SASH AND CASEMENT FASTENINGS
Year: 1884

page_text: WALTER MACOITIE Wylde Green Near Birmingham in the County of Warwick
Brassfounder do bereby declare the nature of my invention for SASH AND CASEMENT
FASTENINGS to be as follows:--
My Invention consists in constructing and arranging in the manner hereinafter
described the parts of sash fastenings and casement fastenings, I will describe my
Improvements as applied to a sash fastening. The object of my Invention is to
produce a simple and efficient self locking fastening, and so to arrange the locking
parts that while they are capable of being easily released for opening the window,
they cannot be acted upon by a knife or instrument inserted between the sashes
from the outside of the window. In constructing a sash Fastening according to
my Invention I make that part of the fastening attached to the meeting rail of the
upper sash of a jointed arm, the eye end of the said arm turning upon a peg or
axis fixed to the foundation plate. By means of a coiled spring attached at one
end to the peg or axis, and at the other end to the eye of the arm, the said arm
when at liberty to move springs into its unfastening positition, that is lies parallel
with the meeting rail to which it is attached. A stop limits the backmotion of the
jointed arm. Near the handle end of the jointed arm is a cross slot open at one
end. The jointed arm is made hollow on the meeting rail of the upper sash on the
meeting rail of the lower sash I fix a plate simular to the plate on the upper sash
to which I fix a hollow peg with large circular head in the centre of the said
circular head. I fix a solid peg inside of the hollow peg that comes through the
circular head and forms a thumb piece for pressing down, under neath the plate.
I fix a steel spring with a projecting tooth or catch with one incline face which
springs up through the face of the plate, when the jointed arm of the fastening is
made to cross the meeting rail and pushed home for fastening the sashes the spring
with the tooth springs into the hollow part of the jointed arm and thereby securely
fastens the said arm by pressing downwards upon the pin in the centre of the
circular head it presses the spring down from under neath the plate, which release
or unlocks the arm which flies back into its unfastening positition.
The improvements described with respect to sash Fastening or appliable to
casement fastenings.

page_text: I WALTER MACOITIE Wylde Green N Birmingham in the County of Warwick
Brassfounder do hereby declare the nature of my invention for SASH AND CASEMENT
FASTENINGS 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 in constructing and arranging in the manner herinafter
described the parts of sash fastenings and casement fastenings, I will describe my
improvements as applied to a sash fastening. The object of my invention is to
produce a simple and efficient self locking fastening, and so to arrange the locking
parts that while they are capable of being easily released for opening the window
they cannot be acted upon by a knife or instrument inserted between the sashes
from the outside of the window, In constructing a sash fastening according to my
Invention I make that part of the fastening attached to the meeting rail of the
upper sash of a jointed arm, the eye end of the said arm turning upon a peg or
axis fixed to the foundation plate. By means of a coiled spring attached at one
end to the peg or axis, and at the other end to the eye of the arm the said arm
when at liberty to move springs into its unfastening position that is lies parallel
with the meeting rail to which it is attached. A stop limits the back motion of
the jointed arm. Near the handle end of the jointed arm is a cross slot open at one
end, the jointed arm is made hollow on the meeting rail of the upper sash. I fix
a plate on the meeting rail of the lower sash simular to the plate on the upper sash
to which I fix a hollow peg with large circular head in the centre of the said
circular head, I fix a solid peg inside of the hollow peg that comes through the
circular head and forms a thumb piece for pressing down underneath the plate,
I fix a steel spring with a projecting tooth or catch with one incline face which
springs up through the face of the plate, when the jointed arm of the fastening is
made to cross the meeting rail and pushed home for fastening the sashes the spring
with the tooth springs into the hollow part of the jointed arm and thereby securely
fastens the said arm by pressing downwards upon the pin in the centre of the
circular head it presses the spring down from underneath the plate, which release
or unlocks the arm which flies back into its unfastening position. The improve-
ments described with respect to sash fastenings or appliable to Casement
Fastenings.
I will now proceed to describe with reference to the accompanying drawings the
manner in which my Invention is to be performed.
Figure 1 represents in plan a horizontal sash fastening in its locking position.
Figure 2 represents in plan a horizontal sash fastening in its unlocked position.
Figure 3. represents in plan a horizontal section of my sash fastening in its
locking or fastening position represents the coiled spring on the back foundation
plate on the front plate the dotted line represents the spring tooth or catch.
Figure 4. represents vertical section of my Invention in its fastening position.
The same letters of reference indicate the same parts in figures 1. 2. 3. 4.
A is the back sash. B is the front sash C is the front foundation plate D is
the back foundation plate E circular head on plate C with a round hole through
the centre with a shoulder to form a stop when pressed down peg. F a round
peg, the upper end forms a thumb bit that works through the hollow circular head E
the lower end of peg. F is rivetted to spring G. G spring rivetted to the left
hand end to foundation plate C the right hand of spring G is formed with a square
shoulder on the inside the outer part is formed with an incline face which forms
the tooth that engages into hollow arm I H forms the rivett to spring G I jointed

page_text: hollow arm in its locking position dotted line shews spring G pressed down into its
unlocking position as represented in figure 4 which allows the arm I to fly back
into its unlocking position stop K limits the back motion of arm I as represented
in figure 2 J is the coiled spring fixed into the eye end of the jointed arm I in
the ordinary way, represented in figure 3.
The fastening described and represented may be used as a casement fastening
by fixing the two parts vertically upon the meeting rails or bars of the casements
the action of the parts being the same as when applied to the fastening of a sash.
Having now particularly described and asertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1st In combination with a sash or casement fastener a spring G with a tooth or
catch to engage with the hollow arm I substantially as herein before described.
2nd The pin F rivetted to spring G and forming a thumb piece to press down
the spring and so disengage the tooth or catch from the hollow arm I substantially
as hereinbefore described.
3rd The hollow pivoted arm I in combination with the coiled spring J substan-
tially as and for the purpose herein before described.