A portable crimping device and method of making such a crimping device is disclosed. A portable crimper transfers hydraulic forces back into the hydraulic cylinder and not just into a pinned or fixed connection supporting it. To withstand these forces, the cylinder is milled out of a single piece of source metal and the arm that transfers the forces is joined to the cylinder via pair of flanges extending the entire length of the cylinder to distribute them over a wider surface area.

A joint assembly for use in a motor vehicle. The joint assembly includes a first joint member that is drivingly connected to a second joint member via one or more third joint members. At least a portion of the first joint member is drivingly connected to at least a portion of a first shaft and at least a portion of the second joint member is drivingly connected to at least a portion of a second shaft. One or more first joint member tool grooves circumferentially extends along the outer surface of the first joint member. The joint assembly further includes a nut that drivingly connects at least a portion of a third shaft to at least a portion of the second shaft. The nut includes one or more nut tool grooves circumferentially extending along the outer surface of the nut.

A device and method for operating a motor-actuated working device is provided. A certain working operation requires a rise in an applied force to a certain working force. The device enables a rise in the force to a general working force that exceeds the certain working force and an apparatus is provided for monitoring the device value. For the certain working operation, an evaluation is performed to detect the characteristic change and that the attainment of the characteristic change is used as a signal for ending the certain working operation after the certain working force has been attained but before the general working force has been attained.

A device to extract a support yoke from a reheat stop valve of a steam turbine is provided. The device includes a hydraulic cylinder for applying a pushing force to the support yoke, an attachment weldment for attaching the hydraulic cylinder to the reheat stop valve casing, and a conical cylinder coupled to the hydraulic cylinder and configured to evenly impart the pushing force to the support yoke from within the reheat stop valve in order to separate the reheat stop valve from the support yoke. A method to extract a support yoke from a reheat stop valve of a steam turbine is also provided.

A hydraulically operated handheld device and a method of operating same are provided. The device includes a hydraulic pump, a moving part, a fixed part and a return valve with an associated valve seat. The moving part is moved into a working position due to the buildup of a hydraulic pressure by filling a hydraulic chamber with hydraulic medium from a reservoir with the aid of the hydraulic pump. The moving part can be automatically moved back from the working position into an end position upon reaching a predefined working pressure by opening the return valve. The hydraulic pressure acting upon the return valve is increased by a separately triggerable pressure increase, which results in opening of the return valve, in a hydraulic medium volume located upstream of the return valve in a flow direction of the hydraulic medium during the movement into the end position.

Embodiments of the invention provide a ram guide for a crimping tool. The crimping tool includes a crimping head and a ram head. The ram guide includes a track and slot. The ram guide is configured to guide the ram head within a crimp portion of the crimping head to axially align the ram head with the crimping head.

A working head (1) for a compression or cutting tool (100) comprises a connecting portion (3) for a removable connection of the working head (1) with an actuation part (2) of the tool (100), two jaws (4) movable between an open position and a closed position to perform the compression or cutting, and a local storage (6) configured for storing one or more cumulative data representative of a stress history of the jaws (4), wherein the local storage (6) is fixed to the working head (1).

A working head for a hydraulic power tool including a head frame and a first moveable die head configured to move along the working head frame. The first moveable die head configured to receive a first moveable die comprising a first body length. A second die head is adapted to receive a second die comprising a second body length. The first body length of the moveable die is different from the second body length of the stationary die.

In accordance with embodiments of the invention there is provided an extraction system, and extraction apparatus (30) and method therefore in for removing studs from sockets. The system is particularly advantageous for removing one or more studs (28) from the sockets (24) of bell cranks (16) of steering systems of vehicles such as an Off-highway Truck. In a particular arrangement the apparatus (30) comprises a frame member (32) adapted to be attached to a pivot joint (14) for extraction of the stud (28) from the socket (16). Furthermore, the apparatus 30 comprises actuator means (34) adapted to be selectively displaced between an extended condition and a contracted condition for applying a force to the stud (28) so as extract or at least loosen the stud (28) from the socket (36). In a particular arrangement, the actuator (34) comprises a hydraulic actuator. The system is adapted to remotely operate the extraction apparatus (30).

A ventilation device for ventilating rooms, has a first air routing device for routing a first flow of air, the routing device having a first room-side outlet, a first flow space in which at least one first fan capable of bidirectional operation is arranged, and a first outside outlet; a second air routing device for routing a second flow of air, which is fluidically completely separate from the first air routing device and has a second room-side outlet, a second flow space in which at least one second fan capable of bidirectional operation is arranged, and a second outside outlet; an integral gas-solid heat exchanger adapted to route the first flow of air and the second flow of air in a respective set of passageways, in a fluidically separated but thermally coupled manner, wherein the solid in the first and the second air routing device additionally forms a respective regenerator.