US1981357A

US1981357A - Nozzle control of dispensers

Info

Publication number: US1981357A
Application number: US518946A
Authority: US
Inventors: Walter H Haupt
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-02-28
Filing date: 1931-02-28
Publication date: 1934-11-20
Anticipated expiration: 1951-11-20

Description

Nov. 20, 1934. w. H. HAUPT 1,981,357

NOZZLE CONTROL OF DISPENSER Filed Feb. 28, 1931 5 Sheets-Sheet l INVENTOR ATTORNEY Nov. 20, 1934. w, H, HAUPT 1,981,357

NOZZLE CONTROL OF DISPENSER Filed Feb. 28, 1931 5 Sheets-Sheet 3 lNVEN-TOR ylaw ATTORNEY Nov. 20, 1934. w HAUPT 1,981,357

NOZZLE CONTROL OF DISPENSER Filed Feb. 28, 1951 5 Sheets-Sheet 4 BY W N 1934- w. H. HAUPT NOZZLE CONTROL OF DISPENSER Filed Feb. 28, 1951 5 Sheets-Sheet 5 8 Q m Q Q 5 mm .mm o @w vm J| m WM E. mm 3. Wm WH No xvfin INVENTOR L/d.

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ATTORNEY Patented Nov. 20, 1934 UNITED STATES 1,981,357 NOZZLE CONTROL OF DISPENSERS Walter H. Haupt, Ludlow,

Ky., assignor to Augustine Davis, Jr., Cincinnati, Ohio Application February 28, 1931, Serial No. 518,946 r 25 Claims.

The invention relates to dispensers and more especially to gasolene dispensers.

The object of the invention is to provide a simple and reliable mechanical system for controlling a dispensing apparatus from the nozzle end of the hose through which the gasolene is delivered from the dispenser to the customers tank. The complete system of control includes the operation of a shut-01f and flow-regulating valve in the discharge conduit of the dispenser to which the hose is connected, a master valve controlling the supply of liquid or the application of liquid pressure to the dispenser, and a switch or other appropriate power-control organ for the motor which drives the pump. It is one of the objects of the invention to place such complete control of the apparatus in the hands of the operator at the nozzle end of the hose. However, parts of the system may be employed without others.

One aspect of the invention involves-an application of the Bowden-wire. I encountered various difficulties in the application of this instrumentality for the purposes of the invention but after considerable study and experiment these diiiiculties have been overcome.

I find that the Bowden-wire can be placed within the hose without being affected by the gasolene, which disposition is highly desirable though not necessarily essential. complete embodiment of the invention the core of the Bowden-wire is connected with a manually operable device associated With the nozzlev body and its other end is operatively connected with the valve in the discharge conduit. A shaft operatively connected with the Bowden-wire core and. with said valve passes through a stuifing-box in the wall of the discharge conduit and is con nected with an external linkage which acts upon a start and stop arrangement for the dispenser, this start and stop arrangement preferably controlling both the switch and the master valve to which reference has been made.

The Bowden-wire core can not be used satisfactorily under compression except on very light loads. Consequently, I have found it necessary so to organize the mechanism that the core is called on to act only intension, and-I have further ascertained that it is important for satisfactory control that the loads transmitted in this manner be kept as small as possible. On the other hand it is necessary that the valves to be opened by the pull of the core beadapted to close tightly.

At one time I arranged the valve in the discharge conduit so as to be opened by the direct In the preferred and pull of the Bowden-wire core, or in other words in the direction of flow and this made it necessary to apply a very substantial spring pressure to the valve to close itand to keep it closed in case ofemergency against the pressure of the liquid seeking to flow out of the dispenser to the hose. .The plan of overcoming the'force of sucha spring through the pull ofthe Bowden-wire proving to be faulty, the valvewas re-designed and arranged to close in the direction of flow, thus permitting the use of a' much lighter spring, and a lever was interposed between the valve and the rear end of the wire to reverse the direction of transmission, so that the forward pull on the wire resulted in a rearward displacement of the valve. 1

The master valve is preferably a shut-off valve in the supply conduit, but by-pass valves which short-circuit a pump arealso known. Such bypass valves operate in the reverse manner to the shut-off valve which is more particularly contemplated herein, that is to say a bypass valve would be openedto step further supply of liquid to the dispenser whereas a shut-off valve would be closed, and vice-versa. In the development of the present; control, a spring-closed supply valve was originally employed, but again the load imposed by this spring on the core of the Bowdenwire, when the valve was opened, was found to be a detriment. For that reason I have substituted an unbalanced valve closing in the direction of flow to the-dispenser, this valve being vented to atmospheric or substantially atmospheric pressure so that the valvev closes under the pressure of the liquid. This enables a spring to be dispensed with entirely for this valve, though I do not necessarily exclude the use of a light auxiliary spring, theresultin either event being a very material reduction in the strain on the wire. Furthermore, the action of the liquid in closing this valve can be'and preferably is employed for moving the motor-control organ to the power-off condition.

