CERTAIN IMPROVEMENTS IN PRODUCING ROTARY MOTION IN MACHINERY WORKED BY MANUAL LABOR
Year: 1842

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
BARLING, of High Street, Maidstone, in the County of Kent, Watch Maker,
send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Sixteenth day of July, One thousand eight hundred and
forty-two, in the sixth year of Her. reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Joseph Barling, my exors, adñiors,
and assigns, Her especial licence, full power, sole privilege and authority, that
I, the said Joseph Barling, my exors, adññors, and assigns, and such others
as I, the said Joseph Barling, my exors, adññiors, and assigns, should at
any time agree with, and no others, from time to time and at all times thereafter
during the term of years therein mentioned, should and lawfully might make,
use, exercise, and vend, within that part of the United Kingdom of Great
Britain and Ireland called England, Her Dominion of Wales, and Town of
Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN PRODUCING
ROTARY MOTION IN MACHINERY WORKED BY MANUAL LABOR;" in which said Letters
Patent is contained a proviso that I, the said Joseph Barling, shall particularly
describe and ascertain the nature of my said Invention, and in what manner
the same is to be performed, by an instrument in writing under my hand and
seal, and 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 in part 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
Joseph Barling, do hereby declare the nature of my said Invention, and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement thereof, and by the Drawing
therein referred to and hereunto annexed (that is to say):-
My Invention relates to Certain Improvements in producing Rotary Motion
in Machinery worked by Manual Labour, and consists in a peculiar combination
and arrangement of levers whereby the muscular power of men is capable of
being advantageously employed and more uniformly imparted than when
similar power is applied to a winch or handle, as commonly used in machines
worked by manual labor, and it seldom occurs that the power of more than
three men can be exerted upon a winch or handle at the same time; an objection
which is entirely obviated by the before-mentioned arrangement of levers, as it
will appear evident that the power being exerted alternately in a vertical
direction (such as that employed in a fire engine), instead of a continuous
circular direction, presents a more favorable position to the body, and con-
sequently produces greater effect of the muscular powers; this is very consider-
able when a number of men are employed, which this peculiar arrangement of
levers admits. of. And in order to explain these improvements as completely
as possible I will proceed to describe the arrangement and combination of
levers and parts connected therewith, which I consider well calculated for

page_text: (at Figures 1, 2, 3,) the lower end thereof being similarly connected to one
end of the lever D, a guide piece being fixed upon the side of the standard
or framing at a, to preserve the vertical action of the same.
It will appear
evident that by raising and depressing alternately each end of the vibrating
lever H, H, motion will be imparted by the rod L to the lever D, and com-
municated from thence by the rod F to the crank G, whence the necessary
rotary motion will be produced; a fly wheel M being fixed upon the cross shaft
C, C, for carrying the crank beyond the null points or centres. It will
obviously occur that the range of action of the different levers, and the rods
connected therewith, will entirely depend upon the velocity of the machine to
which such arrangement is to be applied. I state this in consequence of the
Drawing representing a combination and arrangement of such levers not applied
to any particular machine, but as being applicable to machines generally when
worked by hand. Figures 4, 5, 6, represent an arrangement of levers of the
first order attached to the framing in such a manner as that the space in the
middle thereof may be occupied by the mechanism to be acted upon. H, H,
vibrating levers of the first order, having their fulcrum upon the fixed axis K, by
which each lever has an independent motion, which motion is communicated
by connecting rods or links and levers to the cranks G, G, fixed upon the cross
shaft C, C. The object of this arrangement consists in placing such cranks at
right angles to each other, the advantages of which (assuming that power is
applied to each of the vibrating levers) are obvious; should, however, one man
only be working the machine, the links upon one side thereof may be discon-
nected, the fly wheel serving to carry the cranks beyond the null points.
Having now described the nature of my said Invention, and in what manner
the same is to be and may be performed, I wish it to be understood that I
do not claim the exclusive use of any of the separate parts herein referred to,
except when the same are combined and arranged in the manner herein-before
particularly described and represented by the Drawings for the purpose of
producing rotary motion in machinery worked by manual labor.
In witness whereof, I, the said Joseph Barling, have hereunto set my
hand and seal, this Fourteenth day of January, in the year of our
Lord One thousand eight hundred and forty-three.

page_text: AND BE IT REMEMBERED, that on the Fourteenth day of January, in
the year of our Lord 1843, the aforesaid Joseph Barling came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification afore-
said, 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.
Enrolled the Sixteenth day of January, in the year of our Lord One