Abstract: Cremone-bolt door-locking controlled by rack-and-pinion means. The cremone-bolt rod is connected to a first rack support that is slidably mounted inside a housing that houses a second slidably mounted rack support, each rack support carrying a rack segment in engagement with a pinion, at least one rack segment being hinged to its own rack support and being provided with a set of teeth that is extended over a curved portion of its end.

Abstract: The invention provides a showcase having at least two glass doors, a first door being fastened to a front ferrule and a second door being fastened to a rear ferrule, each of the ferrules moving along a respective rail, said locking device comprising a lock for locking the two doors together, wherein the showcase includes a locking device comprising a slider mounted to move in said front ferrule transversely relative thereto, and having a rotor of the lock installed thereon, wherein said rear ferrule includes an opening that comes into line with said rotor in a position for locking the two doors together, and that is suitable for receiving a bolt mounted at the end of said rotor, and wherein said slider includes a relatively flat face plate coming substantially flush with said ferrule in the locked position of said doors.

Abstract: Cremone-bolt door-locking controlled by rack-and-pinion means. The cremone-bolt rod is connected to a first rack support that is slidably mounted inside a housing that houses a second slidably mounted rack support, each rack support carrying a rack segment in engagement with a pinion, at least one rack segment being hinged to its own rack support and being provided with a set of teeth that is extended over a curved portion of its end.

Abstract: In information handling systems, syndrome and correction codes adapted for error signalling and correcting operations are obtained by processing words each made of a definite number of bytes, each byte having a same number of bits and one of the bytes being comprised of the parity incoming bits of the other bytes. An error syndrome and correction code forming device is described which comprises first and second stages of modulo-2 adders (i.e. exclusive-OR circuits), the number of adders in the second stage being equal to the number of bits in the required code, wherein the adders of the first stage form the parity check bits of the bytes and further bits from selective combinations of bits in the word and wherein the bits outputting the adders of the first stage are distributed, together with further bits of the word, to the inputs of the adders of the second stage.