Abstract: A transmission system including a first input shaft (1) that is arranged to receive drive directly from a drive source (80), and a second input shaft (3) that is arranged to receive drive from the drive source via a drive interruption means (86), such as a friction clutch device, a first gear element (15) rotatable relative to the first input shaft (1) and a selector assembly (29) for selectively locking the first gear element (15) for rotation with the first input shaft (1) from operational modes that include the following modes: lock the gear element for rotation with the first input shaft in forward and reverse torque directions, lock the gear element for rotation with the first input shaft in the forward torque direction and not lock in the reverse torque direction; and lock the gear element with rotation with the first input shaft in the reverse torque direction and not lock in the forward torque direction. A method of performing a power on down shift is also provided.

Abstract: A transmission system including a first input shaft (1) that is arranged to receive drive directly from a drive source (80), and a second input shaft (3) that is arranged to receive drive from the drive source via a drive interruption means (86), such as a friction clutch device, a first gear element (15) rotatable relative to the first input shaft (1) and a selector assembly (29) for selectively locking the first gear element (15) for rotation with the first input shaft (1) from operational modes that include the following modes: lock the gear element for rotation with the first input shaft in forward and reverse torque directions, lock the gear element for rotation with the first input shaft in the forward torque direction and not lock in the reverse torque direction; and lock the gear element with rotation with the first input shaft in the reverse torque direction and not lock in the forward torque direction. A method of performing a power on down shift is also provided.

Abstract: A transmission system including first and second shafts (4, 2; 104, 102), a plurality of gear trains arranged to transfer drive between the first and second shafts, an instantaneous selector mechanism (46; 146), and at least one non-instantaneous selector mechanism (40, 44; 140, 144, 153, 157), wherein the instantaneous selector mechanism (46; 146) and the or each non-instantaneous selector mechanism (40, 44; 140, 144, 153, 157) are arranged to create torque paths between the first and second shafts (4, 2; 104, 102) via the gear trains, wherein each gear train is selectable when one other gear train is transmitting torque.

Abstract: A transmission system and method for operating the transmission system, where the transmission system includes a selector assembly arranged to select between gear ratios instantaneously without substantial power interruption. The selector assembly includes first and second sets of engagement members and an actuator system. The actuator system may have a first actuator member for moving the first set of engagement members, a second actuator member for moving the second set of engagement members, a first actuator device for actuating the first actuator member and a second actuator device for actuating the second actuator member independently of the first actuator device.

Abstract: A coupling device for coupling rotatable bodies together includes first and second rotatable bodies, a plurality of coupling members for selectively coupling the first and second rotatable bodies together to transfer drive between the rotatable bodies, and an electro-magnetic actuator for controlling engagement of the coupling members. The coupling device can be incorporated into a transmission system, which includes first and second drive shafts, first and second gear sets mounted on the shafts for transferring drive between the shafts, a selector for selectively transferring drive between the first shaft and either the first or second gear set, and an electro magnetic actuator for controlling engagement of the engagement members and the drive formations.

Abstract: A transmission system including a first shaft (3), a first gear element (13, 16, 17, 21, 22, 25) rotatably mounted on the shaft (3), a selector assembly (29, 31, 33) arranged to selectively lock the first gear element (13, 16, 17, 21, 22, 25) for rotation with the first shaft (3) and a damping system (200; 300; . . . 1300) arranged to damp the locking of the first gear element (13, 16, 17, 21, 22, 25) with the first shaft (3). A gear element (13, 16, 17, 21, 22, 25) including first and second parts (202, 204; 302, 304; . . . 1002, 1004; 1202, 1204) that are arranged to rotate relative to each other and a damping system (200; 300; . . . 1000; 1300) for damping the relative rotational movement.

Abstract: A transmission system including first and second rotatable shafts, and means for transferring drive from one of the shafts to the other shaft including first and second gear wheels each rotatably mounted on the first shaft and having drive formations formed thereon, a selector assembly for selectively transmitting torque between the first shaft and the first gear wheel and between the first shaft and the second gear wheel, wherein the selector assembly includes an actuator assembly and first and second sets of engagement members that are moveable into and out of engagement with the first and second gear wheels independently of each other, said selector assembly being arranged such that when a driving force is transmitted, one of the first and second sets of engagement members drivingly engages the engaged gearwheel, and the other set of engagement members is then in an unloaded condition, wherein the actuator assembly is arranged to move the unloaded set of engagement members into driving engagement with the

Abstract: A transmission system including a gear train (7;9) and first and second instantaneous gear selector devices (29,31; 31,33), wherein the gear train is arranged to be selected by the first and second instantaneous gear selector devices (29,31; 31,33).

Abstract: A transmission system including first and second shafts (4, 2; 104, 102), a plurality of gear trains arranged to transfer drive between the first and second shafts, an instantaneous selector mechanism (46; 146), and at least one non-instantaneous selector mechanism (40, 44; 140, 144, 153, 157), wherein the instantaneous selector mechanism (46; 146) and the or each non-instantaneous selector mechanism (40, 44; 140, 144, 153, 157) are arranged to create torque paths between the first and second shafts (4, 2; 104, 102) via the gear trains, wherein each gear train is selectable when one other gear train is transmitting torque.

Abstract: A transmission system including a selector assembly (27,29,31) arranged to select between gear ratios instantaneously without substantial power interruption, said selector assembly (27) including first and second sets of engagement members (35,36) and an actuator system (38) having a first actuator member (48) for moving the first set of engagement members (35), a second actuator member (58) for moving the second set of engagement members (36), a first actuator device (46) for actuating the first actuator member (48) and a second actuator device (64) for actuating the second actuator member (58) independently of the first actuator device (46).