An unexpected and bafiling difliculty with the Bowden-wire as applied in connection with the hose of these dispensers was that it would get out of adjustment and fail to operate the ultimate control agencies properly after a period of use. After study and experiment and after eliminating other possibilities and contributory causes, it was concluded that an explanation of the trouble was that the hose did not maintain a constant length. At that time one end of the Bowden-wire core was fixed to an anchorage in thev discharge conduit and the other end was fixed in the nozzle body. As long as the casing was slack between the two points at which its ends were secured, the control mechanism functioned satisfactorily, but when the hose stretched to a point where the casing became stretched also, the relation between the casing and the core upon which the required movement depended was disturbed. It was found to be practically impossible to obtain a flexible hose which would not vary in length in course of time, and it was therefore deemed necessary to make provision to keep the Bowden-wire length unaffected by changes in the length of the hose.

Inasmuch as the ultimate relation to be considered was the relative movement of the casing and core to be transmitted from one end to the other, I conceived the idea of connecting two relatively movable parts of the manually-operated device to the two component parts, respectively, of the Bowden-wire and to provide for a free or floating movement between this device as a whole and the nozzle body, to which latter the Bowden-wire casing had formerly been secured. In the preferred embodiment the device comprises two grips to be squeezed in. the hand, one gripbeing slidably but not rotatably mounted on said body and being connected to the casing of the Bowden-wire and the other grip being pivoted and being connected to the core.

Another object of the invention is to provide an automatic catch which, when the manually operable device is released, will act to hold the discharge valve still slightly open. When this catch is released-the discharge valve closes completely. The relations between the operating connections and the start and stop arrangement aresuch, however, that when the manual device is caught in this manner, with the discharge valve partly open, the power-control organ and/or the master valve can and will be returned to the condition which stops further measuring and release of liquid quantities. The last measured and released quantity of liquid will find an exit through the partly closed discharge valve after the stopping of the action of the dispenser, and the restricted opening through this valve also assists in the final draining of the hose. I

It is also an object, while making a delivery, to enable the discharge valve to be'adjusted by manipulation of the manual device, so as to control the rapidity of discharge into the customers tank, without, however, stopping the operation 0 the dispenser. 9

These and other objects and features of the invention will be readily understood from a consideration of the preferred embodiment which is described in the body of the specification and: il-

which actually lies behind the plane of the section is shown projected over to one side of the View.

in vertical section, showing the discharge conduit valve andthe start-and-stop arrangement in the condition in which the dispenser is not in use. a

Fig. 2 is a view partly in elevation and partly Fig. 3 is a cross-section on the line 33 of Fig. 2.

. Fig. 4 is a cross-section on the line 44 of Fig. 2.

Fig. 5 is a vertical section through the master valve and portion of the dispenser casting.

Fig. 6 is a longitudinal section with parts in elevation, showing the construction at the outer end of the hose.

Fig. 7 is a section on the line '7'7 of Fig. 6.

Fig. 8 is a section on the line8-8 of Fig. 6.

Figs. 9, l0 and 11 are schematic views illustrative of operation.

The type of dispenser to which the invention is applied in these drawings is one having twin measuring chambers each of which in turn is filled while the other is emptying, the reversal of flow to and from the chambers being efifected by an automatic mechanism.

The twin measuring chambers are marked 2 and 2 3 is asupply passage and lis a discharge passage, to the end of which latter the hose 5 is connected. A bulls-eye or sight-glass 5 is preferably placed in the wall of the outer portion of the discharge passage so that the unit quantities .of liquid can be seen passing from the dispenser. v I

The chambers preferably have vent openings 6 at the top, these vent openings being interconnected by a pipe 7 and being closed alternately,

when each chamber is completely filled, by float valves 8. Connected with the pipe 7 'is an in wardly-opening, spring-closed air admission valve 105. 4

The supply passage 3 is connected with a storage tank and contains a pump 9 which is driven by a motor 10, preferably though not necessarily an electric motor. In common with other dispensers of this type, a relief valve 11 is preferably placed in the supply line to divert liquid into a return line 12 and thereby limit the pressure that can be placed on the liquid going to the chambers and the reversing mechanism. The 1 supply passage 3 is connected with a master valve chamber in the casting 106 of the dispenser. This valve chamber communicates through an opening, which it is not necessary to illustrate, with a continuation passage 3 in the casting, the ends of this passage opening into the opposite ends of a slide valve chamber 121..

The reversing mechanism illustrated is of a known type comprising a piston 13 exposed to the liquid pressure developed in the measuring chambers, a four-way slide valve 14 in the chambar 121 and a spring-toggle. valve-actuating device 15.. The valve connects each measuring chamber alternately with the supply and dis-' charge passages, one chamber being connected with the supply while the other is connected with the discharge and vice-versa. 'When either chamber is empty and the other is filled with liquid, the pressure developed on this liquid'by.

reason of the corresponding vent 6 being closed 1 supplied to the measuring chambers.

The valve actuating device 15 need not be described in detail, since any suitable or known device of this character may be employed. Suffice it to say that it is connected with a rock-shaft This operation is re 7 peated automatically while liquid continues to be I lit 16 which is connected by an arm 101 with the piston and that it is also connected by an arm 102 with another rock-shaft 103, which has another arm 104 connected with the valve.

