US1043907A - Automatic gate for railway-crossings. - Google Patents

Description

N.. '5. DELL. AUTOMATQC GATE POE RAILWAY GBOSSNGS.

AYPLIOATION E ILBD 0012.14-, 19N.

aented Nov. 12,192.

` 5 SHEBTS-SHEBT 1A n BELL Aufrmmc GATE Een Mlm; massime-s,

APPLIGTIOHPILED 004B. 14, 1910. y I M I Eaented Nov. 12, v

, 6 SHEETS-SEE" N. E. DELL, AUTOMATIC GTE FOR RAILWAY GOSSINGS.

Patented Nw. 2, ma.

APLIOATION FILED 00T. 14, 1910.

5 SHEBTSSEEET 3.

Uzssas N. E. BELL. 'TQMT GATE FR RAILWAY CEGSSGS. v Ammcwon man 001mm ma. v

Eaentsdimov. l2, w12. 5 Simms-SHEET 4.

N. E. DELL. AUTOMATIC GATE FOR RAILWAY GROSSINGS.

APPLlOAlION FILED OGLHl'L 1910 atented Nov. i2, M12.

Lmso?,

5 SHEETS-SHEET 5.

UNITED STATES P.

Iton-iraitl n.

DELL, OF COBOURG, QNTARIG, CANAD, iSSGNOE GF TE-THLLB TG MARTIN JEX & COMPANY, F COBOJRG, GNTREO, CANAD.

AUTOMATIC ciers ron naiiiwair-cnossines.

Specification of Letters latent.

Application filed Gctober l, 1919. Serial No. 53?,.8'85.

To all whom it may concern:

Bc itknown ythat I, NORMAN E. DELL, a subject of the King of vGreat Britain, and resident of the town of Cobourg, in the county of Northumberland, Province of Une.

scribed in the following specification andi illustrated in the accompanying drawings that form partofthe same.

The invention consists essentially in vthe novel construction and arrangement ot' parts, whereby the gates are lowered and raised by a powerv driven mechanism controlled by electrically operated means, said electrically operated means being actuated y by the movement of trains on the railway.

The objects of the invention are, to protect highways crossing railroads, to reduce the cost of maintenance for protection, and

'to devise a positive automaticaliy operated device for lowering and raising the gates.

In the drawings, Figure 1 is a perspective view of a set of gates fora railway crossing showing-the means for operatively connecting the several gatej arms together,l parts of the gure being broken away. Fig. 2 is a perspective view of the main operating' mechanism, parts thereof being broken away. Fig. 3 is a' diagrammatic view .showing the wiring of the system.--Fig. 4iis a perspective view,shown partly broken away, of ithe crossing signal. 5 is an en larged perspective detail, shown partly broken away, of the rail switch mechanism. Fig. 6 is a perspective detail of a portion of the mechanism illustrated in Fig. 2. Fig. 7 is an elevational detail view of theclutch shifting mechanism for the main shaft oi lthe gate lowering mechanismfd ig. 8 is an enlarged perspective detail ofthe outer end of one of the gate arms shown partly broken away,k i

to the shaft t within said casings.

Like immer-.ls of reference indicate responding parte in each figure.

`lit-eierring to the drawings, l are gate arms pivotally supported 'from the casinss 2 and suitably counter-balanced, each said arms having a sprocket wheel 23 off secured 5 is a shaft supported in suitable bl iings below the level oi the casings 2 nai g the sprocket pinions 6 secured thereto ein. connected by the sprocket chains Z- to two the sprocket wheels 3.

8 is a sprocket aneei secured to the s 5 at one end thereof and 9 is a rope drinn also secured to the shaft 5. y

10 is a shaft operatively connected to shaft 5 by the miter gears 11 at one and to`a shaft 12 operating the two opposite gates by the miter gears la is a casing arranged adjacent to gates having a top 15 thereto and a pair ot upright posts l5 projecting through and esitending above the top l5, said posts having the vertical slots 17 therein adjacent to top. v

1S are signal larms hinged adjacent their upper ends and to the posts 16, the np per ends thereof being adapted to swing into the slots l?. The arms 18 are suitably' inscribed with a warning to' indicate when a train is coming and they are hidden iroin sight from the high-way between the casing sides '19 secured to the outer sides of said posts'when in their vertical position.

20 are signal boards slidably arranged be tween the posts 16 and heldin place by the guide Strips 2l. f

22 are cords s-ecured'to the upper edges ot the the signalboards QG and extending over the ULL.

16. The side members 24 terminate a con siderable distance above the cross sill 25 ex` tending between the posts so that the said signal boards will be visible when drawn downwa rdlv.

On the do\'vn\\'ard movementl of either the signal boards, tla` correspontilit', is a rabatt sul'iported in suitable bear- L ings mithin the easing l-l.

2T is a spur gear wheel secured to the shait :lo and hashing `with the spur pinion secured to the shat't oi the electric motor 29.

Bt) is a sprocket. pinion secured to the shaft 2b.

3l a shaft 'journaled in suitable bearings within the casing lv-l.

3Q is a sprocket wheel rigidttv secured to the shaft bl. and operativeljv connected with the sprocket pinion il() by the chant 33.

3l is a sprocket pinion rotatably mounted on the shaft 3l and having a clutch member 35 formed on one end ol the hub thereot'.

