US1242604A

US1242604A - Jar-cap.

Info

Publication number: US1242604A
Application number: US600815A
Authority: US
Inventors: Edward D Schmitt
Original assignee: AMERICAN PURE FOOD PROCESS Co
Current assignee: AMERICAN PURE FOOD PROCESS Co
Priority date: 1915-02-04
Filing date: 1915-02-04
Publication date: 1917-10-09
Anticipated expiration: 1934-10-09

Description

vi. D. SCHMITT.. IAB CAP PPLIC'I'IOI FILED FEB. M 1915.

Patented Oct. 9, 1917-.

UNITED STATES PATENT oEEIoE.

EDWARD D. SCHMITT, 0F BALTIMORE, MARYLAND, ASSIGN'OR, BY MESNE ASSIGN- MENTS, T0 THE AMERICAN PUBIEFOOD PROCESS COMPANY, OF BALTIMORE, MARY- mn'n, a concurren or DELAWARE.

'IAB-CAP.

Specification of Letters Patent.

Patented Oct. 9, 1917.

applicati@ mea February 4, 191s'. serial no. aoos.

To all whom it may concern:

Be it known that I, EDWAEDYD. SCHMITT, a citizen of the United States, residing at Baltimore and State of Maryland, have invented certain new and useful Inlilprovements in Jar-Caps, of which the fo owing is a specification.

This invention relates to improvements in jar caps, and more particularly to a cap especially adapted for milk jars or bottles, or bott es having comparatively large mouths.

Y cap which serves as the opening means, so

that the metal ofthe rim will be twisted apart, rather than torn. This is accomplished with a very slight force, making the cap readily removab e by hand.

A further object of the lnvention is to provide means whereby a portion of the cap which covers the closing member or disk, may be quickly brought into position toalbe grasped by the,hand in removing the se In m ap lication filed January 14 1915, Serial um r 2,147, series of 1915, show a cap quite similar in construction and mode ofsoperation, to the present ca but diering 1n certain essential and hlghly advantageous features, as will be described.

In the ca just referred to,l the opening dps partially across the closing disk, but is secured thereto only at itsl base, andfurthermore, is of such constructlon as will not prevent dust or foreign matter from accumulating upon the top ,of said disk,

whereas', in the present construction, this addedfeature'appears. The capis so constructed that any attempt to remove 1t for the purpose of refilling or adulteration, may

be readily detected.

In the drawings- Figure 1 is a perspective view of the top of ,a milk bottle, with the cap applied.

Fig. 2 is a similar view, showing the edge of the opening lever slightly raised to bring it above the inner edge of the securing rim to a position where it ma be readily grasped by hand, at the beginn g of the opening operation.

Fig. 3 is a similar view showing the central portion of the cap raised and occupyin the position where it has twisted the meta of the rim apart, between the base of the` opening, lever and the first two notches or cuts, and

Fig. 4 is a broken sectional view of a portion of the top of a lbottle and cap, showlng' the manner in which the outer of the opening lever and inner edgeo the securing rim mpinges slightly into the disk, when t e cap is applied.

Referring to the drawings, the numeral 1 designates the usual milk bottle, rovided with the usual annular bead 2, t e under side of which, in the present instance, serves as a locking shoulder or surface for the cap, which is applied to the jar by a suitable machine, and'crimped or indented into locking engagement with the shoulder. The numera 3 designates the ca which comprises a securing rim 4, forme with a flat upper portion 5 and a depending flange or skirt 6,

the lower edge of which is locked to the bottle. The cap is cut throu h to form a central openin lever 7, whic is integral with the rim at t e points a, and at the points b,

The securing rim is provided adjacent to'the points a, and outside thereof, with vtwo cuts 8, whichextend almost entirely across the u per` flat portion of the securing member.- hese cuts terminate 'ust short of the ends of two similar cuts made in the flange 6 of the cap, the lower ends of the cuts 9 terminating just short of the lower edge of said flange, thus leaving, between the cuts 8 land 9, a small amount of unbroken met-alc, and, between the lower ends of said cuts and the lower ed e of the cap, similarfunbroken parts d, t e metal between the parts being ada ted to be twisted apart with ease, by. t e peculiar leverage which is given in the'manner about to be described.4

The numeral 10 designates two ribs stamped upwardly in the opening lever 7, and extending some distance back into the opening lever, and a short distance on to the at portion of the securing rim. These ribs are for the purpose of stiiiening the metal of the opening lever adjacent to the cuts 8, so that when the said opening lever is raised it will not bend across the ribbed portion, but instead, will cause the opening force to be applied at the points a, so that the metal at this point is readily twisted a art. A further upward movement of t e lever twists the metal apart at the points c while still further movement twists the parts d apart, thus ermitting the securing rim to be removed:- rior'to thisoperation, the very slight connections b between the opening lever and the upper surface 5 of the rim have been broken.

