Year: 1886

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 consists of a sash fastener, having a latch, which, when with-
drawn, from the locking bar, completes an electric circuit, whereby an alarm is
sounded.
It also consists of a bolt adapted to secure the upper and lower sashes, and a
lock adapted to control said bolt, whereby improper opening of the bolt is
prevented.
It further consists of a hinged plate connected with the upper sash and adapted
to be thrown out in the path of the bolt of the lower sash so as to prevent opening
of the sashes should said bolt be in unlocked position or fail to hold the sashes.
In the accompanying drawing:
Figure 1 represents a partial front view and partial vertical section of a burglar
alarm and sash fastener and lock, embodying my invention.
Figure 2 represents a partial side elevation and partial vertical section thereof.
Figure 3 represents a horizontal section in line a, x, Figure 2.
Similar letters of reference indicate corresponding parts in the several figures.
A. represents a window frame, and B, C, the upper and lower sashes respectively.
D represents a lock beneath which is a latch E, and F is a bolt secured to the
lower sash, it being noticed that the case of the lock D and latch E is secured to
the frame A, adjacent to the meeting rail of the sashes. The bolt D¹ of the lock
and the latch E extend parallel in the direction of the width of the sashes, and the
bolt F extends at a right angle to the width of the sashes, and is so disposed that
when the bolt of the lock is shot forward, it is projected across the heel end of the
bolt F, whereby the latter is prevented from being opened.

page_text: Secured to the upper sash is a plate G, which has openings to receive the bolt F,
and thus lock the two sashes; and secured to the lower sash is a divisional
plate H, between the spaces of which the nose of the latch E is adapted to enter
and thus fasten the sash.
Connected with the frame A is a spring or finger J, so disposed that when the
latch E is withdrawn, its inner end comes in contact with said spring, the latter
being in electrical communication with a gong or bell, the circuit whereof is formed
when the latch is in contact with said spring, the result whereof is the ringing of
said bell.
K represents a guard which is so hinged to the plate G, or to the upper sash as
to be thrown out over the vertical path of the bolt F, whereby should said bolt be
thrown back or fail to retain its hold in the plate G as a keeper, the movement of
the sashes causes the abutment of the guard K and bolt F, thus controlling the
sashes.
When the bolt F is shot into the plate G, the key of the lock D is turned,
whereby the bolt of said lock is projected across the path of said bolt F, and the
latter thus controlled, the sashes being accordingly fastened. Should, however,
the bolt F be forced, the latch E requires withdrawal before the lower sash may be
raised. The latch when so withdrawn, closes the electric circuit hereinbefore
referred to, whereby the alarm is immediately sounded, and the operation of the
latch indicated.
When the bolt D¹ of the lock is shot back, the bolt F may be disengaged from
the plate G, and when the latch is operated, the sashes may be raised and lowered,
as is evident.
The latch E enters between the divisions of the plate H, and thus adapts the
sash to be held at various heights without liability to be raised or lowered, except
by proper withdrawal of the latch, and the employment of a sash without sash
cords and weights.
Having now particularly described and ascertained the nature of the said
invention, 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 :-
First. A sash fastener and lock having a sliding bolt, and a lock arranged
substantially as described, the bolt of the lock being adapted to be projected across
the path of the sliding bolt, in the manner and for the purpose set forth.
Second. A sash fastener and alarm consisting of a latch and a plate with which
said latch is adapted to engage, and a finger which is in electrical communication
with a bell, the latch being adapted to come in contact with said finger, sub-
stantially as described.
Third. A lock, bolt and latch connected with a window frame, the lock being
adapted to control the bolt, plates connected with the upper and lower sashes for
the engagement of said bolt and latch, and a bell in electrical communication
with said latch when the latter is withdrawn, the parts being combined and
operating substantially as described.
Fourth. A bolt connected with a sasb, and a keeper or plate therefor secured to
the other sash, in combination with a guard hinged to said plate adapted to be.
projected over the vertical path of said bolt, substantially as described.
Dated this 19th dose of Taste 1000