Improvements in or Appertaining to Doors, Gates, or the like.
Year: 1890

page_text: Date of Application, 30th Apr., 1890-Accepted, 28th June, 1890
COMPLETE SPECIFICATION.
Improvements in or Appertaining to Doors, Gates, or the like.
A communication from abroad by PAUL FELKEL, of Pless, Upper Silesia, Kingdom
of Prussia, Mechanic.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.F. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, and 323, High Holborn, in the County of Middlesex, Civil
Engineer, 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 has primarily for its object to enable gates and doors (both for houses
and furniture) to be opened at either side, namely, on the right or the left, which, in
view of the sometimes inconvenient placing of furniture and for many other reasons,
is of great importance. The invention is so designed that it is adapted for attach-
ment to doors of almost any kind or size, and it need only be stocked in say three
sizes.
In the accompanying drawings
Figure 1 represents a closed door with latch on both the right and left sides, the
formor of which is shown depressed for opening the door.
Figure 2 shows in full lines a sectional plan of the door opened from the right side,
and in dotted lines the position of the door when opened from the left.
Figure 3 represents portions of a door and the fittings thereof, showing how they
are adapted to the former, the door being (in order to economise space) vertically
bisected and parts removed.
Figure 4 shows an end elevation of the lock and part of the lock bolts.
Figuro 5 is a plan of the said lock.
As may be seen in Figure 3, the lock mechanism, provided on each side of the
door, is similarly constructed, the locks being, if desired, interchangeable, and capable
of being put either on the right or left side of the door.
The lock consists principally of the lever a with a hole for receiving the spindle,
which, as is usual in locks, is provided with one or two handles as required.
The rods d and d are coupled to the lever a, and they are arranged adjustably
each for itself, that is to say each one may be lengthened or shortened as required.
The part coupled to the lock consists of two bars provided with a number of holes, which
are attached by means of screws with the correspondingly bored bolts and d
according to the height of the door, at their upper or lower ends respectively. The
end of each of these bolts, which are manufactured from flat or square bar iron, carries
a cylindrical bush bb, screwed thereon, which is adapted to slide in a stationary
socket e c¹ connected with the corner iron work of the door, and, on the door being
closed, the said bushes engage the bolt plates e el correspondingly arranged in the
frame of the doorway. In order to secure the mechanism in this position, that is, in
order to be able to lock the door, a spring bolt e (Figure 5) is provided on the lock, a
lugf of which is pushed by the turning of the key into the opening situated in the
nut g
on the latch spindle, so that its revolution is prevented.
If the door be opened on the right hand side, the bolts on the left side rotate
in the holes aforesaid in which the door is, for the time being, hung, and vice
versa.
In order to prevent any attempt at a simultaneous opening of the door from inside
and outside and to prevent, in consequence, its simultaneous detachment from both
the pivots on which it is capable of turning, the bolts leading downwards are connected
by a rod h, situated in the cross bar of the door in such a manner that, on an attempt
being made to open the door from both sides, it is subjected to tension, as the upper

page_text: points of the lower rods tend to separate one from another, which the rod / provents.
If, however, it be desired to lift the door out, the door must be opened, then the
Intchos on the opened side again turned into their position as when the door is closed,
and then the other side opened, whereupon the door can be entirely removed.
If the door is to be opened mainly only from one side, ns may easily be the
case owing to the position of the furniture, etcetera, the other sido may be locked.
In cabinet doors, where an opening from both sides is not required, the cross bur h
can be dispensed with, as well as the locking plates and the handles.
A key can then be used for opening and closing.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
In a door, gate or the like, the arrangement of two bolts dd" and d¹, d movable
vertically, and actuated by latch levers a, on both sides of the door, the ends of which
are provided with bushes and form the hinges of the door, substantially as
described.
Dated this oath ... Oil 1900
WM. P. THOMPSON & Co.,
Agents for the Applicant.