Abstract: A sorption device for heating and cooling gas streams, with a sorbent container which contains a sorbent that takes up a working fluid which evaporates in an evaporator that contains a quantity of working fluid in correspondence with the quantity of sorbent, with a sorbent heat exchanger which exchanges the heat between a sorbent and a sorbent gas stream, with a working fluid heat exchanger which exchanges the heat between working fluid, and with a working fluid gas stream, and a closable valve between the sorbent container and the evaporator, which valve is able to interrupt the flow of the working fluid vapor, with both the sorbent heat exchanger and the working fluid heat exchanger having at their inlets and outlets connecting elements which can be readily attached to, detached from, and exchanged for one another on the gas flow channels for supplying and discharging gas streams that are to be heated or cooled.

Abstract: A sorption device for heating and cooling gas streams, with a sorbent container which contains a sorbent that takes up a working fluid which evaporates in an evaporator that contains a quantity of working fluid in correspondence with the quantity of sorbent, with a sorbent heat exchanger which exchanges the heat between a sorbent and a sorbent gas stream, with a working fluid heat exchanger which exchanges the heat between working fluid, and with a working fluid gas stream, and a closable valve between the sorbent container and the evaporator, which valve is able to interrupt the flow of the working fluid vapor, with both the sorbent heat exchanger and the working fluid heat exchanger having at their inlets and outlets connecting elements which can be readily attached to, detached from, and exchanged for one another on the gas flow channels for supplying and discharging gas streams that are to be heated or cooled.

Abstract: A fountain pen is provided with a tubular barrel, and ink guide with a nib on its front end and a cartridge on its rear end. The ink guide is mounted so that it is substantially linearly movable not only between a writing position in which the tip of the nib projects out of the front end of the barrel, and a storage position in which the nib is retracted within the barrel, but also a replacement position in which the rear end of the cartridge projects out of the open rear end of the barrel so that the cartridge can be readily grasped for replacement. A cover cap may be provided with an axially extending support pin having a free end which engages a pivotal closure cap to prevent it from opening the rear end of the barrel as a result of pressure exerted by the ink cartridge. The free end of the support pin also engages the ink guide, when the pen is in the writing position and the cover cap surrounds the front end of the barrel, to insure that the tip of the nib is spaced from all portions of the cover cap.

Abstract: A thermal transfer ribbon consisting of a color-transfer layer on a foil or film substrate band is provided with a wax coating which appears to facilitate transfer with high resolution even to rough papers.