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
Walter John Kilner Walter John Kilner Walter John Kilner, M.D. B.A., M.B. (Cantab.) M.R.C.P., etc. (1847–1920) was a medical electrician at St. Thomas Hospital, London. There, from 1879 to 1893, he was in charge of electrotherapy. He was also in private medical practice, in Ladbroke Grove, London. He wrote papers on a range of subjects but is today best remembered for his late study "The Human Atmosphere". In 1883 he became a Member of the Royal College of Physicians. In his spare time he was a keen chess player. In 1911 Kilner published one of the first western medical studies of the "Human