The dispenser as thus far described is in accordance with the Carbonaro Reissue Patent No. 17,287, dated May 7, 1929, but the invention is not limited to this form of execution.

The starting and stopping of the motor is effected by means of a switch or cut-out which is in.- dicated schematically at 93, electrical wiring 93 connecting the same with the motor. Naturally, a motor of the fluid-actuated type might be used in place of an electric motor, in which event a valve controlling the motive fluid would be the equivalent of a switch.

The supply pipe 3, as previously stated, connects with a valve chamber 120 in a casting 106 containing the chambers in which the piston 13 and the reversing valve 14 operate, this casting being formed with suitable passages, not necessary to illustrate or describe in detail, for con necting one of the

chambers

2, 2 with the supply passage while the other is connected with the discharge passage, these conditions being reversed with each reversal of the valve 14. Thus, the outlet of the valve chamber 120, which forms a part of the supply passage, is-to be understood as being connected by fluidways, not shown, with the ends of the reversing-valve chamber 121.

The valve chamber 120 contains a master valve member 91, which closes in the direction of flow against an annular seat 130. When this valve is closed, supply of liquid to the dispenser is cut off. It follows that if either one of the measuring chambers is then full and the liquid pressure is then seeking to operate the reversing mechanism, such pressure is relieved by the closing of the master valve and thereafter the reversing mechanism will not operate.

The seat 130 is formed by the upstream edge of a bushing 131, which is set tightly into a cylin drical portion of the valve chamber 120, against a shoulder 132. Said bushing has an inner annular wall 133 joined at 134 with the outer wall and extending in the upstream direction, that is to say, toward the movable valve member. The outer wall of the annular pocket 135 thus formed has openings 136 in its outer wall communicating with an annular recess 13? in the body of the valve chamber. A passage 138 meeting this recess is connected by a drain-back pipe 139 with the underground storage tank, not shown. The pocket 135 is thus vented to substantially atmospheric pressure, and in such manner that any-gasolene or vapor (the latter rather than the former) which may find its way out of the pocket, is not allowed to escape hazardously to the open atmosphere but is returned to the source of supply.

The valve member 91 has a body portion 140 provided with a radially projecting rim 141 which contacts with the seat 130, while extending in the downstream direction there is a sleeve 142 which: is guided in the pocket 135. The fit between this sleeve and the walls of the pocket is close, and the course that liquid would have to pursue in order to escape between the surfaces in sliding contact is tortuous.

The body portion 140 of the valve member has one or more port cavities 143 at the downstream side of its solid head, to establish an ample fluidway when the valve is opened.

A stem 144 of the valve member 91 carries a pin 145 which is engaged by the forked end of a bifurcated arm 146 fixed to a rock-shaft 89. This rock-shaft passes through a suitably packed openingin the wall of the upstream part of the valve chamber-120 to the outside of the casting 106, whereit carries a crank-arm 88. Another arm 88 fixed to the rockshaft 89 is connected by a link 92 with the power-control organ 93. In this way, the power-control organ and the master valve are interconnected in a start-and-stop arrangement, so as to operate simultaneously. The concrete embodiment of the start-and-stop arrangement and of the linkage for operating it will be more fully described later on.

Due to the fact that the pocket 135 is drained, any pressure exerted by the liquid on an equivalent area on the outside, or upstream side, of the valve member is quite unbalanced. This unbalanced pressure area creates sumcient force, when the dispenser is in operation, to close the valve when the start-and-stop arrangement is released in the manner described hereafter. This force is also utilised to throw the organ 93 to the poweroff condition, though of course a spring may be used in addition. Inasmuch as the motor ceases to operate at, or substantially at, the same time asthe closing ofrthe valve 91, there will be little or no force acting on the starting'and stopping arrangement to hold it in the nonworking condition; hence only a slight amount'of effort is required to move said arrangement to the working condition.

The outer section 4 of the discharge conduit contains a valve member 147, the primary function ofwhich is to, shut off flow from the dispenser to the hose 5 in case of necessity. In addition, this valve is operable to throttle or regulate the discharge, so as to increase or decrease the speed of delivery during the filling of customers tanks. This valve is back of the hose, that is to say upstream from the hose, so that the liquid must pass this valve before passing through the hose.

This valve closes in the direction of flow, against a beveled valve seat 148 formed at the entrance to the conduit section 4 The valve member preferably comprises a composition gasket 149 clamped between

metal parts

150 and 151. The body of the downstream part 151 is circular and is disposed within the cylindrical inner surface of a guide 152 which projects downstream in the conduit section 4 An appreciable clearance 153- between the

parts

151 and 152 affords a restricted annular passage when the valve is moved to separate gasket 149 from the seat 148 but not moved far enough to carry the obstructor 151 out of the broad cylindrical opening through the guide. When the part 151 is moved out of said opening, free flow of liquid through the valve is permitted, and by moving the part 151 relatively to the beveled surface 148 this out flow can be increased or decreased in a manner to secure very effective control of the speed and force of discharge.

