A device for detecting transport boats includes a contact element for contacting a transport boat, and a connecting element spring mounted in a housing of the device, biased into an initial position and linearly displaceably guided via a guide of the housing. The contact element is connected to the spring mounted connecting element and is displaceable together therewith in such a way that contact of the transport boat with the contact element causes deflection of the connecting element against the bias from the initial position into a detection position. The device further includes a detection device adapted to detect reaching of the detection position by the connecting element.

A device for detecting transport boats includes a contact element for contacting a transport boat, and a connecting element spring mounted in a housing of the device, biased into an initial position and linearly displaceably guided via a guide of the housing. The contact element is connected to the spring mounted connecting element and is displaceable together therewith in such a way that contact of the transport boat with the contact element causes deflection of the connecting element against the bias from the initial position into a detection position. The device further includes a detection device adapted to detect reaching of the detection position by the connecting element.

A sintering device comprising a tray including a tray part in which metallic workpieces to be sintered (not represented here) are placed during the sintering operation and a base part in which the tray is located including gas-flowing holes and side wall extended upwardly from the edge of the upper surface of the base part, and a sintering chamber including side wall extended downwardly from the upper surface for covering the tray part and at least one gas flow passage between the inner surface thereof and outer surface of the side wall of the tray part;

wherein the tray part and base part are integrally formed; wherein the base part includes at the lower portion through holes in horizontal and longitudinal directions for gas inflowing and discharging, a hole at crossover point of the through holes for penetrating the center portion of the base plate and extended to the exterior, and wherein the lower end of the sinter chamber is disposed on the lowered and stepped surface of the base part and the stepped portion formed in the middle of the side wall of the sintering chamber is supported by the upper end of the side wall of the tray for allowing the gas to flow.