US1630826A - Gas-tight cable support for tanks - Google Patents

Description

Y i1 ,630 ay 31 1921 H; BROOKS GAS TIGHT CABLE SUPPORT FOR TANKS Filed Nov. 15. 1926 vwentot Gum Aug v Patented May 31', 1927.;

UNITED STATES PATENT OF 8mm 31mm GILES, u L Assume re saloons mam 1 ING GORPOBA'IION, F ANGELES, CALIFORNIA, A. CORPORATION. 01' CALL.

FOBNIA.

ens-ric r'rr' .sur'ronr FOR- m ,1

I Application fled Revenue- '15, im. serial-in. 148,588. M

My invention relates to improvements n gas-tight cable supports. for-tanks, and. it more especially consists of the features point- I ed out in the annexed claims. I. 6 The purpose of my invention is to lproyide means for passinga swing pipe ca 1e into a gas-ti ht tank so as to ,seal the opening' against eakage ofgas from the tank; thatis simple in construction; that does not have 0 a pro3ecting box seated on top of the tank;

that further provides easily accessible for re-sealing the case. I

With these and other ends in view, I 11- lustrate in the accompanying .drawing such instances of adaptation as-will disclose the broad underlying features of my nvention without limiting myselfto the. tails shown thereon and describe herein. Y Figure. 1 is a side elevationof a case fi 'attached to a flatroof. Fig. 2 is a rearv elevation-of Fig. 1. Fig. 3 is ,a' side elevation in section of Fig. 4 is a side elevation of'a case adapted to a conicalroof.

Fig. 5 is a top plan v ewof Fig. 1. I I In practically carrying out my mvention I may use any desired alternatives of con struction which the" exi encies of various 18 into the lower sheave casing 24; around service conditions may. emand. I

In attac my gas-ti ht cable supporting case to a at top tan '1 or to a' conical top 3, an opening 30 is made of the required sizes. Around'this opening a flange 4 is securedl' On top ot-this flange 4, I secure my gas-tight sheave caseoi'i flat-roofs by me n ofa b flange 5, aiid for conical roofs a similar I ange 6.

The onlypart of .my' cablelsup portin 4o casethat pro ects above thereof ofa .ta 29 is the standard 7 i i-the'fcase of a flat roof, and a standard 8'- in the case of a com- .cal roof. These standardsare'respectively braced to the 'basese and 6 bythe ribs 11 and 12. Each ofthe standards 7' and 8 I have side flanges 1'5 and a top or cover flan 'e 16, Between the flanges, '15 andxbeneathtfie cover flange 16 the upper sheave or de 13 is plkced so as rotate onits sp rdle on the/under side of the base -5 'orjthe base 6 a support 9 for the flat roof type and, a' similar support 10 adapted for conical; r'oofsmay be formed integrally with theirference of the tank...

T cable of the casing 24 and rises in the t I and 317. or 18 to approximately" theflevel ioo' respective bases 5 and 6. The supports 9 and 10 have a recess cast thereinin which the intermediate sheave 25 is located. This "sheayerotates on its axis 26. To the bottom end of the projections 9 and 10, a pipe 19 is attached. Itcommunicates directly with 00 the sheave recess in the 'saidsu ports. Its lower end is welded or otherwise attached to a horizontal tube plate20. I Beneath the tube plate 20 an elmlo'sed casing 24. isjsecured in which the lower sheave or a'suit- 06 able guide 21 is, placed. This sheave rotates von its spindle or axis 22 whichhasbe'ar ing inthe self sealing bushings 23. In the.

case of a'flat roof a tube 17 reaches from; I

thesu p gort 7 to .the tube plate 20, to which '10- it may e weldedor, otherwise secured; I In t the case of a conical roof a shorter tube'18- is used because of the slope of the-"roof.

