US1524519A

US1524519A - Measuring pump

Info

Publication number: US1524519A
Application number: US669561A
Authority: US
Inventors: Joncha Anton
Original assignee: OIL PRODUCTS APPLIANCE Co
Current assignee: OIL PRODUCTS APPLIANCE Co
Priority date: 1923-10-19
Filing date: 1923-10-19
Publication date: 1925-01-27
Anticipated expiration: 1942-01-27

Description

Jam 27, 1925.

A. JoNcHA MEASURING PUMP Filed 001'.. 19', 1923 4 Sheets-Sheet l .mun l- A. JONCHA uAsuRmG BUMP v v Filed oct. 19, 192s 4 sheets-sheet 2 Jan, 27, 1925. 1,524,519

A. JoNcHA MEASURING PUMP Filed oct. 19, 192s 4 sheets-sheet s 'l l e c fg f .,Jan. 27, 1925. v

A. JONCHA 4 Sheets-Sheetl 4 Patented Jan. 27, 1925.

UNITED STATES iftl) PATENT OFFICE.

ANTON JONCI-IA, OF MELROSE PARK, ILLINOISASSIGNOR TO OIL PRODUCTS APPLI- ANCE COMPANY, 0F MAYWOOD, ILLINOIS, A. CORPORATION OF ILLINOIS.

MEASURING PUMP.

Application led October 19, 1923.

To all whom it may concern:

Be it known that I, ANTON JoNoHA, a citizen of the United States, residing at Melrose Park, in the county of Cook and State of Illinois, have invented certain new and usew rful Improvements in Measuring Pumps, of

which the following is a specication.

'I his invention relates to measuring pumps, for delivering a predetermined quantity of liquid at each upward stroke of the pump rod. In carrying out the invention I provide a rack on the pump rod and mechanism associated with the rack for moving it in both directions by a continuous rotation of the crank handle, this mechanism including a clutch member and means for automatically shifting said member at pr determined points in the upward travel of the pump rod and at the end of the downward stroke of the same. The invention comprises novel mea-ns for moving the clutch member to cause a reversal of the pump stroke, and novel means for timing the operation of the clutch-moving means to movements of the pump rod whereby the upward movement of the rod will be stopped when an exact predetermined amount of liquid has been delivered. T he invention also includes means whereby the quantity of liquid delivered at each stroke of the pump may be varied, as desired, and means for locking the clutch member in neutral position so that the pump cannot be used by unauthorized persons. The invention also comprises va.- rious details of construction hereinafter more` particularly described.

In the accompanying drawing which illustrates the invention, v

Fig. v1 is a side elevation of the pump, partly broken away, looking from left to right in Fig. 2, the gear housing and part of the rack bar being shown in vertical section;

Fig. 2 is a front elevation of the pump, partly broken away;

Fig. 3 is a section on the line 3 3 of Fig. 2;

Fig. 4f is a section on the line 4--4 of Fig. 3,

Fig o is a section on the line 5-5 of Fig. 3

`Fig. G is a section on the line 6-6 of Fig, 2,

Fig. 7 is a 'liront elevation of the lower part of thel gear housing,-partly in section,

Serial No. 669,561.

showing the locking mechanism for the clutch wheel;

,y Fig. 8 is a section on the line 8-8 0f F g Fig. 9 is a rear perspective view of the rack bar and various operating parts;

Fig. 10 is. a detail view, looking from left to right in Fig. 9, illustrating the action of the parts for shifting the clutch wheel, the cam actuated by the pump being shown in the position where it has just passed over the center of the spring plunger, during the upward movement of the pump rod; and,

Fig. 1 1 is a similar view showing the posi tions of the part-s after the cam and clutchshifting lever have both passed the centers of the plungers which bear against them and the clutch wheel has been shifted.

