Abstract: A hydraulic system for operating the rollers and one or more steam chests in a laundry flatwork ironer. A two-way, variable delivery, high pressure, main pump operates a hydraulic motor driving the ironer rollers. A one-way, fixed delivery, charge pump keeps the hydraulic circuit between the main pump and the hydraulic motor fully charged. The charge pump also powers a hydraulic control circuit for the main pump and controls the operation of steam chest lift cylinders. The control circuit for the main pump has a positioning cylinder and a speed control cylinder which jointly control the direction and delivery rate of the main pump, thereby controlling the direction and speed of the ironer rollers. The control circuit has a solenoid valve for stopping the hydraulic motor in an emergency and a solenoid valve for selectively controlling the speed of the chest lift cylinders.

Abstract: A gas heated direct fired center tube revolving ironer for use in an automated fabric ironing environment features improved roller surface temperature distribution control. An adjustable hot air recirculation system with a venturi throat, a high momentum gas burner, an improved temperature control system and an exhaust blower cooperate to provide an even temperature along the ironing surface. Multiple high and low temperature controls provide backup and ensure accuracy and safety. The gas fuel consumption is minimized thereby reducing operating costs.

Abstract: A heated revolving ironing cylinder is affixed with a flexible ironing bed drawn taut against the polished revolving cylinder surface functioning to efficiently iron and dry laundry work pieces in a single pass through the ironer. The ironer is comprised of a feed conveyor system delivering laundry work pieces to the top of the revolving ironing cylinder. The flexible ironing bed features holes and anti-friction and anti-static materials to provide a dry, highly polished, static-free laundry work piece. Further ironing efficiency is gained by reduced roller maintenance by means of a roller and air cylinder cooling system.