53o is a longitudinalljY movable clutch member noirrotatively secured to the shaft .Il ant" adapted lo engage the clutch portion ot the pinion 34.

'lT is a rope drum rotatably supportetfl upon the shaft 2li. and having a clutch member 38 formed on the end thereof adjacent to the movable clutch member b5 and adapb ed to be engaged thereby.

is a Sprocket secured to the outer end of the drum 38.

40 is a sprocket chain connecting the pinion 34 with the sprocketv wheel S.

ilV is a lever pivotally secured at one end within the casing 14 and having the divided portion 4-2 extending above and below the sliding clutch member lti and pivotallv secured tlicreto.

42% is a pivotal latch arm supported at one end from the casing 14 and having a notch 44 in the top face thereoi adapted to receive the outer end of the lever to hold the clutch member 3b in engagement. with the dann clutch 38. The latch arm -lll is spring held upwardly by the spring It3.

Alt will be seen from this construction that when the clutch member 3G is in engagement' with the clutch 35 of the sprocket 34. the arms will be operated through the. chain llt) to swing downwardly on the rotation of the motor in one direction.

4G are track switches located on the rail Way a'considerable distance from the highav' erossine'. '.l`he switches 40 are 'formed of a pair of contact mentbers 4T and 4S cured at their outer ends within a casing fit) arranged beneath the rail 50.

.il is a Contact plate secured to the upper side ot the pivotal member 4:7 at its outei."`

end and having a wire 52 leading therefromA is a. contact plate secured to the underside of the outer end of the pivotal tnea'iber 4S and electrically connected with a wire 54. The Wires and 54 are Vcarried to the easing il. 55 are rodsl having t'orl: shaped lower ends pivotallv connected to the members li' and 1S and extending npwardl)v thrcugb tbe oriliccs 5t', in the top ot .said casing and ha ving the rigid are-shaped heads 5T arranged 70 close to the side of the r'til head.

5S are springs rigidl)v secured at their outer ends to the ties 5t) supporting tbc casing lh and arching up\\'ardl to support tbe rods of and contact members -lT and Yl5 in 75 their raised positions. The beads TIT ot tbc rods 5.3 are thus spring held so that the tlange ot the wheels olf a train approaching the crossing willlcngage the beads and swing the'contaet men'ibers -lT and lS downwardly 80 in succession so that ih e contact plate .33 o' the niembertl will be brought down upon and engage thecontact member .'l on the member di'. I

The operation of the contat-l members -lT and 4S in the manner described'- establishes an electrical connection between the wiresl .TJ and ."i-l when the train is traveling toward the crossing in the direction indicated by arrow in Fig. 5 but in the event otl the train 90 backing up the member 1S will be depressed lrst and the contacts' 51 and .32) will not come into engagement the one with the other.'

""be inner walls of thc top and bottom portions of the casing' may be suitably insulated 95 to obviat'e the short circuiling of the current through the casing.

(S0 and (i1 Fig. (i are a pair of horizontally arranged .shafts journalcd in bearings .sup ported .from one ot the sides of the casing 10@ i4, each of said shafts having a grooved pulle \7 G2 and drum 63 and a beveled gear ttl. The beveled gears v(A are preferably formed with the teeth extending onlyv onedialf the way therearound and are arranged facing 10,-) each other atl the inner ends of the said shafts.

(35 arev weighted cords secured to the grooved pulleys (ii), the cord ol one puley being arranged depending from the opposite side to that of the other pulley.

nti and tiT are latches pivotalllv supported benaith the grooved pulleys trand having the tooth members (t8 adapted `to extend into notches G9 in each of the said `grooved pali 115 levs, .said latches being spring heltl b v the spiral Springs 70 to holdthe Said teeth in the notches in said pulleys.

7l and 72 are electro-magnets supported immediately beneath the `latches G6 and (37 120 respectivelyv and adaptedl to operate the a1'- inatures 73 secured to the respective latches adjacent to the toothed end. The wire leading from the track switch iti arranged at one .side ot" the crossing is electrically connected to thel electro-magnet T1 Fig. 3 and the wire 52 from the track switch arranged at the other side of the crossing is clectri call)v connected to the electro-magnet' T2 and the wires from each of said track switches l oni beneath l are electrical ,f

und 'l2 is completed cy the el adjacent to the latches gland 82 and conota ly secured to the inner side Wallet the electrically connected to an electric hat` ieri; Tftinclosed Wit-hln the casing; 1a. lhe 1 t, tric circuit to electroanagnets 71 and To and "2"? Fig. a pair of weighted ar pivotally supported at lone end within the casing' 7S and 70 are cords connected to the outer ends ot the 'mand 7? respectively, said cords leadingA upwardly through the vertical :using S0 n: lo and through the cross sill L5 and e i connected at the upper end to one ot' the' danifjer signal boards 20, Elf he arms 0'? T7 are sul'liciently heavy to pull the signnl' 20 downlvardly and swing its cori nid Q arm 18 upwardly,

L and 82 aie pivotal latches supporting" outer ends ol? the weighted arms l@ l T7 respectively held oy the springs 81a and 8f. p

83 and'lll are levers pivotally supported 8G and 8l are cords connected tothe lower ends of the' levers 83 and Se respectively and secured to the drums 03 secured to the shaft-s and 61 respectively. l

The closing of the electriccircuitthrough either of the magnets ller l2 draws on the armature ?3, consequently pulling downwardly upon the corresponding latch or 07 to. release the grooved pulley. The Weighted cord scoured to the said pulley rotates the shaft released, and turning, the drum thereon pulls on the cord 86 or 87, as the case may be, thus swinging; the correspendin@` lever F58 or to draw the latch 81 dr r1.2 iree ot' the corresponding Weighted n inlined `Lly the latch is withdrawn the 1Weighted arm 76 or 77 the said arm nails downivardly uponthe si gnal board to which it is attached. coincidently swingiiiig the corresponding signal arm 13 outY 7ardlj.y to indicate to travelers on the highway the direction from which a train is approaching and that it is close hy.

