A CERTAIN IMPROVEMENT IN A MACHINE TO BE WORKED BY STEAM, THAT MAY BE APPLIED FOR THE MOVING OF SHIPS, BOATS, AND BARGES ON THE WATER, AND TO CARRIAGES, EITHER ON THE ROAD OR TRAMWAYS, AND IN A FIXED POSITION MAY BE APPLIED TO ALL PURPOSES THAT STEAM ENGINES ARE NOW USED FOR
Year: 1831

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
HOBDAY, of Birmingham, in the County of Warwick, Steel Snuffer and Toy
Manufacturer, send greeting.
WHEREAS His most Excellent Majesty King William the Fourth, by
His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-fourth day of May, in the first year of His
reign, did, for himself, His heirs and successors, give and grant unto me, the
said Samuel Hobday, Ilis especial licence that I, the said Samuel Hobday, my
exors, adiiors, and assigns, or such others as I, the said Samuel Hobday, my
exors, admiors, or assigns, should at any time agree with, and no others, from
time to time and at all times during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "A CERTAIN IMPROVEMENT
IN A MACHINE TO BE WORKED BY STEAM, THAT MAY BE APPLIED FOR THE MOVING OF
SHIPS, BOATS, AND BARGES ON THE WATER, AND TO CARRIAGES, EITHER ON THE ROAD
OR TRAMWAYS, AND IN A FIXED POSITION MAY BE APPLIED TO ALL PURPOSES THAT STEAM
ENGINES ARE NOW USED FOR;" in which said Letters Patent there is contained
a proviso obliging me, the said Samuel Hobday, by an Instrument in writing
under my hand and seal, particularly to describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and to
cause the same to be enrolled in His said Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, 1, the said
Samuel Hobday, do hereby declare that the nature of my said Invention or
improvement consists in the combination of certain parts of or to a machine
or apparatus (herein-after to be described) called a steam wheel or engine,
worked by the aid or force of steam or gas, using the known advantages of
the expansive force of steam or gas, in conjunction with the condensing
apparatus, valves, and other parts and known principles employed in steam
or gas engines, also in machines called rotary steam engines or steam
wheels, without claiming any of the parts individually, but only the general
combination thereof, completing by this improvement a machine or apparatus
capable of being employed to advantage as a first mover of power to propel
machinery, which will reduce materials, lessen friction, and be more compact
than the common steam engine. And that my wheel or steam engine may
be clearly understood, I have hereunto annexed proper Drawings, shewing
various views of my steam wheel or steam engine, the same characters or
letters of reference denoting the same parts in each view.
A, A', A", A", A"", represents a wheel or drum of cast iron supported by any
number of arms or spokes from a spindle or shaft B", B", B'", similar to a
breast water-wheel without the floats or buckets, from which spindle or shaft I
propose to work either horizontally or perpendicularly, as the machinery used
may require, so as to turn on its necks or centres C"", "", "", having
proper sills and supports under, according to the power of the machine. From
the spindle or shaft B", B, B",
", or from the wheel or drum A, A', A" A" A",
I propose to take the first moving power, with cogged wheels or other suitable
contrivance, so as to communicate the motion of the drum or wheel to any
required machinery. The outer circumference of the drum or wheel D, D' D",
D", D', is turned true and smooth, to fit steam-tight to the cap or caps F, F',
F", F, F, (which are hereafter described); the inner circumference, d', d",
d", d, is also turned true and smooth, and two, three, four, or any suitable
number of projections or jutting out pieces E', E", E", E"", fixed thereon, so
as to make the cap or caps, and that or those part or parts of the outer circum-
ference of the drum or wheel which is or are covered by the cap or caps,
steam-tight, either by ground metal joints, hemp packing, or any of the usual
modes of making steam joints. The cap or caps (which may be made of iron,
brass, or any other snitable material), each covering any part not exceeding
one half of the outer circumference of the wheel D, D', D", D", D', are pro-
perly fixed or fastened by holding-down bolts sufficient to resist the force of the
steam in the chamber or chambers G, G", the steam coming in at the top of
the cap or caps F, F', F", F"","F", through the pipes H, H', H", H", propel-
"

page_text: ling round the wheel A, A', A", A", A", with the help of the faller or steam's
fulcrum I, I, I, which faller or steam's fulcrum is a piece of iron of any length
or width, according to the power of the machine, moving on two centres
K, K', K, K", faced with copper or any other suitable material, describing
the arch of a circle as it is propelled upwards by the projections or jutting-out
pieces E', E", E", E""". As the wheel or drum revolves round, the facing, sides,
and bottom of this faller or steam fulcrum is made steam-tight, either by ground
metal joints, springs, hemp, or in any of the usual modes known of making
steam joints and valve facings, the faller or steam's fulcrum is then pressed
or forced downwards upon the circumference d', d", d", d", by a spring or
springs L, L.
In witness whereof, I, the said Samuel Hobday, have hereunto set my
hand and seal, the Twenty-first day of November, in the year of our
г
hundred and thintr
AND BE IT REMEMBERED, that on the Twenty-first day of November,
in the year of our Lord 1831, the aforesaid Samuel Hobday came before our
said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.
Inrolled the Twenty-third of November, in the year of our Lord One
thousand eight hundred and thirty-one