US1232561A - Block-signal system. - Google Patents

Description

M. lmuuim.` l BLOCK SIGNAL SYSTEM. APPuc/T'lon qui) Ama. ma.

v1,#5553561 Patented July 10, 1917.

5 SHEETS-'SIHH l.

WJTNEssEs 3 IVENTOR i mm I Amxxyx M. H.. JULIAN.l

BLOCK SIGNAL SYSTEM.

AwLlcATioN min APR. B, w13.

m ma@ v WMA.

Ilil lA INVENTOR WITNESSESI A M. n..4 mum. BLOCK SIGNAL SYSTEM. yMILICATIUN` FILED AIME l913.

Pmd July 1o, 1917.

5 SHEETS-SHEET 3 4Lszmpl.

`Wmv ssEs M.,R.1UL|AN. BLOCK SIGNAL SYSTEM.

APPLICATIO FILED APR. B, ESIS.

Patented July 1l), 1917.

5 SHEETSWSHEEY 4f fil-(150 A3 WITNESSES M. R. JULIAN- BLOCK SIGNAL SYSTEM. APPLICATION mln Ams. ma.

L 332,561` Patented July'lo, 1917.

5 SHEETS-SHEET 5.

/lfffi am mwrf ana-,y

2 clos/vc aan` 7916i UNITED STATES 4iai'riiiv'r onirica. y

HABE-ENA. B. `1' ULIANA'QF BIBHINGHAM, ALABAMA. ASSIGNOR 'ro JULIAN sxeNAL coMrAmr, or: nmgInenAM, ALABAMA, A conroiiA'rioN or DELAWARE;

` BLocx-smiiAL sYs'rEM.

To all 'whom it may concern.' Y

Be it known that I, MAasiiNA R. JULIAN, citizen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful Improvements iii Block-Signal Systems, of which the following is a specifi cation. i y

This invention relates to cab carried block signal mechanisms, the primary object of my invention being the provision of suitable mechanisms-which may be carried in 4the lo- 4 'comotive cab, together with suitable contact shoesfor coperation with track contacts of `a block signa system. v

The primary object of this invention consiste i'nthe provision of 'a signaling' mechanismjof the above described type, together` with a co-:icting signal recording mechanisinwhich may be employed with a block signal system of any in which both caution land dangercontaet shoes are em- Iployed, to ther with b'loclclearing shoes.

A` still rther object of the invention is to provide mechanism' contained within the cab of an engine, or inanyv other suitable c position u pon a train, adapted to make electrical connection with, the track signal 'system `heretofore referred to, and 'adapted when this connection is` made to display a visual clear signal, cautionary signal vor danger signal, sind simultaneously energize a clear bell signal, a cautionary bell signal or a danger bell signal. A further object in this connection is to rovide lmeans whereby upon the receipt y the cab mechanism of a cautionary signal, mechanism will be started to open the air valve of` the brake system to put on the brakes, and., wheieby upon the receipt of a danger signal said mechanism will also `be started, means being provided however whereby the engineer mayy return the parts 4to a normal position after the receipt of the signal, thus preventing the stoppage of the train. l

A further object is to provide means whereby the various signals above referred to and the time oftheir receipt may be indicated upon a registering tape so that ak record may be kept of all signals received by the engineer and thereby ofthe condition of the block.

A urtliergcbjectis to provide an electrically." operated mechanism within@ Specification of Letters Patent. Application led April S, 1913. Serial 4No. 759,817.

Patenten July 10,1917-,

the cab ofthe engine `whereby Vcautionary;r or danger signals indicating whetherjor not the block is clear may be received within `the cab and registered.

Other objectswill appear inthe course of" the following description. i. My invention is illustrated in the accompanying drawings wherein: i y lFigure 1 is a side elevation oatenderl and one of the switch engaging contactshoesL thereon. l y

Fig. 2 is a plan View of the` signal operating and recording mechanism located i" within the cab of an engine'.

Fig. 3 is a section on Fig. 2. l;

Fig. 4 is an end elevation ofthe construc-` tion shown in Fig. 2.; Fig. 5 is a perspective detail 'view offene ofthe contact slides. I. 'f `#7 Fig. 6 is a perspective View ofy a'contafct y slide coacting with the contact 'slide shown' in Fig. 5. Fig. 7 is a fragmentary vertical section on the line 7-7 of Fig. 4y showing the parts in" 80 one position. f c *il y Fig. 8 is a likeview to Fig. .7 but showing'- the slides depressed. f n: Fig. 9 is a fragmentary yvertical section on the line 9-9 of Fig. 4.

Fig. 10 is a perspective detail view ofther danger slides and the replacing lever;-

0n the line 11-11 of Fig. 4." i

Fig. 12 is a perspective detailiview of the clearing slide and a 'portion of the replacing lever. Fig. 13 isa perspective-viewjofthe automatic replacing Alever and' its' actuating 95 mechanism. i

Fig. 14 is a diagram of the wiring for the signal actuating `and recording' devices shown in Fig. 11. y f:

Fig. 15 is a detail plan View, of the mech- 100 anism for actuating the brake val-ve shaft.

