US981804A - Rotary pump or compressor. - Google Patents

Description

R. M. SLOAN & Z. M. LINDLEY.

ROTARY PUMP 0B. COMPRESSOR.

APPLICATION IILBD DEO. 23,1909.

981,804. Patent-.ed .1311.111911 a SHEETS-SHEET 1.

R. M. SLOAN & ZLM. LINDLEY. ROTARY PUMP OB. COMPRESSOR.

APPLICATION FILED 1 JBo.2s, 19o9.

'THE NvRR'ls PETER: co., wAsHlNcroN, n. v:4

R. M. SLOAN & Z. M. LINDLEY.

ROTARY PUMP 0R COMPRESSOR. APPLICATION FILED DEC.23,1909.

981,804. Patented Jan. 17,1911.

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ROBERT M. SLOAN AND ZACI-IARY M. LINDLEY, OF CARTI-IAGE, MISSOURI; SAID LINDLEY ASSIGNOR TO SAID SLOAN.

ROTARY PUMP OR COMPRESSOR.

Specification of Letters Patent.

Patented Jan. 17, 1911.

Application filed December 23, 1909. Serial No. 534,730.

To all whom it may concern:

Be it known that we, ROBERT M. SLOAN and ZAoi-mnr M. LINDLEY, citizens of the United States, residing at Carthage, in the county of Jasper and State of Missouri, have invented a new and useful Rotary Pump or Compressor', of which the following is a specification.

The invention relates to a rotary pump or compressor.

rlhe object of the present invention is to improve the construction of rotary pumps, and to provide a pump structure, designed for pumping oil or water, compressing air and analogous operations, and equipped with a continuously rotating head, carrying a reciprocatory piston or plunger, movable transversely of the rotating head to take in the material at the inlet port and dis charge the same at the outlet port, and operated by mechanism capable of reciprocating the piston or plunger, while the same is at or opposite the inlet or outlet ports, and of also holding the piston or plunger stationary with respect to the rotating head while the former is traveling between the inlet and outlet ports.

Another object of the invention is to equip the pump with means for storing power during the periods when the piston or plunger is traveling between the inlet and outlet ports and for expending the same to assist the engine or other motive power for actuating the pump, whereby the capacity of the engine necessary to operate the pump is reduced practically one half.

rlhe invention also has for its object to provide means for maintaining the necessary liquid or air tight fit or connection between the rotating head and its casing, and to provide adjustable means for the piston or plunger, adapted to maintain a liquid and air tight lit between the piston or plunger and the head and to preserve the proper Vrelation between the ends of the piston or plunger and thev outer casing, while the former is traveling between the inlet and outlet ports, so that a full charge of material operated on will be carried from the inlet to the outlet port and completely discharged at the latter without returning any of the liquid to the inletport.

With these and other objects in view, the

invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacricing any of the advantages of the invention.

In the drawings Figure 1 is an elevation of a rotary pump or compressor, constructed in accordance with this invention. Fig. 2 is a central longitudinal sectional view of the same. Fig. 3 is a transverse sectional view. Fig. 4 is a plan view, the outlet or discharge pipe being in section. Fig. 5 is a horizontal sectional view on the line 5-5 of Fig. 2. Figs. 6 and 7 are diagrammatic views, illustrating the operation of the reciprocatory piston or plunger and the actuating means therefor. Fig. 8 is a detail sectional view, illustrating the construction of the cushioning devices.

Like numerals of reference designate corresponding parts in all the ligures of the drawings.

