Abstract: In a method for recording a new coded message in place of an old coded message recorded on a magnetic stripe carried by a support document by manual displacement of said document, the message being divided into a first part and a second part separated by a gap, the clock signal used to write the first part of the new message is a clock signal obtained by reading the second part of the old message. The clock signal used to write the second part of the new message is a clock signal obtained by reading the first part of the new message, newly written. The system for implementing this method comprises a write head between two synchronization heads and an electronic circuit which produces from the signals from the two synchronization heads a clock signal slaved to the speed of displacement of the support document. This clock signal is sent to a write signal generator connected to the write head. The write signal generator also receives the data to be recorded.

Abstract: A system for reading and encoding a magnetic track (2) carried by a supporting document (1) which is displaced manually past read and write members, the magnetic track comprising a first portion (3) on which a fixed first encoded message characteristic of the supporting document is recorded, said message being encoded by means of an encoding system which conveys its own clock signal, the first portion of the track being followed by a second portion (6) in which a variable second encoded message is written each time the supporting document goes past said read and write members, wherein the read and write members comprise three magnetic heads in alignment, comprising a first head (9) which is a read head, a second head (10) which is a write head, and a third head (11) which is a read head, the write head (10) being connected to a write signal generator (12) having a first input (13) which receives data representative of said variable message to be recorded on said second portion of the magnetic track, and a sec

Abstract: A coin recognizing selector (3) is followed by a buffer coin box (5) serving as a temporary store for newly inserted coins. The buffer has a stepping motor-indexable, bottomless and topless, circular loading magazine with P+2 radial cells bounded by radial walls, within a stationary cartridge. The cartridge has a bottom opening two magazine cells wide, equipped with a bolt (36) operable to either close off the opening completely or close off either its right or left side. N identical coin stores (6 to 11) are arranged coaxially one below the other to make change, are supplied from the buffer (5) and feed either a coin collection box (12) or a coin return tray (4) arranged in parallel beneath the storage decks. The bolts (36) are controlled to release coins from the stores to the coin box (12) or return tray (4), or from the buffer (5) to one of the stores (6 to 11), each store being assigned coins of a specific denomination.