Q I a three point electric switch pivd thereto the upper ends by `the erasing 1il ubeneath the weighted arm 70 and spring held out olf contact with its terminals and adapted to he swung into cont et with its terminals on the downward movement or" either of the Weighted arms 'l0 or 77, said weighted arms hating the pins tlllprojectingr therefrom adapted to engage said switch to throw it into its closed position.

00 F is an electric vbattery or other source oi' electric supply, el nccted to three et the terminL or the switch 88. r`he three contact postsot' the switch 88 connected as tollcivs:---one to an electric lighter lights arranged above the 'fig inc'losingthe signal boards 20. Y enother.v olf said terminal posts is elec cctrically conl ing 14e, the return'wires leadingto the battery 90 so that the lights will he lighted and the bell sounded on the closing ot' the said switch. switch 88 iselectrically connected tnrough the wire 93, the electric switch 04 arranged in one of the cas-ings 2 and operatively connected with one oi' the gate arnis, and the Wire '95 to the motor 29.

QG-s the return Wire leading romthe motor to the battery 90. The electric switch 04 is spring held to close the circuit to the mo; tor' 29 'While the arms are in the raised position and remain closed until the arms reach their lowermostA position when the said switch is thrown open by means of a flexible connection 97 secured tc one of said arms and to said switch.

. :From the foregoing description it will he readily apparent that on a train approaching a crossing and engaging the track switch L16 the switch 88 Will he closed and the several signals operated las described and the arms will at the same time be lowered to protect the high-Way. The arms remain in their closed position during the time the train is passing the crossing and are not released until the last car has moved clear of the crossing. The railway rails at the crossing are-insulated from the main line ci? rails to torni the sections 98 and to these sections are connected the Wires 99 4and 100 leading to an electro-magnet 101 arranged within the casingl 1li, the circuit to said inagnet including the electric battery 102` and the circuit is closed by the Wheels of the cars traveling over the rails.

103 Iis a member pivotally supported .mid- Way of its length' and Weighted at the end extending'over the electro-1nagnet 101.

1041 is a short pivotal lever supported from the side of the magnet 101 and torming an armature thereto, the outer end of said lever armature beings'pring` held to hold the inner end in contact with the weighted end of the member 10S-clear or' the said magnet.

105 is an electro-magnet supported adjacent to the opposite end of the pivotalinen'iber 103 to Which/is secured an armature 10G.

10T is Ian arm pivot-ally supported above the member 103 and having a curved loiver end resting on the top ot' said member at its outer end. The arm 107 is electrically ,connected through the Wire 10Sy to the hat- .tcry 90.

cent to the underside ot the arm 10.? though itris normally. ont of contact with said arm,"A

The third terminal post oi the 109 is 4an electric contact arranged adja-Ilirc iso

tact 109. The contact 109 is electrically connected to one of the terminals of the electromagnet 105 by a wire 110.

11.1 Fig. 2 is a shaft supported in suitable journals within the casing 14 having a crank 112 formed intermediate of its length.

113 is a grooved pulley lixedly secured to the shaft 111 andv having the weighted`c01d 114 attached thereto.

115 is a pivotal lever having a tooth 11G extending into a notch 117 in the rim of the pulley 113 and holding said. pulley and shaft 111 from rotation.

118 is an electro-magnet supported beneath the toothed end of the lever 115 and adapted on being energized to draw the said lever downwardly to release the pulley 113 and shaft 111. The wire 119 Fig. 3 leading from the magnet 105 is electrically connected to the magnet 118 and 120 is a wire leading from said magnet- 118 to an electric switch 121 spring held in a closed position, thel opposite terminal of the switch being' connected to the battery 90 through the wire 122.

123 Fig. 2 is alcver pivotally supported at one end and weighted at its outer endand` having the slot 124 therethrough intermediate of its length.

125 is a grooved pulley fixedly secured to the pivotal end of the lever 123.

126 is a pivotal latch member suitably supported from the frame of the device within the casing 14 and spring held in en gagement with the weighted end of the lever 123 and holding it lin vits raised position. 127 is a drum fixedly mounted on the shaft 111.

128 is a cord secured to the drum 127 and at its other end to the latch member 126, said cord being wound upon the drum 127 upon the release of the pulley 113 withdrawing the latch 126 and releasing the lever 123.

129 is a cord attached to the pulley 125 and extending downwardly around an idler grooved roller 130 and attached to the outer 'end of the lever 41.

131 is a cord attaching to the outer end of the lever 41 and extending over a grooved roller 132 supportedirom the side of the casing 14, said cord having a weig t 133 attached to its lower end and holding the lever 41 normally so that the clutch member 33 is held in operating engagement with the clutch portion of the sprocket 34. On the withdrawal of the latch member 126 from engagement with the lever 123 the said lever swings downwardly drawing ,on the, cord 129 and swinging the lever 41 on its pivot to release the sprocket 34 and to operatively connect the drum 37 with the shaft 31.

