US2385924A - Glass-lined containers for corrosive substances - Google Patents

Description

3 Shees-Sheet l gmc/Mov Tm 3 y. 7 y l Ir/u L u d w.. Imi InIIl |||HH..|||||||. |l|I|IH..i|IIIIIH HMH ||IH HmuumIbH, IIrH UNH ..I.. |Iu|| ILrIIIIIImHHlIH ...im o 0 mw f d un l L5 Z f mmVIIIIIIIIIIIIAHHHHHIIIIUH II. IIIIIIIIIIHHIIIIIIWIII .INTI I I III I IIII IIII.. II III I Oct. 2, 1945. -P. E. KNUDsi-:N

GLASS-mum CONTAINERS FOR co'RRosIvE suBsTANcEs Filed oct. 19, 194:5

I I I I I I I I I I I I I I I I I I I o u n u c o o* co oo wIlIlILIIIIIIIIIHHUIIIIIIPIIIIHINIIIIIILIIIIIIIIIIIIIMIIIIII- r1 I n I I Oct. 2, 1945. P. E. KNUDsEN GLASS-LINED .CONTAINERS FOR CORROSIYE SUBSTANCES 3 Sheets-Sheet 2 Filed voct. 19, 1945 Y* zo oct. 2, 1945. R E KNUDSEN 2385324 GLASS-LINED CNTAINERS FOR CORROSIV SUBSTANCES Filed oct.` 19, 1945 l f :s sheets-sheet s Penecy E KNaDsE/v @M 6me@ Patented Oct. 2, 1945 UNITED O'FFICE N i nass-Linen.. ooN'iiAImsnsl non I .CQBROSWE SUBSTIANCES Percy ni Knudsen;rinsbmgh'ra., assigner tov Pittsburgh. Plate -Grlass Company, Alleghenyv County, Pa., aeorporation of Pennsylvania Appiicaunocteber"19, 1943;*.seiia1'rrqijstavate i somme. lazos-Lal The present invention relates to the construction of containers for liquids, e. g.,'.corrosive subfstances, such as pickling acids, cleaning solutions, plating baths, or for other materials ofI like nature, and it has particular relationto the provision of containers of the foregoingtype inwhieh a shell of wood, metal; concrete,V or the like is lined by relatively heavy plates of glaskspr'ovid;

ing 'a surface which is highly resistantto at- It has heretofore been proposed tc'fornrcontainers for various types of acidsr and solutions by setting plates of glass; preferably" tempered, inside a container in somewhat spaced" relation with respect to the walls `ofthe containerfin order to providev a, lining and then to' fill the space between the plates and the shell'with ag-resist"- ant plastic substance,` such as highA melting asphalt or plasticzed sulfur, pouredin While Amolten and'allowed to settoasolid state.

The present `invention contemplate'sl'a's one feature the provision of sight holes-'orl inspection windows for such eontainersinv which Athe continuousY plates oi glass constitutingthe'lining function as a transparent closure medium permitting the free passage of light into the contents .Y

ofthe tank. y As a further feature ,of the invention involves the provision of adjustment screws operable exi.

teriorly of the' tank for securing. the glass plates constituting the tank lining lin spaced relation together asinicted at lz in Fig. a to provide `a., cornerqstructure., The corners areV further reinforced andfsecureditogether by vertical. barsI .I3 ofA Wood secured to tzheboards II bymeans of, .sorews I4., The sidewalls `may also'be rein- ,forced bymeans ofk horizontal rods or bolts IS and verticalholts l1. Which,f.at` their extremities, are provided with nuts I8 countersunk as indi- -cated at t9' ritol the wood. The nuts of the hori- .zontalebolts are.coveredv by the'bars I3, while they upper nutsjoffthe vertical/'rods are covered .by coping bars' 2,0 .-1, Y