Referring to Figs. l and 2 of the drawing, a represents the 'base of a pump upon which is mounted a column I), and on the upper end of the column is secured a gear casing c. The gear casing is partially supported and steadied by the delivery pipe d of the pump, which is clamped within a sleeve 1 on the casing by a set screw 2. The pump rod 3 carries a. three-sided rack e which is engaged by a pinion 4t, which pinion is keyed to a countersha-ft 5, journaled in suitable bearings in the sides of the casing. The

pinion 4f also meshes with an idle pinion 7, i

mounted upon a stud 8, and the idle pinion meshes` with a pinion 9, mounted to turn upon a crank shaft 10. The c-ountershaft also carries a relatively large gear l1, which is secured to it, and this large gear meshes with a pinion 12 mounted to turn upon the crank shaft 10, The hubs of the

pinions

9 and 12 are spaced apart and provided with clutch teeth 13, and upon a squared part of the shaft 10, between these hubs, is mounted a clutch wheel y, having teeth 14 on its opposite sides, as shown, for engaging the teeth on the hubs of the

pinions

9 and 12.

When the clutch wheel is in engagement with the pinion 12 and the crank shaft is turned by the handle 10"', in the clockwise direction, the pinion 12 will be turned with said shaft and this will drive the gear 11. and pinion 4C in the direction to raise the rack and pump rod. Then the clutch engages the pinion 9 and the crank shaft is turned in the clockwise direction, the pinion 9 will be turned and will drive the idle gear 7 and pinionl 4 in the direction to lower the Cil llO

raclg 'and pump rod. When the pinion 9 is in engagement with the elutch wheel, the

pinion 12 turns loosely on the crank shaft, and when the pinion 12 is drivenby the clutch, th'epiinion 9 turns loosely on the crankshaft. As the pinion 12 drives the pump rod and rack through the large intermediate gear 11 while the pinion 9 drives it through a smaller gear or pinion 7, the upward movement of they rack and pump rod jwill be sjlowert-han the downward or return movement.

In order ,that the pump may deliver al` nieasuredvquantityot liquid on its upward stroke, I provide means tor automatically shattingthe clutch wiieel from engagement withthe'pinion 12 into engagement with the pinion 9,"a-t`ter the pump rod has made a vgiven upward movement; and after the clutch `wheel has been shifted the lcontinued rotation of the cria-nk shaft in the same direction oausesfthe rack and pump rod to desciend toits lowermost posit-ion. where the clutch wheel is again automatica]lj;

shifted sothiat the rack and rod will again move upward todeliver another measured yquantity ot liquid it the hand crank is.

ttirned inthefsame direction as before. l

also provide means for cont-rolling theV clutch Shifting mechanism so as to shorten or lengthen the stroke ot the pump, to deliver.'dieientmeasured quantities ot' liquid Ivvhich extendstransversely in the gear easat the-rear ofthe rack is arranged a tap pletileverfgg whichis secured to a sleeve 19,

this sleeve being islidably and totata'bly mounted upon the rod. The toi-ward arm 2O 'ofl the tap-pet, lever pro-jects into the space between the opposing sides of the rack and thesleeve may be adjusted to bring said arm the path ot movement ot anyone ot the

stops

15, 16, or 17. As shown in Fig. 9, said Yarm is inthe path ot movement of the stop 15. 2AFor adjusting the tappet lever. l provide 4a shaft 21 which extends forwardly throughfthe casing and is provided at its vcn i'ieiarend withan arm or lever 252i which engages a` pocket '23 on the sleeve. On the torward end of the shaft 21, outside roft the casing, is arranged an, index arm or pointer 211 fwhieh is movable to diferen'tipoints on an .v lexpl-ate 25 arranged on the front ot the vcra-sing. This index lplate has marks 151 16, 4and 1 7, to indicate dilferentmeasured quantities of lliquid` whichthe pump will deliver when the index iarm is seit inthe dit'- teient positions. Thus, when the index arm set opposite vthe point a, the tappet lever willbe in line withthe uppermost stop 15 `be over the stop 1,6b or 17".

yon .the rack and the tappet lever will hc stop v1 7 will engage and rock the tappct lever to cause a reversal ot the pump rod. li the index arm is moved to a point oppos'te the mark 16a, the tappet lever will he slii'tted into the path of movement of the stop 16, which intermediate the stops 15 and 17 and it will rock the tappet lever atter the pump rod has made an upward movement intermediate the movements row trollcd by the stops 15 and 17.