131' is a shaft supported in suitable bear'- .ings between the uprights 1G and having a sprocket wheel 135 secured thereto.

13G is a sprocket chain connecting the sprocket wheel 135 with the sprocket pinion through the casing 80, the upfper end 39 on the shaft 31, thus operatively connecting' the shaft 134,to be rotated in the direction indicated by arrow following the release of the lever 123.

' 137 is a spur pinion secured to the shaft 134.

138 is a rack formed at the lower end of a vertically arranged rod 139 and meshing with the spur pinion 137. The rod 139 is slidably held in suitable'guides 'in the frame of the casing 14 and extends upwardly thereof projecting through an-ori ce 140 in the sill 25.'

141 is a cross bar secured to the upper end of the rod 139 and adapted to receive the lower edges of the danger signals 20 when said signals are drawn downwardly throu h the operation of the gears 78 and 79. n the rotation of the shaft 134 the. rack 138 and rod 139 are moved upwardly pushing the danger signals 20 up within the easing 24 and allowing the arms 18 to swing back to their normal hidden positiony 142 is a drum secured to the shaft 134 immediately above the lever 123.

143 is a cord attached to' the drum 142 and extending downwardly through the slot 124 in the lever 123.

144 is a. weight secured to the lower end of the cord 123.

145 is a stop secured to the cord 123 a short distance above the Weight 144 and adapt-ed to engage the underside of the lever 123 to swing saidlever upwardly as the shaft 134 is rotated.

146 is a spur pinion secured to the shaft 134 and meshing with a rack 147 horizontally supported in suitable guides.

148 is a rod secured to one end of the rack 147 and having a downwardly turned hooked outer end 149 adapted to engage the crank 112 of the shaft 111, to return the ooved pulley 113 and its weighted cord to t e normal position, coincidently releasing the latch 126 so that when the lever 123 is raised to its uppermost position the springr latch will engage the outer end thereof and hold it securely.

150 is a spur pinion secured to the shaft 134:

151 is a rod vertically supported in suitable guides andV having a rack 152 formed on its upper end adapted to mesh with the spur pinion 150. The rod 151 is supported vertically above the outer end of the pivotal latch lever 43 and said rod being moved downwardlyon the rotation of the shaft 134 engages the'outer end of said latch levler pushing it flownwardly to release the lever 4.1 at the proper period.

153 is a cable wound upon the drum 37 and operatively connected with the drum 9 on the gate shaft 5. The drum 37 is rotated coincidently with the sprocket 39 -`and insegno? i gf;

'ough the cahlel svvingsthe gates upwardly.

15e is a beveled gear secured to the shaft 13; and meshing with the gears 6-1 on the sliatfts 60 and 61, said gear' having the gaps in the toothed acethereot. 'ihe teeth t the gears 6,4 extend only halt way around and the gaps the gear 15e are arranged so that when the shaft is at rest the gears (Sel will. he free to rotate independently of the gear 151i, thuslallowing the shafts 60 and 61 to rotate treely on the release ott-he latch members 66 and 67, Gn the rotationv oit thershatt 134 in the manner described the j gearlll will mesh with the teeth of the gears 6l and rotate the shafts 6()V and 61 tov 'return them to Jtheir normal position, that is, with.. the teeth of the latches 66 and 67 en# gaging the nothes in the grooved pulleys 62.

156 isanfelectric switch arranged Within the'casing 1l directly opposite the switch 121 (shown only in Fig. 8) and spring heldk to its closed position.

is a flexible oord connected to the switch 156 and to the clutch lever e1, said cord 1seing arranged to held the switch 156 open when the elntoh lever 1s in its normal position and the gates being lowered.

158 is oord connected to the clutch lever t1 and to the switch 121" and adapted .to

'operi t-lieswitclr 121 on the swing-lng of the lever to the reverse position. lhe cord 157 is loosened 'oy the movement of 'the clutch lever eoincideiitly with the tightening of the oord 158 so that as the switch 1:56 is closed4 the sa/iteh 121 is o enedn y a- Wire lea ing from one terminal or thesvvitolo 156 to the motor 29.

166 is a' wire leading from the other ter mina-l, of the' switch 156 to the battery 90.

161 (Fig. 8) are supplemental arms pro looting outwardly from the ends Yoi the main portion of each of the gate arms 1 each ot portions 162 secured to the upper and'loiver and Vrigidly connected to the bolt 163 pivoted in the outer end ot the arm 1.

16st a spiral spring encircling 'the bolt ltliand having one'end thereof secured to said oolt and the other end to the arm exerting a springpressure on said holt and said supplemental arno. The upper strap 162 extends beyond the holt 163 beneath the arc-shaped guard 165 rigidly secured to the outer end of the arm 1 and is held against the tension of the spring 216i by a vertically arranged latchld, the latch 166 engaging the edge o strap and being held up-.

War-illy by the spring 167.

16S is a rod extending horizontally across the arm 1 adjacent to thel'ateh 166 and havingl a cam 169 secured thereto adapted to en! en the projecting portion' 170 ot said latch.

171 is an arm secured to or forming partr said supplemental arms having the strap' with therod 168 and arranged at right an gles thereto and having an eye 172 formed on its short downwardly extending end andv the upper long end suitably Weighted.

