US610897A - Fruit jar or can - Google Patents

Description

No. 6l0,897. Patented Sept. 20, I898. S. J. DUNKLEY. FRUIT JAB on CAN.

(Application filed Nov. 2, 1897.)

(No Model.)

W itnesses. I nventor.

Attorney.

TATE S llrrn FRUIT JAR OR CAN.

SPECIFICATION forming part of Letters Patent N o. 610,897, dated september 20, 1898.

Application filed November 2, 1897. Serial N01 657,204:- (No model.)

-T0 at whom it may concern.-

Beit known that I, SAMUEL J. DUNKLEY, a citizen of the United States, residing at the city of Kalamazoo, in the county of Kalamazoo and State of Michigan, have invented a certain new and useful Fruit Jar or Can, of which the following is a specification.

This invention relates to improvements in fruit jars or cans, and particularly to the fastening means of fruit-jar or can covers.

The object of this invention is to provide a simple and eflicient fastening for fruit-jar tops or covers which is neat in appearance and which does not prevent the packages from being properly stored or packed.

A further object is to provide an improved spring-fastening adapted to be snapped into position on the top of a fruit jar or can, in which the spring is so formed that it presents a double leverage upon the top to retain it firmly against its gasket.

Further objects will definitely appear in the detailed description.

I accomplish these objects of my invention by the devices and means described in the specification, definitely pointed out in the claims, and illustrated in the accompanying drawings, in whiol1- Figure 1 is a plan View of a fruit-jar with my improved fastening in position. Fig. 2 is a transverse detail sectional view on line 2 2 of Fig. 1. Fig. 3 is a side elevation of the spring-fastening removed from the can.

In the drawings similarletters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the drawings, A is theupper portion of a fruit can or jar. Around the top of the same is a heavy flange A, which is square-shouldered on its under side for the spring-fastener to engage the same and is also square-shouldered at the top to form a suitable seat for the gasket or can-rubber D. A cover B is provided for the same and is adapted to fit against the flange A to compress the gasket in place thereon.

The lower edge of the cover B is provided with a bead B, which presses firmlyinto the gasket to insure a tight joint. This, however, does not pertain particularly to my invention, but is found necessary to secure the best results. The cancover is flat or slightly beveled toward its periphery on top and is made convex toward the center. A spring clasp O for retaining the same is made of a strip of spring metal or other elastic material,which is bowed down slightly at the center 0 and extends straight out corresponding to the flat or beveled portion of the top of the can, then bent down, and terminates. abruptlyin a hook O",which engages under the flange A on the top of the can. The structure of this particular style of can-cover and spring secures the advantages of a double leverage. When the spring is put upon the top of the can and pressed down, the concave portion 0 presses against the concave port-ion of the cover, and when the pressure is continued toward the edge the portion toward the edge contacts with the cover and forms a lever backed up bythe full spring of the convex. portion until the hooks O snap under the flange. By this means, it will be noted, the full elasticity of the spring is secured and the spring holds from a comparatively short lever, which of course means greatly-increased stiffness of the spring. By this means the cover is held very tight.

From the construction of the can-top as the hook engages the square shoulder of the flange A the cover cannot be pulled off without breaking the fastening. The cover is removed by inserting any suitable instrument under the side of the spring and forcing the hook C out of engagement. The spring fits very closely the top side of the cover, and the cans are able to be massed and set one upon the other on shelves or stored away without difficulty. This,it is apparent, saves much packing material and much space.

The same contour of spring I have shown might be preserved with wire springs for engaging under the top of the flange. The present spring will be preferred because it leaves aflat surface for packing the cans away.

Other styles of gaskets thanthe rubber D might be used in this connection and for some purposes no gasket at all.

Having thus described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. The combination of the can A, with a flange A at the top with a square shoulder on its under side and a shoulder on its upper side to receive a gasket; a gasket D Y resting thereon a cover B for said can that is convex toward its center and adapted to fit on the top of the can; and a spring-fastener 0 e011- cave at the center with a straight portion toward each end and bended down terminating in a hook S at each end to engage under the square-shouldered flange at the top of the can for the purpose specified.

2. In the combination of a jar or can having suitable square shoulder or shoulders at the top for engagement of hooks; the cancover which is convex at the center with a fiat portion toward the periphery and a spring convex toward its center and folded to conform to the top of the can and terminating in hooks adapted to engage the shoulders or shoulder on the upper part of the jar or can for the purpose specified.

In witness whereof I have hereunto set my hand and seal in the presence of two witnesses.

SAMUEL J. DUN KLEY. [L. s]

WVitnesses: I

LELA M. BROWN, 0131s A. EARL.

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