' Fig. 16 is a face view offa portion'of the signal recording tape. i

Corresponding and like partsA are referred to in the following description and'indif" 105 cated in all the viewsy of the accompanying i drawings bythe same `reference characters'.y

The apparatus mounted upo'nfthe cabbff the engine whereby-the circuit is completed fromr the various shoes' of the; engine, 110

means of springs 87. The lever 84 is the -closing lever, that is, the 'magnets- 80 are sounded starts to operate and throws the through the'si'gnal bells and signal lights to --the ground is illustrated in Figs. 1 to 14.

The shoes whereby a 'Contact is made with the contact switches need not be specifically referred toas they may be* made in many different forms and without departing at all from they spirit ofthe invention. The

engine is, of course, provided with the ordinary air, brake valve, but in addition thereto a valve motor isvprovidedwhich when a danger. as wellas a cautionary signal is airlbrakes on.

Referring now to Y nates` abuse yupon which the mechanism 1s mounted, the mechanism being preferablv inclos'ed within afcase y79. Mounted within thecase 79 are aplurality of. airs of electromagnets 8,0, 81 and 82. T ese magnets are. connected up aswill be later described.'

Mounted upon 'an upstandin'g bracket 83 are a. plurality of armature levers 84, '85

and186. .Thesear'matuf a levers are all constructed in practically the same manner and lthe levers are'norinally forced upward by `energized when the train enters .thel block,

j thus actuating the lever 84. `The lever 84 `carries at its end a pivoted .dog 88 as does lthe lever'85. The lever-T86, however, does notcarryfany'dog... y v, l

'.fSupported 'immediately in. front of the levers 84, 85 and^=i86 is frame 89. This frame is metallic and is rectangular in form,

' the frame being bolted or otherwise attached to the non-conducting base 78. Carried. uponkone side of the baseer formed with it is a stop 90 which engages with the lever 84 to` limitA its upward movement. 'The dog 88 on the lever 841novesdownward between guides y91 and. 92 also carried upon the side i 'of the frame. f

Extending across the frame a cross bar 93 as illustrated in Fig. 4, anddisposed in the space between this cross bar and the top. 89'j of the frame 89 and against the inside face of one ofthe upright side pieces .of the frame is a slide 94 which. at its upper end isdprovided with an, inwardly extendmg lip 95 and at its lower endwith an inwardly extending flange 96, the lip and flange being yI )erforated as 'at 97 and the flange being also perforated as at-98 for the passage of cer- 60 i Y. contact member 101.

tain g'uideirods later referred to.

VThis' slide 94 is provided on its rear face with an outwardly projecting lug or shoulder 9 9, and attached to this slide is an out wardly vprojecting larm 100 composed of insulating material carryinga wedgeshaped Mounted inward of the slide .94 is a slide102 formed at ,its upper end with the flange 103 landat' its lower e'nd with the outwardly extending lip 104.

The flange 108 and the lip 104 are perforated rigs. 2 me, 7s daag. i

:as at 105 and the flange 103 is' perforated as .that the slide 102 is shorter than the slide 94 and is disposed interiorly of the same and that the slide 102 is independently shiftable vertically with relationto the slide 94.

The slide 102 is formed on its rear face with a pair of ratchet teeth designated 108 and 108", and the forward edge of the slide 102 is formed with a shoulder 109 and a ratchet tooth 109.

The dog 88 is adapted to engage with the teeth 108, 108, and a pawl 110 whichv is attached to the frame in any suitable manner and extends downward therefrom is adapted to engage the teeth or shoulders 109, 109". VVhenthe slide 94 is in a raised position, as illustrated in Fig. 7, a spring pawl 111 is adapted to engageunder the shoulder 99 so `as to hold the slide 94 in a raised position. It will be noted, however, that the spring pawllll is sufliciently wide so as to extend over inthe path of movement of the ratchet teeth 108 and 1083, and that upon a full depression of the slide 102 by two actuations of the lever 84 as will hereafter more-.plainly appear, the tooth 108n will engage the pawl 111 and. force it outward, thus permitting the slide 94 to bedrawn downward by inean'sv 100 and to base or frame 89.

The lug 100 carries upon it the Wedgeshaped head101' which is of conducting material, and the wedgeshaped end of this head coacts with two spaced contacts-113 and 114 when the slide 94 is in a depressed position. When the slide is in a. raised position, however, the metallic head 101 coacts with a Contact strip 180 which is in circuit with the white light as will appear more fully. in the diagram, Fig. 14, The contacts-113 and 114 are respectively connected in a circuit leading to the green or cautionai-y light and the cautionary bell signal, and a circuit leading to the brake motor as will be later described.'V It is to be understood that the frame 89 is connected' to the headlight generator or any other source of suitable electrical energy.

The-means whereby the slides 94 and 102 are raised a'fter having been depressed by the actuation of the lever 84'wi1l be described later. 4

Mounted upon the opposite upright 89n of the frame 89 a slide 115 (see Fig. 10)

having the inwardly turned or flanged ends 116 which are perforated atl opposite points for the passage of guide, rods. This slide 115 is providedwith an outwardly projectof a spring 112 which is attachedtto the arm tion. .y The guide rods 122` area'tta'ched inf,

any suitable mannertotbeframe and pass up through these perforations in the'flanges 116i,` 120 and 121 sothat the 'slides 115"an`d .edge

119 have free sliding'movement."L The'slid'e is ,urged downward by means ofa spring 123 `while the slide 119 is urged upwardV by aspring 124.,` f Forming part of the slide 119` is the pif0r" jectingy arm .125,.the upper edgey` of which is flanged asat' 126 for engagement' by the exvtremity of the lever 86, as

rear edge of .the siii i 115 'iafrriiedI and the rear Fig. 2.

