Abstract: A control system is provided for use in conjunction with a lighting fixture which will provide additional safety by avoiding the risk of fire. The safety system provides a number of sensors which are capable of detecting the presence of objects in close proximity to the lighting element and appropriately switching power off when such objects are detected. The actual detection is accomplished by use of a plurality of infrared sensors which create an infrared shield around the bulb of the lighting fixture and insure no objects intrude upon the shielded space while the lighting system is in operation.

Abstract: A method of measuring out a furnace charge of a predried and preheated coal in a closed system in which the coal is fed from a bottom discharge of a storage bunker into a filling cart container which is disposed therebeneath comprises opening the bottom discharge of the storage bunker to permit the fall of the coal from the bunker into the container while blocking off a portion of the filling container space until the remaining space in the filling container is filled and coal no longer flows through the bottom discharge and a column of coal remains in the discharge above the filling cart. A shutoff member is then directed through the column of coal in the bunker discharge above the filling cart container, to cut the column above the upper edge of the filling cart container, and opening the blocked-off portion in the filling cart container space to absorb the coal within the filling cart container.

Abstract: A lock is disclosed for charging holes of horizontal coke ovens and for permitting the charging of moist or preheated coal through charging devices, such as longitudinal conveyors fixedly mounted on the battery, or traveling charging cars, while preventing emission. The lock is designed as a spectacle gate accommodated in a casing which is firmly connected to the frame of the charging hole and forms a gastight seal against the connections of the charging devices even during the actuation of the spectacle gate, and with the spectacle gate being actuated through a linkage from outside the casing.

Abstract: A coke oven charging device for supplying coal to the charging chutes on the roof of a coke oven battery of a plurality of horizontally arranged coke ovens, comprises a horizontally disposed circulator conveyor supported on the roof at a spaced location thereabove and having a plurality of longitudinal and transversely spaced closable discharge openings. The conveyor is advantageously mounted for some displaceable movement on the roof. In addition, a charging car is movable on the roof over the coke ovens and it includes a closed transfer conveyor mounted on the car which is disposed along the length of the car. The car is advantageously provided with a plurality of coal transfer connections which makes it possible to connect the car and its conveyor to a selected opening of the circulating conveyor and to a selected chute for the transfer of the coal from the circulating conveyor through the car conveyor and into the coke oven battery.