173 is a thin liat bar pivotally supported on the bolt 1711 and having one end extending beneath the guard 165 and engaging the upper portion ot' the arm 171.

175 is a pin extending laterally from the end of the bar 173 and engaging the arm 171 to retain the Weighted end in the raised position. rlie opposite endof the har 173 extends outwardly at an Vangle from the supplemental arm 161 andisheld bythe spring 17 6 with the short end engaging the 'lug' 177 secured to and projecting upwardly :from the upper strap 162. Each of the sev eral arias are constructed in a` similar mam ner withL the hars 173"projecuting inwardly toward the railway. tt"`f Y 178 are cords secured tothe eye 172 on the ends or t-hetarms 171 anthahging looseljT in suitable supports along the arms 1 and are secured at the opposite ends to the casings 2.

179 are cords secured to the inner ends of the upper strap members 162 and secured at their other ends to the casings 2. The arrangement ot supplemental arms on the inner ends of the armsl is devised to ohviate the accidental trapping of a horse and vehicle or person upon the tracks when a train is approaching, that is to say, in the event ot' a train approaching and the arms are automatically lowered While the person is driving over the crossing, a means of egress is provided. ln the operation ot this portion or the de'- vicethe horse or person presses lagainst the bars 173. 'These hars are very 'light and swing quite reelynpon their pivotsl otilering very little resistance. The swinging of either of the bars 173 withdraws the pins 175 from engagement with the Weighted arm 171 and saidarm turns the rod 16S and through the'cain 169 withdraws the vlatch 166, thereby loosening ,the 'supplemental arxn and said supplemental arm immediately rswings upon its' pivot being actuated hy the` spring 164, thereby` making 'an opening.

for the` person or vehicle to pass through the gates, the loar 17S inr each case being carried around with the supplemental arm hy the lug 179 engaging theinner end of said rloar and swinging iton 'its pivot. ln the operation of the gates, 'a train approaching the crossingf operates the track switch at one side of the crossing i'n the manner described, thus closing an electric circuit to the. magnets 71 or 72 according to the di '.recrion troni which the train is approacl`` ing. Gn the energization of either' of the said magnets the corresponding latch is Withdrawn trom the weighted pulley and the vweight being released rotates the shaft los gms

wardly' draws down the danger signal and ment swings the pivotal arm 10T upwardly.

otal on which the pulley is mounted and winds up the cords Sti or 87 as the case may be` thereby pulling on the respective lever 83 or S1 to release the corresponding latehl holding up the pivotal weighted member| 76 or 77. On the release/.of either of they weighted members or .77 the said member t Swings downwardly on its pivot drawing downwardly on the cord attached thereto and operating the signal in the manner described. The cord on being pulled downthrows out the corresponding signal arm, thereby indicating the direction from which the train is approaching. Simultaneously with the movement of the signals, the switch 88 is thrown downwardly by the pin S9 on either of the pivotal weighted members engaging the] same and said switch closes an electric circuit to the lamps 01 and bell 92 and also closes the circuit to the motor 29 within the casing 1l. The clutch lever 41 is normally held by the weight 133 so as to operate the Sprocket chain Q0 and shaft 5 to swing the arms 1 downwardly, thereby preventing the crossing of the tracks inadvance of the approaching train. W'hen the first pair of wheels of the train enters the bloclt v0S an eleetric'circnit is closed through the wires 99 and 100 througlrthe magnet 101. The magnet 101 being energized draws` the lever armature 101 downwardly allowing the weighted end of the pivotal member 103 tifs .fing downwardly. This move- The weighted member romaine in this position until the last pair of wheels of the train leave the block 98. The electric eircuit through the.electro-magnet 101 is then broken and the armature 101 being released is thrown upwardly by its operating spring and throws the weighted end otl the member 103 upwardly, allowing the pivotal arm 10T to swing downwardly into electrical contact with the contact 10S). .\n electric circuiti is thus closed through the electro magnet 105 and the arn'niture. 10G is at tracted thereby, thus holding the said piv member 192') with, its armature end down vard. ("oineidently with the operation ol' the member 103 the current: flows through the. electro-magnet 118 throwing the latch 115' clear ot' the grooved pulley lll. The weight suspended t'roin the pulley lll rotates the .shaft lll. The rotation of t'he shalt 111 winds the cord 1% upon the drum 12T. thereby pullin; r the latch 126 to release the. lever 12?). The weighted lever ti then swings downwardly rotating the putte)` .t2-" and pulling upon the cord 129 swings the clutch lever l1 upon its pivot, releasing the driving connection between thtI halt ill and the sproeke Slt. The

arrestingxot the armsl 1 on reaching their downward position is not dependent on the operation of the lever -ll but the said arms swinging downwardly draw upon the cord .)T (Fig. 3) 'so as to open the switch lll `:t the limit of their downward moven'ient, th t. breaking the electric circuit to the motor 29 and arresting its movement. As the lever -tl is swung upon its pivot, the clutch member 30 is moved into engagement with the clutch 21S and eoiiwidently the switch 12h is opened and the switch 1.30 allowed to close in the manner hereinbefort` described.

