Reversible bolt lock, specifically with a locking function released by coin drop

A lock having a locking function released by a coin drop, said lock comprising:

• a lock box housing;
• a key-operated locking device;
• an operating element shiftable in response to operation of said locking device by said key;
• a support casing adapted to be mounted on a door intermediate said door and said lock box housing for receiving and supporting said lock box housing;
• a reversible latching element slidably mounted on said support casing, said reversible latching element having two heads formed on opposite end thereof, said support casing including a channel opening toward said lock box housing for receiving said latching element and guiding said element along a path of movement, said latching element being reversible about an axis extending transversely to the said path of movement of said latching element, said key-operated locking device being mounted within said channel of said support casing;
• a spring-loaded slide carried by said support casing, said slide being separable from and engaging one head of said latching element and being effective to bias said latching element and another head of said latching element toward movement in a forward locking direction;
• said operating element being engageable with said latching element to urge said latching element in a direction opposite to said forward locking direction.