inclined upper portion of loading member 41 drags against the wire surface loading the wire whereby the loading member 41 functions to remove water from the lower surface of the wire in the third embodiment of the invention shown in fig3 loading member 41 moves in an up and down direction in relation to slide part 44 to maximize ease of movement balls 100 are arranged between an internal face of the loading member 41 and an external surface of the slide part 44 according to the invention balls 100 are mounted to loading member 41 with the aid of ball bushing 49 in third embodiment of the invention several balls 100 are mounted in the manner shown in fig3 to form a ball stack a plurality of these individual ball stacks are arranged in the transverse machine direction across the length of the loading device preferably each of the stacks are arranged at a selected distance from one another for example the distance from stack to another may be between 200 and 280 mm in the transverse machine direction in this embodiment it is preferable that slide part 44 is defined by a plurality of pins or the like formed in the top part of base member 43 and that the top parts of the slide parts 44 are fitted with some play with relation to the ball bushings 49 ball bushings 49 are provided to house each stacks of balls 100 the ball bushings 49 being secured to loading member 41 in this manner the ball bushings 49 and balls 100 therein allow a smooth relative movement between slide part.