Improvements in Devices for Retaining Doors or the like in their Open Positions.
Year: 1891

page_text: Date of Application, 3rd Nov., 1891
Complete Specification Left, 11th May. 1892-Accepted, 9th July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Devices for Retaining Doors or the like in their
Open Positions.
1, NIELS GEORG SÖRENSEN, of Blasieholmstorg, 11, Stockholm in the Kingdom
of Sweden, Merchant, do hereby declare the nature of this invention to be as
follows:-
It is often desirable and in many cases necessary to provide some device by
which a door may when desired be held open, as for instance, on board ship, or in
connection with doors provided with door closers. The devices heretofore used
for this purpose bave however given rise to an unnecessary amount of trouble and
annoyance in as much as when required to shut the door it has been necessary to
disengage the door from the hook or similar device which is used to retain the said
door open.
According to the present invention this inconvenience is avoided by applying
combined catches to the door and to the frame surrounding the door (the wall),
which catches, not only secure the door automatically, if the latter is opened
sufficiently, but are also actuated by turning the handle or the key of the lock, so
as to disengage the door from the catch. This device consists of a hook-shaped catch
fixed to the wall, towards which the door is opened, which catch, when opening the
door, engages with another catch fixed in the inside or on the outside of the door.
A pushing or pulling bar is also provided which is placed on the inside or on the
outside of the door and so combined with the said door-lock that, when turning the
handle or the key the said bar is moved up or down or sideways and then directly
or indirectly actuating the catch applied to the door, so that both catches are
released from one another.
It is evident that the same result may also be obtained by a single catch fixed
either to the wall in order to engage at its opposite end with a plate or the
like fixed to the door or rice versa. The connection of the bar with the lock
must evidently be adapted to suit the nature of the lock. If a lock of the
kind described in former Letters Patent No. 2155 of 1889 is employed the bar
may be combined either directly with the holt movable up and down or indirectly
by means of a suitable link joint or lever connection. If on the contrary spring
locks are used having a bolt movable horizontally, the bar is connected in a suitable
manner with the bolt or with the tripper or the handle or with some other movable
parts of the lock.
In carrying the said invention into practice the catch is, as already stated, fixed
to the wall towards which the door is opened. The said catch consists of a hook
either rigid or elastic which is conveniently fixed to the wall so that if required
it may be moved. The pushing bar may be applied to the inside of the door. This
bar is at the top provided with an angle below which the hook may enter through
an opening in the door, when the bar engages with the hook. At its lower end the
bar rests upon or is connected with a bolt movable up and down so that by
actuating the lock handle to raise the bolt, the bar is also raised, whereby the
door is disengaged from the hook. The hook may evidently be mounted on a pivot
and have an elastic connection and be actuated by the pushing bar, so as to be
disengaged from the door. If it is desired to disconnect the bar so as to remove
the same in which event it may be replaced by a string, the tripper actuating the
bolt may be provided at its centre with a shoulder, which tripper actuates the one
end of a pivoted lever to the other end of which the bar is secured. Other suitable
connections between the tripper or the holt and the bar may be arranged so that
the above may serve merely as an example.

