Abstract: A hydraulic cylinder may include a cylinder body having an open end with an opening, a piston rod movable back and forth, a close-off member having an insert part protruding in a fitting manner into the open end of the cylinder body, the close-off member having a flange opposing the edge of the cylinder body, a coupling means operable between the inner surface of the cylinder body and the outer circumferential face of the insert part to secure, in at least one axial direction, the close-off member in the cylinder body, the coupling means including a radially-compressible coupling ring, and a clamping ring clamped between the flange and the edge at the open end of the cylinder body, the clamping ring being made of a resilient, compressible material, the clamping ring being clamped, when compressed in the axial direction, between the flange and the edge at the open end.

Abstract: A technique, including associated method and system, for on-line measurement of a trace element in a crude or heavy fuel stream for a refinery, including in one embodiment: providing at least one x-ray fluorescence (“XRF”) analyzer at a point for the refinery; analyzing the petroleum stream for chlorine using the analyzer; and providing results from the analyzer to refinery operators, to improve refinery operations. The analyzer may be a monochromatic wavelength XRF analyzer, wherein the analyzer focuses energy to/from the stream using an x-ray engine having at least one focusing, monochromating x-ray optic. The analyzer may be an MWDXRF or ME-EDXRF analyzer; and the trace element may be one or more of the following elements: S, Cl, P, K, Ca, V, Mn, Fe, Co, Ni, Cu, Zn, Hg, As, Pb, and Se; and in one embodiment the stream is crude, and the trace element is chlorine.

Abstract: A support device for persons, such as a bed, treatment or operating table, chair, comprises: a frame; a first and a second movable member, which movable members can be adjusted independently of one another and which are designed to support the person or one or more parts of the person in various positions, and a hydraulic system for adjusting the movable members, the hydraulic system comprising: a reservoir for hydraulic liquid; a first and a second hydraulic actuator associated with the first and second movable member, respectively, which hydraulic actuators can each be moved in two directions; a hydraulic pump; a pump activating member which is operatively connected to the pump in order for an operator to activate the pump; a valve assembly which is provided in the hydraulic circuit between the pump and the respective actuators, and a valve assembly operating member which can be mechanically operated by an operator and is mechanically connected to the valve assembly for selecting and providing a connection

Abstract: A hydraulic cylinder may include a cylinder body having an open end with an opening, a piston rod movable back and forth, a close-off member having an insert part protruding in a fitting manner into the open end of the cylinder body, the close-off member having a flange opposing the edge of the cylinder body, a coupling means operable between the inner surface of the cylinder body and the outer circumferential face of the insert part to secure, in at least one axial direction, the close-off member in the cylinder body, the coupling means including a radially-compressible coupling ring, and a clamping ring clamped between the flange and the edge at the open end of the cylinder body, the clamping ring being made of a resilient, compressible material, the clamping ring being clamped, when compressed in the axial direction, between the flange and the edge at the open end.

Abstract: A vehicle comprises a chassis and a tilt cab which is mounted to said chassis and is tiltable with respect to the chassis. The vehicle furthermore comprises a tilting system for tilting said tilt cab relative to the chassis between a lowered position and a raised position. The tilting system comprises a reservoir for hydraulic fluid, a pump and at least one double-acting hydraulic tilt cylinder having a push chamber and a pull chamber. The cylinder has a movable piston and piston rod assembly, wherein the piston separates the push chamber and the pull chamber. The cylinder is connected to the chassis and to the cab, such that when hydraulic fluid is supplied to the push chamber the cab moves to the raised position and when hydraulic fluid is supplied to the pull chamber the cab moves to the lowered position.

Abstract: A hydraulic cylinder comprising: a cylinder body which has an open end with an opening and an edge extending therearound, which cylinder body also has an inner surface; a piston rod; a close-off member which has an insert part, which insert part protrudes in a fitting manner into the open end of the cylinder body, which insert part has an outer circumferential face, wherein the close-off member also has a flange opposing the edge of the cylinder body; coupling means which are operable between the inner surface of the cylinder body and the outer circumferential face of the insert part for securing, in at least one axial direction, the close-off member in the cylinder body, and a clamping ring which is clamped between the flange and the edge at the open end of the cylinder body. The clamping ring is made of a resilient, compressible material, in particular is made of an elastomer. The clamping ring is clamped, when compressed in the axial direction, between the flange and the edge at the open end.

