US1049306A - Safety air-brake valve. - Google Patents

Description

F. 'I'. JONES.

SAFETY AIR BRAKE VALVE. APPLIGATION FILED JAN.12,'1912.

x mmm T0 ENGINEERS VJLVE t v., vienne, oai aefenaoaa,

lPtlllllNll p MARYLAND, ASSGNOB. V'Ll THE JOIll'iES SAFETY' HNTJNTROL SYSTEM CMPANY, OF BLTXMORE, MARYLAN, .A CORPORATION' SAFE?? AER-BRAKE VALVE.

Patented Dec, BL'Q.

Application led January 12, 1912. Serial No. EWMSQ,

wil/om. 'it may wacom: it known that l, FRANK 'l1-Jonas, Ai .een of the United States, residing at immore, in theState ol Maryland, have invented certain owing is a specication.

I, invention relates to an elect'fo-pnenn c Safetytrain-controlling valve for air "1d has particular reference to a this character to be used in an eleo- :in-controlling mechanism on rail mention is particularly applicable .J in a safety system like, or Somewhat that. set foith in U. tra iatent No. granted onxllovembe' 23th, 19M i biehai'd Tfwlones jointly, Whereioadvvay is provided at inteivale with .amp oi* contact rails, having con- 'A'h a local coment supply so that a the vehicle duringw its passage over .i rail may, in cases of Safety con le ahead, pick up a current from the vail and throw it' into oicuit with vilain on the vehicle to prevent the opof the ainbrahes, and in caae of danoiiditione ahead to out oil the connec veen the ramp rail and the said local einy anpply, to prevent said current from to the vehicle, thus causing the itc be appli-ee. pieaeiit invention. elates particularly die controlling mechanism and il o on theA vehicle to control the "ceoinpanyii drawing :illustrates the `in .vlit e l, diagramniatically illustrates a oil he 'tracht rail; 'the ramp rail and ein supply and the dei-*ieee` and cir Fig, 2, shows aac@ ,A the vehicle.

elevation oit' the coi1tz'olling-valve "ii, and Fig. 3, a sectional plan the line of Fig. t2. leaving 'to ille drawing he numeral, l, es a oase having two doors, 2, and, lively, each preiaeiably having Wl'iei'ehy parte therein may be tai'o'ngh the glass. This ease may be al; 1y' convenient place in the cab e, .motor o1' othev vehicle ily conveniently accessible to new and useful improve` n Safety Air-Brake Valves, ofP which' from the with a suitable'indicator device, 4, in addition to a lode-the key hole, 5, to which is shown, so that in case a dooi1 is opened, the fact obsuch opening will be indicated and the engineer be required to account for auch opening.

A pipe, 6, enters the case from the train line and. is provided with a valve, 7, on the inside of the case in order that by opening the door, 2, access may be gained to the valve so as to entirely cubed the train line connection. Thine may bc necessary in case one engine or inotoi is actin as a hel Jer to another izndei` which conditions the vL ve device on the helper will he out out. 'A branch pipe, 8, extends laterally from the train line pipe, 6, above the valve, 7, and said branch vipe enters a vertical pipe, 9, which extents upwardly in the case to a point at. one side ol the upper door, 3. This vertical pipe, 9, is provided with a valve, 10, at its lower end and at its upper end has a valve, ll. By reference to Fig. 2, it

tical pipe, 9, have positions adjacent to the doors, 2, and, 3, and by reference to Fig. 3,

it will be seen that valve, l0, a Stem, 12,.

which projects through the casing Vall, 13, and is exposed on the outer side of the ease. The saine is true of the stem, Il, of valve, 1i. The outer ends of these valve Stems, 12, and, il, are provided with arms or handles, l5, and, 1G, respectively, and it Will. be noted that these anni; or handles project over the edges of the doors, il, and, 3. The valves are in the cuteot positionand positions of the handles are Such that beforeither doei" can be swung open the handle that projects over such door moet he tuined, but `in do ing so the valve will be opened and the ai?.` pipes, 9, 8, and, 6, will. escape, thus causing a reduction of train pipe pressure and an application olf the brakes.

