US2488249A - Bubble cap securing device - Google Patents

Bubble cap securing device Download PDF

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Publication number
US2488249A
US2488249A US688634A US68863446A US2488249A US 2488249 A US2488249 A US 2488249A US 688634 A US688634 A US 688634A US 68863446 A US68863446 A US 68863446A US 2488249 A US2488249 A US 2488249A
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US
United States
Prior art keywords
riser
holddown
shank
bubble
cap
Prior art date
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
Application number
US688634A
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English (en)
Inventor
Bradford C White
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stone and Webster Engineering Corp
Original Assignee
Stone and Webster Engineering Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR961919D priority Critical patent/FR961919A/fr
Application filed by Stone and Webster Engineering Corp filed Critical Stone and Webster Engineering Corp
Priority to US688634A priority patent/US2488249A/en
Priority to GB4429/48A priority patent/GB643593A/en
Application granted granted Critical
Publication of US2488249A publication Critical patent/US2488249A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/16—Fractionating columns in which vapour bubbles through liquid
    • B01D3/18—Fractionating columns in which vapour bubbles through liquid with horizontal bubble plates
    • B01D3/20—Bubble caps; Risers for vapour; Discharge pipes for liquid
    • B01D3/205—Bubble caps

Definitions

  • BUBBLE CAP SECURING DEVICE Filed Aug. 6, 1946 qvwnlu l m- 7 9:2. -J' J ⁇ INVENTQR imam/m ,6. WHITE By v w zrmw QMM ATTORNEYS Patented Nov. 15, 1949 BUBBLE CAP SECURING DEVICE Bradford 0. White, Lexington, Mass., assignor to Stone & Webster Engineering Corp., Boston, Mass., a corporation of Massachusetts Application August 6, 1946, Serial No. 688,634
  • This invention relates to bubble cap-riser units of fractionating tower bubble trays and relates more particularly to devices for removably securing the bubble caps in position over the risers.
  • a usual mode of installing and removably securing bubble caps in position over the vapor risers of bubble trays within a fractionating tower is to run the shank of a T bolt fastening device up through the bottom opening of the riser from the tray below. By thus operating from beneath the tray, accidental dropping of the T bolt through the riser of the tray being worked on to the tray below, is prevented.
  • the head or crossbar of the T bolt is then either tack welded to the riser or is held up by means of a holding bar. Installation of the bubble cap then follows. However, this procedure requires two men to insert the bolts and install the bubble caps, and a man to do the tack welding.
  • One object of this invention is to overcome the disadvantages aforesaid through the provision of a new and useful bubble cap-riser unit that will enable the cap fastening device to be installed from above the bubble tray without possibility of its being dropped through the riser, that will enable the entire installation to be effected by one man, and requires no welding of the cap fastening device to the riser.
  • Another object of this invention is to provide in a bubble cap-riser unit for fractionating tower bubble trays, a new, useful and improved anchoring or holddown device for the bubble cap.
  • Figure 1 is a fragmentary View in vertical section of a portion of abubble tray embodying this invention, the view. depicting the installed relationship of a single riser in accordance with this invention, its holddown device and bubble cap; and, V
  • Figure 2 is a view in plan of the combination of Figure l with the bubble cap removed in order to show details of the holddown device.
  • a vapor riser is provided with a pair of diametrically opposed openings between its tray and the top of the riser. These openings may be punch-drilled or punched to a jig and are of a size adequate to receive freely and loosely the respective ends of the head or cross-bar of the novel holddown or fastening device of this invention.
  • the shank or stem of the holddown device is provided with a support member; that is, a pair of supporting arms extending laterally outwardly from the shank or stem of the holddown device in vertically spaced relation to the cross bar and preferably disposed at right angles, or substantially at right angles, to the shank and at opposite sides thereof.
  • the support member is also of a length at least slightly in excess of the inside diameter of the vapor riser and is preferably of a length corresponding to the outside diameter of the vapor riser.
