US1027139A - Pump. - Google Patents

Description

' J. MOGEO RGE. PUMP.

APPLICATION FILED MAR. 28, 1906.

Patented May 21, 1912.

2 SHEETS-:SHEETJ.

n z 4% INVENTOR i By J. MOGEORGB;

BUMP. APPLICATION FILED 1411.28, 1906.

Patented May21,l912.

2 sums-sum z.

17-6 WITNESSES;

Tdall'whom t ttmay 6mm. v

, 'JOHN' 'itdeaoaen, or CLEVE AND, 031;

Polar.

.Be it known that I,JoHNfMcGnoRGE,.a citizen of the United States, residing. at

Cleveland, in the county ofCuyahoga and State of Ohio, have invented a certain new I I and; useful Improvement in Pumps, of which the followin i is a full, clear, and "exactjdescriptiomre erence being had to the enceto a pump thatisso constructed that accompanying drawings..-

n This, invention relates in general to tanable speed devices, and has particular referthe throw of the pistonthereinjmay be varied-at will, and thecourse of the propelling fluid through the pump will contain no sharp angles whereby the efiiciency would'be V reduced; The pump is adapted tobe combinedwith amotor which is then driven by thelfiuidfurnished" by means of said pump.

,[The object of the invention is to furnish meansfor driving the motor atvariable speeds, and to so construct theparts that the device will be under perfect controhand, at the same time be simpleinconstruction and "efiicient and positive in operation.

I the draw ng forming a? partibfi this" application, Figureil is an end elevation of thefpump showlng the pipes for. conducting the propelling fluid to and fromthe motor Fig. 2 is an elevationof the right hand end of, the parts shown in Fig. 3,:the casing at l saidendfbeing removed, and the, eccentric "shaft being in section. (Fig. 3 is va -longitudinal sectional 'view takenf on the line 37-3 of Fig. land looking to the right: Fig. 4

. mshfo'ws transverseisection takenon the line 4. 401? Fig. 3 and looking toward the left.

Fig.5 is a view ofa portion oftheshifting lever-l shown inFig. 1, said. view being taken onthe line 5 5 of Fig.6. f Fig. 6 is a view taken on the line 6- .6 of 5. Fig. 7 is-a perspeetive view vof the shaft for operating the pistons. Figs. 8, 9, 1O and llare sect onal views showing theivarious positions of the. iston at diflerent periods inthe rota-' .tionflo tlie cylinder. v n {Referring now to thefdrawings, in which like reference characters designate like parts throughoutthe several views, 1 represents thecasing of the pump in which is jour:

.n aled themain' drive shaft 2, which shaft is proif dfid with a pulley 3, or any other suittheshaft2'within the casing is a pinion 4,; V( Fig. 2), which meshes with agear- 5 that is a ,keyed to one end of the rotating cylinderfi.

ableform of driving mechanism. Keyed to Specification of Letters Patent. V a i anon filed man as, 1906. ss miaoama This cylinder is mounted for rotation within theqcasing 1, said casingbeing-bored toreceive-the cylinder which snugly fits the bore, except at diametrically, oppositepointsi where the casing is provider-l with ports: 7

and 8. These portsmay be1: alternately inlet or outlet ports, depending uponthe adjust-1 ment of the motor, as will be 'hereinafter'described.

conveying propelling fluid. Extending axially through the cylinder 6 is a. circular opening 11, (Fig. 2), and through said open ing extends the shaft 12 for operating the pump pistons 13' and 14. This-shaft is shown in perspective ;v-iew. in Fig. 7, from.

which view it will be seen that it is provided with squared portions 15 and, 16, said squared portions fitting into rectangular openings 17 in the pistons. The shaft 12 has bearings at itsends in hanging links 18, said links being suspended from eccentrics:

19 onv an eccentric rod or shaft. 20 that is mounted inthe. casing abovethe shaft 12 and has its bearings in the end pieces of the frame 1. By turning the shaft 20into dif-. ferent positions, the links 18 are raised and lowered, said movement also carrying the shaft-l2 up. and down in the rectangular openings 17 of thepistons: When the shaft. 20 is turned. so as to bringthe axis of the shaft 12 into coincidence with the axis of the Patented Maj 21,1912.

