Kerr, who founded the Hermetic Fruit Jar Company that year. Kerr utilised the patents of Julius Landsberger from San Francisco for a metal lid with a permanently fastened composition gasket. These jars were a milestone for home preserving. The Economy jar had a wide mouth for easy use. In , Kerr made a smaller, flat metal disc lid. It fit on top of a Mason jar and could be used with other canning jars.
Could Your Old Mason Jars Be Valuable? Check For These Tell-Tale Signs
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A Mason jar — named after John Landis Mason , who patented it in — is a molded glass jar used in home canning to preserve food. The jar's mouth has a screw thread on its outer perimeter to accept a metal ring or "band". The band, when screwed down, presses a separate stamped steel disc-shaped lid against the jar's rim. An integral rubber ring on the underside of the lid creates a hermetic seal. The bands and lids usually come with new jars, but they are also sold separately. While the bands are reusable, the lids are intended for single-use when canning.
Ball jar dating chart
Kerr self-sealing jars and the Kerr Economy were created in Alexander H. Kerr also founded the Hermetic Fruit Jar Company in the same year. San Francisco man Julius Landsberger patented metal lids fastened onto a composition gasket.
These humble glass pieces were designed for putting up fruits and vegetables in the days before refrigeration. Here are some of the most valuable finds from the s to the s, when hundreds of companies were vying for a spot on America's shelves:. This unmarked, mid- s model featured cork, which did little to preserve its contents. The unique topper makes it of note today. Issued only from to , this jar could double as a dispenser for a coffee grinder.