The rear arm 20 ot the tappet lever projects over the rear arm26 of a trippingA lever /i which is Centrally mounted to roclc on a rod or bar 27, which extends trans' versely of the gear casing below the bar 1S. llpon this tripping lever are three veitically adjustable stops. 15", 16". and 17". arranged so that when the forward end of the tappe'. lever is in the path of movement of the stop 15 on the rack, its rear end will extend over the stop 15b; and similarly when the forward end ot the tappet lever is arranged in the piafth olmovement of the stop 1 6. oro? the stop 17 ythe rear end of said lever will` These adjust` able stops are provided in order that thi` trip-ping lever may perform its function ot causing the clutch gear to shift at an exact point in the upward movement of the pump rod, when the proper quantity of liquid has been delivered. An adjustable stop QS ii arranged beneath the rear end ot the tripA ping lever for limiting.r the rocking moveA ment ot the latter.

The forward arm 26 of the tripping lever extends beneath an arm 29 which projects laterally from a heart-shaped cam j. which has an oscillating movement upon a shaft il() which extends forwardly through the casing andis provided on its outer end with a suitable handle 31. The camr 7' is integral with a sleeve 3Q which is journalcd on said shaft and this sleeve has at one end a lui'` 3J which interlocks with a similar lug $13" on a sleeve i, which is secured to th(` shaft b v a pin 34,. The lugs 39. and 33 are less lthan 180 in length so as to provide a lost `inot1on connection between the sleeve 3Q and 3?) and therefore also between the slecvfi and the shaft 30 on which the sleeve 3? is secured. The sleeve 212-1 carries a clutchshitting arm In which extends into the space between flanges 35. on the clutch wheel. An ott-center devicd o is provided for prrventing the clutch shifting arm from occupy# ing a neutral position and for causing said arm to hold the clutch wheel in engagement with the teeth on one or the other of the pinions 9 or l2. This device comprises a plunger 36, having a wedge-shaped end and impelled by a spring 37 against the clutch shifting arm, which has a central radial ridge 3S between two oppositely sloping cam faces 39 which are adapted to be engaged by the wedge-shaped end of the plunger. Beneath the heart-shaped cam is arranged an olf-center device p, similar to the device o but having a spring 4:0 which is much stronger tha-n the spring 3T. This latter off-center device comprises the spring 4,0 and the plunger il which is pressed upwardly by said spring against the cam '7'. The end of the plunger 4:1 is wedge-shaped, as shown.

Then the pump rod and rack are moving upward and before any of the stops on the rack bar have engaged the tappet lever, the parts are in the position shown in Fig. 9, with the clutch wheel engaging the pinion 12, indicated in dotted lines in said figure. lhen the stop on the rack bar, which is in line with the tappet lever, engages and rocks the latter, said lever causes the tripping lever to rock and the latter in turn moves the arm 29 of the heart-shaped cam upward and the cam causes the plunger 4l of the device p to be depressed and the pointed end of the cam passes over the end of the plunger, as shown in Fig. 10. During this movement of the cam, which is relatively slow, the clutch wheel f is not moved owing to the lost 1notion connection between the sleeve of the cam and the sleeve of the gear sl'iiftii'ig lever and to the fact that the olf-center device presses the clutch shifting lever in the direction to hold the clutch wheel in eugagement with the pinion l2. After the point of the cam has passed beyond the center of the plunger al a suiiicient distano to take up the lost motion between the cam sleeve and the sleeve of the clutch shifting lever, as shown in Fig. 10, the pressure` of the springe() against the plunger 4l causes the latter to rock the cam and the latter turns the clutch arm 1, causing the clutch wheel to be quickly disengaged 'from the pinion l2 and moved into engagement with the pinion 9. As the clutch-shifting lever passes its central position, the cam surface at one side of the radial ridge 38 on said lever presses the plunger 36 backward against thetension of the spring` 3.7, and the plunger then springs outward and bears against the cam surface on the opposite side of the radial ridge to hold the clutch in engagement with the pinion 9 while the cam j is being moved to shift the clutch in the reverse direction at the end of the downward stroke of the pump rod. Vhen the clutch wheel is shifted from the pinion i2 to the pinion 9, the upward movement of the rack and pump rod ceases, and if the movement of the crank shaft is continued the pump rod and rack will be driven downward. At the lower end of the. stroke of the pump, an adjustable stop 42 on the side of the pump rack, near its upper end, bears upon the arm 29 of the cam j (which is then in the raised position shown in Fig. ll), and this causes the cam to rock in the reverse direction. In this rocking movement it depresses the plunger 4l and rides over the pointed end of the plunger, after which the plunger springs upwardly` causing thel cam to continue its movement and actuate the clutch lever in the direction to shift the clutch pinion into engagement with the pinion l2, and the olf-center device o is pressed backward by the clutch shift# ing lever and then springs forward to press said lever in the direction to hold the clutch wheel in engagement with the pinion l2.

