Improvements in Apparatus for Closing and Opening Bulkhead and other Doors.
Year: 1898

page_text: Date of Application, 15th Dec., 1898
Complete Specification Left, 15th Sept., 1899-Accepted, 15th Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Closing and Opening Bulkhead and
other Doors.
We, ALEXANDER WILLOUGHBY MONTGOMERY-MOORE,
of Holland Lodge,
Eltham Road, Lee, and JoN PRESTON, of Stowage House, Deptford, both in the
County of Kent, Engineers, do hereby declare the nature of this invention to be
as follows:-
-
This invention relates to means of closing and opening the bulkhead doors
which make communication between the compartments of a vessel, the like means
being applicable to other doors.
For this purpose, in the case of a sliding door, which can be moved vertically
or horizontally by a screw or by a rack and pinion, we connect to the screw
spindle or to the pinion shaft a reversible electric motor, either directly or through
suitable gear, and we lead conductors to any convenient place where contacts
can be made to cause the motor to work in either direction. When the door is
hinged, we in like manner apply a reversible electric motor to work an arm or
segment causing the door to turn on its hinges.
Dated this 15th day of December 1898.
ABEL & IMRAY,
Agents for the Applicants.
Improvements in Apparatus for Closing and Opening Bulkhead and
other Doors.
We, ALEXANDER WILLOUGHBY MONTGOMERY-MOORE, of Holland Lodge,
Eltham Road, Lee, and Join PRESTON, of Stowage House, Deptford, both in the
County of Kent, Engineers, 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 means of closing and opening doors and especially
bulkhead doors which make communication between the compartments of a vessel.
being applicable to the system described in the Specifications of the Patents
Nos. 15645 of 1892, 3133 of 1894, and 27286 of 1897 granted to A. W. Mont-
gomery-Moore.
For this purpose in the case of a sliding door which can be moved vertically
or horizontally by a screw or by a rack and pinion, we connect to the screw
spindle or to the pinion shaft a reversible electric motor through suitable gear

page_text: and we lead conductors to any convenient place where contacts can be made to
cause the motor to work in either direction.
When the door is hinged we in like manner apply a reversible electric motor
to work an arm or segment causing the door to turn on its hinges
It is advisable to provide each door. with an indicator to show to the officer in
charge when each door is properly closed. The simplest method is to fit an
electric press button, similar to that used for electric bells, for the door to close
against and to provide a corresponding indicator or drop shutter within sight
or the officer. The door closing presses the button making an electric contact,
the circuit thus completed contains an electro magnet which attracting its arma-
ture lets fall the indicating shutter and the shutter in its movement at the same
time that it conveys the information desired, again opens the circuit.
Alarm bells are provided to give notice of the closing of the doors and there
are also bells to be rung by anyone accidentally, shut in by the door.
The drawings illustrate different arrangements constructed in accordance with
this invention.
Figures 1, 2 and 3 are front elevations of different arrangements of horizontally
sliding doors.
Figures 4, 5 and 6 are front elevations of different arrangements of vertically
sliding doors and Figures 7, 8 and 9 are side elevations of the same.
Figures 10, 11 and 12 are front elevations of arrangements of hinged doors
and rigures 13 and 14 are plans of the same.
1:
In all the figures a is the motor actuating the shaft which' through suitable
gear closes and opens the door c.
In Figures 1, 2 and 3 the doors are moved by means of a screw thread d on
the shatte which engages with a nut f on the door.
The shaft e is actuated by the shaft of the motor in Figure 1 by means of a
worm and worm wheel e'; in Figure 2 by means of a belt g which passes over
pulleys on the shafts; and in Figure 3 by means of spur wheels 633 on the
shafts.
In Figures 4, 5, 7 and 8 the doors are moved by means of a screw thread on the
shafte which engages with a nut f on the door in Figures 6 and 9 by a pinion e
on the shaft e which gears with a rack c¹ on the door.
In Figures 4 and 7, and 6 and 9, the shaft e is actuated by the shaft 6 of the
motor by means of spur wheels on the shafts; in Figures 5 and 8 by means
of a belt g which passes over pulleys be on the shafts. The arrangement shewn
in Figure 6 being used when there is not sufficient head room for that shewn in
Figure 4.
In Figures 1, and 5 h is a clutch and h¹ a' clutch lever for disconnecting the
intermediate gear from the shaft e.
In all the arrangements the doors can be shut by hand by a handle i carrying
a pawl which actuates the ratchet k. on the shaft e.
In Figures 10 and 13 a worm 6' on the shaft engages with a worm wheel
which through bevel gear turns the pivot m of the door.
In Figures 11 and 14 a worm 61 on the shaft b engages with a worm wheel as
before. Fixed to the worm wheel is a pinion n engaging with a rack o which
is connected to another rack p engaging with a pinion q.on the pivot m of the door.
In Figure 12 the shaft b of the motor has fixed to it a spur wheel r gearing with
another spur wheels on a parallel shaft s¹. On the shaft s¹ is a screw thread
which gears with a nut on a rack u engaging with a pinion von the pivot m
of the door.
In these arrangements where the doors are hinged the contacts are so arranged
that when the door is closed 'the circuit is completed through another motor w
which turns a shaft thus actuating through suitable gear, such as the spur
wheels, the bolt which locks the door, or the bolt may be shot by the
handle carrying pawl which engages with the ratchet z¹. As before clutches h
and clutch levers h¹ are provided for disconnecting the intermediate gear,

page_text: Figure 15 is a switch board fixed in any convenient place to which the leads
from the motors are secured.
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. The combination with bulkhead and like doors of electric motors in the
manner indicated by the drawings.
2. The combination with bulkhead and like doors of electric motors and also
hand gear in the manner indicated by the drawings so that either one or the
other may be employed to open or close the door.
3. The combination with the subject matter of the preceeding claims of means
for operating the bolts for securing the doors electrically in the manner indicated
in the drawing.
Dated this 12th day of September 1899.
A. W. MONTGOMERY-MOORE,
JOHN PRESTON.