In the embodiment of the invention, the continuously rotating head 1 is in the form of a ball or sphere, operating withinv a substantially spherical outer casing 2, composed of a series of horizontally placed sections and interposed packing rings 3, which, when the sections are drawn together, are compressed and forced inwardly, whereby a liquid and air tight fit or connection is maintained between the outer casing and the ball. The top and bottom sections 4 and 5 are provided with approximately segmental enlargements, forming outlet and inlet chambers or cavities 6 and 7, which are approximately segmental, as clearly illustrated in Fig. 3 of the drawings. The bottom section is of a size to receive slightly less than half of the head. OThe intermediate sections 8 and 9, which are located centrally of the head, are preferably of uniform size and the intermediate section 10, which is interposed between the section 8 and the top section, is slightly narrower than the said sections 8 and 9. The circular or ring-shaped sections, however, may be of any desired number, and the packing rings, which commencel slightly below the center of the ball, are arranged at intervals between the lo-wer packing ring and the upper chamber 6 in order that the rotary head may carry a full charge of material from the bottom of the casing to the outlet chamber and to prevent the rotary'head from carrying any of the liquid backward from the outlet chamber 6 to the inlet chamber or cavity 7.

The sections of the outer casing are provided with horizontallyprojecting arms 11, disposed diametrically of the pump and radiating from the spherical casing, as clearly shown in Fig. 5 of the drawings. The arms 11 of the sections of the outer casing are arranged in vertical series and are supported by vertical standards 12 o-f a base plate 13. The packing rings are also provided with extensions 14, which are fitted between the arms 11, and the latter are connected with the standards 12 by vertical screws 15, piercing the arms and the extended portions of the packing rings and engaging threaded openings or sockets 16 of the standards. The lowerl ends of the screws may be fixed or anchored to the standards in any other desired manner, and the upper ends of the screws are provided with nuts 17, adapted to be rotated for compressing the packing rings. Any other suitable means, however, may be employed for compressing the packing rings and securing the sections of the outer casing together. The standards or pedestals 12, form rigid supports for the casing at each corner of the base plate, and the ump is thereby rigidly held in position on tile said base plate.

The casing is provided at the bottom with an inlet port 18, which may be connected by a pipe 19, or other suitable means with the source of supply, the pump being adapted for raising water or oil and may be advantageously employed in the oil fields for pumping the oil to the refineries. The top of the casing, which is provided with an outlet port 20, has a discharge or outlet pipe 21 connected with it, and the casing is also equipped with an air dome 22, arranged at the top of the casing and communicating with the discharge chamber or cavity.

The rotary head is provided with a cylindrical diametrically arranged opening 23 in which a reciprocatory piston or plunger 24 operates. The reciprocatory piston or plunger, which is circular in cross section, is provided lat its ends with adjustable end members or sections 25, also circular in cross section and having' a rounded or convex outer end face 26 to lit the interior bearing surface of the outer casing. The-outer end faces of the adjustable end sections or members 25 conform to the configuration of the outer cylinder and accurately fit the same, so that when one end of the piston is traveling from the outlet chamber 6 to the inletchamber 7, as illustrated in Fig. 7 of the drawings, the opening 23 of the head will be entirely closed at that end in order to prevent the head from conveying any of the material back from the outlet port to the inlet port. The adjustable end sections or members are provided with threaded stems 27, engaging threaded sockets 28 of the body of the piston or plunger. The end faces 29 of the adjustable end sections or members and the end faces 30 of the body of the piston are oppositely beveled, the beveled faces diverging outwardly and being adapted to compress and force outwardly packing 31, interposed between the said beveled faces. By this construction an air` tight connection between the piston or plunger and the rotary head is produced and readily maintained, and by placing a suiiicient amount of packing between the end sections or members and the body portion of the piston or plunger, the said end sections or members may be accurately positioned with relation to the bearing surface of the outer casing. Should the end sections or members become 'worn or the packing become compressed, the latter may be renewed and the adjustable end sections or members arranged to lit properly against the interior of the casing. The end sections or members are provided with recesses 32, adapted to receive a spanner, or other tool for adjusting the said end sections or members.

