Baker's oven

A baker's oven comprising a casing, two adjacent series of oven compartments within and insulated from the casing, the compartments of each series being substantially cylindrical, arranged coaxially one above another, and separated by horizontal heat insulating decks, a loading passage leading into each one of the oven compartments through a front opening of the casing, electric heating elements in each of the oven compartments and including top elements mounted under the heat insulating deck forming the compartment top and bottom elements mounted on the heat insulating deck forming the compartment bottom, a drive shaft passing axially through each series of oven compartments, drive means for simultaneously driving the two drive shafts, a rotary support for products to be baked within each oven compartment and being mounted on the drive shaft passing through the compartment, at lest one of the oven compartments containing a second rotary support mounted on the drive shaft passing through the compartment, the two rotary supports being spaced one above another, intermediate thermostatically controlled electric heating elements mounted within said compartment below an upper one and above a lower one of the two rotary supports, said drive means including a drive wheel rotatably mounted on each of the drive shafts, a motor on the casing, a drive from the motor to both of the drive wheels, and rotation transfer means for transferring rotation of each drive wheel to its drive shaft, such means being yieldable to resistance so that each drive shaft may be restrained from rotating without interrupting the drive from the motor to the drive wheels.