Above or beyond the branch pipe, 8, there is provided another valve, 17, anda short section o pipe, 18, extends from said valve and enters a port, 19,'in one end of a cylinder, 20. This cylinder has a valve seat, 2l, at the inneejside of the port, 19, and is also provided "Wltlia plurality ofcircumferential air ports, 22, beyond the said valve seat. A piston head, 23, snugly lits the interior of the cylinder and one end of said head is provided with a valve, 24, which in the present will he noted that' the valves, 10,- and, ll, in the stand or ver-V instance is oi e oone-siiepe to eoriespo'ii' Willi the shape oi? lle seo, 22st the inner end of port, 19. The opposite enubf the cylinder closed, in the presen?, instenee, oy means of a` soiewet-lueeeci ping, 32", into the outer en of which e short section opipe, 9.5, is fitted. A pipe, 26, eners ne oase', l, preferably from the main si? esoivoii on the locomotive, motor oi vellieie, which le er is not shown because it is a Weli known adjunct to the ordinary air-insel@ equip n, and an eleetio-pneumelie valve devi-ce, 27, is interposed between seid esesvoir pipe, 26, ond the cyiinder pipe, 25. in the piesent insanee this electro-pneumatic valve (lei/ice., 2?, comprises :in elbowshepefl easing ne-ving e port', 28, which provides communication between the main reservoir pressure in pipe, 26, and tl'ie eylindei', 20, end enoii'ier port, 29', to the ennosplle-e,or io elle interior of the case, swl'iieli leitei has peforeiions, 30, in its walls. Ain eieotro-inagnet, 3l, is suie ably mounted in ille Case, i., snol adje-Gent Co the einospheife poet, 29, of the pneunieio valve cleviee, 27, so hei, an fermeture, 3i, may oe attracted oy the magnet and oeri'y e vulve stem, on which wo valves, 3%, and,

85, respectively mounted,

The valve, 54, is eei'iefi onli-ne upper en of the siem and has position ioove llie post, 28, while valve, 35, is mounted on the stein below the posi, 29. The ifelaive position 'of these valves is `suoli that normally, when tlie magnet is energized and'ilie ei'miture, 32, and valve siem, helfl in elevele. position, the iowe: valve, 35, will olose po'i, 2), while the upper valve, 3%, will be liiied from the pori, Q8, to allow ieservoi oir to pass 'to the oylindei, 20. lThis posiono olie vulve/sis the normal gunning ozniition with die brakes held oil', but oeomse tile leiter may be vo ierziteil by manipulations o the engineers vulve for all the 'usual service and emergency applieaions.

A. spring, 136, eorngnesse-:l in iie cylinder, 20, oei-Ween tile pl 1g, 3'?, and piston heed, 23, so es to exertl e pressure on top of ille seid lxeefi ond aid in sealing the valve,

2A, ogeins'r, 'the 'train line pressure.

lli'om the oiegoing explanation it is oovious that if ilie eleotio-megnet, 3l, becomes denergized, he vlve siem, 33,"and valves,

und, 35, will drop-ille valve, 34, iliereby Closing' the pori, 28, und shutting oi ille inainiiesorvoil"enr and the valve, 3:5,opening port, 29, io ille atmosphere illus allowing the oir to esenpe from the lippe? side of the pislon head, 23in cylinder, 20; Thisesoape of nir on the upper side oi piston, 3, removes ilie` sii pz-{ssln'efi-oni lnit sxe of 'tlie heed while the pi ure in inin line Willeo on the unflvi-sn'le oi 'the heeel und reise the nl eylinfleewliioii causes Valve, 'to nneoijei pori, Qi, en@ siiow @ein iine eil" to vom, io ille etmospiei' liiengn poils,

emi, ef, is never completed 'until :eoeeeee 22, in the ojflindeif, This reduction owieii line pressnie wii efeet en applicati@ o gifle brakes in olie sanie mannelas tiiongio the engineer limi broiieli about bymenip'u* lensing his engineers valve.

ft onlyi'eineins ilieiefore lo set oiftli 'ille smtomif/ilion eeerie oiicnts by which the electro-magno@ 3i, is enei'gize en elle means foi 'ineriupiinff those ciieuis io eense 'en sppiioetion of ille brakes when de qiied; 1

Ey e'ei'enoe to Fig. l, wherein ille vehieie is (liai'annnetieelly shown, itwill be seen hnl. the imei?. sail, 38, has ,s connection, 39, eliat extends toe siiiieoie eonteo''plste, all), end ne an armature, 4i, is mounted so es to be helfl, under cezlein oonilions, against said plaie, 4G.; in eleourmegnet, L12, is also provided which flatter is kept energized by e oireuij that. includes ine wire, e3, onlyfsilien he ieol aliesel is @leer as fully explained in said U; S, Peen 1,010,373, hereinbefore iefeirefl 5o. A connection, exenuls iom the einiatue, #il one )pole of eiloetery, -5, oi other som-ce of surfent. c