. 'Conimunicating withthe ports 7 and 8 re spectively, are pipes 9 and 10, saidpipesex tending from thepump to the motor,:.and1

cylinder, the rotation of. the cylinder will produce no lateral movement of the pistons 13 and 14. When, however, the shaft 20 is turned so as to lifttthe shaft 12 above the axial center of the c linder, and the latter is then rotated, the pistons will be caused to moveuback and forth, through the cylinder, the extent of suchmovement being dependent upon the distance between the axial .cen-,.. 'ters of theshaft12 and the cylinder. Figs. .8 to 11,inc1usive,- show the shaft- 12 raised. above the axisof the cylinder, and the various positionsthe; iston assumes during a partial rotation o the cylinder. ,Thus in s i Fig. 8, the cylinder is turned so that the rectangular opening 17 is vertical. "As the squared portion of the shaft 12 fits the side v Walls of the opening, it is evident that the piston 14' will occupy a central position within the cylinder. Fig. 10 shows the cylinder in such position that therectangular openinglies in a horizontal position, so that the squared portion of the shaft 12 lifts the piston 13 vertically, said piston then being in its maximum outer position. Figs. 0 and 11 show the openings 17 in midway positions.

For ease in construction, and in order to secure a more uniform pumping action, I prefer to make the pistons cylindrical in cross section, as appears from the piston 14 in Fig. 3, and to arrange said pistons at angles one with the other. As shown in Fig. 3, the pistons 13 and 14 are arranged 90 apart; and if a greater number of pistons were used in the same cylinder, they should be so arranged as to receive and discharge the propelling fluid at regular intervals.

The pistons lit the bores in the cylinder made therefor snugly so that there can be no' leakage of the propelling fluid from one side of the cylinder to the other, and the same may be said of the fit of the cylinder 6 within the bore in the casing. The propelling fluid in the port 7 can pass into the port 8, therefore only as a result of the pumping action of the pistons. When the piston is in its said position, as shown in Figs. 4 and 8, there are pockets (1 and Z) formed by the ends of the piston and the adjacent parts of the cylinder, said pockets then being of equal capacities. As the cylinder rotates to the right, the pocket a gradually closes, thereby pushing the propelling fluid it formerly contained into the port 8, and thence into the pipe 10 which conveys the fluid to the motor. As the pocket acloses, the pocket 6 opens; and when the cylinder reaches the position shown in Fig. 10, the pocket a has completely closed or has ceased momentar ly to exist, while the pockethas reached 1ts maximum capacity, both pockets atthat instant being out of communicationwith the ports 7 and 8. As the cylinder continues to rotate, the pocket 7) opens into the port 8, and the piston begins its movement in a direction to close said pocket, thus forcing the liquid therein into the port 8. Simultaneously with the closure of the pocket 6 comes the opening of the pocket a, which pocket is then in communication with the port 7. From this description, it will be understood that these pockets receive their propelling fluid from one port, and discharge the same into the other port. The propelling fluid is thus forced into'the port 8 and pipe 10, an impulse being given to the liquid in such port and pipe with each reciprocation of the piston. If but a single or a few pistons be employed in the same cylinder, the flow of the fluid through the port 8 will pulsate; but if a suflicient number of pistons be employed and they are arranged.

at the proper relative angles, the flow willbecome practically continuous.

The above description applies when the shaft 12 is lifted above the axial center of the cylinder, and when the cylinder is turning to the right, as seen in Figs. 8 to 11, inclusive. If, hOWGXQI', the shaft were lowered below the axial center of the cylinder and the cylinder continued to rotate in the same direction, the direction of motion of the fluid would be reversed; for, as will be seen from Fig. '10, the pocket 6 would then be closed, while the pocket a at the opposite end of the piston would be opened and full of the fluid which would then be ready to be discharged into port 7 and through the-tube 9. It will thus be apparent that bysimply changing the position of the shaft 12, the pump will not operate at all, or will pump with a variable length of stroke, and in such direction as is desired.