The part 151 of this valve member is formed with guide wings 154 which contact slidably with the interior of the guide 152. A spring 155 reacting between the upstream face of the valve member 147 and an abutment 156 in the discharge passage acts to close the valve.

On the outer end of the hose 5 there is a hollow body 157 containing the fluid passage 158. The nozzle 159 is secured to or forms part of this body. Two spaced longitudinal bars 160 set away from the top of the body 157 and united therewith by legs 161 may be used as a handle.

A Bowden-wire 162 extends inside the hose throughout its length. The rear end of the easing 163 of this-Bowden-wire is fixed to an anchorage 164 in the section 4 of the fixed discharge conduit, and the protruding end of the core 165 is connected to one end of a two-armed lever 166, which lever is fixed to a rock-shaft 167 that extends through an opening in the wall of the conduit, such opening being kept fluid-tight by a stuffing-box 168. The other end of the lever 166 is pivotally connected to a thrust rod 169 which extends upward into a socket 1'70 in the downstream side of the valve member 147. By virtue of this mechanism a pull onthe wire .165 of the Bowden-wire is transformed into a movement in the reverse direction which opens the discharge valve..

On the portion of the shaft 167 outside the conduit a crank arm 171 is fixed and to this is pivoted a rod 79. Said rod extends rearward to the casting 106, where it enters an enclosure formed between the casting and a cover plate (not shown). The rear end of the rod is connected by a pivot pin 81 to a hanger link 82 and to a thrust-bar 83. The rear end 84 of said thrust bar is preferably slotted to engage a-pin 85 on the forward end of an adjustable link 86, the rear end of which link is pivoted to the arm 88 previously referred to. The pin 85 pivots in the lower end of an arm 94 which is supported on a fixed pivot 95.

Projecting from the arm 94 is an abutment 99 to co-operate with a bell-crank detent 97. This detent may be swung on the same fixed pivot 97 that supports the hanger link 82, this link and the detent being free, of course, to move independently of each other. A spring 98 urges the detent into blocking relation to the abutment 99. The pivot pin 81 is extended into the path of the depending arm of the detent 97, so that, when the linkage up to and including the bar v83 is retracted sufficiently, the detent 97 will be disengaged from the abutment, with the result that the starting and stopping arrangement for the dispenser will return tothe non-working condition by virtue of the unbalanced pressure of the liquid acting on the master valve 91.

Since it is not desired that the, Bowden-wire core 165 shall work in compression, this withdrawal of the operating linkage, which includes the

parts

171, 79 and 83, is effected by spring action, and the closing spring 155 of the discharge valve 147 is preferably utilized for this purpose. That being the case, the operating connections between the valve 147 and the startand-stop arrangement of the dispenser are made of parts capable of transmitting stress in both directions, whereas'the core 165 of the Bowdenwire acts in tension only.

The movement of the

linkage

171, 79 and 83 in the rearward direction moves the start-andstop arrangement including the

parts

86, 88, 146, 91, 88 92, 93, to the dispenser-working condition, at the same time moving the abutment 99 to a position in which it is engaged by the detent 97, this detent serving to hold the start-and-stop arrangement in the said condition. Movement of the operating linkage in the reverse direction does not directly restore the start-and-stop arrangement to the non-working condition, this fact being due to the loose operating connection between 85 and 83, which for convenience may be termed a disconnection. When, however, the operating linkage has executed a sufilcient movement .of withdrawal the pin 81 strikes the This lost-motion provision enables the discharge valve to be shifted back and forth to regulate the free discharge through the hose without tripping the start-and-stop arrangement. The relations are such, however, that when the discharge valve is moved almost closed, leaving nevertheless a restricted passage through the clearance 153, the

detent '97 is disengaged.

The forward end of the Bowden-wire casing 163 is fastened to a hollow extension rod 172 which, at an offset'in the fluid passage 158 of the nozzle body 157, passes slidably through a stufiing-box 173 in the wall of said body. This end of the core 165 of the Bowden-Wire passes outward through and beyond said extension.

The outer end of the extension 172 is secured at 174 to an arm 175 which is rigidly with a grip 176, and the

part

175, 176 is slidably connected with the body 157 by virtue of two spaced

pins

177, 178 on this part engaging grooves in the bars 160. Another grip 179 is pivoted on the pin 177 so that the two grips can be grasped after the manner of the handles of a pair'of pliers. The work arm 180 of the

lever

179, 180 acts against a button 181 on the protruding end'of the core 165, so that, when the grip 179 is pressed toward the grip 176, draft is exerted on said core.

It will be perceived, therefore, that the Bowden-wire casing is not fixed to the body 157, which is connected to the end of a hose subject to stretching, but is free to move relatively to this terminal of the hose, which is the same thing as saying that the hose and the body 157 are free to move relatively to the BoWden-wire casing. Thus, the two component parts of the Bowden-wire are connected, respectively, to two relatively movable parts of a manual operating device, which device, as a whole, is free for change of position relatively to the body 157.-

Consequently, any change in the length of the hose does not disturb the relation between the casing and core of the Bowden-Wire, and the mechanism, therefore, remains in proper adjustment notwithstanding any elongation of the hose.