NZormally, the central portion of the cap is iush with the inner ed ge of the rim, and in order to be able to raise this slightly above the rim, to be readily gripped by the hand, I rovide the openin lever with a central raised portion 11 an the opening lever is attached to the rim on two opposite sides. as shown at b. By pressing down upon this central portion, the edge of the openiig lever, beyond the points bzwill be fore slightly upward, as shown in Fig. 4, which obviously, faciliatates the gripping of the lever to start the opening operation. This central portion which is cambered upwardly, serves as a stifening means for that portion of the lever ad'acent to the inner ends of the ribs 10, so t at the whole lever is' sti'ened at the points necessary to bring about the twisting action in rupturing the parts et the metal necessary to be broken, to remove the cap.

The numeral 12 desi ates a disk, referably of cardboard or ot er compressi le Inaterial, which forms the closing member, an is adapted to make sealin ,contact between the securn rim and the lip of the bottle, as shown in 'g. 4.

In manufacture, thev tool for cutting the opening lever from the arm is so sha that two

short indenting points

13 and 14, are provided, on the inner edge of the rim, and the outer edge of the locking lever, respectively. These, in the a plication of the sealing pressure, are slight y indented into the disk 12, so as to prevent lateral movement of the central portion of the disk, thus holding it erfectly Hat, as shown in Fig. 4.

It will ge understood that the securing rim, and closing member are assembled, so that the whole cap, comprising the securing rim, opening lever, and disk, may be handled as a concrete article.

From the foregoing, it will be noted that the formation is such that the entire centrai portion of the cap is virtually closed, thus protecting the disk from dust or foreign matter, a thing very desirable and es' sential in handling milk.

The cap has `been described as being particularly adapted for use in connection' with milk bottles, but it will be understood that it may be employed in other connections, where it would be useful.

Having thus described my invention, what I claim is:

1. A closure for jars comprising a securing rim, formed with an upper fiat portion and a depending flange by which it may be secured to the locking shoulder of aejar, and a central portion filling the space within the rim and serving as an opening lever, and having narrow portions b integral with the rim at opposite sides, and also narrow portions c integral with the rim, at the base of said lever, the narrow side portions servin as points upon which a art of the centra portion may be rocked, 1n the opening operation, the rim of the closure being pro vided with spaced cuts on its upper iattened surface and extending partially thereacross, and also cuts on the flange whose upper ends terminate adjacent to the outer ends of the iirst mentioned cuts and means for stiil'ening the lever so that when said lever is lifted, it will be twisted apart Yat the sides and adjacent to the base of the lever, to le move the seal.

2. A bottle cap comprising a securing rim having a Bat upper surface and a depending flange by which latter it may be secured to a. locking surface' on the exterior of a `ar, and an opening lever filling the space witliin the rim and having narrow portions integral with the rim at opposite sides, and also h aving narrow portions integral with the rim, adjacent to the base of said lever, a raised central portion for stiifening the lever and also adapted to be manually depressed to throw one edge of the lever above the inner edge of the rim, for the purpose set forth, the rim being provided at its top adjacent to the base of the lever, with cuts extendin partially acro the flat portion thereo there being alsocuts in the fla whose upper ends terminate short of t e first mentioned cuts, stiiening ribs adjacent to the base of `the lever, whereby the rim and the adjacent portions of the lever are stiiened, so that when the lever is lifted, the points at the side of saidlever and also the points between the cuts, will be twisted apart to unlock the seal.

' In testimony whereof I ailix my signature in presence of two witn.

EDWARD D. SCHMITT.

Witnesses:

FRANCIS S. Mnermm, FRANK G. Bmnron.