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56 STEAM NAVIGATION.
1801. ing): a motion backward and forward being produced in the piston
of the Steam Cylinder, the Crank will be turned round, and a rota-
tory motion produced in the first spindle or lying shaft. The power| of the Engine may be thus applied in producing rotatory motion bythe revolving wheel, in place of the crank. When a reciprocating| motion is wanted, the piston-rod of the steam engine must be coupled N| fo a pump rod, piston rod, or other body, wished to be so moved; and|| the engine being set to work, a reciprocating motion will be thus pro-|duced. Although the steam cylinder is represented in the drawing|| in a horizontal position, it may be applied to produce the above mo-|tions when placed in a perpendicular position, or any of the differentangles between a perpendicular and horizontal position, as circum-stances may require.
“ The above-mentioned construction of steam engines is peculiarlyadapted for navigating boats, vessels, or rafts in canals or rivers, andfor breaking the ice on them, and may be used in manner following.First, a wheel or wheels with blades may be placed in a boat, vessel,or raft, to act in such manner upon the water when put in motion by|the steam-engine as to be able to impel the boat, vessel, or raft, which|may be used instead of horses to drag boats, vessels, or rafts, and a|wheel or wheels may be placed to act within the boat, vessel, or raft,| if constructed with two keels, or divided from stem to stern, or uponthe outside of those bwilt in common form, as circumstances mayrequire. 7Z’he principle of this invention comprehends any speciesof machinery thus put in rotatory motion by a steam engine, whichmay be made use of to navigate boats, vessels, or rafts. Second, tobreak ice, a number of beaters, hammers, or stampers may be placedin the bow quarter of the boat, vessel, or raft, which beaters, ham-mers, or stampers, when put in motion by the steam-engine, may re-volve upon an axis, or be worked by an up and down motion in mannerof common tilts or stampers.
(Signed)“ WILLIAM SYMINGTON.”