US1551204A - Automatic release for safety valves - Google Patents

Description

islgrlql;ein#-or seis FitANcrsco", CALIFORNIA."

; *This i'ventionrelates particularlyfto ameliani'smfor`l automatically :Closing a @difese @were flug be In;

mbin ation tiff-bin imprvgment 'is' adapted'. ingr; ni (Il v `ixiijiroiutafrit: annesse Fon sammlerVALVES.l

tto give the reqnired slow rotative speed ,and 55 Which is connectedA Withthepropeller shaft; The high ei'ciency of the ,turbine has 'been distrib'uted tothe rpropeller shaft by-accd# Vrately cutting the meshing helical teeth 011.

both pinionand gearto a calibratedv neness 00 to'ins'ure smooth action and'l an even ',d'is- ,Y tributlon ofstresses Theprocessfof. outf ting and milling these gears is necessarily aslow, tedious and expensive one and 'it-iis ship orpower? funitout of'fcoinmission:

submittedfherevvith ioontemplatesqa mechas, nism .and .structure which willfautomaticilly stop the turbine reduction @gears fromafoper.- ating. should adefect occur-5in fthe?foil-ifsxrp-V 30 PIY'TSY'IS- l Ships or. 'installations vusingftrbries :Wi-th a gear reduction require ifndivclual'ff1nl r[1V ca'tngf oi1 tanks for the' storagev of bil atihat is continuouslypumfp'ed"intoand frgmmhef cessive speed a't Whichtl'iey gears revolve.- g

Itl becomes f veryf necessary rthat the operator inoharge Lof operating the turbineqxvateh 90 his oily level :inV the lsitoiizvige op settling shank anl"disconneet the steam sifpply; to :the L turfrv bine `When the oil -levelYgetsbelow fa .certain The? fobj ect of; myl ifinproxfemeht: Sas illus. rated inifthe f drawing: consistsproviding reached 1 the'V danger" point.' 'either by reason of the? oil* storage v-tanky supply@plump` ber coming' inoperativewor-by awzleak'from' the f gear-easing or' supplyfp'ipes.`

Ih thief-spaaractie@ and the massed.' 105 drawings; vthe":invention isidiselosdfin form considered .mbe th :bestgqm :it is@ limited to such form, because it may be Fig. 3 isan elevation vembodied in otl1er"'forms,f and `it isf also t0,y

be understood that in and by f the 4claims` following the description it is desired to cover the invention in ywhatever form it may be embodied. Y ,Y i

In the accompanyingk one-sheet.. ofv drawing:

engine room auxiliaries and turbine. f Y L 2 is a -verticalfsection taken thru an oilfsettling tank illustratingthe immersed tloatmechani'sm. Y f

erating the 'butterfly valve jon the Vmain steam line ktogether with the mechanism 'for releas-v ing the-same. ,A

' Referringto Figi the Viiu'merali2 desig-V V`natesfthe storage oroil settling tanks which according to usual practice are located am'idships' inthe liatchof the engine casing,

andffui-jacent;y the upperdecka to. permit :a:

E gravitylo-w ofthe oil to the point of dis-y triliution'rI14 have shown two storagetanks adapted. todraw' oil :from theI gearV easing.'

Vto the storage tank 2, which isy yilledthru the' supply line 5" from: the li'ibricatingoil pump 6, having 'a suction' feedk linev connected vto the gearcasing unit fand which fis' Within the storage tank 2 *i I provide the standard `7', rigidly welded, or secured'to the bottom of that tank'and' having 'the rod-8, i x securedv tov the spherical" hollow, metal float 9' completely immersed' in 'the oil and rsub-` stantialrly linthe '-vmi'ddlefoi the tank' land fulcruriiedf` on the *pivot f1() therein; vThe projection f ,11'iorln'ed'"orfljltl'ie"l standard' 7 isfV adapted to limittlef' -`vertical'f'movel'nent 4 of theiioat) as the oil level rises. ,The'otherf the,l forked rod" "12" eirterndingthru vthe: guide' bushing `14,""syecured1in the tope plate -ofithe tank, and is slidablyp connected t'off'the rod 15*7 havihgfaa @ad yic thereof pivoauy Se:

` cured to a bracket 17 `oni-theV tank'top The end 18 of the rod" lff'overhangs* the tak 2 and hasthe" wire l9`se'curedthereto; extending to the lever 20thatrotates the2-butter fly ,valve enclosedwithinftheV casing.` The butteriy valve22is" installed iii the^"-m'ain steam lie' 23T leadiiigfrom the boilers. Aaccording "to fthe' `-"-nited) States' -MerchantY Marine regulations, and is provided .with

