IMPROVEMENTS IN APPARATUS FOR TRANSMITTING MOTIVE POWER, AND FOR OVERCOMING THE USUAL LOSS OF POWER AT THE DEAD POINTS OF ROTATORY MACHINES
Year: 1873

page_text: LETTERS PATENT to Charles Ernest de Loriere, of No. 1, Victoria
Street, in the County of Middlesex, Engineer, for the Invention
of "IMPROVEMENTS IN APPARATUS FOR TRANSMITTING MOTIVE POWER, AND
FOR OVERCOMING THE USUAL LOSS OF POWER AT THE DEAD POINTS OF
ROTATORY MACHINES."
Sealed the 16th January 1874, and dated the 3rd September 1873.
A
PROVISIONAL SPECIFICATION left by the said Charles Ernest de
Loriere at the Office of the Commissioners of Patents, with his
Petition, on the 3rd September 1878.
I, CHARLES ERNEST DE LORIERE, of No. 1, Victoria Street, in the
County of Middlesex, Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS FOR TRANSMITTING MOTIVE POWER,
AND FOR OVERCOMING THE USUAL Loss of Power at the DEAD POINTS OF ROTATORY
MACHINES," to be as follows :—
This Invention relates to the construction and arrangement of
apparatus or machines, such as are used as cranes for lifting and
.lowering weights, for driving shafts of vessels and rotatory machinery in

page_text: general, whereby the usual loss of power at the dead points is obviated,
and better results obtained than heretofore.
The Invention consists of a combination of a three-crank main shaft,
three rock levers, two of them slotted at one end only for blocks to work
in, a three-crank auxiliary shaft, the cranks of which are acted upon to
exert power through the arc of a circle in succession, one of the cranks
of the main shaft, one of the levers, and a crank of the auxiliary shaft,
being rigidly connected together to act like an ordinary crank, the other
two termed auxiliary cranks and levers taking up the power of
momentum, which is within the machine, when the ordinary crank is
approaching to and receding from the dead centres, and utilizing that
power of momentum for producing and maintaining a speed of great
regularity, and an equality of power not hitherto obtained in rotatory
machines as at present constructed. The latter shaft may have pinions
or wheels upon
it for communicating the motion.
The three cranks occupy distinct positions on the two shafts at right
angles, so that when two of them, which are on the main shaft, are
diametrically opposite to each other, and at the dead centres, the other
or third crank is in the position for exerting a lifting power, and to put
power into the fly wheel, the momentum of which as it rotates serves to
put into action one or other of the two other cranks upon the main
shaft for exerting a power to carry the first-mentioned crank over the
dead centres, thereby utilizing that power which would otherwise be
lost. The rotation of the additional shaft is moreover more regular,
consequently the usual variations of speed so common in machines of
those classes are obviated.

page_text: of our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Charles Ernest de Loriere, Her
special licence that I, the said Charles Ernest de Loriere, my executors,
administrators, and assigns, or such others as I, the said Charles Ernest
5 de Loriere, 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 "IMPROVEMENTS IN APPARATUS FOR TRANSMITTING MOTIVE POWER, AND FOR
OVERCOMING THE USUAL LOSS OF POWER AT THE DEAD POINTS OF ROTATORY
MACHINES," upon the condition (amongst others) that I, the said Charles
Ernest de Loriere, 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.
"
NOW KNOW YE, that I, the said Charles Ernest de Loriere, 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, reference being had to the Drawings
hereunto annexed, that is to say :—
This Invention relates to the construction and arrangement of
apparatus or machines, such as are used as cranes for lifting and
lowering weights for driving shafts, of vessels-and-rotatory-machinery in
general, whereby the usual loss of power at the dead points is con-
siderably diminished, and better results obtained than heretofore.
The Invention consists of a combination of a three-crank main shaft,
three rock levers, two of them slotted at one end only for blocks to work
in, a three-crank auxiliary shaft, the cranks of which are acted upon to
exert power through the arc of a circle in succession, one of the cranks
of the main shaft, one of the levers, and a crank of the auxiliary shaft
being rigidly connected together to act like an ordinary crank, the other
two, termed auxiliary cranks and levers, taking up the power of
momentum, which is within the machine, when the ordinary crank is

page_text: approaching to and receding from the dead centres, and utilizing that
power of momentum for producing and maintaining a speed of great
regularity, and an equality of power not hitherto obtained in rotatory
machines as at present constructed. The latter shaft may have pinions
or wheels or other device upon it for communicating the motion.
The three cranks occupy distinct positions on the two shafts at right
angles, so that when two of them, which are on the main shaft, are
diametrically opposite to each other, and at the dead centres, the other
or third crank is in the position for exerting a lifting power, and to put
power into the fly wheel, the momentum of which as it rotates being 1
discharged alternately through each of the two other cranks upon the
main shaft, and thence through the corresponding levers to the cranks
upon the auxiliary shaft, in such a manner as to utilize the accumulated
power in the fly wheel in a more efficient manner than in other
apparatus, and more effectively carry the first-mentioned crank over its
dead points. The rotation of the additional shaft is consequently more
regular than in ordinary crank-motion machines.
The Invention will be clearly understood by the following detailed
description, with reference to the accompanying Drawings, in which
Figures 1 and 2 show in elevation and end view how I construct my
apparatus, and the position the cranks and levers occupy when the two
auxiliary cranks are at the dead centres, and the third or power crank
in full action for giving out its force in moving the parts, and for con-
veying power into the fly, wheel, which is utilized at every alternate half
throw of the power crank.
A is the main shaft, which can be driven by band or by crank
handles B, B, as shown, or other device; C, 0³, are the two auxiliary
cranks upon the shaft, and arranged diametrically opposite to each
other, so that when the connecting rods D, D¹, are vertical, one of them
being at the top of its traversing circle, and the other at the bottom, the
whole force or power of lifting the weight and of putting power into the
fly wheel to carry them over their dead centres is effected by the power
crank M. These rods D, D', at the lower ends are attached to the long
ends or arms of rock levers E, E³, which are free to vibrate upon the
pivots F, F, the other or short ends or arms G, G', having straps or
slots U, H³, upon them, in which blocks I, I, are free to move up and
down, the blocks I, I, being hung upon joint pins J, J', of connecting
6

page_text: rods K, K, which take a position alternately to operate the additional
shaft L by its cranks, the throws of which are arranged in relation to
the throws of the cranks upon the main shaft A for maintaining the
rotatory motion when the power crank is approaching to and receding
from the dead point. The crank M of the main shaft has also a rod N,
of a length somewhat shorter than that of the two rods D, D¹, whose
lower end is pinned or bolted to the long, end or arm of a lever P, also
free to rock upon one of the pivots F³. The short arm Q of this lever is
pinned or bolted direct, and without the intervention of a moveable
block or slot to the lower end of a connecting rod R, the said rods being
also shorter than the rods K, K'; the upper end of this rod is attached
to the third crank S of the additional shaft L, so that when the auxiliary
cranks are crossing their dead centres the crank M is in full trim for
lifting purposes. The blocks I, I', in the two straps H, H³, are alter-
nately put into contact with the upper faces of the straps, one acting as
an auxiliary conductor of power to the additional shaft from the
momentum of the fly wheel, the other block acting alternately as a
follower under the pressing influence of its descending rod and lever,
Figures 3 and 4 represent similar views of my apparatus, with the
auxiliary cranks C and levers E in the position they occupy to discharge
the accumulated power of the fly wheel, and when the ordinary crank M
is approaching its top dead centre. The crank O is here shown
approaching the point in its segment of the circle of traverse, at which
the momentum of the fly wheel can be most effectively discharged
through the rod D, the lever E, and connecting rod R, upon the
corresponding crank of the auxiliary shaft, at the portion of its
revolution of greatest leverage upon the shaft, the crank O₁ exerting no
power or force, but simply following round to get into the position of O
to act as a power or force giver in its turn, while C becomes an idle
follower. While the idle follower operation of crank O³, rod D¹, and
lever E, is going on the play of the block I' in the slot or shaft H' is
free until the crank O' assumes the position of O, when the block I'
impinges upon the top or slot H³, and becomes effective, the crank O,
rod D, lever E, and rod K, in their turn becoming followers.
5 And having now described the nature of my said Invention and in
what manner the same is to be performed, I declare that I claim,-
. Firstly. The construction and arrangement of apparatus, substantially
as herein-before described, by which a more regular speed of rotation

page_text: can be transmitted to rotative machines, and loss of power at dead
centres considerably diminished.
Secondly. I claim the combination of apparatus, substantially as set
forth, to provide lost motion through a certain portion of the strokes of
two sets of cranks, levers, and connecting rods, either by sliding con-
necting blocks or other similar device, in connection with a third system
of cranks, levers, and connecting rods, without said lost motion, said
combination enabling the momentum of a fly wheel to be discharged
upon cranks at the portion of their revolution of most effective
leverage.
In witness whereof, I, the said Charles Ernest de Loriere, have
hereunto set my hand and seal, this Twenty-eighth day of
February, One thousand eight hundred and seventy-four.
CHARLEN ERNEST DE TADTUDT
1