US1751073A - Automatic liquid-fuel dispenser - Google Patents

Description

March 18, 1930. c HY 1,751,073

AUTOMATIC LIQUID FUEL DISPENSER Filed March 28, 1928 INVENTOR I ATTORNEY Patented Mar." 18, 1930 N T D STATES PATENT OFFICE CHARLES BRAHY, OF BROOKLYN, NEW YORK, AS SIGNOR TO CHARLES i NEW YORK, 11'. Y.

n. Eamon, or.

A'UTOMA'1IC' LIQUID-FUEL DISPENSER Application and March as, 1928. Serial No. 265,257.

This invention relates to a liquid fuel dispenser of the type operated by a coin-actuated mechanism; the object being to provide a machine that will automatically dispense a given quantity of liquid fuel, such as gasoline, by

the insertionof a coin into a slot in the machine. Another object is to provide means to prevent the operation of the machine by a coin other than that of'a predetermined denomination. A-further object of this inven tion is to provide adjusting means, in a machine of this class, to vary the quantity of fuel dispensed, in accordance with price fluctuations, and to render the machine adaptable to 16 be set for dispensing difierent quantitiesof fuel for difierent coins.

Referring to the drawings: Figurel. is a 'front sectional elevation of the apparatus constituting the'invention.

Figure 2 is 'an enlarged fragmentary sectional' elevation of the coin-operating mechamsm. V

In the drawings, 1 represents the coin-slot communicating with the chute 2, which is 25 positioned over the temporary coin recepta cle 3. This receptacle is pivotally connected at 4, and is yieldably held against rotation by the hair spring 5. 'The balanced support 6, mounted on plvot 7 has fitted thereon the hair spring 8, adjusted to yieldably hold said support against rotation. The arm 9 is fixed to pivot 7, and contains a slot 10 within which is slidably positioned the pin 11 secured tothe link 12. The arm 13 of the levermounted on shaft 14 is pivotally attached to the link 12, and the arm 15 is pivotally attached to the tripper rod 16. Over this rod is the helical spring 17 positioned within compartment 18.

the said tripper rod is pivotally attached. to the lever 19 which is pivotally mounted at 20, one arm of the said lever being pivotally attached to the link 21 which is connected to the arm 22 of the meter 23; the other arm of the said lever 19 being positioned near the wheel 24 on which the tripper finger25 is suitably fixed.. Y I v The electric motor 26 is connected to 'pulley 27. by the belt 28', the shaft 29v ofsaid ulleycont-aim'ng a pinion the teeth of w ich 50 are in engagement with those on the wheel 24.

. the outlet openings 49 and 50 communicate,

-tively, the said contact point 57 being atcoin causes the said rece tacleto swing downwards, in a clockwise v pivot 4, against the action of the sprm' 5,-

The wheel 24 is mounted on shaft 30 which is supported by'the bearing 31 mounted on the support 32 which is suitably secured to the housing 33. The wheel'24 is rovided with the slot 34 within which is slida ly fitted the pin 35 which is provided with means to immovably hold said pin in any predetermined position within said slot. One end 36 of the connecting rod 37 is mounted-on the pin 35, the other end 38 being'pivotally connected at'39 to the piston rod 40 of the pum plunger 41. The gasket 42, positionedaroun the periphery of the 'said plunger, is fitted thereon in such manner as to allow a proper slidin movement of the plunger'within the cylin er 43. The fuelsupply pipe 44 communicates with inlet openin s 45 and 46 through'the one-way valves 4 and 48; and

through one wa'y'valves 51 and 52, with the hose 53. I

Two electric conductors 54 and 55 lead from a main source of current supply 56 to the motor 26 and the contact pomt 57 respectached to the spring 59 and to the magnet 60 of the solenoid 61; Adjacent to said pomt 57 is the contact point 58 which is electrically connected, by conductor 62, to the motor 26.

Thesolenoid 61 is electrically connected, by line 63, to the auxiliary source of current supply ,64,-and by line 65 to contact point 66, which is secured to the said' support 6. The contact'point 67, secured to the said rece tacle 3, is electrically connected, through con uctor 69, t'ossaid auxiliary source of current supply 64. The lamp is connected, by electric conductors 7 2- and 73, to the line 63 and the contact point 68, which is in contact with the point 67 when the apparatus is 1n 1ts normal starting position.

temporary receptacle 3. The weight ofthe until the contact .point' 67 comesinto a utment with contact point 66, thesprmg 7 be,-

ing adjusted to enable the support 6 to up- Ieo Whenacom 1s deposited into slot 1, it slides down the chute 2 and is deposited into the o5 rection, around the Y pulley 27, wheel 24, connecting rod 37, and

pis..on rod 40. I

As the wheel 24 completes a revolution, the tripper 'finger 25 trips the lever 19, thereby causing the rod 16 to move in thedirection of the arrow and causing the'link 12 to move upwards. This causes the arm 9 and consequently the pivot 8 to rotate in a. counterclockwise direction, carrying with it the support 6. The'receptacle 3 is now allowed to continue on its downward course, swinging about the pivot'4 until the coin 77 is dropped through the chute 74 into the coin box 7 '5.