Fig. l represents afvertical'fcross sectionj thru a ships hull with a diagrammatic aplplication o-i my improvement'applied to fthe olf-the lever for opthe hand lever 20 for manually operating the same.y thevg yalv'e casing and `provided with the notches 25 and 26 Aadapted to be engaged by the latchrod 27 slidably guided on the lever 20. The light compression spiing 28 issecured to the latch rod 27 for holding The quadrant 24 is 'mounted on the same in engagement with the quadrant n c notches p25-and 26.; -The end of the latch rod 27 has the button head29 formed therefrom'the notches. c i

-- The `bracket y30 is rigidly mountedontA thc upperk side of the butterflyy valve andhisl provided with the guide bushing 31 on the' end thereof thru which the endofthe wire.A

on as a finger grip for disengaging the latch '3 scY 19k is'inserted. On the under side ofy the"V bracket 301 providetheibell crank lever 32 hav'ing^the-elbo w.thereof pivotally lconnect-.1 ed to the bracket 30 and having the arm 33' 1 thereof connected to the endloftheawvire cated and is adaptedfto receiveithefhandle v of theflever 20 therebetween tio-,permit the button head'29 4'on thec end ofthe-latch` rod j 27- ftojk engage in 'frictional contact Lwith fthe@ forked''arm" 34.: f v ViThe kdevice operatesf as Y .f

`olilmifsi!iJiida, normal steaming conditions? the! llubricatn foil'pumpsfcfare, continuouslypumping-01 from rvthe vgear:-"casing to the storage; tanks i, i

duction-Y gears.' f'The-.oi1-while in the y,storage v tanks is not under pressureandv--i's main-,.

tained ata .levelI-findicatedg byfX"v lwhich-is; thenormalf-safe supplywlevel.- f'Ifg anacci-ivv dent occurs Vand f the "pumps-failk-tof keep the.: oil at the normal -leveliand the-level drops' to the .danger point f X, tithe' yball float 1` f crumed on the standard,{7,completely im` mersed.l in the 'oilat a jpredeterminedpoint,

drop'swiththe Voil surface Yforcingtheforked,

rodl y12 upward, causingittoylift thepbeam lwhich inturnpullsfup thejiivirel 19, and,k f

sion-:spring msecuredfto ythe valve-,casing at t 36=`-and toffthe lever 2Q "on-theeb1`1tterily`A valve, pulls lthe-lever 20. downward; in the; direction 'of arrowa'. sol that flatcli '27.' flocksk in they notch- 26, thus i closing i thefbuttery Y -r valve and, thereby disconnecting f, the steam? supply from the turbine.fTheprojection 24; limits the/.movement 37 on the quadrant "Modifications i in themselves V-to'those skilledin lthe lart 4and ,I i

d'of not wish toA limit myself to =the structure shown and described butIibelieve the: ar-

ticular:adaptation-oftheffloat '5i-.in atlu lri-f. i

est level inrcombination with` the'imecha-d lisy ters Patent is V- Y c 1. In combination with an; engine a throttling valve therefor, an operating lever for controlling the valve, a fixed quadrant adjacent the valve, aj latch-rodcarried by the lever for engaging the quadrant to 'holdrthe' lever in' a set position, a lubricating system for the engineincluding a lubricant gagingy device, a lever, operable by said device to disengage the latchrod from, the quadrant whenthe lubricant supply is low, and means v for movin Vthe lever to inoperative position` j whenthe atch-'rod is so disengaged.

2. In combination with an engine throttling valve ,andv a lubricatingV system for the engine, a lubricant kgaging device, a bell` crankpivovted on thethrottlin'g valve cas-w 20 ing and having oneend connected tothe device to be operated thereby and tsopposite end j-'bifurcated, a throttle lever for operat- Vingthe'valve and movable Within the bifurcarted end of said bell-cranklever, means 25 for holding the throttle lever ina set posi- Vtion and consisting of a latch rod carried by the latter and engaged by the bifurcated end to release the throttle lever when the lubricant supply is low, and means for move -ing the throttle lever to inoperative position when released.

Intestimony WhereoffI have hereunto, Y

set my hand at San Francisco, California, this 7th day of November 1919.

v P. RALPH T. MORGAN.

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