Abstract: A proximal control valve system for regulating flow of oxygen includes an oxygen inlet attached to an oxygen outlet with an oxygen regulator being positioned therebetween. The oxygen inlet includes a spring plunger assembly that engages with one of a plurality of indents on the gas regulator to enable the flow of oxygen from the oxygen inlet through a desired thru hole in the oxygen regulator to the oxygen outlet. The oxygen regulator is configured to adjust a flow level of the oxygen to a desired level by rotating the oxygen regulator up to 360° about a central axis, allowing the oxygen to flow through the desired thru hole. The system works with a low pressure oxygen source and is positioned proximal to a user such that the user is not required to move to the oxygen source to adjust the flow level of the oxygen.

Abstract: A transmission apparatus includes a rotatable drive shaft having a first a second end, the second end of the drive shaft defining a taper and a first portion of a dogtooth device. A rotatable driven shaft has a first and a second extremity, the driven shaft being selectively driven by the drive shaft, the driven shaft defining a spline. A slider drivingly cooperates with the spline, the slider being slidably secured to the driven shaft. A second portion of the dogtooth device is secured to the slider such that selective engagement of the first and second portions of the dogtooth device is permitted. A synchro ring defines a tapered bore, the ring being anchored within the slider such that when the slider is moved towards the taper of the drive shaft, the tapered bore of the ring cooperates with the taper of the drive shaft so that the ring and the slider anchored thereto are rotated and so that the first and second portions of the dogtooth device engage such that the driven shaft is driven by the drive shaft.

Abstract: A transmission apparatus includes a rotatable drive shaft having a first a second end, the second end of the drive shaft defining a taper and a first portion of a dogtooth device. A rotatable driven shaft has a first and a second extremity, the driven shaft being selectively driven by the drive shaft, the driven shaft defining a spline. A slider drivingly cooperates with the spline, the slider being slidably secured to the driven shaft. A second portion of the dogtooth device is secured to the slider such that selective engagement of the first and second portions of the dogtooth device is permitted. A synchro ring defines a tapered bore, the ring being anchored within the slider such that when the slider is moved towards the taper of the drive shaft, the tapered bore of the ring cooperates with the taper of the drive shaft so that the ring and the slider anchored thereto are rotated and so that the first and second portions of the dogtooth device engage such that the driven shaft is driven by the drive shaft.

Abstract: The present invention relates to a release mechanism (1) for use in supporting a load (6) from a crane. The release mechanism (1) comprises a remotely operable release hook (2) for supporting by a cable (4) a load (6). The hook (2) is provided with an ejector lever (8) for releasing the cable from the hook (6) upon actuation of the ejection lever (8). Connected above the hook (2) by a cable link (10) is a control unit (12) arranged for controlling the ejector lever (8) on the hook (2). The control unit (12) and the ejector lever (8) are connected together by a communication cable (14) carrying pressurised hydraulic fluid. The control unit and the hook are substantially spaced apart.