MARINE ENGINES . 35 1 the connecting rod has a hole bored up through it , and is fitted with an internal Steel rod which can adjust the bottom brasses with a screwed key and jib . In some examples the air j " ' ' pumps have been placed [ i . h . . vertically , one on each side ^ " of the centre… … trunks , the point of Con Fig . 225 . — Double Air Pump and Condenser , arranged nection for the main rod vertically . A , Condenser . b b , Air pumps . c c , Covers for do . being placed within the d Exhaust passage , ee , Hot wells . f , Rocking beam . centre line of the forward pump , whereby…
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