A catch 182 is pivoted at 183 on the grip 179 and is urged by a spring 183 to engage a lug 184 on the grip 176; When the grip 179 is moved sufficiently in the direction toward the grip 170 to open the discharge valve 147 and to set the stopand-

start arrangement

91, 93, etc. in the working condition, the hook of the catch 182 is considerably past the lug 184. The catch does not, therefore, interfere with the manipulation of the manual device to regulate the outflow of gasolene .to jL w and through the hose. The proportions are such that when the grips are released, the catch will engage the lug and hold the

part

179, 180 from returning quite all the way to its normal position.

In this caught condition, the Bowden-wirecore 165 is held under tension by the discharge-valve closing spring 155, with said valve unseated but sufficiently closed to afford only a comparatively narrow passage through the annular space 153.

It willbe understood, therefore, that when the 35C casing is fixed in any suitable manner.

grips of the manual device are released to stop further operation of the motor 10 and pump 9 and to cause the closing of the master valve 91, either or both of which prevent further operation of the dispenser, the discharge valve 147 is still held suiiiciently open to permit the last measured gallon or other unit of a quantity called for to pass the said valve. This restricted or partly opened condition also facilitates the draining of the hose.

When the hose has been drained, the catch 182 may be released by pressing on the tail 185 of the catch 182, so that the discharge valve 147 closes completely. However, it is not essential that this valve be closed entirely after a delivery has been made in the normal way, the chief purpose or completely closing the discharge valve being to stop further delivery of liquid from the dispenser in event of emergency, such as the tank of an automobile becoming filled and starting to run over in the course of a delivery.

I find that during a protracted delivery some gasolene will penetrate the casing 163 of the Bowden-wire, and to prevent escape of liquid in this manner I have made a provision to prevent gasolene leaking through the casing and then passing out through the interior of the hollow extension 172. The bore 186 of the extension is enlarged at the rear end forming a chamber 187. In the outer part of this chamber the end of the In the part of the chamber 187 traversed by the core 165 a packing 188 is placed, this packing being confined between

washers

189, 190 and being under the pressure of a spring 19l, this spring being 1 under compression between the washer 190 and the forward end of the Bowden-wire casing and pressing the packing assembly against a shoulder 192.

The general operation will now be described. Fig. 9 illustrates the condition of the parts when the dispenser is not in use. To start the dispenser, the attendant, having inserted the nozzle in the customers tank, presses the grip lever 179, thereby pulling the core of the Bowden-wire 162. Through the lever 166, rock-shaft 167, external arm 171, rod 79 and linkage actuated thereby, the pull of the wire is applied .to move the powercontrol organ 93 and the master valve 91 to the positions in which the motor 10 is set in operation to drive the pump to pump liquid to the measuring

chambers

2, 2 and to the reversing

mechanism

13, 14, etc., and in which the supply passage 3 is conditioned to permit the liquid to be pumped to the dispenser. In the case of an electric motor the control organ 93 is a switch which is closed, and in the case of a master-valve which is a shut-01f valve, as it preferably is, the valve is opened. The start-and-stop arrangement is caught and held in this working condition by the detent 97. The draft on the core of the Bowden-wire also acts through the motion-reversing lever 166 and the thrust-rod 169 to unseat and fully open the discharge valve 147. This condition is represented in Fig. 10.

Gasolene is now pumped from the underground storage tank to the measuring chambers in turn,

and .the reversing mechanism is automatically controlled or operated through or by the liquid to make its reversals when each chamber has been emptied and the other has been filled. The measured quantities flow through the discharge conduit 4 past the open valve 147 and thence through the hose 5 to the tank of the automobile. In the course of the delivery the attendant can manipulate the hand lever 179 to vary the degree of opening of the valve 147 in such manner as to regulate nicely the rapidity of discharge. In so doing he .does not bring about a return of the start-and-stop arrangement to the non-working condition. 'I'he ability to regulate the discharge valve without stopping the operation of the dispenser, notwithstanding that all the functions of the dispenserarecontrolled from a single manual device at the nozzle end of the hose, is important, since some tanks will take gasolene faster than others and since it is also desirable to fill more slowly as the liquid level approaches the top oi the tank.

If a tank should start to overflow, or if for an other reason it should become desirable to cut off the discharge and to stop the operation of the dispenser, the attendant releases the

grips

176, 179, at thesame time holding the catch 182 out of action. The spring 155 at once closes the discharge valve completely, andv the same action retracts the rod .79'.and thrust-bar 83 and brings the pin 81 into contact with the detent 97 to release the same. After that the start-and-stop arrangement will return .to the non-working condition .by reason of the unbalanced pressure acting on the master valve 91, .with the result that this valve is closed and the switch 93 is opened.

In the ordinary course the attendant keeps the pressure of his hand .on the lever 179' until .the last gallon or other unit of .the total number asked for by the .customerstarts to run out of its measuring chamber, and at any time-after that, and before .another reversal of the automatic valve mechanism occurs, he releases the grips. The spring 155 immediately moves the discharge valve 147 to the nearly or partly closed draining position (Fig. 11) where it .is held by reason of the tension in the Bowden-wire due to the fact that the .catch 182 restrains the grip lever 179 from returning all the way to normal position.

