US1577128A - Automatic gate - Google Patents

Description

March -16 1926. v 1,577,128 v G. wv. KING AUTOMATI C GATE Filed De@ 19, 1924 2 sheets-sheet 1 gwwintoz @Cheung i Patented Mai'. 16, 1.925.

To all whom it, may concern: Be it known that I, GEORGE citizen ofthe United States, residing vat Burrton, in the county of Harvey 'and VState GEORGE -W. KING, OF BU RRTON,KANSASL AUTOMATIC GATE.

Applcation'led December 19, 1924. ,Serial No. 756,915.

1V. KING', a

ofy Kansas, have invented' certain new andv f useful inprovenients in'an Automatic. Gate,

of which the following is a specificationQ This invention relates to improvements in y'mechanically operated gates and has for its principal object to provide one which is disposed across theroadway, the same being adapted tobe opened automatically in either direction by the approach of a vehicle, thus obviating the necessity ofthe driver of the iv'ehielefhaving to leave the saine and open the gate in order that the vehicle may pass Another important object ofthe invention through.

is to provide an automatic gate of the above mentioned character, wherein means is provided for holding the gate in an open position se that a vehicle may pass therethrough, said means being adapted to be released vwhen, the vehicle has passed through the gate opening, additional meansbeing provided for returning the gate to its normal closed position;

A still further object ofthe invention is to provide an automaticggate of the above mentioned character, ywhich will at all times bel positive and eificient init-s operation, suit-YV able trip mechanism for actuating the gate from either sidebeing disposed within the road bed in thgepath ofthe wheels 'of a vehicle.

A still further object is to provide an automatic gateof the above mentioned character, which is simple in construction, ineX` pensive, strong-'rand durable and furthermore adapted for tliepurposesfor which it is desi gned.

' Other objects andadvantagesof this inl ventioii will become .apparent during `the course of Athe following description.

a part of this specification and in which like numerals designate like lparts throughout the same:

Figure 1 is a top plan view of the automatic gate embodying my invention.

Figure 2 is a side elevation of the gate. VFigure 3 is a sectional view taken approximately on` line 3+?) of Figure v2;

.F'gure'd is a fragmentary detailshowing'-l the segmental plate in side elevation' sup- 'ported Qnthe lover endet the gate;

In the accompanying drawing formiiig spectively are adapted-'to be" secured in Figure 5 is a top plan segmental plates.

.Figure' is -a fragmentary detail of the trip for actuating the rod' and chain assoview of one of the vciated therewith', and illustrating the means for actuating the latch, and

Figure 7 is a fragmentarydetail of the latch.

In the drawings, wherein for the purpose of illustration is shownthe preferred embodiment of my invention, the numerals 1 and 2 designate a pair of spaced posts which have their lower ends embedded in Va roadway adjacent-thev side thereof. Dis- -posed between the spaced posts istlie gate designated generally by the numeral 3 and the same may be of any conventional con-- struction. at oneV end yon the post l as illustrated at fl and associated with'lthe opposite end of the gate is a pair of slidable boltsaand G respectively, the saine being adapted for engagement with suitable keepers 7 and 8 vrespectively, the latter. being carried by the post 2 as is more clearly illustrated in Figure 2 of the drawings. Y

The gate 3 is adapted to swing in a horizontal plane in either direction and for the purpose of normally holding the gate in closed position between the posts 1 and 2, a coil spring 9 is associated with the hinged end of the gate and the post 1. An extension l10 is formed on the lower end of the hinged end of the gate and is preferably in the form of a shaft. The extension is dis- .posed downwardly through the top of a suitable vhousing 11 whichis set in the road way A adjacent the post 1, the shape of the housing or casing 11 being more clearly illustrated in'Figures 1- and 3 ofthe drawings. The top of`the casing is furthermore adap-tedto extend Vsubstantially flush with the Isurface of the roadway as A clearly illuslars of the segmental plates in a rigid position on the .lowerl end of 'the' yshaft 10.

Notches' 1 6 and 17are yprovided inthe peripheral edges of the l segmental plates 12 andrespectively and the purpose thereof The gate is hingedly supported l will hereinafter he. nlore fully described.

pair oit levers i8 and il) are associated with the segmental plates l2 and 13 respectively. The levels are rotatably supported on the collars` ot the respective seginental plates adjacent the inner ends ot the levers, the outer ends or' the levers extending be :vond the segmental plates in the inanner clearly illustrated in Figures 3 and l.

The inner ends ot' the levers aie connected to suitable chains 2O and .31 respectivelv7 the ,salue extending overI suitl'ihle pulleys and extending upvvardlvY through the casing and being fastened to a chain .22 which extends across the gate 3 and is secured to the bolts 5 and (3 b v iueaus ot' the chains 23 and lhc purpose oflthis construction will hereinafter be more fully descrila-nil.`

Slidahlv mounted in suitable `guides .25 and t carried hy the outer ends` of the levers 18 and ll) resaieetively are the plungers QT and Q8. The inner ends ofthe plungers are adapted for cooperation with the notches 1G and 11T respectivelyv and are normallvY held out ot engagement therewith by nie-ans ol:l the coil springs ill. Arms and 3l are pivotallyY supported on the outer ends ot the levers '18 and t9 respectively. The inner ends ol the arms are secured to the outer ends ol the respective plungers by suitable link connections such as is inore clearly illustrated in Figure 3. The operation oi" the plungers will also hereinafter be inore fully described. p x

A chain 32 is secured at one end to the outer end oft' the arin 30 `and a similar chain .is secured to the outer end olt the other arin The chain 32 extends through an o`pening 34 provided in the inner side of the casing and extends over a suitable pulley 35 supported by the post 1 adjacent the surface of the roadway. The chain 33 entends through a, suitable openingr 3G formed in the inner side ot the housing or casing 1l opposite the open'ingt. The chain 33 is `disposed over `a suitable pulley 3l which is also supported hy the post 1 and isspaced from the pulley so that the chains will extend in the opposite direction,

