US278893A - Fruit-jar - Google Patents

Description

(No Model.)

J. L. DESTEIGER.

FRUIT JAR.

Patented June 5, 1883.

. rendering the same useless for the purposes of enable others skilled in the art to which itap- UNITED STATES PATENT OFFICE.

JOSEPH L. DE STEIGER, OF LA SALLE, ILLINOIS.

FRUIT-JAR.

SPECIFICATION forming part of Letters Patent No. 278,893, dated June 5, 1883,

Application filed January 17, 1883. (No model.)

To all whom it may concern Be it known that I, JosEPH L. DE STEIGER, a citizen of the United States, residing at La Salle, in the county of La Salle and State of Illinois, have invented certain new and useful Improvements in Fruit-Jars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will pertains to make and use the same.

The object of my improvement is to provide a fruit can or jar with a simple and perfect fastening which shall render the vessel perfectly air-tight, and which especially will admit of a more practicable construction from glass than has been heretofore followed.

Heretofore in the construction of glass fruit jars provided with a cover having lugs adapted to slide under lugs upon the neck of the jar, or in similar arrangements, the lugs or pro jections have been formed or shown as formed sharp and abrupt 011 their tops and at their ends and having the same thickness throughout their length. This form I have ibundreir ders them impracticable for molding, as it is impossible to remove the jar-bodies from molds having such lugs formed on its opposite sides without destroying the shape of such lugs and a fastening. I obviate this objection by beveling the top edges and ends of such lugs or projeetions. I11 combination with such shaped lugs or projections formed on the neck of the jar I propose to use a metal cap provided with pins or lugs riveted thereto and projecting inwardly and sliding under the lugs on the neck when the cap is fastened to the jar.

, My improvement is further illustrated in the accompanying drawings and following descrip tion.

Figure 1 is a detached 'view of the cover; Fig. 2, a detached view of a pin to be inserted through .the rim of the cover; Fig. 3, a perspective view of the neck of the jar, and Fig. 'etaperspective view of the jar with cover in place.

The cover A is pressed out of sheet-iron or other metal, provided with a flanged edge, I), and three perforations, G, into which the pins (1 are inserted and there riveted or otherwise securely fastened to the cover and at equal distances apart.

D is the neck of a jar on which are formed form, molded in the glass and having their top edges, (1, and endsff beveled, and are arranged at equal distances aparton the neck. This concavo-convex form of the ridges is especially adapted for the purpose for which it is constructed. As the ridges are exposed to considerable strain when the cover is being put on and after it is on, this form is especially desirable, as it gives the greatest amount of strength with the least material. To make the tops of the ridges straight or convex would make the ridges bungling, and would materially interfere with the molding of the jar. Y

F is a suitable gasket or packing, consisting of a rubber ring or other elastic packing, and resting upon the shoulder of the jar outside the neck.

To use the jar the rubber ring is first set on the shoulder. The cover is then placed over the mouth of the jar so that the pins (Z can be first passed between, and then immediately under the lugs or ridges c. The cover is fastened by turning the same either to the right or left, and is secured the tightest as the pins reach the lowest point or center of the ridges.

The advantages and superiorities of this form of jar and cover over the ordinary jars and covers now in use are: First, by making the cover out of sheet metal itmay be stamped out of a single piece of scrap-tin at a very little ex pense; second, by making the pins separate from the cover the stamping of the cover is rendered still more easy and inexpensive, as it may be made perfectly plain; third, the use of the p ins, which may be quite small in diameter,

permits the ridges on the ja to occupy nearly the whole periphery of the neck of the jar, so

that a slight turn either to the right or left beveling the ridges, as described, they may be molded on the jars-a result which cannot be attained with ridges not so beveled; and, lastly, the concave-convex form of the ridges, as above stated, allows the maximum strength IOO with the least amount of material and renders l separately formed inwardly-projeeting pins IO the molding more practicable. adapted to fit under said ridges, substantially Having thus described my invention, What I as and for the purpose herein specified. claim, and desire to secure by Letters Patent, In testimony whereof I affix my signature in is presence of two witnesses.

A molded glass fruit-jar the neck of which I JOSEPH L. DE STEIGER. is provided with concavo-convex ridges hav- Vitnesses:

I, I. E. MIDDLETOX,

ing one edge and the sides beveled, in combi- H. A. HALL.

nation with a sheet-metal cover provided with

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