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).
Patent specification page detailing claims for an improved divided liner for an internal combustion engine cylinder.
| Identifier | ExFiles\Box 140\4\ scan0281 | |
| Date | 22th January 1932 | |
| 2 379,968 recess is greater than the value h minus the width r of each piston ring, when the distance s reaches its maximum possible value. Thus the distance between any 5 one of the lowermost points of the upper wave-like boundary of the recess and any one of the uppermost points of the opposite boundary does not exceed the width of a piston ring. When, therefore, the 10 piston ring, for example, commences to pass over the uppermost points on the lower section 3 of the liner as indicated at B in Figure 2, the ring is still being guided by the lowermost portions on the 15 liner section 2 as indicated at A.{Mr Adams} The piston ring cannot therefore enter the recess and thereby be subjected to shock. Having now particularly described and ascertained the nature of our said inven- 20 tion and in what manner the same is to be performed, we declare that what we claim is :— 1. An improvement in or modification of the divided liner for the cylinder of a reciprocating engine claimed in British 25 Patent Specification No. 351,726, characterised in that the wave-like inner flanges of the sections are chamfered or bevelled so as to form in the inner surface 30 of the liner a band-like recess with two undulating boundaries one on each side of the joint, whereby smooth passage of the piston rings over the joint is ensured. 2. A divided liner as claimed in Claim 35 1, in which the sum of the total axial height of both bevellings and the gap between them when this gap is at its maximum is less than the sum of the amplitude of the corresponding waves of the flanges 40 and the height of the piston ring. 3. The divided liner for the cylinder of an internal combustion engine as described with reference to the accompanying drawings. Dated this 22nd day of January, 1932. KILBURN & STRODE, Agents for the Applicants. Redhill: Printed for His Majesty's Stationery Office, by Love & Malcomson, Ltd.—1932. | ||