The y withy a notchor shoulder 127,'

- notch 128. Coactingvwiththesenotcbes a. spring pawl 12 9attached to the in any suitable. manner yand acting 'to hold the slide115 in its raised.position` Thispawl is sullieientlv wide so` that u'po'ri'a `.ldescent',

of. the. siifi `.119, the. bepaalY ,br mandria it outward so that the vspring.123,will, the slide115 downward. i J

4; The lieadll is adapted tolengag u l r predetermined position "to another. f

' Referringto Fig. 13, 146` designates a ver- J raised position with a contact mem they contact.` member.

which corresponds to Thisl Ontact 130 previously referred to.I

member 13O l vi'selectrically connected as will be` later ,described..-; i I I. ..1 .E i.

below thej heai'lll'S.r

which areinsulated from. eachother andV normally out of electrical', engagement.

Whenfhowever,v the head 118 is depressed.

` it enters between the two contacts 131'aiid- 132 land electrically connects them with y the .frame 89. Oneof these contactmembers, as-

thc'contact member ,131, is connectedto a constantly ringing bell. and 'la red` signal light, and the :other contactmember 132 is electricallyy connected to the brake` motor asv will hereafter appear.j

Mounted upon guide rods liextending f down through the `middlefo the frainevis a slide 134 as illustrated in'Fig. 12. Thisslide at lits forward. edgeiis'. formedy *with a 1pair of ratchet nri'itches '135 and :,itjitsy rear 'edge is formed "with" af shoulder Ultim. The pawl carried on the endof tlie' eleai'ing lever`85` is adapted to i. engage the notches 135;,while the spring pressed 'detentor pawl. ,137,ilnoufn't-- i ed upon the up )er frame bar 89 .is yadapted anger 141.

of uw Slide-119 is frmedyiihayiikcpredetermine "is primarily for the purpose ofrecordiiig side the outwardly projectingarm 215' hav- "ingfdownwardly extending needles .or

' ling `mechanism f Thejre'cording `l0 punches 213111161214." Theslide also carries l a' downwardly projecting spring contactA iinger Iv andthe slide '1102"also carries upon it the downwardly projecting spring contact For Ythev purpose"of'elevating'tlie slides 94 and L15-after' they have depressed,

Hshaft fareangularlyf bent `a's'at 144, and pro'- jeet beneath the flanges 96 una 11e 'respecrockl shaft 143 Ainounted in'siiitable bearin sv saA tively."Iiifiieviir` 142 is heid inzicsmmd position-*by anys'uitable means as bythe i springm145. AWhen the lever is depressedythe "fthe"slides"` and 115;

ifiatically lifting y y time has elapsed from'the moment'atf, which they were'actuated,v as

`arms orv yteri'riinal ends" 144 will. rise,y j lifting `will"morefi`i"lly`appear in the description olfA .the operation of this mechanism;

cally actuated motor' connected to. gearing Thisv" shoulder128 will engagethe pawl,'tofshift, fmeans includes a relatively small." electritor' after'tlie imotor has operated from `one I tical shafft' supported in' anysuitable frame and carrying upon it'the toothed wheel 147.

- The motor comprises a pair of magnets 148 ,and anarmature lever 149 pivotally mounted .awl 151 which engages'withthe from isa isk 147 'A 'spring :member 152 wheel 'for projects from the armature lever andlbears against Va. 'contact screw 153.` fThe lever 149 is `connected by means of `1,54'..ivitli'tlie magnet coils. One of the mag- Vriet wires 156ie`xtends to' a contact member 157 which' is engaged by the dependinghcontact finger 141 on the slid'e 102.` vThe de-y .pending finger 14() on' the slide 1534 engages with a Contact member 158 which is also cona conductor wire nected in'circutwith said magnets by means la wire ,159. Thus when the slides102.and* 134mm' depressed' either one orjtwofste-psy,`

"electrical` connection willbe established between "the` frame 89`and .tliemagnets' 148,` causingthe actuation of the armature lever .@j'f the disk. 1,47: g Y 'i 14,; and a consequent by step ",rotationliff` L.to engage the s oulder;.136. i 134 S- ysliaped contactplatefligand 13o 80 I' provide the. lever.` 142 whichvv projects out l65 character driven by the engine,

A pivotally mounted upon thecross -bar` 89 of the frame 89 isa depending rod 161. This rod is mounted in bearings 162 and the lower end of the rod is so bent that its extreinit is approximately over the center 'of the sha 146 so that the terminal end of the rod will of the revolution of the shaft 146 but will be disconnected therefrom during another portion of the rotation of the shaft. The rod 161 after it. passes through the bearing 162 is bent outward as at 163 and then bent laterally as at 164 and then extends downward and again laterally as at 165 so as to engage beneath 'the pawl 110.` It will thus be seen that when the rod 161 is rocked by contact with the plate 160, the terminal end 165 ofthe rod will shift the pawl 110 outward and release the slide 102, permittin outward beneath the portion 163 ofthe rodV 161, and the other end of which extends im- -mediately beneath the pawl 137. Thus also when the rod 161 is rocked by contact withthe S-sha ed plate 160, the angular extremity 16 will engage beneath the spring pawl 137 to release it. i, A As before stated, the .frame 89 is electrically connected to the generator or other source of power on the engine and theslides 134 and 102 are thus connected through the frame with the generator. When these slides are depressed therefore, the fingers 141 and 140 willvengage with the contactv members 157 and 158 and current'will be transmitted to the magnet coils 148, causing a-zvibration ofthe armature 149. As spon as the S-shaped contact plate 160 has` forced the endA of rod 161 inward a sufficient dis-4 y tance, the detent pawls 110'and 137 will'be forced outward, permitting the slides' 102 '45 and 134 to rise. This would break the ci'icuit through the fingers 141 and 140 were it not for the fact that the rod 161 will now act as the conductor and carry the current from the main frame 89 downward. to the contact plate 160 and from thence by the frame sup ortng the shaft 146 to the plate 135 and tius to the magnets.

