This invention relates to a device for maintaining a detonator and its associated firing connection in position relative to an explosive charge while the latter is inserted into a previously prepared hole during blasting operations. The device comprises an elongated member divided into two arms by a generally right-angled bend, the free end of one arm having a spike extending substantially parallel to the other arm which has at its free end a clip adapted to frictionally engage a fuse or detonat...

The present invention is a system architecture and methods of operation which reaps all the advantages of patch access processing while allowing many important types of image manipulation to be performed to the granularity and addressability of a single pixel. It goes beyond conventional concepts of the limits of pixel granularity by manipulating pixel data across and within bit planes in a manner which enables bit positions to be exchanged within the same pixel and/or swapped between different ...

An operations processor for facilitating memory of the 12 times table. The operations processor comprises two concentric cylinders, the inner cylinder having marked thereon a periodical array of numbers. The outer clinder arranged for indicating one of the operands and the solution to a particular multiplication. A user merely twists and raises or lowers the inner cylinder with respect to the outer cylinder thereby displaying any sum of the 12 times table.

Operation system with a gas and/or liquid pump, to which is connected at least one flexible-tubing line and which includes at least one control device controlling the flow-through quantity of the gas and/or the liquid in the flexible-tubing line, is proposed. In addition, an operator's control unit with actuating elements is provided, which is joined to the control device by means of a control line and with which the flow-through quantity can be adjusted. Control line (24) and actuating elements...

The disclosed embodiments relate to a communication device for use in a node of a system having a plurality of nodes. Each of the plurality of nodes may include network interface controllers ("NICs") and each of the NICs may have an atomic operation logic device therewith. The atomic operation logic may receive from a requester a packet that contains a request to perform an atomic operation. Then the atomic operation logic may determine that the atomic operation is being requested from the infor...

A method of forming to shape an initially annular workpiece in which the workpiece is rotated and squeezed between a pair of opposed forming rolls at least one of which is advanced relatively towards another. A pair of opposed growth control rolls are situated at right angles to the forming rolls, contacting the outer surface of the workpiece during at least a part of the rolling by the forming rolls. When the forming rolls have advanced to a predetermined depth of roll the force exerted by the ...

A method of rolling an initially annular workpiece between forming rolls in which after the forming rolls have been fully advanced they are retracted initially slowly for a predetermined distance. The forming rolls can then be further retracted at a greater speed. The slow retraction reduces the out of roundness of the finished rolled ring.

A method for milling an opening in a tubular in a wellbore, the method comprising installing a mill guide in the tubular at a desired milling location, inserting milling apparatus through the tubular and through the mill guide so that the milling apparatus contacts the tubular at the desired milling location and contacts and is directed toward the tubular by the mill guide, and milling an opening in the tubular. In one aspect the method includes installing a whipstock in the tubular and disposin...

Method and apparatus for providing tubing pack off for well operations and includes a pair of spaced apart stripper rubbers for packing off tubing in a tubular stripper assembly and which form an annular chamber between the tubular stripper assembly and the tubing. Ports are provided in the stripper assembly for use in flowing coolant into such chamber to prevent thermal damage to the stripper rubbers. A thermal pack off means is provided to cooperate with the above described stripper assembly t...

A magnetics operation monitor employing a sensor adapted to sense the presence of a changing electromagnetic field for producing an electrical signal. The electrical signal is coupled to an adapter unit which provides a triggering pulse to a driver, which in turn provides a fixed duration pulse. The fixed duration pulse is coupled to a gating unit which in turn couples a recording signal source for the duration of the gating signal to a transcription device such as a tape recorder or the like.