The piston is reciprocated during the rotary movement of the head by an oscillatory crank element, preferably in the form of a horizontal crank shaft 33, provided at an intermediate point with a crank bend 34, arranged in a transverse slot 35 of the reciprocatory piston. The slot 35 is provided with a suitable lining 36 to prevent wear of the piston, and the crank shaft operates in a cylindrical opening 37, intersecting the piston receiving opening and constituting a lubricant chamber. rlhe inner end 38 of the crank shaft is journaled in a bearing recess or socket 39 of a solid horizontal journal or shaft 40 of the rotary head. The outer end of the crank shaft extends through a tubular journal 41, forming a continuation of the opening 37. The journals 40 and 41 are arranged in horizontally alined bearings 42 and 43 of the outer casing; the bearing 42 is equipped with a stuffing boX 44 having a suitable packing, and the other bearing 43 is provided with a removable end wall or bonnet 45, a suitable packing 46 being interposed between the end or bonnet 45 and the end of the bearing. The tubular journal of 125 the rotary head receives a bearing sleeve 46a, having a central opening through which the outer portion ofthe crank shaft passes. The bearing sleeve, which snugly fits the tubular journal, extends from the outer end thereof 130 gral with the adjacent into the chamber 37 and terminates adjacent to the crank bend, and it forms a support for the crank shaft and prevents the same from springing in the operation of the pump. The outer portion of the crank shaft pierces the packing and the end wall or bonnet 45 and carries an upwardly extending actuating arm 47, provided at its lower end with a hub 48 and adjustably secured to the outer portion of the crank shaft by means of a clamping screw 49. rEhe upper o-r outer portion of the arm 47 is provided with a longitudinal slot 50, adjustably receiving a pivot 51, which connects the inner end of a pitman 52 to the arm. The outer cnd of the pitman 52 is connected with a wrist pin 53 of a crank disk or wheel 54, mounted on a horizontal shaft 55, which is journaled in suitable bearings 56 of the outer casing. The bearings 56 are sectional, the sections being preferably formed intesections of the outer casing, but any other suitable means may be employed for supporting the shaft 56. r'he horizontal shaft 55 also carries a gear wheel 57, keyed or otherwise fixed to the shaft 55 and meshing with the gear wheel 58, mounted on the shaft or journal 40 of the rotary head.

A pulley 59, which is fixed to the shaft or journal 40, is in practice connected by a belt (not shown) withv a suitable engine or motor. The gear wheel 58 is twice the diameter of the gear wheel 57, and t-he shaft and the crank disk or wheel 54 make two revolutions to each revolution of the head l. At each revolution of the crank disk or wheel, the upwardly extending arm 47 is oscillated and swung inward from the position shown in Fig. 6 to the position illustrated in Fig. 7 and outward from the latter' position to the outer position illustrated in Fig. 6. One half of a revolution of the crank disk or wheel carries the arm 47 from one of the said positions to the other. The reciprocatory piston is moved upwardly when the arm 47 is swung inwardly, and while its terminals are traveling across the inlet and outlet ports, thereby through suction drawing in at the inlet port a quantity of material operated on and simultaneously expelling at the outlet port the charge of material carried by the rotary head. The piston is reciprocated only while the ends of the piston receiving opening or chamber is in communication with the inlet and outlet chambers, and it remains stationary while it is traveling` b'etween the said chambers. In Fig. 7 of the drawings, the rotary head is shown as having received its charge` and as the arm 47 is traveling outward the crank bend 34 presses against the upper side wall of the slot of the piston and holds the piston against the outer casing and etfectually prevents any of the material contained in the outlet chamber from being carried backward by the rotary head. The piston is maintained stationary with relation to the rotary head while the end, which is in contact with the outer casing is traveling from the outlet chamber to the inlet chamber, and the piston begins to reciprocate as soon as the transverse opening or chamber 23 is placed in communication with the inlet and outlet chambers.

There is practically no work performed by the engine or motor while the piston remains stationary with relation to the rotary head, and this occurs at each alternate quarter revolution of the rotary head. In order to prevent the strain, the wear and tear and the other injury, which will result from the pump by suddenly relieving the engine or motor of the resistance of work at these periods and to store up the power during such periods for use during the working periods of the engine or motor, when the piston is being reciprocated, the crank shaft is equipped with a weight 60, adjustably mounted on'a threaded arm 6l, extending from the hub 4S and arranged at right angles to the arm 47. The weight, which is interiorly threaded to engage the threads of the arm, is adapted to be rotated to move it inwardly or outwardly to vary its effect and to enable its effect to be increased as the column of liquid sustained by the pump increases in length or height. The weight is lifted by the engine while the piston is relatively stationary and is traveling between the inlet and outlet ports, and it moves downwardly assisting the engine while the piston is being reciprocated at the inlet and outlet ports.