The shaft 20 isextended at the end of the casing opposite the drive pulley 8, and it is rocked to vary the eccentricity of the sha ft 12 with respect to the cylinder by means of a hand lever 21, said lever being keyed or otherwise suitably connected with the said shaft 20. The lever is held in any adjusted position by means of a worm 22, see Fig. 6, that meshes with a stationary worm gear 23, said worm gear'being secured to the casing of the motor by means of bolts 24. The worm 22 is mounted in a frame consisting of side pieces 25 and 26, said frame being carried by the lever 21. The pieces 25 and 26 of the frame are jointed by cross rods 27 and 28, the rod 27 forming a pivot for the frame upon which itis adapted to rock upon the lever; The rod 28 normally rests against stop projections 29 and 30 on the lever, the latter projection being in the form of a bracket that extends from the side of the lever and projects into proper position to support the rod, as seen in Fig. 5. This rod is normally held in engagement with the projections 29 and 80 by means of a coiled spring 31 that engages a hook on one end of the frame piece 25, the other end of said spring hooking over a projection 32 on the arm 21. The frame piece 26 is a duplicate of the frame piece 25, except for the hook on the latter, which is not present on part 26. The rod 27 isjournaled in the hand-lever 21 and in the bracket projection 30, the latter extending about in a right-angled formation and being of suflicient length to serve as such hearing. The worm 22 is journaled in the cross rods 27 and 28 and it carries on the end opposite the pivot'rod 27 a hand wheel 33 by which the worm may be turned so as to vary the adjustment of the lever. The worm may be thrown entirely out of mesh with the wheel 23 by means of a grip lever 34 that is pivoted at 35 to the hand lever 21, said grip lever bein connected through a link 36 with the side piece When the grip lever is drawn toward the hand lever, the frame is turned about 'the rod 27 and the worm is entirely disengaged from the wheel, so that the hand lever may be' turned to any desired extent. By simply releasing thegrip lever, the worm. 1s drawn into engagement with the stationary worm wheel, which will holdv the lever, in the po- 'sitioninto which it has been moved If,

however, the adjustment is not exactly as desired, a simple rotationof the hand wheel 33 will rotate the worm and thus move the hand lever about the worm wheel to the desired position. s I Any kind, f self starting, positive acting,

reversible motor can be used with this pump.

I prefer to use a piston motor having more than two cylinders acting at .different an- 'gles .upon the same crank shaft, since withapiston motor there is no sl1pbetween the impelling fluid and the motor. parts which would diminish the efficiency, of the ner will run equally well in either direction and hence maybe reversed by merely changing the direction of fluid supply thereto-- With any sucharrang'ement it will be clear that the rapidity of rotation of the shaft of the motor depends upon the length of the stroke given v to the pistons in the pump, By simply moving the hand lever 21, the rapidity of rotation of the motor can be varied at will, within limits, or saidimotor can be'reversed at will. In this way, the power which'can be furnishedfor the speed attained by themotor can be easily controlled. As the degree by which the power is multiplied orthe speed of the motor der, whereby the piston may transfer fluid dependsuponthe position of the hand lever 21, the amount of such multiplication or the speed of the drivenshaft may be indicated by an index pointer 58 on the'hand lever,

said pointer moving over an index scale 59 x on the worm gear.

While I have necessarily:illustrated and described specific mechanism for carrying out "the principles of. my invention, I desire it to be understoodthat the following claims are not to. be limited to such specific mechanism any further than is rendered necessary by the terms thereinemployed or by the priorstate of the art.

Having thus describedmy invention, I

, claim:

*1. In a device of the character described,

a casing," an inlet and an outlet port in said casing, a cylinder mounted within the casing between said ports,means,for turning said I cylinder, a piston mounted in said cylinder, shaft passing through said cylinder and having abearing portion upon which the piston is adapted to reciprocate, and means for varying the position oft-he shaft with respect to the axis of the cyllnder "whereby the extent of 'the throw of the piston into the cylinder is regulated.