  • the spacing between the cross member and support member of the holddown is of a determined magnitude such that with the cross mem.. ber seated in the openings in the walls of the vapor riser, the support member will rest upon the upper rim of the vapor riser, thereby to support the holddown in a vertically upright position thus facilitating subsequent application .of the bubble cap thereto.
  • the support member is disposed at right angles to the cross bar and thus may offer a convenient handle for the installer to grip in initially guiding the holddown device into position in the riser and the riser openings.
  • the opposite ends of the cross bar are preferably provided with enlarged portions forming centralizing members disposed preferably on the top surface of the cross bar and of a magnitude, dimension and configuration to engage, or substantially engage, the outer periphery of the riser when the cross bar is properly lodged in the riser wall openings, thereby automatically to locate the stem of the holddown centrally of the vapor riser.
  • the free end of the holddown shank is preferably threaded to receive a securing nut
  • the bubble cap is preferably supported on the rim of the vapor riser and is removably anchored in position over the vapor riser in the usual fashion as by the securing nut threadedly engaging the shank of the holddown device and frictionally engaging the bubble leap.
  • a vapor riser l of a bubble plate 2 is provided adjacent its top with a pair of corresponding preferably circularjorpeni tgs located at diametrically opposite sides of theriser.
  • a holddown member of cast, "welded orstamped construction having the head or crossjloar i4 and shank 5 is removably disposed in the riser with its cross bar ends lodged in the respectiveiopenings 3.
  • Each end of the cross bar 4 is preferably equipped on the top surface with an enlarged portion forming a centralizing member 6 of a Width-preferably l'ess than that of the cross barb.
  • the centralizing members are profv'ided, respectively, with an inclined plane surface portion] which by engaging the 'riser l assists in centrally locating the holddown in "the riser, that is, i-thas erself-centering:function.
  • eppenings 3 are'suitably dimensioned 'toper- -mitthe free entry and withdrawal of the cross "bar ends inthe assembling and disassembling of the --un7t.
  • the openings are -preferably circular, but it is obvious that they maybe of any other suitable configuration consistent with the attainmentof the foregoing ends and objects.
  • sup ort member extends laterally outwardlv in opposite directions from the shank .15 and at right angles, or substantially right angles, tothes'hank and lto the crossbar A.
  • lthe su port 'memberilll'is suitably dimensioned so as ito overlie at each end the top rim 1;! of the riser 1 thereby toprevent'passage of theholddown device through the riser should it The accidentally dropped is 'heinginstalled or removed.
  • the support mem'beris disposed a determined distance away from the cross bar 43 to rest upon the rim H when the cross bar A is seated in the o en n s '3 and thus serves to hold "the device upright before the bubble cap 8 is ap ied. o
  • the holddownshanke is of sufiic'ient length to extend throughothe bubble cap 18 which is preferably provided withrad-ial webs 9 by which the cap .is supported on the rim ll.
  • Thehubble vcap .is centrally apertured as at 12 for .the passage .of the holddown shank and a threaded end por- .,tion 13 ⁇ ofthe shank is adapted ,to ,be threaded-1y engaged by a nut 54 by which the'bubble cap is normally held firmly. in position over the riser l.withitsmountin lugs B seated on theiriseririm Ll. .Iniorderito disassemble the unit, the nut I4 is removed and the bubble .cap 8 lifted off.
  • the installa- Ztionand removal of the cap fas'tening device may be accomplished from above'thetray without danger of the holddown being lost to the tray below; only one man is necessary for the entire operation; welding "is entirely dispensed with, thus facilitating removal for replacement and repair; and cost is no greater than that of the more conventional types of fastening devices for the purpose; and,the ease of installation is markedly improved.
  • a bubble tray comprising a va or riser havinga pair of oppositely disposed wall openin s a holddown device "having a cross member extending throughsaid openings and having a shank. extending f'leng'thwise of .said riser to beyond the top rim thereof, said device additional y having a support member extending laterally outwardly of said shank for supoortingtheho'lddown device in an upright position in said riser when said cross memberii's seated insaid openings; aibubble cap supportedin position over said rriser; and, securing means co-acting with the shank of said holddowndevice and with said bubble cap for holding .said bubble capin said position.