Y. The bottomofthe'shell alsoformed of wooden [planks` 2l whic';hat.tl1eir` extremities, rest upon bars 22 of wood or the like. The lowernuts ofA the bolts -ll arecountersunk in these latter bars. .The lining. ofthe tank, asvshown in Fig. 3, in- .cludesthin platesrlZB of glass bearing against the innersurface of the wooden shelland plates 24 A-s`1` a`c'e d therefrom. and preferably of relatively .heavyv plate glass, which should be tempered in orcler to render it resistantto heat shook.V The vertical edgesfo'f the latterv plates are beveled as indicatedvatlkland their-upper edges are r,secured in 4groovesin 'copinglbars 2l)` so that they can not 'fall inwardly. The, spacel betweenvthe thin plates andthe heavyplatesis filled with a mastic or plastic composition 26, preferably of high melting asphalt for, alplastcized,suli'unzwhich in general ishighly resistant ,to chemical. attack and also serves to transmitrstresses froml the lining plates theollter Shellra's-.Well as Sealing all joints be- 'tWen plates. l

Itisto be observedthat the plates ,23"ahd 24 Qarefheld virl suitably spacedielation 'withv respect ftq each' othe1. bymeansfof,roundv pointed set screwsfl'l, which are threaded'through nuts 28,

jcountersunk in openings 29pm the innerface of` parts throughout and in which Fig; 1 .isan ele'- vational view illustratingk a tankconstructed in j` substantially upon the line III-III of Fig. 11" and 570 illustrating the construction of a.corner -of the In the embodiment of the. inventionshown'a wooden shell l0 includes side walls of relatively heavy planks or boards Il, which are rabbeted fthewall's vofthe shell.. 'Said screws include'indentations, 21a for a screw-driver :by means of 'which'screwsmaybe adjusted to obtain accurate `'spacing',of the plates and, to hold the plates kfrom rattling"duringor prio'rto the operation of pouringfthe' heated asphalt 26. The rearextremities offthe 'set screws 'may beprotected byvmeans of 'plugs A 3U of Awood or the like, and the points may havejcapsna offleadto protect them.

' "j'vIhve lining of.` the vhottomportion of the tank may mcludesli'ghtlysloped edge sections 3l, that compiisesplatesland 33, which rest uponbev- .eled orwedge-shaped blocks or bars 34 uponthe bottoni1:)carhcls"2ly andarespaced by small sec- Ylltio'ns 3,5 of Aglass.- The space between the plates jailed wim a mastic introduced while. het and '.tlu'i'd` in' a" casting'operation. The bottom also in order to provide spacers.

that the body of the thermosetting, e. g.,-Bake-r- 1,5-

vfurther toy secure the frame to the `ledges'oil the .walls of the Vshelland,functionrfurther to reinfofhigh melting ipoint, is 'fused at, a temperature Vat'which it fis'highly fluid andy isthenpoured includes a horizontal central section 36 havng a drain opening 31 formed therein, which opening registers with a drain structure 38.

An inspection window in the tank constructed invaccordance with the provision of the invention 5 includes an opening 4I, whichris but a small section of the tank wall, formed in the tank at an appropriate meint, ibut which -=doe s not extend through.v the' lining' -plate 24|,v Theopening is shown as being rectangular with a horizontal 10' lower edge and is surrounded by a frame 4,2- 1;.

of wood or the like. Wooden barsrnaybe in.- .L serted between the inner and outersheetsof glass It is to be noted lite, plastic i4 is disposed,- about the margins of the spacer members 43, in order'itoprevent'theff.

possibility of molten asphalt. from contactingwithZ the wood of the members. This resin is applied while still plastic and adhesive. It is baked to 20 thermoset stage, after the spacers ,and the plates are assembled.

` jAs shown in dotted line Yin Fig. 1*,'th'e spacer bars VI3 constitute attened isosceles triangles se l/thatthe lower edge ofthe bar along'thelower g5 edge ofv the opening is` sloped upwardly approxiif mately from its mid portion respectivelyjtof the right vand left offthe opening whereby to admit of the escape Lofi'mprisoned air laterally and up'- wardlyv at opposite ends 'of the bar fromunder A39 the lower edges of the bars as, thernoltenV plastic L is poured into kthe space between the outer shell and the inner lining. 4Screws 46 secure the Vframe to the spacer'bars 43 and also screws `4'|,function opening., Y.' v 1 Under some conditions therermightbe ,a poss1- -bility of breakage lof the liner plate l2li, which ,which is secured in place Vto horizontal reinforc.- 45

dngbar 5l and Vertical ,bars 52 by means, of@

Vscrews 53. These reinforcing bai-s arelheldvin Vplace by means ,ofjscrews 54 ythreaded into the force the` edges of, the opening. As bestshown in Fig. 1the horizontal `bars 5I are of such length that ,they .caribe V'mortised into, the 'vertical corner bars I3. The vertical bars 52 are also mortised into barsSLp, Y

