US1855667A - Liquid dispensing apparatus - Google Patents

Description

April 26, 1932- 'J. B. DAvls v 1,855,667

LIQUID DISPENS ING APPARATUS INVENToR.

A TTORNEYS.

April 26, 1932.

LIQUID DISPENSING APPARATUS Filed Jan. 28, 1929 if ATTORNEYS.

3 Shets-Sheet 2 April 26, 1932. B, DAVls 4 1,855,667

LIQUID DISPENSING APPARATUS Filed Jan. 28, 1929 3 Sheets-Sheet 3 INVENToR.'

ff ff Mfw 1 BY *7d A TTORNEYS.

Patented Apr. 26, 1932 UNITED STATES PATENT OFFICE JOHN B. DAVIS, 0F SPRINGFIELD, MASSACHUSETTS, ASSICNORTO GILBERT & BARXER MANUFACTURING COMPANY, OF WEST SPRINGFIELD, MASSACHUSETTS, A COB.-

PQRATION 0F MASSACHUSETTS LIQUID DIsPENsING APPARATUS .Application led January 28, 1929. Serial No. 335,611.

This invention relates to liquid dispensing apparatus of a t pe adapted for dispensing gasoline, oils an the like.

The invention has for one object theprovision of improved means for locking up the nozzle of the dispensing hose, when not in use, preferably in a vmanner such that it not only cannot be used but also so that it is protected from the weather.

The invention also has for an object the provision of hose nozzle locking means of a .type whichV will also prevent opening of the valve of the nozzle while the latter is Alocked I)Another object of the invention relates to liquid dispensing apparatus having a poweroperated pumping means, and consists in the provision of means for stopping the pumping nieans,-such stopping means being controlled by the hanging up of the hose, and the weight of the nozzle thereof serving to act-nate the stopping means.

A further object of the invention relates to a liquid dispensing apparatus having a plurality of delivery hoses, all served from a single power operated pumping means, and consists in an arrangement, whereby the pumping means will be automatically stopped when. andl only when, all the hose nozzles are hung up in inactive position.

Another .obJect of the invention relates to :in apparatus of the class just describedand` consists in the provisonof means whereby, when any one of the plurality of hose nozzles :irc lmnp; up in inactive position, a valve will be automatically closed in the' pipe line which 'serves said nozzle, and whereby when all the` nozzles are thus hung up the pumping means will be stopped. I have osen'as an illustrative embodiment of my invention, a so-called meter type dispenser, including an electrically or other power driven pump which supp-lies two discharge lines, each including a meter. The invention. however, is'capable of use in many other v'dispensers which differ widely from that shown andV it is therefore not the intention to have the invention restricted to the particular form of dispenser shown.

Other objects and advantages'will appear in the following description and will be pointed out in the appended claims.

The invention will be disclosed withreference to the accompanying drawings, in which Figs. 1 and 2 are elevational views, taken at right angles, of a dispensing apparatus embodying my invention,-the casing of the apparatus being shown in section to reveal interior mechanism;

Fig. 3 is afragmentary sectionall view taken on the line 3-3 of Fig. 2 and drawn to a larger scale;

Fig. 4 is a View taken similarl to Fig. 3 but showing certain parts in di erent relative positions;

Figs. 5 and 6 are fragmentary sectional 'plan views taken on the lines 5-5 and 6-6,

respectively, of Fig. 3;

Fig. 7 is a' fragmentary exterior view showing the openings in the casing for the end of latter, and the switch lever;

Fig. 8 is a fragmentary cross sectional view taken on the line 8-8 of Fig. 3;

Figs. 9 and 10 are sectional views, taken at right angles of one of the shut oil' valves used in the supply line to each meter; and

Fig. 11 is a sectional elevational view of a modied form of sight glass indicator for use inthe discharge line from each meter.

Referrin to Figs. 1 and 2, the apparatus includes a ase 15,-a cap.16 anda-two-part sheet metal casing 17 of modified square cross section (see Fig. 5), which supports the ca from the base. The cap ma if desire carry a dome 18, illuminated y an electric lamp 19. Located within casing 17, and intermediate the ends thereof, is a horizontally disposed support 20, secured as indicated, tothe upper ends of four pipe columns To the lower end of T 27 is connected a suiti able filter 28 and to the filter is connected a suction pipe 29, adapted for connection to,

an underground supply tank (not shown). From the outlet of pump-22, a discharge pipe 30, including a T 31, leads vertically upwards and is connected to the lower end of'a cross fitting 32. To the two lateral branches of the latter are connected discharge pipes 33 which extend vertically upwards through openings in brackets 34 (secured tosupport 20,-Fig.` 5) and terminate with unions 35 for connection one to each of the meters 36. The T 31 is connected by a pipe 37 to an air dome 38. The upper outlet of cross fitting 32 is connected by a pipe 39 to a relief valve 40, of any suitable type which will open when the pressure in pipe 39 exceeds a predetermined value. The outlet of valve 40 is connected by a pipe 41 to the upper outlet of the T 27, heretofore described. Thus, a bypass from the discharge to the suction side of pump 22 is provided, whichA by-pass is normally closed ut will open automatically to relieve excess pressure in either of the discharge lines.

The casing 17 is provided with suitable openings` normally closed by doors 42 and 43, whereby access may be had to the motor, pump and associated parts.

The meters 36 m'ay be of any suitabletype.

, A well known standard type is shown conventionally herein and it includes a dial 44 and an indicator hand 45 associated therewith and movable by, and proportionately to', the volume of the liquid passing. through its pipe 33. The casing 17' is provided with openings, one adjacent the dial face of each meter 36, to receive short cylindrical sleeves 46, which are open4 at both ends and have flanges 47 at their outer ends secured-to the casing. `The inner end of each sleeve 46 .encompasses and partiallyoverlaps the cylindrical part of its meter 36. The cap 16 has projecting from opposite sides, hoods 48 which overlie the sleeves 46 and within each hood an electric lamp 49 is so located as to illuminate the interior of sleeve 46 and the dial face of the adjacent meter 36. The several sockets for lamps 49 and lamp 19 are connected by conduits 50 to a junction box 51. located centrally in cap 16, and from box 51 a conduit, shown in part at 52, extends downwardly to the base of casing 17 .A Wires for these lamps extend through these conduits, as will be understood, and are adapted yto be connected at the base of the casing with suitable service wires.

The outlet ipe 53 of each meter 36 extends outward y through casing 17 for connection to a flexible discharge hose 54. Preferably the pipe 53 includes a union 55, and.

oftentimes, it is desired'to interpose between the pipe 53 and hose 54 some sort of a sight glass indicator, such as is shown at 56, by means of which the customer can ascertain whether or notv liquid is flowing to the'hose. To facilitate this object, a spinner vane 57 may be located within the sight glass device land rotatably mounted therein so as to b revolved by the moving liquid.

The hose 54-is usually a long one and is shown in part only in the drawings,-the inlet end of each hose 'appearing in Fig. 2 and the outlet end of each appearing in Fig.

1. To the outlet end of each hose is secured a valved nozzle 58 of any suitable type. That shown herein is, except for minor details. substantiallyv like the device disclosed in Eichmann Patent No. 1,585,332, dated May 18, 1926, and includes a valve which is no1'- mally held closed by a sprin but which can is dropped.

For supporting the nozzles 58, when not in use, a pair of levers 62 are provided one for each nozzle. 'Each lever is pivotally mounted, at a point intermediate its ends, on a bracket`63, secured to the support 20, heretofore described. The outer end of each lever 62 extends outwardly through an opening 64 in casing 17 and4 is adapted to support the.

nozzle 58. The lower part of guard 61 rests on lever 62 and has a slot therein to receive an upstanding lug 65 of lever 62. Such lug has a hole 66 therethrough to receive a padlock, such as is shown conventionally at 67 in Fig. 8, whereby the nozzle 58 may be locked to the lever. The discharge end of nozzle 58 extends into casing 17 through a hole'68, when the nozzle is supported on lever 62, so that even if the valve in the nozzle were opened at such a time, no advantage would re sult to the one who opened it because the liquid delivered could not be utilized. However, the lug 65 is so arranged as to prevent the lever 60 from being operated sufficiently to open the hose nozzle valve, whenever the nozzle is hung on lever 62.V

The two levers 62 are interconnected by a link 70, having at opposite ends trunnions 71` which kextend into andv through slots 72 formed one in each of the levers and are held in place by cotter pins 73 passed through the projecting ends ofthe trunnions. This link, when fully raised, as when both nozzles r 58 are hung up on levers 62 as shown in Fig.

. fionv to close the same.

button type, moving the oil button 74 thereof far enough, under such circumstances, to accomplish this result. In eHecting this work, the link operates throu h the intermediary of a vertical plunger 6, the lower end of which is forked to straddlethe link and 'is pivotally connected thereto, as indicated. This plunger is slidable in a bearing 77 formed on a. bracket 78, secured to sup- 'port 20. Bracket'7 8 also serves as a support is pivoted at a point intermediate its ends to bracket 78. rlhe other is similarly pivotcd to a separatel bracket v83 secured to support 20. The first named lever 81 operates directly on button 82 and the other lever 81 has a right angularly turned end 81 (Fig. 6) which underlies the lirst named lever and can move the same upwardly to cause it to move button 82. These levers extend in opposite directions and terminate with linger pieces 84 arranged adjacent to and accessible through holes 85 in casing 17. These openings are so arranged as .to be closed by the guards 61 of the hose nozzles, when the latter are hung up on levers 62 as best shownv in Fig. 7, whereby the motor cannot be started until at least one of the hose nozzles has been removed from its supporting lever.

Interposed in each pipe line .33 is a valve, the casing offwhich is Vdesignated 86. A s shown in Figs. 9 and 10, a valve 87 is vertically slidable to and froma seat 88, being guided by its stem 89 which slides in a bearing formed in a spider 90. Fixed to anddepending from valve 87 is a yoke 91, slotted at 92 to permit it to slide up and down relatively to an operating shaft 93 which is rotatably mounted in casing 86 and has one end extending out of the latter through the stuing box shown. Fixed to shaft 93 is an eccentric 94, adapted when turned'clockwise, as viewedm Fig. 10, to engage a flange 95 o n member 91 and raisel the valven87 'to Aits seat/When turned counterclockwise, ec'centric94 will engage a second lange-96 'on member 91 and move thel valve awayA from its seat'against the pressure of liquid in-pipe 33. The ends of flange 96iride' in grooves 97v .(Fig. 9) `of casing 8 6 to prevent turning of the member 91. A movement'of shaft 93 through about 45 degrees will open val-ve 87 suliiciently.

. The opening' and closing of valves 87 is'- controlled by the levers 62. Eachfshaft 93 has a lever'98 fixed thereon and each lever is connected yby a link 99 to the inner end of the lever 62 which it underlies. Preferably, the lever 6.2,. has pivotally -mounted thereon a block 100 and the link 99 slides through and projects above this block. A spring 101 encompasses the upper end of each link -and acts between the block 100 and a washer 102 which is held in place by a cotter pin 103. The arrangement is such as to permit some travel offlever 62 after valve 87 has been drawn to its seat, the excess travel being per-` mitted vby the spring 101 .which then compresses. When either one of the hose nozzles 58 1s hung up on its lever 62, the weight of the nozzle swings the lever and closes that valve- To insure that the operator hangs the proper hose nozzle on the proper nozzle, the

levers 62 may have projections, ,such as 62 which fit in the slots formed in guards 61. The levers 62 and guards 6L are made right and left with respect to such projections and slots so that the right hand guard will not fit on the left hand lever and vice versa.

The dispensing system is normally a closed Aone since the valves of the hose nozzles and valves 87 are closed, when the apparatus is 87, a by pass 104 around such va ve. This bypass is controlled and normally closed by a spring-pressed ball valve 105. On expansion of liquld in the upper part of the system, valve 1 05 will open to allow liquid to pass into the lower portion of the system which includes the air dome.

In Fig. 11, a modified form of sight glass indicator is shown at 56. This device is upturned from discharge pipe 53rather than downturned as is the device 56 shown in Fig. 2. The pipe 33 discharges into a chamber 105 in the base 106 of the device and from this chamber a pipe 107 extends .upwardly Within glass cylinder 108, terminating just short of cap 109, The base of cylinder `108 communicates with a chamber 110 in base 106.and the 108 to drain back into this pipe. Thus, should there be a leak in the meter or any of the connections thereto, liquid will drain out ofthe glass cylinder through hole 111 and there will be a drop in liquid level in the glass, which will warn the purchaser. An leak in hose 54 or the connections thereto, w1ll also be apparent froln inspection of the .-glass cylinder. The pipe 107 extends nearly to cap 109 in order that the greater part of the air may be driven out of the glass cylinder when the apparatus is iirst put in use. There will be some air in the cap but'so little that the glass cylinder 108 will normally showfull of` liquid.

In operation, one or both of the nozzles 58 are removed from their supporting levers 62, as required. The removal of either one of the nozzlesuneoversan opening 85 throughwhich access maybe had tothe finger piece 84 of one of the levers 84. Such finger piece is depressed manually and the depression of eitherV one will move the left hand lever .81 in Fig. 3 so as to raise button 82 and close switch 75, whereby motor 24 is s arted and pump 22 operated. In case one ozzle only is removed from its lever 62, the raising of button 82 will lower button 74 which will depress .plunger 76 and link 70 and thereby move that lever 62 in a direction such as to open the valve ,87 to which this lever is connected, in case the lever has not already been so moved. Usually, it is arranged so that the -lever 62 has to be manually raised in order to open its valve 87 against. the I pressure of the l pumped liquid, although aslheretofore described, the lever is sometimes overbalanced suiiiciently so Vthat it will swing and open its valve 87 as soon as nozzle -58 is removed therefrom. Having started the pump and opened one or'both of the valves 87 accordingly as one or bothof the nozzles 58 are to be used, such nozzle or nozzles are inserted in the filling opening or o enings of the tank or tanks to be filled.- -he operator'then opens the valve of each nozzle by pressing on the lever 60. The meter or meters 36 register the quantities dispensed and the operator stops the flow by releasing lever 60, when the desired quantities have been dispensed through hose or hoses 54. The valves of both nozzles 58 may be closed while motor 24 is running but this does no harm because the relief valve 40 will open and bypass the pumped liquid.

As soon as the desired amount of liquid has been dispensed the nozzle 58 is hung up on its lever 62. The result will bea closing of that valve 87 which controls the flow to the nozzle thus hung up. The hanging up of one nozzle will not raise link far enough to o erate button 74 and open switch 75 but the anging up of both nozzles will raise link 7 0 suiciently to eect this result, thus stoppii'rghthe operation of the pump. I

en the apparatus is to be locked u4 as at night, it is simply necessary to padloclil the nozzles to their su porting levers. This can- 70.

not be done unti v.each nozzle is properly placed onk its lever. When the nozzles are so placed, the following results are effected?- (1): The discharge'end of each nozzle lies insidecasing 17 and is` protected against the weather, (2) operation of valve levers 60 is plevented by 1ugs.65, and (3) access to the swiprtch 5 is prevented vby the guards 61 which close the openings 85.

The arrangement by which the hanging up of all the nozzles 58 automatically stops the ,pum while the hanging up ofless than the who e number of nozzles does not, is importantas a convenience and avoiding' needless consumption of power by motor 24. As soon as operation of the motor is no longer re quired, it is automatically shutoff if the operator hangs up the nozzle as he should. No

other means are provided for supporting the nozzle, when not in use, andv thus the oper-` ator is practically forced to use the lever 62,

ieces 84 of levers 81 for operating A as intended. The arrangement for locking the hose nozzles to the levers 62, so that operation ofthe valves thereof is prevented, is also a feature of the .invention as is also the arrangement whereby the nozzle guard 61 prevents access to the switch operating levers In the event that the dispenser mcludes only one hose, the hanging up of the nozzle of that hose on its lever 62 will be made to open the switch 75. The apparatus, as shown, will so function for, if one of the levers 62 is permanently held down, just as it is by the weight of a hose nozzle, the other lever 62 under the weight of its hose nozzle will open switch 75. l v

I am aware that dispensing apparatus'of the type including a power-driven pump, a meter in the discharge line from the pump and a by-pass around the pump, which is be forced by said means, means interposed in l each conduit for measuring the liquid passing therethrough, each -such conduit including a flexible hose terminating. in a nozzle, a plu-v f' rality of supports one for each hose nozzle en which such nozzles may be hung when not in use, means for starting said pumping means in operation, and means operablefonlywhen al1 said nozzles have been hung on their re-..

spective supports to stop the operation of said umping means.

2. iquid dispensing apparatus,compris ing, power-operated pumping means', a plurality of discharge conduits connected thereto and each including a flexible hoserterminating with a nozzle, va valve interposed in each of said conduits, a plurality of members one for each valve movable independently to open or-close their respective valves, each of said members serving also to support the nozzle of that hose the flow through which is controlled by the valve operated by such member, each of said members movable by the weight of its nozzle into position to close its valve, means for starting said pumping means, and means controlled jointly by said members for stopping said pumping means when all said nozzles are hung up on their supporting members. l

3. Liquid dispensing apparatus, comprising, .power-operated pumping means, a plurality of discharge conduits connected thereto and each including a fiexible hose terminating with a nozzle, a valve interposed in each of said conduits, a plurality of members one for each valve movable independently to open or close their respective valves, each of said members serving also to support the nozzle of that hose the flow through which is controlled by the valve operated by such member, each' pf said members movable by the Weightnot" its nozzle into position to close its valve, means for starting said pumping means, and means automatically operable` when all said valves are closed to stop said- ,controlled by the valve operated by such member, each of said members movable by the weight of its nozzle into position to close its valve, means for starting said pumping means, and means operable only when all said nozzles are hung on their respective supporting members to stop said pumping closed casink housin both said means and part vof sai conduit leaving the 'hose and nozzle outside the casing, a member 'reject-- ing out from .the casin to support e nozzle-when not in use an to which the nozzle can' be locked, an' opening'in the casing substantiallyclosed by said nozzle when thevilatter is ,hung up on said support, and means within the casing accessible only 'through said opening for starting said` pumping means.

6.' Liquid dispensing apparatus, comprising, power-operated pumping means, a. discharge conduit connected thereto and including a flexible delivery hose terminating with so. 4a nozzle,means for measuring the liquid the nozzle when hung thereupon' to stop said pumping means.

7. Liquid dispensing appartus, comprising, power-operated pumping means, a discharge conduit connected thereto and including a flexible delivery hose terminating with a nozzle, means for measuring the liquid passed through said conduit, a normally closed casing housing both said means and part of said conduit leaving the hose and nozzle outside the casing, a member projecting out from the casing to support the nozzle when not in use and to which the nozzle can be locked, an opening in the casing into which the delivery end of said nozzle must be inserted before it can be hung up and locked to said member, an opening 1n the casing substantially closed by said nozzle when the latter ishung up on said support, and means within the casing accessible lonly through said second-named opening for starting said pumping means.

8. In a liquid dispensing apparatus, a casino', pumping means housed therein, a dischirge conduit, a fiexible hose connected to the latter and disposed outside said casing; a nozzle on the delivery 'end of said hose having a valve, a lever for operating the same and a guard for said lever; 'a member projecting out from the casing on which the nozzle may be hung up by its guard, the latter having an opening and said member having a partv projecting through said opening into the path of said lever so as to prevent movement thereof for opening said valve, and means whereby said nozzle may be locked to said lever.

9. Liquid dispensing apparatus, comprising, electrically-operated pumping means, a

i pair of conduits through which liquid may e pumped by said means, means interposed in each conduit for measuring the liquid umped therethrough, each conduit 'includ' ing a flexible hose terminating with a nozzle, a pair of levers one for each hose on which the-nozzles'of the hoses may be hung when not in use, a link connecting said levers a e switch overlying said l1nk,.and a member or opening said switch movable by said link when either nozzle is hung von its lever andv movable suiliciently to open said switch only when both nozzles are hung on their levers.

10. Liquid dispensing apparatus, comprising, electrically-operated pumping means, a

discharge conduit including a exible'hose, a

nozzle on the delivery end of the hose having a yalve, a lever for operating the valve, a guard for said lever secured to the nozzle and having an opening, and a support on which the nozzle may be hung up by its guard, said support having a part extending through said opening and into the path of said lever so as to prevent movement thereof for opening said valve.

In testimony whereof I have aiiiXed my signature.

Y JOHN B. DAVIS.

pair of conduits through which liquid may be pumpedv bysaid means, means interposed in each conduit for measuring the liquid pumped therethrough each conduit includin a flexible hose terminating with a nozzle, a va ve in each conduit, a lever for each valve movable to open and closethe same, said levers serving also to support said nozzles when not in use and each movable by the weight of its nozzle into position to close its valve, a link connecting said levers, a switch overlying said link, and a member for opening said switch movable by said link when either nozzle is hung on its lever and movable suiiciently to open said switch only when both nozzles are hung on their levers.

11. In a liquid dispensing apparatus, poweroperated pumping means, a pair of conduits through which liquid may be forced by said means, each said conduit including a iexible hose terminating in a nozzle, a support for each nozzle movable from one position to another under the weight of the nozf zle, connecting means between said supports movable on movement of either support but movable to a greater degree when both nozzles are hung up on their supports than when only one nozzle is hung up, and a control device for said power operated means operable by .movement of said connecting means to stop the power operated means only when both nozzles are hung up on their supporting means.

12. In a Aliquid dispensing apparatus, a discharge conduit including a exible hose,

.a nozzle on the delivery end of the hose havreceive a padlock, whereby the nozzle may be ,y

locked to said su port.

13. In a liqui dispensing apparatus, a

lll

Images