  • a holddown device for ,said can.
  • said device having a shank and across ihar extending at right angles .to said shank through o positely disposed openings .in the wall portions of said ,r-ise-r, having a support member extending outwardlv from said shank in o posite directions at substantially right angles thereto over the .Ltop .rimiof said riser for su orting the holddown device in --an upright position in said .riser when .said cross .bar is seated in saidopen- Lings, .said cross bar having enlarged ortions ,at
  • the combination with a vapor riser anda bubble can therefor of: a holddown device for removably securing .said bubble cap in position .vice having also a support member spaced from said cross bar and extending in opposite directions from said shank at substantially right angles thereto and to said cross bar over the top rim of said riser for supporting the holddown device in an upright position in said riser when said cross bar is seated in said openings.
  • a holddown device for removably securing a bubble cap on the end of a vapor riser comprising in integral relation an elongated head portion adapted to be disposed in the riser with its terminal portions in oppositely disposed openings in the wall of the riser; a shank portion at substantially right angles to said head portion having provision for receiving fastening means; and, a pair of supporting arms in a vertical plane at substantially right angles to said head portion, for supporting said shank portion in an upright position in the riser, said arms also being suitably spaced from said head portion along said shank portion to permit canting of said shank portion sufficient to effect insertion of said terminal portions in said openings as aforesaid and being of a length greater than the inside diameter of the I riser with which it is adapted to be used, whereby said device may not be passed through the riser,
  • a holddown device in which said head portion has enlarged end portions forming centralizing members at its opposite ends for centrally locating the device in the vapor riser when in use.
  • a holddown device in which said shank portion has a threaded end.
  • a holddown device in which said head portion has enlarged end portions each having an inclined surface and forming centralizing members at its opposite ends for centrally locating the device in the vapor riser when in use.
  • a holddown device in which said supporting arms are carried by said shank portion and extend laterally outward therefrom at substantially right angles thereto and to said head portion.
  • a holddown device in which said head portion and said supporting arms are of substantially equal length.
  • a holddown device for removably securing a cap member on the end of a tubular member comprising in integral relation an elongated head portion adapted to be disposed in the tubular member with its terminal portions in oppositely disposed openings in the wall of the tubular member; a shank portion at substantially right angles to said head portion having provision for receiving fastening means; and, a pair of supporting arms extending from opposite sides thereof in a vertical plane at substantially right angles to said head portion, for supporting said shank portion in an upright position in the tubular member, said supporting arms also being suitably spaced from said head portion along said shank portion to permit canting of said shank portion sufficient to effect insertion of said terminal portions in said openings as aforesaid and being of a length greater than the inside diameter of the tubular member with which it is adapted to be used, whereby said device may not be passed through the tubular member.
  • a capped tube assembly comprising a tube member having oppositely disposed openings in the wall thereof; an apertured cap member at one end of said tube member; a holddown device for said cap member, said device comprising an elongated head portion disposed in said tube member with its terminal portions in said openings, a shank portion protruding through said cap member at substantially right angles to said head portion, and a pair of supporting arms integral with said shank and extending from opposite sides thereof in a vertical plane at substantially right angles to said head portion and slightly above and over the rim of the tube member; and, fastening means borne by said shank portion removably securing said capmember in position at the end of said tube member, whereby upon removing said fastening means for removing said cap, said supporting arms will contact the rim of said tube member and in cooperation with said head portion will maintain said shank portion substantially upright and maintain said REFERENCES CITED
  • the following references are of record in the file of this patent:

