US746482A - Rotary pump. - Google Patents

Rotary pump. Download PDF

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Publication number
US746482A
US746482A US16028403A US1903160284A US746482A US 746482 A US746482 A US 746482A US 16028403 A US16028403 A US 16028403A US 1903160284 A US1903160284 A US 1903160284A US 746482 A US746482 A US 746482A
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United States
Prior art keywords
casing
pump
cylindric
rod
rotary
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Expired - Lifetime
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US16028403A
Inventor
Henry O Evans
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NATIONAL SPECIALTY MANUFACTURING Co
NAT SPECIALTY Manufacturing Co
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NAT SPECIALTY Manufacturing Co
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Priority to US16028403A priority Critical patent/US746482A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

Definitions

  • PATENTBD DB0. a 1903.4 H. o. EVANS. ROTARY ⁇ PUMP. APPLICATION FILED JUNE 6,1903.
  • My invention relates to rotary pumps such as are used in barrels or like receptacles.
  • Figures 1 and 2 represent vertical sections, at right angles to each other, of a pump embodying my invention.
  • Figs. 3, 4, 5, and 6 represent horizontal sections on the lines and in the directions indicated.
  • Fig. 7 represents a bottom plan view of the device.
  • 1 designates a casing having at its upper offset end an aperture 2 for connection with a pump-tube 3 and a second aperture 4, provided with a stuffingbox 5, through which passes a rod 6.
  • An abutment 7 in the casing 1 divides the casing into discharge and pump chambers 8 and 9, connected by a semicrescent-shaped passage 10.
  • Through the abutment 7 is an eccentrically-disposed cylindric opening 11, adapted to serve as a bearing for the reduced upper portion 12 of a piston 13.
  • a recess 14 adapted to receive the shaved end 15 of the rod 6.
  • Slots 16 through the body of the piston 13 are filled by blades 17, adapted to move snugly therethrough and to contact with the wall of the chamber 9.
  • the base of the pump-chamber 9 is formed by a plate 18, having a peripheral recess 24,adapted to engage a pin 25in the wall of the casing 1.
  • a semicrescent-shaped passage 19 is formed between the edge of the plate 18 and the wall of the casing, the direction of its widening being the reverse of that of the passage 10.
  • a cylindric foot portion 2O screws into the lower end of the casing 1, forming the lower or suction chamber 22, and may have the ortion 20.
  • the diameter of the casing 1 be as small as is consistent with requisite capacity, so that the ordinary bung-hole of the barrel need not be'enlarged.
  • a rotary barrel-pump provided at its lower end with a cylinder having substantially straight sides and with an offset portion above said cylindric portion, the greatest transverse diameter of which is not substantially greater than the diameter of said cylindric portion, said offset portion having an aperture for the insertion of a pump-tube and a second aperture adapted to pass a rotary rod.
  • a rotary barrel-pump provided at its lower endwith a cylindric casing having substantially straight sides and with an offset por- .tion above said cylindric portion the greatest transverse dimension of which is not substantially greater than the diameter of said cylindric portion, a pump-tube connected with said plate dividing said casing into a plurality of chambers, passages between said chambers and plate, and a piston between said abutment and said plate.
  • a rotary barrel-pump provided at its lower end with a cylindric casing having substantially straight sides and with an offset portion above said cylindric portion, the greatest transverse dimension of which is not substantially greater than the diameter of said cylindric portion, a pump-tube connected to the upper end of said offset portion, a rotary rod exterior of said tube and passing into the upper end of said offset portion, an abut- ⁇ ment and a plate dividing said casing into chambers, passages between said abutments and plate and the wall of said casing, an eccentrically-placed piston forming part of the wall of said passages and blades movable in said piston.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)