By adjusting the adustable stops b, 16", 17h, upward or downward, the time in the stroke of the pump at which the cam will be carried over the center of the plunger 4l, to reverse the gearing, may be accurately determined. By properly setting the adjust able stops, the exact measurement of liquid H' may be delivered by the pump to correspond with the quantities indicated by the several points or marks on the index plate.

ln filling tanks from the pumps, it happens frequently that the tank will be completely filled before the pump has finished its upward stroke. For that reason it :is dcsirable to have means for reversing the gear ing at any point in the stroke of the pump. This may be accomplished by turning the shaft by means of the handle 3l so as to `cause the clutch lever to move the clutch wheel out of engagement with the pinion 12 and into enga-gement with the pinion 9.

ly thus turning the shaft 30, the cam j willv le thrown past the end ot' the plunger 41 and the plunger, as before described, will spring upwardly on the opposite side of the cam and the clutch wheel will then be held in engagement with the pinion 9 by the olfcenter device o. The operation of the hand crank in the clockwise direction will then carry the rack and pump rod to its lowest position, when the stop 42 will engage the arm 29 on the cam and cause the shifting of the clutch wheel as before described.

Then the pump is not in active use, it is desirable to lock it se that it cannot bev operated by unauthorized persons. For this purpose, l provide a device for centering the clutch wheel between the pinions 9 and 1Q and means for locking this device. The centering device comprises a shaft 43 which extends through the front of the casing and is provided with a handle 44, and on the lll() inner-end of this shaft is arranged a fiat -head 45, which lies within the space between the flanges. 35 of the clutch wheel and is adapted to extend practically from one flange to the other, as shown in Fig. 8, when the handle Mis in one position. When the handle is turned 90 from the position shown :in Fig. 8, the head will lie parallel with the flanges, as shown in Fig. 3, and midway between them so as to permit the wheel to be shifted. To lock the clutch wheel, the head isturned by means of the handle to the position shown in Fig. 8,'and in this position the clutch wheel cannot be moved into engagement with either of the adjacent pinions. The shaft 43 may be locked with the head in this last mentioned position by means of the key-controlled lock 46, having a bolt 47, adapted to engage a recess in a lug 48, which is secured to the shaft 43.

' member, of means for shifting said member comprising a stop movable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a tripping lever mounted independently of the tappet lever and adapted to be Yengaged and rockedrby the tappet lever, a

spring actuated off-center device movable by the trippinglever, and an arm movable by said device and engaging the clutch member.

2. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaftr and ,reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shift-ing said member i comprising a stop movable with the rack, a

tappet lever adapted to be rocked by said stop :during the upward movement of the vrack,ja trip-ping -lever mounted independently of the tappet lever and adapted to be engaged and rocked b v` the tappet lever,

.means for varying the extent of movement of the tripping lever, a spring actuated offcenter device movable by the tripping lever,

and an arm movable by said device and engaging the clutch member.

`8. -Iin a measuring pump, the combination withthe pump rod, a rack thereon, a drive vshaft and reversible gearing connecting the Vdrive shaft with the rack including a clutch 'memben of' means for shifting said member comprising a stop-inovable with the rack, a .tappet/lever adapted to be rocked by said stop rduring the upward movement of the rack, "a tripping lever mounted independent-ly of the tappet lever and adapted to be `-:rocked by the tappet lever,-an.adjustable stop on the tripping lever adapted to be engaged by the tappet lever, a spring actuated off-center device movable by the tripping lever, and an arm movable b v said device and engaging the clutch member.

el. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, a plurality of stops movable with the rack, a tappet lever. manually operable means for setting the tappet lever in the path of movement of any one of said stops. a tripping lever adapted to be rocked by the tappet lever. and means controlled by the movement of the tripping lever for lshifting the clutch member.

