type for industrial gas, for vertical pipe lines from 1" to 3½" int. dia. 214 Type as Fig. 213, but for horizontal pipe lines. | ||