the contact plate 160 moves past the arm 161, permitting the arm to lyback to its tor is so calculated that it will run for about ve or ten seconds before the current will beY s@entirely cut olf fromit. i

The operation of lvention will be understood from the dia'-r` grammatic view Fig. 14.` In this diagram, M designates a generator of any suitable as 'for incontact with the plate 160 during a portion The shoe 172 is the danger shoe, andthe the slide'to, move upward. Alyso"mounte From the danger magnets 82 extends a wire and 86 is connected on one side with the gen-` l' ing upon its enda clapper engaging lwith a 148 which leads to lthe magnets'148, these 'is connected to the motor O by means 'of a The motor" will continue tobe actuated therefore'until this portion ofthe ini of power, however, may be a storage bat. tery. Ifdoinot wish to limit myself `to anv particular source of power. As iliiistrated, V one side of the'generator is connected by a wire 169 to a ground 170. Mounted upon 'the engine are three shoes 171, 17 2 and 173. The shoe designated 171 is the closing shoe.-

shoe 173 is the clearing shoe.

Extending from the` shoe 18H1 is a wireV 174 which leads to the ma ets 0 actuating the armature lever 84.v rom the shoe 1 72'a wire 175 extends to the magnets actuating the dangerl armature 86. From the shoe 17 3 extends a wire 176 to thev magnets 81 actuating the armature 85. Ffrom the magnets l extends a wire.177 having therein .bell

magnet coils 178, this wire 177 extending to a wire 179 which is connected to the'generator. vThis wire 177 is not connected to any light signals. From the magnet 81 extends ar wire 180 whichpasses through the signal magnets 181 and connects with the wire 179.

. 182 which extends to the wire 179. Thus it will be seen that each one of the three pairs of magnets actuating the armatures 84, 85

erator M and on the otherside with one of the shoes, 171,172 and 173. The bells operating in conjunctionwith the magnets 178 and 181 are bothconstructed in the same manner, lthe armature of each magnet carrygong 178*l so that upon an energizing of the magnet the armature will be drawn over and the bell struck one blow. Y

Also leading from the wire179l is a wirev magnets'bein connected to the'frame 89 of the machine,r y means of the wires 156 and `159 aspreviously described. The frame 89 isv connected .to the wire 169 and thus to the generator by means of a wire'183. The contact 130*- is connected by means of a wirev` 184 to the :contactll and the contacts 113 vand 114 are connected respectively to lasmator O and to a green'light. The contact' 113 wire 185, while the contact 114 isfconnected toa 'wire 186 which extends to a green light 182 and then extends to the wire'17 9. Thus when the contactmember 101 is moved-vinto engagement with the contacts 113 and 114, current will be transmitted from the frame 89 through contacts`118 and 130* to-both of thesecontiicts and thus through wire '186 andthe green light 182 to the wirel'jand the generator, and from the contact 1,13 to the wire 185 and so to the motor O'on the air line. This motor and its connected parts will'be laterLderibed.

