A METHOD OF COM- MUNICATING MOTION
Year: 1855

page_text: LETTERS PATENT to David Dunne Kyle, of Albany Street, Régents Park,
in the County of Middlesex, for the Invention of "A METHOD OF COM-
MUNICATING MOTION."
Sealed the 10th June 1856, and dated the 21st December 1855.
PROVISIONAL SPECIFICATION left by the said David Dunne Kyle
at the Office of the Commissioners of Patents, with his Petition, on the
21st December 1855.
. I, DAVID DUNNE KYLE, of Albany Street, Regents Park, in the County of
Middlesex, do hereby declare the nature of the said Invention for "A
METHOD OF COMMUNICATING MOTION" to be as follows:
First, in placing a portion of the weight of the machine or engine, or load
on the periphery or other concentric parts of the propelling wheels; instead of
on their axles, by this means pressing downwards those parts of the wheels, and
causing them to move forward and revolve.
And secondly, in applying the machine or engine, which may be wrought by
animal power; in raising the weight in constant pressure on the propelling
wheels, and relatively to their progress.
The accompanying Diagram shews the principles of the Invention, the
mechanical arrangements of which would consist of the ordinary parts of
machinery.

page_text: A is the machine or load; B, a wheel driven by the engine in the direction
of the arrow, in contact with, and supported on C; the propelling wheel; and
D is the axle, either wholly or partially free from the weight of the machine
or load, according to the number of wheels used.
Arrangements for adjusting the weight so as to regulate or direct the motion,
and for preventing its descent with undue rapidity, are to be used where
necessary; and as this Invention would be more particularly applicable to the
agricultural use of my machine for excavating and removing earth, means
would be attached to the engine, where necessary, to level the ground or remove
obstacles in advance of the propelling wheels.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said David Dunne Kyle in the Great Seal Patent Office on
the 21st June 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
DUNNE KYLE, of Albany Street, Regents Park, in the County of Middlesex,
send greeting.
9:
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of December, in the year of our Lord
One thousand eight hundred and fifty-five, in. the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said David Dunne Kyle, Her special licence that I, the said David
Dunn Kyle, my executors, administrators, and assigns, or such others
I, the said David Dunne Kyle, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and, vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention, for
"A METHOD OF COMMUNICATING MOTION," upon the condition (amongst, others)
that I, the said David Dunn Kyle, my executors or administrators, by, an
instrument in writing under my, or, their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in. the Great Seal Patent Office within. six calendar months next
and immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that 1, the said David Dunne Ayle, 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, reference being had to the accompanying Drawings, and
to the letters and figures marked thereon, that is to say :-
'
My said Invention relates to a combination and construction of machinery
for transmitting or communicating motion in a more effectual manner than is
accomplished in circumstances where the weight or a portion thereof of the
engine or machine can be made available in driving wheels.
Figure 1, on the accompanying Sheet of Drawings, shews a side elevation
of the arrangement applied to an ordinary portable steam engine without its
wheels; and Figure 2 is a plan of the same. It will be seen that those parts
only which are necessary for explanation are drawn in detail.
A represents the steam engine; B, its shaft in the ordinary bearings; C is a
cranked shaft driven by the ordinary shaft B, and carrying pinions D, D, "at
each end; these pinions work into two spur wheels E, E, which are carried on
spindles, having a sliding motion in the slots F, F; these slots being segmental
to the centre of the pinions D, D, and formed in the cradle which supports the
engine. On the outer ends of these spindles, wheels are placed of smaller.
diameter than the spur wheels E, E, so as to run loose. The cradle or frame
passes under the engine, and upwards, at each side it is fixed thereto; ' at the
upper ends, above the slots F, F, and concentric with them, the bearings for
the shaft C are fixed. The engine rests on a carriage H; this carriage
consists of two hind wheels and two leading wheels J, J; the axle of these
latter moveable on a swivel on the end of the pole or projecting frame of the
carriage at K; this axle is also bent, so as to admit of the engine being placed
in a low position. All the parts of this carriage may be of ordinary con-
struction; on the insides of the wheels J, J, spur wheels are fixed. The
engine rests at one end on the carriage, at the other the spur wheels E, E,
gear with those just described as fixed on the wheels J, J, and the loose wheels
on the outer ends of the spindles of the wheels E, E, rest or travel on the tires
of the wheels J, J, the respective diameters being made to correspond. The
end of the engine which rests on the carriage is supported on pivots L, L, so as
to allow of a vertical motion to the wheels E, E, and the parts in connection
with them; these pivots rest on a strong frame M, supported on rollers which
traverse a segmental rail fixed on the carriage; and having the swivel pin at K
for its centre; to this rail a rack is attached, in which a small toothed wheel
carried by the engine works, and by this means the direction of the engine or

page_text: carriage is changed. N, N, are wheels with radial scrapers attached, and
supported on bars projecting in front of the leading wheels J, J, by which they
are made to revolve; these will remove stones or irregularities where necessary
in advance of the wheels; fixed scrapers or ploughs may also be used; these
are not shewn on the Drawings.
It will be seen that when the shaft C is in motion, the wheels E, E, drive
the wheels J, J, unless when too great an obstacle may be opposed to them;
the wheels J, J, act as endless rails, along which the wheels E, E, travel, and
where necessary, a self-acting clutch can be applied for disengaging the wheels
E, E, at the hinder end of the slot. It is evident that by giving one end of
the engine liberty to move in the direction of its length, the slots could be
dispensed with, and although the spur wheels E, E, and those on J, J, are here
described, they will not be necessary in all cases. The wheels J, J, may be
constructed as lantern wheels, so as to admit of E, E, gearing in their cir-
cumferences; it is evident also that one shaft over the engine would answer in
place of the two spindles E, E; the wheels E, E, and J, J, are kept in contact
by rods connected with the axle and spindles.
In order to obtain motion for other purposes whilst the engine is being
propelled, an additional spur wheel is attached to the spindle of one of the
wheels E; this drives another spur wheel having its centre the same as that
of one of the wheels J; from this, by bevel gearing, motion is given round the
swivel pin at K, and thence to any machinery connected with the carriage;
this is not shewn on the Drawings. It is evident that this Invention may be
used as an auxiliary or not; that part of the weight may be placed directly
on the axle of the driving wheels, and that the number of wheels may
be varied.
The adaptation of the Invention here described, is one applicable to the
agricultural use of my "machine for excavating and removing earth," a use.
for which the Invention is more particularly intended; but combinations of
any ordinary machinery will serve to apply it to other purposes.
And having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried,
into effect, I would observe, in conclusion, that I do not confine or restrict
myself to the precise details or arrangements, which I have had occasion to
describe or refer to, as many variations may be made therefrom without
deviating from the principles or main features of my Invention; but what.
I. consider to be novel and original, and therefore claim as the Invention
secured to me by the herein-before in part recited Letters Patent, is,

page_text: First, the application of the weight, or a portion thereof, in driving or
propelling locomotive engines, especially when off rails.
Second, the arrangement, herein-before described, of lifting the weight by
means of wheels travelling on the peripheries or other concentric parts of the
leading wheels.
In witness whereof, I, the said David Dunne Kyle, have hereunto set
my hand and seal, the Twenty-first day of June, One thousand eight
hundred and fifty-six.
D. D. KYLE. (L.S.)