. I'tis of course understood that my sheave supporting case isalso adaptable to other types of tank roofs. When flat tank more are used a water seal: flange 2, shown in Fig. 1, is placed around the entire top circum- A cable 28 is attached to any desired of la placed near the bottom "of 5 tank (not shown), which cable passes over the upper sheave down through tubes 17 or one half of'.theclower'sheave 21 and, up through the tube 19 overtheintermediate. sheave'25, or over any formiof alternative ide, and thence to the swing ipe locate within the tank (not'shown). rom

this. it will readily be seen that as the cable so is wound or unwound from its windlassthe pipe is correspondingly raised or lowered. I

g In order that the and out of I the cable 28 will not lowe escape of any accumulated gases within the tank, Lfill the lower sheave casing 24 with oil or any'othe'r sealing mediumwhich overruns the ca ac'ity shown'by dotted line 27 on Fig. 3. EThe" sealing ent may be introduced through an opening ormed at the top of the PIOjQOtiOIlS' 7 or 8, which opemng me be closed. by any de'siredplug o r cap 31. t will be seenthat the pressure of the .sealin medium in the 24 and its attach tubeswillcoinpl te y prevent the of gas from the -tank. 1 By placing the seal entirely on 18 are respectivel connected to the bases 5.

and 6 in a as-tig t manner, and since these bases are a so attached to the flanges 4 in a gas-tightvmanner there is no chance for any of h g hin the tank to escape;

What I claim is: I

v 1. In cable supports for tanks, a tank structure havin an opening therethrough,

" sure, a sealing medium in such passage,

a closure for t e opening, a.- cable sheave mounted on the closure outside of. the tank, a pluralityof sheaves attached to the closure on the inside of the tank, an enclosed casing for the lowermost interior sheave, a

plurality of vertical passageways connected with the casing, a sealing medium in the casing and extending into the passageways, and a movable cable in en a ement with the several sheaves one ofsai s eaves directing the cable throughthe sealing medium.

2.'In cable supports for tanks, a tank structure having an opening therethrough,

a, closure for the o ening, a tortuous pasclosure on the outsi sage within the tan connected to the clocable guiding means surrounded by the sealing medium, 'an auxiliary cable guide supported by the closure on'the inside of t e tank, another cable (guide attached to the e of the tank, and a movable" cable adapted ,to engage theseveral ides and simultaneousl to be held in coningthrough t e opening, and a li uid seal closure for the opening admitting t e cable.

tact with the sealing me 'ium. p 3. In cable supports, a suitable tank structure having an opening therethrou'gh, a gastight closuretherefor, a plurality of sheaves, supported by the; closure-within the tank,

another sheave supportedby the closure on:

the outside ofLthe tank, an enclosed casing for one of the interior sheaves, separate pas sagewa s leading from the casing toward a gair o cooperating sheaves, a sealing memm in the cas ng and the assageways to prevent escape-of gas from t e tank, and a a cable movable in both directions through the sealing medium and in engagement with the several sheaves.

' 4. Incable supports, a suitable tank structure having an opening therethrough, a clo- T sure for theopemng, a liquid sealed assageinside y way through the closure positione of the tank, a cable movable into and out of the tank through the sealed passa eway, and coo crating guideways for the cable inside an outside of the tank.

-5. -In gas-tight cable supports for tanks, a tank structure having anopening therethrough, a liquid sealed gas-tight closure for the-opening, a passageway through the closure, means positioned within the tank adapted to automatically maintain such passageway gas-tight, a cable movable throu h such assageway, and means attache to the c osure for. guidin the cable on the outside and the inside of t e tank.

6. In cable supports, a gas-tight tank havmg an opening in its structure, a unitary closure for the o ening' com rising cable ides on both si es of the c osure, and a iquld sealed gas-tight passa eway through the same adapted to receive t e cable.

7. In cable supports, a gas-tight tank havmg an opemn in its structure, a cable passtherethrough in ajg as-ti ht manner.

- In testimony whereof aflix my signature.

' STEP-HEN H. BRooKs.

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