IMPROVEMENTS IN MACHINERY FOR TRANSMITTING POWER, WHEREBY THE EFFECT OF SUCH POWER IS INCREASED WITHOUT LOSS OF SPEED
Year: 1839

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSE
FRANCISCO CARLOS DE' ARTENNE, of the Haymarket, in the County of
Middlesex, Gentleman, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Fifth day of April, in the second year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said Jose
Francisco Carlos de' Artenne, Her especial licence, full power, sole privilege
and authority, that I, the said Jose Francisco Carlos de Artenne, my exors,
admors, and assigns, or such others as I, the said Jose Francisco Carlos
de Artenne, my exors, adñors, 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 "IMPROVEMENTS IN MACHINERY FOR TRANSMITTING POWER, WHEREBY THE
EFFECT OF SUCH POWER IS INCREASED WITHOUT LOSS OF SPEED;" in which said'
Letters Patent is contained a proviso that I, the said Jose Francisco Carlos
de Artenne, shall cause a particular description of the nature of my said Inven-
tion, and in what manner the same is to be performed, 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, I com
Jose Francisco Carlos de' Artenne, do hereby declare the nature of my said
Invention, and the manner in-which-the same is to be performed, are fully
described and ascertained in and by the following statement thereof, refer-
ence being had to the Drawing hereunto annexed, and to the figures and
letters marked thereon (that is to say) :-
DESCRIPTION OF THE DRAWING.
It is
A, A', lever; fixed in an iron box in X, on the pole of the carriage; B, link,
viewed on the two sides, uniting the two levers together by means of pins;
C, C¹, main lever, at the end of which, in E, is applied the initial tractive power
here, by means of a bar F, to which is applied a horse; D, D', spring, joined
between the two levers in a, b, by pins. In D' are seen the two cuts in which
the levers are placed; the spring can take any form, round, elliptic, &c.
upon this spring that the main lever acts to depress it from 6 in a.
fragments of the axletree, as indicated; X, box, fixing the two levers on the
pole and fork of the carriage, in which the head of the two opposite levers are
entering, separate from each other; H, second polymockle, or articulated lever,
placed under the first, and acting on the right side of the coach. The power
applied simultaneously to the coach determine a traction in a straight line.
G, G',
Note. The levers C, C', might be lengthened to the width of the carriage,
and then become nearly twice as powerful. Then E, its end, is nearer the
wheel, and the horse, instead of being attached to a small bar, is attached to
one which goes from one wheel to the other, and crosses the pole, the horses
are then attached to that sort of moving splinter bar. By this means the
length of lever C, C', can be extended the whole width of the carriage, since
here it must end in the middle of the horses on both sides. The lengths of the
polymockle are given by the width of the carriage, and the size of the horses
to be employed, but C ought always to = 5 C, and A, A¹, but this first being
smaller than the latter.
Description of the polymockle, or articulated levers, increasing the tractive
power of horses in draught, or any power acting by their means on any body
to be put in motion:-Each lever is composed of four main pieces, viz,-two
levers A, A¹, and C, C', of unequal length, a link B, and a spring D, all joined
or articulated together, as demonstrated in the Drawing, by means of pins
Two of these levers are fixed to the body which is to be moved, form a system
of traction in a straight line. The levers here represented are made of fla
iron, but may be of any other suitable material, and of any form, according to
their situation and employment.

page_text: Position: A lever A, A', is fixed to the body to be moved in as perpen-
dicular a position as possible to the line in which it is to move. To this lever
is joined a link B by means of a pin, the other extremity of this link is joined
to the lever C, C¹, by means of another pin, so that these two levers are
articulated together so as to move easily. Between these two levers is placed
a spring D, which is maintained in its place by means of pins which pass
through the extremities of the spring and the lever, which itself enters
in the notches made in the spring to receive it. To the extremity of the
main lever is applied the power in E, which power tends to flatten or depress
the form of the spring, which is compressed between these two levers in
ratio of the length of the arm of the main lever C, and the resisting point
in X. The tractive power is in ratio of, and the resisting point becomes
less in ratio of A, and as A"=C' (here), the power will be to the resisting
point C: A.
The spring must be calculated so as to have only a small
depressive movement according to the power which acts upon it by the
lever, and to the weight of the body which it is intended to move. These
articulated levers not only augment the propelling power, but also render
the weight of the carriage less on the horses; the starting giving no shock
to their frames, they can throw themselves on their collars without feeling
the sudden jerk which the coaches now in use, by their dead weight, give
them, and also when ascending a hill. By the use of these levers the weight
is moved by a continual but elastic pressure of the horses.
In witness whereof, I, the said Jose Francisco Carlos de' Artenne, have
hereunto set my hand and seal, this Third day of October, One thousand
Inrolled the Fifth day of October, in the year of our Lord One
thousand eight hundred and thirty-nine.