New or Improved Mechanism for Automatically Fastening Doors, Gates, and the like.
Year: 1892

page_text: Date of Application, 14th June, 1892-Accepted, 8th Oct., 1892
UUMI LEIE DI PULTIVATION
New or Improved Mechanism for Automatically Fastening Doors,
Gates, and the like.
We CHARLES ALBERT DUKE George, and HeNRY HARDING trading as
George and Harding, of Lansdowne Road, Bournemouth, Builders and Contractors,
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:-
Our invention relates to a new or improved mechanism for automatically fastening
doors, gates and the like and is applicable to every description of sliding as well as
swing doors.
In the accompanying drawings
Fig. 1 is a front view partly in section of part of a door and corresponding jamb
or post, and Fig. 2 is an end view of the said jamb, these figures illustrating the
application of our invention to a sliding door.
Figs. 3 and 4 illustrate the application of the said invention to a hinged gate,
Fig. 3 being a front view partly in section of the gate post and corresponding gate
frame or upright and Fig. 4 an end view of the latter.
Referring to Figs. 1 and 2 the door style D is furnished with suitable recesses to
receive the bases n of the catches c, which bases are flush with the front edge of
the said door style and are secured in position by screws. In the style D is more-
over counter sunk a lock L furnished with a bolt b. The door jamb J is recessed
throughout as shown, this recess containing in superposed order the bar p', the
plate p and the vertically sliding locking plate a. The bar p has its two
extremities bent over at right angles to form lugs which extend into the slots s¹ gå
formed in the plate p and through which pass the screws securing the same to the
plate a. The plate p has a rectangular flange along its longitudinal edges in order
to be snugly fitted in the corresponding recess formed therefor in the jamb J, being
moreover tightly screwed to the latter.
The plate p is furnished with three slots or openings, the two symetrically
arranged slots before mentioned which guide and limit the travel of the two
projections of the bar p and hence that of the sliding plate a to which this bar is
fixed, and a central slot wherein is shot the bolt b of the lock L. The jamb J is
furnished with two recesses o in which the catches c can enter and with a lateral
recess R at the top to allow of the person wishing to open the door to insert a
finger in order to raise the plate a by its handle h, which is located in the recess r,
Fig. 2. The said sliding plate a has two slots one at the top, the slot d which
allows of the catch c entering the recesses o, and the central slot s permitting the
passage of the bolt as it is shot into the slot of the plate p.
The plate a is terminated at its lower end by a notch e coming astride on the
neck of the lower catch c when the door is closed. The top of the upper slot d
as well as of the notch e are bevilled in front to allow of the catch c sliding readily
therein.
When the door is open the plate a assumes its lowermost position so that when
the door style D is brought against the jamb J, the heads of the catches c bear
respectively against the bevilled upper edges of the slot d and notch e so that when
the door is pushed to, these catches raise, as they bear against the said edges of the
sliding plate a in order to enter the recesses o. As soon as the catches chave
entered these, their necks being now located in the slot d and notch e, the plate a
is no more supported thereby and drops by gravity upon the said necks hence
locking the catches c as clearly shown in Fig. 1. By raising the plate a in the
manner before stated the catches can be withdrawn from their recesses o and the

page_text: door released. It is obvious that we may use one catch only instead of two as
shown.
In the arrangement shown in Figs. 3 and 4 the plate a is not provided with
notches but is furnished with a locking bar m screwed thereto and the shape of
which is clearly shown in these figures; the lower end of this locking bar is forked
to hold the cylindrical, catch c, one catch only being used in this case.
The top of
this fork is bevilled to enable the catch to raise the plate a as in the arrangement
first described. D is the gate post and J the upright of the gate frame.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is :-
:~
1. The adaptation to sliding doors of mechanism for automatically fastening the
same, arranged and constructed, and operating substantially as herein described and
shown and for the purpose set forth.
2. The adaptation to hinged gates of mechanism for automatically fastening the
same arranged, constructed and operating as herein described and shown and for
the purpose set forth.
3. The improved mechanical means for fastening doors, gates and the like
substantially as herein described and shown and for the purpose set forth.
Dated this 14th day of June 1892.
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents for the Applicants.
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents for the Applicants.