A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to the throttle orifice to modulate the mud pressure for the purpose of transmitting measurement data up the drill string, and a turbogenerator. The turbogenerator incorporates an annular impel...

The present invention relates to generating a hot gas consisting primarily of CO and H2 from a carbonaceous starting material which, in pulverulent form, together with oxidizing agent and optionally also a slag-former, is introduced into a gasification chamber, where it is combusted and partially gasified. The resultant gas mixture is then introduced into a shaft containing a bed of solid carbonac...

The present invention relates to generating a hot gas consisting primarily of CO and H2 from a carbonaceous starting material which, in pulverulent form, together with oxidizing agent and optionally also a slag-former, is introduced into a gasification chamber, where it is combusted and partially gasified. The resultant gas mixture is then introduced into a shaft containing a bed of solid carbonac...

The present invention relates to a means and method for partially combusting and gasifying carbonaceous material in which a hot plasma gas flow containing oxidizing agent is generated in a plasma generator and introduced into a reaction chamber, the pulverulent carbonaceous material being introduced concentrically around said hot gas flow with the aid of a transport gas.

The present invention relates to a means and method for partially combusting and gasifying carbonaceous material in which a hot plasma gas flow containing oxidizing agent is generated in a plasma generator and introduced into a reaction chamber, the pulverulent carbonaceous material being introduced concentrically around said hot gas flow with the aid of a transport gas.

Low density ethylenic polymer foam planks having density of from about 0.8 to about 1.9 pounds per cubic foot, dimensional stability, substantially closed-cell structure, a cross-sectional area of at least six square inches and a minimum cross-sectional dimension of at least 0.5 inch. Such foam planks are made from ethylenic polymers by release to lower pressure of flowable, foamable gel under pre...

A combined endoscope and ultrasonic diagnostic device for the examination of a body cavity interior, an ultrasonic probe tip (23) being mounted to be inserted directly into a body cavity and transmit and receive ultrasonic waves to diagnose an internal organ or the like within the body cavity with the aid of an endoscope (27) contained in a housing forming an insertion sheath (21) and inserted int...

The invention relates to DNA sequences which code for the amino-acid sequence of the thrombin inhibitor hirudin, to hybrid vectors containing such DNA sequences, to host cells transformed with such hybrid vectors, to polypeptides produced by such transformed host cells and having thrombin inhibitory activity, to processes for preparing these DNA sequences, hybrid vectors and transformed host cells...

The invention relates to DNA sequences which code for the amino-acid sequence of the thrombin inhibitor hirudin, to hybrid vectors containing such DNA sequences, to host cells transformed with such hybrid vectors, to polypeptides produced by such transformed host cells and having thrombin inhibitory activity, to processes for preparing these DNA sequences, hybrid vectors and transformed host cells...

A safety-container is removably mounted at an elongated frame member of a two-wheeler and includes closeable locking means so that the container can be neither opened after locking nor removed from the frame member. The mounting means for the safety-container at the frame member are inaccessible from the outside when the container is mounted at the frame member. The mounting means include especial...

Apparatus for stacking and collecting labels includes a suction drum for continuously feeding at least one stream of individual labels to a movable support assembly. The movable support assembly supports a respective stack of labels corresponding to the or each stream fed thereto by the suction drum. A fixed support assembly is provided for receiving the or each stack of labels from the movable su...

A corner bracket for freight containers, in particular for small containers, has an edge hole (15) at each edge in addition to a corner opening (14). This corner bracket can be used universally for all eight corners of a container. Crane hooks, lashing and coupling elements can be introduced in a simple manner through the corner opening (14) and one of the edge holes (15), the tensile stress actin...

An oscillating pedal type bicycle (Figure 32) is provided with a pedal lever having a front pedal supporting portion (482) and a rear power transmitting portion (484) which are rigidly connected together and which make an oblique angle with respect to one another, with the apex of the oblique angle pointing downwardly and to the rear in the intermediate position of the pedal levers. The two pedal ...

A fluid flow regulator wherein a shaft which extends transversely of the passage in a tubular housing carries a flap having two mutually inclined sections. A spring biases the flap to a fully open position and the flap is moved from such open position toward a fully closed position by the fluid which flows through the passage in a direction from the one toward the other axial end of the housing. A...