US1759207A - Automatically-operated fence gate - Google Patents

Description

-May 20, 1930. F. ROSE ET AL 1,759,207

AUTOMATICALLY OPERATED FENCE GATE Filed Aug. 31, 1928 Ja fl/ fz/i/iflr Patented 'May 20, 1930 PATENT OFFICE F E e. nose AND JOHN H. MURRAY, on ROGKYFORZD, COLORADO g AUToMArIcALLY-orEaAr n nnncn GATE pl qa' q fi d Au s 31. 1 2 S ria .NO- 3113,17

This" invention relates to an automatic fence gate and has for its principal object the provision of a roadway gate which will be automatically opened by the weight of an 6 approaching automobile.

r 16 totie the entire structure together.

' Another object of the invention is to so construct a gate that it will remain-open until the automobile has completely passed the turn to the closed position. i

A further object of' the invention is to provide a gate of this character which can not be operated by cattle or other animals.

I Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and effithe near side of the enclosing box removed.

In this View the full closed position i i di cated at A, partially open at B a and fully open at C.

In installing the improved gate a box is imbedded in the roadway and across the fence line which is illustrated at 11. VThe sides of the box 10are raised as illustrated at 12, to act to guide the automobile wheels upon a runway 13. "At each side of the fence, and at opposite sides-of the box 10, a hinged board 14 is placed for a vportion of the runway the hinges being indicated at 23.

The gate proper maybeofany desired construction such as a seriesof vertical bars 15 separated by separating blocks 16. The gate is hinged upon an axle bar 22 which may be passed throughthe bars 15 and the blc iellis e gate is free to swing to a horizontal position at each side of the fence within the box 10.

The gate is normally held perpendicular axle bar 22. '19 connects the elevated extremity'of one Otto by springs 17 of substantially equal tenesion," The springs 17 are connected within 1 the extremities of the box 10 and connect which-is rigidly secured to the gate in a position to cause the two springsto pull in opposite directions in directalignment with the At each side of the gate, a link the hinged boards 14 at an angle to theiga'te bove the axle bar 22. p

In operation, an automobile is driven on to the runway 13, as the left front wheel rolls upon the hinged board 14, it will depress this board, as indicated in broken line at -B in Fig. 2, causing its link 19 to swing the gate awa from the car and downwardly intothe box 1 0 to the position' C. As the left front wheel of the automobile'leaves the first hinge board 14:, the front right wheel will be rest upon the second or opposite hinge board 14, which will act "to maintain the gate in its I lowered position. The right rear wheel final- .ly releases the second hin'geboard'after al lof the automobile wheels have left therunway and the automobile is clear of the gate. The springs 17'wi l1the-n return the'gate to its normal vertical position.

, It is desired tocal'l attention to the'fact that both springs operate simultaneously reg-ard-less of the direction the gate swings;

their tension increases equally; and both are provided with aiever arm for 'c'lo'sing the gate which increases in length as the-gate opens. The shape of the lever arm 21 is not essential since any lever construction which will maintain the spring attachment points inv alignment with and spaced from the "bar whenthe gate is openw'ill operate satisfaetoril'y: The gate strikes 'no obstruction in closing. It simply swings back too thenormal'po'sition, cushioned by the springs 17,

so that there is renatally nothing to b'e eome damaged by the continual eperation or the gate.

If desired, to prevent the hin e board from 'being depres ed tee rapidl leaf.

- spring-s eanbeseeured to these boards to eat as a cushion ti lerefer. Ordinarily, howo 7 that theywill prevent the gate from opening ever, these springs can be eliminated since the Springs 17 increase their tension at this time and willactas a cushion for the hinge boards. I

It will be noted that the gate always swings away from the automobile regardless of the direction approached.- The open box 10'prewent-S cattle or other 'animals'from approaching thegate and the angularly placed hinge boards 1d prevent an animal from forcing his 7 way between thegate posts and the gate, since any-weight upon these'boardswill causeth'ern to move downwardly, frightening the animal away.

The tension of the sprin s 1 7can besuch L ,underlesslthanthe weight of an automobile, 1 therefore, the gate could not ,be opened byan V animal or aiperson standing upon the hinge 20' v r I r ingpdevices may beplaced in theline of the boards14. QTurn buckles or similar'adjustspringsl'T, if'desired toadjustthe tension claim without departingfromthe spirit of theinvention; v

' -1. An automatic fence] gate comprising: a v

- thereof; fItisnotessential that the tension 7 of fi e two springs be equal since the gate will out of commission.

stillj function with one ofthesprings entirely While a specific form of the improvement ha s been described and illustrated herein, it isdesiredto be und'erstoodthat the same may bevariedwithin the scope of the appended Having thus described the invention, what we claim and desire secured by Letters Patent gate hinged across its lower extremity so as with the hinge ofsaid gate whenthe latter @is in the perpendieularposition and acting wout ofhorizontal alignment with said hinge I "when Said gate is in y other positionfthai "P pendicular, i r s l e I 2.- An automatiofence gate tor a roadway comprising: a gate pivoted below said roadway'soasto swing to either side ofsaid fence and toa' position. below said'ro'adway; depressible members insai d roadway; rigid; -members connecting saiddepressible members with said gate so that weight on saidde-' pressi'ble members will push said gate below tion;and means operable b'y the weight of vehicle for swinging said gate to said latter position, said means comprising a board-like member hinged at its one extremity and raised at I link extending downwardly and forwardly from the raised extremity to its other extremity and a} a; pivot on said gate, there being a 'similar construction at each side of said gate, so, that downward movement of said hinged boards will push said gatev downwardly and forwardly to a substantially horizontal posi 7 tion; y v

74. An automatic fence'gate for a roadway comprising a gatepivoted below said road:

to support a vehicleand be depressed by the weight thereof; rigid members connecting: v

said depressible members withjsai'd'gate at'a forward and downwardangle sothat weight 8o way so as to swlngto e ther side of said fence r and to a position below said roadway de- ,pressible members in said roadway arranged on said depressible members will pushsaid" gate away from said vehicle and below said roadway. 3 e p In testimony whereofl we afiix our signatures. v

r FRED G. ROSE.

JOHN H. MURRAY.

'o Hsaid-'roadway,;saidrigid members being c'on-' returningsaid gate-to the verticalgposijtion.

3. Anfautomatic fence gate comprisingzfa V gatehinged acrossit-s lower extremity so as 7' to, swing .to a substantially horizontal posilneoted between'said gate and said depressible r'members'at aiforwa'rd'and downwardangle 'sothat said gate willbe forced to swing away from an. approaching vehicle; and means for

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