Abstract: A device in a vending machine in which articles are fed stepwise to a position of delivery opposite a delivery opening in the machine to be dispensed therefrom one by one, has a cover which is pivotal between a closed position in which it covers the delivery opening, and an open position in which it exposes the delivery opening to permit dispensing an article fed to the position of delivery. The device has lock in the form of an electromagnet which is adapted to lock the cover in the closed position, and a pusher in the form of an arm which is fixed to the cover and adpated, when the cover is swung from the closed position to the open position, to push the article fed to the position of delivery, at least a certain distance out of the delivery opening. A releaser is adapted to suspend the locking action of the lock when an article has been fed to the position of delivery.

Abstract: An automatic sharpening of the slide surface of a skate to desired profile with regard to at least two dimensions x and y in a coordinate system is disclosed. A grinding wheel is by guide means movable in x-direction in the longitudinal direction of the slide surface and by guide means movable in y-direction. Firstly, a scanning of the existing profile of the slide surface is carried out by means of the grinding wheel which with a substantially constant abutment pressure forceably is moved along the slide surface, during which movement the x- and y-coordinates of the profile are continuously recorded in a memory. After eventual correction of the coordinates in the memory the grinding is carried out by forcing the grinding wheel in rotating state to repeat the recorded coordinates upon impulses from the memory.