^nd it is hereby further enacted by the authority aforesaid, that no person or persons whomsoever, shall make, use, or vend to others to be ueed, any or either of the inventions or improvements so as aforesaid described or defined in this act, or in the plans or explanations filed of record in the said office, and hereby referred unto ; or any engine, machine or device whatsoever, formed or contrived upon the same principles therewith, although the form thereof may be varied, under the penalty of forfeiting to the said James Rumsey, his executors, administrators or assigns, the sam of lawful money of this state ; and ihorcover forfeiting

to him and them, all and every such engine, machine and device, so as aforesaid to be contrived, made, used or vended within this state ; the said penalty to be recovered by action of debt, founded upon this act, Avherein no essoine, protection or wager of law, nor more than one imparlance, shall be allowed. And in the execution to be issued upon any judgment obtained in pursuance of this act, a clause shall be inserted, commanding the sheriff or other proper officer to deliver the said engine, device or machine, to the plaintiff if it can be conveniently removed ; but if not, that then and in such a case, the said sheriff, or other proper officer, shall cause the same to be prostrated, destroyed and rendered useless, any law to the contrary notwithstanding.

And it is further enacted by the authority aforesaid, that the sole and exclusive right and privilege for making, using and vending the engines, machines and devices aforesaid, by this act granted to the said James Rumsey, his executors, administrators and assigns, shall continue for the term of years from the time of passing