Abstract: A technique, including associated method and system, for on-line measurement of a trace element in a crude or heavy fuel stream for a refinery, including in one embodiment: providing at least one x-ray fluorescence (“XRF”) analyzer at a point for the refinery; analyzing the petroleum stream for chlorine using the analyzer; and providing results from the analyzer to refinery operators, to improve refinery operations. The analyzer may be a monochromatic wavelength XRF analyzer, wherein the analyzer focuses energy to/from the stream using an x-ray engine having at least one focusing, monochromating x-ray optic. The analyzer may be an MWDXRF or ME-EDXRF analyzer; and the trace element may be one or more of the following elements: S, Cl, P, K, Ca, V, Mn, Fe, Co, Ni, Cu, Zn, Hg, As, Pb, and Se; and in one embodiment the stream is crude, and the trace element is chlorine.

Abstract: A support device for persons, such as a bed, treatment or operating table, chair, comprises: a frame; a first and a second movable member, which movable members can be adjusted independently of one another and which are designed to support the person or one or more parts of the person in various positions, and a hydraulic system for adjusting the movable members, the hydraulic system comprising: a reservoir for hydraulic liquid; a first and a second hydraulic actuator associated with the first and second movable member, respectively, which hydraulic actuators can each be moved in two directions; a hydraulic pump; a pump activating member which is operatively connected to the pump in order for an operator to activate the pump; a valve assembly which is provided in the hydraulic circuit between the pump and the respective actuators, and a valve assembly operating member which can be mechanically operated by an operator and is mechanically connected to the valve assembly for selecting and providing a connection

Abstract: A support device for persons, such as a bed, treatment or operating table, chair, comprises: —a frame; —a first and a second movable member, which movable members can be adjusted independently of one another and which are designed to support the person or one or more parts of the person in various positions, and —a hydraulic system for adjusting the movable members, the hydraulic system comprising: —a reservoir for hydraulic liquid; —a first and a second hydraulic actuator associated with the first and second movable member, respectively, which hydraulic actuators can each be moved in two directions; —a hydraulic pump; —a pump activating member which is operatively connected to the pump in order for an operator to activate the pump; —a valve assembly which is provided in the hydraulic circuit between the pump and the respective actuators, and —a valve assembly operating member which can be mechanically operated by an operator and is mechanically connected to the valve assembly for selecting and providing a co

Abstract: A vehicle comprises a chassis and a tilt cab which is mounted to said chassis and is tiltable with respect to the chassis. The vehicle furthermore comprises a tilting system for tilting said tilt cab relative to the chassis between a lowered position and a raised position. The tilting system comprises a reservoir for hydraulic fluid, a pump and at least one double-acting hydraulic tilt cylinder having a push chamber and a pull chamber. The cylinder has a movable piston and piston rod assembly, wherein the piston separates the push chamber and the pull chamber. The cylinder is connected to the chassis and to the cab, such that when hydraulic fluid is supplied to the push chamber the cab moves to the raised position and when hydraulic fluid is supplied to the pull chamber the cab moves to the lowered position.

Abstract: A support device for persons, such as a bed, treatment or operating table, chair, comprises:—a frame;—a first and a second movable member, which movable members can be adjusted independently of one another and which are designed to support the person or one or more parts of the person in various positions, and—a hydraulic system for adjusting the movable members, the hydraulic system comprising:—a reservoir for hydraulic liquid;—a first and a second hydraulic actuator associated with the first and second movable member, respectively, which hydraulic actuators can each be moved in two directions;—a hydraulic pump;—a pump activating member which is operatively connected to the pump in order for an operator to activate the pump;—a valve assembly which is provided in the hydraulic circuit between the pump and the respective actuators, and—a valve assembly operating member which can be mechanically operated by an operator and is mechanically connected to the valve assembly for selecting and providing a connection

Abstract: A hydraulic cylinder comprising: a cylinder body which has an open end with an opening and an edge extending therearound, which cylinder body also has an inner surface; a piston rod; a close-off member which has an insert part, which insert part protrudes in a fitting manner into the open end of the cylinder body, which insert part has an outer circumferential face, wherein the close-off member also has a flange opposing the edge of the cylinder body; coupling means which are operable between the inner surface of the cylinder body and the outer circumferential face of the insert part for securing, in at least one axial direction, the close-off member in the cylinder body, and a clamping ring which is clamped between the flange and the edge at the open end of the cylinder body. The clamping ring is made of a resilient, compressible material, in particular is made of an elastomer. The clamping ring is clamped, when compressed in the axial direction, between the flange and the edge at the open end.