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).
Product data sheet for an aircraft thermometer oil pocket, detailing specifications and available sizes.
| Identifier | ExFiles\Box 175\5\ img087 | |
| Date | 1st April 1939 | |
| AIRCRAFT Thermometer (Oil) Pocket Description From the illustrations it will be seen that the pocket is composed primarily of three pieces—the centre piece “ B ” being a steel sleeve into which is fitted a standard thermometer, and this sleeve, in addition to forming the passage for the oil, also serves to bind together the top “ A ” and the bottom half “ C ” of the thermometer pocket, both made in aluminium. By this means a very convenient arrangement for fitting can be provided, as shown in the illustration. Sizes Available The “ Elbow ” model, as illustrated, has the intake at right angles and the outlet vertical from the bottom, but the “ Universal ” type pocket is also provided with both the inlet and the outlet at right angles to the body, and, in addition, they can be turned round relative one to another, that is to say, the pipes can enter and depart from the thermometer pocket in a horizontal direction at any relation one to another that may be desired. Table of Sizes: Body Dia. Outside | Inlet and Outlet Oil Union Sizes | Distance between Inlet and Outlet Oil Uns. | Universal Type Nos. (Amal) | Universal Type Nos. (Air Ministry) | Approx. Weight of Universal Type | Height A to C | Elbow Type Nos. (Amal) | Elbow Type Nos. (Air Ministry) | Approx. Weight of Elbow Type --- | --- | --- | --- | --- | --- | --- | --- | --- | --- 1·16″ | ¼″ BSP | 3·27″ | 184/100 | AGS 940A | 6¼ oz. | 4·42″ | 184/150 | AGS 940B | 6½ oz. 1·25″ | ⅜″ BSP | 3·27″ | 184/200 | AGS 941A | 7 oz. | 4·52″ | 184/250 | AGS 941B | 7 oz. 1·4″ | ½″ BSP | 3·1″ | 184/300 | AGS 942A | 8 oz. | 4·50″ | 184/350 | AGS 942B | 8 oz. 1·72″ | ½″ BSP | 2·97″ | 184/500 | AGS 963A | 10½ oz. | 4·47″ | 184/550 | AGS 963B | 11 oz. 1·72″ | 1″ BSP | 2·92″ | 184/400 | AGS 943A | 11½ oz. | 4·42″ | 184/450 | AGS 943B | 12 oz. 2·1″ | 1¼″ BSP | 2·52″ | 184/600 | AGS 964A | 15¼ oz. | 4·22″ | 184/650 | AGS 964B | 1 lb. 2·4″ | 1½″ BSP | 2·57″ | 184/700 | AGS 965A | 1lb. 3oz. | 4·37″ | 184/750 | AGS 965B | 1lb. 4½ oz. The sleeve thread “ B,” which is the thermometer union, has ⅜″ BSP, and has a core through it of ¼″ diameter. The above dimensions are approximate and subject to any alteration according to Air Ministry specification. Other non-standardised models are made. If the above sizes cannot meet your required specification please consult us. Prices on application. AMAL LTD., Holford Works, Perry Barr, Birmingham 20, England. Phone: BIRchfields 4571 (5 lines). Telegrams: Amalcarb, 'Phone, Birmingham. 1m./4/39. W. Printed in England Stamp: RECEIVED 1939 | ||