US1124295A - Pumping machinery. - Google Patents

Description

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911.

1,124,295. I Patented Jail. 12, 1915.

6 SHEETS-SHEET 1.

Fig.1-

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION P111111)sEP1'.3o. 1911.

6 SHEETS-SHEET 2.

Patented Jan. 12, 1915.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30. 1911.

1 1 24,295.. Patented Jan. 12, 1915.

6 SHEETS-SHEET 3.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION rum: SEPT. 30. 1911.

1 $24,295. Patented Jan. 12, 1915.

6 SHEETS-SHEET 4.

I I I I I L. II l I M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911.

Patented Jan. 12, 1915.

6 SHEETS-SHEET 5.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911. 1 1 24 295, Patented Jan. 12, 1915.

, 6 SHEETB-SHEET 6.

QW i Yt llhiliilPE STATEb PATENT @FldllCE MATTHEW T. CHAPMAN, OF AURORA, ILLINOIS, ASSIGNCR TO THE AMERICAN WELL WORKS, OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS.

PUMPING. MACHINERY.

ie ages.

To all whom it may concern Be it known that I,-MA'1"rHnw T. CHAP-' MAN, a citizen of the United States," residing at Aurora, injthe countyof 'Kane and State of lllinois,"have invented certain new and useful Improvements in Pumping Machinery, of which the iollowing is a specification, reference 1bei It is one of the objects of my invention to provide a new and improvedjme'ans for causing the upward stroke of each plunger to occupy a greater proportion of the time than does the downward-stroke. In this way, for an interval just afterone of the plungers has reached its lowermost point, both plungers are moving upward. Thus one plunger begins to move upward with the stream ofwater before the end of the upward stroke of the other plunger, with the result that the Water is forced upward in. a continuous stream without being permitted to come. to rest. This obviates the necessity for giving the stream of water a fresh start at the beginning of the stroke of each plunger, and thus materially lessens the strain upon thepumping machinery.

"Another object of'my invention 18 to provide a new and improved arrangement of parts by which the power is-apphed directly in line with the plunger-rods so as to avoid any side draft which would jcramp the mechanism and make necessary theuse of an undue amount of energy for raising a given quantity of water. 7

Another object is the improvement of pumping machinery in sundrydetails hereinafter pointed out. The means by which I have accomplished these objects are" illustrated in'the drawings and hereinafter specifically described. T hat which lbelieve' to be new is set forth in the claims.

In the drawin s:-Figure 1 is a side view of my improve pumping machinery; Flg.

Specification of Letters Patent.

Patented Jan. t2, 1915.

'lpplication flied September 30, 1911. Serial No. 652,052.

2 is a front view thereof; Fig. 3 is a rear view thereof; Fig. 4-is a top View; Fig. 5 is a side view of the driving crank and the levers operated thereby in a different phase of the operation from that shown in the other drawings, parts of the machine being cut away; Fig. 6 is a view, partly in section, of the crank shaft and driving gear;

.Fi g. 7 is a section taken on line 77 of F ig;

6; Fig. 8 is-a view, partly in section, showing a modified form of crank shaft and gear; and Fig. 9 is a section on line 9-9 of Fi 8. c

l leferring now to Fi gs. 1 to 7 of the draw I ings, in whichcorresponding parts are in dicated by like reference characters,10 in dicates a base upon which are mounted standards 11-12. of the frame. 13 indicates a bar mounted iii-the standards 11--12, j'ou'rnaled upon which, by means of hubs 14;15,

are bellcrank levers 161'7. As shown in Fig. 3 the hubs 14t15 are secured together by bolts 18 so that the levers lfi-l7 swing together upon the bar 13. 19 indicates another bar mounted in the standards 11--12,

journaled upon which, by means of a hub so 20, is a bellcrank lever 21. The bars 13-49 are rigidly connected to the standards 11-42, serving to brace them relative to each other. Each of the levers l617 is provided along its rear edge w th'a slideas box 22, of any suitable construction, and the lever 21 is provided with a similar slidebox 23. In each of said slide-boxes 2223 is mounted a slide-block 24 mounted upon the-w'rist-portion 25 of a crank shaft 26 ably secured to one of the arms of said crank shaft, located concentrically relative to the axis of rotation of the shaft. 30 indicates a shaft, journaled in the standards 11-1'2, mounted on which is a pinion 31 meshing with the gear 29. 32 indicates a driving pulley keyed or otherwise suitably secured upon the shaft 30. c

I As best shown in Fig. 4, the forward end of the lever 21 is forked, in each of the arms 33-3t thereof there being secured a pin 3637 indicate links pivotally connected to the arms 3334 by means of said pins 35, the lower ends of said links being pivotally secured to a cross-head 38. As best shown in Fig. 2, the cross-head 38 is slidably mounted upon upright guide-rods 39 40 which are ,mounted at their lower ends in a plate 41 suitably secured to the base 10. -12-l3 indicate brace-bars extending from the upper ends of the standards 11l2 to the upper ends of the guide-rods 39-40. -11 indicates a brace-bar connecting the upper ends of the guide-rods 39-40.

