US2303002A - Tag-line device - Google Patents

Tag-line device Download PDF

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Publication number
US2303002A
US2303002A US383968A US38396841A US2303002A US 2303002 A US2303002 A US 2303002A US 383968 A US383968 A US 383968A US 38396841 A US38396841 A US 38396841A US 2303002 A US2303002 A US 2303002A
Authority
US
United States
Prior art keywords
spring
reel
housing
tagline
rotation
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
US383968A
Other languages
English (en)
Inventor
Ruddock William
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.)
McCaffrey Ruddock Tagline Corp
Original Assignee
McCaffrey Ruddock Tagline 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 BE474018D priority Critical patent/BE474018A/fr
Application filed by McCaffrey Ruddock Tagline Corp filed Critical McCaffrey Ruddock Tagline Corp
Priority to US383968A priority patent/US2303002A/en
Application granted granted Critical
Publication of US2303002A publication Critical patent/US2303002A/en
Priority to ES0178745A priority patent/ES178745A1/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • 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
    • Y10S414/00—Material or article handling
    • Y10S414/126—Handlers with spring devices

Definitions

  • This invention relates to material handling devices, such as crane mechanisms and the like, and
  • Coiled springs used to produce a torque, are very easily broken by any torque tending to unwind them, and when the line parts or becomes detached from the bucket, the reel, free of any restraining influence, tends to spin. Because of its high rotational inertia, such spinning wil1 cause it to continue turning after the spring has reached its neutral condition, thus kinking the spring, often so badly that it cannot be removed from the casing, thus renderingthe entire device useless.
  • Figure 1 is a side elevation of part of a crane, showing the device of the present invention in place on the boom thereof;
  • Figure 2 is an enlarged sectional elevation taken on line 2-2 of Figure 1;
  • Figure 3 is anenlarged fragmentary section of a portion of the device of Figure 1, taken on line 2-2of Figure 1; v
  • Figure .4 is a section taken on line i4 of Figure 2;
  • Figure 5 is a section taken on line 5-5 of Fi ure.2; j I 4 Figure 6 is a fragmentary elevation of a portion of the device of Figure 2 in one condition of operation; and, v Figure '7 is a view similar to Figure 6 of the device in another condition of operation. 7
  • the device has been shown in Figure 1 as applied to a crane having a boom B and supporting a lifting electromagnet' M for handling magnetic materials. It is to be understood, of course, that the device is equally applicable to other forms of lifting or hoisting machines.
  • tagline T is provided which passes over a sheave S attached to the boomand is maintained under suitable tension by the device-with which the present invention is primarily concerned.
  • the power cable for operating the electromagnet M is indicated at C-
  • the reel R main tainstheftagline T under tension and thus preventsjthe magnet from twisting and at the same time protects the cable C against, undue tensioning in a manner hereinafter described.
  • This shaft I3 is rotatably mounted in a flanged bearing 4 and is' secured against outward axial movement by aa collar
  • the bearing I4 is secured to a housing l6 by any'suitable means, as by bolts
  • This housing l6 may be secured to the boom B by U-bolts l8 and clamps l9, or in any other suitable manner.
  • the bearing l4 and housing l6 are held stationary with respect to the boom B and the reels I and l are free to rotate with the shaft 3.
  • This mechanism consists of a coiled spring 28 one end of which is held against movement under normal operation by the bearing l4'and the other end of which turns about the axis of the shaft l3 upon rotation of the shaft.
  • a stub shaft 22 is secured to a plate 23 which is in turn secured to the housing l6 by welding or the'like.
  • a bushing 24 Secured to the tube 2
  • bushing 24 is provided with a bore rotatably engaging the stub shaft 22, thus supporting the tube 2
  • the spring In order to transmit the torque from the spring 29 to the tube 2
  • these projections take the form of short portions extending almost to the interior. surface of. the housing I6, said projections having one end rounded as at 21a and 23a for engaging the hooks 25 and 26 respectively and the other ends 21?) and 28b slanting towards the ends of the housing.
  • the power cable reel is of a slightly smaller diameter than the diameter of the tagline reel l0.
  • winding of the tagline on the reel I0 is accompanied by a slightly slower winding of the power cable C on the reel I
  • the power cable is thus never under tension except that which results from its own weight.
  • a plate 36 is secured to the bearing M by the bolts II.
  • a rod 31, secured to the plate 36 forms a convenient point of attachment for the brush carrier-arms 38, which are secured to said rod for pivotal movement, and are preferably formed of insulating material, and carry brush holders 39 on their free ends.
  • the brush holders are electrically connected to a source of power through insulated studs passing through the plate 36.
  • a housing 40 is secured to plate 36, and extends to near adjacency with plate
  • a tagline takeup device including a support, a reel mounted for rotation thereon, a coiled spring, means connecting one end'of the coiled spring to said support and means connecting the other end of said spring to the reel to cause rotation of said reel relative to said support under the influence of said spring, at least one of said connecting means including means for releasing said spring upon rotation of thereel ahead of the spring and operativeto reconnect said spring upon rotation of the reel in the opposite direction.
  • a tagline takeup device including a support, a. reel mounted for rotation thereon, a coiled spring, said spring having a hook on at least one end thereof, means connecting one end of the coiled spring to said support and means connecting the other end of said spring to the reel to cause rotation of said reel relative to said support under the influence of said spring, at least one of said connecting means including said hook and a projection engageable thereby, said hook and projection transmitting the driving torque of the spring but disengaging upon rotation of the reel ahead of the spring and formed to reengage upon rotation of said reel in the opposite direction.
  • a tagline takeup device including a housing, a helical coiled spring having a hook at each end thereof in said housing, a cylindrical element within said coiled spring, a bushing on each end of said housing and said cylindrical element, one of said bushings being fixed against rotation in said housing and the other rotatable therein, a projection on each of said bushings extending to closely adjacent the interior surface of the housing, each projection having one portion formed to engage a hook of the spring, and the other end sloping away from the spring,
  • a tagline takeup device including a housing, a reel mounted for rotation thereon, a coiled. helical spring in said housing, said spring having a hook formed on at least one end thereof, means securing said spring atone end to the reel and at the other end to the housing, said means inciuding a projection within said housing extending to closely adjacent the interior wall of the housing, said projection being formed with one end extending at a slant toward the end of the housing and at the other end formed to engage the hook of the springsaid spring being under compression, whereby rotation of the reel with respect to the housing in one direction causes engagement of the hook with the projection, but rotation in the opposite direction past the neutral point of the spring causes the hook to disengage from the projection and ride thereover.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US383968A 1941-03-18 1941-03-18 Tag-line device Expired - Lifetime US2303002A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE474018D BE474018A (enrdf_load_stackoverflow) 1941-03-18
US383968A US2303002A (en) 1941-03-18 1941-03-18 Tag-line device
ES0178745A ES178745A1 (es) 1941-03-18 1947-07-02 Un dispositivo de cuerda de sujecion para un mecanismo elevador

