US3753406A - Cableway arrangement - Google Patents

Cableway arrangement Download PDF

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Publication number
US3753406A
US3753406A US00186037A US3753406DA US3753406A US 3753406 A US3753406 A US 3753406A US 00186037 A US00186037 A US 00186037A US 3753406D A US3753406D A US 3753406DA US 3753406 A US3753406 A US 3753406A
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US
United States
Prior art keywords
driveway
payload
cable
span
support
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
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US00186037A
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English (en)
Inventor
G Muller
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AEROBUS DEVELOPMENT Ltd
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Individual
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Publication date
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Publication of US3753406A publication Critical patent/US3753406A/en
Assigned to AEROBUS DEVELOPMENT LTD. reassignment AEROBUS DEVELOPMENT LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MULLER, GERHARD
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/007—Cable tensioning devices
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • E01B25/16—Tracks for aerial rope railways with a stationary rope
    • E01B25/18—Ropes; Supports, fastening or straining means for ropes

Definitions

  • the driveway is stressed and further is preloaded by the support cable through the agency of connection [52]
  • U.S. Cl 104/112, 104/123, 104/124 element means between each two supports limiting a [51] Int. Cl 1361b 7/10 span zone in a manner producing a negative sag when ⁇ 5 8] Field of Search 104/ 89-94, the driveway is not subjected to the load of the payload. 123-125, 112-115; 14/ 17-19
  • the preloading is such that the payload guided along the driveway, and against the action of the preloading [56]
  • References Cited of the driveway produced by the negative sag follows UNITED STATES PATENTS a direction of travel which approximates a straight line.
  • the present invention broadly relates to the art of overground traffic systems, and, more specifically, is directed to a novel cableway arrangement embodying a driveway or track formed from at least one cable and further incorporating at least one support cable.
  • the present invention also is directed to a novel method of constructing a suspension system for overhead traffic systems.
  • the traffic loads (gondolas or cabins), sometimes also referred to as payloads, cause a considerable increase in the sagging of the cable since a force equilibrium condition is brought about via the pylon saddles. If a payload travels through a number of span zones bounded in each case by two pylons or supports, then, the proportion of the span weight participating in force equalization markedly decreases with increasing distance of the load.
  • the payload depending upon the span width and the support pressures, brings about a stress equalization in that the sagging of the neighboring unloaded span zones reduces to the same degree as the sagging or bending through increases in the loaded span zones.
  • the loaded span zone thus gathers up cable out of the unloaded neighboring zones. This, in turn, causes a continuous sliding of the cable upon the support shoes of the pylons and therefore results in a bending load at the cable wires which can lead to rupture. Apart from the foregoing, the pronounced sagging of the cable requires reduced traveling speed for the payloads.
  • a primary object of the present invention is to provide just such improved construction of cableway arrangement which effectively and reliably fulfills the existing need in the art and is not associated with the aforementioned drawbacks present in the prior art constructions.
  • Another and more specific object of the present invention relates to an improved cableway arrangement which overcomes the previously mentioned drawbacks, and wherein in particular the previous pronounced sagging of the cable and the thus resulting cable loads are prevented, and wherein furthermore the payload can be moved at a multiple higher traveling speed than heretofore the case.
  • Still a further significant object of the present invention relates to a novel method of constructing a suspension system for overhead transport systems or the like.
  • a further noteworthy object of the present invention relates to a novel construction of overhead cableway which is extremely reliable and safe in operation, permits increased travel speeds of the traffic load, and insures for travel of the traffic load along a practically linear path of travel.
  • the invention is predicated upon the principles that the driveway which is under a tensional stress is pre-loaded, by means of the support cable through the agency of connection elements in such a manner that between two supports limiting a span zone there is present a negative sag during a condition of no-loading by the payload.
  • This preloading with negative sag is such that the payload which is guided along the driveway follows a path of travel which approximates a straight line,. and the payload acts against the action of the pre-loading of the driveway producing the negative sag.
  • FIG. 1 schematically illustrates the principal stress or tension conditions in a support cable and a driveway