By this construction the operation of the pump is not only rendered uniform, but an engine or motor of half the power, which would otherwise be required, is employed. Also the full power of the engine may be utilized and the operation of the pum-p rendered uniform by coupling two or more of the pumps together and timing their operations, so that the piston of one of the pumps will be reciprocating while the other is stationary with respect to the rotary head.

The upward and downward movements of the weight are cushioned by means of a pair of cushioning devices 62 and 63, each consisting of a cylinder, mounted on a suitable pivot 64 and receiving a cushioning spring 65 and a plunger 66, which carries a head at its inner end for engaging the cushioning spring. The outer end of the plunger of one of the cushioning devices is connected to the arm 47 by a pivot 67, and the plunger. of the other cushioning device is connected with the screw or threaded arm 61 by a pivot 68. The weight is cushioned at Ithe end of each of its movements and is prevented from jarring or otherwise injuring the pump. Various other forms of cushioningl means may, however, be employed for cushioning the weight at the ends of the upward and downward movements thereof. The gear wheel 58 also meshes with a smaller gear 69, mounted on a horizontal shaft 70, journaled in suitable bearings 7l and located at the opposite side of the pump from that `at which the shaft 55 is arranged. The bearings 7l are constructed similar to the bearings 56, and the shaft carries a balance or fly wheel 72 for rendering the operation of the pump steady and uniform.

The chamber formed by the crank shaft receiving opening 37 is adapted to receive a lubricant, and a suitable oil passage 73 communicates with the said chamber and preferably extends through the end plate or bonnet 45 and the bearing sleeve 46a to enable oil to be introduced into the lubricant chamber. The lubricant chamber is adapted to contain sufficient oil to lubricate the inner end of the crank shaft and also the reciprocatory piston or plunger. As such parts operate in oil the friction is reduced to a minimum. y

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is:-

1. A pump comprising a rotary spherical head, a substantially spherical casing having inlet and outlet ports and composed of a series of circular sections, packing rings interposed between the sections, means for connecting the sections and for compressing the packing rings, and a reciprocatory piston carried by the rotary head.

2. A pump comprising a rotary spherical head, a reciprocatory piston carried by the head, and a substantially spherical casing having a lower inlet port and an out-let port and composed of horizontally disposed circular sections, packing rings interposed between the sections, and means for connecting the sections and for compressing the packing rings.

3. A pump comprising a rotary spherical head, a reciprocatory piston carried by the head, a casing composed of upper and lower circular sections provided with ports and having interior concavities forming inlet and outlet chambers, and intermediate horizontally disposed ring-shaped sections, packing rings, and means for connecting the sections and compressing the packing rings.

4. A pump comprising a rotary spherical head, a. reciprocatory piston carried by the head, and a substantially spherical casing composed of upper and lower circular sections, and intermediate horizontally disposed substantially ring-shaped sections, said sections being provided with arms or extensions arranged in vertical series, packing rings interposed between the sections and having extensions fitted between the arms or extensions of the said sections, and means for connecting the arms or extensions of the sections for compressing the packing rings.

5. A pump comprising a rotary spherical head, a reciprocatory piston carried by the head, and a substantially spherical casing composed of upper and lower circular sections, and intermediate horizontally disposed substantially ring-shaped sections, said sections being provided with arms or extensions arranged in vertical series, packing rings interposed between the sections and having extensions fitted between the arms or extensions of the said sections, and a base plate provided with standards supporting the arms or extensions. l

(i. A pump comprising a rotary spherica head, a reciprocatory piston carried by the head, and a substantially spherical casing composed of upper and lower circular seotions, and intermediate horizontally disposed substantially ring-shaped sections, said sections being provided with arms or extensions arranged in vertical series, packing rings interposed between the sections and having extensions fitted between the arms Vor extensions of the said sections, a base plate provided with standards supporting the arms or extensions, and vertical fastening means piercing the arms or extensions and connected with the standards and adapted to compress the packing rings.

