COPY OF PATENT.

_United States_.

To all to whom these Presents shall come, Greeting. Whereas, John Bailey,

of Boston, in the State of Massachusetts, hath presented a petition to

the Secretary of State, the Secretary for the Department of War, and the

Attorney-General of the United States, alledging and suggesting that he

hath invented the following useful Machine, not before known or used,

that is to say: A Steam Jack, consisting of a boiler, three wheels, and

two wallowers; the steam which issues from boiling water in the said

boiler gives motion to one of those wheels by striking on buckets on its

circumference; on the outer end of the axle of the wheel is a wallower,

the rounds of which fall into the teeth of a second wheel; on the axle of

this second wheel is another wallower, the rounds of which fall into the

teeth of a third wheel; on the axle of which third wheel is a spit: and

praying that a patent may be granted therefor: and, whereas, the said

invention hath been deemed sufficiently useful and important: These are,

therefore, in pursuance of the Act, intitled an Act to promote the

progress of useful arts, to grant the said John Bailey, his heirs,

administrators, or assigns, for the term of fourteen years, the sole and

exclusive right and liberty of constructing, using, and vending to others

to be used, the said invention so far as he the said John Bailey was the

inventor, according to the allegations and suggestions of the said

petition. In Testimony whereof I have caused these Letters to be made

patent, and the Seal of the United States to be hereunto affixed. Given

under my hand, at the City of Philadelphia, this twenty-third day of

February, in the year of our Lord one thousand seven hundred and

ninety-two, and of the Independence of the United States of America the

Sixteenth. Go. WASHINGTON.

By the President,

Scientific American Supplement, No. 492, June 6, 1885 · 第 14 / 59 题