As an optional upgrade on our Victorian greenhouses, antique lever operated opening systems can be specified to control the sashes along the side.
Traditional cast linkages are used to open a series of vents together, via one lever handle. A castellated pinion allows the vents to be locked closed or in a number of open positions. Since the vents are opened without the need to reach across any staging or between delicate plants, these systems can have practical benefits as well as adding to the period appearance.
Components are cast from aluminium using existing patterns taken from original ironwork. If you have vent gear from a previous greenhouse it can be refurbished and reused, with patterns being taken for additional parts where necessary.