Rumsey''s Improvement Upon Savery's Machine, or steam engine, whereby water may be raised in great quantities to any reasonable height, for the turning of mills, or for agricultural or other purposes.

Rumsey's Improvement Upon Doctor Barker's Mill, a mode by which millstones and other machinery, requiring a circular or retrograde motion, may be turned by or worked with a sinalJer quantity of water than by any plan yet exhibited to the public, and entirely free from the difficulties which prevented Doctor Barker's invention from coming into use.

Rumsey's CylindiTxc Saw Mill, or a mode by which mill saws and all other machinery, requiring an aiterriaicly opposite

1100 EARLY STEAM

motion, whether perpendicular or horizontal, may be -worked without the loss of the weight or force of any part of the water used.

And Wiiekeas it is highly proper, that ingenious men who by their labours and study contrive and invent improvements in arts and sciences, should be rewarded by the community, in proportion to the advantages resulting from the usefulness of their inventions; and as the most proper mode of ascertaining the utility of any new invention or improvement, must be experience ; and as the exclusive right and privilege of making, using, and vending to others, such newly invented engines, machines and inventions, is not only the most cheap and frugal, but the most certain way of rewarding inventors according to their several merits,

U is therefore hereby enacted^ by the and by the authority of the same, that from and after the passing of this act, the said James Rumsey his executors, administrators and assigns, shall have the sole and exclusive right, liberty and privilege within the state, of making, using and vending to others, the saul Boiler for generating steam, so as aforesaid described, and called Rumsey's Pipe Boiler ; the said Steam Boat to be propelled through the water, by means of the re-action of a stream of water forced by steam through a trunk or cylinder from the stern of the boat, against the surrounding water, so as aforesaid described, and called Rumsey's Steam Boat ; the said improvement of Savery's Engine, for raising water for the turning of mills, or for agricultural or other purposes so as aforesaid described, and called Rumsey's improvement upon Savery's machine, or Steam Engine ; the said mode for turning mill stones, and other machinery requiring a circular or retrograde motion, called Rumsey's improvement upon Doctor Barker's mill, and the said mode of working saw-mills, and other machines requiring an alternately opposite motion, perpendicular or horizontal, called Rumsey's Saw Mill ; all which engines, machines and devices, are more particularly defined and described in the said plans, and explanations so as aforesaid filed of record in the office of and to which definitions and descriptions, for farther certainty, this act particularly refers.