Abstract: The disclosure relates to a work machine, in particular a duty-cycle crawler crane, having an undercarriage which comprises a middle part and at least one crawler carrier connected to the middle part and having at least one electric traction drive, wherein at least one energy transmission line for supplying power to the traction drive and at least one further supply line runs between the traction drive and the middle part. According to the disclosure, the at least one energy supply line and the at least one further supply line run together in a separate protection means outside the middle part and the crawler carrier.

Abstract: 2,5-Disubstituted thiophene derivatives, and more particularly, to 2-aryloxy-5-alkansulfonamido-thiophenes of the general formula: ##STR1## Wherein, R.sub.2 is CF.sub.3, C.sub.1 -C.sub.10 alkyl, or phenyl;X is O, S, or CH.sub.2 ; andR is aryl, C.sub.1 -C.sub.10 alkyl, or C.sub.3 -C.sub.8 cycloalkyl; which compounds are pharmacologically active in alleviating inflammation, asthma, arthritis, hypersensitivity, myocardial ischemia and dermatological conditions, such as, psoriasis and dermatitis, and gastrointestinal inflammatory conditions, such as, inflammatory bowel syndrome.

Abstract: A rotary cutter for making the socket bed for a complete endoprosthesis is slidable on a guide rod, which rod is first inserted into a guide bore which has previously been made in the hip bone. The relative axial position of the cutter with respect to the rod indicates the depth of penetration of the cutter.

Abstract: A socket for hip joint prosthesis is secured to a cavity in the bone tissue by a series of radially arranged pegs which can be projected outwardly from the wall of the socket into the surrounding tissue by a central screw member which also has a self-tapping thread which also enters the tissue.