Improved Mechanical and Electrical Appliance for Regulating and Controlling the Charging of Storage Batteries, the Supply of Water to Steam Generators, and for other purposes.
Year: 1894

page_text: Date of Application, 18th Apr., 1894
Complete Specification Left, 18th Jan., 1895-Accepted, 13th Apr., 1895
PROVIDIUNAL DE MULTIVALIVA
New or Improved Mechanical and Electrical Appliance for Regulating
and Controlling the Charging of Storage Batteries, the Supply
of Water to Steam Generators, and for other purposes.
We, GEORGE ROBERT ROLLASON, and CHARLES ARTHUR ROLLASON, both
of 50 Goldburst Terrace East, South Hampstead, in the County of Middlesex,
Engineers, and WESTLY HENRY FLETCHER of 13 Berners Street in the County
of Middlesex, Architect do hereby declare, the nature of this invention to be as
follows:-
Our invention has for its object an improved appliance for automatically
effecting the movement of a driving belt or rope from a fast to a loose pulley and
vice versa, the opening and closing of a valve, and for other analogous purposes,
and which may consequently be utilized for governing the charging of storage
batteries, the supply of water to steam generators and for most purposes where
controlling mechanism is requisite.
In carrying our invention into practical effect we use a spindle having a left and
right handed screw thread cut or formed thereon mounted in suitable bearings and
geared either directly or through a band to a part of the mechanism to be controlled
so that it will be continuously revolved in one direction.
Sliding upon a guide or guides parallel to the axis of this spindle is a cross
head or carriage to which is hinged at its apex a V shaped piece carrying or
having secured to each of the free ends thereof a half nut cut with a left and right
handed screw thread respectively.
The carriage may thus, by bringing either one or the other of the half nuts into
gear with the spindle, be caused to travel in whichever direction required and so
utilized for operating a fork for moving a belt from a fast to a loose pulley or
vice versu for opening or closing a valve or otherwise controlling or regulating.
The movement of the V shaped piece so as to throw either one or the other of
the half nuts into gear with the spindle may be effected through the rise and fall
of a governor of any ordinary construction, a float or any other suitable means but
where however the device is utilized for regulating the charging of secondary or
storage batteries by moving the driving belt of the dynamo from the loose to the
fast pulley or vice versa, we purpose using electro magnets to effect this object.
These electro magnets are secured in any suitable position to the carriage, and
their coils are connected to a switch from the carriage by means of which a current
may be passed through one or the other of the magnets and one of these excited so
as to attract an armature on one or the other of the free ends of the V shaped
pieces and consequently bring one of the half nuts into gear with the spindle
thereby moving the carriage in the direction required to transfer the driving belt
of the dynamo to or from the fast pulley of the actuating mechanism. The
completion of the circuit through the switch and the electro magnets is governed
by the rise and fall of a hydrometer so arranged that when it falls below a given
point it strikes a contact which completes the circuit and as a cousequence that
balf nut is brought into gear with the spindle which will move the carriage in the
direction to transfer the driving belt of the dynamo from the loose pulley to the
fast pulley of the driving mechanism so as to re-commence the charging of
the storage batteries.

page_text: The hydrometer will then consequently commence to ascend and so break the
circuit through the electro magnet and leave the driving belt of the dynamo on the
fast pulley of the driving mechanism. When, however, the hydrometer has risen
to a point indicating that the batteries are charged, as these latter will bear
further charging, the contact which it is arranged to strike does not directly
complete the circuit through one of the electro magnets actuating one of the half
nuts, but is arranged to throw into gear other mechanism which will allow the
dynamo to be run for any further period desirable. For this purpose this contact
which the hydrometer strikes as it rises completes a local circuit in which the coils
of an electro magnet are situated.
This electro magnet when excited attracts an armature which normally holds
down one end of a weighted lever consequently allowing the unweighted end of
said lever to rise, and arms projecting therefrom to move a clutch which throws a
suitable train of wheels into gear with the screw spindle with which the half
nuts gear.
On the spindle of the last of these train wheels contacts are secured, which when
said spindle has been sufficiently revolved and the dynamo consequently allowed to
further charge the batteries, completes the circuit through that electro magnet on
the carriage which will cause the latter to travel in the direction to transfer the
driving belt of the dynamo from the fast to the loose pulley of the driving
mechanism and so discontinue the further charging of the batteries.
Suitable mechanism actuated from the cross head or carriage or other suitable
point is provided for replacing the weighted lever in the position which it is.
normally held by the armature of the electro magnet in the local circuit after the
circuit has been completed through one of the magnets actuating the V piece on
the carriage or cross head.
Dated thin 10th day of Anil 1901
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicants.
New or Improved Mechanical and Electrical Appliance for Regulating
and Controlling the Charging of Storage Batteries, the Supply
of Water to Steam Generators, and for other purposes.
We, GEORGE ROBERT ROLLASON, and CHARLES ARTHUR ROLLASON, of
50 Goldhurst Terrace East, South Hampstead, in the County of Middlesex,
Engineers, and WESTLY HENRY FLETCHER, of 13 Berners Street, in the City
of London, Architect, 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 :-
Our invention has for its object an improved appliance for automatically
effecting the movement of a driving belt or rope from a fast to a loose pulley and
vice versa, the opening and closing of a valve, and for other analogous purposes, and
which may consequently be utilized for governing the charging of storage batteries,
the supply of water to steam generators and for most purposes where controlling
mechanism is requisite.
In carrying our invention into practical effect we use a spindle having a left and
right handed screw thread cut or formed thereon mounted in suitable bearings and
geared either directly or through a band to a part of the mechanism to be controlled
so that it will be continuously revolved in one direction.
Sliding upon a guide or guides parallel to the axis of this spindle is a cross head
or carriage to which is hinged at its apex a V shaped piece carrying or having

