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.
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
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
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
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
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
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
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