US521921A

US521921A - Fruit-can

Info

Publication number: US521921A
Authority: US
Publication date: 1894-06-26
Anticipated expiration: 1911-06-26

Description

{Nn Mod`e1.)

C. SCHIFFERLY. FRUIT GAN No. 521,921. Patented June 26,1894.

- UNITED STATES PATENT OFFICE.

CONRAD SOHIFFERLY, OF FORT WAY-NE, INDIANA.v

FRUIT-CAN.

SPECIFICATION forming part of Letters Patent No. 521,921, dated .Tune 26, 1894.

Application filed March 18, 1893. Renewed April 25, 1894. Serial No. 509,081. (No model.)

, To @ZZ whom t may concern:

and has for its object to provide a cap that will both externally-and internally act as a closure toprevent the ingress of air or the egressof the gases or vapors within the jar, and at the same time provide convenient means for applying an elastic gasket.

With these and other objects `in view the invention consists of the construction and arrangement of the parts thereof, as will be hereinafter more fully described and claimed.

In the drawings: Figure l is a perspective view of a can or jar, showing the improved cap in connection therewith. Fig. 2 is a transverse vertical section of the device as shown in Fig. l. Fig. 3 is a detail 'perspective view of the jar-cap detached and showing'the gasket separated therefrom.

Similar numerals of reference indicate corresponding parts in the several figures of the drawings.

Referring to the drawings, the numeral 1 designates a jar of suitable style and'form, having an upper screwthreaded rim 2, which is arranged to receive a cap 3 having its edge formed in such a manner that it may be conveniently grasped on the exterior for lremoving the same, andon the interior proter, passes into the said throat or mouth and' acts as a closure to the same. The shoulder formed on the said stopper of course'decreases the diametrical extent of the latterat the point where it is located, and is arranged to receive a gasket 6, having a central opening 7, of less diainetrical extent than the lower part of the said stopper, thereby necessitating an expansion of the said gasket in order to adjust the same over the said stopper for the purpose of itting against the reduced part of the latter and bearing on the shoulder 5. This arrangement rmly holds the said gasket in connection with the cap and so positions it as to cause it to bear directly on the top edge of the rim to form an air-tight joint, and also provides means for removing the gasket simultaneously with the removal of the said cap. f

It will be understood that should the gasket become wornl or unfit for use it can be readily replaced by another, thereby at all times providing to sustain an air-tight joint.

The upper termination of the rim is broad or wide and approximates the distance be-v tween the stopper and the adjacent edge of the cap to form a'close tting and to increase the gasket bearing-surface.

Changes in the form, proportion, and the minor details of construction may be resorted an exteiorly-threaded neck, of aremovable cap provided with a peripheraldepending interiorly-threaded rim and a central cylindrical integral stopper, the diameter of which is approximately equal to that of the throat of the jar or can and the sides of which are parallel with the same, said stopper being provided at its top with a reduced portion or neck forming a circumferential channel 8 and a shoulder 5 parallel with and contiguous to the under surface of the cap, and an elastic gasket arranged in contact with the under surface of the ca'p with its inner or smaller periphery fitted in said channel between'the shoulder 5 and the surface of the cap and having its outer periphery in contact with the inner surface of the rim of thecap, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CONRAD SOHIFFERLY.

Witnesses:

J AMES E. GRAHAM, MAUD GRAHAM.

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