The contacts'131-and 132 are insulated from each other. The' contact 131is conlso 5 .1321i wire 189 leads to the wire 185, andso wire 1 74 and along wire 174 to. the shoe 171 70 "2o wheel `192 having proiecting therefrom a 161 is released by theA enga ment of its end 86 l 25 `joint at 196 with the shaft 197 of the motor ener ations of the c i engagementwith the worm wheel192by over two contact switches )vhich are groun Aiprmouiitedand engaged with the gear wheel 50 brakes to be set as it will ,for lthe contact back to the generator, thus completin thelzlli 55 wire 183 is broken, or cut, I provide a wire by coming in contact with the strips orlin- 1 1,232,5e1 y I l B nected by means of a wire 186to acontinuy from the generator' in the direction of arrow ously ringingbell through the magnets; 187 `along wire 179 to wire 17 7 ,1' through the mag-.ithereof,4 and from these magnets awire 188 net coils 17 ('3V (actuating the bell 178") along passes to the wire 179. From the contact wire 177 `to the'closing' magnets 80, then to to thefbrush of the motor Q c through the contact tothe ground, complet- 4 `The motor O is an electric motor ofany ing` the circuit. suitable character, fand` connected to the opf he momentary energizing of the magnets posed brushes thereof are the wires 185 and `80 will cause the armature lever 84 to be 179.` This vwire 179 as previously stated, drawn downward.` `The pawl on the extrem- 75 ,leads to one side of the generator M, while ityof the armature ever 84 will engage the the wire'i185 kfrom the ot er side of the mo tooth 108l and foroefthe slide 102 down one tor leads by wire 189 to the contact memnotch until the shoulder 109 isA en gedvby l ber 132. y the pawl 110. When this occurs, t e finge The s indie of the air valve is designated 141 will make contact with the contact piece 80 190. 'l e air valve, however, is not showm v.157 and current will pass into the magnets The lspindle is providedwith the radially 148.. The amature. 149 will now be vibrated, arranged uhandle )g1 (see Fi 15)y aiid` thusrotatipfng the ,wheel 147, 'and this Vloosely mounted' upon the spind e is a gear tion of the parts wllcontinue until the ever stid 193` adapted to engagewith the handle. 161"`with the "plate 160. hen this occurs, y Mounted in conjunction withthe rwheel the pawl 110 isshifted from its engagement" 192 is a worin shaft 194 having t ereon'th'e with 'the notch109 and the spring returns worm 195. This is connecte'dby a universal the slide 102 ito its original position'. llf two n osing magnet are se-`I 90 0.1% :The screw shaft 194 canbe lifted out of cure 'by reason of the closing shoe passin means' of ya lever 198 connected to the screw ed, then' the iirst depression of the closing shaft 1194 by a link 199.' A spring 200 is sov armaturelever will bring the partskto the ositionjust described, and upon the second DE' 192 that when the worm shaft 195 is released epression of the lever, the pawl 88 will enfrom its engagement withthe worm wheel gage the notch 108 and depress the slide 102 192, `the april'.t will act to return the worm `to such position that the tooth 10.8*y will on `wheel to itsl.' gatial position and withdraw gage the pawl 111, releasing this pawl from the `lug 193f"v from its engagement with the its engagement with the shoulder 99 on `the 100:15 l*l handle 1915; Whemhowever, the motor 0 is slide 94, whereupon the spring will draw i Y energized, the worm 195 will cause thewheel the slide downward, carrying he head `101 v 192to rotate until the lug 193 engages the out of engagement with the contact strip 130 .handle 191;' whereupon the handle 191 will and into engagement with the'contact lingers be rotated with the gear wheel and the spin- 113 and 114.` f 1 l1 dle 190 will turn th'edair valve to suchpo'- l When the head 101 is in its raised posisitioras to set the brakes of the train. The tion and in contactv with the strip 130, cur# worm 194 and thel wheel 192, have such ratio rent will pass` from the 'wire"19, along the4` and operate at such speed that it will take wire 186, through the white light by means v between three to {ive seconds for the stud of av wire 187` to the contact' finger 130,110 w 193 to move from its initial position into and from this contact finger through the engagement withf-fthe handle 191. In-ot her head 101 by way of wire 184 to contact strip words, it will tgke the same length of time thence to the'head 118thence to the` lafter the actua'gtion o f the motor O for the frame 89 of the machine, and by wire 183` plate to move from its initial position to circuit. Thus normally the vwhite lig t is,`

` fully actuate the releasing lever or rod 161. burning but when two actuations of the clos-l',A

ln order to secure a danger signal in case ing lever have been Secured, the head 101` i the wire leading from the generator or the breaks ai circuit through the white light and 201 which leads from the wire 183 and is` gers 113 and 114 a circuit will be closed in yconnected to a lamp 202 or `other suitable one direction through the brake motor O si al and then extends to thewire 179., It .and in the other direction by way of wire l Vivill be seen thata circuit through this lamp 186 to the green light 187 and then to the 60 is always maintained through the wire 179, wire 179, the remainder of the circuit of 125 generator and wire 18B. i courseA being completed by the wires 183 'lhe operation ot so much of the invention and` 169 back to the generator, from the as has been described is as follows: When frame of themachine. theclosing shoe 171 strikesa grounded track lf4 the engineer does not actuate the lever 05 contact for instance,.a circuit is completed 142 within say five seconds from the time 130 that the cautionary signal or green light is Shown, then the train will be brought to la stop by an actuation of the brakes. however, the engineer depresses the lever 142, the slide 94 willbe'lifted, breaking the circuit through the closing motor and the greenV light and again establishing a circuit through the white light, the parts heilig i'eturned to their normal position.

If now the shoe 172 engages with a track contact which is grounded, then a circuit will be completed in the cab through the danger shoe 172, through the wire 175 to the danger magnets,` then by wire 182 to the i 89 lby head 118 to Contact linger 132-.l thence wire 179, thence to one side of the gener' ator, and 4from the other side of the generator` by wire 10Q-to the ground as at 170.

The actuation of the danger lever 180 will cause the depression of the slide 119. This as it moves downward will carry the shoulder 128 into engagement with the pawl 129, releasing` said pawl which will permit the slide 115 'to be drawn downward by spring 123, breakthe engagement between the head 118 and the strip 130 and close coutactbetweenthe'head 118 and the contact lingers .131 and 132. From the finger 131 a circuit will be completed from the frame 89a to wireV 186 through the magnet 187 oi the continuously ringing danger signal hell. and by way of wire 188 to one side of the generatorlby way of wire 179. At the same time a circuit will lbe completed 'also from the frame by way of wire 189 to the air brake motor O to actuate the latter. At the same time vthat the circuit is closed through finger 1,31 and through the danger signal bell. a circuit willjalso be closed thi'oiigliltlie wire leading to the red light or danger signal and thence by wire 180 lo the wiri` 179 and back to the motoi. Thus upon a single actuation Yof the danger signal armature lever 186, the

danger signal bell willbe sounded` the red danger signal light willl he dispiayed, a.nil

theair valve will be s'liil'ted toitsclosing l Aposition by the motor.