The opening of the switch 121 breaks the electric circuit to the magnet 110 and as the armature 100-is thus released, the lever 193 is turned on its` pivot but the weighted end thereof and the opposite. end coming in contact with the'pivotal member 107 breaks, the circuit at the contact 109. The closing of the switch 150 completes the electric circuit through the -wires 150 and 160 to the motor Q0, thereby starting the said motor into operation. As the clutch on the shaft 31 is now reversed the cable 153 is Wound upon the drum 3T and through the drum 9 and connecting gear swings the gates upwardly. Coincidently' with the upward movement of the gates the sprocket 135 is rotated thus turning the shaft 134. The rod 130 is moved upwardly through the rack 'and pinion 138 and I3? to return the signals to normal and coincidentl-'y the cord 143 is wound upon the drum 142; thereby rais ing the lever 123. The rod 148 is operated by the `movement of Vthe shaft 134 to return the. shaft 111 to its normal osition and the rod 151 is moved downwardly to engage the latch 43, thereby freeing the lever 41. The lever 4l in swinging back to its normal position opens the electric switch 156 and allows the switch 1'21 to close, thereby bringing the connecting parts back to their normal position. The switch 88 is opened by the spring 88% The. wiring and arrangement of parts shown and described are for a double track system, but it will bc readily understood any number of tracks may be equipped so that a vehicle traveling in either direction will operate the device to protect the crossin lVhat I claim as my invention is 4 1 In an automatic gate for railway crossings. a. pivotal gate arm, a si nal, an electric motor operatively connecte to raise and lower said gate arm, an electric circuit to said motor,. a switch' arranged in said circuit normally held open, a gravity actuated member adapted to operate said signal and to engage and complete the electric circuit to said motor, and effect the closing of the gate, means for holding said gravity actu-- ated member out of operation, n'ieans actu ated by the movement of a train toward the crossing for releasing `said gravity member, means for arresting the downward llt;

llo

movement of gate arm,'and means for re turning the gate arm and signal to their normal position.

2. ln an automatic gate for railway cross ings, a pivotal gate arm, a signal, an elec-` tric motor operatively connected to raise. and lower saidgate arm, an electric circuit to said motor, a switch-arranged in said circuit normally held open, a gravity actuated member adapted to operate said signal and to engage and close said switch to com'- plete the electric circuit to said motor and effect the closing'ot` the gate, means for holding said gravity actuated member out of operation, electrically operated meansfor releasing said gravity member, yan'electric track circuit leading from said releasing means, a track switch arranged in said cirl cuit and adapted to be closed by the move- 'ment of a train toward the crossing, means ior arresting the downward movement of the gate arm and means operatively con.

nected 'with said. motor for returning said signal Aand gate arm to their normal position. i

3. ln an automatic gate for railway crossings, a pivotal gate arm, an electric motor operatively connected to raise and 'lower said gate arm, an elect-ric circuit to said motor including asuitable electric current supply. and havingIl a switch normally held Aopen, a pivotal weighted member operatively connected with said switcli and adapted on being released to close the same,

a latch vengaging the-free end of said weighted member and holding it in a raised position, a lever operatively connected to said latch and adapted to withdraw said latch from engagement with said weighted member, gravity operated means for swing-- ing said lever on its tulcrum, means for holding said gravity operated means, electric means tor releasing said holding means, an electric circuit connected to said electric means, a track switch included in the latter electric circuit and adapted to be closed by themovement of a train onthe track, means operated by the movement of the gate arm for breaking the motor circuit, and means for' returning said gate arm to its raised position.

4. ln an automatic gate for railway crossings, a pivotal gate arm, an electricmotor operatively connected to raise and .lower said gate arm, an electric circuit to said motor including a .suitableelectric current supply and having a switch normally held open, a `weighted member pivotally supported above said electric switch and adapted to swing downwardly and close the same, a latch engaging the free end of said weighted member and holding it in a raised position, a lever operatively connected to said latch and adapted to .withdraw said vlatch from engagement with. said Weighted Vhaving a notch in another of the terninalsof three p a grooved pulley secure its cord secured to said gico .fed pulley, l member spring held in engagement trito c. notch in said weighted pulley, an electromagnet arranged. adjacent to said latcli and eripliery, weigh cio adapted to withdraw thesame from engageewg ment with said pulley, an electric circuit connected to said electro-magnet, a traclr switch included in. latter electric circuit and adapted to be closed by the motement of a train toward the crossine. for arresting the downward movement o the gate arm, and means forreturning said. gate arm to its raised position.

5. ln an automatic gate `Sor railway cross ings, a gate arm, means tor raising and loweringsaid gate arm, gravity operating means for startinf said gate operating means into operation to lower the gate, electrically operated means conr signal operatively conrolied by the movement of trains on the track for releasing said gra f `ity .operated means,

nected with said'gravity member and non mally hidden adapted on the release ot1 said gravity me aber to be displayed, means for raising sa gate arm, and means for retnrning said signal and gravity operating means to tneir no mal position.

6. ln automatic for railway crossings, a gate 'arm arranged to entend across the liiglisway crossing, a casing arranged adjacent to said arm and having a pair ot guides extending vertically above the top thereof, a pair of signal arms pivotally supported from said'guides and having suitable inscriptions thereon, cords connected to the inner ends ci said pivotal arms, apair of weighted pivotal members supported within said casinfr and operatively connected one 'to each ci said cords, means tor hold ing said weighted members in their raised positions, means controlled by the movement ot the trains on said traclrs'for releasing said holding means, means operated by said pivotal members on their release for actuating said gate lowering, means, means for controlling the movement of said gate lowering means, and means operated by the move ment of the train for causing said gates to be raised.

l". in an automatic gate 'for railway cross ings, a gate arm, an electric motor operatively connected withsaid gate arm, .anelectric circuit leading to said electric motor including a suitable electric current supply7 a three point switch included in said elec-` tric circuit, a signal light connected to one terminal ot said three point switch and to the return wire to the electric current supply, an electric bell electrically' connected to lOll three lpoint switch against its spring hold-- ing means, means actuated by the movement ofithe train on the rail-way for releasing said gravity operating means. and means 'for returning said gate arms and said gravity operating means to their normal position.

S.l ln an automatic r1ate tor railway crossings, a pivotal gate arm suital'll)7 supported, a casing arranged adjacent to. said arm, a shaft supported in suitable bearings within said casing. a motor suitably geared tosaid shaft, a member rotatabl)7 supported on said shaft and operatively cormeeted .to said gate arm to lower said arm. said rotatable member having a clutch face on one side thereof,

a drum rotatably mounted on said shaft and having a clutch tace, opposing the clutch 'lace et the aforesaid rotatable member, a cable secured to said drum and operatively comiected to said gate arm to raise same, a clutch member slidablv and nonrotativelv arranged on Said shaft and adapted to be moved thereon to engage either one ot' said rotatable members, a clutch lever pivotall)7 snpport'etl at one end and pivotallv connected to said slidable clutch member, means connected to said lever Yfor norlnallv holding said clutch member in engagement with the tirst' mentioned rotatable member. means l'or swinging said le\cr to discngage said clutch member from the ment with the second rotatable member. means tor loclting saidlever in the changed position. means tor releasing said locking means. means operated by the movement ot a train toward the crossing tor starting Said motor` means Vfor stopping said -n1otor, means il'or returning said starting means to normal,

:t cable drum cured to said shalt. a casingV arraorcd adjacent to said sha l't. a shal't yifmrnaled within said casing, a motor operalirst mentioned'v clu ch member and moving it into engagetively connected to said shaft, a sprocket pinion looselfl mounted on the latter shaft, a sprocket c ain connecting said sprocket wheel and pinion, a cable drum loosely mounted on said latter shaft, a cable se cured to and extending between said drum, a clutch member slidably arranged between said sprocket and rope drum on the latter shaft and adapted to engage either oll them, a clutch lever operating said clutch men'lher, a weighted cord attached to said lever and adapted to hold said clutch mcmlar in engagement with said sprocket pinion to lower the gate arm, means for swinging said clutch lever totree said sprocket pinion and tio bring said clutch member into engagement with said cable drum, means for starting the motor to lower said gate arm, means for stopping said motor on the ,lowering of said arm, means for operating said lever shifting means, means for locking said lever in its shifted position, means for starting said motor to raise said gate larm, means for returning said lever shitting means and its operating means to normal, and means for stopping said motor when all the mechanism is returned to normal.

l0. In an automatic gate for railway crossings, a gate arm, means tor lcwering said gatearm, means for raising said gate arm, a clutch member Amovablvsupported and adapted to bring said gate lowering or raising means into operation, a lever connected to said clutch member, means for normall holding said lever to hold said clutch in operating connection with said gate ldwcring mechanism, a weighted lever ,supported above said clutch level'. a lexiblc cord connected to said clutch lever and weighted lever, a latch adapted to hold said means Jfor locking said clutch lever to hold the clutch member in operating contact with said `gate raising means. means l'oraetuating said gate lowering means operated bv the movement ot a train on the. rail-waiY toward the crossing,1neans `for actuating the gate raising means actuated b v thc passage ol' a train on the raiLWay, means for releasing said lever locking means, and means lor returning the actuating mechanism to normal during the raising ot' the gate.

11. In an automatic gate tor railwa)r crossings, a gate-arm, means tor raising said gate arm, a clutch member movably supported and adapted to `bring said gate lowering or raislng meansinlo operation. a lever connected to said clutch member7 means tor normally holding said lever lo hold said clutch in operative connection v/ith said gate lowering mechanism. a neigllled lever supported above said clutch lever. a llcxible cord connected to said clutch level' llt ai aalailtnw ving a notch therein, a latch member having a. tooth extending into the notch in said pulley and spring held thereto, an electromagnet 'arranged adjacent to said latch and adapted on being energized to withdraw said latch to release said pulley, electric means for controlling the energization of said electro-magnet operated by the movement of a train on the rail-way,"automatic means for operating said gate lowering means actuated by the movement of a train approaching the crossing, and means for returning the aforesaid mechanism to normal during the raising of the g-ate.

12. In an automatic gate for railway*A crossings, a rail-way having a section at the crossing electrically insulated from the main line, a gate arranged at said crossing,

mechanical means for raising and lowering said gate, electrical means actuating the gate lowering mechanism actuated/by a tram approaching the crossing, wires connected one to each rail of the insulated section and connected to a suitable electric current supply, an electro-magnet included i-n the open circuit tormed by said wires and rails, a lever armature pivotally supported above said electro-magnet and spring held from the core of said electro-magnet, a pivotal member having a weighted end supported by said lever armature, a pivotal arm arranged above the opposite end 'ot' said pivotal member and engaging same, an electriccurrent supply connected to said pivotal arm, an electric contact arranged in closeA proximity to said pivotal arm when'it is in its normal position,

an armature secured to said pivotal member at the opposite end to the weight, an electromagnet electrically connected to-said elecy tric contact and arranged beneath the armature on said weighted pivotal member, a wire leading from said electro-magnet to the latter electric supply, means for disconnecting and arresting the gate lowering mechanism, gravity operated means for starting said disconnecting' means into op:

YYYeration, a latch holding" said starting means,

an electro-magnet adapted to. release said latch, a wire connecting said latch voperating magnet with the magnet arranged beneath said Weighted pivotal member, means for I'breaking the circuit through said pair of elccti'o-iiiagfiets. means for operating the gate raising mechanism, and means for returning the whole mechanism to normal.

lf3.' lu an automatic gate for railway crossings, a pivotal gate arm, mechanical means for lowering said gate arm, mechanitric motor operatively connected to said lowering and raising means, an electric current supply, a wire leading trom said current supply to said motor, a return wire from said motor to said current supply, an

electric switch arranged in the first wi're and spring held opcn. means actuated by a. train on the rai-way tor closing said switch, an electric switch spring held closed arrangcd in thc lattcr return wire. means.

connected to said gute arm t'or opening thc latter switch to break the motor circuit when the gate arm is lowered. means 't'or shitting the mechanical connection ot said motor from engagement with the gale lowering means to en .eagcment with the gate raising means. an electric circuit ccnnected to said electric current supply. a lswitch in said electric circuit spring actuated to close the circuit and noi'lnully held open by said shitting means and allowed to close on the shitting oie-said mechanical connection, an electric circuit connected to said electric current supply and normally held open.

vmeans included in the latter electric circuit forv actuating` said shittingmeans. and electrical' means for closing said latter circuit operated by the mo`veinent ot a train on the rail-way.

ll. ln an automatic gate tor railway crossings, a pivotal gate'arm, electrically operated means for lowering'aml raising said gate arm. a shaft suitably journaled adjacent to said operatingr means. a sprocket wheel secured to said sha't't, a sprocket chain connecting said olicrating means with said sprocket wheel` means tor shifting the operating connection otsaid ope ating means from the gate lowering mechanism to the raising mechanism. means coni'iected to said shaft for` returniiml said shitting means to normal, meurs operated by a train on the rail-way tor actuating said electrical operating means, means operated from said shaft for returning said actuating means to normal, signals for indicating the approach of a train operated by the movement ot' a train toward the crossing, and means operated from said shaft for returning said signals to normal.

In an automatic gate for railway crossings, a gate arm, mechanical means for lowering` and raising said gate arm, means operated by u train approachingI the crossing itor actuating said lowering means, signals operated by the means for actuating said lowering mechanism to display a danger sign, means tor actuating said gate raising mecl'ianism operated by the movement ofa train on the rail-way, a sha'tt operatively connected to said mechanical` lowering and raisingmechanism, a gear wheel secured to one end of said shaft and operatively connected with the means for actuatcal means for raising said gate arm, an elec- A ing the gate lowering mechanism and adapt g slidably supported and having a rack meshed to return it tdiloriiizil, a plurality of f ings, a gate arm,a casing'arranged adjacent `to swing them outwardly, a pair of latch 'on the trackeway one to each side of the spur pinions secured to said shaft, a rod to said gate arm, a pair of signals piv-otally supported above said casing and adapted to swing outwardly therefrom, a pair of Weighted members arranged within said casing and operatively connected to said arms members supporting said weighted members, a pair of short shafts journaled in suitable bearings within said casing, means operatively connecting said shafts with said latch members and adapted on the rotation of said shafts to' operate said latches'to release said weights, weighted members secured to said shafts and adapted to turn said shafts in their bearings, means for holding said shafts stationary, electric switches arranged crossing and adapted to be operated by the movenient of a train toward said crossing, y electro-magnets arranged to release the means for holding said shafts from turning and electrical] connected to a suitable elec- 1, tric current supply and electrical-ly connected one to each oit" said track switches, bevel gears secured to the adjoining ends of said shafts, a shaft arranged in right angu g lar relation to the .said pair oit shafts and l 'I mid-way between the bevelgears thereon, 'a

bevel gear secured to the latter shafts and Varranged vto engage both of the bevel gears on said pair of shafts and having aps 1n the toothed face thereof arranged iametrically opposite vthe one to the other, means for rotating the latter shaft to return the aforesaid shafts to their normal positions, means for lowering said gate arm coincident with thel displayingot' said signals, means for raising said gate arm, and means for returning said signals to normal coincident with the raising of said gate arm.

17. In an automatic gate for railway crossings, a gate arm, mechanical means for lowering and raising said gate arm, electrically operated means for actuating the movement -of said mechanical means, a pair of pivotal and arms arranged beside the rail-wii adapted to overlap at their inner en s and spring held apart, anelectric contact arranged on the upper side of one of said arms electrically connected to a suitable electric current supply and to said electric actuating means, an electric contact arranged on the underside of the other pii otal arm adapted to engage the aforesaid contact onthe overlapping of said arms inione direction, said latter electrical `contact being electrically connected through suitable wiresto the said actuating means, said pair ,of arms being adapted to be depressed by the movement of the wheels of a train on the track toward the crossing to close the electv c circuit to said actuating means.

Signed at 'the town 'ol lobourg in ihr county of Northumberland, in thu lrcmwr of Ontario, in the Dominica rt ('nuula. this 17 day ot Septmnhi-r lulu.

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