US3955844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane cable attachment
Assignee: BAUMATIC SA
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Filing: 1974-08-05
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Granted: 1976-05-11
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Expires: 1994-08-05
Abstract
Abstract A crane cable attachment for delivering and taking up loads through openings in walls and the like comprises a generally horizontal rail suspended from the crane cable. A load carrying carriage is mounted for movement along the rail, between a lifting position underneath the cable and a loading and unloading position towards one end of the rail. An elongate prop is pivotally connected to this end of the rail for movement between a position in which it may rest on the ground where a load is to be delivered or taken up and a lifting position folded under the rail. A counter-weight is provided at the other end of the rail to maintain it horizontal when both the prop and carriage are in the lifting positions.
Inventors
- 👤 Pierre M. T. de Castella
- 👤 Rene A. Fichter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:10
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; B; B66; B66C; B66C1/00; B66C1/10; B66C1/105
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
120 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; means for selectively elongating and shortening said prop, particularly during loading and unloading said carriage.
Claim 2
Dependent Claim
120 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; means for selectively elongating and shortening said prop, particularly during loading and unloading said carriage.
Claim 3
Dependent Claim
26 words
A crane cable attachment as claimed in claim 1, comprising means for retaining and holding the carriage in at least one predetermined location along the rail.
Claim 4
Dependent Claim
18 words
A crane cable attachment as claimed in claim 1, comprising means for moving the carriage along the rail.
Claim 5
Dependent Claim
24 words
A crane cable attachment as claimed in claim 3, in which said moving means comprise a cable or chain driven by a pulley block.
Claim 6
Dependent Claim
31 words
A crane cable attachment as claimed in claim 1, comprising a counter-weight for maintaining the the suspended rail horizontal when both the carriage and the prop are in the lifting position.
Claim 7
Dependent Claim
131 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; said prop comprising two tubes slidably mounted in one another, and means for locking the tubes in selected positions to adjust the height of the prop.
Claim 8
Dependent Claim
131 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; said prop comprising two tubes slidably mounted in one another, and means for locking the tubes in selected positions to adjust the height of the prop.
Claim 9
Dependent Claim
128 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally paralle to the rail; said prop comprising a jack pivotally connected to the rail, the jack being operatively connected with an elongate rack provided with a foot.
Claim 10
Dependent Claim
128 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally paralle to the rail; said prop comprising a jack pivotally connected to the rail, the jack being operatively connected with an elongate rack provided with a foot.
Claim 11
Dependent Claim
136 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; said prop comprising a hydraulic cylinder, a piston slidably mounted in the cylinder, and a valve controlling the introduction of liquid in the cylinder to adjust the height of the prop.
Claim 12
Dependent Claim
136 words
A crane cable attachment comprising a rail, means for suspending the rail transverse to a crane cable, a load-carrying carriage mounted for movement along the rail between a lifting position disposed in extension of a cable supporting the rail and a loading and unloading position towards one end of the rail, and an elongate prop pivotally connected to said one end of the rail for movement between a position protruding from the rail to be able to take support on a base surface where a load is to be delivered or taken up and a folded-away lifting position against and generally parallel to the rail; said prop comprising a hydraulic cylinder, a piston slidably mounted in the cylinder, and a valve controlling the introduction of liquid in the cylinder to adjust the height of the prop.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |