US1637146A

US1637146A - Liquid-dispensing apparatus

Info

Publication number: US1637146A
Application number: US721484A
Authority: US
Inventors: William T Hatmaker; Earl E Eickmeyer
Original assignee: NAT RECORDING PUMP Co
Current assignee: NAT RECORDING PUMP Co; NATIONAL RECORDING PUMP Co
Priority date: 1924-06-21
Filing date: 1924-06-21
Publication date: 1927-07-26
Anticipated expiration: 1944-07-26

Description

July 26,

W. T. HATMAKER ET AL LIQUID DISPENSING APPARATUS Filed June 21. 1924 4 Sheets-Sheet 1 /NVENTO/?5.' W THATMAKER. E. E E/CKMEYEA.

ATTORNEY July 26 1927.

w. 'r. HATMAKER ET AL LIQUID DISPENSING APPARATUS Filed June 21. 1924 4 Sheets-Sheet 2 //v LEA/Toes.

14 THAT/WAKE? E. E/c/(ME YER.

1 w-l ATTORNEY 1,637,146 July 26 1927 w. r. HATMAKER. ET AL LIQUID DISPENSING APPARATUS Filed June 21. 1924 4 Sheets-Sheet 3 w l/E/V 70/?5. 14/. 7. HA TMA KER. E. 5. E/CKME YER ATTORNEY July 26, 1927.

w. T. HATMAKER ET AL LIQUID DISPENSING APPARATUS Filed June 21. 1924 4 Sheets-Sheet 4 Mm H M N WK R AM m 7 .5 A E Patented July 26, 1927.

, UNITED STATES. PATENT OFFICE.-

' WILLIAI T. HATMAKER AND EARL E, EICKMEYER, OF DAYTON, OHIO, ASSIGNORS TO THE NATIONAL RECORDING PUMP COMPANY, OF DAYTON OHIO, A CORPORATION 01' OHIO.

LIQUID-DISPENSING APPARATUS.

Application filed June 21, 1924. Serial No. 721,484.

This invention relates to a liquid dispensing apparatus and more particularly to means for controlling the operation of a registering device associated with' such an apparatus. 1

Liquid dispensing apparatuses, such as gasoline pumps, are commonly provided with a device to register the amount of liquid dispensed thereby, this registering device heing controlled by the operation of the pumping mechanism. Such pumps are also sometimes provided with audible signals which are sounded upon the-comp etion of the delivery of each specified quantity of liquid.

Certain types ofdispensing apparatus are also provided with means for disconnecting the cylinder, 01'' cylinders, from the discharge line and for connecting the same with the tank or inlet end of the cylinders, this being for the purpose of permitting the pump piston to be restored to its initial position, at one end of the cylinder, when the delivery has been completed with the piston in an intermediate position as when the amount of liquid delivered involves a fraction of the quantity which would be delivered by the pump upon a full stroke of the piston. Inasmuch as the liquid which is thus by-passed or returned to the tank would not be sold it is desirable that it should not beregistered on the registering device.

Therefore, one object of the present invention is to provide means controlled by the by-pass valve for rendering the registering device'inoperative when the ,pump cylinder is connected with the by-pass, and disconnected from the discharge line, The term by-pass as herein. employed, is intended to include any conduit through which the liquid may be diverted to a point of delivery, other than the usual discharge line, and the term by-pass valve is intended to include any device for controlling the diversion of liquid through the by-pass.

A further object of the invention is'to pro-. vide means controlled by the by-pass valve for rendering the audible signal inoperative.

A further object of the invention is to provide'such a mechanism which will be simple in its construction, positive in its operation, and which will not interfere with the normal operation of the pumping mechanism or the registering device.

Other objects of theinvention will appear as the apparatus is described in detail.

In the accompanying drawings Fig. 1 is a front elevation, partly broken away, of a dispensing apparatus showing our invention applied thereto; Fig. 2 is a side elevation of i the connecting mechanism between the regis- 6 tering device and the pumping mechanism; Fig. 3-is a top plan view of such a connecting mechanism; Fig. 4 is a front elevation of a dispensing apparatus showing the modified form of the invention applied thereto; Fig. 5 is a detail view of the connecting mechanism of said modified form of the apparatus, showing the same inits operative position; Fig.- 6 is a similar view showing the connec-. tion mechanism in its inoperative position; Fig. 7 is a side elevation of the connecting mechanism of the apparatus shown in Fig. 4; Fig. 8 is a lan view of the same; and Fig. 9 is a sectional view taken on the line 99 of Fig. 7. v

In these drawings we have illustrated two embodiments of our invention, operating on the same principles but difiering somewhat in construction, and have shown both embodiments as applied, to a double 0' linder gasoline pump. It will be unde'rstoo however, that these two embodiments have been .chosen for the purpose of illustration only and that the apparatus may take various form's, and maybe applied to liquid dispensing devices of various kindswithout departing from the spirit of the invention.

Both embodiments of the invention are shown as ap lied to a double cylinder gasoline pump 0 a well known construction and comprising cylinders 1 connected at their upper ends with a single dischar e line 2 through which the liquid may be de ivered to a suitable pointof discharge, this discharge line being usually connected with a flexible hose, the nozzle of which may be inserted in the receptacle to'be filled. Mounted in each, cylinder is the usual piston, which is not here shown, but which is actuated by a piston rod 3 having connected therewith and forming a part thereof a toothed rael'rfi i. The teeth of the two I'flCkSWIOBSh with'the opposite edges of a driving gear 5, shown in dotted lines in Fig. 4 as mounted on a shaft 6. This gear is operatively connected with a suitable source of power, such as a.

crank 7, also shown in Fig. 4. The drivin connections between the source of power an the gear 5 may be of any suitable character and inasmuch as they do not form any part of the present invention they are not shown or described. The cylinders are also provided at their .upper ends with a byass controlled by a valve 8, by means of w rich the connection between the cylinders and the discharge'line 2 may be interrupted-and the cylinders connected with a conduit or line leading back to the tank or to some pomt of discharge other than the discharge line. The bypass and its controlling valve form no part of the present invention and are not here shown or described in detail but are similar in character to those shown in Patent No. 1,352,664, granted September 14, 1920, to W. T. Hatmaker. It will benoted that the upper ends of the two cylinders are mounted in a casting 9 having an upwardly extending portion in which the bypass valve 8 is mounted, the valve stem 10 extending above this casting and being, in the present instance, arranged in a substantially vertical position.

Extending upwardly into the casting 9 are suitable uprights or standards 11 which support at their upper ends a frame 12. Mounted on this frame, at the top of the apparatus, is a registering apparatus which, as here shown, comprises a stationary dial 13 and a pointer 14 mounted on the shaft 15 for movement over the dial. The actuating device for the registering apparatus comprises a ratchet wheel 16 rigidly secured to the shaft 15 in the rear of the dial and cooperating with this ratchet wheel is a pawl 17 mounted on a pawl carrying arm 18, which is pivotally mounted on a fixed axisat 19. The pawl carrying arm 18 and the shaft 15 are here shown as mounted on a bracket 20 extending upwardly from the frame 12. Connected with the pawl carrying arm 18 and, if desired, formed integral therewith, is an operating arm 21 which is adapted to be connected with the pumping mechanism in such a manner that the registeringdevice will be actuated in accordance with the amount of liquid delivered by the pump through the discharge line.

The connection between the actuating device for the register and the pumping apparatus may take any suitable form but it preferably comprises amovable part which, when in one position will render the connection operative and when in another position will render the connection inoperative, and the position of this movable part is controlled by the position of the by-pass valve 8. In both forms of the apparatus here shown the connecting mechanism comprises an arm pivotally mounted on a fixed axis and having one end connected with the operating arm 21 of the actuatin d i f r th register. This arm is connected with the piunping mechanism, preferably through the medium of a cam, in such a manner that the connecting arm .will make one complete oscillation about its axis and thereby impart one complete movement to the registering device upon the delivery of each specified quantity of liquid. That part of the connection which is moved to control the operation thereof may be interposed either between the arm and the register actuating device or between the arm and the pumping mechanism.

In that form of the apparatus shown in Figs. 1 to 3, the movable part is inter osed between the arm and the actuating tevice for the register. In this form of the device the connecting arm is shown at 22 as mounted on a fixed axis, and preferably it is mounted on a stud 23 carried by a bracket 24 secured to the frame 12. This arm is acted upon at a point spaced from its axis by a cam which is operatively connected with the pumping mechanism and is so arranged as to impart one complete movement to the arm upon the delivery of each specified quantity of liquid. The arm may make one complete movement for each complete stroke of one of the pistons or it may make more than one complete movement during each stroke of the piston but in either instance each complete movement of the arm represents a definite quantity of liquid delivered. As here shown, the arm 22 is provided at a point spaced from its axis with a stud or projection 25 which extends into a cam slot 26 formed in one face of a cam disk 27 rigidly secured to the shaft 6. This arm 22 is connected with the actuating device for the register by a rod 28 which is pivotally connected at one end with the operating arm 21 of the register actuating device and is pivotally connected at its other end with the arm 22. This latter connection is adjustable toward and from .the axis of the arm 22, theend of the rod 28 being preferably slidably mounted on the arm. In the present instance, the arm 22 has an elongated slot 29 extending lengthwise thereof and the lower end of the arm 28 carries a projection or stud 30 which extends into and travels in the slot 29. It will be apparent. therefore, that when the connecting stud 30 is in its outer portion in the slot 29, that is. the position spaced furthest from the axis of the arm, the movement of the arm will be transmitted through the rod 28 to the register actuating device and this movement. will be suflicient to advance the register upon each operation of the arm. \Vhen the connecting stud is moved to the inner portion of the slot 29, adjacent to the axis of the arm. the movement imparted by he arm to the rod 28 will be so slight that it will not impart operative. movement to the register opby the arm 33 of thebell cr'ank lever this device the cam block 34 has secured crating device and consequently the connection between the umping mechanism and the register operating device will be inoperative. The position of the connection between the rod 28 and the arm 22 is controlled by the position of the by-pass valve 28 and, in this form of the device, ,a bell crank lever 31 is pivotally mounted on a block 34 is rigidly secured to the valve stem and provided with a cam slot 35 into which extends a projection or stud 36 carried In thereto an operating handle 37 by means'of which the by-pass valve is actuated. It will be apparent, therefore, that when the bypass valve is in its normal position, as shown in Fig. 1, the connection between the rod 28 and the connecting arm 22 will be spaced from the axis of the arm such a distance as to render the connection between the pump ing mechanism and the registering device operative, but when the b'y-pass valve has been actuated to divert the liquid through the bypass this connection will be moved to a point adjacent to the axis of the arm 22 so that only a very slight movement will be imparted to the operating arm 21 and this movement will not move the pawl sufficiently to cause the ratchet wheel to be operated, thereby rendering the connection between the pumping mechanism and the registering de vice inoperative.

The apparatus is also provided with an audible signal here shown in the form of a bell 38 mounted on the frame 12 and having associated therewith a bell tapper 39. In the present construction, this bell tapper is carried by one arm 40 of a bell crank lever which is pivotally mounted at 41 and has at its other end a nose 42 arranged to be engaged by a projection 43 carried by a bell actuating member or plate 44, which plate'is capable of vertical movement. The arrange ment is such that the upward movement of the plate 44 will move the bell crank lever, about its axis and retract the bell tapper and as the plate reaches the upper limit of its movement the projection 43 will clear the nose 42 of the lever and release the bell tapper so that the latter may be moved downwardly by a suitable spring. In the present device this spring is shown at 45 as connected with a laterally extending portion 46 formingpart of the arm 40 of the bell crank lever. The bell actuating member or plate 44 may be operated through any. suitable connection with the pumping mechanism which willcause it to be operated atf'the proper time and inasmuch asthis connection forms no part of the invention it is not here shown. The connecting rod 28 is so arrange'dthat when this rod has ,been moved into a position to V interrupt the connection bet-ween the pumping mechanism and the registering device it willengage a part car-' ried by the extension 46 of thebell'crank lever and hold thebell 'tapper in'an inoperative. position. Ashere shown, the connecting rod 28 is soarrange'd that when in its in operative positionit'will engage a pin 47 bymeans of which the spring 45 is connected withthe-ext-ensibn 46 o'f'the lever. When the connecting rod is in its'operative position it will be spaced-{such a distance from pin 47 that it-wi-ll'not interfere with the operationof th b taPp-er. V I

In that form of the "apparatus showin in Figs. 4to 9, theconnection between the reg-- istering device and the puinpingmechanisnr comprises an arm50 prv'otallyfmountedon a stud 51 carried by the frame '12,'and a-connecting rod 52 is pivotally connected at its respective ends with the arm 50 and the operating arm 21 of the register actuating device. Movement is imparted to the connecting arm 50 through the medium of a second arm-53 which, in the present instance, is also mounted on the stud 51 and which is provided with a projection or stud 54 extending into the cam slot 55'formed in one face of a cam disk 56 secured to the shaft 6. The lower end of the arm 53 has pivotally connected therewith a link 57 the opposite end of which is pivotally connected with the lower end of a second link 58, by means of a pin 59, and the upper en'd'of this link 58 is pivotally connected with the connecting arm 50. In the present instance, the upper end of the link 58 is connected with the arm 50 by a pin 60 which also serves to connect the lower end of the connecting rod 52 to that arm, thus the link 58 extends substantially in line with the rod 52. A controlling arm 61 is connected with the

links

57 and 58 and is preferably pivotally mounted on the pin 59 by means of which these links are con-. nected. This controlling arm extends up- .wardly to a point adjacent to the connecting arm and is pivotally connected to the free end of an arm 62 which is pivotally mounted and will therefore impart no movement to the connecting arm"50, the connection between the pumping mechanism and the'regthus rendered inoperaistering devise bein tive. The adjust-a le fulcrum or pivotal connection between

thearms

61 and 62 is shifted by means under the control of the bypass valve 8. In the present device, an arm 64Jis' mounted on the stud 63. and rigidly connected with' the arm 62. A connecting rod 65 is connected at its upper end with the rod 64 and at its lower end with a lever 66 pivotally mounted on a bracket 67 carried by one o'f thestandards 11. This lever is acted upon by a cam connectedl witlrthe valve stem 10 and, as here shown this cam is in the form of a laterally extending plate68 which] extends between two projections or rollers 69 carried by the lever 66 so' that the movement of the cam plate 68 about the axis of the valvestem will cause the lever 66 L0 7 be rocked about its axis,'tl1ereby imparting movement to the arm 64 and causing the adjustable fulcrum tobe moved from one position to the other. A

This form of the apparatus is'also provided with an audible signal, which is shown as a bell 70 mounted on the frame 12 and having associated therewith abell tapper 71' which is carried by the hub of an arm 72 pivotally mounted adjacent thereto and preferably on the stud 51 which carries the connecting arm 50. A spring 73 acts on the arm 72 to move.the bell tapper toward the lin bel tapper arm 72 will move that arm about "its'axis to retract the bell tapper and will hold thetapper retracted soslong as the conbell, and the arm 72 is actuated to retract the bell tapper by means of a dog 74 pivotally "mounted" referably on the stud that supports the be 1, and arranged to engage a projection 75 carried by the arm 72 above its axis. The dog is connected through suit-.

able mechanism with the pumping apparatus which will cause it to be operated at the proper time but inasmuch as the means for actuating this dog forms no part of athe present invention it is not here shown or described. That edge of the bell tapper con trolling arm 72 ad acent to the controlling arm 64 is inclined or provided witha cam surface, as shown at 76, over which the end of the controlling arm will ride when that arm is aetuatedto render the connection between the pumping mechanism and the re ister inoperative. The length of the c'ontrfi arm issuch that its contact with the nection between the pumping mechanism and the registering device is inoperative, that is, so long as the by-pass valve is open,

While we have shown and described one embodiment of my invention we wish it to be understood that we do not desire to be, limited to the details thereof as various modifications may appear to a person skilled in the art.

Having now fully describedour invention, what we claim, as new and desire to secure by Letters Patent, is

1. In a dispensing apparatus, the combination with pumping mechanism comprising a cylinder and a discharge line, a by-pass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and aregister, of an actuating device for said register, means for connecting said actuating device with said pumping mechanism comprising a part movable into a position to render said connecting means inoperative, and means controlled by said by-pass valve for actuating said part.

2. In a dispensing apparatus, the combination with pumping mechanism comprising a cylinder and adischarge line, a by-pass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a register, of an actuating device for said register, means for connecting said actuating device with'said pumping mechanism comprising a part movable into a position to render said connecting means inoperative, a cam connected with said bypass valve, and-means actuated by said cam to move said part from one positionto another.

3. In a dispensing apparatus, the combination with a pumping mechanism comprising a c linder and a discharge line, a bypass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a registering device, of means for operatively connecting said registering device with said pumpin mechanism, comprising a part having an a {)ustable pivot, and means controlled by said y-pass' valve for moving said pivot to a position to render said connection inopera- 115 tive.

4. In a dispensing apparatus, the combination with a pumpmg mechanism comprising a cylinder and a discharge line, a b pass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a register, of an actuating device for said register, a pivoted arm operatively connected. with said pumping mechanism, means )for operatively connecting said arm with said register actuating device, said means comprising a pivot movable into and out of a. position to render said connection inoperative, and means controlled by said by-pass valve for moving said lever.

6.' In a d's'pensing apparatus,the combi; nation-with a pumping mechanism comprismamas ing a cylinder and a discharge line, a bypass to interrupt the connection between said cylinder and said dischargeline, a valve to control said by-pass, and a register, of an actuating device for said register, a pivoted arm operatively connected with said pumping mechanism, means-for operatively; connecting said arm withsaid register actuating device, said means comprising a pivot movable into and out of a position to render said connection inoperative, a lever connected- "with said pivot to move the same from one position to another, and means controlled by said by-pass valve for actuat inga cylinder and aidi'scharge'line, a bycylirider and' said discharge'line, a valvefto control said; by-pass, and a' register, of "an actuating: device for said register, a piv'oted arm operatively connected. with said pumping mechanism, means for operatively connecting said' arm with said register'actuating device, said means comprising a pivot movable into and out of a. position to render said connection inoperative, a lever connected with said pivot to move, the/same from one position to another, and adam connected with said by-pass valve .and acting on said lever to actuate the same.

7. In a dispensing apparatus the combi-' nation with a pumping mechanism, a register associated therewithfand an actuating device for said register, of means for connecting said actuating device with said pumping mechanism comprising a part movable into a position to render said connecting means inoperative, V, and means for actuating saidpart. I a

'8. In a dispensing apparatus, the combination with a pumping mechanism, a regiss ter associated therewith, and an actuating device for said register, of a pivoted arm operatively connected with said pumping mechanism, means for operatively connecting said arm with said register actuating device, said means comprising a pivot n3ovable into and out of a position to render said connection inoperative, and means for shifting said pivot.

9. In a dispensing apparatus,vthe combination with a pumplng mechanism, a register associated therewith, and an actuating device for said register, of an arm pivotally mounted on a fixed axis, a cam connected with said pumping mechanism and" acting on said armto move the same about ts axis, a connection between said arm and said reg- "ister actuating device comprising a pivot movable into and out of a position to renfor shifting sai d lpivot.

der said connection inoperative, and means '10. In a dispensing -appar atus,-the combination with a pumping mechanism, a register associated therewith, and an actuating device forsaid register, of, a pivoted arm operatively oonnectedfwith said pumping said arm and said register actuating device, and means for adjusting said connection with relation to the axis of said pivoted arm. c

11. In a dispensing apparatus, the combination with a pumping mechanism, a register associated therewith, and an actuating mechanism, an operative connection between,

device for said register, of a pivoted arm operatively connected with said pumping mechanism, a member for connecting said the axis ofsaid arm, and means for shifting,said \point of connection.

w 12'. In a dispensing apparatus, the combination with a pumping mechanism comprising a cylinder and a discharge line, a bypass to interrupt the connection between "said cylinder and" said discharge line, a

valve to control said bypass, and a registering device, of a pivoted arm operatively said pivoted arm being movable toward and arm with said register actuating device, the

point of connection of said member with said aim being adjustable toward and from pass'to interrupt the-c'onnection between said from the axis of said pivoted .arm, and

means controlled by said by-pass valve for shifting said point of connection with relation to the axis of said pivoted arm.

13. In a dispensing apparatus, the combination with a pumping mechanism comprising a cylinder and a discharge line, a by pass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a registering device, of an arm pivotally mounted on a fixed axis, a cam connectedwith said pumping ,mechanism and acting on said arm to move the same about its ax1s, a device for connecting sald arm with sald registering 1 device, the point of connection between sai arm and said connecting device being movable toward and from'the axis of said arm, and means controlled by said by-pass valve for shifting said point of connection.

14. In a dispensing apparatus, the combination with a pumping mechanism comprising acylinder and a. discharge line, a bypass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a registering device, of a pivoted arm operatively connected with said pumping mechanism, a connecting member connected at one end with said registering device and slidab ly connected at its opposite end with said arm, and means controlled by said by-pass valve for moving said connecting device lengthwise of said arm.

15. In a dispensing apparatus, the combination with a pumping mechanism comprising a cylinder and a discharge line, "a bypass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a registering device, of a pivoted arm operatively connected with said pumping mechanism and having a longitudinal slot, a connecting member connected at one end with said registering device and having a part at its other end slidably mounted in the slot in said arm, and means controlled by said b pass valve for moving said part of said connecting member in said slot.

16. In a dispensing apparatus, the combination with a pumping mechanism comprisring a cylinder and a discharge line, a bypass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a registering device, of a i connected with said means for connecting said arm with said registering device, the point of connection between saidconnecting means and said arm being movable toward and from the axis of said arm, a lever to shift said point of connection, and means controlled by said bypass valve for actuating said lever.

1?. In a dispensing apparatus, the combis nat on with a'pumpmg mechanism comprising a cylinder and a discharge line, a by-. pass to interru t 'the connection between said cylinder an said discharge line,a valve to control said by'-pass, and a re istering device, of a pivoted arm operativel with said pumping mechanism, means for operatively connecting said arm with said registeringdevice, said means comprising a pivot movable into and out of a position to render said connection inoperative, a piv-- oted arm connected with said pivot for shift ing the same, and means controlled by said by-pass valve for actuating the last mentioned pivoted arm.

18. In a dispensing apparatus, the combination with a pumping mechanism comprising a cylinder and a discharge line, a bypass to interrupt the connection between said cylinder and said discharge line, a valve to control said by-pass, and a re stering de vice, of a pivoted arm operative y connected with said fpumping mechanism, a connectingmember or connecting said pivoted arm with said registering device, the point of connection between said connectingmember and said pivoted arm bein movable toward and from the axis of sai pivoted arm, a lever operatively connected with that end of said connecting member which is connected voted arm operatively" pumping mechanism,

y connected with said pivoted arm, and a cam controlled by said by-pass valve and act-ing; on said lever to shift the point of connection between said connecting member and said pivoted v arm;

said pumping mechanism and acting on said arm to move the latter about its axis,'-said arm having a longitudinal slot, 0. member connected at one end with a registering device and having at its other end a part extendin into the slot in' said pivoted arm, a

aving one end arran'gedto engage.

lever said part of said connecting member to move the same in said slot, and a cam connected with said b -pass valveand'acting on said lever to shift the point'of connection be tween said connecting member and-sa1d p1v-' oted arm.

20. Ina dispensing apparatus, thecombination with pumping mechanism comprising a cylinder and a discharge line, abyass to interrupt the connection between sai cylinder and said discharge line, a valve to control said by-pass, an audible signal, and ac I tuatin means for said audible signal, of a pivote arm operatively connected with said pumping mechanism, a part connected with said pivoted arm, and movable into a position to render the actuating device for said audible signal inoperative, and means controlled by said by-pass valve for imparting movement to said part.

21. In a dispensing apparatus, the combination with pumping mechanism comprising a. cylinder and a discharge line, a bypass to interru t the connection between said cylinder and said discharge line, a valve to control said by-pass, a registering device, an audible signal, and means for actuating said audible signal, of means for operatively connecting said pumping mechanism with said registering device, comprising a part movable into a position to render said-connecting means inoperative, said movable art of said connecting means being arrange to engage the actuating device of said audible signal and hold the same against operation,

means connected with said pumping mechanism a connecting member for connecting said pivoted arm with said registering device, said connecting member being movable with reiation to said pivoted arm to render the connection between said pumping mechanism and said registering device inoperative, and said connecting member being arrangedto hold the actuating device for said 10 audible 'signa] against operation when said connecting member has been moved into a position to render the connection between the pumping mechanism and. the registering device inoperative, and means controlled by said by-pass valve for shifting said connecting member.

In testimony whereof, we afiix our s1gna.-

tures hereto.

WILLIAM T. HATMAKER. EARL E. EICKMEYER.