page_text: In the case of a double catch the door is also provided with a hook-shaped catch
consisting of a small pivoted arm united with the bar. The both catches will,
when the door is sufficiently opened, engage one with another and will be discon-
nected one from another by raising one of them by means of the pushing bar as
above described. It will also be understood that the catch in the door can be
lengthened so as to extend to the outside of the door, so that the same may engage
with a plate or the like fixed to the wall.
The tripper in a common spring lock may be combined with the bar, so as to
actuate the bolt of the lock, when the handle is turned in the one direction, and
the bar, when the handle is turned in the other direction. The tripper is therefore
provided with an arm in which is formed a slot in which the end of the bar slides
when the handle is turned in the ordinary way. When turning to the left the bar
is pulled downwards and the bolt is not actuated.
The catch may be placed near the door at any height or at the top or bottom of
the door. The said catch may be placed on a level with the lock, when it can
engage directly in the lock in such a way as to be disconnected by some part of
the lock, when the handle is turned. It will be understood that the bolt may be
provided with an upright projection, with which the catch engages from above
when the bolt is in its ordinary position. If the bolt is now drawn in by
means of the handle, the said projection will move to the side of the catch,
and the door will be free. In this way the pushing or pulling bar is rendered
superfluous.
The device above described may evidently be advantageously used in connection
with street doors, gates and the like.
HASELTINE, LAKE & Co.,
46, Southampton Buildings, London, W.C., Agents for the Applicant
COMPLETE SPECIFICATION.
Improvements in Devices for Retaining Doors or the like in their
Open Positions.
I, NIELS GEORG SÖRENSEN, Merchant, Blasieholmstorg 11 Stockholm, in the
Kingdom of Sweden, 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:-
It is often desirable and in many cases necessary to provide some device by
which a door may when desired be held open, as for instance, on board ship, or
in connection with doors provided with door closers.
The devices heretofore used for this purpose have however given an unnecessary
amount of trouble and annoyance in as much as when required to shut the door it
has been necessary to disengage the door from the hook or similar device which is
used to retain the said door open.
According to the present invention this inconvenience is avoided by applying
combined catches to the door and to the frame surrounding the door or the wall,
which catches, not only secure the door automatically if the latter is opened
sufficiently, but are also actuated by moving the handle or the key of the lock, so
as to disengage the door from the catch.
In the accompanying drawings
Figure 1 represents a side elevation partly in section of the part of the retaining
device which is applied to the door looking towards the side of the said door which
is closed.
Figure 2 is a view in section looking towards the edge of the door and
Figure 3 shows a modification of the device.
This retaining device is intended for doors having a freely falling bolt movable
up and down as described in the Specification of former. Patent No. 2155 of 1889,

page_text: and consists of two principal parts, of which one is secured to the door and com-
bined with the lock bolt and the other fixed to the wall towards which the door is
opened this latter constituting the catch proper.
Referring to Figures 1 and 2 a designates the bolt movable up and down
engaging in the eye or socket b fixed to the door-frame or other door and which
can be raised by turning the spindle d, which is as usual provided with a tripper e
and a handle, or by means of the handles intended for this construction and which
are described in Letters Patent No. 19015 of 1889 and No. 7742 of 1890. The
bolt is by means of a pin a¹ connected with a bar e located in the edge of the door
and extending to or near to the top of the door. The said bar has at the top a
lateral projection f in front of which is formed an opening g in the door. Just
opposite the said opening and so as to be able to catch the lower edge of the pro-
jection is fixed to the wall towards which the door is opened the hook h, Figure 2
being of a sufficient length for catching the opened door before described. The
hook h, is bevelled at the outer end so that the bar e with its projection f can slide
over the same. In order to disengage the door, the bolt a is raised by means of
the door handle so that the bar e and the catch will be disconnected.
It is evident that the hook can be adapted to engage with the bar e, in many
different ways, provided always that the latter is so arranged that a longitudinal
displacement of the same by means of the door handle will cause the hook to be
disengaged. Thus for instance the top of the bar may be provided with a hole
into which the said hook engages. The said hook may if desired, engage with the
door direct.
The modification shown in Figure 3 consists in providing the door with a
hook i combined with the bar e which hook engages with the hook / when opening
the door but which can be disconnected from the latter by raising the bar e as
above described. If the hook i is made sufficiently long, the hook h may be dis-
pensed with and the hook first mentioned may engage with a plate fixed to the
wall and corresponding to the hook h. The hook hand the plate may if desired
be located below the lock of the door. This is indicated by dotted lines in Figure 1.
The bar e is connected to a pin el fixed to the bolt and consequently moving there-
with when ascending, whereby the bar also will be raised. The hook h and the
plate are more conveniently fixed to the wall so that it may be easily adjusted if
the door should sink or settle down as shown in Figure 2 see also the former
Patent No. 8801 of 1889.
The device herein before described may be used for retaining street doors gates
and the like in their open positions.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. The herein described device for retaining doors or the like in their open
positions consisting of the bar (e) connected with the freely falling bolt (a) moving
vertically and of the hook (h) fixed to the wall which hook, when the door is
opened sufficiently, will engage either with the bar (e) or with the door direct and,
when raising the bolt by means of the handle or key, be disconnected from the bar
or the door.
2. The above described device consisting of the bolt (a) the bar (e) and the
hook (i) the latter being combined with the said bar and engaging with the
hook () fixed to the wall or with a plate fixed to the wall so that when the bolt
is raised by means of the handle or key the said bar will be disengaged from the
hook (A) or the plate.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.