When the receptacle 3 is thus relieved of the weight of the coin, the spring'5 will carry the saidreceptacle back to its starting position, thereby causing the contacts 66 and 67 ,.to separate. This breaks the circuit through the solenoid 61,'and consequently cuts oil the current through the motor, whereby the machine is brought to a stop.

When the machine is not in operation, the

contacts 67 and 68 are inabutment, so that the current fromzthcsource 64 keeps the lamp lighted.' As soon asa coin is deposited with-.

in the receptacle 3, and it begins to swing downwards due to the weight therein, the contacts 67 and 68 are separated, shutting off the current through the lamp, thereby indicating that the machine is in operation;

If a coin smaller than that of the predetermined denomination is de osited, it will drop down through the space between 78 and 79, and into the coin box, without operating the machine.

The spring is adjusted so that it will not yield under the weight of a coin-that is lighterthan a coin of a predetermined denomination. If the weight is greater, the receptacle 3 will swing downwards as before, but the added weight will cause the support 6 to swing downwards also, around the pivot 8,, as the spring 7 is adjusted to hold no more .thanthe weight of the proper coin. The receptacle 3 will continue to swing downwards until the coin drops down into the chute 74 and? into the coin box 75; and the said receptacle, now being relieved of the weight of the coin, willreturn to its normal position. 7 When the contacts66 and 67 are thus momentarily brought into contact, the circuit through the solenoid 61 is closed, but it is broken again before the slow-moving magnet 60 establishes contact 'between points 57 and 58, and in this way preventing the motor from operating.

, If there is but one tripper finger on the wheel 24, the plunger 42 will make one up and one down stroke, thereby supplying a corresponding amountof fuel through the hose 53. But if another'tripper finger 76 is secured to the wheelfl24 diametrically opposite finger'25, the tripping action will take -'place every half a revolution of the wheel 24, sothat the plunger will make either one up or one down stroke-for each coin deposited. In this way the machine can be set for a coin of a. given denomination, or for one of half that denomination. i

Each tripping action will simultaneously operate the tripping rod 16, and. the meter 23 through the link 21 and arm 22. This meter will thus indicate the number of coins deposited, thereby serving as a check-up.

To make an adjustment for fluctuating fuel prices, the pin can be fixed anywhere along the slot 34, thereby varying the length of stroke of the plunger 41, and in this Way controlling the amount of fuel suppliedper coin deposited. The one-way valves 47, 48,

51, and 52 permit a unidirectional flow of fuel from the main supply pipe 44 to the hose 53. o

.The drawingsand description herein refer to but one of several different mechanical.

forms and constructions that may be embodied in my design.

What I claim is 1. In an automatic liquid fuel dispenser of .the class described a coin-operated control box comprising, in combination, 1 a coin-deposit slot communicating with a chute terminating above a temporary coin receptacle having an electric contact point attached thereto; an intermediate releasable support for said receptacle, the said support having another electric contact point attached thereto; said receptacle being provided with means to enable the weight of a coin deposited therein to cause a downward movement of said receptacle until it comes into abutment with and bringing said points into contact with each other; means to trip said releasable support and remove it from its position where it upholds said receptacle, thereby separating said contact points and at the same time allowing said receptacle to continue on its downward course until the coin therein is caused to drop into a suitably positioned coin box; and means to bring said'receptacle and said supportback to their starting positions. '2. In an automatic liquid fuel dispenser of the class described 'a coin-operated control box containing a'coin deposit slot communieating with a chute terminating above a pivotally connected coin receptacle provided with means to yieldably hold said receptacle against rotation; a pivotally connected interrests upon said releasable support. thereby mediate support provided with balancing means to yieldably hold said support against rotation, the said support being positioned with respect to the said receptacle in such manner that when said receptacle is caused to rotate about its pivot due to the weight of a coin deposited therein, one end thereof will come into contact with and rest upon said support, the said balancing means being adjusted to cause said support to ield when the coin within the superimpose receptacle is of greater than a predetermined weight, thereby releasing said receptacle from its support and permitting it to continue on its downward course until the coin therein is caused to drop into a suitably positioned coin box.

3. In an automatic liquid fuel dispenser of the class described a motor-driven liquid fuel pump; a pair of adjacent contact points in series with the motor of said pump and a main source of current supply; electro-mechanical means mechanically connected to said contact points and provided with slow-operating means adapted to gradually bring said points i into contact with each other; a yieldably supported and balanced coin receptacle; means to cause sa1d receptacle, when a coin is deposited therein, to close the circuit through said electro-mechanical means; "and means to cause the said balanced receptacle, when the coin deposited therein is of greater than a predetermined weight, to break the circuit through said electro-mechanical means before a said slow-operating means bring the said points into contact.

In witness whereof I afiix m signature. CHARLE BRAHY.

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