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).
List of patent summaries related to automotive technology.
| Identifier | ExFiles\Box 147\4\ scan0074 | |
| Date | 5th September 1940 guessed | |
| No. Patentee. Title. 524,520 Chrysler Corporation. Finishing of surfaces by abrading. To remove minute ridge like projections or scratches abrading member is applied to the surface in presence of a lubricant and pressure maintained only sufficient to remove the projections. 524,529 Duvener Metallwerke A.G Extrusion presses for producing section bars of varying cross-section. A mandrel extends through the die without making contact with the walls of the press chamber. 524,530 H.Bader Device for heating engine pistons for assembling or removing gudgeon pins. The cylinder is gripped in a metal band which constitutes the heating element the ends of the band are permanently attached to a pincers device with handles ; holes in the band allow gudgeon pins to be inserted or removed. 524,538 R.Bosch.Ges. Brake circuits for electric starters for internal combustion engines. When main switch of the starter is closed the power supply to the armature of the starting motor is conducted through a two way electro magnetically operated switch and a main field winding, while when the main switch is opened for interrupting the power supply to the motor the main field winding is disconnected and a reversely wound braking field is connected in a loop circuit with the armature by the automatic displacement of the two way switch into position for closing said loop circuit. | ||