Abstract:
An arterial clamp has opposed clamping posts arranged to lie at opposite sides of an artery to clamp the artery between opposed clamping faces of the posts. The posts are carried by a pair of arms pivotally movable one relative to the other to move the posts into clamping relationship with the artery. A ratchet device releasably locks the arms in a selected clamping position. The clamp including posts, arms, and ratchet device is formed as a one-piece plastics moulding.
Abstract:
A method of reducing the entrainment of aqueous mineral acid solutions in organic extractants used in the solvent extraction of metals from the aqueous fluid is disclosed. The method comprises adding an effective, entrainment prevention amount of a water soluble cationic polymer having a molecular weight of from about 10,000 to about 500,000 to a metal rich aqueous mineral acid solution, immediately prior to, or during mixing with a metal poor organic extractant, and then recovering a metal poor aqueous mineral acid phase, and a metal rich organic extractant phase having a reduced level of entrainment of the aqueous mineral acid solution. In a preferred embodiment the metal is copper, and the polymer is poly(diallyldimethylammonium) chloride.
Abstract:
The present invention related to the use of certain cross-linked diallyldimethyl ammonium chloride polymers in water-in-oil emulsion form for use as coagulants in suspensions of inorganic solids. The diallyldimethyl ammonium chloride polymers are preferably polymers of diallyldimethyl ammonium chloride, acrylamide, and triallylamine. The water-in-oil emulsions are formulated to invert after addition to the inorganic solids suspension, as the suspension travels to a mechanical thickening device for further processing. The inorganic solids from refuse or concentrate mineral processing applications may be coal, copper ore, sand, gravel, taconite, beryllium, trona, kaolin or precious metals.
Abstract:
A content management system for associating content with user attributes and delivering targeted content to a wireless handset is described. The content management system comprises a database, a wireless handset, and a terminal. The database is configured to store a plurality of user profiles, a plurality of content items, and a plurality of content connections that connect content items to user profile data. The wireless handset presents a first interface that enables the wireless handset user to create and edit a user profile comprising one or more user attributes. The user profile is stored in the database. The terminal presents a second interface to a content administrator. The second interface enables the content administrator to create and edit content items. The content items are stored in the database. Content connections associate one or more user attributes with a content item.
Abstract:
A constant velocity (CV) joint assembly comprising a CV joint and an input member is disclosed. The CV joint that has a cage and a gear between which rotational drive can be transmitted. The input member is connected to the cage of the CV joint for transmission of rotational drive about an axis from an external component to the CV joint. The rotational drive is transmitted between the cage and the input member through interacting drive faces that are disposed in a plane that is generally parallel to the axis. The cage and the input member are retained in interconnection by fastening means that are not responsible for transmission of rotational drive between the cage and the input member. By separating the task of transmission of torque and retention of the connection between the cage and the input member, the fastening means required to perform the latter task can be comparatively light. An increase in torque capacity of the CV joint assembly does not lead to a corresponding increase in the strength requirement of such fastening means. The orientation of the drive faces ensures that there is minimal axial force between the cage and the input member.
Abstract:
An arterial clamp has opposed clamping posts arranged to lie at opposite sides of an artery to clamp the artery between opposed clamping faces of the posts. The posts are carried by a pair of arms pivotally movable one relative to the other to move the posts into clamping relationship with the artery. A ratchet device releasably locks the arms in a selected clamping position. The clamp including posts, arms, and ratchet device is formed as a one-piece plastics moulding.
Abstract:
A high-speed interface between a first network component and a second network component includes a positive voltage input (VINP) and a negative voltage input (VINN) for receiving an input data signal from the first network component; the positive voltage input (VINP) coupled to a negative output circuit (OUTN) and the negative voltage input (VINN) by a positive input bus and a negative input bus, the negative voltage input (VINN) also coupled to a positive output circuit (OUTP). Implementing the high-speed interface calls for applying a bias to the a positive input bus and a negative input bus to periodically multiplex a data signal, thus providing a common receiving path for functional data and wrap data of the data signal.
Abstract:
This invention relates to a so-called live anchorage for use in the prestressing of concrete structures, the stressing element being anchored in a hole having a frusto-conical portion and a cylindrical portion by means of a frusto-conical wedge device, the leading or narrow end of said wedge device being such that it extends into said cylindrical portion.