7. A pump including an outer substantially spherical casing having inlet and outlet ports, a rotary spherical head arranged within the casing and having an opening, and a reciprocatory piston carried by the head and operating within the opening thereof and provided with an end section adjustable inwardly and outwardly and having its outer end face rounded to fit the spherical head.

8. A pump including an outer substantially spherical casing having inlet and outlet ports, a rotary spherical head arranged within the casingand having an opening, a reciprocatory piston carried by the rotary head and operating within the opening thereof and composed of a body portion having a threaded socket, and an adjustable section consisting of a head having fits outer face rounded to conform to the configuration of the casing, and a threaded stem extending from the inner face of the head and fitting in the threaded socket of the body and engaging the threads thereof, the inner face of the head and the end of the body portion being beveled and diverging outwardly, and a packing interposed between the beveled faces of the adjustable section and the body portion and adapted to be expanded through the adjustment of the said section.

9. The combination of an outer casing provided with inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, and means for oscillating the crank element for reciprocating the piston when the saine is opposite the inlet and outlet openings and for holding the piston stationary with relation to the head while the said piston is traveling between the inlet and outlet ports. n

10. The combination of an outer casing provided with inlet and outletports, a rotary headmounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, and means for oscillating the crank element for reciprocating the piston when the same is opposite the inlet and outlet openings and for holding the piston stationary with relation to the head while the said piston is traveling between the inlet and outlet ports, said means including a rotary crank element geared to the rotary head and connected with the first-mentioned crank element.

11. The combination of an outer casing provided with inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, and means for oscillating the crank element for reciprocating the piston when the same is opposite the inlet and outlet openings and for holding the piston stationary with relation to the head while the said piston is traveling between the inlet and outlet ports, said means including a rotary crank element geared to the rotary head, and a pitman connecting the crank elements.

12. A pump including a casing having inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the rotary head, an oscillatory crank shaft connected with the head and having an arm, a rotary crank wheel connected with the arm and actuating the crank shaft, and gearing for connecting the crank wheel with the rotary head.

13. The combination of a casing having inlet and outlet ports, a rotary head mounted within the casing, a reciprocatory piston carried by the head, an oscillatory crank shaft connected with the piston, a countershaft, a crank wheel mounted on the counter-shaft and connected with the crank shaft, and gearing connecting the countershaft with the rotary head.

14:. The combination of a casing having inlet and outlet ports and provided with opposite bearings, a rotary head arranged within the casing and provided with opposite journals arranged in the said bearings, one of the journals being provided with a chamberl extending therefrom, a reciprocatory piston carried by the head, a crank shaft extending through the tubular bearing and the chamber and connected with the reciprocatory piston and supported at its inner end by the journal of the head,l and means for actuating the crank shaft for operating the piston during the rotation of the head. I

15. The combination of a casing having inlet and outlet ports and provided with opposite bearings, a rotary head arranged within the casing and provided with opposite journals arranged in the said bearings, one of the journals being provided with a chamber extending therefrom, a reciprocatory piston carried by the head, a crank shaft extending through the tubular bearing and the chamber and connected with the reciprocatory piston and supported at its inner end by the journal of the head, means for actuating the crank shaft for operating the piston during the rotation of the head and means for introducing lubricant into the said chamber for causing the crank shaft and the piston to run in oil.

16. The combination of a casing having inlet and outlet ports, a rotary head, a reciprocatory piston carried by the head, mechanism connected with the piston for reciprocating the same at the inlet and outlet ports, said mechanism being arranged to maintain the piston stationary with respect to the head while traveling between the inlet and outlet ports, and means arranged to store energy -while the piston is traveling between the ports and adapted to expend the energy in the operation of the pump during the reciprocation of the piston.