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US383968A US2303002A (en) 1941-03-18 1941-03-18 Tag-line device

Publications (1)

Publication Number Publication Date
US2303002A true US2303002A (en) 1942-11-24

Family

ID=23515508

Family Applications (1)

Application Number Title Priority Date Filing Date
US383968A Expired - Lifetime US2303002A (en) 1941-03-18 1941-03-18 Tag-line device

Country Status (3)

Country Link
US (1) US2303002A (enrdf_load_stackoverflow)
BE (1) BE474018A (enrdf_load_stackoverflow)
ES (1) ES178745A1 (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524189A (en) * 1946-06-10 1950-10-03 Murray G Clay Hook structure
US2532828A (en) * 1945-11-10 1950-12-05 Earl C Marshall Tagline device
US2588037A (en) * 1950-09-30 1952-03-04 Orton Crane & Shovel Company Tagline mechanism
US2645432A (en) * 1949-05-09 1953-07-14 Mccaffrey Ruddock Tagline Corp Detachable spring connecting means for spring driven reels
US2658698A (en) * 1949-06-27 1953-11-10 Mccaffrey Ruddock Tagline Corp Dual spring take-up reel
US3062479A (en) * 1959-09-14 1962-11-06 Mccaffrey Ruddock Tagline Corp Means for facilitating replacement of springs in spring rewound tagline devices
DE1146635B (de) * 1959-09-14 1963-04-04 Mc Caffrey Ruddock Tagline Cor Spannleitseil-Aufwickelvorrichtung
DE1174035B (de) * 1960-07-30 1964-07-16 Miag Muehlenbau Einrichtung zum Betaetigen eines Greifers mittels Druckmittel
US3559913A (en) * 1968-08-12 1971-02-02 Michael Hajduk Leads tender
US4009843A (en) * 1975-09-11 1977-03-01 Mccaffrey-Ruddock Tagline Corporation Spring rewound tagline device with spring overload preventing means
US6174575B1 (en) * 1996-08-29 2001-01-16 Canimex Inc. Universal plug for a counterbalancing mechanism
US8888033B2 (en) 2012-09-13 2014-11-18 Conductix, Inc. Spring-driven reel
US20230011558A1 (en) * 2019-12-13 2023-01-12 Igus Gmbh Winding drum and torsion spring for a winding drum

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532828A (en) * 1945-11-10 1950-12-05 Earl C Marshall Tagline device
US2524189A (en) * 1946-06-10 1950-10-03 Murray G Clay Hook structure
US2645432A (en) * 1949-05-09 1953-07-14 Mccaffrey Ruddock Tagline Corp Detachable spring connecting means for spring driven reels
US2658698A (en) * 1949-06-27 1953-11-10 Mccaffrey Ruddock Tagline Corp Dual spring take-up reel
US2588037A (en) * 1950-09-30 1952-03-04 Orton Crane & Shovel Company Tagline mechanism
DE1146635B (de) * 1959-09-14 1963-04-04 Mc Caffrey Ruddock Tagline Cor Spannleitseil-Aufwickelvorrichtung
US3062479A (en) * 1959-09-14 1962-11-06 Mccaffrey Ruddock Tagline Corp Means for facilitating replacement of springs in spring rewound tagline devices
DE1174035B (de) * 1960-07-30 1964-07-16 Miag Muehlenbau Einrichtung zum Betaetigen eines Greifers mittels Druckmittel
US3559913A (en) * 1968-08-12 1971-02-02 Michael Hajduk Leads tender
US4009843A (en) * 1975-09-11 1977-03-01 Mccaffrey-Ruddock Tagline Corporation Spring rewound tagline device with spring overload preventing means
US6174575B1 (en) * 1996-08-29 2001-01-16 Canimex Inc. Universal plug for a counterbalancing mechanism
US8888033B2 (en) 2012-09-13 2014-11-18 Conductix, Inc. Spring-driven reel
US9611125B2 (en) 2012-09-13 2017-04-04 Conductix, Inc. Spring-driven reel
US20230011558A1 (en) * 2019-12-13 2023-01-12 Igus Gmbh Winding drum and torsion spring for a winding drum

Also Published As

Publication number Publication date
BE474018A (enrdf_load_stackoverflow) 1947-07-31
ES178745A1 (es) 1947-09-01

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