IMPROVEMENTS IN SASH FASTENERS
Year: 1884

page_text: JOHN TYLER BARNSLEY BENNETT Manufacturer 60 Anglesey St Aston Juxta
in the County of Warwick do hereby declare the nature of my invention for
IMPROVEMENTS IN SASH FASTENERS to be as follows:-
This invention consists of an arrangement of parts constituting an effectual and
complete window fastener.
In carrying out my invention I proceed in the following manner
I construct a metal frame or plate henceforward called the back plate, this back
plate may be of any suitable dimentions and the bottom part thereof may be three
inches long one inch wide by /, of an inch in thickness more or less, this bottom
plate is provided with holes through which screws can be passed for the purpose of
fastening the plate to the back window sash, On one edge of the said bottom part
at right angles to the same rises an upright or vertical extension of the said back
plate in height width and thickness, about equal to the bottom part, At a con-
venient distance on the vertical part is provided a snug or short projection a second
snug may be provided near the bottom plate leaving a space betwen the two snugs
about three eights of an inch in width more or less, or the bottom plate itself may
be extended upwards to form the second snug.
In addition to the back plate I provide a seperate frame hereinunder further
refered to as the front plate.
The front plate is made in the following manner
An angular shaped plate of a suitable width at the bottom part is pierced in its
vertical side at the centre or thereabouts with a circular countersunk hole which
may be three eights of an inch diameter at the bottom and half an inch diameter
at the top of the countersink (more or less).
A piece is cut out or left out about one fourth of an inch wide extending from
the countersunk hole to the outer right edge in a lateral direction, thus leaving an
opening through the vertical part of the said front plate to the countersunk hole.
A piece of metal or other suitable material is provided henceforward called the
locking bar which is made in the following manner
The locking bar would by preference be round or it may be of any other suitable
shape the back end would in some cases be passed into an opening formed by the
beforementioned snugs or snug and bottom plate and fastened there by means of a
wire or other suitable pivot the said pivot being passed through a pivot hole in the

page_text: snug, thence through a pivot bole in the locking bar, and thence through a pivot
hole in the bottom snug or plate, the back end of the locking bar would also in
some cases be screwed into a ring, the ring having cylindrical shaped projections
forming the pivots to fit in the holes provided in top and bottom snug.
On the front end of the locking bar would in some cases be formed a screw
thread and when so constructed an adjusting knob would be provided to screw
thereon formed in the following manner
A piece of metal or other suitable substance is formed into a convenient shape
which may be nearly spherical, through this piece is pierced a hole tapped to fit
the screw thread on the front end of locking bar, the front end of locking bar is
then screwed through the hole and riveted at the end to prevent it coming out.
A hollow cap composed of metal earthenware or other suitable material is made
in a convenient form, is then fixed on to the spherical shaped piece by the process of
spinning soldering overlapping screwing or other suitable means; the hollow part
of the cap allowing the riveted end of the locking bar to pass up it the required
distance In some cases the adjusting knob is made to slide easily on the locking
bar a spiral spring being provided bearing against the rivet end of locking bar and
also against the spherical shaped piece at the other end.
The complete fastener is fixed in position and used in the following manner.
The locking bar having been passed into the ring in the back plate or pivoted into
the recess formed by the bottom and top snugs and placed in position with its
longitudinal axis parallel with the glass in the sash, the said back plate would
_then be screwed on to bottom rail of the top window sash. The front plate
would then be screwed on to top rail of-the-bottom window sash The locking
bar would then be moved into a position at right angles to the glass in the window
sash, thus crossing the joint of sashes, the front end of locking bar would pass
through the lateral slot in the front plate to the countersunk hole, the adjusting
knob with the tapered or spherical shaped end towards the countersunk hole
would then be rotated round the front end of the locking bar until the spherical
or tapered end interlocked or fitted into the countersunk hole in the front plate,
In some cases the adjusting knob would slide easily on the front end of the locking
bar and be pressed into the interlocking position fitting into the countersunk hole
provided in the front plate by the action of the beforementioned spiral spring. In
other cases the adjusting knob would be a fixture on the locking bar and be drawn
into position in the countersunk hole by simply rotating the bar so that its back
end would screw into the ring pivoted between the top and bottom snugs of
back plate.
Window fasteners made by my improved method cannot be opened from the
outside the adjusting knob fitting into the countersunk hole effectually securing
the locking bar.

page_text: JOHN TYLER BARNSLEY BENNETT, Manufacturer 60 Anglesey St. Aston juxta
(Birmingham) Warwickshire, do hereby declare the nature of my invention for
"IMPROVEMENTS IN SASH FASTENER'S" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
I have found it essentically (when not useing the ordinary sash fastener spring
upon the back plate) to construct a projection upon the back plate of the sash
fastener to keep the locking barr or arm in a safe position, so that, when fixted to
the window fram, it shall not be liable to swing and brake the glass of the window
or the ordinary Bash fastener pivot (mentioned) is usually made by casting a head
upon the iron pivot, I cast the head with projections, without the pivot, but I drill
a hole through each & joine them together by a rivit & cause the head with
its projections to swing up or down & when down, it holds the locking barr or
arm of the sash fastener in a safe position as required and not be liable to swing
and brake the glass of the window-and at the same time the pivot fastens the
locking barr or arm of the sash fastener upon the back plate and causes it to
work as herein before recited and described-Let it be fully understood, I do not
acknowledge any defects in the parts of my "Improvements in sash fasteners "-
at the same time such modifactions in patterns for manufacting purposes, which
may be required I shall adopt and produce them in brass, iron, or any desired
material.
"
In order that my "Improvements in sash fasteners may be fully understood,
I will now, proceed to described the same with reference to the drawings-Fig 1.
Locking Barr or Arm of Sash fastener-A. square thread, B. washer to be rivited
on arm to keep knob from falling off, C bend to rase locking barr or arm, so that
on the other end, the knob shall be free to work upon the square thread, above the
flat of the front and back plates-Fig 2.-The knob which runs upon the end of sash
fastens arm or locking barr-either as within a square thread or spirial spring within
to work upon the locking barr or arm as before herein described Fig 3. pivit and
its head with projections-A, pivit which fastens the locking barr or arm upon
the back plate-B projections to hold arm in position. C. pivot which joines
together the iron pivot & its cast head, also for swing the head & its projections
upon, up or down Fig 4. back plate, A, to keep locking barr or arm in a safe
position, Fig 5. front plate, A. hole to receive the knob.
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
1st I claime the application of a square thread to the arm of a Sash fastener &
corresponding square thread in the neck of the knob to work upon it-Also with
washer and bend as illustrated and described in Fig 1.
2nd I claime the knob as illustrated in Fig 2-and herein-before described.

page_text: 3rd I claimo the pivot with head of the sash fastoner, as illustrated & described,
so as to keep arm in position.
4th I claim the projection on back plate Fig 4. A. or its modifaction for holding
arm of sash fastener safe.
5th I claime the position of the front plate, in a reversed way to drawing in
Fig. 5.