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toys (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US688634A 1946-08-06 1946-08-06 Bubble cap securing device Expired - Lifetime US2488249A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR961919D FR961919A (de) 1946-08-06
US688634A US2488249A (en) 1946-08-06 1946-08-06 Bubble cap securing device
GB4429/48A GB643593A (en) 1946-08-06 1948-02-16 Improvements in and relating to devices for securing cap members to the end of fractionating tower riser tubes or like tubular members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US688634A US2488249A (en) 1946-08-06 1946-08-06 Bubble cap securing device

Publications (1)

Publication Number Publication Date
US2488249A true US2488249A (en) 1949-11-15

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US688634A Expired - Lifetime US2488249A (en) 1946-08-06 1946-08-06 Bubble cap securing device

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US (1) US2488249A (de)
FR (1) FR961919A (de)
GB (1) GB643593A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2645469A (en) * 1952-07-19 1953-07-14 Gilbert & Barker Mfg Co Bubble cap fastening means
US2705136A (en) * 1951-07-09 1955-03-29 Fritz W Glitsch & Sons Inc Bubble cap riser
US3408915A (en) * 1966-07-25 1968-11-05 Spuck Iron & Foundry Company Cowling device for underground vent stack
US4399743A (en) * 1981-10-15 1983-08-23 Plastic Oddities, Inc. Vent pipe cap
US4874583A (en) * 1987-11-27 1989-10-17 Texaco Inc. Bubble cap assembly in an ebullated bed reactor
WO2002085504A1 (en) * 2001-04-24 2002-10-31 Fluor Corporation Methods and apparatus for mixing fluids
WO2003078038A1 (en) * 2002-03-14 2003-09-25 Fluor Corporation Methods and apparatus for mixing fluids
US20050166985A1 (en) * 2004-02-04 2005-08-04 K&M Plastics, Llc Pipe cap
US10663192B2 (en) 2013-01-04 2020-05-26 Fleming Vaughn Carroll Vertical vent stack cap

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110193213B (zh) * 2019-06-25 2021-06-29 青岛理工大学 一种防堵塞塔盘

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393992A (en) * 1920-12-04 1921-10-18 Ford Motor Co Radiator-filler cap
US1873137A (en) * 1930-03-05 1932-08-23 Heat Treating Company Bubbler cap construction
GB447800A (en) * 1935-04-18 1936-05-26 Sydney Jamieson Ralph Improvements in or relating to the construction of bubbler column units
US2338928A (en) * 1942-06-22 1944-01-11 Glitsch & Sons Fritz W Supporting device for bubble caps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393992A (en) * 1920-12-04 1921-10-18 Ford Motor Co Radiator-filler cap
US1873137A (en) * 1930-03-05 1932-08-23 Heat Treating Company Bubbler cap construction
GB447800A (en) * 1935-04-18 1936-05-26 Sydney Jamieson Ralph Improvements in or relating to the construction of bubbler column units
US2338928A (en) * 1942-06-22 1944-01-11 Glitsch & Sons Fritz W Supporting device for bubble caps

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705136A (en) * 1951-07-09 1955-03-29 Fritz W Glitsch & Sons Inc Bubble cap riser
US2645469A (en) * 1952-07-19 1953-07-14 Gilbert & Barker Mfg Co Bubble cap fastening means
US3408915A (en) * 1966-07-25 1968-11-05 Spuck Iron & Foundry Company Cowling device for underground vent stack
US4399743A (en) * 1981-10-15 1983-08-23 Plastic Oddities, Inc. Vent pipe cap
US4874583A (en) * 1987-11-27 1989-10-17 Texaco Inc. Bubble cap assembly in an ebullated bed reactor
WO2002085504A1 (en) * 2001-04-24 2002-10-31 Fluor Corporation Methods and apparatus for mixing fluids
WO2003078038A1 (en) * 2002-03-14 2003-09-25 Fluor Corporation Methods and apparatus for mixing fluids
US20050166985A1 (en) * 2004-02-04 2005-08-04 K&M Plastics, Llc Pipe cap
US6978803B2 (en) * 2004-02-04 2005-12-27 K&M Plastics, Llc Flue cap
US10663192B2 (en) 2013-01-04 2020-05-26 Fleming Vaughn Carroll Vertical vent stack cap

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Publication number Publication date
GB643593A (en) 1950-09-20
FR961919A (de) 1950-05-25

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