The movement of .the rockshaft 167 caused by this movement of the discharge valve withdraws the operatingconnections for the start-and-stop arrangement, causing the pin 81 to trip the detent 97, after which the valve 91 and the power-control organ .93 return to the non-working condition. 'This stops further operation of the dispenser, .but .the .last gallon, which is flowing out, finds .its way past the still partly open discharge valve. When the hose has been drained, it is preferable that the attendant disengage the catch 182, relieving further strain on the Bowden-wire core and causing the valve 147 to close tentirely.

Various other functions and advantages of the features of the invention have already been pointed out and need not be repeated.

It may be stated that in a practical application itis desirable that the mechanism and combinations which ,have been described be used in connection with a counter mechanism; reversingmechanism lock and lastallon-delivery interlock such as disclosed in my copending application Serial .No. 517,444, filed February 2, 1931, now Patent No. 1,832,583, dated October 11, 1932.

It will be apparent that the apparatus may be modified or alteredby additions, omissions, substitutions, or re-arrangement, without departing from the spirit of the invention." The claims are intended to cover all-the generic and specific features of the invention-and all statements of scope which as a matter of language might be said to fall therebetween.

I claim:

1. In a liquid dispenser having measuring 'master valve and said power-control organ ,to

move the same to the working'condition, and means other than said Bowden-wire for efiecting return'of said shut-off valve, said master valve and said power-control organ to non-working condition.

2. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, and a hose connected with said discharge conduit, the combination of a mastervalve in connection with said supply conduit, a shut-ofi'valve in said discharge conduitbehind the hose, a body connected to the nozzle end of'said hose, a manually operable device associated with said body, a Bowdenwire connected with said device and passing lengthwise of said hose, operating connections from the remote end .of said Bowden-wire to said shutoff valve and said master valve to move the same 'to the working condition, and means other than said Bowden-wire for effecting return I of said shut-off valve and saidmaster valve to non-working condition. y

3. In a liquid dispenser having a discharge conduit and a hose connected therewith, the combination of a body connected with the nozzle .end of said hose, a valve seat and a bodily movable shut-off valve in said discharge conduit, said valve being disposed to close on its seat in the direction of flow, abody connected tothe nozzle end of said hose, a manually operable device associated with I said body, a Bowden-wire connected with said 3 the wire.

device and passing through the interior of said hose, and a lever connected with the remote end of said Bowden-wire and arranged inside said discharge conduit to act on said valve to unseat the same in a direction reverse to the movement of 4. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, a hose connected with said discharge conduit, and

a motor andpump for supplying liquid through said supplyconduit to said measuring means, the

combinationof apower-control organ for said motor, a master valve in connection with said supply conduit, a shut-off valve in said discharge conduit, abody connected with the nozzle end of 5 said hose, a manually operable device associated with said body, a Bowde'n-wire connected with said device and passing throughsaid hose, a lever supported in said discharge conduit below said shut-off valve, one arm, of said lever being (3011-.

nected with said Bowden-wire, a'thrust element interposed between the other arm of said lever and said shut-off valve, ashaft passing through' the wall of the discharge conduit and likewise'ope eratively connected with said Bowden wire, a rod 1 connected with the externaLportion of said shaft,

and connections between said rod and said powercontrol organand said master valve.

5. In a liquid dispenser having .measuring means, a supply conduit through which liquid is supplied to said measuring means,"a discharge conduit, and a hose connected with said discharge conduit, the combination of a shut-off valve in said discharge conduit, said valve being adapted also to regulatethe fiow of liquid to the hose, a manually operable device associated with the nozzle end of said hose, a flexible mechanical connection connected with said device and extending lengthwise of said hose to operate said valve,

a valve in connection with said supply conduit,

operating connections by means of which the latter valve is also controlled from'the aforesaid connection, and means to allow for regulation of said discharge conduit valve without changi the condition of the second-named valve.

6. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, a hose connected with said discharge conduit, and a motor and pump for supplying liquid through said supply conduit to said measuring means, the combination of a shut-01f valve in said discharge conduit, said valve being adapted also to regulate the now of liquidto the hose, a manually operable device associated with the nozzle end'of said hose, a flexible mechanical connection connected with said device andextending lengthwise of said hose to operate said valve, a mechanism controlling the supply of liquid to the dispenser, said mechanism having means for moving the same to the non-operating condition and a detent for holding it in the operating condition, operatin connections between the aforesaid connection and said mechanism adapted to set the latter in the operating condition when said discharge conduit valve is opened and to release said detent after suflicient movement of said valve in the closing direction, and means to allow for regulation of said discharge conduit valve without changing the condition of said mechanism.

