US1483143A - Dredging pump - Google Patents

Dredging pump Download PDF

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Publication number
US1483143A
US1483143A US432796A US43279620A US1483143A US 1483143 A US1483143 A US 1483143A US 432796 A US432796 A US 432796A US 43279620 A US43279620 A US 43279620A US 1483143 A US1483143 A US 1483143A
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United States
Prior art keywords
plunger
pump
water
valve
packing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US432796A
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Whitlock James Gilbert
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Individual
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Priority to US432796A priority Critical patent/US1483143A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Definitions

  • My object is to provide improved means for effectively resisting this entrance of gritty matter. I accomplish the purpose by means of a. water packing surrounding the plunger in advance of the packing and supplied with. clean water under pressure, the supply being automatically controlled by the reciprocation of the plunger.
  • the pump comprises a cylinder 1 and plunger 2, the former set in a water pipeS having the usual suction and exhaust valves 4, 5. 6 indicates the piston packing held by a gland 7.
  • the cylinder formed with an internal annular channel 8.
  • This channel forms the termi nus of a pipe 9 leading from a clean water pump 10 which is indicated as ofthe triplex type to insure a constant supply; and from the channel the water can flow, evenly all around the plunger, into the annular space below between the plunger and the wall of the vertical part of the pump cylinder or the plunger. chamber.
  • a valve 12 having an arm 13 equipped with a roller 14 at its free end.
  • the plunger 2 carries an angular bracket 15 to engage the arm 13, thus swmging the arm and opening and closing the valve as the plunger reciprocates.
  • the roller 14 tends to avoid friction and insure the arm moving easily in contact with the bracket.
  • valve 1 As illustrated the valve 1s opened on the upward stroke, the full lines indicating the positions of the bracket and arm as the upward stroke is completed, while the dotted lines show them at the end of the downward stroke when the valve is closed.
  • a clean water pump 10 may supply them all through a series of branches.
  • a pump In a pump, the combination with a plun er, of a cylinder having an internal annu ar channel formed therein, a water supply pipe leading to said channel, means for supplying water under pressure to said pipe, a, valve in said pipe, and means operated by said plunger in its reciprocation for opening and closing said valve.

Description

Feb 12' 192% 1,483,143 J. G. WHITLOCK DREDGING PUMP Filed Dec. 23 1920 I l 24 m 753 I um. ll Z2 r"-1 -1 Th a); II i o J INVENTOR.
A TTORNEY.
PatentedFeb. 12, 1924.
PATENT OFFICE.
JAMES GILBERT WHITLOCK, OF RICHMOND, VIRGINIA.
DREDGING PUMP.
Application filed December 23, 1920. Serial No. 432,796.
To all whom it may concern.
Be it known that I, JAMES G. WHITLOGK, a citizen of the United States residing at Richmond, in the county of llenrico and State of Virginia, have invented certain new and useful Improvements in Dredging Pumps, of which the following is a specification, reference being had therein to the accompanying drawing.
In the use of pumps which are required to encounter water containing a considerable quantity of sand, as in dredging, it is known that the gritty particles tend to work along the plunger and into the packing, causing the packing to wear rapidly and the bearing surfaces of the plunger and cylinder to become scored. This tendency increases with the speed of operation of the pump.
My object is to provide improved means for effectively resisting this entrance of gritty matter. I accomplish the purpose by means of a. water packing surrounding the plunger in advance of the packing and supplied with. clean water under pressure, the supply being automatically controlled by the reciprocation of the plunger.
I have illustrated conventionally a vertical sectional view of a pump with complementary parts adapted to carrying out the invention.
The pump comprises a cylinder 1 and plunger 2, the former set in a water pipeS having the usual suction and exhaust valves 4, 5. 6 indicates the piston packing held by a gland 7.
Just below the packing I have shown the cylinder formed with an internal annular channel 8. This channel forms the termi nus of a pipe 9 leading from a clean water pump 10 which is indicated as ofthe triplex type to insure a constant supply; and from the channel the water can flow, evenly all around the plunger, into the annular space below between the plunger and the wall of the vertical part of the pump cylinder or the plunger. chamber.
Within the pipe 9 is a valve 12 having an arm 13 equipped with a roller 14 at its free end. The plunger 2 carries an angular bracket 15 to engage the arm 13, thus swmging the arm and opening and closing the valve as the plunger reciprocates. The roller 14 tends to avoid friction and insure the arm moving easily in contact with the bracket.
It is immaterial whether the clean water from pump 10 be admitted to channel 8 on the upward or downward stroke of the plunger as this is merely a matter of arrangement of valve 12. As illustrated the valve 1s opened on the upward stroke, the full lines indicating the positions of the bracket and arm as the upward stroke is completed, while the dotted lines show them at the end of the downward stroke when the valve is closed.
With the main pump and clean water pump operating together a water packing under pressure is maintained in channel 8; and in the annular space between the plunger and the plunger chamber. This effectively prevents sand and other gritty matter from entering the said annular space.
When a series of main pumps is used a clean water pump 10 may supply them all through a series of branches.
7 In operation, the plunger rises and falls, drawing the sand charged water in by the valvel: and discharging it by the valve 5. At the same time clean water forced into the plunger chamber around the plunger 2 keeps the sand charged Water out of this plunger chamber, and away from the pack-' T claim as my invention:
In a pump, the combination with a plun er, of a cylinder having an internal annu ar channel formed therein, a water supply pipe leading to said channel, means for supplying water under pressure to said pipe, a, valve in said pipe, and means operated by said plunger in its reciprocation for opening and closing said valve.
In testimony whereof I have hereunto affixed my signature in the presence of two witnesses.
JAMES GILBERT VVHITLOCK.
Witnesses:
R. R. HARRISON, R. A. BICKS.
US432796A 1920-12-23 1920-12-23 Dredging pump Expired - Lifetime US1483143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US432796A US1483143A (en) 1920-12-23 1920-12-23 Dredging pump

