Weck jar secured by steel tension clips which can be removed once a vacuum seal has formed. During storage the vertical position of the rubber seal's external tongue indicates the status of the sealing. Weck products are still produced and are available from German hardware and online stores. Used equipment is frequently sold on online auction sites and in opportunity shops. Weck jar A Weck jar is a molded glass jar used in canning to preserve food. It is popularly used for jam preservation, for its minimal look and foolproof rubber gasket with a glass lid. Weck jars were created by the
Cecil Francis Kilner Cecil Francis Kilner Group Captain Cecil Francis Kilner, DSO*, ADC (8 October 1883 – 20 October 1925) was an early English aviator and pilot in the 1914 Cuxhaven Raid. He was awarded two Distinguished Service Orders during service with the Royal Naval Air Service during the First World War, he died as a Royal Air Force Group Captain in 1925 after a short illness. Kilner was born on 8 October 1883 in Kemsing, Kent 12 April 1887 the son of William and Frances Kilner. He graduated from the Royal Military College at Sandhurst, and was commissioned a second lieutenant in