The construction of thev tankherein shown is substantially. self-evident."l ,The Wooden shell is"" rstbuilt up., after which vthe thin' plates 23 ,are

.disposed in theshell in contact'with ythe wood.

The heavy inner plates '24 are disposed in'position and the yset'screws 2'|l arethen' adjusted to G0 obtain the desired spacing and to insure vcontact 4between the face of the glass plates` and the points and screws. The plastic, 'such asvas'phalt into'position. It serves to bond the glass plates i in posltionand to, insure uniform bearing surface for the backsof the glass 'plates 2,4; Sometimes the wooden shell I0 maybe repla'cedby a shell of ironorconcrete. Thetankmaybe round, 70

. square, or have any numberV of sides. r,

As many observation V windows as may desired ,may be, builtV` into a tank. l.For example,y a sec,-

ond'one 55 may be inserted opposite the first and @Per v ma .be ,page ,backof'i, @eine Vfirst-mentioned bars. l v l 75 ,1, f

observation. In some cases quantitative end points in chemical reactions can thus be observed with considerable accuracy.

The forms of the invention herein shown and Vdescribed are to be'considered merely as by way What I claim is :v

1.y container structure comprising an outer vrL,rreinlfrircingfjshell and an inner lining of glass plates, the plates of the lining being spaced from `the,shell, said outershell having an inspection opening formed therein, the margins of the openingfbeingfclosedby a frame, the inner edges of -,which bearagainsththe outer Vface of the glass lining and a packing of impermeable plastic in lspaced .inwardly fromllthe, lshell; the Y lining being spaced from thesurfaceof the'zshe'll, the space Y between the lining and the shell beine filled, with fusiblev mastic, the,` mastic and 'fthe' shell being `formed with an inspection'. openingy therein; the lining of glass lplates being continuous over the opening, and a safety covering of glass sealed the lining.

Vink the. opening yand being .spaced .outwardly-from .v 3. .A vcentaine ,structure comprisingan outer reinforcingshell. and a lining of1 glass ,plates spaced therefrom, said outer shelllhavingafpair ,of inspection openings formed thereingupon 'opposed sides thereof, theymarginsof the, openings being closedby frames and the space between the walls. ofthe shell andthe glass plates being )filledWlll'lAlvllaslic;r f fy' ,1"51

.Y A container structure comprising ang-outer ,reinforcing shell andA a. liningofv glass plates spaced ,inwardly from'vthe shell, Vsaid outer shell having an inspection. opening 'formed therein with a-horizontal lower edge, the margins of theopen'- ing being closed by a frame the-innery edges of whichbear against ,the outer'. faces, ofv the glass lining and a packing of impermeablefusiblei mastic between, the I lining4v and" the' shell and spacer .elements comprising barsV disposed .between the shell and the 'glassjplatesyalong the edgesiof `the Openingfthe baralongfthe` lower. edgefbeing of the lower edge oftheV bar along 'the-lower edgeofy the opening beingv sloped upwardly 'ap-- proximately from its midportion respectively `to the right'and'left'lof the'opening' to: facilitate the escapeof bubbles duringbpourin'goperations `in the introduction'ofz-the mastic into'thespa'ce.

Y 5. A, container vstructure?comprising an f outer reinforcing shell of planks, a liningvof glass plates therein, f said outer* shell lbeing formed with a square ,opening .with two'` edges in lhorizontal positionand two vertical edges, the Vmargins of the opening being closed bya frame, the inner edges bars upontheshell onvthe uts'ide'thereof'ani reinforcing 'bars for the horizontal edges Aofthe opening vanclahaving Ythe Vends secured*to-"said `corner bars vand verticalbars reinforcing ivertica'l edgesof the opening and being securedtofthe

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