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US432796A US1483143A (en) 1920-12-23 1920-12-23 Dredging pump

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485208A (en) * 1947-11-17 1949-10-18 Chain Belt Co Concrete placement apparatus
US2667280A (en) * 1949-04-01 1954-01-26 Standard Oil Dev Co Handling finely divided solid materials
US2678609A (en) * 1948-03-06 1954-05-18 Emsco Mfg Company Lubricating and sealing means
US2768587A (en) * 1952-01-02 1956-10-30 Du Pont Light metal pump
US3091186A (en) * 1959-10-02 1963-05-28 Bran & Luebbe Pumping method and pumps for suspensions
US3144831A (en) * 1961-07-13 1964-08-18 Beckman Instruments Inc Fluid gradient engine
US3256827A (en) * 1964-12-21 1966-06-21 James E Smith Hydraulic power converter
DE1296002B (en) * 1962-02-14 1969-05-22 Gartner & Co J Conveyor device with piston pump for conveying thick-fluid masses, especially concrete
US3471203A (en) * 1967-01-30 1969-10-07 Rader Pneumatics & Eng Co Ltd Particulate material pumping apparatus
US3749529A (en) * 1971-02-16 1973-07-31 Armco Steel Corp Plunger packing wash system
US4089626A (en) * 1975-12-22 1978-05-16 Dover Corporation Injector pump
US4920863A (en) * 1986-09-24 1990-05-01 Mitsui & Co., Ltd. Plunger pump
US5131806A (en) * 1986-09-30 1992-07-21 Mitsui & Co., Ltd. Pump
US5337651A (en) * 1990-07-06 1994-08-16 Advanced Technology Materials, Inc. Apparatus and method for protection of pumps used for delivery of air- or moisture-sensitive liquids

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485208A (en) * 1947-11-17 1949-10-18 Chain Belt Co Concrete placement apparatus
US2678609A (en) * 1948-03-06 1954-05-18 Emsco Mfg Company Lubricating and sealing means
US2667280A (en) * 1949-04-01 1954-01-26 Standard Oil Dev Co Handling finely divided solid materials
US2768587A (en) * 1952-01-02 1956-10-30 Du Pont Light metal pump
US3091186A (en) * 1959-10-02 1963-05-28 Bran & Luebbe Pumping method and pumps for suspensions
US3144831A (en) * 1961-07-13 1964-08-18 Beckman Instruments Inc Fluid gradient engine
DE1296002B (en) * 1962-02-14 1969-05-22 Gartner & Co J Conveyor device with piston pump for conveying thick-fluid masses, especially concrete
US3256827A (en) * 1964-12-21 1966-06-21 James E Smith Hydraulic power converter
US3471203A (en) * 1967-01-30 1969-10-07 Rader Pneumatics & Eng Co Ltd Particulate material pumping apparatus
US3749529A (en) * 1971-02-16 1973-07-31 Armco Steel Corp Plunger packing wash system
US4089626A (en) * 1975-12-22 1978-05-16 Dover Corporation Injector pump
US4920863A (en) * 1986-09-24 1990-05-01 Mitsui & Co., Ltd. Plunger pump
US5131806A (en) * 1986-09-30 1992-07-21 Mitsui & Co., Ltd. Pump
US5337651A (en) * 1990-07-06 1994-08-16 Advanced Technology Materials, Inc. Apparatus and method for protection of pumps used for delivery of air- or moisture-sensitive liquids
US5431957A (en) * 1990-07-06 1995-07-11 Advanced Technology Materials, Inc. Apparatus and method for protection of pumps used for delivery of air- or moisture-sensitive liquids

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