Abstract: This invention relates to medicine, in particular to surgical devices for curing the locomotor apparatus with the aid of osteosynthesis. In order to improve operational reliability during implantation, the structure of the inventive device for elongating long bones is embodied in such a way that the axes of the bearing part and the thread screwed part of a screw-holder are offset at a distance ranging from 0.5 to 0.8 mm. A boss (bulge) is embodied on the external body of the device on the side of the orifice in which said screw-holder is fixed. The specific structural embodiment of a finger makes it possible to reduce the traumatic effects of a surgical operation.

Abstract: The invention relates to an electrically heated metal strip rolling mill comprising: front and back reels for supporting a metal strip; electric power suppliers; a roll stand having a base, a roll support frame having upper and lower casings being fastened with studs, at least two pairs of supporting rolls rotatably fixed in said support frame, at least one pair of working rolls rotatably fixed in said roll support frame and disposed between the support rolls, and a roll drive mechanism for driving the support rolls; a means for applying electricity directly to the surface of one roll of the pair of working rolls from the electric power suppliers and conducting the electricity to the outside directly from another roll of the pair of working rolls; and a strip cooler disposed after said roll stand for cooling said metal strip.