Romp rails, 46, eieealso provided inlervels along' the treekway emi eaoli ramp rail is provided willi e coniluoior thai eonmeets it Willi, the other poie 'of the imiiey,

'it will illus be seen tha as long es line Wire, 3, Concl-sois eui'ien iin'on L electromagne, $2, the iail'er will Een energized sind hold the armatore, Lin

allrziciedA position where it. will ooimeo track-rail, 38, anal ramp rail, 4S, Wil linttery, 45, out the circuit from the saidbel ier'y, 4.3, ln'ougii Emol; end ramp Tails, BS, ve

hiele arrives et the romp rail emi is .Feen only coinpleieo lnoiigh tlie veiif-le in 'esse ioe track ahead is eiser and. inegine A, s energized. The vehicle poifiiiefl WV' e Contact shoe of 'any 'suitable consiucion ont in ille present insfmiee 'is shown es We clepenfling sions, e?, and, 8, ies-peelively insuintecl from each other. These arms noimaily enigen-ge suitable oonziet pieles, end, 5G, and 21 conducto?, 5l, exends from arm, 4?, nml ooxineets with the electro-inem nei, 31, in ille case, l, ou the vehicle Wliieii magnet con'iols the stem, 33,' :incl valves, Se, and, conductors, 52, then exten'fls from seid eleetro-inagnei, 31, t0 the axle, 53, of the vehicle and from the Aaxle Aoon-4 neetion is made with track mil,38, by ineens of the wheel, 54.

A battery, or other coment supply provided on the vehicle and one eoncloetor, 56, extends from one-pole of seid betery 'to und conneeis willi oontae plae,.lf9, While maille? oongluooi, 5'?, exienfis 'from ilie einer pole of said batery, 55, toenfi oon- -neets with contemplate, 50.

annonce shown in llig. 1, which is at all times when the vehicle is traveling between two ramp rails, 46, a circuit will he aintained on the vehicle from battery, 55, conductor, 56, contact plate, e9, arm, el, andconductor, 5l, to electro-magnet, 3l, to energize that magnet While the vehicle is between ramp rails, then returning from said maguet'the circuit. wiil be oy conductor, 52, to axle, 53; conductor, 58, to arm, 48, of the shoe, then to Contact plate, 50, and by conductor, 57, hack to the other pole 'of the battery, 55. This normal vehicle circuit will keep the electro-magnet, 31, energized andas long as said magnet is energlzed the, armature, 32,'vvill keep valve stem, 33, Araised so that inlet port, 28, will he open Aand escape port, 29, Will he closed by valves, 34, and, 35, ref .g spectively r`consequentlyair pressure of the main reservoir willvhe maintained on top of'piston-head, I23, in cylinder', 20,'.and hev ing greater hy fifteen ortwenty pounds than the pressure from thetrain line,f6, dt" the bottom of valve, Q4, will keep said. latterv valve seated on the port, 2l, and thus prelv vent the train line air from escaping into the cylinder, 20. By thus maintaining thev train line-pressure 'the air-brakes will be held od or in the released position in the usual manner. f l p When the vehicle reaches aramp rail, 46, the arm, 49, of the contactshoe will ride up the end of lsaid ramp rail and in doing so `will break the connection between contact plates, t?, and, 50, and shoe arms, 47, and 48, thus interrupting. the normal vehicle circuit from battery, 55, toelectromagnet,-3l, and return. Gioviously, unlessl current from some source 'other than from battery, 55, he substituted at'sthe momentwhen the said normall circuit is interrupted as just above described, they electro-magnet,

3l, on the vehicle will he denergized and would cause an emergency application of 'the brakes as will presently be.explained,

but if the track ahead is clear the applica` tion ont' the brakes mustbe and is avoided as followsens ythe shoe arm, 49, passes ahead is clean onto ramp rail, 46, it will `pick up or con` tinue the circuit from ramp rail battery, 45, through the arm, 47, to electro-magnet,

`3l, and at the same time this circuit will be completed from said magnet, 31, by returning hy Way of conductor, 52, to axle, 53, wheel, 54, rail, 3S, conductor, 39, contact plate, 40, armature, lll, and conductor, l-, back to the said ramp rail battery, 45. By thus temporarily substituting the current from battery, 45, through magnet, 31 in place of the current from vehicle battery, 55, which' has been interrupted, the said electroinagnet, 3l, will he maintained in an energized condition and the brakes Will loe kept in the release condition, because the track- New presnming the traclrahead to he roecopied orv the rails hrolrenu Such a condition would interrupt the current that Wduld otherwise pass through ltrack magnet, eli-2,'