page_text: secured to each of the free ends thereof a half nut which nuts are cut with a left
and right handed screw thread respectively.
The carriage may thus, by bringing either one or the other of the half nuts into
gear with the spindle, be caused to travel in whichever direction required and so
utilized for operating a fork for moving a belt from a fast to a loose pulley or
vice versa for opening or closing a valve or otherwise controlling or regulating.
Instead of providing a single revolving spindle cut with both a right and left
handed screw thread as above described it will be obvious that two spindles may
be provided with the same result, these being cut, either, with a left or right hand
screw thread respectively and revolved by suitable gearing in the same direction,
or both cut with right or left hand screw threads and revolved in opposite
directions so that when one of the half nuts, the threads in which corresponds with
those on the spindles with which they are arranged to gear, is thrown into gear,
the carriage or cross head will be moved in one direction and when the other half
nut is brought into gear the carriage is moved in the opposite direction in the same
manner as when one spindle is used.
The movement of the V shaped piece so as to throw either one or the other of
the half nuts into gear with the spindle may be effected through the rise and fall
of a governor of any ordinary construction, a float or any other suitable means, but
where however the device is utilized for regulating the charging of secondary or
storage batteries by moving the driving belt of the dynamo from the loose to the
fast pulley or vice versa, we purpose using electro magnets to effect this object.
These electro magnets are secured in any suitable position to the carriages and
their coils are connected to a switch operated from the carriage by means of which
a current may be passed through one or the other of the magnets and one of these
excited so as to attract an armature on one or the other of the free ends of the
V shaped piece and consequently bring one of the half nuts into gear with the
spindle thereby moving the carriage in the direction required to transfer the driving
belt of the dynamo to or from the fast pulley of the actuating mechanism. The
completion of the circuit through the switch and the electro magnets is governed
by the rise and fall of a hydrometer so arranged that when it falls below a given
point it strikes a contact which completes the circuit and as a consequence that
half nut is brought into gear with the spindle which will move the carriage in the
direction to transfer the driving belt of the dynamo from the loose pulley to the
fast pulley of the driving mechanism so as to re-commence the charging of
the storage batteries.
The hydrometer will then consequently commence to ascend and as the circuit
through the electro magnets is broken by the reversal of the switch operated by
the carriage immediately this arrives home at either end the driving belt of the
dynamo is left on the fast pulley of the driving mechanism. When, however, the
hydrometer has risen to a point indicating that the batteries are charged as these
latter will bear further charging, the contact which it is arranged to strike does
not directly complete the circuit through one of the electro magnets actuating one
of the half nuts, but is arranged to throw into gear other mechanism which will
allow the dynamo to be run for any further period desirable. For this purpose
this contact which the hydrometer strikes as it rises completes a local circuit in
which the coils of an electro magnet are situated.
This electro magnet when excited attracts an armature which normally holds
down one end of a weighted lever consequently allowing the unweighted end of
said lever to rise, and arms projecting therefrom to move a clutch which throws a
suitable train of wheels into gear with the screw spindle with which the half
nuts gear and at the same time break the local circuit by suitably arranged
contacts.
On the spindle of the last of these train wheels contacts are secured which, when
the said spindle has been sufficiently revolved and the dynamo consequently
allowed to further charge the batteries, completes the circuit through that electro
magnet on the carriage which will cause the latter to travel in the direction to