In a measuring pump, the combination with the pump rod, a rack thereon. a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of me'ans for shifting said member comprising a plurality of stops movable with the rack, a tappet lever. manually operable means for setting the tappet lever in the path of movement of any one of said stops, a tripping lever having a plurality of adjustable stops adapted to be separately engaged by the tappet lever in its different set positions, and means controlled by the tripping lever for shifting the clutch member.

6. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shifting said member comprising a stop movable with the rack. a tappet lever 'adapted to be rocked by said stop during the upward movement of the rack, a tripping lever adapted to be rocked by the tappet lever. a spring actuated oilcenter device movable by the tripping lever. and an arm having a lost-motion connection with said device and movable by said device. said arm engaging the clutch member.

7. In a measuring pump, the combination with the pump rod, a rack thereon. a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shifting said member comprising a stop mo vable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a tripping lever adapted to be rocked by the tappet lever. a spring actuated olf-center device movable by the tripping lever. an arm having a lost-motion connection with said device and movable by said device, said arm engaging the clutch member, and a spring-actuated off-center device engaging said arm.

8. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible `gearing connecting the drive shaft with the rack including a clutch member', of means for shifting said member comprising a stop movable with the rack, a tappet lever adapted to be rocked by said Stop during the upward movement of the rack, a manually operable shaft, an arm secured thereon for moving the clutch member, a spring-actuated olf-center device for moving said latter shaft comprising a part having a lost-motion connection with the Same, Vand means operated by the tappet lever for moving said part against the action of its spring.

9. In a measuring pump, the combin'ation with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shifting said member comprising 'a stop movable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a manually operable shaft, 'an arm secured thereon for moving the clutch memher, a spring-actuated off-center device for moving said latter shaft comprising a part having a lost-motion connection with the same, and a tripping lever interposed between said tappet lever and said part for moving said part against the action of its spring.

l0. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shifting said member comprising a stop movable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a manually operable shaft, an arm thereon engaging the clutch member, a heart cam on the latter shaft and having a lostmotion connection therewith, a springpressed plungerI engaging the cam, and means movable by the tappet lever for rocking said cam.

ll. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member', of means for shifting said member comprising a stop movable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a manually operable shaft, an arm thereon engaging the clutch member, a heart cam on the latter sh'aft and having a lost-motion connection therewith, said cam having a laterally projecting arm, a tripping lever movable by the tappet lever and having an 'arm adapted to engage the arm on the cam to rock the latter when the rack moves upwardly.

l2. In a measuring pump, the combination with the pump rod, a r'ack thereon, a drive shaft and reversible gearing connecting the drive shaft with the rack including a clutch member, of means for shifting said member comprising a stop movable with the rack, a tappet lever adapted to be rocked by said stop during the upward movement of the rack, a manually operable shaft, an arm thereon engaging the clutch member, 'a heart cam on the latter shaft and having a lost-motion connection therewith, a tripping lever movable by the tappet lever and adapted to rock the cam in one direction when the rack moves upwardly, and a stop, movable with the rack, adapted to rock said cam in the opposite direction at the end of the lowering movement of the rack.

18. In a measuring pump, the combination with the pump rod, a rack thereon, a drive sh'aft and reversible gearing connecting the drive. shaft with the rack and including a clutch wheel slidably mounted on the shaft and having spaced iianges, of means for locking said wheel in neutral position comprising 'a part adapted to engage said flanges.

14. In a measuring pump, the combination with the pump rod, a rack thereon, a drive shaft and reversible gearing connecting` the drive shaft with the rack and including a clutch wheel slidably mounted on the shaft and having spaced anges, of means for locking said wheel in neutral position comprising 'a :rotatably mounted shaft having a flat head ext-ending into the space between said flanges and a lock for locking said shaft 'against rotation.

In testimony whereof I hereunto affix my signature.

` ANTON JONCHA.