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).
Particulars of friction devices on 20 HP. pivots, with and without front wheel brakes.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan124 | |
| Date | 1st August 1925 | |
| COPY. C Hs{Lord Ernest Hives - Chair}/CAP/L620.8.25. PARTICULARS OF FRICTION DEVICES ON 20 HP. PIVOTS. G.11. PIVOTS (NO FRONT WHEEL BRAKES). No. of friction washers keyed to pivot pin = 3 " " " " " stub axle = 2 " " floating friction washers = 1 " " number of pairs of effective friction surfaces = 5 per pivot. Total effective friction area (per pivot) = 4.566 sq.in Effective radius = .552" ***************** G.111. PIVOTS (FRONT WHEEL BRAKES). No. of friction washers (floating) = 1 " " number of pairs of effective friction surfaces = 1 per pivot Total effective friction area 1.080 sq. in. } Production Effective radius. .495" } G.51848 ***************** Hs{Lord Ernest Hives - Chair}/CAP. | ||