lt is to be noted in this connection that the inotor composed oi the magnets 118 and the armature 149 will operate tok return the slide 102 to its original position but will not operate to return the slide 119 toits origi nal position, its spring 124,4 doing this as' soon as permitted-by the raising of the slide 115 by actuation of lever 142. Thus the danger signal bell and the danger signal light will continue to 'ring and he displayed until the engineer actuates the lever 142.

vIt the clearing shoe 17 teenies-,into successive ,contact with two grounded contact switches a circuit will. thenbe completed f' through the clearing slice 178 along Wire 176 l ,to the clearing magnets, thence by wire 180 to clearing bell 181,"thenee by wire 179 to generator M and' thence to the ground 1170.

The first actuation of the clearing armature -lever will carry the slide 134 downward one4 v step until the pawl 137 engages the shoul-Y der 136. If now a second actuation of the armature lever is secured before the arm 165 acts to throw out the detent 137,"the pawl on the /arin 85 will vengage the second notch" 135 and move the slide 134 downward a still `further distance. lThe bell will be sounded so as to indicate this second actuation of the armature lever`85 but no light signal is given upon this actuation of the' armature lever 85. Y

It is particularly desirable that some record be kept to show vwhen the engineer re ceived signals. and the character of the: sig# nals received between the entrance ofa block and the end thereof.

For this purpose I provide a tape desigf nated 203 which passes over the lower har 93 of the frame 89. This tapeis mounted in any suitable manner asupon spools 204 and *205 and is actuated by.v clockwork so that it passes continuously across the face of the bar 93. Thisbar is perforated at a plurality of points. Mounted between"v the lateral uprightsof the frame 89 .and particularly betweei'i the guide rods 133 and the sidebar 89a of the frame is a needle Iguiding traine designated `206 andcomprising side supports and transverse [horizontal .i vcross ba rs 207. 208 and 20.9; These cross bars are perforated4 for a plurality of needles The needles as illustrated are fiveln numvher. The needles .210 and 211 nioveftogether and are conneetei'lto an arni 217 pro ectingl from the slide 102. A. pair of needles 213 and 214 project downward from an arm 215 projecting from thel slide 134. Projecting 'from the slide119` is an arm 2,16 carrying a needle 217. This needle 217' is` locatedbetween the two-pairsmf` needles 211, 210, 213 and 214. i The needle 210 is longer thanithe needle 21h The needle 214 is`the same length as the needle 2,1()a1id is longer jthan the needle 213. `The needle 217 extends downward a sufficient distance so that its point is on a line with the pointsor. the needles 211 and 212.

The operation ot thisl recording system y is as 1ollor.s-, Vi"hen the. closingshoe of the engine strikes a grounded contact, a

circuit will be completed through the inagnets '80 `and the armaturelever 84 will be de-y pressed. This will causeadepression of the slide V102 one tooth and the pawl on the armature lever will engage the tooth 108 when it rises. This initial depression of thev slide 102 will carry down with it the finger 212 `and will cause the needle 210 to enter the recording-tape. Therefore, the tape will show only one puncture. however, a second contact is engaged,` a second depression of the armature 84 will be received and inasmuch 'as at this time the pawl on the armature' is en i 5 marked Von t i. 1.28am

I i ture will be given to the tape inthe coliiinn 1 eating what may be termed the blockclosin recordif he needle 217 is designed toindicate the instant at which a train receives alda'nger lo signal... Thus when a circuit is completed V through the magnets actuating the'danger i armature 86, this` amature will be drawn ldownward as previously described, causing the release of the slide `115 and'causing thisk slide to drop under the action :of the Iv'spring 123. l.This slide 115 carries uponfit'the arxn -216which carries the needle217iaiid' this needlewill puncture the record siti-'ipery tape, indicating theta danger signal has 'beiireceived;r v. .f fWhen the clearing .shoe on Vtlieftrain reaches a. gron'ndedcontact one actuation of the amature lever 85 will bc received'a-nd theleng projecting from` the slide' 135i will be depressed and the needle will puncture the tape. lfrhowever, the clearinfir shoe dessins `over two grounded contacts the sli 'e134 will receive a two-ste actuation whichwill 3c.. cause both .ofthe nee les carried by. the arm 215iqto"enter the tape. i