Abstract: A transmission system having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, and a control system arranged to measure the amount of deformation caused by torque in the transmission system in at least one static component or assembly that is deformed due to torque in the transmission system, wherein the control system is arranged to measure deformation and to adjust the torque in the transmission system according to the measured deformation and a known relationship between the gear ratios, wherein the transmission system is arranged such that selection of a new gear ratio occurs almost instantaneously without substantial power interruption.

Abstract: A transmission having a plurality of gear ratios, a selector assembly for selectively engaging the gear ratios, a clutch device for selectively transmitting drive from a drive source to the transmission, and a control system for controlling a clutch torque limit, in which the control system automatically adjusts the clutch torque limit value before the selector assembly selects an unengaged gear ratio, to allow relative rotational movement between input and output sides of the clutch if the torque exceeds the predetermined value when the unengaged gear ratio is engaged by the selector assembly.

Abstract: An inventory control system is disclosed. The system includes a plurality of inventory item storage locations, an access system for controlling access to the inventory items, where the access system includes an input device for entering the identity of a user, a monitoring system for monitoring the removal and replacement of the inventory items from the storage locations, at least one locatable device that is arranged to be carried by a user of the inventory control system and that is locatable by a positioning system, a positioning system, arranged to determine the location of the locatable device, and a data processing system for recording the removal and replacement of inventory items and location data received from the positioning system such that the movement of the or each locatable device can be tracked.

Abstract: An inventory control system and a method of manufacturing an item storage receptacle for the system is disclosed. The item storage receptacle has a plurality of individually-shaped recess for receiving specific inventory items. The storage receptacle may also have a monitoring feature for attaching a monitoring device configured to generate a signal for the system indicating whether the tool is present.

Abstract: A transmission system with a safety device for preventing lockup occurring. The transmission includes a first gear train (7) having a first gear element (17), a second gear train (9) having a second gear element (21), a first gear selector device (29) arranged for selecting the first gear element (29), a first actuator for controlling the operation of the first gear selector device, a second gear selector device (31) arranged for selecting the second gear element (21), a second actuator for controlling operation of the second gear selector device and a safety device (55) for preventing the first and second gear selector devices (29, 31) from simultaneously applying torque to the first and second gear elements (17, 21) in opposed directions.

Abstract: A coupling device for coupling rotatable bodies together that includes first and second rotatable bodies (1, 3 or 1, 5), a plurality of coupling members (19, 21, 28, 30) for selectively coupling the first and second rotatable bodies together to transfer drive between the rotatable bodies, and electro-magnetic actuator means (26) for controlling engagement of the coupling members. The invention also relates to a transmission system including the coupling device.

Abstract: A gear wheel construction for use in a constant mesh gear box, the gear wheel construction characterized by a single gear wheel (100) provided about a shaft (18) in a rotatable and engageable manner, the gear wheel (100) being divided longitudinally (axially) into two components, the first being a synchro-gear wheel (102) and the second gear being a partially toothed gear wheel (104), wherein the synchro-gear wheel (102) is provided in constant mesh with a gear wheel (106) forming its gear wheel pair whilst the partially toothed gear wheel (104is meshed therewith intermittently during rotation, the synchro-gear wheel (102) and the partially toothed gear wheel (104) having provided therebetween at least one biasing means (108) allowing momentary asynchronous rotation therein.

Abstract: An improvement to gear systems, the improved gear system characterized by at least one gear-wheel (42c) provided about a shaft (34), the shaft (34) and the or each gear-wheel (42c) being provided with a actuable engagement therebetween in both rotational and counter-rotational directions (86, 88), such that engagement of the actuable engagement (86, 88) of the or each gear wheel (42c) in both the rotational and counter-rotational directions causes the or each gear-wheel (42c) to rotate in conjunction with the shaft (34) and prevents such from counter-rotating relative to the shaft (34), disengagement of the actuable engagement (86, 88) of the or each gear-wheel (42c) in both the rotational and counter-rotational directions allows the or each gear-wheel (42c) to rotate independently of the shaft (34) and counter-rotate relative to the shaft (34), engagement of the actual engagement (86, 68) in the rotational direction and disengagement of the actual engagement (86, 68) in the counter-rotational direction of th

Abstract: A gear system characterized by providing at least one gear-wheel (58a) about a shaft (34), the shaft (34) having as least one pawl member (84) located therein, the or each pawl member (84) being caused to move into and out of engagement with a gear-wheel (48a) normally rotating freely with respect to the shaft (34) passing therethrough by the positioning of a roving magnet (48) withing the shaft, the engagement of the pawl member (84) with the gear-wheel (48a) thereby causing that gear-wheel (48a) to rotate with the shaft (34).

Abstract: A positive displacement pump apparatus includes a housing formed of a housing wall including a wall portion; a pump center line; a pump drive shaft extending through the wall portion coaxially with the pump center line and having a terminus within the housing adjacent the wall portion; a rotatable disc disposed in the housing adjacent the wall and secured to the terminus to be rotated by the drive shaft about the pump center line; and a vane mounted eccentrically on the disc for travel along a circular arc as the disc rotates. The vane has a vane axis about which the vane rotates relative to the disc; and two opposite, axially spaced first and second radial sides. The vane is mounted on the disc at the first radial side. The vane further has two opposite, radially spaced axial sides. The distance of the vane axis to either of the axial sides is greater than the distance from the pump center line to the vane axis.