As best shown in Fig. 2 the forward ends of the levers 16-17 have pivotally mounted thereon, by means of pins 45-16, links 4718 which are pivotaliy connected at their lower ends to a cross-head 49 slidably' mounted upon said guide-rods 39-40. As shown in said Fig. 2, the cross-head38 is connected at its, central point, between the links 3637,' with a plunger-rod 50, and the crosshead 49 is connected between the links {17-48 with the plunger-rod 51, the said plunger-rod 51 being hollow, with the plunger-rod working inside thereof.

Referring now more particularly to Figs. 6 and 7 which show the crank shaft and driving gear, it will be seen that the concentrically positioned bearing portions 27-128 and the Wrist-portion 25 are formed integrally with the arms 52-53, tothe latter of which the gear 29 is secured by bolts 54. A stud 55 extends from the outer face of thecrank arm 53, passing through a suitable opening in one of the spokes of the gear 29, a nut 56 being screw-threaded thereon. 57 indicates the upper end of the well-tube connecting-head, in which is mounted a stuliing box 58 carried by a plate 58 59 indicates an oil-cup mounted on the stuiiing-box 58 surrounding the outer plunger-rod 51. 60 indicates a large pipe leadmg from one side of the well-tube connecting-head 57 for delivering the water as desired.

With' the driving pulley 82 rotating in the direction indicated by the arrow in Figs. 1

and 2, the pinion 31 and thegear 29 will be driven as indicated by the arrows.thereon in Fig. 5. As shown in said Fig. 5 the line A-B joining the center of the wrist-portion 25 and'the center of the bar 19 is at right angles to the line A--() joining the center of said wrist-portion 25 to the axis of rotation of the crank shaft, and consequently the lever 21 is at its highest point. When the crank has reached the position indicated by the line O() which is perpendicularto the line B-C, the lever 21 will have reached its lowest point. Likewise when the crank reaches the position indicated by the line U-D which is at right angles to the line D- Epassing throu h the center of the bar 13, the lever 16 will ave reached its highest point. When thereafter the crank reaches the position indicated by the line UF which is perpendicular to the line FE,

' between the standards.

the lever 16 will have reached its lowest point. In the construction ;shown, each of the angles A-O*C and FOD is approximately 125". Itis therefore seen that each of the levers 16--17 and 21 is moving upward 235/360 of the time and moving downward only 125/360 of the time. While the crank is moving fromthe position indicated by the line O- F to that indicated by the lineO-A, the' levers 16-17 and 21- are all moving upward, as is also the case when the crank moves fromjthe position indicated by the line O-'C to the position indicated by the line 0-1). Inasmuch as one plunger-rod is started upward before the other plunger-rod has reached its highest point, it will be seen that the stream of water is not permitted to come to rest at any time during the operation of the pump, one plunger beginning to act before the other plunger ceases its operative stroke. This'expeldient serves to lessen very materially the strain upon the pumping mechanism as a Whole ascompared with that upon a pump in which the stream of'water comes to a rest at the end of each operative stroke.

By the provision of the twolevers 16-17 acting together upon the plunger-rod 51, the

action is direct without any side thrust or side strain upon the mechanism.- By the provision of the vertical guides and crossheads by which the plunger-rods are connected to the levers 16-17 and 21, the effective pull upon the plunger-rods is in a direct vertical line.

In Figs. 8 and 9, which show a modification of the shaft and gear, the corresponding parts are indicated by the same reference numerals as in Figs. 6 and 7, but with the addition of an exponent a. In thev construction here shown the arm 61 is made broader than the arm 56 and is secured at both ends by bolts 62 to the gear 29. The concentrically-positioned hearing at that end of the shaft to which the gear 29 is attached is made separate from the arm 61 in the form of an axle 63. By this con.- struction the assembling of the parts is more easily accomplished.

Referring to Figs. 1 to 5, 64 indicates bolts which pass through the standards 1112. 65 indicates spacing blocks in the form of washers placed upon the. bolts 64 The tightening of the bolts draws said standards and spacingblocks to ether for holding the frame rigid.

