Improvements in Sash Fasteners for Windows.
Year: 1898

page_text: Date of Application., 8th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners for Windows.
I, EWBANK HARRISON, of 4, High Row, Darlington, in the County of Durham,
Jeweller, do hereby declare the nature of this invention to be as follows:-
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My invention relates to improvements in sash fasteners for windows, which
consists of absolute security by means of a spring bolt with a front under lock
and a central plate being over the division between the two window sashes prevents
the use of a knife or other like instrument to come into contact with the bolt.
In carrying my invention into practice I construct a block mounted on a plate
with screw holes, the said block is provided with a bolt hole or socket in the front,
and at the sides I pivot a lever arm or fastener. The lever arm or fastener works
on the pivot up or down. Inside the lever arm or fastener I construct a spring bolt
and when the arm is pulled down to fasten a window the end of the bolt shoots
into the hole or socket in the block above described in order to rigidly lock the
apparatus. Under the lever arm is a plate which falls over the division of the
sashes. On the opposite sash I provide a plate having screw holes and a catch to
engage with a projection of the pull out plate at the front of the spring bolt. The
bolt is operated by a pull or knob for the purpose of releasing the end of the
bolt from the block when it is required to raise the lever arm or fastener.
Dated this 8th day of July 1898.
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.
T. EWBANK HARRISON, of 4, High Row, Darlington, in the County of Durham,
Jeweller, 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 relates to improvements in sash fasteners for windows, which
consists of absolute security by means of a spring bolt and pivoted lever with a
front under lock for preventing the use of a knife or other like instrument to come
into contact with the bolt.
And in order that my invention may be thoroughly understood, I now proceed
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.

page_text: Fig. 1, is a plan of the top of the fastener.
Fig. 2, is a side view with a part in section showing the interior mechanism of
the bolt or locking apparatus situated in the lever. The position of the lever when
raised is shown in dotted lines.
Fig. 3, is a side elevation.
Fig's. 4, and 5, are end views.
Fig. 6, is a front view of the block with bolt hole and the lever raised; part of
this figure is broken off.
Fig. 7, is a side and front view of the washer.
In carrying my invention into practice I construct a block a mounted on a
plate 6 with screw holes, the said block a is provided with a bolt hole c or socket
in the front, and at the sides I pivot a lever arm d or fastener. The lever arm
or fastener works on the pivot e up or down. Inside the lever arm d or fastener
I construct a spring bolt f and when the arin d is pulled down to fasten a window
the end of the bolt f shoots into the hole c or socket in the block a above described
in order to rigidly lock the apparatus. On the opposite sash I provide a plate g
having screw holes and a catch j to engage with a projection h of the pull out
plate at the front of the spring bolt f. The bolt f is operated by a pull out plate
rivetted thereto for the purpose of releasing the end of the bolt f from the block a
when it is required to raise the lever arm or fastener as in Fig. 2.
The bolt is a straight piece of metal with the two sides k flattened for about
three quarters of an inch. The hole in the body of the lever is enlarged
sufficiently so that a spiral spring m is inserted along with the bolt, this said
spring m is secured by a washer n. The washer has two small grooves o one
on each side which is fixed to the lever d by means of two pins p. The bolt is
also provided with a washer q and pin r at the other end of the spring which
causes the compression of the spring when the bolt is drawn.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is―
1. The sash fastener substantially as above described in the above specification
and illustrated in the accompanying drawing.
2. In sash fasteners, the combination of the lever d hole bolt f spring m
washers and r, projections h catch j plate and the pull out plate i, substantially
as herein described and according to the accompanying drawing.
3. In sash fasteners, the combination of the plate b block a bolt hole c and
pivot e, substantially as herein described and according to the accompanying drawing.
Dated this 18th day of November 1898.
J. P. BAYLY,
18, Fulham Place, London, W., Agent for the Applicant.