摘要:
A lock assembly is provided to secure a multi-stage folding boom assembly having left and right booms, each boom having an middle section that pivots about a vertical axis with respect to an inner section, an outer section that pivots about a second vertical axis with respect to the middle section. The lock assembly includes a first interlock portion that receives a second interlock portion when the first section pivots laterally inward about the first vertical axis with respect to the second section to a first stage folded position. As the middle section pivots forward and laterally inward toward a second stage folded position with respect to the third section, the first interlock portion slidably moves and interlocks with the second interlock portion to restrain the outer section from falling out of alignment with respect to the middle section.
摘要:
A lock assembly operable to secure a lift linkage associated with moving a boom assembly between a lowered, operative position and a raised, inoperative position is provided. The lock assembly includes a lock pin mounted at a carrying frame interconnected between a lift linkage and the boom assembly. The lock assembly also includes a lock plate mounted at the lift linkage. In the raised position of the lift linkage, the lock plate includes a slot configured to align so as receive the lock pin. Once aligned, the boom is pivoted toward the folded, stowed position. As the boom pivots, the boom pushes the lock pin through the slot. The lift linkage is then lowered to seat the lock pin in the slot and thereby secure the lift linkage and supported boom in the raised, folded position.
摘要:
The invention provides an arrangement and method for detecting shorts between solder pads 31-34 in the production testing of circuit boards. The invention is particularly suitable for circuits driven by a constant current source or sink 6. By providing a conductor 101-103 between the solder pads, connected by a resistive path 11 to a source of potential 12, an additional current will flow through the resistive path to the solder pads if a short circuit exists in the region wherein the conductor is positioned. The additional current can be detected by applying a test probe in a circuit including the solder pads. The invention also provides an arrangement and method for detecting whether a polarity sensitive component 1 has been correctly connected to terminals 4, 5 on the circuit board. The component 1 can be a capacitor having one relatively wide positive terminal 2 and one relatively narrow negative terminal 3. The positive and negative terminals are intended to be connected to a positive and a negative connector respectively on the circuit board. Auxiliary pads 6a, 6b coupled to the positive connector 4 are provided juxtaposed with the negative connector 5 such that, if the capacitor is wrongly placed, the positive terminal 2 of the capacitor connects the negative connector 5 with the auxiliary connector 6a, 6b. Thus, the capacitor 1 is short-circuit and the misplacement can be detected by a suitable testing method.
摘要:
Described herein are antipyschotic compounds of formula (I) wherein, A is an optionally benzo-fused five or six member aromatic ring having zero to three hetero atoms independently selected from N, O, and S; Alk is (C1-4) alkylene optionally substituted with OH, methoxy, ethoxy, or F; Ar is optionally substituted phenyl, naphthyl, monocyclic heteroaromatic, or bicyclic heteroaromatic; R1 is hydrogen or (C1-4) alkyl optionally substituted with OH, OR3, or OCH2CH2OH, wherein R3 is (C1-2) alkyl; R2 is H, (C1-6) alkyl, halogen, fluorinated (C1-6) alkyl, OR4, SR4, NO2, CN, COR4, CONR5R6, SO2NR5R6, NR5R6, NR5COR4, NR5SO2R4, or optionally substituted phenyl, wherein R4 is hydrogen, (C1-6) alkyl, fluorinated (C1-6) alkyl, benzyl, or optionally substituted phenyl, R5 and R6 are independently hydrogen, (C1-6) alkyl, or optionally substituted phenyl; Z is one or two substituents independently selected from hydrogen, halogen, (C1-6) alkyl, fluorinated (C1-6) alkyl, OR7, SR7, NO2, CN, COR7, CONR8R9, SO2NR8R9, NR8SO2R7, NR8R9, or optionally substituted phenyl, wherein R7 is hydrogen, (C1-6) alkyl, fluorinated alkyl, benzyl, or optionally substituted phenyl, R8 and R9 are independently hydrogen, (C1-6) alkyl, or optionally substituted phenyl; and salts, solvates, and crystal forms thereof. Also described are the use of the compounds of formula (a) as antagonists of the dopamine D2 receptor and as agents for the treatment of psychosis and bipolar disorders, and pharmaceutical formulations of the compounds of formula (I). Also described are compounds useful as intermediates for the synthesis of the compounds of formula (I).
摘要:
An assembly for facilitating steering of an agricultural implement linkable to a work vehicle is disclosed. The assembly comprises at least a first ground-engaging wheel to engage a ground surface below a frame of the agricultural implement to support the frame above the ground surface. The assembly further comprises a positioning system for receiving a positioning signal from a positioning source. The positioning system determines a current position of the agricultural implement from at least the positioning signal, and the positioning system generates a control signal derived from the current position of the agricultural implement. The assembly further comprises a steering cylinder connected to the first ground-engaging wheel. The steering cylinder operatively connects to the positioning system to steer the first ground-engaging wheel based on the control signal.
摘要:
A new approach to capturing and reproducing either live or recorded three-dimensional sound is described. Called MTB2.5 for “Motion-Tracked Binaural 2.5,” the method employs six real or simulated microphones, a head tracker, and special signal-processing procedures to combine the signals picked up by the microphones. In the microphone array, two central microphones are placed at the positions of the ears of a listener facing forward, and four peripheral microphones are located in pairs on either side of the central microphones. Only the low-frequency components of the four peripheral microphone signals are needed, and the total bandwidth required is approximately 2.5 times the bandwidth of one full-bandwidth audio channel. MTB2.5 achieves a high degree of realism by effectively placing the listener's ears in the space where the sounds are occurring, moving the virtual ears in synchrony with the listener's head motions. MTB2.5 also provides a universal format for recording spatial sound.
摘要:
An apparatus for assisting an individual in installing shoe coverings. The apparatus comprises a shoe covering casing and an outer casing in which the shoe covering casing is placed. A plurality of shoe coverings are placed within the shoe covering casing and are mounted so that an individual merely needs to place their foot down into the shoe covering casing and move their foot forward, causing a shoe covering to envelop the foot (preferably with a shoe on it). A mounting mechanism within the shoe covering casing continually sets the top shoe covering on the stack of shoe coverings into a position readily capable of accepting shoes so that the shoe coverings can easily envelop these shoes.
摘要:
A draft force sensor is provided for a coupling member coupled between a towing vehicle and a towed earth engaging implement, such as a scraper. The draft force sensor includes first and second bores extending through the coupling member. Each bore has a horizontal axis which extends perpendicular to a main fore-and-aft axis of the coupling member. The second bore is positioned above the first bore and spaced apart from the first bore. Each of the bores is surrounded by an outer cylindrical wall. Four electrical strain gauges are spaced apart and placed on the wall of each of the bores. A center line bisects an axis line which extends between the axes of the first and second bores. The axis of each bore is spaced apart from the center line by a distance which is less than a diameter of the bores. The strain gauges are connected electrically in a circuit which generates a draft force signal in response to draft forces applied to the coupling member.
摘要:
A sealed, rotatable shaft assembly includes a housing that defines a bore that extends from an area exterior to the housing to an area interior to the housing. A shaft is rotatably disposed in the housing about an axis of the bore. The shaft extends through the bore between the interior area and the exterior area. An annular lip seal is disposed in the bore and is attached to one of the shaft and the housing. The lip seal extends from the one of the shaft and the housing to the other of the shaft and the housing in a contact seal so that rotation of the shaft with respect to the housing wears the lip seal to form a zero-clearance non-contacting seal. A labyrinth seal stage extends between the shaft and the housing. The labyrinth seal stage is disposed outward of the lip seal, with respect to the interior area and in communication with the lip seal.