'7. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, a hose connected with said discharge conduit, and a motor and pump for supplying liquid through said supply conduit to said measuring means, the combination of a shut off valve in said discharge conduit, said valve being adapted also to regulate the flow of liquid to the hose, a manually operable device associated with the nozzle end of said hose, a flexible mechanical connection connected With said device and extending lengthwiseof said hose to operate said valve, a releasable catch associated with said control device to hold said valve-slightly open, means controlling the supply of liquid to the dispenser, operating connections by means of which said means is caused to be set in the working condition when said valve is opened and is caused'to be restored to the nonworking condition when said valve is closed to the extent determined by said catch, and means to allow for regulation of said valve without changing the condition of said means.

8. In a liquid dispenser having ineasuring means, a supply conduit, a discharge conduit, a hose connected with said discharge conduit, and a motor and pump for supplying liquid through said supply conduit to said measuring means, the

combination of a shut-off valve in said discharge .conduit, a manually operated control device associated with the nozzle end of said hose, a flexible mechanical connection connected with said control device and. extending lengthwise of the 1 hose to operate said valve, a releasable catch associated with said control device to hold said valve slightly open, a start and stop means for said motor, and operating connections whereby said means is caused to be set in the power-on condition when said valve is opened and is caused to be restored to the power-oil condition when said valve is closed to the extent determined by said catch.

9. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, a hose connected with said discharge conduit, and a motor and pump for supplying liquid through said supply conduit to said measuring means, the combination of a shut-ofi valve in said discharge conduit, a manually operated control device associated with the nozzle end of said hose, a flexible mechanical connection connected with said control device and extending lengthwise of the hose to operate said valve, a releasable catch associated with said control device to hold said valve slightly open, a start and stop means including a power-control organ for said motor and a valve in connection with said supply conduit, and operating connections whereby said means is caused to be set in the working condidition when said discharge conduit valve is opened and is caused to be restored to the nonworking condition when said valve is closed to the extent determined by said catch.

10. In a liquid dispenser having measuring means, a supply conduit, a discharge conduit, and a hose connected with said discharge conduit, the combination of a shut-off valve in said discharge conduit, a manually operated control device associated with the nozzle end of said hose, a flexible mechanical connection connected with control device and extending lengthwise of the hose to operate said valve, a releasable catch with said control device to hold said valve slightly open, a valve in connection with said supply conduit, and mechanism controlled from the aforesaid connection and by means of which the latter valve is caused to be opened in conjunction with the opening of said discharge conduit valve and to be closed when said discharge conduit valve is closed to the extent determined by said catch.

ll. In a liquid dispenser having a discharge conduit and a hose connected therewith, the combination of a manually operated control device associated with the nozzle end of said hose, a valve in said discharge conduit, means comprising a flexible mechanical connection extending from said device lengthwise of the hose to operate said valve, means tending to close said valve, and a releasable catch associated with said control device to hold said valve slightly open.

12. In a liquid dispenser having measuring means, a supply conduit through which liquid is supplied to said measuring means, a discharge conduit and a hose connected with said discharge conduit, the combination of' a springclosed valve in said discharge conduit, a manually operated control device associated with the nozzle end of the hose, means comprising a mechanical operating wire extending from said control device to open said valve, an unbalanced valve in said supply conduit adapted to be closed by pressure of the liquid, and operating connections between said wire and the latter valve.

13.111 a liquid dispenser having measuring mechanical operating wire extending from said .trolled.

control device to said valve to open the same, a start and stop means including a power-control organ for said motor and an unbalanced valve in aid supply conduit, the latter valve being adapted to be actuated by pressure of liquid in said conduit to urge said start and stop means toward the non-working condition, means whereby said start and stop means is held in the working condition, and operating connections between said discharge conduit valve and said start andstop means whereby said means is set in the operating condition when said discharge conduit valve is opened and is tripped in connection with closing movement of said valve.

l4. In a dispenser having a supply conduit, a valve seat in said conduit, means forming an annular pocket around said seat, said pocket having an opening to the outside or the conduit, a drain-back connected with said opening, and an unbalanced valve closing against said seat in the direction of flow and having a sleeve which works in said pocket.

15. For operating a control means back of a hose from the outlet end of the hose, the combination with a body on the outlet end of the hose, of a manually operable device associated in a freely movable manner with said body, said device comprising relatively movable parts, a Bowden-wire casing anchored at its rear end and connected at its forward end with one part of said device, and a BoWden-wire core the ends of which are connected, respectively, with the other part of said device and with the means to be controlled. 1

16. For operating a control means back of a hose from the outlet end of the hose, the combination with a body on the outlet end of the hose, of a manually operated control device comprising two parts provided with grips, a slidable connection between one of said parts and said body, the other part being pivoted to the slidable part, a BoWden-wire casing anchored at the rear end and connected at its other end with said slidable part, and a Bowden-wire core the ends of which are connected, respectively, with the pivoted part of said device and with the means to be con- 17. For operating a control means back of a hose from the outlet end of the hose, the combination with a body on the outlet end of the hose, of a manually operable device associated in a freely movable manner with said body, said de- V vice comprising relatively movable parts, a Bowden-wire casing anchored at its rear end, a hollow extension connected to the forward end of said casing and guided in an opening in the wall of the fluid-way of said body, the external portion of said extension being connected with one part of said device, and a Bowden-wire core, one end of which passes through said extension and is connected with the other part of said device, the other end of said core being connected with the means to be controlled.

