Abstract: Setting device for a valve for the manual control of the position of a valve body. The handle portion of the setting device is provided with two wing portions extending in opposite circumferential directions outside a central portion of the handle portion. The handle portion can be manuvered by means of the screwdriver or the like, even in narrow spaces.

Abstract: Holding device for a piston position detector, contained in a casing and being displaceably mounted on the outside of a fluid pressure cylinder. The holding device consists essentially of a U-shaped yoke being displaceable along two mutually parallel guides and being lockable in a desired axial position. The yoke is locked by means of a first fastening screw, whereas the casing is insertable between the shanks of the yoke and is lockable in inserted position by means of a second fastening screw. The casing is protected by the yoke and is detachable from the latter, also when the yoke is located to the guides.

Abstract: A fastening device for actuating cylinders with longitudinal stringers extending axially along a cylinder tube. A fastening yoke, e.g. comprising two halves is clampable with the aid of at least one clamping screw for fixing it in a desired axial position along the cylinder tube. In accordance with the invention the opposing clamping portions of the fastening yoke act on two intermediate clamping blocks which are thus pivoted in opposite directions, so that clamping is achieved exclusively against the inner and outer side portions and whereby internal deformation of the cylinder tube is prevented.

Abstract: A valve connection array for mounting at a cabinet wall in a sealed cabinet for disposing a plurality of valve connection blocks in at least one row is disclosed. Each valve connection block includes a valve connection portion on a front surface for individually connecting a valve and associated connections ports on a rear surface for connecting pressurized medium conduits. At least one row of valve connection blocks define between opposite side surfaces thereof at least one inlet port and at least one outlet port for providing common inlet and outlet ports between juxtaposed valve connection blocks. The blocks include means for mounting the blocks in said row with said sides sealingly juxtaposed for defining said common inlet and outlet ports between blocks and with said blocks defining a common flat surface area substantially in the form of a rectangle around said row.

Abstract: Piston sealing and dampening device in a pressurized-fluid cylinder, where a piston (3) has a central recess (3a) facing towards a cylinder end cap (1a) and disposed such that when the piston is in the vicinity of its end position, said recess accommodates a sleeve portion (5) provided with an internal pressurized-fluid connection (6) and projecting from the cylinder end cap. An integrated sealing ring (10) seals against the outside of the sleeve portion (5) with an inner sealing ring lip (10e) and against the inside of the cylinder tube (2) with an outer sealing ring lip (10c).

Abstract: A pressure fluid cylinder without a piston rod and of the kind having a slotted cylinder tube (1) and a piston displaceable therein, said piston being connected to a movement transfer device, which extends radially through the slot. The slot is sealed axially on each side of the piston by means of internal and external sealing strips (31,32) consisting of a flexible sealing band (37, 38) as well as retention means (44,45) extending into the slot and securing a releasable mechanical engagement with each other or, by friction, with the side walls of the slot.

Abstract: A damping device in pressurized fluid cylinders, especially in hydraulic cylinders, for end position damping of the piston stroke. The device comprises a closure member connected to the piston and adapted to enter during a damping process into an outlet opening in front of the piston. A ring, serving as a non-return valve, is arranged with an axial play in an annular groove so as to choke the flow of pressurized fluid through the annular passage between the wall defining the outlet opening and the closure member, while permitting a fluid flow in the opposite direction during the return stroke of the piston. According to the invention, the ring has a cross-section permitting at least a radial deformation, and circumferentially distributed by-pass openings located in the region of the inside of the annular groove so as to permit said fluid flow during the return stroke of the piston.

Abstract: A hydraulic shock absorber includes a cylinder, a piston therein, a sleeve surrounding the cylinder wall and provided with an internal thread, the crest of which engages the cylinder wall, possibly a storage chamber for liquid provided outside the cylinder and connected to the slot of the thread, at least one cylinder chamber in communication with the slot of the thread through at least one narrow opening which may be throttled more or less by the crest of the thread, when the cylinder and the sleeve are rotated mutually.

Abstract: A pressure fluid cylinder without a piston rod and of the kind having a slotted cylinder tube (1) and a piston displaceable therein, said piston being connected to a movement transfer device, which extends radially through the slot. The slot is sealed axially on each side of the piston by means of internal and external sealing strips (31,32) consisting of a flexible sealing band (37,38) as well as retention means (44,45) extending into the slot and securing a releasable mechanical engagement with each other or, by friction, with the side walls of the slot.