US858902A - Tin can. - Google Patents

Description

, PATENT-n `-JULY 2, '1907, u. N. NGR'TON.

TIN GAN. l APPLICATION FILED 00'1-225y 1905.

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'new and useful i narra sirafrnsfifnfrn rioniirio N. NORTON7 OF Olin anni, iLLiNOis.. .-issioNoii To invitati, r. ,iiN'p,noii,i;is .ii QN COMPANY, ii eORPOaATIoN or NnwYoiiK.

TIN CAN.

To rillirliom iblinayjconcern:

Be it knoi'vntliat I, HoRATio-N; NORTON, a citizen ofthe United States, residiiigin Oak' Park, in the county of Cook and State of Illinoisjhave `invented certain finprovements' in Tin-Cans, of which thefollowing/is'a specification. i p i Y Tliis' invention relates --to .an improved sheetmetal can which is intendedlfoi' packing and shippingprovh, sions. paints and similar materials, whichrequire secure closing.

In the tin-cans hitherto in use having a shoulder portion at their upper ends it has been found-that the application of the cover thereto having a flange adapted to frictionally contact/with the shoulder portion, would not effect a closure sufiicient to prevent the vegress of of the same after having been so bent, Though such `irregularities may be extremely small and hardly ap parent to the naked eye, they were sufficient to prevent an efiicient closure. These disadvantages became especially apparent in cases where the pressure in the inside of the cans is considerable. g

My invention is intended to overcome these disadvantages and has for its object to provide a securely lclosed tin-can so that when the top is once applied there is neither an ingress of air nor an egress of material; and for this purpose the invention consists of an improved tin-can, comprising a Abody-portion having attached thereto a member with a central opening, a

`shoulder on said member, a bead on said member between the shoulder and the opening, a cover having a projecting edge, a flange on said cover adapted to fric tionally'contact with the shoulder of the member on the body-portion of the can, a groove in said cover corresponding to the bead of theme'mber, and anl elastic packing attached to the cover in said groove.

The invention consists further in providing an auxiliary cover having a bead near its-periphery, and interposing the same between the can-cover and the' can` body, and securing the elastic packing in the grooveportion of the bead of the auxiliary cover, the main cancover surrounding the auxiliary can-cover, the bead of the latter being engaged by the groove-portion of the bead of the main can-top.

The novel features comprising my invention will be fully described hereinafter and finally pointed out in the claims.

In the accompanying drawings, Figure l represents a perspective view of `my improved tincai1, Fig. 2 a

` Specification of LettersPat'ent.' `J 5 i 4iimiimiimifiiaimittags,1905. sentira. r284,210

i interieur v cover and showing anaiixiliary cover, esp

`as effective as intended, owing to irregularities in Fig. f3 shows a vert ,cover remove, ifroin'the l 4 sliowsylay; vertical een" of in Aimproved ti'nc n.0 t1. n ih. i tuffa! U .y1

aving applied I,1ere o Il 3 e. i www i" i'ixur: i in .i e l ,ed tor closing in vaciiu andE igfp s ws ghe olivier',

. fr "a in y i i sa; the auxiliary cover, i r of flieilifnbody in position prio ng' o dse' 'pfff s Similar letters/ Coriefsion'dingJ parts in the different figures of the drawings.l

Referring tb th'e drawings, A represents my improved tin-can, the upper end of which has secured thereto amember B, having a central opening O, and consisting -of a downwardly bent portion b, secured to the canbody,a downwardly extending inwardly inclined part b1, and an upwardly extending substantially vertical shoulder C, having at its upper end an annular bead D. This is the preferable form. of can in which the meinber B is provided with a downwardly extending iii- Wardly inclined part b1, as shown in the drawings. This part b, may however, be either horizontal or up- Wardly inclined.

The cover G is formed of one piece and so shapedas to form an annular bead F near its periphery df the same diameter and cross-sectional curvature as the bead D of the member B of the can-body. .The material forming the cover is bent back on itself at the periph ery, so as to form a projecting edge M intended to facilitate the removing of the cover, and the remaining portion of the material is bent to forma flange E, sub

'stantially vertical and of a diameter to frietionally contact with the shoulder C so that by said frictional Contact the cover is held in place on the can-body. When the cover is so applied, the bead D of the can-body engages the inner or groove portion of the 9() bead F of the cover, the result of such engagement being to form a Closure through which no substance, gas# eous or material, is intended to pass. However, it has been found that such engagement was not at all times grooves of the bead of the can-cover, and may be of' any suitable material not influenced by the contents of the can.`

Wliencanning materials and closing the cans under vacuum lan auxiliary cover R is provided which is of` diskiorm, having a bead Sfnear its, periphery, and of the same diameterand cross-sectional curvature a's'the 'bead 'of the body-portion of the can. `'In this case the elasticpacking H is attachedto the grooved portion of the bead Vof the auxiliary cover and servesto rest on the bead of the body-portion'of the-can, and lthereby insures a perfect sealing. Witlrthey packing in. position between the can-body and auxiliary cover, the

v main-cover is then applied so as to cause the flange E.

of the same, to be in rictional contact with the shoulder C of the body-portion of the can, whereupon the bead VS of the auxiliary cover R-will engage the inner 'part of the bead D o the main-cover, by which arrange- -nient aseurelyblosed can is provided. 4

The .use of my improvedl can insures the safe shipment and preservation o materials contained therein, this result being attained by a means simple, not cxpensive and efiicient.

' Having thus described my invention, I claim as new and desire to secure by Letters Patent:

An'impr'oved tin-can, comprising a body-portion, a member secured thereto having n c entral opening, a shoulder on said member, a bead on said member between the shoulder a'nd the opening, an auxiliary cover, n bead ori/said auxilial'y cover havinga groove, correspondingnto the bend of HonA'rio N., Noiz'roN.

Witnesses (2.113,. GOSPEL,

'J'. Summum.

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