The tape 200 may' sis1 be.. .Suppol'itedi" niovedin any suitable manner either continuoiisly or i nte'rinittently.` This tape-fof 'course movesy rela-tively slowly biitin v.order tofpi'ovide for a slight movement of: the tape `atthe.timewhen the needles have entered A the tape, Il preferably slot thebars* 20TP 208 and 209. and gilent will'gii'e tothe'wtape; i i u f Preferably the tape as showir in'1l `g.-j`v16 hnsthree longitudinali extendingfcolumns printed upon it, yone co iinin,1thatltothe" y y iii Fig. 16, being `for the closing signal. Athe jinlddle column `being for the dangerisi ,is

jiind thefthird or riglithandcolumn being" "foctheclearing signals. lThe tapisalso preferably divided into time graduated see- 'ions,. each of .these sections.` being divided into spares of one minute. Thus the perforations made by the recording needles upon the tape when taken. iii conjunction with the timeI graduations"will indicate thclength yof time occupied by the train in passingfrom one endv of the bloekto another, andfwill also indicate precisely the time l:it which the signals were received and the character of the signals. i i l With recording apparatus and signaling B0` ble :nl: well as a visual signal indicating;r the i condition of the block. and tlnift in conjunction thereii'ith a rei-ord will bc kept of the a5 signals received. This is of obvious advane tape for the `piinctures :indi-` i needle 214 carried by tliearni 21oY the needles being-.slightlyy re'- left apparatus ais fheretofi'ne described, it will he i i plain'tlia't the engineer will rewive unqaudi` tageto i fix the responsi in also .of advantage to the engineer as after l a signal has, been received and recorded (whi'clijit iscinstantly) the engineer, if he forgetswhatsigna'l has been received,` may lookmpon thetapje.`

ltwillibiseenthat `with any form of my.

invention the yengineer is warned visually and audibly of the conditionV of the block, andcan not escape Aresponsibility by assertf.

.ing his inability to read the track signals.y

l `fiiithermore the record made by the recordingy needles will show absolutely whether the engineer vhas or `has not received a `.certain signal and whether he shoulder should not hiwepbrought ,histrain to a standstill. Fur# thermore the lengineer can not run past the signals through inadvertence for the reason that/ii?y lied'ocs not within .live orten sec- 'oi'ids depiessz the ylever 142, theair brakes will be out 'oniand the train brought to a. standstill, at leustinlthose cases where. a miiitionary or a` danger signal has been griven.`

` Myimproved system may he installed .at a relatively small cost. the mechanism carried in the cab of the engine being compact and relatively cheap.. l* While I'have referred to the contact shoes as beiu'g mounted upon `the engine itself.y inpractice these contact shoes will preferably be mounted beneath the tender'as shown in Fig. 1. YThecontact shoes will ord'iti'arily' be betweenliveanfl six feet long andl turned upward at `enchlend so as to engage 'thecontact switches with the least possible jar-or 'shockw y f j `What I- claim is: 91. Inwin electric. block signal system, the `combination with a groundedtrack contact member.l of axehicle h aiing thereon a source of 'energy .grounded ony one side, a shoe "adapted to engage said track contact' and electrically .connected to the, source of energnanelectrically actuated signal, Ineens `actuated by the engagement of the shoe with the 'track contact lfor electrically connecting lthe signal incircuit with the source of en- 2. In anelectric lock signal system,' the combination with a grounded track contact member, of `a vehicle having thereon a source of energy grounded on one side, -a shoe adapted to engage said track contact. an

electrically actuated signahmeans actuated lby theengagement of the shoe with the track contact for electrically connecting vthe signal in `circuit with the source of energy,

ajprcdctermined time for breaking said circuit 3. lln an electric block signal system. the combination with u grounded contact meinies Hiiiid"'motor actuated means operating within ber, of a vehicle having thereon a source of energy, a shoe adapted to en ge said contact and electricallyconnecte to the source of energya signal, means actuated by the engagement of the shoe with the track contact for electrically connecting the signal in circuit with the source of energy, a motor, means actuated by the operation of the motor for a predetermined time acting to break said circuit, and means for electrically con-y necting the motor in circuit with the source i, of'energy upon the engagement of the said shoe with the said contact membe t 4. In an electric block signal system, the combination with a grounded track contact, of a vehicle having thereon a source of energy, a shoe adapted to engage said track contact, said shoe being electrically connected to the source of energy, a signal,

means actuated by the engagement of the shoe with the track contact for electrically connecting the,V signal in circuitl with the source of energy, a motor, means actuated 'grounded contact members, I54

.by an operation of the motor for a predetermined time acting to break the circuit to the signal, means actuated b y the engagement ofthe shoe with the trackcontactfor electrically connecting the motor to the source lo f energy,aud means actuated by the operation of Ithe 'motorfor apredetermined time acting to break said-circuit.

5. In an electrically actuated block signalthe combination with normally system.'

vof a vehicle having thereon a source of energy, a shoe adapted to successively engage said track contacts and electrically connected to the source of energy, a Vmagnet electrically consystem,

nected in a'circuit including the shoe and the source of energy, circuit closingmecha.- nism actuated` by the energizing' of said magnet,a signal normally electrically connected with the source Aof energy andare-l maining so upon one actuation ofsaid cir-v cuit closmg mechanism, a second signal 1n a.

y circuitA adapted to be closed upon. al second actuation of the circuit closing mechanisn,

and means for breaking the circuit through the' first signal' upon the closingof the circuit through the second signal. 5

l l6. In an electricallyoperated block signal energy, a magnet insuch circuit, la. circuit` closing'meohanism shifted in one direction upon the energizing of said magnet.; means for holding said circuit closing mechanism in a shifted position forL a 'predetermined time and then releasing the circuit/closing., mechanism to permit its return to itsoriginal position, means for shifting said circuit closv ing mechanism a second time in continua.

the combination with n normally groundeditrack contacts, of a' ing thereon a source of energy, a lshoe, adapted to engage said track contacts and.v electrically `connected, vto thekso'urce of` tion of its first movement upon a second energizing of thefmagnet prior to the release of the circuit closing mechanism, and signals res` tively 'electrically disconnected from an connected with the source ofv energy by the second actuation of the circuit closing mechanism.

