PURPOSE:To improve heat exchange efficiency, by providing a spacer, closely attached to the internal peripheral surface of a vessel, in a suitable part in the vessel and dividing a heat regenerative material in the vessel into a suitable number of parts by said spacer, in the case of a regenerative heat exchanger suitable for a stirling engine. CONSTITUTION:A Stirling engine provides an expansion ...

Differential amplifier having reduced static and cross modulation errors. The amplifier includes first and second pairs of transistors, the emitters of each pair being connected to first and second current sources, respectively. A first additional transistor is connected at its emitter to the base of one transistor from each pair and at its base to the collector of one transistor from the first pa...

Binocular apparatus for transmitting an image of a single information source (1) to each eye (12, 13) of an observer comprises a support (e.g. a helmet) (4) to be worn on the observer's head, combiner means (5) positioned on the support in the fed of view of both the observer's eyes, an information source (1) providing a collimated supply of information and mounted behind the observer to transmit ...

A system is disclosed for sealing a metal foil membrane on the end of a container such as a composite container using a rotating turret having a plurality of spindles in it with non-metal rotating heads on the spindles for pressing a closure and foil membrane against the container sealing surface and rotating the container-closure assemblies about the axis of the container as they are moved throug...

A microturbulence generator (8) for a papermachine headbox flow channel (1) complying with newly developed parametric criteria for optimizing its effectiveness and methods of adjusting the position of said microturbulence generator while said papermachine is in-use to accommodate changes in operating conditions and/or machine speed are disclosed. A microturbulence generator complying with the opti...

A breast box nozzle for a paper making machine or the like is shown as having an adjustably positionable shutter member which can be moved generally further and lesser into the path of flow of a stream of pulp stock as to thereby determine the thickness of the discharged stream of pulp stock. A support arrangement applies a pressure to the shutter member as against a downstream side thereof in ord...

PCT No. PCT/SE87/00105 Sec. 371 Date Oct. 28, 1987 Sec. 102(e) Date Oct. 28, 1987 PCT Filed Mar. 4, 1986 PCT Pub. No. WO87/05354 PCT Pub. Date Sep. 11, 1987.A tombstone intended to be anchored upright in or on a foundation includes an inscription plate (13) attached as front side in a casing (1) and a foot (7) connected to the casing (1). It is intended to achieve a tombstone having a long life an...

A rotating gas diffuser for shearing fine gas bubbles from the surface thereof when the diffuser is immersed in a body of liquid and rotated therein. The rotatable shaft of the diffuser carries a disk like member defining at least one gas plenum having a porous wall out of which gas introduced into the plenum can pass to form nascent gas bubbles which are then sheared off by the viscous shear forc...

The invention relates to a turbocharger for an internal combustion engine, which has a turbine of variable capacity. The turbine contains a worm section, the interior space of which is divided by a partition wall (5) into two worm chambers (4a, 4b). In the lower engine operating speed range, in which the speed of flow of the exhaust gases is low, these are led concentrated through only one worm ch...

A composite material comprising at least two layer materials joined together along substantially parallel seams at a distance from one another and a swellable material which fills the channels between the seams, in which composite material at least one of the layer materials consists of elastic material with recovery capacity and, because of the greater tensile stressing of this material with resp...