Abstract: A system for safe transmission of a message with positive identification of the sender includes on the transmitter side telefax-type message-transmitting apparatus (10) and encryption means (22) for encrypting transmission signals from the telefax apparatus prior to transmission, and includes on the receiver side decryption means (25) for decrypting incoming signals prior to their receipt in telefax-type apparatus (20), and message enveloping and message gathering means (21) for safe storage of messages received by the telefax apparatus (20) in an enveloped form within a closed casing (11). Activating means (23) on the transmitter side includes a card reader (231) and keyboard (232) and is intended to activate the encryption means (22) in response to signals from the card reader (231) and the keyboard (232). Control means (24) on the receiver side function are adapted to activate the decryption means (25) in response to signals emanating from the card reader (231) and the keyboard (232).

Abstract: An arrangement for enveloping an object located between two heat weldable webs of enveloping material includes two coacting welding jaws for joining the webs together in their transversal direction on mutually opposite sides of the object. The welding jaws extend in the transverse direction of the webs, across the whole width thereof. One of the jaws is a wire-carrying jaw which supports a freely extending heating wire, and the other jaw is forked and has two legs. The jaws are moveable between a starting position on opposite sides of the webs, and a web welding position in which the webs are held together with the free ends of the fork legs in abutment with one side of the webs and with the heating wire located at the mouth region of the fork gap and in abutment with the other side of the webs. The wire functions to weld said material webs together and to melt-off the webs within the weld region.