US1578555A

US1578555A - Sheet-metal can

Info

Publication number: US1578555A
Application number: US687713A
Authority: US
Inventors: Isaac E Sexton
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-01-22
Filing date: 1924-01-22
Publication date: 1926-03-30
Anticipated expiration: 1943-03-30

Description

March 30 '1926.

l. E. SEXTON SHEET METALICAN Filed Jan. 22,

Cans, of which bodying the invention. j

' closed for shipment and'stora'ge.

certain improvements in the construction of 'the open end portionoi2 the can body,-'aiid the cover is adapted to be quickly and secure' p may V be rele'a tion.

before the cover is locked..

fthe same parts in all thefigures.

fone end by a suitable bottom (not shown), fandjo'pen at the opposite end. Spacedbelow W; et

VPatented Mar. 30,

" UNITED s'TATEESl IsAAoE. snxioiv, 'osvrwrivo''rins'rzrir,l M'AssAoirusEiTrs.

sirenas-METAL' CAN.

Application fusa January 22,v 1924. serial misant/'13.) v

T 0 all whom 'it 'muy .concertar BeI it known that I, ISAAC ErSriX'romvaj,

citizen'of the UnitedStates; residing atWinchester, in the ceuntyof liiddleseXv and tate of lvassa'chusetts, have invented new and usei'r'ull V'inprovements in rSheet-Metal the followinfis a specification. e L.. V v e y This invent-ien relates to cylindrical sheet metal shipping-cans adapted tocontain liquids,sucli as liquid paint, and to be tightljY The object of the invention is to yprovidey tliecover which closes said mouth, whereby ly locked to the open end portion, without the formation of injurious angles or cor-ners oirsaid end portion, and whereby -the cover sed by a simplefpryiiig opera-1 attain this object byl the improvements hereinafter described and claimed,

Gf the accompanying drawings forming afpart of' this speciiicat-ionf- 'Figure 1 is a top pian view of a' canem- Figure 2 is a section on line 2 2 of Fig* urel. Y f w 4lliligure 3 isa fragmentary section on'A-La larger scale, showing a portion of thejcan body without the cover. Y'

Figure 4 isa fragmentary section'` showing portions of the assembled body and cover,

Figure 5, is a fragmentary perspectiveview,A showing the portions shown by Figure e, the cover being locked. Y .l v

Figure 6 is a section on line 6'-6 of Fig@V ure 5. Figure V7 is a view `similar to Figure 4 showing the can body and cover provider with curled edges. i

Figure 8 is a View similar to Figure 7, showing the cover lockedto Ithe body.

-The same reference characters lindicate 1n' the drawings,'12l represents the cylin-V drical body of Va sheet metal can,l closed at the open end is an, annular cover seat 13.y projecting inward from the internal surface lof' the bodyand preferably integral thereVV iiithe seat being a. doubled annularange,

f'having a continuous upper edge .or "end, and'V Vadapted to jbend the upper end lot the curb the viia-nge 18,' andtheir` lower'portionsbear f ongsaid edge 'and constitute` stops, holding ing thefl cover to thebody. The ).vidthj orf Vrenders them sojflexiblethat;` they may bei. p .easily 'displaced bythe prying action of *one side' otywhiclffaces upward asvshown'.

The portion-14e oif'the .body'above' said seat, constitutesan annular cylindrical curb, f

adaptedat itsfupper portion to be bent inwardlyjto `torni inwardly projecting inclined bosses l5, oi? which there niaiyrbetwo or more, 'four being shown' by Figure' 1.A The bosses are spaced 'above the! seatf 13, and overhang the coverseat. A. Fi'aclrboss presents a' rounded iuiiersurface which" is inclined f inward and upward from the inner side ot -Kthe curb. 16 represents a Vcircula-r cover hav-` Y 7ing an annular seating portion oiiflzoneyll l70 ccneriiiing closely totheseat 18 anda marginal upwardly', "'proyecting annular "flange 18,V conforming tothe internal Asurface ofthe curbl.A vf the vHangs yis such that-when its upper f ,edger l Ais engaged by the bosses, -vtheseating portionl :17 iskk pressed closely4 against theseat 13, soJOf" that aV practically iiqiiid-tightjoi'nt is formed between theseating portionandtliefseat:

L' .The bossesiiiclude the upper vedge orend of the 1 curb,- and provide inwardly'curved portions, fwitliout yinterrupting the ,con

",.tinuity ofvitliejsaid `upperedge or `end,1 so that there arei no l sharp' corners or: angles `liableto ingure .thefhands."

