An Improved Automatic Sash Bolt.
Year: 1890

page_text: Date of Application, 4th Nov., 1890
Complete Specification Left, 4th Aug., 1891-Accepted, 5th Sept.. 1891
PROVISIONAL SPECIFICATION.
An Improved Automatic Sash Bolt.
I, EDWARD CUSACK of Furry Park, Raheny, in the County Dublin, Ireland,
Assistant Engineer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to produce an automatic fastener or bolt, for the
purpose of securing window sashes in a simple and effectual manner.
The invention consists in arranging between the limbs of a suitable bracket, a
bolt surrounded by a spiral spring, and provided at one end with a knob whereby
the bolt can be drawn back a certain distance when required; the other end
projects slightly beyond the face of the bracket for the purpose presently
described.
A falling lever is provided for holding the bolt back when the sashes are being
raised or lowered.
This device is secured to the top rail of the inner sash and on the bottom rail of
the outer sash is secured an angle piece provided with an aperture for the reception
of the projecting end of the aforesaid bolt.
While the sashes are open or partly open the falling lever drops in front of the
free end of the bolt and confines it to the bracket, and when the sashes are closed,
or brought together, the angle piece on the outer sash comes in contact with the
falling lever and tilts it over, thus releasing the bolt which is shot forward by the
force of the spiral spring and enters the aperture in the angle piece, thereby
securing automatically and effectually both sashes.
Dated this 31st day of October 1890.
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.
COMPLETE SPECIFICATION.
An Improved Automatic Sash Bolt.
I, EDWARD CUSACK, of Furry Park, Raheny, in the County Dublin, Ireland,
Assistant Engineer, do hereby declare the nature of this invention and in what
manner the saine is to be performed, to be particularly described and ascertained
in and by the following statement :—
The object of this invention is to produce an automatic fastener or bolt, for the
purpose of securing window sashes in a simple and effectual manner.
The invention consists in the arranging between the limbs of a suitable bracket,
a bolt surrounded by a spiral spring, and provided at one end with a knob,
whereby the bolt can be drawn back a certain distance when required; the other
end projects slightly beyond the face of the bracket, for the purpose presently
described.
A falling lever is provided for holding the bolt back, when the sashes are being
raised or lowered.
This device is secured to the top rail of the inner sash; and, on the bottom rail
of the outer sash is secured an angle piece, provided with an aperture for the
reception of the projecting end of the aforesaid bolt.
While the sashes are open or partly open, the falling lever drops in front of the
free end of the bolt, and confines it to the bracket, and, when the sashes are closed,
or brought together, the angle piece on the outer sash comes in contact with the
falling lever, and tilts it over, thus releasing the bolt which is shot forward by the
CD C

page_text: force of the spiral spring, and enters the aperture in the angle piece, thereby
securing automatically and effectually both sashes.
The accompanying drawings will enable my said invention to be more readily
understood.
Fig. 1,is a-side-view of the apparatus-engaged, attached to the sash frames
Fig. 2, is a similar view (disengaged):
Figs. 3, and 4, are end views (facing each other where sashes meet).
G, is the bolt surrounded with a 'coil spring H, secured at D, D', so as to cause
the bolt to turn when shot into the eye B. On the free end of the bolt is a nose A,
which rises on the incline C, when bolt is engaged, thus drawing the sashes tiglit
together. F is the knob for pulling back the bolt; F, lever which falls over
free end of bolt, when latter is disengaged (Fig. 3); Fi, pivot of same; and
Fnose of same. K, is a lever on angle or eye piece attached to the outside
sash, which tilts up by F, when sash is being raised: K', is pivot of same, L, is
the inner sash, M, the outer sash (Fig. 1).
The action of the apparatus is as follows.
To disengage the bolt (Fig. 1) it is turned to the right, until the nose A, assumes
a horizontal position, when it can be pulled back, whereupon the lever F, falls of
its own weight over the end of bolt, keeping it back. The sashes are then free to
be opened.
of
Upon closing the sashes the lever K, comes in contact with the nose F
lever F, tilting same up so as to free passage for bolt, which is thereupon started
automatically by the spring H, and entering the eye B, it turns round, causing the
nose A to rise on the incline C, and thus draw the sashes tightly together.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed. I declare that what I
claim is.
For the purpose of securing window sashes, the use and application of an auto-
matic bolt, constructed, arranged, and operating substantially in the manner herein
specified and set forth..
Dated this 1st day of A nơust 1801
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.