Abstract: Disclosed is an improved coin collector to be set in an automatic dispenser. It comprises a coin bag member comprising a coin bag and a bag frame; and a cover member having first slot means to receive counter projection means of a stationary plate, which is fixed to the inside of the dispenser, a semicylindrical cover circumferentially rotatable about its pivot axles between opening and closing positions, second slot means to receive counter projection means of the bag frame, and a lock to fasten the coin bag member to the cover member. Use of the semicylindrical cover permits a compact design of the coin collector, and the semicylindrical cover is guaranteed to be free of inadvertent closing in setting the coin collector in the automatic dispenser.

Abstract: An improved auxiliary lock for closing and fastening a movable part to a stationary part using a key is described. The device comprises a bolt assembly comprising an inner cylinder having a key hole and an outer cylinder encircling the inner cylinder, a first re-entrant engagement member to be fixed to the movable part and a second re-entrant engagement member to be fixed to the stationary part. The first and second re-entrant engagement members have holes made therein to be put in alignment when these re-entrant members are nested together with one projection of each engagement member inserted in the indentation of the counter engagement member. The bolt assembly is inserted in the through holes of these re-entrant engagement members when nested, thereby locking the movable part to the stationary part.