.18. For operating a control means back of a hose from the outlet end of the hose, the combination with a body on the outlet end or" the hose, of a manually operable device associated in a freely movable manner with said body, said device comprising relatively movable parts, a Bowden-wire casing anchored at its rear end, a hollow extension connected to the forward end of said casing and guided in an opening in the wall of the fluid-way of said body, the external portion of said extension being connected with one part of said device, a Bowden-wire core, one end of which passes through said extension and is connected with the other part of said device, the other'end of said core being connected with the means to be controlled, means for preventing escape of liquid around said extension, and means for preventing escape of liquid through said casing and the interior of said extension.

19. For operating a control means back of a hose from the outlet end of the hose, the combination with a body on the outlet end of the hose, of a part associated with said body so as to be free to move relatively thereto, a lever pivoted to said part, a Bowden-wire casing anchored at its rear end and connected at its forward end with said part, and a BoWden-wire core the ends of which are connected, respectively, with said lever and with the means to be controlled.

20. In a liquid dispenser having measuring apparatus, the combination with a pump, a motor, a ischarge conduit and a delivery hose, of a power-control organ for the motor, a master valve controlling the supply of liquid from the pump to the measuring apparatus, a discharge valve placed in said discharge conduit back of the hose, and means for controlling both said valves and said power-ccntrol organ from the outlet end of the hose. r

21. In a liquid dispensing apparatus, the combination with measuring apparatus, a pump, a

'; motor and a delivery hose, of a power-control organ for the motor, a master valve controlling the supply of liquid from the pump to the measurin apparatus, a discharge valve, a manipulating device at the end of the hose, and means operable by said manipulating device for opening said discharge valve, for placing said power-control organ in the power-on condition, for moving said master valve to the dispensing condition, and for adjusting said discharge valve to regulate the outflow of liquid without changing the condition of said power-control organ.

22. In a liquid dispensing apparatus, the combination with measuring apparatus, a pump, a motor and a delivery hose, of a power-control organ for the motor, a master valve controlling the supply of liquid from the pump to the measuring apparatus, a discharge valve, 9; manipulating device at the end of the hose, and means operable by said manipulating device for opening said discharge valve, for placing said power-control organ in the power-on condition, for moving said master valve to the dispensing condition, and for adjusting said discharge valve to regulate the out-flow of liquid without changing the condition of said power-control organ or of said master valve.

23. In a liquid dispensing apparatus, the combination with measuring apparatus, a pump, a discharge conduit and a delivery hose, of an adjustable discharge valve placed in said conduit back of the hose, a master valve controlling the pumping of liquid to the measuring apparatus, a manipulating device at the outlet end of the hose, operating connections from said device to both said valves, and releasable means to keep the delivery valve slightly open when the master valve has been restored to the non-dispensing condition.

24. In a liquid dispensing apparatus, the combinationwith measuring apparatus, a pump, a

discharge conduit and a delivery hose, of an ad.- justable discharge valve placed in said conduit back of the hose, a master valve controlling the pumping of liquid to the measuring apparatus, an electric control switch, a manipulating device at the outlet end of the hose, means operable by said device for opening both said valves and, closing said switch and for adjusting the discharge valve without opening said switch, and means for holding the discharge valve in slightly open condition after the master valve has been closed.

25. In a liquid dispenser having a discharge conduit and a hose connected therewith, the combination of a manually operated control device associated with the nozzle end of said hose, a valve in said discharge conduit, means extending from said device lengthwise of the hose to operate said valve," means tending to close said valve, and a releasable catch associated with said control device to hold said valve slightly open.

,WALTER H. HAUPT.

DISCLAIMER 1,981,357 .Walter H. Haupt, Ludlow, Ky. NOZZLE CONTROL OF DISPENSERS. Patent dated November 20, 1934. Disclaimer filed July 24, 1935, by the assignee, Augustine Davis, Jr.

Hereby enters this disclaimer to that part of the claims in said specification which is in the following Words, to Wit: I

21. In a liquid dispensing apparatus, the combination With measuring apparatus, a pump, a motor and a delivery hose, of a power-control organ for the motor, a master valve controlling the supply of liquid from the pump to the measuring apparatus, a discharge valve, a manipulating device at the end of the hose, and means operable by said manipulating device for opening said discharge valve, for placing said powercontrol organ in the power-on condition, for moving said master valve to the dispensing condition, and for adjusting said discharge valve to regulate the outflow of liquid Without changing the condition of said power-control organ.

22. In a liquid dispensing apparatus, the combination with measuring apparatus, a pump, a motor and a delivery hose, of a power-control organ for the motor, a master valve controlling the supply of liquid from the pump to the measuring apparatus, a discharge valve, a manipulating device at the end of the hose, and means operable by said manipulating device for opening said discharge valve, for placing said power-control organ in the power-0n condition, for moving said master valve to the dispensing condition, and for adjusting said discharge valve to regulate the out-flow of liquid without changing the condition of said power-control organ or of said master valve.

[Oflicial Gazette August 18, 1935.]