What claim as my invention and desire to secure by Letters Patent is,-

1. In a pump, the combination of two levers adapted to rock about a common axis, a plunger-rod, means for connecting said plunger-rod between the ends of said levers, a straight pin having. a sliding connection with both of said levers, and means for moving said pin about an axis parallel with the lgh w s axis upon which said levers are mounted for actuating said levers'in unison to reciprocate said plunger-rod.

2. In a pump, the combination of two levers adapted to rock about a common axis, a plunger-rod, means for connectin said plunger-rod between the ends of'said levers, and a crank having a straight wrist which operates upon said levers for actuating them in unison to reciprocate said plunger-rod.

3. In a pump, the combination of two bell-crank 'levers adapted to rock about a common axis, a: plunger-rod, means for connecting said plunger-rod between one arm of one ofsaid levers and the corresponding arm of the-other lever, a straight pin having asIidingeonnection with the other arms oi said levers, and means for revolving 881d pin about anaxis parallel with the axis upon whichfsaidbell-crank levers are mounted or actuating said levers in unison to recipsocate said: plunger-rod.

4.. In a pump, the combination of two bellcrank levers adapted to rock about a common axis, a plunger-rod,- means for connecting said lunger-rod between one arm of one of sai levers and the corresponding arm of the other lever, and a crank having a straight wrist which operates upon the other arms of said two levers-for actuating said levers in unison to reciprocate said plunger-rod.

5. in a pump,the combination of two bell the free arm of-said lever with one of said crank'levers adapted to rock about a common axis, one arm of one of said levers and the corresponding arm of the other lever being provided with slide-boxes, a crank having a straight wrist which operates in said slide-boxes to reciprocate the other arms of said levers in unison up and down, a plungerrod, and means for connecting said plunger-rod between said last-named arms of said levers.

6. in a pump, the combination of a frame, a plurality of bellcrank levers mounted thereon on parallel axes one above the other with one arm of each lever pointing in its intermediate position toward the axis upon which the other lever is mounted, means operating upon both of said arms for actuating said levers to swing the other arms in opposite directions, and a plurality of plunger rods connected to said last-named arms respectively.

'8'. In a pump, the combination, of a frame, a plurality of bellcrank levers mounted thereon on parallel axes one above the other with one arm of each lever pointin in its intermediate position toward the axis upon which the other lever is mounted, a crank operating upon both of said arms for actuating said levers to swing the other arms'in opposite directions, and a plurality of plunger rods connected to said last-named arms respectively.

8.. in apump, the combination of a frame, a plurality of bellcrenk levers mounted thereon on parallel axes one above the other 7 with one arm of each lever pointing in its hasa sliding connection with said lever for reciprocating the lever, two plunger-rods located in the plane of said lever, and means for operatively connecting said lever with one of said plunger-rods, of two oppositelydisposed levers adapted to be reci-procated in unison by said straight crank wrist, one of said last-named levers being on either .sideofsaid first-named lever, and means for operatively connecting the free ends of said last-named levers with the other of said plunger-rods.

10. In a pump, the combination with a the crank said lever is reciprocated, two

plunger-rods located in the plane of said lever, and means for operatively connecting plunger-rods, of two oppositely-disposed bellcrank levers adapted to be reciprocated in unison by said straight crank wrist, one of said levers being on either side of said first-named lever, and means for operatively connecting the free arms of said last-named lovers with the other of said plunger-rods.

11. In a pump, the comblnation with a bellcrank lever, a crank having a straight wrist which has a. sliding connection wlth one arm of said lever whereby by rotation of the crank said lever is reciprocated, two plunger-rods located in the plane of said lever, a vertical fguide, a slide-block connected to one 0 said plunger-rods and adapted to be reciprocated up and down on said guide, and means for operatively con necting-the free arm of said lever with said slide-block, of two oppositely-disposed bellcrank levers adapted to be reciprocated in unison by said straight crank wrist, one of said levers being on either side of said firstmentioned lever, a second slide-block connected to'the other of said plunger-rods and adapted to be reciprocated up and down on one arm of said lever whereby by the rotation of thecrank said lever is reciprocated,

two plunger-rods located in the plane of said lever, two vertical guide-rods on opposite sides of said plunger-rods, two cross-heads adapted to slide up and down on said guiderods, each of said cross-heads being connected toone of said plunger-rods, and links connecting the free arm of said lever with one of said cross-heads, of two oppositelydisposed bellcrank levers adapted to be reciprocated in unison by said straight crank wrist, one of said levers being on either side of said first-named lever, and links connecting the free arms of said last-named levers with the other of said two cross-heads.

13. In a pump, the combination of two levers mounted on a fixed axis, means connecting said two levers so that they swing .in unison, a third lever positioned between said first-named two levers and mounted on a fixed axis parallel with that upon which said first-named levers are pivoted, two plungerrods located in the plane of the central lever,

' means operatively connecting one of said plunger-rods to'said central lever, means operatively connecting the other of said lunger-rods to said two levers, and a crank aving a single straight wrist adapted to actuate all of said levers to reciprocate the plunger-rods in opposite directions.

