Abstract:
A magnetic anchoring method and device provides a support on a wall structure comprising a magnetizable material. The magnetic anchoring device comprises a magnet unit configured to generate a magnetic field to develop an attracting force between the magnet unit and the wall structure. The magnetic anchoring device further comprises a force generating device configured to engage the magnet unit, and to generate a test force in a predetermined direction between the magnet unit and the wall structure, and a force measuring device connected to the force generating device, and configured for measuring the test force.
Abstract:
Disclosed herein is a magnet assembly that includes at least two magnets arranged in a fixed spaced relationship with one another thereby to define a space between the magnets that encompasses an imaging volume. Each of the magnets produces a variety of magnetic field strengths across inward-facing surfaces thereof that, in combination, produce an acceptably homogeneous magnetic field in the imaging volume. Also disclosed is a method of defining a magnetic field for an imaging volume. The method comprises generating an initial model of a magnet assembly; estimating a magnetic field for the imaging volume based on the model; calculating deviation between the estimated magnetic field and a target magnetic field for the imaging volume; and updating the model to reduce the deviation by modifying the magnet assembly to produce a variety of magnetic field strengths that, in combination, produce substantially the target magnetic field in the imaging volume.
Abstract:
A multi-stable magnetic article has plates which are generally juxtaposed and independently transformable in respective parallel planes between a stable closed orientation and a plurality of stable open orientations. The article is useful as a small cosmetic case containing a plurality of cosmetics on a single plate, all cosmetics being covered in the stable closed orientation and a selected one or more cosmetics being exposed in each of the stable open orientations.
Abstract:
In order to provide a windscreen cover that may be attached to the windscreen of a vehicle away from, as well as at, its perimeter, the present invention provides a cover assembly for a vehicle windscreen, the cover assembly comprising a cover (1) and at least one fixing member (11) secured to the cover, and the cover comprising at least one magnetic region (6) that is magnetically engageable with the at least one fixing member (11), wherein the cover (1) is adapted such that, in use, the cover is positionable adjacent the outside face of the windscreen and the or each fixing member (11) is positionable adjacent the inside face of the windscreen, such that the or each fixing member (11) engages magnetically with a magnetic region (6) of the cover through the windscreen.
Abstract:
A "magnet" mainly consists of a metal layer, an insulating layer, a filter cloth layer, a light absorber layer and an insulating coat wherein the metal layer is formed to be a metal layer with a negative charge by coating a conductive metal element vaporized under a high temperature on the entire surface of a insulator, and different metal layer are made of more than two kinds of different metal material, the insulating layer is an ordinary insulative material such as PU, PV, PVC and so on, the filter cloth layer is an insulative material which has at least 144,000,000 meshes per square inch. The "magnet" is made by disposing a metal layer as a center metal layer, disposing an insulating layer on the upper and the lower surface of the center metal layer respectively, laminating a second metal layer on the outside surface of the two insulating layers respectively, laminating a netlike filter cloth layer on the outside surface of the two second metal layers respectively, laminating an insulating layer on the outside surface of the two netlike filter cloth layers respectively, laminating a third metal layer on the outside surface of the insulating layers respectively, laminating a light absorber layer outside the third metal layers respectively and enveloping all of the layers with an insulating coat. The present magnet is different from a conventional magnet, the magnetic force line of a conventional magnet is confined to the direction and the area of N and S pole, while the present magnet can produces a minisize emanant magnetic field with all kinds of substance or the earth.
Abstract:
A cathode ray tube deflection yoke (16) is provided wherein the deflection yoke (16) includes a plurality of coils. One or more of the deflection coils (16) have a non-constant distribution of turns, whereby an electron beam passing through the deflection yoke (16) is deflected by a magnetic field that varies according to different numbers of turns relative to position of electrons of the electron beam between the entrance and exit of the deflection yoke (16). The non-constant turns distribution may be linear or non-linear, may be monotonic or non-monotonic, and/or may have a positive or negative turns bias, either in whole or in part. The horizontal deflection coil and/or the vertical deflection coil (16) , or both, may have a non-constant turns distribution.
Abstract:
A cryostat for superconducting transformers is provided which includes an electrically non-conducting load bearing thermal insulation that is adapted for use with a superconducting transformer. The cryostat (10) also prevents the formation of closed loop stray currents on its outer case. The cryostat contains the winding sets (30) and other related electrical equipment of 3-phase electrical transformer as tap changer (28) and electrical leads (29). The cryostat with lid (14) generally comprises a heat insulated cryogenic tank having an outer wall (18), electrically non-conducting liner (22), and load bearing thermal insulation layer (20) disposed therebetween. The tank holds liquid or gaseous cryogenic coolant (34) into which transformer components are immersed, thereby reducing electrical resistance losses or wire losses and magnetic hysteresis losses or core losses. A plurality of passages allow the passage of the limbs or legs (36) from iron core (32) of the transformer through the cryogenic tank.
Abstract:
An electromagnetic actuator, especially for the closure member of a valve, contains a solenoid unit (1), which has a cylindrical cavity (5) closed at one end and open at the other end. An axially introduced guide tube (2) for a magnetically movable armature (3) is arrestable in the cavity (5) by means of a securing device (19) engageable in a first recess (7) under spring force. To simplify connection of the actuator with and separation of the actuator from the component to be adjusted, provision is made for the securing device (19) to lie completely within the solenoid unit (1) and to snap automatically into the first recess (7) when the guide tube (2) is moved into a desired position in the cavity (5) of the solenoid unit (1).
Abstract:
A developer magnet roll (1) with insert molded end pin shafts (2) on both ends. The end pin shafts are insert molded within a ferrite and binder magnet roll to provide improved strength, straightness, and processing at reduced costs.
Abstract:
A combination of magnets (407, 412) provides a substantially uniform external magnetic field, in which a plate shaped magnet (407) generates an external magnetic field and a frame shaped magnet (412) generates another external magnetic field. The frame and plate shaped magnets (407, 412) are disposed proximate each other to provide, through the combination of their external magnetic fields, the substantially uniform external magnetic field in a plane disposed substantially parallel to the plate and frame shaped magnets (407, 412). The size, shape and relative position of the magnets (407, 412) combine to produce an external magnetic field having a highly uniform magnetic field orientation over a wider area of a plane disposed proximate the magnets than heretofore available.