2; In a device of the character described,

a 'casing,]an inlet and an outlet port in said casing, a cylinder mounted within the casing between said ports, means for turning said cylinder, a plurality of pistons mounted in said/cylinder, a shaft passing through said cylinderiand having a bearing portion upon WhlCh the pistons are adapted to reciprocate, and means for varyingthe position of the shaft with respect to the axis ofthe cylinder,

whereby the throw of the pistonsin the cylinder is regulated, said'pistons being soar-4 ranged as to discharge successively and at regular intervals. I

3. In a-device of the character described, a casing, aninlet and an outlet port within the casing, a cylinder mounted within the casing-between the ports, means for rotat ing. the cylinder, a piston mounted to rotate with the cylinder and adapted to reciprocate therein, a shaft passing through the cylinder and the piston, said piston having a bearing upon the shaft, and means for moving the said shaft bodily to vary. the

position of the shaft with respect to the pis ton, whereby the throw of the latter is regulated; l

4. In a device of the character described, a casing, a pair of ports in said'casingga cylinder mounted to rotate between said ports, a piston mounted to reciprocate in said cylinder, a shaft passing through said cylinder and engagingthe piston whereby the.

latter is caused to reciprocate as the cylinder rotates, and means for moving said shaft bodily so that it may occupydifi'erent positions relative to the axial line of said cy1in from oneport to the'other in variable quantities or may reverse the direction of the motion of saldfiuid.

5. In a device of the character described, a casing, a pair of ports in saidcasing, a. cylinder mounted to rotate between said ports, a piston mounted to reciprocate in said cylinder, a shaft passing through said cylinder and engaging the piston. whereby the latteris caused to reciprocate as the cylinder rotates, a rod having eccentrics, means for rotating said rod, and means connecting said rod with the shaft for moving said shaft sothat it may occupy different positions relative to the axial line of said cylinder, whereby the piston may transfer fluid from one port to the other in variable quantities or may reverse the direction of the motion of said fluid. f 6; In a device of the character described, a casing, a pair of ports in said casing, a'cylinder mounted to rotate between said ports, a plurality of pistons mounted to recipro cate in said cylinder, said pistons being shorter than the diameter of the cylinder, whereby pockets are formed at the ends of the pistons, a shaft passing through said cylinder. and engaging the pistons whereby the latter are caused to reciprocate as the cylinder rot-ates, and means for moving sa1 d shaft so that it may occupy different positions relative to the axial line of said cylinder, whereby the pockets at the ends of the pistons may receive fluid from one port and transfer it to the other port in variable quantities, or whereby the direction of the motion of said fluid may be reversed.

7. In a device of the character described, a casing, a pair of ports in said casing, a cylinder rotating between said ports, a shaft passing through the cylinder, a piston mounted in the cylinder, said piston having an elongated opening through which the shaft passes, a squared POIftlOIl on said shaft engaging with the elongated opening in the piston, and means whereby the shaft may be moved to opposite sides of the central axis of the cylinder, whereby as the cylinder rotates, the piston will be reciprocated a .variable distance on the squared portion of the shaft or its direction of motion reversed.

8. In adevice of the character described, a casing, a pair of ports in said casing, a cylinder rotating between said ports, a shaft passing through the cylinder, a piston mounted in the cylinder, said piston having an elongated opening through which the shaft passes, a squared portion onsaid shaft engaging with the elongated opening in the piston, a rod having eccentrics, means for turning said rod, and connections between said rod and shaft, whereby the shaft may be moved to opposite sides of the central axis of the cylinder, so that as the cylinder rotates, the piston will be reciprocated a variable distance or its direction of motion reversed.

9. In a device of the character described, a casing, a pair of ports in said casing, a member mounted to rotate between said ports, a piston reciprocated by said member, said piston having an elongated opening. a' shaft passing through the member and through the opening in the piston, a squared portion upon said shaft upon which the piston is adapted to,reciprocate, a rod havmg eccentrics, connections between said rod and the shaft, a lever for turning said rod to vary the position of the shaft with respect to the axial line of the cylinder, whereby the strokes of the piston may be varied or its direction of action reversed, and means for holding the lever in any position to which it may be moved.

10. In a device of the character described, a casing, a pair of ports in said casing, a cylinder mounted to rotate between said ports, a piston reciprocating in saidcylin der, said piston having an elongated opening, a shaft passing through the cylinder and through the opening in the piston, 9.

squared portion upon said shaft upon which the piston is adapted to reciprocate as the cylinder rotates, a rod having eccentrics, links connecting said rod and the shaft, a lever for turning said rod to vary the position of the shaft with respect to the axial line of the cylinder, whereby the stroke of the piston may be varied or its direction of action reversed, and means for holding the lever in any position to which it may be moved.

