Improvements in Sash Fasteners.
Year: 1889

page_text: Date of Application, 31st July, 1889
Complete Specification Left, 30th Apr., 1890-Accepted, 14th June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Sash Fasteners.
We, JOSEPH WILLIAM WILLCOOKS, of 14, St. Mary Street, Ironmonger, and JOHN
HARRISON, of Wharf Road, Engineer, both in Stamford, in the county of Lincoln,
do hereby declare the nature of this invention to be as follows:-
:-
Our invention relates to sash fasteners and has for its object to provide an improved
fastener which will automatically lock itself on the sashes being closed.
According to our invention wo provide an arm which is pivotted on a horizontal
axis to one of the sashes and adapted to engage with a horn or horns on the other
part of the sash. To the end of the pivotted arm is connected a catch, the free end
of which is adapted to engage with the horn, so that if the arm has been moved into
engagement with the horn, it cannot be disengaged until the catch is moved out of
engagement with the horn.
In order to open the sashes the arm is thrown back and a lug thereon is adapted to
project into the path of a pivotted tappet, arranged in conjunction with the horn,
which tappet when the sashes are nearly closed engages with the said lug to throw
the arm down into its locking position.
In a modification of our invention the arm is pivotted to the horn instead of to
separate lugs.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
-
COMPLETE SPECIFICATION.
Improvements in Sash Fasteners.
We, JOSEPH WILLIAM WILLCOCKS, of 14, St. Mary Street, Ironmonger, and JOHN
HARRISON, of Wharf Road, Engineer, both in Stamford, in the county of Lincoln, 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 state-
ment-
Our invention relates to sash-fasteners and has for its object to provide an improved
fastener which will automatically lock itself on the sashes being closed.
According to our invention we provide an arm which is pivotted on a horizontal
axis to one of the sashes and adapted to engage with a horn or horns on the other
part of the sash. To the end of the pivotted arm is connected a catch, the free end
of which is adapted to engage with the horn so that, if the arm has been moved into
engagement with the horn, it cannot be disengaged until the catch is moved out of
engagement with the horn."
In order to open the sashes the arm is thrown back and a lug thereon is adapted to
project into the path of a pivotted tappet arranged in conjunction with the horn,
which tappet when the sashes are being closed engages with the said lug to throw the
arm down into its locking position.
In a modification of our invention the arm is pivotted to the horn instead of to
separate lugs.
To enable our invention to be fully understood we will describe the same with
reference to the accompanying drawing, in which
Figure 1 is a plan view of a sash-fastener constructed according to our invention,
and
Figure 2 is a plan view of the same, the said fastener being represented as applied
to the meeting rails of a pair of window-sashes.
DQ1

page_text: Figure 3 is a view illustrating a slight modification.
Figures 4 and 5 are views similar to Figures 1 and 2 respectively illustrating a
modified form of fastener; and
Figures 6 and 7 are similar views illustrating another modification.
Similar letters of reference indicate corresponding parts throughout the drawing.
a, a¹ are the meeting rails of the upper and lower sashes respectively; b is the
pivotted arm carried on the horizontal axis c supported on the bracket or lugs d; e is
the catch pivotted to the free end of the arm 6, and f is the horn with which the said
catch is adapted to engage. is the tappet for returning the arm to its locked position
when the sashes are closed.
As shown in Figures 1 and 2 the arm is made solid, and the horn f is bifurcated
so as to receive the arm in the bifurcation. The side of the horn with which the
catch engages is notched and made of a curved or inclined shape so that the-catch
will hold the meeting rails close together to prevent them from rattling.
When the sashes are closed the parts are in the position shewn in full lines in
Figure 2, the arm & projecting over the meeting rail of the sash a¹.
In order to unlock the sashes the catch e is turned out of engagement with the horn,
as indicated by the dot and dash lines e¹, figure 2, so that the arm b can be thrown
back to the position indicated by the dot and dash lines b', figure 2, where-it-is out of
the path of the meeting rail a¹.
To prevent the arm binadvertently falling into the locking position I provide a
spring secured to the plate upon which the bracket d is formed with which spring.a
lug or projection i formed integral with the arm is designed to engage when the
said arm is thrown back as shown.
This arm is also provided with a projection k which projects into the path of the
tappet g, and which, when one sash is moved relatively to the other for closing the
window, is struck by the end of the tappet g thereby throwing the said arm down into
its locking position as shown in figure 2. The tappet g is pivotted to the horn so
that, during the opening of the window, it will swing back as it strikes the underside
of the projection k.
We sometimes provide the catch e with an extension 1, as shown in Figure 3,
designed to serve as a handle for moving the said catch when unlocking the fastener.
In the modification of our invention shown in figures 4 and 5, the arm b is slotted
so as to pass over the horn f which is solid, and the catch e is provided with lugs or
projections e✶ at the sides in order to prevent it from falling through the slot in the
arm b. The tappet also, instead of being pivotted to the horn as herein before described,
is in the form of a projection on the base plate of the horn. In order to allow this
tappet to pass the projection k upon the arm b, the pivot of the latter is designed to
move in a slot d formed in the bracket d when the said tappet strikes against-the
underside of the said projection k.
In the modification of my invention shown in figures 6 and 7 the arm b is slotted as
in the modification last described, but the horn f instead of being attached to the
meeting rail a' is formed integral with the bracket d. The catch e is made of sufficient
length to engage with the said horn as shown. In this modification the arrangement
of the tappet g is similar to that shown in Figure 2, except that, instead of being
pivotted to the horn f, it is pivotted in a separate block m arranged beneath the arm b.
This block serves as an abutment against which a wedge-shaped projection 6* upon
the arm b acts, to draw the sashes together when the arm 6 is moved down to the
locking' position.
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.) In a sash fastener, the combination of a pivotted arm, a catch pivotted to the
end of the said arm, and a horn with which the said catch is adapted to engage,
substantially as described.
(2.) In a sash fastener, the combination of a pivotted arm adapted to be secured to

page_text: one meeting rail of a window-sash, and a horn adapted to be fixed upon the other
meeting rail of the sash, a pivotted catch being connected to the said arm and designed
to engage with the horn, substantially as described.
(3.) In a sash fastener, the combination of a pivotted arm, a catch pivotted to the
said arm and a horn with which the said catch is adapted to engage, the said horn
being formed upon or attached to the bracket to which the arm is pivotted, sub-
stantially as described.
(4.) The combination with a sash fastener having a pivotted arm, a pivotted catch,
and a horn arranged substantially as described, of a tappet arranged to automatically
move the said arm and catch into their locking position, as set forth.
(5.) The manufacture and use of sash fasteners substantially as herein before
described and illustrated in figures 1 and 2, 4 and 5, and 6 and 7 of the accompanying
drawing.
Dated the 30th day of April 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.