17. The combination of a casing having 1nlet and outlet ports, a rotary head, a reciprocatory piston carried by the head, mechanism connected with the piston for reciprocating the same at the inlet and outlet ports, said mechanism being arranged to maintain the piston stationary with respect to the head while traveling between the inlet and outlet ports, and a weight arranged to be raised while. the piston is traveling between the inlet and outlet ports and adapted to fall during the reciprocation of the piston to assist the operation of the pump.

18. The combination of a casing having inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, means for actuating the piston while the same is at the inlet and outlet ports and for holding the piston stationary with respect to the head while the piston is traveling between the ports, and a weighted arm connected with the crank element and arranged to be raised while the piston is traveling between the said ports and adapted to swing downward to assist the reciprocat-ion of the piston at the said ports.

19. rIhe combination of a casing having inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, means for actuating the piston while the same is at the inlet and outlet ports and for holding the piston stationary with respect to the head while the piston is traveling between the ports, and a weighted arm connected with the crank elementand arranged to be raised while the piston is travcling between the said ports and adapted to swing downward to assist the reciprocation of the piston at the said ports, the weight of the arm being adjustable to increase the effect of the weight as the column sustained by the pump increases in height.

20. The combination of a casing having inlet and outlet ports, a rotary head mounted therein, a reciprocatory piston carried by the head, a crank element connected with the piston, means for actuating the piston while the same is at the inlet and outlet ports and for holding the piston stationary with respect to the head while the piston is traveling between the ports, a weighted arm connected with the crank element and arranged to be raised while the piston is travcling between the said ports and adapted to swing downward to assist the reciprocation of the piston at the said ports, and means for cushioning the weight at the ends of the movements thereof.

2l. The combination of a casing having inlet and outlet ports, a rotary head mounted within the casing, a reciprocatory piston carried by the head, a crank element connected with the piston and having an actuating arm, a weighted arm also connected with the crank element, means connected with the actuating arm for reciprocating the piston when the same is opposite the inlet and outlet ports and for holding the piston stationary with respect to the head when the piston is traveling between the said ports, and cushioning devices connected with the arms, said cushioning devices each comprising a casing, a spring located within the casing, and a plunger' arranged to compress the spring.

22. The combination of a casing having inlet and outlet ports, a rotary head mounted within the casing, a reciprocatory piston carried by the head, a crank element connected with the piston and having an actuating arm, a weighted arm also'connected with the crank element, means connected with the actuating arm for reciprocating the piston when the same is opposite the inlet and outlet ports and for holding the piston stationary with respect to the head when the piston is traveling between the said ports, and cushioning devices connected with the arms,

said cushioning devices each comprising a pivoted casing, a spring located within the casing, and a plunger pivotally connected to its respective arm and arranged to compress the spring.

23. The combination of a casing having. inlet and outlet ports, a rotary head mounted within the casing and having an extended journal, a reciprocatory piston carried by the head, a gear mounted on the extended journal of the head, a counter-shaft arranged at one side of the casing, a pinion mounted on. the counter-shaft and meshing with the said gear, mechanism also operated by the counter-shaft for actuating the piston, a shaft located at the opposite side of the casing in parallelism with the counter-shaft and having a pinion meshing with the said gear, and a ily wheel mounted on the lastmentioned shaft.

24. In a pump, the combination of a casing having inlet and outlet ports and provided with opposite bearings, a rotary head having opposite journals arranged in the bearings, one of the bearings being tubular and the head being provided with a chamber extending inwardly from the tubular bearing, a reciprocatory piston carried by the head, a crank shaft extending through the tubular journal and supported at its inner end by the other ournal and having a crank bend operating the piston, a bearing sleeve fitted in the tubular journal'and supporting the outer portion of the crank shaft, and means for actuating the crank shaft to reciprocate the piston.

In testimony, that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of witnesses.

ROBERT M. SLOAN. ZACHARY M. LINDLEY.

iVitnesses to signature of R. M. Sloan:

J. H. BAILEY, WV. E. BAILEY.

Witnesses to signature of Z. M. Lindley :y

J. H. Sresnns, EDITH L. BRowN.

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