this invention relates to a mold carriage for carrying thereon a mold for bending a glass sheet , or a stack of glass sheets to be laminated , placed thereon into a curved shape by heating in a furnace . to locally intensely heat the glass sheet in a selected area to be bent sharply relative to the major area , the mold carriage is installed with a heater to heat a selected area of the glass sheet from underneath , a holder to hold the heater and adjust the position of the heater , and a heater support to support thereon an external heater which is suspended from a separate member disposed in the furnace to heat the afore - mentioned area of the glass sheet from above . the heater support also can adjust the position of the external heater .