摘要:
A rail system includes a cap rail defining a slot. Within the slot may be positioned expansion brackets that permit the cap rail to be mounted to a wall or a post. The expansion bracket is configured to engage an end of a fixture to position and secure the fixture within the slot. The expansion bracket defines a cable way for wires extending to or from the fixture. Other expansion brackets may be mounted within the slot to position and secure ends of fixtures when the mounting expansion brackets are not correctly positioned with respect to the end of the fixture. A rail system includes a pair of rails extending between a pair of posts. An in-fill panel is positioned within slots of each rail and extends between the rails. Expansion brackets within the slots engage the panel.
摘要:
A connector for pipe or tubing. The connector includes a unitary expansion member, formed from a body, a first expansion leg extending from the body, an optional second expansion leg extending from the body, and at least one opening extending through the body. In use, the connector is fastened in place by a fastener that is inserted through the at least one opening to contact at least one of the first and second expansion legs and force at least one of them to deform and contact the inside of the pipe or tubing, thereby securing the connector within the pipe or tubing.
摘要:
A connector for pipe or tubing. The connector includes a unitary expansion member, formed from a body, a first expansion leg extending from the body, an optional second expansion leg extending from the body, and at least one opening extending through the body. In use, the connector is fastened in place by a fastener that is inserted through the at least one opening to contact at least one of the first and second expansion legs and force at least one of them to deform and contact the inside of the pipe or tubing, thereby securing the connector within the pipe or tubing.
摘要:
A rail system includes a cap rail defining a slot. Within the slot may be positioned expansion brackets that permit the cap rail to be mounted to a wall or a post. The expansion bracket is configured to engage an end of a fixture to position and secure the fixture within the slot. The expansion bracket defines a cable way for wires extending to or from the fixture. Other expansion brackets may be mounted within the slot to position and secure ends of fixtures when the mounting expansion brackets are not correctly positioned with respect to the end of the fixture. A rail system includes a pair of rails extending between a pair of posts. An in-fill panel is positioned within slots of each rail and extends between the rails. Expansion brackets within the slots engage the panel.
摘要:
A general-purpose reusable algebraic-based composition algorithm for composing mappings between data schemas. The algorithm handles more expressive mappings, makes a best-effort to eliminate symbols when a perfect answer cannot be obtained, includes new heuristics, and is extensible. A relational algebraic language is provided wherein each mapping is expressed as a set of constraints, and each constraint is either a containment or equality of two or more relational algebraic expressions. The composition mechanism exploits monotonicity properties of algebraic operators in operator arguments, handles NULLs and bag semantics, operates to allow composition to produce a partial result when a complete result is not possible, facilitates symbols elimination one symbol at a time using left composition, for example, as a way of isolating the symbols, supports making a best-effort to eliminate as many symbols as possible from an intermediate schema, and handles unknown or partially known operators via delayed handling.
摘要:
A connector for pipe or tubing. The connector includes a unitary expansion member, formed from a body, a first expansion leg extending from the body, an optional second expansion leg extending from the body, and at least one opening extending through the body. In use, the connector is fastened in place by a fastener that is inserted through the at least one opening to contact at least one of the first and second expansion legs and force at least one of them to deform and contact the inside of the pipe or tubing, thereby securing the connector within the pipe or tubing.
摘要:
A molten metal flow controller (10) for a metal melt furnace having a tap hole (T) to release the molten metal from the furnace, where the controller (10) is configured to controllably release the flow of molten metal through the tap hole (T) using an actuator (14) that controllably moves a plunger (110) into and out of the tap hole (T) in response the increase or decrease in the molten metal flow rate through the tap hole (t) as measured by a sensor (130).
摘要:
A box has a plurality of outer panels forming an outer enclosure, and a plurality of inner panels. At least some of the inner panels are disposed in a reinforcing relationship adjacent corresponding ones of the outer panels to resist crushing of the box. The box may include a lid moveable between an open position and a closed position, and which is retained in the closed position by a pattern of perforations. A blank for the box is a sheet-like member having a plurality of panels separated by a plurality of fold lines. The blank is adapted to be folded to define the outer enclosure and inner panels of the box.
摘要:
A molten metal flow controller (10) for a metal melt furnace having a tap hole (T) to release the molten metal from the furnace, where the controller (10) is configured to controllably release the flow of molten metal through the tap hole (T) using an actuator (14) that controllably moves a plunger (110) into and out of the tap hole (T) in response the increase or decrease in the molten metal flow rate through the tap hole (t) as measured by a sensor (130).
摘要:
A connector for pipe or tubing. The connector includes a unitary expansion member, formed from a body, a first expansion leg extending from the body, an optional second expansion leg extending from the body, and at least one opening extending through the body. In use, the connector is fastened in place by a fastener that is inserted through the at least one opening to contact at least one of the first and second expansion legs and force at least one of them to deform and contact the inside of the pipe or tubing, thereby securing the connector within the pipe or tubing.