US1671873A - Automatic railroad gate - Google Patents

Description

May 29., 1928'. 1,671,873

H. M. PURDY' AUTOMATIC RAILROAD GATE Filed J I N VEN TOR.

HerZer'LM-Purdy,

ATTORNEY' H. M. PURDY AUTOMATIC RAILROAD GATE May 29, 1928.

3' Sheets-Sheet 2 Filed Jan. 13. 1928 EN VEN TOR BY flerleriflfurdy,

. ATTORNEY.

May 29, 192&

' H. M. PURDY AUTOMATIC RAILROAD GATE File d Jan. 13, 1928 3 SheetS- -Sheet 3 are my INVENTOR. HerbeftM-Pmd,

ATTO EY.

ing a pair of gate members and operated by e Patented May 29, 1928.

nnnnnnr m. runny, or MADISON, assassin.

UTOMATIC RAILROAD earn.

Application minimum 13, 1928. Serial No. Mans.

This invention relates to a railway. crossing closing mechanism, and has for its object to provide, in a manner as hereinafter set forth, a mechanism of such class includa train when approaching a crossing to position the ate members in a manner to close the crossing to prevent vehicles or pedestrians from travellin over the'tra'ck until the train has cleared t e crossing, under such conditions reducing accidents to a minimum. A further object of the invention is to rovide, in a orth, a spring controlled railway'crossing closing mechanismoperated by a train when approaching the crossing for closing the lat ter and maintained in position to prevent the vehicles or pedestrians from travelling across the track until the train has cleared the crossin whereby the possibility of accidents is re uced toa minimum.

Further objects of the invention are to provide, in' a manner as hereinafter set forth, a spring controlled railway crossing closing mechanism' which is comparatively simple in its construction, strong, durable,

thoroughly'eflicient in its use, automatic in its action, readily installed with respect to a track and crossing, and comparatively inexpensive to set up. i

With theforegoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more speci cally described, and illustrated in the accompanying drawings, wherein is shownan embodiment of the invention, but itis to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claims hereunto appended.

In the, drawings wherein like reference characters denote corresponding] parts throughout the several views:

Figure 1 is a top plan view of a railway track, partly broken away, showing the adaptation therewith of a spring controlled railway crossin closing mechanism in accordance with this invention and with the mechanism also broken away.

, Figure 2is a view similar to Figure 1 in side elevation.

Figure 3 is a fragmentary view in side elevation and upon an enlarged scale illustrating the spring controlled pull elements of the gate members shifting cables. 1

Figure 4 is a section on line 4-4 Figure 1.

manner as hereinafter set Figure 5 is a fragmentary View in elevation illustrating a pair of pulleys for a shift ingcable and a support for the pulleys.

Figure 6 is a fragmentary view in top plan, partly in section, of the cable pulling means.

Figure 7 is a fragmentary view in per spective of the depressible spring controlled pull membersiforthe gate members shifting cables. V

Referring tothe drawings in detail 1 and 2 denote a pair of trackrails providing a railway track and 3 indicates a crossin Adacent theouter side of each of the trac rai is arranged a hinged gate member and which are indicated at4, 5. The hin 'es of each ofthe gate members are indicate at 6. The gate members are normally ina flat position relative to the crossing 3, and when the mechanism is operated by a train, the

ate members are shifted to vertical position or substantially to vertical position and such arrangement of the gate members will close the crossing. The gate members will be arranged in closing position with respect to the "crossing 3 until after the train has cleared thecrossing. The gate member 4 at one outer corner thereof is provided with an eye 7 and the gate member 5 at one outer corner thereof ijsprovided with an eye 8 and to saideyesare connected shifting cables which are employed for elevating or swinging the gates 4, 5' to vertical position. The gates 4:,

5 return to normal position by gravity when the pull upon the gate shifting cables is released. The gates' l, 5 are simultaneously operated to closing position with respect to the crossin The is connecte to the eye 7 of the gate member .4 is indicated at 9 and the gate shiftingcable which is connected to the eye 8 of the gate member 5 is'indicated at 10. That part of the "crossing3 atthe' track can be formed of platform or anysuitable, material, and cut away at 11, 12 for the reception of the gate members 4, 5 when these latter are in inactive position and the hinges 6, that is the inner leaves thereof are anchored to the platform. The gate membersi, 5 are of a length to close the crossing 3 to an extent to gate shifting cable which prevent the passage thereover, at the track,

of pedestrians and vehicles. The width of each of the gate members 4, 5 can be as desired. h

Mounted appropriate on'the ties 13, at a point an distance from one side of the port 14 is a depressible pull member 2 are arranged in verticelly disposed openings, 18 and in; each opegi 18 is sepuredthe lower endofQ-a e t tie l disPQmdwm n gu d n taming rod 20. the traek rail and l pro gressively increase in lig g ht fro n the outer to inner end of 9. 6 215. l' h p" 4 w ppgrt, 15 is a depress bl ini mtm tfi he p ll. m mbers 21, 2 .t2ttend t. s. pwar z tlin ti n fromth i "Hts; 9. the nltsr n upp ts t, Thsn ter qdi t h pull member, s 1 forn edyqith alen thwiseezgtending S10E23. edistslxpyltnmm i r is pp i d nt s rer w ty ttrtqk ail Th nul mem ers te p ,es ytgu ds i x h r d 0, ut r also n ntsined irrplosepgsition to thetraek A lx ist l 0, d ut m t. Pull "tenths? is, lids .t onn t 1 ains he t er ade Qfithttbe ft th t k. wit a d f n f i ipur asestbs tZflt s us awi h c rail, and H extends merg rev at surest 8 ti t titrt it ended, bloe 't26 forme ,Wilii i) y disposed,

l fi p mbers are i qm e te iz y h el :1 Th ms ipp rend 25 mm t pattd;, t:. nu l mtm etw? 4 t i ,P- IQS kZQ' Theute end. 1 i he bl 'th. 26 s gr sd- 94 l h set t tefi ten ta. 2 P ue de r t meow eel Oval, h e lot. .0- etitedii h a 7 s: qmbi tdt ttr l we a; psl fiwe ngtl vtihe bl tkfls. T HINE 1 11 11 Peres. s ure i t 2b a bolt 3 and t e latter extends. tw gh' si ved 25; tf th t ll. ms berfi h ewe etehe l tk; 26- is e d t Witht; totkttv a s ernd 9f; he ring. J 1? The. ott m dge the RPPHH end lo,the i me{nberj2;1 seats ectly upon h 9k he ett m edg 0 th ype ntlfl' fi g mtm et 2 tate s me blpckfifig" The redyged. gupp'erpnds ot the pull members form shoulders or stops 34, which zibut against the sides of the block 326,; wh rebyv the, letter is retained between the Pull. member -'5 h q a p s n. of

Ptli m i r .t ettt r d ttt l e s .I :14 toililit can cant on The rods 20 are spacedjrom ,i h

diamete h ltbe. n th. hew

pull members issuch asto extend above the tread of the track railfrom the outer to the inner ends of such members. The inner endsof said members are the upper ends thereof. The extna'e or elevated position of the pull members is had by and against the action of the controlling spring 31. The Pll lLllitQQllbgFFflTQflH ed and depressed by the treads oi the W at of the rolling stock ayell 1W 11 h '&fl fi; l

S tlt Y nd pivo nllymwwsc di o he xtension b turstnt d n r 1 e d car yi ga p n 6, h i ni ierrendfi Qt bst qn r dd es svs te t mnd he put wr x'tends htei gl he SM 30 fi med h ehv ltt jng zmtwp a 1 null ve 14 av ng.

1 t m 996 il h ever. endi lietexttls vnflh. Rosi mned; wi r t snot rpirit h upmttsl 5 s amino w prim 4 stand rd tethip widt t s imm r; nd ith A ttin A he he tliteidmqiwt d the pull lever 34}.

htsinisltp yott r br enivn tat -pos tioned;

e wast i th mp d a i t thepu stantia y in 8, he pp st 'i rpt s r m er? h m ttr wi a g es w th. sp o he ,pull

with t ate member thermore Y yided a its l0" 6 a grooved gi illeylfid 4931151 591 aredjs osed at right apg smi h p l th, i n s h rac t limtr emt th-- the putt eableifianfl, ,brapket lj c opgrates with the pu hop 1e10," The ca les tr \I'el und r t ys carried b the braol ets'il'fti d fl hglfp ulleysfia carried by the, .bra'pkgts 47; andgoyerg the pulleys 49 carried by the braekets46f 41; nwsmxtendt tMsstcz. ember 1."

,1 in; m tr -(Pam f: tpr s bls P l e bers are t w td r h rolling stocks t spun; otters 34 are" moved h iryp iv ts' Amt. we; wh rtb i, th

t1 ltyttfi s n et t er .mtm r 2 2 9 4. tr ti ssdr ubn iwl sh: q ldr n 'f r'sfl l l PMIIQYPUU everfiit. m n ed atkins tr i tt i: tw p i t Plat:

y m l a h r, he: 3 t t the 9 41 tabs hyme r e-emirate e g 4, ss snett tl txht y 4 f 1 he n l IBYFFL Md, e R1111 qr mt ts. with h sst ey 0,-Qfthe; plat rm 31%:

'llp Standings a 1 8 1-- U Y' at i t WP i h 1 r qr tl, P nd s-1 thbtst it l f .POP 40m wheels hs sit ely therein, and the gate members will then I automatically move to inactive positio by gravity.

The mechanism provides means for shifting the gate members, automatically to active position, as a train approaches the crossing and the gate members will remain in such position until the wheels of the train clear the pull members, after which the gate members will assume their normal or inactive position. a

When the mechanism is employed in con nection with a single track, a mechanism will be arranged adjacent each side of the road crossing, one mechanism to be actuated when the train is travelling in one direction and the other mechanismvactuated when the train is travelling in the opposite direction. The mechanism can also be arranged in a manner to be used in connection with a double track.

It is thought the many advantages of a crossing gate closing mechanism, in accordance with this invention, can be readily understood and although the preferred embodiments of the invention are as illustrated and described, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

What I claim is:

1. A railway crossing gate closing mechanism comprising a pair of hinged gate members normally in a lowered position,

pull cables connected therewith for elevating said members, a pair of spring controlled suspended blocks, a pair of oppodisposed normally elevated pull members connected at their inner ends to each of said blocks and adapted to be depressed by the wheels of a train, a pull lever extending from and pivotally and slidably connected to each block, and means for connecting said pull cables to the outer ends of said levers whereby when said pull members are depressed the pull cables will be drawn in a direction to elevate the gate members.

2. A. railway crossing gate closing mechanism comprising a pair ofhinged gate members normally in a lowered position, pull cables connected therewith for elevating said members, a pair of spring controlled suspended blocks, a pair of oppositely disposed normally elevated pull members connected at their inner ends to each of said blocks and adapted to be depressed by the wheels of a train, a pull lever extending from and pivotally and slidably connected to each block, means to each block, means for connecting said pull cables to the outer endsof said levers whereby when said "pull members are depressed'the pull cables will be drawn in a direction to elevate the gate members, and a set of grooved pulleys for each of said cables.

3. A railway crossing gate closing mechanism comprising a pair of lunged gate members normally in a lowered position, pull cables connected therewith for elevating said members, a pair of spring controlled suspended blocks, a pair of oppositely disposed normally elevated pull members connected at their inner ends to each of said blocks and adapted to be depressed by the wheels of a train, a pull lever extending from and pivotally and slidably connected for connecting said pull cables to the outer ends of said levers whereby when said pull members are depressed the pull cables will be drawn in a direction to elevate the gatemembers, and a set of grooved pulleys for each of said cables, one of the pulleys of each set ositioned above the remaining pulleys o the set.

4. A railway crossing gate closing mechanism comprising a pair of hinged gate bers normally in a lowered position,

pull

mem-

cables connected therewith for elevating said members, a pair of spring controlled suspended blocks, a pair of oppositely disposed normally elevated pull members connected at their inner ends to each of said blocks and adapted to be depressed by the wheels of a train, a pull lever extending from and pivotally and slidably connected to each block, means for connecting said pull cables to the outer ends of said levers whereby when said pull members are depressed the pull cables will be drawn in a direction to elevate the gate members, and means for slidably connecting the outer end of each of said pull members to a track rail.

5. A railway crossing gate closing mechanism comprising a pair of hinged gate members normally in a lowered position, pull cables connected therewith for elevatin said members, a pair of spring controlle suspended blocks, a pair of oppositely disposed normally elevated pull members connected at their inner ends to each of said blocks and adapted to be depressed by the wheels of a train, a pull lever extending from and pivotally and slidably connected to each block, means for connecting said pull cables to the outer ends of said levers whereby when said pull members are depressed the pull cables will be drawn in a direction to elevate the gate members, a set of grooved pulleys for each of said cables, and means for slidably connecting the outer end of each of said pull members to a track rai hers normally in a isaidmembers, a

suspended blocks, a, posed normally blocks and adapted wheels ofa, train,. from i and, pivotally to, each block, m ea elevated or eleva i p q' fip i e c ntr j 1 pair of oppositely (lis-. pull members l pnw nected at their inner endsto each of, said to be depi'essed,by the a pull leverextendi anclslidahly connect ate closing mech w i e t o i o 1.

ture hereto. n s fol: connecting said pull cables to the outer ends of saidlevers whereby when said poll members are de pressed thepull cahles will be drawn ine 15 vate thegate members, aset of grooveipu leys for each offsaid ca h lifi one of; the pulleys of set position above the remaining pulleys of the -pset an d. means for slidalily conqecting the outer endeo of each of said pullmemhel sto a track rail. In testimony whereof, I aflix my signa- HERBERT: M.. PURDY,

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