Abstract:
A fuse structure (10) for automatically resetting fuses is in the form of a housing (14) for enclosing a resettable fuse circuit pack. The housing comprises a plurality of identically constructed shells. A plurality of ferrule mounts (59) is disposed on the housing, and annular indentations (46) are disposed on the ferrule mounts. Locking means (70) is located on the shells, and ferrules (106, 108) are placed on the ferrule mounts. A positive stop portion (42) is positioned on the shells, and is associated with each ferrule mount for locating the ferrules on the ferrule mounts. New fuse circuits (116) are also provided for insertion into the fuse structure.
Abstract:
A strapping machine arranged to compress a load (16) along a vertical axis, as well as along a longitudinal, horizontal axis, and to confine the load along a transverse, horizontal axis, before strapping the load. A platen (70) is arranged for vertical movement toward and away from a roller table (50). Load-end formers (90,92) are arranged, in pairs for relative movement toward and away from each other along a longitudinal, horizontal axis, and for relative movement along the platen (70), in engagement with the platen (70) at least after the platen (70), has been lowered partially. Load-confining doors (280, 290) are pivotable between closed positions, in which such doors (280, 290) confine opposite sides of the loads (16), along a transverse, horizontal axis, and opened positions. Strapping heads (350, 352, 354, 356) and coacting strap chutes (390, 392, 394, 376) are carried by the platen (70).
Abstract:
A fuse comprises a body (12) having a blow chamber (32). A fusible element (14) is contained within the body and extends through the blow chamber. A contact (20) is disposed on the body electrically connected to the fusible element. The blow chamber (32) is sealed around the fusible element so that thermal energy in the fusible element can increase within the blow chamber for causing the element to open when an elevated current is applied to the element. The blow chamber is sufficiently sealed around the element for retaining a pressure created therewithin by vaporization of a portion of the element; that pressure is sufficient to cause an arc produced by fusion of the element to extinguish. Thermal conductive cement (36) is disposed about the entire fusible element without the blow chamber for preventing the fusible element from opening without the blow chamber before opening within the blow chamber.
Abstract:
A wheel measuring machine (9) includes juxtaposed first and second spindles (23, 65) relatively movable toward and away from one another for mounting a wheel (10) to be measured therebetween. A first centering device (40) is mounted on the first spindle (23) to selectively center a first surface feature (12) of the wheel on an axis (16). The second spindle includes a second centering device (85, 95, 96) engageable with both the wheel and with the first spindle (23) to selectively center a second surface feature (13) on axis (16) when the first centering device (40) disengages the wheel (10). A distance transducer (15) sensingly engageable with a third surface feature (11) of the wheel (10) measures the distance between points along the third surface feature (11) and the spindle axis (16) once when the first surface feature (12) is centered on the axis (16) and again when the second surface feature (13) is so centered. From those measurements, parameter values describing dimensional relationships between the surface features are calculated.
Abstract:
Corrosion resistant fasteners and similar articles are compositely coated in which an epoxy base coating is applied on an inner metallic core and a top coating is applied on the epoxy coating, with the composition of the top coating comprising ester of hydrocarbon fatty acid. The epoxy base coat is preferably applied on the metallic core by cathodic electrodeposition. In preferred embodiments, the hydrocarbon fatty acid ester of the top coat is a formulation comprising a polymer of ethylene and propylene in hydrocarbon solvent. Particularly preferred top coat formulations additionally include a salt of sulfamic acid or a derivative such as cyclohexane sulfamic acid and/or salts of barium such as barium carbonate and barium sulfate. The composite coatings provide improvement in corrosion resistance of the fasteners.
Abstract:
A tire rim (21) for a tire testing machine has a stepped contour providing multiple positions to accommodate tires of differing bead (11) diameters. One or more filler rings (30, 35) are mountable on a bead seat (25, 26 or 27) to provide the proper contour (37) for inflating a tire having the next smaller diameter bead (11) seated on the adjacent bead seat.
Abstract:
The mass of a tire/wheel assembly (11) is altered (50, 11') to apply a static imbalance (W) to the assembly (11), in a manner which reduces the overall tendency of the assembly (11) to cause vibration in the plane perpendicular to its axis of rotation when in use. The applied imbalance (W) results in a desired net static imbalance oriented so as to induce a centrifugal force which opposes, and therefore tends to cancel, at least one component, such as the first order harmonic, of radial force variation characterizing the assembly (11'). The magnitude of the net static imbalance is limited and is preferably selected to substantially equal the lesser of either: (a) a predetermined maximum limit, or (b) the amount of static imbalance required to generate at a designated highway speed a centrifugal force whose magnitude substantially equals that of the aforementioned radial force variation component.
Abstract:
Tires (11) are measured to determine the value of a parameter indicating a tendency of the tires (11) to cause vibration in a given direction in tire/wheel assemblies (50). Each measured tire (11) is assigned a tire rank designation in accordance with the order in which its measured value of the magnitude of that parameter falls in relation to the magnitudes of that parameter among a certain group (23) of tires. Wheels (13) are measured to determine the value of a second parameter indicating a tendency of the wheels to cause vibration in tire/wheel assemblies (50) in that same given direction. Each wheel (13) in a certain group of wheels is ranked in accordance with the order in which the magnitude of its second parameter falls in relation to the magnitudes of the second parameter among the other wheels (13) in the group. Tires (11) and wheels (13) having corresponding respective rank designations are paired with one another to be combined into a tire/wheel assembly (50) wherein the tire (11) and wheel (13) are mutually oriented such that the vibrational tendencies of the first and second parameters tend to cancel one another.
Abstract:
A machine (9) for measuring force variation or imbalance of tires particularly at high speeds. A rotating roadwheel (10) is engaged by a tire (11) mounted on a spindle (12). Force sensing means, such as load cells, are operably interposed between the tire spindle (12) and a force sensor mount (47). To minimize the adverse effects of mechanical resonance of the machine on force measurement accuracy, the roadwheel (10) and/or the force sensor mount (47) are connected to ground through dampers (23, 32) which provide a damping ratio of at least about five percent and preferably higher. Where the force sensor mount (47) is to be supported by such damping means (32), the invention further contemplates interposing a large mass (13) between that damping means (32) and the force sensor mount (47).
Abstract:
An axial pole motor includes a stator (9) and a rotor (3) which face one another across a plane perpendicular to the rotor axis, the stator having coil windings (12) substantially uniformly circumferentially spaced and lying in planes substantially perpendicalar to the rotor axis defining a number of stator poles (11), the rotor also including a number of rotor poles (4) comprising one or more permanent magnets. The number of stator poles (11) is different to the number of rotor poles (4) and the stator poles (11) and rotor poles (4) are of substantially the same size and shaped to provide a pole overlap pattern in which when any one rotor pole completely covers a facing stator pole, the difference between the number of rotor poles and the number of stator poles which exist between that rotor pole and the next rotor pole which completely covers a facing stator pole is one.