| Description | The docket is on a separate sheet. Docketed “Has received particulars of Sir John Lubbock’s engine. All the minor problems of the oscillating engines are got over. Leaked much at the gudgeons. Proposed to make them work in water or oil. This might be included in the patent. Are about to prove condensers tomorrow. No fault about them but the vacuum. Send particulars of the outer end bracket. Shall put on an upper blow-out valve.” |