Abstract: The invention is directed to a device for performing remotely-manipulated intenance work with a motor-driven tool such as an impact wrench or the like on conduits and process components arranged in a shielded, radioactively-ladened cell. The device includes an impact wrench mounted in a carrier frame. The impact wrench can be remotely-controlled in a vertical or a horizontal working position and is movable on the cable hoist of a remotely-controlled crane. The carrier frame is provided with motor-driven retractable and extendable torque bracing spindles on its longitudinally extending sides to prevent twisting of the impact wrench and carrier frame in the vertical working position about the cable of the cable hoist.

Abstract: This disclosure relates to a clasp for gripping free end portions of a strap to maintain a loop thereof tightly engaged around an object, such as a portion of the human body, the clasp including upper and lower casing halves with means for releasably securing the casing halves in superposed relationship to each other to define a passage therebetween through which free end portions of a strap may pass, a clamping lever pivotally carried by the clasp to present one end portion lying at the loop end of the passage whereby to be forceably engaged by the loop when tight so that the other end of the clamping lever clamps the free end portions of the strap between it and one of the casing halves, and the lower casing half having a bridge-like cross bar lying transversely within the passage.