2. Window stoppers
So far I have observed I found about 4 types
of window stoppers. Every stopper had been
succeeded by other only if it has got some
advantages like easiness of
operation, appearance, material saving.
3. Hinged door stoppers
These were the earliest
stoppers that were
used to prevent
windows from shutting
down
Usually made of wood
Were in their place for
a long period
Cheap and best
Easy to manufacture
4. Hinged door stoppers
When acquires right
design, most reliable
stopper
Only disadvantage
with this is door would
be widely opened and
can’t be optimized for
required angle of door
5. Brass hooks
These made their advent in recent past
Looks shiny… acts as decorative too
Drawback of wooden hinge is overcome by this one
By deciding the best angle that would be useful for
us, we have to fix the hook onto window frame and
its socket onto window door
6. Brass hooks: drawbacks
An optimized angle but can’t be changed as and
when needed
Socket meant for fixing hook became delicate
because of its shape
7. Brass screw and socket
This is a small addition to what
had been done on brass hook
stopper
Here we have a screw fixed
onto lever, that is fixed on to
door
And now instead of sockets,
here we use a slender bar that
has hole drilled in at regular
distances. In general 3 to 4 hole
for a window
8. Brass screw and socket
This provides greater
choice in terms of
angle of door required
Design drawback of
socket in last stopper is
overcome
The only drawback is
that because of fierce
winds screw may come
out of its sockets
9. Multi lever and track
This is significant improvement in
design and working way
It has a track on which follower
slides to any required spot
And a network of levers which let a
controlled movement to the doors
of windows
This has overcome all the
drawbacks of above stoppers
But a little more expensive than the
old ones