  • FIG. 2 schematically illustrates the stress or tension conditions which prevail in a support cable and a driveway of a known cableway arrangement designed according to the principal of a suspension bridge;
  • FIG. 3 illustrates the inventive cableway arrangement.
  • FIG. 1 the principal stress conditions prevailing at a support cable 1 and at a driveway 2 formed by a carrying cable.
  • These cables 1 and 2 are fixedly anchored at their terminal points and throughout their extension are supported at a number of locations by the supports or pylons 3.
  • the regions between the terminal points and the pylons 3 are designated herein as the span zones.
  • no stress or tension prevails at the support cable 1, so that this support cable 1 will be seen to exhibit a large sag or hanging-through at each span zone.
  • the driveway 2 exhibits in the unloaded condition a very small sag, yet, however, is subjected to a very high stress or tension. Apart from the stress, both the weight of the cableway carrying cable as well as also the weight of the support cable are com pletely taken up by the pylons 3.
  • the driveway 2 is suspended by connection elements 4 at the support cable 1. Owing to this arrangement, there is no longer produced any contact or bearing forces at the pylons 3 by virtue of the unloaded driveway 2, as such technique is practiced for instance with suspension bridges or suspended traveling cables. A traffic load or payload thereby produces at the corresponding span zone a sagging of the support cable 1 and driveway 2, as such can be clearly recognized by referring to FIG. 2. The weight of the payload 5 must be taken up by the neighboring pylons 3'. Additionally, in this case, owing to the increasing hanging through or sag, it will be recognized that cable is drawn or gathered out of the neighboring span zones which, as previously considered heretofore, can result in considerable damage to the cable.
  • the carrying cable defining the driveway 2 which is under stress or tensile load is additionally pre-loaded by the support cable 1 through the agency of the connection elements 4, in each case between each two supports or pylons 3" in such a manner that a negative sag or camber appears at the driveway 2 in the unloaded condition; in other words there appears an upward arching of the driveway. Consequently, there takes place an overloading of the support cable 1.
  • the basic difference of this arrangement in comparison to the suspension type principle employed in the construction of FIG. 2 resides in the fact that the carrying cables of the driveway 2 are now much more strongly prestressed or tensioned and possess approximately twice the tensile load of the support cable 1 and the support cable 1 is pre-loaded by the driveway 2.
  • the calculation should be based upon an average value, approximately a half occupied cabin.
  • the pre-loading of the driveway 2 which produces the negative sag or through-hang is chosen such that the payload which is guided along the driveway follows a path of travel which approximates a straight line.
  • a cableway arrangement for moving a payload comprising at least an elongated driveway, at least one support cable, spaced support means positioned apart to form at least one span, said driveway and said cable extending between and being attached at the ends of said span to said spaced support means, connection element means interposed between said driveway and said support cable for preloading the driveway, such that under no load said driveway has a negative sag along said span, and said driveway being stressed sufficiently by said connection element means under no load to generate negative bearing forces at said support means.
  • a cableway arrangement for moving a payload comprising at least one stressed cable forming a driveway, at least one support cable, connection element means interposed between said driveway and said support cable for preloading the driveway via said support cable such that under no load each span has a negative sag, and wherein when a payload is guided along the driveway such payload, against the action of the preloading of the driveway produced by the negative sag, follows a direction of travel which approximates a straight line, a plurality of spaced support means for said cableway arrangement and respectively defining therebetween each said span, and wherein the force exerted upon said support means by said driveway during a no load condition of each span corresponds to the average payload.
  • a cableway arrangement for a moving payload comprising at least one stressed cable forming a driveway, at least one support cable, connection element means interposed between said driveway and said support cable for preloading the driveway via said support cable such that under no load each span has a negative sag, and wherein when a payload is guided along the driveway such payload, against the action of the preloading of the driveway produced by the negative sag, follows a direction of travel which approximates a straight line, and wherein said stressed cable forming said driveway possesses a tensional load which is approximately twice tl at of said support cable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
US00186037A 1970-10-13 1971-10-04 Cableway arrangement Expired - Lifetime US3753406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1511270A CH529645A (de) 1970-10-13 1970-10-13 Seilbahnanordnung

