An Improved Fastening for Cabin and other Doors and Windows.
Year: 1894

page_text: Date of Application, 30th May, 1894
Complete Specification Left, 28th Feb., 1895-Accepted, 9th Apr., 1895
PROVISIONAL SPECIFICATION.
An Improved Fastening for Cabin and other Doors and Windows.
I, ANTONIO IZIDRO GONSALVES, of 106, Rua do Ouvidor, Rio de Janeiro,
Brazil, Merchant, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a fastening for state room or cabin and other doors or
casement windows, having for its principal object to secure the door or casement
ajar, for purposes of ventilation, in such a manner that it cannot be further opened
from the outside, the same fastening being also adapted for securing the door ajar,
but so that it can be opened from the outside, and also for locking it in the closed
position.
The fastening consists of two parts, one being a flat latch bar or link having an
eye at one end by which it is loosely jointed to a loop fixed to the door or window
frame, the part of the bar adjacent to the eye being of diminished width so as to
form a neck portion for a purpose next described, whilst the free end of the latch
bar has a notch in its lower edge and an offset or stop projecting from one face.
The other part of the fastening is a catch plate or staple preferably of L-shape
in plan view, attached to a base plate which is fixed to the inner face of the door
so that the one member of the L-shaped staple projects from the face, and the
other member from the edge, of the door.
The last mentioned member has a shaped slot in it, the horizontal member of
which slot opens out at the end of the staple and is of only just sufficient width to
give passage to the neck portion of the latch bar or link whilst the vertical member
When
of the slot is just large enough to allow the latch bar to slide through it.
the latch bar is thus introduced, which can only be done when the door is quite
closed, the laterally-projecting offset or stop at its extremity limits the sliding
motion of the latch bar through the staple and consequently the extent to which
the door can be opened, whilst the notch in the lower edge of the latch bar by
engaging with the lower part of the staple through which the latch bar slides,
prevents motion in the opposite direction and so holds the door open to the full
extent permitted by the length of the latch bar so that it cannot be closed by the
wind or by the movement of the vessel in the case of a cabin door. As the latch
bar can only be disengaged from the staple by first completely closing the door,
the door can only be thus fastened and unfastened from within the cabin or
chamber.
In order to also enable the door to be thus secured ajar from the outside, the
staple has a notch in its upper edge with which the notch in the latch bar may
engage, but when secured in this position the door may be opened from the
outside.
In order to secure the door in the closed position the member of the L-shaped
staple, which is at right-angles to the plane of the door also has a notch in its
per edge in which the latch bar may be engaged, the latter being in this case
swung upon its joint 'into a plane parallel to the door so as to lie in a more or less
inclined position across the joint of the door and its frame.
nn1 1
1044
A. I. GONSALVES,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.

page_text: RESEP acting for Cavin and owner Doors and windows.
1, ANTONIO IZIDRO GONSALVES, of 106, Rúa do Ouvidor, Rio de Janeiro,
Brazil, Merchant, 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 :-
--
My invention relates to a fastening for state room or cabin and other doors
(applicable also to casement windows) having for its principal object to secure
the door ajar or in the partly opened position for purposes of ventilation, in such
manner that it cannot be opened from the outside far enough to admit any person,
the same fastening being also adapted for securing the door in the same position
but so that it can be opened from the outside, and. also.as a bolt for locking it in
the closed-position..
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein
Figure 1 is a face view, and Figure:2 a plan, of the fastening in the unfastened
position.
Figure 3 is an elevation, and Figure 4 a plan, of the fastening as. applied to
hold the door ajar.or in the partly. open position so that it cannot be opened from
the outside, the same figures: shewing, in dotted. lines, the mode of using the
fastening when it can be fastened and unfastened from the outside.
Figure 5 shews the use of the fastening is as a bolt for locking the door in the
closed position.
The same letters of reference denote: like parts.in.all the figures.
The fastening consists of two parts;. one. part being a flat latchi bar or link a
having an eye bat one endu by. which it. is: loosely jointed to a loop c fixed: to the
jamb d of the door frame, the part of the. bar. a adjacent to the eye being. of
diminished width so as to form a neck portion e for a purpose: next described,
whilst the free end of the latch bara has an offset or lug projecting from one
face and a notch in its lower edge..
The other part of the fastening is a catch plate or staple of the L-shape shewn
in plan view in Figures 2 and 4. It is attached to a base plate which is fixed to
the inner face of the door h. The part of the staple which projects beyond the
edge of the door has a shaped slot or aperture j in it and this slot opens out
at the end of part of the staple and forms a mouth j¹ to admit the latch bar a,
this mouth being of only just sufficient width to give passage to the neck e of the
latch bar or link a. The part of the slot is just large enough to allow the latch
bar a to slide through it so that when the latch bar a is thus introduced into the
slot (which can only be done when the door is quite closed) the laterally-projecting
offset or stop at the end of the latch bar limits the sliding motion of the latch
bar through the staple, and consequently limits the extent to which the door can
be opened. The extent of opening the door is illustrated in Figures 3 and 4,
from which it will be seen that the door is just opened far enough for ventilation
but not sufficiently to admit any person. The nutch g in the lower edge of the
latch bar a engages with the lower edge of the slot j.and thus the door is held.open
to the full extent permitted by the length of the latch bar d so that the door
cannot be closed by a current: of air or. by the movement of the vessel. in the case
of a cabin door. As the latch bar can only be thus engaged with, or disengaged
from, the staple by passing the neck e of the latch bar through the mouth j' of the
slot, and as to do this it is necessary to completely close the door, it follows that
the door can only be thus fastened and unfastened by a person within the cabin or
chamber.

page_text: In order to also enable a person outside the cabin or chamber to apply the
fastening to hold the door ajar, the part of the staple has a notch k in its upper
edge in which the notched part g of the latch bar may engage, as shewn in dotted
lines in Figures 3 and 4. This will prevent the door being blown or swung
further open, or shut, but the door when thus secured may be opened from the
outside.
In order to enable the fastening to be used as a bolt to lock the door in the
closed position the member of the staple which stands out from the inner face
of the door also has a notch in its upper edge in which the latch bar a may be
caused to engage when the door is closed, by swinging the latch bar
joint into the inclined position shewn in Figure 5.
upon its
In this position the latch bar a
is in a plane parallel to the plane of the door and lies across the joint between the
door hand the jamb d of the door frame.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. The herein described fastening adapted to be operated either from the inside
only, or from the inside or outside, for holding cabin doors rigidly ajar (partly
open) and adapted also for use as a bolt for locking the door in the closed position,
said fastening consisting of a flat bar a loosely jointed by loops b, c, to the joint of
the door frame and provided with a narrow neck near the joint and with a stop-f
and a notch g at its other end, in combination with a staple of Z form in plan
rigidly fixed to the door and provided with a slot or aperture j, j, adapted to
receive the latch bar and to engage therewith in one position or way, and also
provided with notches, k, l, for the engagement of the latch bar with the staple
in the other positions or ways, substantially in the manner and for the purpose
described.
Dated this 28th day of February 1895.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.