4l?, passed onto ramp rail Ulivi'ously a de? 4 energization of electro-magnet, 3l, would result because of4 t-he lack oi' current, and stem, 33, would drop and allow valve, 34,130 close so reservoir pressure would be cut olf from the pipe, 25, and cylinder', 20, and at the same time valve, 35, would drop and 11ncover port, 29, thus allowing-the air to cscape from pipe, 25, and cylinder,'20. he release of lthe pressure on the upper side of .piston head, 23, would immediately allow the greater train-line pressure on the under side of 'the piston head to raise val ve, 24, and

said piston headn This movement would permit the train line air to escape' into cylinder, 20, and then out by ports, 22, as to materially reduce the pressure in the train line and by this reduction an'. application of the brakes would he automatically effected in the usual and Well known manner.

By providing a' case and Ainclosing the'V 'controlling mechanism therein `s'othat access cannot he gained thereto except hy means of the doors and then only upon registering each time a door has been opened, interference with the apparatus on the part of the engineer will be reduced to a minimum be- 'cause the doors cannot be opened Without first venting thetrain line of pressure by the turning of one or the otherof vvalve'handles, l5, or, 16.

Having thus described my invention iii/hatl ai l libe' 'Y I claim and desire to secure hy Letters Pat' 1.` In an air-brake valve device for vehicles which latter travel on tracks, the combi` nation with a vehicle having an air-brake system, of a train-line connection with the air-brake system; a connection 4from the `main reservoir of the said air-brake system; means for normally holding the train-line 1 lli connection closed by pressure from the reservoir; means for controlling the reservoir pressure to the closing means of the trainline; and a circuit on the vehicle including the said means that controls the air-reservoir pressure.

2. In an air-brake valve device for vehicles which latter travel on tracks, the combination with a vehicle having an air-brake system, of -a train-line connection with the air-brake system; a connection from the main reservoir of the said air-brake system;

means for .normally holding the train-line eomieeioii Closed by preeeure from faire reservoir; mire ii'zesiiie'ior cont-roiiirig iie reservoir pi 'ure to the said closing means of che train iiiie; mi eiectro-mepnei io centro! seid wire means; anni e eiroui on die vehide which iziohides the Said eiectro-iimg net.

3. in an air-brake Valve device for vvehicles `which leiter truvei on tracks, the eorri'oination wih a vehicle having an air-brake System', of .al Cylinder on the Vehieie hiring e morzihie pifstomhead'; a conneetioii be tween one side of ihe head in said eyiiiider and the t: ein-line pressure of the air-brake 'Sysemg means, normally retaining 4said the eher Side oi' the piston heed to normeiiy heid he Said pisioii head to preven; ihre escape of air romhe train iiiie; a Juive iii the reservoir connection i iiiovahle ei/ice on the. ehiclejand means coacii'ie between the said movable device and he v fih 'iithe i reservoir connection to control he smo valve.

n'an air-brake Veive devi-2e for vehicles which travel on iaeks, he coiiihiiia- Jcion with a vehicle having en air-brake tem of a Cylinder on the vehioie having a movable piston head therein; an air-brake train iiiie Connection with the cylinder and one side ofi 'the piston head; en. air-brake reservoir Connection with the cylinder and ai; he other side of the pietonfhead fo nor maiiy hoiei the said piston head to pre'v'en'f; the escape of air from the train line; ai valve in the reservoir connection; a moi-'abie de-y Vice on the vehicle; an electro-magnet to control the salici va1ve, and `zi circuit i101'- maiiy en he vehicle iriciiidmg L sourceof y current supply, he sai'riiiovzile device and the electromagnet.

6. n :in airbrzike valve device for vehides which travel on tracks, the combination with e. vehicle having im air-Brake system of a cyiinder on the vehicle hfwhi'g a movable piston head therein; an air-hrice train line connection with the cylinder and one @iria of lh; piston head; mi air-br`ake reservoir connection with the cyliiifier and ifi pis-ion head t0 prev .iiisiiiy heid die lom @he tram nire;

eso e eir i e pressure l. i f Y' cenni L vieu in buio. meer wir esi 'tion heffing a pori; ier the passage oi at the other iside of ihe piston head to norreir o @--e side oi' said pisoo hear?. and eneihei pore for the ese-(ipe of nir from said side of he pif-sion head; a. mire or each of seid porief en eleoiio-iiiagne't io eontroi seid valves and Le hold one open and the other see-died; mowhie device on the vehicle, and a oiioui. normally on the vehicle and inciuding the movable device and electromagiie. y

