Improvements in Mechanism for Closing and Opening Bulkhead and other Doors.
Year: 1899

page_text: Date of Application, 18th May, 139)
Complete Specification Left, 19th Feb., 1900-Accepted, 13th May, 1900
PROVISIONAL SPECIFICATION.
Improvements in Mechanism for Closing and Opening Bulkhead
and other Doors.
We, ALEXANDER WILLOUGHBY MONTGOMERY-MOORE, of Holland Lodge, Eltham
Road, Lee, Engineer, and Joux PRESTON, of Stowage House, Deptford, Engineer,
both in the County of Kent, do hereby declare the nature of this invention to
be as follows:-
This invention relates to improvements connected with the system described
in the Specifications of the Patents Nos. 15645 of 1892, 3133 of 1894, 27286 of 1897,
and 26558 of 1898.
For the purpose of closing and opening doors and especially bulkhead doors an
electric motor has been provided operating each door or group of doors either
directly or through suitable gearing. The regulating switch for supplying the
current is placed in the chart room or any other convenient place. If a dynamo
is not continually running, accumulators are provided.
According to this invention means are provided to close the doors automatically.
The conductor of the motor circuit is cut and the two ends are held apart in a
cell or small chamber, which is perforated to admit water should any enter
that compartment of the vessel in which the cell is placed. Water entering the
cell completes the circuit and the motors close the doors.
Or a conductor may pass round the ship and be wound on magnets near each
door. The magnets control links or switches which are released on the circuit
being interrupted by the conductor being broken. The links or switches on being
released complete the motor circuit and the doors are closed.
Dated this 17th dar of Ver 1800
A. W. MONTGOMERY-MOORE.
JOHN PRESTON
COMPLETE SPECIFICATION.
Improvements in Mechanism for Closing and Opening Bulkhead
and other Doors.
We, ALEXANDER WILLOUGHBY MONTGOMERY-MOORE, of Holland Lodge, Eltham
Road, Lee, Engineer, and JOHN PRESTON, of Stowage House, Deptford, Engineer,
both in the County of Kent, do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to improvements connected with the system described

page_text: in the Specifications of the Patents Nos. 15645 of 1892, 3133 of 1894, 27286 of 1897,
and 26558 of 1898.
For the purpose of closing and opening doors and especially bulkhead doors an
electric motor has been provided operating each door or group of doors either
directly or through suitable gearing. The regulating switch for supplying the
current is placed in the chart room or any other convenient place. If a dynamo
is not continually running, accumulators are provided.
According to this invention means are provided to close the doors automatically.
The conductor of the motor circuit is cut and the two ends are held apart in a
cell or small chamber, which is perforated to admit water should any enter
that compartment of the vessel in which the cell is placed. Water entering the
cell completes the circuit and the motors close the doors.
Or a conductor may pass round the ship and be wound on magnets near each
door. The magnets control links or switches which are released on the circuit
being interrupted by the conductor being broken. The links or switches on being
released complete the motor circuit and the doors are closed.
Figure 1 of the drawings illustrates a cell made in accordance with this inven
tion.
a is the cell having a removeable cover b. cc are the ends of the conductor
and d are perforations by which water can enter the cell.
Figure shows a sliding door e operated by an electric motor f preferably
connected by two circuits to the source of electricity, the one gg including a
cell a and the other h h including a switch to be operated by hand as required.
Figure 3 shows the arrangement in which conductors k passing round the
ship are wound round a magnet near the door e. Normally this magnet holds
down the armature m but if the conductors are broken, the armature rises and
the circuit from the source of electricity to the motor is completed through
the switch m¹.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. In mechanism for closing and opening bulkhead and other doors by means
of electric motors, a perforated cell within which the ends of a divided conductor
are held apart and a circuit for supplying current to the motors thereby kept
incomplete until the cell fills with water substantially as described.
2. In mechanism for closing and opening bulkhead and other doors by means
of electric motors a conductor which passes round the ship and energizes electro
magnets controlling contact mechanism by which if the conductor is broken a
circuit to the motor or motors is completed and the doors closed substantially as
described.
3. Means for closing bulkhead and other doors substantially as described and
illustrated in the drawings.
Dated this 17th dox of Fahruary 1900
A. W. MONTGOMERY-MOORE,
JOHN PRESTON,