" The cover may be released by .10Q`

ended prying toolfor lever 20, such as-ar` *screw-driver inserted between a boss `l5 and `the upper edge' of the :flange 18,'the` latter .Y constituting a' vfulcruml on which" the lever is i swung outward, to force the. bos; outwardy from its operative position.` This operaclination'vof the inner sides offtliejbosses A --Iprepferkto form in theA coverean angular loe tion, repeated attwo or ymore or the bosses, w l. vpermits vthe rem'oval'of the cover. The in' side of' this groove forminga vslionlder227 lioriningthe` bosses.

wliicli bears onthe inner edge of tli'eseat 13,' and increases ltl'ie area of the Joint. The

f vgroove stitfe'ns'tlie cover-and inininiizes `lia"- Y bility 'of the indentation thereof by'leXter-v` nal pressure.

Tlie upper edge o-'tlie curb le niay: lia'vev upperr'portionof tlie curb projecting above a bead 2,3, formed by curling-the edge out` wardand downward. yThe upper edge of y ytlie flangelS inay diave a correspond-ing 'bead ,l orined-by curling i-t inward and downward,

as indicatedatQ (fFigureS). The out;

Vwardly projecting bead', niay be bent inward-ly at intervals by the operation ,of The portions or' the bead 'between tlie bosses constitute a circuniiferential ridge wliieli` cooperates witli` a 'A ridge 25Aat tlie lower 4end4 of the body, when tlie lat-terj'is'being rolled A-on -a floor. The inwardlyprojecting b ea'd y2li facilitates vtlie enindicated by Figure 8.

`As shown Vby Figures which are sliorteitlian the 'bosses '15,' and forni openings orfpoclets for the reception oin vthe end ota prying tool for lever'QO, the npperedges of lsaid portions forming fulcruinslfor the lever.y V4The seat flis V'preterably inclined, to forin, with the curb, la gut- 'terad'apted-to'liold Ia liquid joint-:sealing f compositionfQ?, as sliowii by Figure 3.

l Iclainiz L Y 0 i 1. A-cancornpiisi'ng cylindrical sheet inet-al'bodymliaving an inwardly projecting covervseatyzan l'end po'rtionofv the 'bodyiproland @,ftlie fla-nge 1'8 vmay have inwardly offset 4portions :26,

.spending portion l ofV tlieA cover Aand V`tingitto lbe(raised'jroin.tlie seat. Y 2. A canas specified by claim -'1,tlie cover vflange being; provided witlrinwardly offset vpockets with wli-icli-tlie saidrbosses coincide', each pocket forming afulcruin spaced 'in-V ward vfrom vthe ,corresponding bossY andV perjecting above tlie seat and yforming a flexible v continuous cylindrical annu-lar cuib,tlie uping an annular seating portion formed to bear ontlie seat, and a marginal upwardly4 projecting annular cylindricalr flange bear- .on :the rlower portion of the curb, tlie tlie cover ilange, and aplurality s ofinwardly projecting Harige-confining bosses formed by/inwardjly bending-the :projecting upper Y yportion of' the curb, including-l tlie upper edges thereof; Aafter the coveris' deposited lon tbe. seat, said V*bosses having inclined inner f si. des overli anging the cover flange', the lower portions of said inclined sidesV engaging tlie upper edgefoftlie vcover flange to coniine tlie cover on the seat, jtlie inclinationo said sides rendering the bosses flexible and perinitting lsi prying lever 'inserted.'*betweenftlie`A cover yiiangeandthe boss', and fuleruined on the flange, to exert outward pressure on the boss and bend.itsinclined -side and upper ed-ge Y outward, tlius releasing the correy initting` tlieiinsertion of aprying lever be- Y tween the boss and the cover flange.

, `In testimony whereof 1.11am lvfxed my signature. y K y ISAAGEKISEXTQN-