Other

The State of Israel, Ministry of Defense, Rafael Armament

Ahron Siev

Rami Siev

Daniel Granot

Morel Groper

Avinadav Siev

Freddy Derfler

A contactless window tape alarm interlock device is provided that eliminates the need to manually connect or separate an alarm system and tape strips mounted on panes of glass contained in operable window frames. This prevents breakage of the connections when the window frame positions are shifted for servicing or cleaning. An assembly containing an oscillator, detector and magnetic coupling coils is mounted to each fixed window casement. An electrical tape strip is bonded to each window pane and is connected with a pair of coils contained in an assembly mounted to each moveable window frame. The coil assemblies are located in magnetic proximity to one another. The signal from the oscillator is coupled to the detector via the coils and window tape. Any change in the coupling between coils or a break in any of the strips causes a detector to set off the alarm.

Window tape alarm interlock device

A method and apparatus for feeding sheets, particularly fabrics, from a stack comprises an arrangement for: engaging the opposite edges of the upper sheet of the stack by a pair of restrainer members, bringing a pick-up head into engagement with the upper sheet of the stack while producing air streams from the pick-up head directed outwardly across the opposite edges of the upper sheet of the stack, lowering the pick-up head to depress the stack below the restrainer members whereby the air streams cause the opposite edges of the upper sheet of the stack to curl upwardly to clear the restrainer members, lifting the upper sheet from the stack, and permitting the stack to rise so as to bring the next sheet into engagement with the restrainer members.

Method and apparatus for feeding sheets, particularly fabrics from a

Growing community of inventors

Haifa, Israel

Ahron Siev