Abstract: An inverter adapted to gently invert multi-cell moulds used in a brick making machine includes a first carrier for transporting a mould through a first arcuate path, a second carrier for transporting a mould through a second arcuate path to cause inversion of the mould, and means for transferring a mould from the first to the second carrier. When the inverter is in use, the cumulative effect of transporting a mould through said first and second arcuate paths is to cause inversion of the mould without subjecting the mould to undue shock loads and to accurately locate the mould for subsequent operations thereon. The first and second carriers preferably include pairs of holders rotating synchronously in opposite directions.