page_text: '
transfer the driving belt of the dynamo from the fast to the loose pulley of the
driving mechanism and so discontinue the further charging of the batteries.
an
And in order that our invention may be more fully understood and carried into
practice we will now proceed to describe the same with reference to the accom-
panying drawings, of which Fig. 1 is a plan; Fig. 2 a side elevation, and Fig.
end elevation of our improved appliance in which a single screw threaded spindle
is used; Fig. 4 diagram of the electrical apparatus for controlling the movement
of the half nut when the appliance is used for regulating the charging of secondary
or storage batteries.
Mounted in bearings a is the spindle having a right and left handed screw
thread cut or formed thereon and gearing preferably by band pulley c to a part of
the mechanism to be controlled so that it may be revolved continuously in one
direction.
Sliding upon guides d is a cross head or carriage e to which is hinged by pivot f,
at its apex or bend, a V or similarly shaped piece g carrying or having secured to
each of its free ends thereof a half nut which nuts are cut with a left and right
hand screw thread respectively so that by the movement of the hinged piece g in
one or the other direction one or the other of the nuts will be brought into gear
with the screw threaded spindle and as a consequence the cross head carriage
caused to travel in the desired direction to transfer a driving belt from a fast to a
loose pulley or vice versa by means of a suitable fork carried or operated by the
cross head or carriage, open or close a valve or otherwise utilized for controlling
or regulating.
The movement of the piece g may be effected by suitable connections through
the rise and fall of an ordinary governor, a float or other means, but when the
device is used for regulating the charging of secondary or storage batteries by
moving the driving belt of the dynamo from the fast to the loose pulley or vice versa,
we purpose using electro magnets to effect this object.
These electro magnets k (Fig. 4) of which there are two, are secured in any
suitable position to the carriage é and their coils are connected to a switch
operated from the carriage by means of rod ¹ so that a current may be passed
through one or the other of the magnets and one of these excited so as to attract
an armature on one or the other of the free ends of the V shaped piece g and
consequently bring one of the half nuts into gear with the spindle, thereby moving
the carriage in the direction required to transfer the driving belt of the dynamo to
or from the fast pulley of the actuating mechanism.
The switch may be of any suitable type, but is preferably constructed of a disc
mounted to revolve upon a pivot 2 and provided with two contact pieces 1. This
disc carries two V springs and, has gearing with teeth on its periphery, two
spring-actuated pawls 1, said V springs and spring-actuated pawls being so
arranged that the lever first compresses one of the springs, as the carriage
approaches one end of its travel, and then strikes one of the spring-actuated pawls,
throwing this out of gear with the disc, and allowing the previously compressed
V spring to revolve said disc in the proper direction to make one and break the
other of the circuits through the medium of the contact pieces 1.
The completion of the circuit through the switch and the electro magnets is
governed by the rise and fall of a hydrometer m so arranged that when it falls
below a given point a projection thereon strikes a contact n which completes the
circuit and as a consequence that half nut is brought into gear with the spindle
which will move the carriage in the direction to transfer the driving belt of the
dynamo from the loose to the fast pulley of the driving mechanism so as to
re-commence the charging of the storage batteries, the circuit being broken
immediately the carriage or cross head arrives home at either end by the reversal
of the switch which is operated by it.
The hydrometer will then ascend, leaving the driving belt of the dynamo on the
fast pulley of the driving mechanism, until it has risen to a point indicating that
the batteries are charged. As these latter will bear further charging, the contact o

page_text: which the bydrometer is arranged to strike does not directly complete the circuit
through one of the electro magnets actuating one of the half nuts, but is arranged
to throw into gear other mechanism which will allow the dynamo to be run for any
further period desirable. For this purpose this contact which the hydrometer
strikes as it rises completes a local circuit in which the coils of the electro magnet p
are situated.
This electro magnet p when excited attracts an armature mounted on the end of
hinged rod q which normally holds down one end of a weighted lever consequently
allowing the unweighted end of said lever to rise and arms, projecting therefrom
to move an ordinary clutch which throws a suitable train of wheels t into gear
with the end of the screw spindle b and at the same time break the local circuit by
suitably arranged contacts u.
On the spindle of the last of these train wheels contacts are secured which,
when the said spindle has been sufficiently revolved and the dynamo consequently
allowed to further charge the batteries, completes the circuit through switch / and
that electro magnet on the carriage which will cause the latter to travel in the
direction to transfer the driving belt of the dynamo from the fast to the loose
pulley of the driving mechanism and so discontinue the further charging of the
batteries and at the same time by means of cord w, running on loose pulleys, and
hit and miss lever a which is operated by the carriage or other suitable means
operate the lever r so as to return it to its original position, the circuit being
broken immediately the carriage arrives home by, the reversal of the switch 7.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
(1.) Regulating or controlling mechanism consisting essentially of one or more
revolving screw threaded spindles with which gear half nuts supported by a sliding
carriage substantially as and for the purpose described and illustrated in the
accompanying drawings.
(2.) An electrical governing appliance in which the making and breaking of two
or more circuits is effected by the rise and fall of a hydrometer one or more of said
circuits being completed or broken by a contact or contacts operated directly by
the hydrometer and the second or remaining circuits completed or broken by a
contact operated by time mechanism or contacts set in motion by intermediate
mechanism, the operation of which is controlled by an electro magnet situated in a
local circuit which local circuit is completed or broken by a contact operated by
the hydrometer as and for the purpose described.
(3.) The combination with controlling or regulating mechanism as claimed in
Claim 1, of electrical governing appliances as claimed in Claim 2 for regulating
the operation thereof substantially as described and illustrated in the accompanying
drawings.
Dated this 18th day of January 1895.
66
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicants.