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Publication numberUS1468471 A
Publication typeGrant
Publication dateSep 18, 1923
Filing dateAug 30, 1920
Priority dateAug 30, 1920
Publication numberUS 1468471 A, US 1468471A, US-A-1468471, US1468471 A, US1468471A
InventorsJacob Harsen
Original AssigneeJacob Harsen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Roadway gate
US 1468471 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

lipatented Sept.. l5, '1923.

entre stare-s earner 'JACOB Hansen, or New YORK, n. Y.


Application jalea August eo, l1920. serial No. 406,942.

To' all 'whom t may concern.'

Be itjlrnown thatjLdAooe HAnsnN,a citizen orf the United States, residing at New York city, New` York, haue invented certain new Aand useful, Improvements Iin Roadway Gates,1of which thefollovring' isa clear, full, and exact description.` i

' lll/ly invention relateslto gates and more especially to those gates adapted tobe moved acrossav roadway to-,temporarily prevent passage oftraflic, moreespecially vehicles,

and an object of my invention is to improve the, construction ofzgates of this character V.whereby they are` rendered safer. 115

@ther -objects and Aimportant features will become apparent from the following` detaileddescription and claims when taken in connection with the accompanying draw 1- ings, in Which- Fig.` 1 isi-asidey elevation of af portion of a gate showing electrically controlled means therefor;

Fig. 2 is asirnilaryieu showing pneugrnatic means -for controlling` the this view` also showing .the outorfendofthegate Eig. 3 is a view similar to Fig. 2 but show- `engagedby a suitable keeper;

the Vpartsin a different position; l. f Fig". .et is .broken planyiew showing the manner of connectng; they cable to the gate ,structure; and 4 A y, Fig. 5V isaldetailof the keeper.

It has been customary lt )pr'ov'idei vertically swinginlrgates to temporarily block traflioat roadways, especially at railway 'crossings and these gates hayeusuallycomlp rised one or more 'piyotedinemhers adapt ed to he operated by 'powermeans usually pneumatic. the atesvbeing balanced so that they mayjrather easily be swung from closed .to open'position, or`.v1ce versa When in Yclosed positionathe? merely extends across the roadway` but if a vehicle runs finto such a gate, there is -`@great4 danger of theigate lifting` and permitting: theV vehicletopass under it.,` ,lMy invention directed Yso more lpartijcularly'- tof a grate structure Vin .-Whicht-he grate is locltedli'n Vclosedposition so that it would be almostiinpossible for a vehicle to --lorealrl through, even should y accidentally run the gate. It is obvious thatthe kindV of -poyver employed is immaterial, and in ztheparticnlar,embodiment of my invention lpghave shown a gate operated `both hy electrical and luy-pneumatic power.

.Referring to. the draWings, Fig. 1 indicates my improved gate operated electrically'. ln this form of device, a support 1 provided which may form the fulcruiin for the gate and may also provide a housing for the motoil 2, which motor is adapted to move the gate by means of a beveled pinion 3 connected to the motor shaft 4.-, said pinion cngjapjing beveled gear 5 mounted on a shaft 6, which carries a Worm .7 engaging a sector` 8 forming' part of, or rigidly attached tothe ,frate 9, said gate'pivoting'about a Vfulcrum 10. rEhe motor is adapted to be run in either direction and, `as will be readily seen, movement thereof in one-.direction will act to move the gate from closed position indicated in Fi 1 to open position. rlhe motor is supplied- With current `from line Wires 1l and 12 under control.l of a switch indicated atfl, the circuits being indicated diagrainniatically in the figure.

When the 'switch 13 is in full line position,

' .which is that shown in Fig. 1, current Will flow through the Wire 12 to the Wire 14, through the field magnet of the motor, through `Wire liandback through the switch to the Wire 11; Current Will also flow throunhthe ivire 1G to the motor armature,

returning; through the Wire 17 to theother the keeper between it and the hook when the gate is closed, so that When'the lock is in operative position it will be impossible to raise the .frate until the bolt'is again released. lirclerahly l control the bolt auto- `matically in .such amanner that it is moved to locking position as the gate reaches closed. position. and I also preferably'provide nleans whereby the holt is released concomitantly *with the Startin of the openingr movement ofthe `gatefln order to control the lock in the device illustrated inhig. V1, Whereinfthe gate is shown as electrically controlled, theA bolt 21 is connected to the core 22 of a solenoid 23. Mounted in alignment with this solenoid 23 is a second solenoid24, the core 22 being common to both solenoids. As the gate movesV to closed position, af contact 25 on the sector S makes Contact at 26 so that a circuit is closed through the solenoid 22, the circuit tiowing' troni the Wire 1 2, through the Wire 14, to the point 27. Yifi-oni this point the current flows through the wire 28 and the Wire 29 to the contact 25, to the Contact 26, Wire 80, through solenoid 22, retui'iiing` to the other side of the line through the Wire 31.

FifergrizationA othe solenoid 122 results in shooting the bolt to positiouto loc t the gate aiidth'is occurs just as Vthe gate reaches closed position, the hoolt 2O having' passed throuiih the keeper 18, as illustrated in Fig. 2. Vihen the sivitch 13is inoved to dotted line position shown in lig.V l, so as to reversethe V(flirection oit 4cuarent passing through the ii'iotor, current Will also beV suppliedgto the solenoid'l., and under these` conditions current rivill liioiv trein the wire to thepivire 32, togthe point 53, through Wire 345,'to solenoid 2l; returning,r through Wire to the point 36, through the switch, to p int? and back to the o thrrI side of the line.` The bolt will theretoie be .released dueto,'energiiatioii of the solenoid 24 coneoni-itantly with the supplying' of current i to the rnotor to raise tlie Lgat@ ln the forni of device shown in ligzjsl 2 and 3, the isoperated by air pressure. andV in this rtorni ot device l have also utilized the air pressure to operate the bolt, both to lock and Vto unlock the saine. ln this torin v"l-f" fl'l l "V l'lQl v"l vorc ei ice. a uic piessuie cy int ei et, unie i maybe of usuali construction, inay pro- :vided vvitliin the housing 1, said cylinder having a piston which inay he c(iunectedV With a rack 39 engaging a toothed wheel. 4.-() carried .by the gate, which is pivoted 'at'.vftl.. Fluid pressure is suppliedto the cyliiulerT 38*l hy ineansot pipes 42 and 43. Thesepipes inav lead to an Vau' pump or to -any suitable source Vot 'l'liiid supply. Vln Fig. 2 ytheparts vare shown in the position Y they occupy when the gate is closed and locked. With the parts in this position, therefore, the first thing to be done is to releasethe lock, ,and this is accomplished by admitting Kfluid vpressure `to the rightA side of a fluid pressure cylinder 44 mounted on the Q;ate, saidcylinder having, a piston tol ivhichlis connected the holt. 21. An

air` supplyl pipe- 11G leads from the cylinder onA the rinfht side of the 'piston to a diaphragnied chamber 1LT. The 'pipe 413 also leadsinto this chamber and opening' from Vit is a pipe 18 supplying' fluid pressure to 'the cylinder above the piston. '.llhereloi'e7 ivhenair or other fluid isradinitted to the Ipipe 411B, it passes into thediaphragm chainber .117 and thence tothe pipes 4G and 48, actuatingthe bolt 21 and Aalso supplying "tluid pressure to the cylinder 38 yto move 'the gate to open; position. l

ln order that the bolt inay be moved to i/ieeavi Y im thei'noveinent of the gate to opened position'.`

When the valve is in the position indicated in Fig. 3, passageway from' the chamber '56 to a pipe 57 leadingto the other end of the cylinder 4A is closed. l/Vhen 4it is desiredto close the gate,` fluid pressure fis admitted th rough the :pipe d2 and enters the chamber 56. A pipe 58 leads from the chamber V56 Y to the loiver portion of the cylindergso that when the pipe l2 iszo'peneth'tluidjpressure enters the underside of the piston in the cylinder SS'raisingthe same and causing the gate to lower. VSince the passageway to the pipe 57 is elosedby the valveflQ', as indicated in 3, no `tluid pressure will be supplied at this time to the cylinder 14, and

therefore the `bolt will remain inoperative. However, aszthe gate reaches closed posi# tion, the pin 52 bears on the. earn edge 59 of a-,canilever 6 0, said leverat its other end engaginga pinl'on thelever', thisfent Y gageinentwresulting inthe rocking vet said i'e'ver and moving the valve 49V from' lthe position shown in Figto thatshoyvn in Fig. 2, thereby permitting the fluid pressure in the chamber 56 to il'oiv through the pipe 57 and into the cylinderlld at its. lef't'tviiandend,

outto the position shown in Fig. 2, thereby locking the'gateto the keepeu In bothfconstructions described, the bolt is moved "to locking positionas the gate reachescclosed position,- and asthe power1 is applied to inove as shoivnfcin Fig. 2. Theholt is then shotf ilo the gate, the bolt is autoni iticallyreleased.V 'i Since the framework otgates oi this general character is made comparatively light and would not be suiiicientlystrong to resist breaking WheninV locked position if .struck by a vehicle `at tiers-time, in order tov strengthen the gate and to vprevent ac-vehicle from breaking it andpassing through the 4fate in case lit should accidentally strike it', l provide a cable indicated at 6 J.l`his cable has its'ends Vfastened into screw 'eyes Y Gil whichscreiv-eyes are connected to across piece 65 forming. the end of a sleeve 'nieni- 1 ber 66, this member engagingoveran en-V 1arge`d .portion 67 connected totheibolt. A

springfG-Ifig. 1, is interposed between the .innerendot the sleeve and theendoi the 4rneinbe')367 So thatftlie sleeve has limited slidingr noveiiient. 'A suitablel stop 69 'roay ciently strong wire to resist any strain which Y it is likely to be calledupon to withstand.

VWhile I haveshown at least two practical embodiments of my invention, it is of course to be understood that various other forms maybe used within the spirit of the inyention and that some of the parts Vmay beused without others. i

lNhat claim as new is:

l. In 'a gate structure, the combination` with a gate, of power means for moving the- 'gate, a'loclr for said gate including a bolt, a,

iiuid pressure cylinder into whichv said bolt enters, a piston in said. cylinder connected with the bolt, means for admitting fluid pressure to one side of said piston to move the bolt to unlocking position concomitantly with the applicationl of the power means to open the gate, and means controlled by movenient of the gaterto closed position for admitting'tluid pressurevto the other sideof said piston to actuate said bolt to locking position.

2. In a gate structure, the combination ing a bolt, a fluid pressure cylinder linto Y which said bolt enters, a piston in said cylinone side of said Vpistonwhen said valve is,

in one position and cutting oit said supply witha gate, or" a loelr tor said gate include when in another position, and means on the gate for controlling said Valve.

3. In a gate structure, the combination with a gate, of a lock for said gate including a bolt, a fluid pressure cylinder into which said bolt enters, a piston in said cylinder connected with the bolt, a source of fluid pressure, a valve connecting said source with one side ot said piston when said valve is in one position and cutting off said supply` when in another posit-ion, and means on the gate tor opening said valve as said gate reaches closed position.

In a gate structure, the combination with a gate, ot lock ilor said gate including a bolt, a fluid pressure cylinder into which said bolt enters, a piston in said cylinder connected with the bolt, a source of fluid pressure, a valve connecting said source with one side of said piston when said valve is in one position and cuttingoit said supply lwhen in another position, and means on the gate for opening said Valve yas the gate reachesclosed position and tor closing said valve as the gate opens.

5. ln a gate structur, the combination with gate, ot a loclziiigbolt therefor, extending longitudinally of the gate,ia guide for said bolt, a cable looped around one end of said gate and arranged longitU-,dinally| thereof, and means for resiliently supporting the ends of said cable ior limited Inoveinent, said supporting means comprising a sleeve mounted for sliding movement on said bolt guide.

Signed at New York city, N. Y., this lst day ot June, 1920.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2663103 *Nov 21, 1950Dec 22, 1953Ellison John A TFlexible toll barrier
US2924031 *May 20, 1957Feb 9, 1960 Hydraulically operated farm gate
US4333268 *Mar 4, 1980Jun 8, 1982Dumbeck Robert FEnergy saving electrically actuated barrier gate control means operable from solar energy
US5871038 *Jun 14, 1995Feb 16, 1999Ijot Development, Inc.Remote controlled mechanical chain barrier
US6135190 *Sep 4, 1998Oct 24, 2000Ijot Development, Inc.Chain barrier
US6192627Nov 18, 1999Feb 27, 2001Ijot Development Inc.Lead screw barrier system
US6349503Nov 18, 1999Feb 26, 2002Ijot Development, Inc.Fluid powered barrier system
U.S. Classification49/280, 49/334
International ClassificationE01F13/06, E01F13/00
Cooperative ClassificationE01F13/06
European ClassificationE01F13/06