7. In an electrically 'operated block signal system, the combination `,vith vnormally grounded track contacts, of a vehicle having thereon a source of energy, a shoe adapted to engage said track contacts and lelectricallyconnected to the source of energy,

a 'magnet 1n such circuit, a circuit closing ,v

v mechanism shifted in one direction upon the energizing of said magnet, means for holding said circuit closing mechanism in a shifted position forl a predetermined time andthen releasing the circuitclosing mechanism to permit its return lto its original positon, vmena-ns for shifting said vcircuit closy ing'mechanism a second tlme in continuation of its first movement upon a second energizing of the magnet prior to the release of the circuit `closing mechanism, two' signals,

4and mechanism for maintaining the 'elec-Y trical connection of one of said signals with the sourcey of energy upon the initial shift of the circuit closing mechanism and for breaking the circuit through the first named signal and closing a circuit throughthe second named signal and the source of energy closing mechanism.

8. In an electric block signal system, the combinationwith normally grounded track contacts, of a vehicle having thereon a source of energy, a shoe adapted to engage said vtrack contacts and electrically connected to the source of energy, a 'magnet connected incircuit with the shoe and the source of upon the further shift of the circuit energy, an arma-ture, a circuit closing and I o ening device adapted toI be shifted 1n one dlrection by the energizing of the magnet, a signal a normally closed circuit with said sourceof energy, a signal in ,a normally interruptedcircuit with said source of energy, 1, means for holding the circuit closing-device ,in its shifted position for a predetermined time Vafter its initial shift and then releasing the V circuit closing device to permit its rel turn to its original position, and means actuated by'a second4 7emergizing of the magnet Vwithin the predetermined time, shifting the circuit closing device to a position to complete a circuit through the second named signal and break the circuit through the first named signal. v j 9. In an electricY block signal system, the

`combination with normally grounded track contacts, of a vehicle having thereon' a source of energy., aushoe adapted to rengage said .track contactsfand electrically connected to the source off energy, a magnet electrically connected in circuitv with the shoe-aand of energy, a circuit. closing and opening device shiftable inone direction by the energizing of the magnet, means acting to re turn the i'rcuit closing device to its original position, means for causing a step by step actuation of thclcircit closing device upon successive energize-tions of the magnet, means for returning the circuit closing de- ,v'ice to itnsoriginal position within a predetermined-Atilne after .the energizing of the magnet, electrically operated brake actuatinv mechanism, and means actuated by a slnftingiof the circuit closing mechanism by two successive energizations of the magnet acting to close the circuit through the 2`5 contact for electrically connecting'the signal in 'circuit with the source of energy, and a timing mechanism for breaking said circuit. l 1\1.`Inan electric block'signal system, thc combination with a grounded track contact, of a vehicle having` thereon a sourceof energy, a shoe f dapted to engage said track contact, said s oe being, electrically conneet-ed to the source of energy, electricallyT operatedxbrake actuating mechanism, means actuated by the engagement of the slice With the track contact or electrically connecting the actuating mechanism in circuit with the source of energy, a signal, means actuated by the 4engagement of the shoe with the track contact for electrically connecting the signal in circuit with the source of energy, and a timing mechanism for breaking the circuits through vthe signal and through the'brake operating means. Y 12. In an electric block signal system, the combination with a. grounded track contact, of a 4Vvehicle having thereon a source of energy, a shoe adapted to engage said track contact, said shoe being electrically con,` 60 nected to ,thesmlrce of energy, electrically operatedbrake actuating mechanism, means actuated by the engagement of the shoe with the circuit closing mechanism.

the track contact for electrically connecting the actuating inechanisni in circuit with the source of energy, a signal, means actuated by the engagement of the shoe with the track contact for electrically connecting the signal in circuit with the source of energy, time actuated means for breaking' the circuit through the signal and through the brake actuating means, and manually actuatable means for l'ureaking said circuit.

13. In an electric block signal system, the combination with a `grounded track Contact of a, vehicle haring thereon a. source ot energy, a shoe adapted to engage said track contact, said shoe being electrically conneet/ed to the source ci' energy, an electric motor7 a brake apljflying nukchanisin, means operated by the motor for actuating Asaid brake applying .uicciumisiu after a n termined number ot' rotatie .4 ci the motor', means actuated by hc engagez cnt of the shoe with. the trac contact ''cr e ectrically connecting the said motor in circuit with the source of energy, and manually actuat-` able means 'for disconnecting said motor from the brake mechanism.

14. ln a track signalin system, the coinbinatou 'with a grounded track ccntact, of 80 a vehicle having thereon -a source of energy grounded on one side, a shoe adapted to engage said track Contact, step by step Vcircuit closing i'jiechanism actua-ted by the clos-l y ing ol a circuit between the slice and the B5 source of energy,y a signal adapted to be ac` tuated hy the actuation of the circuit closing mechanism. a pair of punches operi tively comiected to the step by step. circuit closing lneehanisinE said ),runches being of different length, a tape with which said punches are adapted to coact, and means for forcing one of the punches int-o the-.tape upon ay one-step actuation of the circuit closing mechanism and-for foriing both punches into the tape'upon a two-step actuation of In testimony whereof l affix my signature in presence of two witnesses.

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