Description

PATENTBD DB0. a, 1903.4 H. o. EVANS. ROTARY` PUMP. APPLICATION FILED JUNE 6,1903.
w W. 0 m m a W m d M n 0"... .j d m a lill vz Q N0 MODEL.
Patented December 81, 1903.
v UNITED STATES PATENT OFFICE.
HENRY O. EVANS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO NATIONAL SPECIALTY MANUFACTURING COMPANY, OF PHILADEL- PHIA, PENNSYLVANIA, A FIRM.
ROTARY PU M P.
SPECIFICATION forming part of Letters Patent No. 746,482, dated December 8, 1903.
- Application led June 6, 1903.- Serial No. 160.284. (No model.)
.To all whom it may concern:
Be it known that I, HENRY O. EVA-NS, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvem ent in RotaryPumps, of which the following is a specification.
f My invention relates to rotary pumps such as are used in barrels or like receptacles.
It consists of means for insuring the delivery of ardeiinite quantity of liquid by such pump without regard to the ullage of the barrel.
It further consists of novel details of construction, all as will be hereinafter set forth.
Figures 1 and 2 represent vertical sections, at right angles to each other, of a pump embodying my invention. Figs. 3, 4, 5, and 6 represent horizontal sections on the lines and in the directions indicated. Fig. 7 represents a bottom plan view of the device.
Similar numerals of reference indicate corresponding parts in the figures.
Referring to the drawings, 1 designates a casing having at its upper offset end an aperture 2 for connection with a pump-tube 3 and a second aperture 4, provided with a stuffingbox 5, through which passes a rod 6. An abutment 7 in the casing 1 divides the casing into discharge and pump chambers 8 and 9, connected by a semicrescent-shaped passage 10. Through the abutment 7 is an eccentrically-disposed cylindric opening 11, adapted to serve as a bearing for the reduced upper portion 12 of a piston 13. In the portion 12 is a recess 14, adapted to receive the shaved end 15 of the rod 6. Slots 16 through the body of the piston 13 are filled by blades 17, adapted to move snugly therethrough and to contact with the wall of the chamber 9. The base of the pump-chamber 9 is formed by a plate 18, having a peripheral recess 24,adapted to engage a pin 25in the wall of the casing 1. A semicrescent-shaped passage 19 is formed between the edge of the plate 18 and the wall of the casing, the direction of its widening being the reverse of that of the passage 10. A cylindric foot portion 2O screws into the lower end of the casing 1, forming the lower or suction chamber 22, and may have the ortion 20.
The operation is as follows: It will be understood that the device shown when in use ,is plunged to the bottom of a barrel of molasses, oil, or other liquid, that the pump-tube 3 and rod 6 extend out of the top of the barrel7 and they are there provided with a suitable pump-spout and means for rotating the rod. As these features are well known in the art and form, per se, no part of my invention, I have not deemed it necessary to illustrate Aor further describe them. It will be seen that each rotation of the rodi 6 turns the blade 17 in the chamber 9, the blades sliding smoothly through the slots 16 in the eccentrically-placed piston 13, the edges of the blades sweeping the walls of the chamber. Successive rotations of the rod will draw the liquid in the barrel through the foot-valve 23 into the suction-chamber 22 through the passage 19 into the pumpchamber 9, thence force it through the passage 10 into the discharge-chamber 8 and upward through the pump-tube 3. The foot-valve 23 will always act to prevent any return flow of the liquid, so that the casing 1 and tube 3 will after the rst operation be kept full of the liquid up to the level of the discharging-point. This adapts my device for use with means for counting and registering the rotations of the rod 6, by which means the volume cf liquid delivered may be measured. As such means form no part of the present invention, they are not here illustrated.
It is desirable that the diameter of the casing 1 be as small as is consistent with requisite capacity, so that the ordinary bung-hole of the barrel need not be'enlarged. By offsetting the upper portion of the casing, as shown, I amable to center the rod 6 in the piston 13 without bulging the casing or increasing its size.
It is evident that various changes may be made by those skilled in the art which may come within the scope of my invention, and I do not, therefore, desire to be limited in every instance to the exact construction herein shown and described.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
l. A rotary barrel-pump provided at its lower end with a cylinder having substantially straight sides and with an offset portion above said cylindric portion, the greatest transverse diameter of which is not substantially greater than the diameter of said cylindric portion, said offset portion having an aperture for the insertion of a pump-tube and a second aperture adapted to pass a rotary rod.
2. In a rotary barrel-pump provided at its lower endwith a cylindric casing having substantially straight sides and with an offset por- .tion above said cylindric portion the greatest transverse dimension of which is not substantially greater than the diameter of said cylindric portion, a pump-tube connected with said plate dividing said casing into a plurality of chambers, passages between said chambers and plate, and a piston between said abutment and said plate. Y
3. In a rotary barrel-pump provided at its lower end with a cylindric casing having substantially straight sides and with an offset portion above said cylindric portion, the greatest transverse dimension of which is not substantially greater than the diameter of said cylindric portion, a pump-tube connected to the upper end of said offset portion, a rotary rod exterior of said tube and passing into the upper end of said offset portion, an abut- `ment and a plate dividing said casing into chambers, passages between said abutments and plate and the wall of said casing, an eccentrically-placed piston forming part of the wall of said passages and blades movable in said piston.
HENRY O. EVANS.
Witnesses:
JOHN A. WIEDERSHEIM, E. HAYWARD FAIRBANKS.
US16028403A 1903-06-06 1903-06-06 Rotary pump. Expired - Lifetime US746482A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541405A (en) * 1946-12-18 1951-02-13 Bowser Inc Rotary hand pump
US3207078A (en) * 1965-09-21 Rotary pump
US3207079A (en) * 1963-01-10 1965-09-21 Hypro Inc Spring loaded end port rotary pump
US4561834A (en) * 1983-07-13 1985-12-31 Poss Design Limited Rotary vaned pumps with fixed length and shearing knife-edged vanes
US4638954A (en) * 1983-07-13 1987-01-27 Poss Design Limited Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone
USRE33752E (en) * 1983-07-13 1991-11-26 Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207078A (en) * 1965-09-21 Rotary pump
US2541405A (en) * 1946-12-18 1951-02-13 Bowser Inc Rotary hand pump
US3207079A (en) * 1963-01-10 1965-09-21 Hypro Inc Spring loaded end port rotary pump
US4561834A (en) * 1983-07-13 1985-12-31 Poss Design Limited Rotary vaned pumps with fixed length and shearing knife-edged vanes
US4638954A (en) * 1983-07-13 1987-01-27 Poss Design Limited Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone
EP0134636B1 (en) * 1983-07-13 1989-05-03 Poss Design Limited Rotary vaned pumps
USRE33752E (en) * 1983-07-13 1991-11-26 Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone

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