7. *n en ehrake valve device for vehieies which ievei on tracks, the combine? tion with e vehicle having an air-brake system mi e oyiineier on the vehieie having ay movasle pis'on head therein; en air-brake 'trein iiiie eomieoion with the eyiinder. and

one side of the pisionhead; an air-hrake remi-voir connection with the oj/iinder and at the einer eieie of the piston heed i0 no'rmaily uffi seid piston heed to prevent escape of e r i'ioni the tram hue; zi pressure conf' reiiing: @Levico in the, reservoir connection fee having two poris one of which is the pessege of reservoir air to the pieter; heed arid zhe other conrois 'the es*- eape of sir to thezitmosphere; en eeotio on die miem one for each said ports; and, i eirou hicie to energize said eieetro-iiiegiiet and normally heid one of said mires unseated and he other seeie in im air-brake faire device for vehicies whifh leiter iavei on tracks, the com- ?iihaioii' Wi'h a Vehicie having im, eir-brake sysem, of e Cylinder having' 7pisioii hea 1therein aiso haring brain-hue cormec "the vehicie, ami a cireuiv normally infiovabiey device and electr-e-4 ciudiug th magnet. l

9. in an bii'mioii with vehicle having *i System, of? a, Cjyiinder haring two spaoech apertporis and also haring ports thee open to i:he atmosphere between the `two spaced-l pigtoii head uismd cylinder hea wiring' 2r wir@ ai oneside .to normally cio: one o? theizvm spaced-apar@ ports; a

der; a reservoir-air lill@ eoiiiieeioii with the normally CII valve; n movable device on the vehicle and a circuit including he movable' device and, ma net for, norma ly energizing the latter to old the valve so that reservoir air will seat'the valve on the piston head over the port that delivers the train-line air to the cylinder.

l0. In an air-brake valvedevice for vehicles Which latter travel on tracks, the combination With a vehicle having an air-brake system,y of a case on the vehicle; a connectlon from the traindine ot the ainbl'ake system entering the said case; a connection from the air-reservoir of the air-brake sys* tem also-entering the ease; means in the case for normally holding the train-line connection in the case closed by tlie pressure from the air reservoir connection; means also in the ease for controlling the air-reservoir pressure;v a movable device on the vehicle and a circuit also on the 'vehicle including the movable device and the said means in the case that controls the airl'reservoir pressuren ll. In an air-bralte valve device for ve-4 hicles Which latter travel on tracks, the con'ibination with a vehicle having an -airbrake system, of a case on the vehicle; means in 'the case Jfor controlling the escape ot' air from the-train-line of the air-bralte system by pressure from the air-reservoir et' the said air-bralre system; a movable device on the vehicle and means' actuated through the movement ot the said movable device to cut-ofi" the pressure from the said air .reservoir to allow the train-line pressure to.

escape. f

12 In an airbrake valve device for vehicles which latter travel on tracks, the combination with a'vehicle having an air-brake system, cfa case on the vehicle; means in the case for controlling the escape of air from the train-line ci the air-brake' system by pressure from the air reservoir of the said air-brake system; a door to the said case; a movable device .on the vehicle;

:ineens actuated by the movement of the movable device to cut-ot the said reservoir pressure and vent the train-line, and means for controlling the train-line pressure and enacting with the door of the case to prevent opening of the door except by venting the train line.

13. In an air-bralie valve device for vehicles which latter travel on tracks, the combination with a vehicle having an air-brake' system, of a case on the vehicle; a door to the ense; means in the case for controlling the escape of air from the traindiue by pressure from the air-reservoir et lhe said air-brake system valve means to control the air-reservoir pressure to the said train-line controlling means; an electro-magnet to hold the valve means so that pressure from the air-ieservoir can pass; a movable device on the vehicle; a circuit on the vehicle including the movable device and electromagnet and means for also controlling the train-line pressure and coacting with thev door of the case to require venting of the train-line before opening of the door.

14. In an air-brake valve device l'or ve hicles which latter travel on tracks, the com bination with a vehiclehaving an airebralte system, of a case or, the vehicle; a movable door. for the case; indicating means actuated by the movement oi the door; means in the case for controlling the escape of air from the train line of thc brake system by pressure from the air reservoir'of said system; a movable device on the vehicle; means actuated by the movement oit' the movable device to cut oftl the said reservoir pressure and 'vent the trein line and means also controlling train line pressure and coasting with the door of .said case to prevent open ing the door except by first ventingjr the train linei y In testimony whereof l affix my signature in presence ot two witnesses.

` FRANK T. JONES. Witnesses:

CHAnLes B. MANN, Jr.,

G. Fimo Voo'r.

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