Patent ID: 8707858
Filing Date: 2014-04-29
Classification: A47J

Abstract:
1. An oven comprising a frame having two side members, and a heat source for heat-treating food pieces placed on a grid in a cabinet, wherein the heat source and the grid are part of the oven, with the grid having an upper part of an endless chain grate running around a number of chain supports of which lower and upper supports define lower and upper ends of the upper chain part; and a driving mechanism for moving the upper chain part in the direction of the upper chain support during heat-treating of a portion of food pieces and in the direction of the lower chain support during discharging of the finished heat-treated food pieces, wherein both the upper and lower chain supports include either rotatable rollers or crossbeams with curved surfaces and a rotatable disc is rotatably mounted in each side member of the frame and is placed between the lower and upper supports in such way that the rotatable disc is leaning against a top side of the upper chain part and wherein a part of the upper chain part extends along a curve which is following a length of arc of the periphery of the rotatable disc, with the upper chain part extending along a concave curve that is formed by the rotatable discs, wherein the concave curve is orientated in such a way that an angle of inclination, which the tangent to said curve at the lower chain support forms with a horizontal plane, is an angle that has a value that is lower than a value of the angle of inclination, which the tangent to said curve at the upper chain support forms with a horizontal plane.