14. In a pump, the combination of three levers each provided with a: slide-box, a crank the wrist of which works in said slideboxes for reciprocating said levers, the outside levers being swung in unison, and the intermediate lever being swung for a part of the time in the same direction with the outside levers but fora greater part of the time in the opposite direction, and plunger-rods one operatively connected to said two outside levers and the other operatively connected to said intermediate lever.

15. In a pump, the combination of three levers each provided with a slide-box, a crank the wrist of which works insaid slideboxes for reciprocating said levers,the outside levers being swung in unison and the intermediate lever bemgswungfor a art of the time in the same direction with tie outside levers but for a greaterpart of the time in the opposite direction, two plunger-rods, connections between said two outside levers and one of said plunger-rods, connections between said intermediate lever and the other of said plunger-rods, and means adapted to cause said connections tomove in'a vertical line whereby there is noside'str'ain upon the plunger-rods as said levers are reciprocated. 16; In a pump, the combination of two levers, means connecting said two levers so that they swing in 'unison, a third lever positioned between said first-named levers, each of said leversbeing provided with a slidebox, a crank adapted to operate in said three vers, means connecting said two levers so that they swing in unison, a third lever positioned between said first-named two levers, each of said levers being provided with a slide-box, a crank located between the two axes upon which said levers are pivoted adapted to operate in said three slide-boxes to reciprocate said levers, two plunger-rods located in the plane ofthe central lever, means operatively connecting one of said plunger-rods to said central lever, and means operatively connecting the other of said plunger-rods to the said two levers.

- 18. In a pump, the combination of two levers, means connecting said two levers so that they swing in unison, a third lever positioned between said first-named two levers, each of said levers being provided with a slide-box the central longitudinal line of which passes through the axis upon which the lever swings, a crank journaled midway between said two axes adapted to operate in said three slide-boxes to reciprocate said levers, two plunger-rods located in the plane of the central lever, means operatively con= necting one of said plunger-rods to said central lever, and means operatively connecting the other of said plunger-rods to said first-mentioned two levers.

19. In a pump, the combination of two levers, means connecting said two levers so that they swing in unison, a third lever positioned between said first-named two levers, two plunger-rods located in the plane of the central lever, means operatively connecting one of said plunger-rods to said central lever, means operatively connecting the other of said plunger-rods to the said first-mentioned'two levers, and a single crank operatively connected to said levers adapted to swing them up and-down.

20. In a pump, the combination of two levers mounted on a fixed axis, means connecting said two levers so that they swing in unison, a third lever postioned between said first-named two levers and mounted on a fixed axis parallel to that upon which said first-named levers are pivoted, asingle crank journaled'midway between said two axes operatively connected to said levers adapted to 7 two standards rising therefrom, two transverse bars connected to said standards adapted tovhold the samerigid relative to each other, two levers mounted on one of said transverse bars, a third lever mounted on the other of said transverse bars adapted to swing between'said first-named two. levers, two plunger-rods, means for connecting one of said plunger-rods to said two levers mounted on one of said transverse bars, and means for connectingthe other of said two plunger-rodsto the intermediate lever inounted on the other of said transverse ars.

22. In a pump, the combination of three levers each provided with a slide-box, a crank the wrist of which works in said slideboxes for swinging said levers in opposite directions, and plunger-rods operatively connected to said levers.

23. In a pump, the combination of three levers, operated by sliding blocks driven by a crank, one of said levers being operated between the other two levers for moving pump rods in opposite directions.

24. In a pump, the combination of three levers operated by sliding blocks driven by a crank, one of said levers being operated between the other two levers for moving pump rods inopposite directions in part of the revolution of. the crank and in the same direction in another partof the revolution of the crank.

of. the crank, and means for holding, the

pump rods in vertical alinement.

26. In a pump, the combination of a base, two standards rising therefrom, two transverse bars connected to said standards adapted to hold the same rigid relative to each other, two levers mounted on one of said transverse bars, a third lever mounted on the other of said transverse bars adapted' to swing between said first-mentioned two levers, each of said levers being provided with a slide-box, a single crank wrist operating in the slide-box of said three lewere adapted to reciprocate said levers, two plunger-rods located in the plane of said intermediate lever, means for connecting one of said plunger-rods to the two levers mounted on pm of said transverse bars, and means for connecting the other of said plunger-rods to the intermediate lever mounted on the other of said transverse bars.

W; A. FURNNER, 'W. H. DE Busn.

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