Combination lock

A combination lock comprising a housing, a mount supporting a first slide member and a second slide member coupled thereto, the first slide member being capable of sliding in a plane from a first position to a second position and being biased towards the first position and having a stud capable of securing a closing lug, the second slide member capable of sliding in a plane parallel or substantially parallel to the first slide member and having one or more recesses each capable of accommodating a tumbler disc, the tumbler disc being capable of being moved by the second slide member only when a protrusion on a first face of the tumbler disc is aligned with a groove in the mount, the tumbler disc further comprising one or more than one tooth on a second face, each tooth being capable of cooperating with a respective hollow on a first face of a setting disc, wherein the combination lock further comprises a spring in the form of a plate formed of a resiliently flexible material having on one edge region one or more first finger tending to force the setting disc against the tumbler disc and one or more second finger each capable of protruding into one of a plurality of catch recesses on a second face of the setting disc, wherein the number of catch recesses corresponds to the number of secret codes on the setting disc, and wherein the opposite edge region of the plate has one or more third finger biased to act on the closing lug to tend to eject it.