US1500177A - Automatic liquid pump - Google Patents

Description

.my s. 1924.y y 1 1,500,177

W. S. AUSHERMAN AUTOMATIC LIQUID PUMP Filed Junel. 1923 2 Sheets-Shet l l V F/ I ff l l 7 o o -o j o o o 1 14,4 j: 2f :1 .f ZJ

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W.S.AU$HERMAN AUTOMATIC LIQUID PUMP Filed June l. 1923 2 Sheets-Sheet 2 Patented July 8, 1924.

UNITED sTATEs WILLIAM s. AUsHER-MAN, Yor TALM-Aen, KANSAS.

AUTOMATIC Applicationled June 1,

To all whom t may concern.'

' Be it known thatI, WILLIAM S. AUSHER- MAN, a citizen of the United States, residing at Talmage, in the county of Dickinson and State of Kansas, have invented a new and useful Automatic Liquid Pump, of which the following isa specification.

This invention aims to provide a simple coin-control for a dispensing pump 'of the sort used in handling gasoline Vandother liquids. The invention aims, further,` to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as Vthe description proceeds, the invention resides inthe combination and arrangement of parts and in the details of construction hereinafter described and claimed, itvbeing understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can `be made without departing from the spirit of the invention. Y

It is within the province of the disclosure to improve generally and to, enhance the utility of devices of that type to-which the invention appertains.

In the accompanying drawings Figure 1 shows in vertical section, a device constructed in accordance with the inven tion, parts appearing in elevation; Figure 2 is a section on the line 2-2 ofv Figure 1, parts appearing in elevation Figure 3 is a section on the line 3-3 of Figure 1.

In carrying out the invention, there is provided a support or casing 1 supplied at its upper end with a guide 2 and equipped at its lower end with a gland 3. The liquid to be disposed is pumped upwardly through a pipe 4 having a laterally extended spout 5,

. the pipe being connected to the lower portion of the casing 1 if desired. In the upper part of the casing 1V there is a coin chute 6. A coin placed in the chute 6 ultimately finds its way into a drawer 7 slidably mounted in the lower portion of the casing 1. VAt its lower end, the coin chute 6 has a substantially vertical mouth 8. v

A shaft 9 is journaled for rotation in the casing 1 and may be rotatedthrough the instrumentality of a crank 10 Yor otherwise. A ratchet wheel 11 is secured to the shaft 9 and is .located within the casing 1. The

ratchet wheel 11 is engaged by a back stopV paw112 pivotally mounted at 14. on the eas- LIQUID PUMP.

1923. Serial No. 642,846.

ing 1. The ratchet wheel 11 has a radial slot 15 wherein a wrist pin v16 is adjustably mounted, thereby to vary thethrowV of a pump .plunger 17 mounted for reciprocation in the Vguide 2 and in the gland 3,and 'constituting part of the mechanism whereby` the liquid to be dispensed is carried upwardlyk through the pipe 4 and outwardly throughv the. spout 5..v The lowerend of a pitman is mounted pivotally on the wrist pin 16 and the upper end of the pitman is 19 to the pump plunger 17.

On its periphery theratchet wheel -11 is supplied with a projection 20`located'to one side of the teeth of theratchet wheel. The

pivoted at projection 20 is adapted to cooperate with a detent orlever. 21, mounted to movev be# tween stop pins 33 on the casing V1 and fulcrumed intermediate its ends, as at 22, on a bracket. 23 carried' by thecasing 1.1 A hanger 25 is pivoted at of the detent 21.

A coin receptacle `is provided, and is de.- noted generally by the numeral 26. The coin receptacle 26 comprises oppositely ydisposed trough-shaped members 27, one of'which ts "fff 24 to the outer end slidably within the other, one of said memy bers having an elongated edge-opening for the reception of the lower end of the coin chute 6. At their upper ends, the members 27 of the coin receptacle are pivoted as at 28 to the hanger 25. One member of the coin receptacle has a vertically elongated guide 29 mounted to slide on'a bracket 30 which is carried by the casing 1. A retractile spring 31 is connected at its ends to the members 27 of the receptacle, to draw the lower ends of said members together. The inner walls of the members 27 of the converging cams 35.

In practical operation, a coin is inserted i into the coin/chute 6 and moves downwardly into the coin receptacle 26. weight of the coin in the coin receptacle, the detent lever 21 is tilted on its fulcrum 22 and, thus, the inner end of the detent lever is "moved out of the path of the projection 20 on the ratchet wheel 11. This operation sets the ratchet wheel free for rotation, and the ratchet wheel may be turned through the instrumentality of the shaft 9 and the crank 10. When the ratchet wheel 11 is rotated, the pitman 18 imparts reciprocation to the pump plunger 17,`and a quantity of'other Under the of the spout 5. When the ratchet wheel 11 is rotated, the projection 20 rides between the cams 35 on the members 27 of the coin receptacle 26 and spreads them apart, permitting the coin to drop from the coin receptacle 26 into the drawer 7. As soon as the projection 2O on the ratchet wheel 11 is free from the cams 35, the members 27, of the coin receptacle 26 swing back into the closed position shown in Figure 3 of the drawings, under the action of the spring 31. As soon as the coin receptacle 26 is relieved o the weight of the coin, the detent lever 21 drops back into the position shown in Figure 1 in contact with the lowermost stop pin 38, the inner end of the detent lever being disposed in the path of the projection 2O on the ratchet wheel 11. vI lVhen the ratchet wheel 11 has been rotated suiiciently, the projec tion 2O comes into contact with the inner end of the detent lever 21, and, thus, the action of the pump mechanism is stopped, it being impossible for the purchaser to secure a greater quantity of liquid than that called for by the depositing of a single coin. It is to be observed that the projection 2O exercises a two-fold oiiice. First, cooperating with the detent lever 21, it constiutes a means for stopping the rotation of the ratchet wheel 11, and, secondly, entering between the cams of the coin receptacle 26, it constitutes a means for swinging the members 27 of the receptacle apart, on their pivotal mounting 28, thereby permitting the coin to drop from the coin receptacle into the drawer 7. f

W'hat is claimed is:

1. In a device of the class described a coin receptacle comprising separable parts, a movable detent carrying the receptacle, a rotary member including a projection engaging the detent to hold the rotary member against rotation, the detent being movabley out of engagement with the projection under the weight of a coin in the receptacle, and the projection being so located vas to separate the parts of the receptacle and to permit a. discharge of the coin in theref ceptacie and to permit a return of the-de-l tent into engagement with the projection.

2. In a device of the class described, acoin receptacle comprising.;` separable parts, a detent lever, means for fulcruming the lever intermediate its ends, means for mounting the parts o1c the receptacle pivotally `on the lever, arotary member, and a projection on the. rotary member, the projection cooperating with the detentA lever to hold therotary member against rotation, the projectionbeing adapted to4 coact with said parts ofthe coin rece tacle'to bring about aise aration,

thereof and a discharge Lofthecoin,thereby permitting the detent lever, to return into the path of the projection. j'. i

AIn testimony .that Iclaimthe foregoing as my own, I havehereto afHXed my signaf ture in the presence of twowitnesses.,

AWILLIAM S. AU SHERMAN. Witnesses: l f B. MIKULECKY CLIFFORD RICE:

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