Publications (1)

Publication Number Publication Date
US3753406A true US3753406A (en) 1973-08-21

Family

ID=4406450

Family Applications (1)

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US00186037A Expired - Lifetime US3753406A (en) 1970-10-13 1971-10-04 Cableway arrangement

Country Status (13)

Country Link
US (1) US3753406A (da)
JP (1) JPS5020738B1 (da)
AT (1) AT327284B (da)
BE (1) BE773774A (da)
CA (1) CA952763A (da)
CH (1) CH529645A (da)
DK (1) DK147471C (da)
FR (1) FR2109977A5 (da)
GB (1) GB1364555A (da)
MY (1) MY110485A (da)
NL (1) NL7114022A (da)
SE (1) SE368972B (da)
ZA (1) ZA716707B (da)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069765A (en) * 1974-12-10 1978-01-24 Gerhard Muller Cableway system and particularly support system therefor
US4208969A (en) * 1977-05-17 1980-06-24 Rudolf Baltensperger Suspended rail structure especially for monorail vehicles
US4211171A (en) * 1977-11-14 1980-07-08 Rudolf Baltensperger Station for suspended track-type railway
US5720225A (en) * 1995-08-02 1998-02-24 Aerobus International, Inc. Elevated cableway system
US6065405A (en) * 1995-08-02 2000-05-23 Aerobus International, Inc. Elevated cableway system
US6070533A (en) * 1995-08-02 2000-06-06 Pugin; Andre O. Elevated cableway system
US6167812B1 (en) 1995-08-02 2001-01-02 Aerobus International Inc. Elevated cableway system
US6324990B1 (en) 1995-08-02 2001-12-04 Aerobus International, Inc. Elevated cableway system
US20070124876A1 (en) * 2005-12-01 2007-06-07 Tao Jian R Self-anchored suspension bridge
US20090293757A1 (en) * 2008-06-02 2009-12-03 Innova Patent Gmbh Installation for the downward transport of persons from a mountain station to a valley station
US20100029843A1 (en) * 2008-07-31 2010-02-04 Conocophillips Company Drag reducing copolymers for cold fluid applications
CN102490726A (zh) * 2011-12-12 2012-06-13 湖南湖大三佳车辆技术装备有限公司 一种缆车系统
US20180057018A1 (en) * 2014-12-30 2018-03-01 Suppes Family Trust Glider Guideway System
CN108411716A (zh) * 2018-04-03 2018-08-17 中铁第四勘察设计院集团有限公司 一种简易斜拉大跨度悬挂式单轨系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544052U (da) * 1977-06-13 1979-01-11
EP0207887A1 (fr) * 1985-06-27 1987-01-07 Ateliers de Constructions Mecaniques de Vevey S.A. Installation de transport public roulant sur une voie suspendue

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541964A (en) * 1968-02-05 1970-11-24 Transportation Systems Inc Pretensioned elevated track and cable structure
US3604361A (en) * 1969-01-21 1971-09-14 Aerial Transit Systems Inc Aerial guideway system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541964A (en) * 1968-02-05 1970-11-24 Transportation Systems Inc Pretensioned elevated track and cable structure
US3604361A (en) * 1969-01-21 1971-09-14 Aerial Transit Systems Inc Aerial guideway system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069765A (en) * 1974-12-10 1978-01-24 Gerhard Muller Cableway system and particularly support system therefor
US4208969A (en) * 1977-05-17 1980-06-24 Rudolf Baltensperger Suspended rail structure especially for monorail vehicles
US4211171A (en) * 1977-11-14 1980-07-08 Rudolf Baltensperger Station for suspended track-type railway
US6606954B1 (en) 1995-08-02 2003-08-19 Aerobus International, Inc. Elevated cableway system
US6065405A (en) * 1995-08-02 2000-05-23 Aerobus International, Inc. Elevated cableway system
US6070533A (en) * 1995-08-02 2000-06-06 Pugin; Andre O. Elevated cableway system
US6167812B1 (en) 1995-08-02 2001-01-02 Aerobus International Inc. Elevated cableway system
US6324990B1 (en) 1995-08-02 2001-12-04 Aerobus International, Inc. Elevated cableway system
US5720225A (en) * 1995-08-02 1998-02-24 Aerobus International, Inc. Elevated cableway system
US7415746B2 (en) 2005-12-01 2008-08-26 Sc Solutions Method for constructing a self anchored suspension bridge
US20070124876A1 (en) * 2005-12-01 2007-06-07 Tao Jian R Self-anchored suspension bridge
US20090293757A1 (en) * 2008-06-02 2009-12-03 Innova Patent Gmbh Installation for the downward transport of persons from a mountain station to a valley station
US8171857B2 (en) 2008-06-02 2012-05-08 Innova Patent Gmbh Installation for the downward transport of persons from a mountain station to a valley station
US20100029843A1 (en) * 2008-07-31 2010-02-04 Conocophillips Company Drag reducing copolymers for cold fluid applications
CN102490726A (zh) * 2011-12-12 2012-06-13 湖南湖大三佳车辆技术装备有限公司 一种缆车系统
US20180057018A1 (en) * 2014-12-30 2018-03-01 Suppes Family Trust Glider Guideway System
CN108411716A (zh) * 2018-04-03 2018-08-17 中铁第四勘察设计院集团有限公司 一种简易斜拉大跨度悬挂式单轨系统

Also Published As

Publication number Publication date
SE368972B (da) 1974-07-29
DK147471B (da) 1984-08-20
DE2149871B2 (de) 1976-10-21
GB1364555A (en) 1974-08-21
CA952763A (en) 1974-08-13
FR2109977A5 (da) 1972-05-26
MY110485A (en) 1985-12-31
ATA865271A (de) 1975-04-15
JPS5020738B1 (da) 1975-07-17
BE773774A (fr) 1972-01-31
NL7114022A (da) 1972-04-17
AT327284B (de) 1976-01-26
CH529645A (de) 1972-10-31
DK147471C (da) 1985-03-25
DE2149871A1 (de) 1972-04-20
ZA716707B (en) 1972-06-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AEROBUS DEVELOPMENT LTD., BAARER STRASSE 112 CH-63

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MULLER, GERHARD;REEL/FRAME:004281/0940

Effective date: 19840605