11. In a device of the character described, a casing, a pair of ports in said casing, a cylinder mounted to rotate between said ports, a plurality of pistons reciprocating in said cylinder, said pistons having elongated openings, a shaft passing through the c'ylinder and through the openings in the piston, said shaft having squared port-ions upon which the pistons are adapted to reciprocate, said pistons being .so arranged as to discharge successively and at regular intervals, a rod having eccentrics, connections between said rod and the shaft, a lever for turning said rod to vary the posit-ion of the shaft with respect to the axial line of the cylinder, whereby the stroke of the piston may be varied or its direction of action reversed, and means for holding the lever in any position to which it may be moved.

12. In a device of the character described, a rod having eccentrics, a lever attached to said rod by means of which the latter may be turned, a worm wheel stationarily 'mounted and co-axial with said rod, a frame carried by said lever, a worm journaled in said frame, a spring engaging the lever and the frame and normally holding the worm in engagement with the worm wheel, a grip lever carried by the first mentioned lever, connections between the grip lever and the frame for throwing the worm out of engagement with the worm wheel so that the rod may be rotated, a rotating cylinder, a plurality of pistons mounted in and turning with said cylinder, a shaft passing through the cylinder and through said pistons, and connections between said shaft and said rod, whereby the said shaft may be moved toward or from the axis of the cylinder for varying the stroke of the pistons or for reversing the action of the pistons, the pistons being so arranged that they will discharge a fluid successively and at regular intervals.

13. In a device of the character described, a casing, a pair of ports in said casing, a cylinder mounted to' rotate between said ports, a piston carried by said cylinder and rotating therewith, said piston being provided with an elongated opening, a shaft passing through the cylinder and piston and having a squared portion engaging with the opening in the piston, a rod having eccentrics, connections between said rod and shaft whereby when the rod is turnedthe shaft in the frame on said lever and normally engaging the worm wheel-so as to hold the ote'd to said lever and, normally engagingv the'pistonor to reverse itsirection of action, a lever connected tothe rod, a worm.

wheel stationarily mounted on the casing and co-axial with the said rod, a worm pivthe worm .wheel so as to hold the lever" 1n ,any of its adjusted positions, means for rewheel so that the lever may be moved, and

I i rod having eccentrics, connections between 14. In a device of 'theichara'cter"described,

f a casing, a-pair of ports in said casing, a. 115

moving the worm from engagement with the an index pointer carried by said lever,

cylinder mounted to" rotate" between said A ports, a piston carried bysaid cylinder and v rotating therewith, said piston being provided with an elongated opening, a shaft passing through the cylinder and piston and having a squared 'p'ortionengaging with theopening in the piston, a rod having eccentrics, connections between said rod andshaft whereby when the 1 rod isturned the shaft will be moved with respect to the axial line ofthe cylinder-so asto vary the throw of the piston or to-reverse its direction of action, va lever connected with. said rod, a frame pivoted to said lever, ai-worm wheel stationarily mounted on thecasing and coaxial with the'said rod, a worm 1ournaled lever in any of its adjusted positions, means for removing the worm from engagement with the wheel so that the. lever may be it moved, and an'index pointer carried by said lever.

' 15. In a device of the charactervdesoribed, a casing, a pair of ports in said casing, a a cylinder mounted 'to rotate between said ports, a plurality of'pistons carried by said cylinder and rotating, therewith, said pistons being provided with elongated. opening s, a. shaft passing through the cylinder andpis tons and havin squared. portions engagingwith the open ngs in the pistons, a

said rod and shaft whereby when the rod is vary the throw of the pistonsor to reverse. their direction of action, a lever connected to said rod, a worm .wheel stationarily mounted on the casing and co-axial with the said rod, a worm pivoted to said lever "and normallyiengaging the worm wheel; so, 'as to hold'thelever in any of itsadj'usted positions, means" for removing" the worm from engagement with the wheelso that the i carried by said lever, the pistons being so lever maybe moved, and an index pointer arranged as to discharge successively and at regular intervals. I r In testimony'whereof, I hereunto afiix my signature in thepresence of two witnesses. I I JOHN MoGEQRGE.

Witnesses:

HAnom MoGEo cE,

M. (human.

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