Improvements in Apparatus for Bolting and Unbolting Doors, Windows, and the like.
Year: 1888

page_text: Date of Application, 27th Jan., 1888
Complete Specification Left, 27th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Bolting and Unbolting Doors,
Windows, and the like.
I, JOSEPH KAYE, of Bank House, Kirkstall, Leeds, in the County of York,
Lock Manufacturer, do hereby declare the nature of this invention to be as
follows
The object of this invention is to automatically bolt by the act of closing one or a.
pair of folding doors, windows, or the like, arranged in such a manner that, after the
second door, window, or the like is closed, they cannot be opened as is the case when
the first closing door is secured by ordinary barrel bolts, until the lock bolt of the
second door is withdrawn from the first closing door or the like.
I accomplish my object in the following manner :- mount on the rim, flush or
mortice principle, to the first closing door or the like, two bolts, which when together
are about the length of the door and so connected that, they may be operated by a
spindle and a wheel or wheels gearing with the teeth of a rack or racks formed on the
said bolts; and in one direction by a spring or springs or by turning a wheel by
the spindle. When the door or the like is open, the bolts are kept flush with the
top and bottom edges by a sliding plate, which is moved on the door being closed
into a position for allowing a spring or springs to operate the bolts so as to protrude
beyond the door or the like, thus securing the same, and which is further secured
on the closing of the second door, and locking the same in such a manner that,
the before mentioned bolts cannot be withdrawn until the second door is unlocked
and opened.
T
11 cil
Tona 1888
JOHN WAUGH,
Agent.

page_text: CODIL LEID DIMCIFICATION.
Improvements in Apparatus for Bolting and Unbolting Doors,
Windows, and the like.
I, JOSEPH KAYE, of Bank House, Kirkstall, Leeds, in the County of York, Lock
Manufacturer, 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:-
The object of this invention is to automatically bolt by the act of closing one or a
pair of folding doors, windows or the like arranged in such a manner that after the
second door, window, or the like is closed, they cannot be opened as is the case when
the first closing door is secured by ordinary barrel bolts, until the lock bolt of the
second door is withdrawn from the first closing door or the like.
In order to carry out my improvements I mount on the rim, flush, or mortice
principle two bolts to the first closing door or the like, which when operated by a
spindle and a wheel gearing into teeth formed in the rack of the bolts, in one direction,
and in the other direction the bolts are operated by a spring.
In order to retain the bolts flush with the top and bottom edges of the door, when
open I mount a sliding plate or lever at the top of the bolts, such plate is only moved
away on closing the door, thus allowing the before mentioned spring to operate the
bolts in such a manner as to protrude beyond the door top and bottom and pass
the bolts into a recess in the casement, in which the door fits when closed thus
securing the same : On closing the second door the bolts are further secured by
shooting a bolt from a lock secured in the second door, in between the top and bottom
bolts.
In order that my invention may be more fully understood, I will further describe
the same by making reference to the accompanying sheet of drawings in which,
Fig. 1. represents a side view of my improved mode of securing double doors, part
of framework of the left hand side door being removed, and with the bolts shot out.
Fig. 2. is a similar view having the bolts withdrawn from the door casing.
Fig. 3. is a view of my apparatus as applied to a single door.
Figs. 4. and 5. are details.
To the first closing door I mount on the rim, flush, or mortice principle within the
box formed casing A. two bolts B. and B which are lengthened to that of the height of
the door at C. and the bolts B. and B are for a certain distance formed with
teeth or racks T. T. and are operated by the wheel D. secured to spindle M. gearing
therewith. To the spindle M. is connected the handle for operating the bolts in one
direction only, that is in opening the door.
When the door is open the bolts B. and B are kept flush with the top and bottom
edges by a sliding plate or flat lever E. centred on pin F. as fulcrum in the frame-
work G. The sliding plate E. is kept in position by spring H; on the first door
being closed the said sliding plate E. comes in contact with a striking plate mounted

page_text: in the casement of the door, and is moved from the position shown in Fig. 4. to
that shown in Fig. 5. and thereby allowing the bolis B. and B₁ to be operated by
the spring J. which causes the bolts B. and B¹ to move in the direction of the arrows
and to engage with the recesses K. K. formed in the top and bottom of the casement
of the door, thus securing the first door, in the act of closing alone.
I further secure the bolts B. and B₁ on closing the second door by means of a
lock N. the bolt L. being shot between bolts B. and B' thus preventing the said
bolts being withdrawn until the bolt L. of the lock N. is withdrawn by means of a key
in the ordinary manner.
In Fig. 3. I show in what manner my apparatus may be applied for the purpose
of securing a single door. The bolts B. and B' as shown in detail in the left hand
door of Fig. 1. are secured on or into the frameing of the door, the ordinary
lock N. shewn on the right hand door in Fig. 1. is secured to or into the casement;
on the door being closed the bolts B. and B' are liberated in the manner before
described and the door is again further secured on the shooting of the bolt L. from the
lock N in the casement.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be perforined I declare that what I
claim is
1. The sliding plate or lever E. which retains the bolts B. and B' within the top
and bottom of the door when open, and permits the bolts B. and B₁ to enter the
recesses K. K. in the casement of the door or doors or windows and the like when
closed.
2. The herein described method of securing doors, windows, or the like substantially
as and for the purpose herein set forth.