A rod 38 is secured to the end ot the chain 32 and entends longitudinally adjacent the surface ol the roadway` A on one side ot the "tence, a similar `rod 39 heingsecured to the end of the otherl chain 33 and ezttelidng a long the side of the roadway on the opposite side `of the gate. The rods are of a suitable leng'thand are pivotallvr connected at their tuiteuends to the lower ends ot a pair of tirip levers 4t) and il reslliectivelvv. .Cach of the trip levers is pivoted adjacent its lowver eudona suitable block ft and a lateral extension formed on theupper end of each of the trip levers is disposed iinvardly so as to jhejvithin the path of the `wheelsof a vehicle 'when `the same A'approach'es 'the Vertical standards i3 and al are dispos al on opposite sides ot the gate at a point intermediate the blocks and the post l. A latch pivotally supportedon the upper end ot each ot' the standards, the saine being adapted for cooperation with the top ot the gate 3 `when the latter is swung in an open position in either direction, in a inanner which will `be presently apparent. Each ot the latches is operated by means oil an elongated rod etti which is pivotally secured to the inner end of each latch, the rod 48 extending downwardly and being connected at its lower end to one end ot the bell crank lover illavhieh is iivotally supported a at Lle on the lower en of each oi the standards. The opposite end ot each olf the bell crank levers is slidable on the rods 38 and 3S) respectively. The rods 38 and 39 are slidable through elve bolts 5l.` extending troni post a3. Springs 5l and 52 are disposed on the rods 38, 39 and iinpinge against pins 4:9 and 50 passing through the rod 38, 39 and against the eve holt, and normalljT hold the rods 38 and 39 and associated parts in their normal positions after they have once been actuated. The hell crank levers 4T are provided with slots tor receiving the rods 38, 3)j and the pins 50 will engage said ends ot the leversI to aetuate thein for relezsing the latch la which will otherwise gravitate to the engaging position shovvn in Figure 7.

The operation of niy improved automatic gate inav be brielly stated as follows: No1 inally the gate is held `in a closed position h v means of the coil springl 9 and the bolts 5 and G which cooperate `with the keepers T and 8. "lVhen a vehicle approaches the gate on one side thereof, the Wheels of the vehicle `vvill pass over the trip t0 which is located at a point relnote frorn the gate causing the rod and chain 38 and 32 respectively to he pulled in the direction of the arrows wllereby the lever 18 will be caused to rotate on the collar of the segmental plate l2 and cause the bolts 5 and 6 to he disengaged trein the keepers 'l' and 8. Simultaneously, the plunger 27 will be brought into engagement with the notch 1G and the segmental plate l2 will `be caused to rotate7 sinnlltaneously causing the svvinging movement of the gate 3 in an open position away troni the vchiele until they latchonthe upper end ot the standard, 14; y"engages the top of the gato, thereby holding the gate open so as to perinit the vehicle to `pass through the gateopening. p A

After the vehicle has passed through the gate opening, the wheels will come in com tact with the trip fell disposed on the opi posite side of the gate and the inov'einent of the tripel kin one directionnvill cause the operation of the rotlf'l) to r lease the latch on the' "standard lil frein eng ger-nient .with the'gate 3- and the spring- Qdvhieh Vhas-heen placed under tension duringk the opening 01' the gate will then return the same to its normal clos-ed position. Manifestly, the gate 3 will be opened in the same manner but in opposite direction when a vehicle approaches the gate from the opposite side,

the trip 41 being initially actuated to open the gate through the medium of the lever 19 and the segmental plate 13, Y

The provision of an automatic gate of the above mentioned character, will save considerable t-ime and labor and furthermore Will obviate the necessity oli the driver.

leaving his seat to open the gate in order that the vehicle may pass through the gate pening. Furthermore, a gate structure ot the character above described will at all times be positive and efficient in its operation. Y f

`While I have shown the preferred embodiment of my invention, it is to be understood that various changes in the size, shape and arrangement of parts may be resorted to Without departing from the spirit of the invention and the scope ot the appended claims. 1

Having thus described the invention,

what I claim is l. In combination, a pair of posts, a gate hinged to one post, latch means associated with the other post 'and the free end of the gate, a shaft on 'the hinged end of the gate, a segmental plate keyed to the shaft, a lever rotatably mounted on the shaft, a chain leading from the lever to the latcn means, a plunger slidable on the lever, the

arcuate plate having a notch engageable by the plunger, a spring normally holding the plunger out of engagement With the notch, an arm pivoted to the lever, a link 'connecting one end of the arm with the plunger,

a chain attached to the other end of the arm, and means for pulling the last chain, thereby swinging the arm and engaging the plunger in the notch, at the same time swinging the lever to pull the lirst chain so as to yrelease the latch means and as the last chain is further pulled, the lever locked to the segmental plate by the plunger `Will rotate the shaftV and swing the gate, means for releasably latching the gate in openposition, and spring means for closing the gate.

2. In combination, a pairof posts, a gateV hinged to one post, springmeans for nor-r mally holding the gate in a closed position bef tween the posts, latch means associated With the other post and the free end of the gate, a shalt on the hinged end of the gate, a segmental plate keyed to the shaft and provided with a notch, a lever Vrotatably iounted on theishaipt, a chain leading from one end of the lever to the latch vmeans,

a plunger slidable on the lever and engageable With the notch in the arcuate plate, a spring normally holding the plunger out of engagement With the notch, an arm pivoted to the lever, a link connecting one end ot' the with the plunger, a chain at- `GrElRGrE W. KING.

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