Improvements in Window Fasteners.
Year: 1896

page_text: Date of Application, 15th May, 1896
Complete Specification Left, 15th Feb., 1897--Accepted, 20th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in Window Fasteners.
We THOMAS AIREY LANGHORNE of 62 Kirkgate Silsden near Keighley in
the County of York, Tin Plate Worker and JOSHUA TILLOTSON of Skipton Road
Silsden near Keighley in the County of York Contractor do hereby declare the
nature of this invention to be as follows:-
Our invention relates to that class of windows having movable sashes, that is to
say sashes that may be slid up or down, and consists of means whereby said sashes
may be secured in any desired position and also so that they may only be released
again from the side upon which our improved arrangement is fixed. To accomplish
this we make a groove in one side of the sliding sash, said groove extending the
whole length thereof, and in this groove we fix a rack.
To the fixed framework of the window, and in a position about opposite where
the sliding sashes meet, we arrange a suitable lever which we fulcrum by one end,
and to the opposite end of said lever, we fix a suitable pin which projects at right
angles to the said lever. We also make use of a suitable spring which, when
placed in position, comes against the before named lever and presses it, the said
lever, forward causing the pin, fixed at right angles thereto, to engage with the
rack fixed in groove of sliding sash, and by reason of the said rack being fixed to
the sliding sash, and the lever secured to the fixed framework of window, when the
pin fixed to said lever, engages with the teeth of rack, the said sliding sash is
securely held.
Towards the top of lever we hinge a rod which we arrange so as to project
through the wood work of the fixed window frame, and to the outer end of said rod
we attach a push button so that by pressing said button the pin fixed to the lever
is pushed out of contact with the rack thereby allowing the sash to be slid up or
down at will. By this arrangement the movable sashes can only be released from
the inside.
Dated this 13th dor of Mar 1896
THOMAS AIREY LANGHORNE.
JOSHUA TILLOTSON.
COMPLETE SPECIFICATION.
Improvements in Window Fasteners.
We THOMAS AIREY LANGHORNE of 62 Kirkgate Silsden near Keighley in
the County of York Tin Plate Worker and JOSHUA TILLOTSON of Skipton Road
Silsden near Keighley in the County of York Contractor, 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 that class of windows having sliding sashes and

page_text: consists of means whereby said sashes may be secured or locked in any desired
position.
In the accompanying sheet of drawings
Figs. 1, and 2, are front and side elevations showing lever, spring, and push
button arrangement.
Fig. 3 is a perspective view of part of sash with rack attached and Fig. 4 is a
sketch showing lever engaged with rack.
To accomplish our invention we form a groove a in the sash a' and to said
sash a¹ we fix a rack b, said rack being so fixed that its teeth project over the
groove a. To the fixed framework of the window and in a position about opposite
where the sliding sashes meet, we fix the plate c which carries a lever d, said
lever d being fulcrumed at e. Towards the bottom of the lever d we form two
pins f and g.
To the pin g we attach a rod h which passes through the window frame and to
the outer end of which is attached a push button h'.
Upon the plate e is fastened a spring k the outer end of which presses against the
lever d.
When the sash a' is placed in position in the window frame, the pin fenters one
of the openings in the rack b. By pressing the push button h' the pin f can be
pressed out of contact with the rack band by these means the sash a' is released
so that it may be slid up or down.
When the push button h¹ is released the spring k presses the lever d back and
causes the pin f to again engage with the rack b.
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 lever d having the pins f and g, the rod h and the push button h', the
spring k, the sliding sash a¹ having the groove a and the rack b, in combination,
all being arranged in the manner and for the purpose as herein specified and
illustrated by the accompanying drawings.
2. The method and means of securing a sliding sash as herein described and
illustrated.
Dated this 13th day of February 1897.
THOMAS AIREY LANGHORNE.
JOSHUA TILLOTSON.