A NEW MODE OF OBTAINING A ROTARY MOTION FROM THE RECTILINEAR MOTION OF THE PISTON ROD OF A STEAM OR OTHER THE LIKE ENGINE
Year: 1839

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
GEORGE SHUTTLEWORTH, of the Mount, near Sheffield, Soap Boiler, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Eighteenth day of July, in the third year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
John George Shuttleworth, Her especial licence that I, the said John George
Shuttleworth, my exors, admors, and assigns, or such others as I, the said
John George Shuttleworth, my exors, admors, 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 Inven-
tion of "A NEW MODE OF OBTAINING A ROTARY MOTION FROM THE RECTILINEAR
MOTION OF THE PISTON ROD OF A STEAM OR OTHER THE LIKE ENGINE;" in which said
Letters Patent is contained a proviso obliging me, the said John George
Shuttleworth, by an instrument in writing under my hand and seal, par-
ticularly 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 inrolled in
Her 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, I, the said
John George Shuttleworth, do hereby declare the nature of my said Invention
to consist in applying two rows of cogs and guide or steadying pins to an
extension or clongation of that part of the piston rod of a steam or other such
engine, which, when the piston is down (if the cylinder be placed vertically),
is above the top of the cylinder, and causing those two rows of cogs to act
alternately upon segments of cogged wheels, or a segment of a cogged wheel,
as the case may be, in such manner as to cause a continuous rotation of the
axes or axis of the segments or segment aforesaid, which axes or axis may
thereby be used as a driving shaft or driving shafts for machinery, without the
intervention of any cranked shaft; and in further compliance with the said
proviso, I, the said John George Shuttleworth, do hereby describe the manner
in which my said Invention is to be performed by the following statement
thereof, reference being had to the Drawing annexed and to the figures and
letters marked thereon, that is to say:
DESCRIPTION OF THE DRAWING.
Figure 1 represents a front elevation of one application of my said Invention,
the piston to be considered as having just completed the upstroke, as shewn,
as commencing the descent of the down stroke. A represents the cylinder of
a steam engine; B the piston rod, working as usual through a stuffing box
in the top of the cylinder. The part of the piston rod C which is furnished
with cogs never goes through the stuffing box, but in all positions of the
piston is above it. D is a channel or groove in the piston rod, working over
a dovetailed feather on the cross bar E, to steady it. F, G, are two segments
of cogged wheels, on the shafts of which are fixed the toothed gear wheels
H and I, taking into the carrier or communication toothed wheel K. When
the piston rod rises it is represented as carrying with it the segment F, and
when it descends it carries with it the segment G; and as whichever segment
is acted upon by the piston rod causes, by means of the communication
wheel K and the two gear wheels H and I, the opposite segment to be
brought round, a continuous rotatory motion in one direction is given to
each of the axes or shafts of the segments and toothed wheels. In order
more effectually to secure the release of one segment, and the biting or taking
in at the same instant of the other, there is a contrivance L (see Figure 3)
on the centre or communication wheel K. This contrivance consists of a
raised groove or tappet M fixed on the face of the wheel K, which takes a
boss or steadying pin projecting from the piston rod at N alternately with one
projecting from the rod at P, and thus secures the ascent of the rod sufficiently

page_text: high in one case to fully release the segment F and catch the segment G,
and the descent of the rod sufficiently low in the other case to secure the full
release of the segment G, and perfect catch of the segment F. A fly wheel,
which may be placed on either of three axes aforesaid, will also add its
influence to effect this object, and steady the motion of the engine.
Figure 2 is a front elevation, showing the piston rod at half stroke.
Figure 4 represents another application of my said Invention, where only
one segment is used, the aforesaid elongation of the piston rod branching into
two parts Q, R; and similar letters of reference being used to denote similar
parts in all the Figures, no further description will be required of this Figure.
Now whereas I claim as my Invention the application of cogged gear and
steading pins, such as shewn in the apparatuses herein-before described,
directly to the piston rod of a steam or other the like engine, for the purpose
of obtaining a rotatory motion for the driving shaft from the rectilinear motion
of the said piston rod, and without the intervention of a cranked shaft. And
such my Invention being to the best of my knowledge and belief entirely new,
and never before used within that part of Her said Majesty's United Kingdom
of Great Britain and Ireland called England, Her said Dominion of Wales, or
Town of Berwick-upon-Tweed, I do hereby declare this to be my Specification
of the same, and that I do verily believe this my said Specification doth
comply in all respects, fully and without reserve or disguise, with the proviso
in the said herein-before in part recited Letters Patent contained. Wherefore
I hereby claim to maintain exclusive right and privilege to my said Invention.
In witness whereof, I, the said John George Shuttleworth, have
hereunto set my hand and seal, this Eighteenth day of January,
in the year our Lord One thousand eight hundred and forty.
JOHN GEORGE (L.s.) SHUTTLEWORTH.
AND BE IT REMEMBERED, that on the Eighteenth day of January,
in the year of our Lord 1840, the aforesaid John George Shuttleworth came
> before our said Lady, the Queen in Her 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.
10
Inrolled the Eighteenth day of January, in the year of our Lord One
thousand eight hundred and forty.