Elevator door sills are used in elevator systems that have sliding doors. The door sill comprises a sill plate and a support sill located below the sill plate. It also comprises a first guiding surface that engages that inboard sliding surface and a second guiding surface that engages the outboard sliding surface. It prevents the elevator door from swinging when the door slides opened and closed. It is used in elevator car doors. It is installed from a hallway without the use of a moving elevator platform. An elevator door sill is provided for mounting at the elevator entrance adjacent to the elevator shaft.

Elevator Furnace is used by loading the parts to be heat treated onto a car platform, rolled into position, and then raised into the furnace. This type of furnace saves spaces in the plant and can be especially suitable for the metal alloys that have to be quenched rapidly, because a quenching tank can be placed directly under the furnace. An elevator furnace was constructed, which was to be used by the men to ascend from the bottom of the shaft, thus relieving them from the labor of ascending the stairs at a time when they were suffering from prostration of the vital energy caused by working in compressed air.

Elevator is a transport device, which is used to move goods or people vertically. Elevators are characterized as being extremely safe. Indeed, their safety record, that of moving millions of passengers every day, with extremely low rate of incident, is unsurpassed by any other vehicle system, although fatalities due to malfunction have been known to occur on occasion.