A Speed Regulator for Motors.
Year: 1891

page_text: Date of Application, 5th Oct., 1891
Complete Specification Left, 4th July, 1892-4ccepted, 24th Sept., 1892
PROVISIONAL SPECIFICATION.
A Speed Regulator for Motors.
We, ALBERT MALLIARY, GABRIEL MALLIARY, Engineers, and FRÉDÉRIC
CHAPLET, Manufacturer, all of 23 Boulevard de Strasbourg, Paris, France, do
hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus operating in combination with a centrifugal
or other governor in such a manner that a spindle connected to the valve gear of a
steam, hydraulic or other motor remains at rest so long as the motor works at
normal speed, but that it is caused to turn in the one direction or the other when the
speed of the motor is greater or less than the normal speed, thus altering the valves
of the motor so as to correct the deviation from the normal speed.
For this purpose a shaft which may be termed the compensator shaft driven by a
band or otherwise from the motor, drives by a crossed band a countershaft on which
is fixed a coned pulley driving by a belt a corresponding oppositely coned pulley
free to revolve on the compensator shaft along with a toothed wheel attached to
the cone. This wheel gears with a planet wheel of twice the diameter having its
axis mounted in an arm which is fixed on the compensator shaft and revolves with
it. On this axis is fixed a second wheel which gears with an equal wheel free to
revolve on the compensator shaft and which drives through any suitable gearing
the spindle connected to the valve gear of the motor. The belt connecting the two
coned pullies being guided by a fork connected to the sliding rod or sleeve of a
centrifugal or other governor, the apparatus works in the following manner.
The belt being at the middle of the cone pullies when the speed is normal, the
arm revolving with the compensator shaft carries round the two planet wheels
mounted on it and the second of these merely rolls round without driving the wheel
connected to the motor valve gear which wheel remains at rest. But when the
speed of the motor varies, the governor shifts the belt along the cone pullies, and
the planet gear being thus driven at a speed not in correspondence with that of the
compensator shaft, the wheel connected to the valve gear is moved round operating
the motor valves so as to reduce the speed, if it was greater, and to increase the
speed if it was less, than the normal speed.
Dated this 5th day of October 1891.
ABEL & IMKAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
A Speed Regulator for Motors.
We, ALBERT MALLIARY, GABRIEL MALLIARY, Engineers, and FRÉDÉRIC
CHAPLET, Manufacturer, all of 23, Boulevard de Strasbourg, Paris, France, do
hereby declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
This invention relates to apparatus operating in combination with a centrifugal
or other governor in such a manner that a spindle connected to the valve gear of a
steam, hydraulic or other motor remains at rest so long as the motor works at
normal speed, but that it is caused to turn in the one direction or the other when
the speed of the motor is greater or less than the normal speed, thus altering the
valves of the motor so as to correct the deviation from the normal speed.
For this purpose a shaft which may be termed the compensator shaft driven by a

page_text: band or otherwise from the motor, drives by a crossed band a countershaft on which
is fixed a coned pulley driving by a belt a corresponding oppositely coned pulley
free to revolve on the compensator shaft along with a toothed wheel attached to
the cone. This wheel gears with a planet wheel of twice the diameter having its
axis mounted in an arm which is fixed on the compensator shaft and revolves with
it. On this axis is fixed a second wheel which gears with an equal wheel free to
revolve on the compensator shaft and which drives through any suitable gearing
the spindle connected to the valve gear of the motor. The belt connecting the two
coned pullies being guided by a fork connected to the sliding rod or sleeve of a
centrifugal or other governor, the apparatus works in the following manner.
The helt being at the middle of the cone pullies when the speed is normal, the
arm revolving with the compensator shaft carries round the two planet wheels
mounted on it and the second of these merely rolls round without driving the
wheel connected to the motor valve gear which wheel remains at rest. But when
the speed of the motor varies, the governor shifts the belt along the cone pullies,
and the planet gear being thus driven at a speed not in correspondence with that of
the compensator shaft, the wheel connected to the valve gear is moved round
operating the motor valves so as to reduce the speed, if it was greater, and to
increase the speed if it was less, than the normal speed.
The construction of the above described apparatus is shewn on the accompanying
drawings, in which Fig. 1 shews a part sectional elevation and Fig. 2 a plan. A
and B are two parallel shafts, of which A. is driven by the motor either my means
of a pulley Z or otherwise, while the shaft B receives motion from A in the contrary
direction either by means of a crossed belt Q or by toothed gearing. On the
shaft B is fixed a cone D geared by means of an open belt P with a cone C which
is loose on the shaft A. This cone is fixed to or formed in one with a toothed
pinion E. The shaft A. also carries fixed thereon an arm F in the boss of which
turns loose the axis G, which has fixed thercon at each end a spur whool, one of
which H gears with E, and is of double the diameter of the latter, while the other
wheel K gears with a wheel M of equal diameter therewith.
The wheel M is loose on shaft A and acts upon the distributing valve or other
distributing device of the motor through a wheel N, fixed to it, and a pinion O
gearing therewith and carried by a shaft z which imparts the motion to the valve
or other device in any suitable manner.
Such device may be the sluice of a turbine, or a steam or other fluid pressure
supply valve, or an expansion valve, or an electrical switch.
The apparatus acts as follows.
When the motor to be regulated runs at the normal speed, it is not necessary to
act upon the distributing device, the wheel M should therefore be stationary, and it
will be seen that under these circumstances it will be so, as the belt P will then be
situated on parts of the cones CD of equal diameter and in that case, C and E
will rotate at the same speed as shaft A but in the contrary direction, so that in
consequence of the proportion 2 : 1 of the diameters H and E the speed of rotation
of the axis G will be such that the wheel K will roll round upon the wheel M
without rotating it.
But if the speed of the motor be above, or below the normal, the centrifugal
governor of the motor of the engine, in acting upon the belt P by means of the
fork R will shift it in the one direction or the other so that the speeds of the
cones CD will no longer be the same, and the consequence hereof will be that K
will be rotated at such a speed as to cause M to be turned upon A in one direction
or the other. By such motion of M the distributing device is actuated so as to
cause the speed of the motor engine to be either increased or reduced to the normal
again, whereupon the governor will again bring the belt P back to the first
described position, by which the wheel M again becomes stationary.
It will be seen that this apparatus will impart a rotary motion to the wheel M in
the one direction or the other proportionate to the difference of the speeds of the
cones C and D so that the corrections of the variations of speed of the motor to

page_text: which the apparatus is applied, will be effected with a rapidity proportionate to
these variations themselves.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is :-
A speed regulator for motors wherein a shaft driven by the motor carries two
loose toothed wheels each gearing with one of two planet wheels fixed on an axis
carried loose by an arm revolving with the shaft, the one loose toothed wheel being
rotated in a direction contrary to that of the said shaft and at a speed dependent
upon the speed of the motor, and being also so proportioned to the plauet wheel
gearing therewith that when the motor is running at the normal speed, the planet
wheel gearing with the second loose toothed wheel merely rolls round the latter
without imparting rotation thereto, but when the motor is running at a speed above
or below the normal, the second loose wheel receives motion in one direction or the
other and is thereby made to actuate the distributing valve or other distributing
device of the motor, substantially as described.
T11000
ABEL & IMRAY,
Agents for the Applicants.