US3746182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillation damping arrangement for the load carrier of a hoist
Assignee: Individual
•
Filing: 1971-07-01
•
Granted: 1973-07-17
•
Expires: 1991-07-01
Abstract
Abstract Oscillation of a load carrier on a travelling hoist in the direction of hoist travel is damped or suppressed by a stabilizing cable whose ends are wound on respective sections of the cable drum assemblies at the fore and aft ends of the hoist platform, while the central portion of the stabilizing cable is trained, in sequence, over a reversing guide pulley on the load carrier, a resiliently mounted pulley on the platform, and another reversing pulley on the load carrier. The central portion of the stabilizing cable diverges in a vertical plane parallel to the direction of hoist travel from the two pulleys on the load carrier toward the platform so that the frictionally engaged guide pulleys turn when the load carrier oscillates horizontally in the vertical plane. The pulley mounted on the platform is provided with a friction brake which impedes or suppresses its rotary movement, and thereby impedes or suppresses horizontal oscillation of the load carrier.
Inventors
- 👤 H Tax
- 👤 R Franke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:57
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/04; B66C13/06
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
8 words
THIRD AND FOURTH CABLE DRUMS ON SAID SUPPORT,
Claim 2
Dependent Claim
8 words
THIRD AND FOURTH CABLE DRUMS ON SAID SUPPORT,
Claim 3
Dependent Claim
12 words
A FIRST CABLE DRUM AND A SECOND CABLE DRUM ON SAID SUPPORT,
Claim 4
Dependent Claim
12 words
A FIRST CABLE DRUM AND A SECOND CABLE DRUM ON SAID SUPPORT,
Claim 5
Dependent Claim
11 words
DRIVE MEANS FOR SIMULTANEOUSLY TURNING SAID DRUMS ABOUT THE AXES THEREOF,
Claim 6
Dependent Claim
11 words
DRIVE MEANS FOR SIMULTANEOUSLY TURNING SAID DRUMS ABOUT THE AXES THEREOF,
Claim 7
Dependent Claim
37 words
A STABILIZING CABLE HAVING TWO END PORTIONS RESPECTIVELY WOUND ON SAID THIRD AND FOURTH DRUMS AND A CENTRAL PORTION CONNECTING SAID END PORTIONS, RESPECTIVE PARTS OF SAID CENTRAL PORTION DIVERGING FROM SAID LOAD CARRIER TOWARD SAID SUPPORT,
Claim 8
Dependent Claim
37 words
A STABILIZING CABLE HAVING TWO END PORTIONS RESPECTIVELY WOUND ON SAID THIRD AND FOURTH DRUMS AND A CENTRAL PORTION CONNECTING SAID END PORTIONS, RESPECTIVE PARTS OF SAID CENTRAL PORTION DIVERGING FROM SAID LOAD CARRIER TOWARD SAID SUPPORT,
Claim 9
Dependent Claim
21 words
In an arrangement as set forth in claim 1, said hoisting cables being spaced from said stabilizing cable in opposite directions.
Claim 10
Dependent Claim
37 words
a stabilizing cable having two end portions respectively wound on said third and fourth drums and a central portion connecting said end portions, respective parts of said central portion diverging from said load carrier toward said support,
Claim 11
Dependent Claim
37 words
a stabilizing cable having two end portions respectively wound on said third and fourth drums and a central portion connecting said end portions, respective parts of said central portion diverging from said load carrier toward said support,
Claim 12
Dependent Claim
11 words
drive means for simultaneously turning said drums about the axes thereof,
Claim 13
Dependent Claim
11 words
drive means for simultaneously turning said drums about the axes thereof,
Claim 14
Dependent Claim
40 words
movably mounted guide pulley means guiding said central portion in a direction from said third drum to said load carrier and thence toward said fourth drum and including a plurality of rotatably mounted guide pulleys frictionally engaging said stabilizing cable,
Claim 15
Dependent Claim
40 words
movably mounted guide pulley means guiding said central portion in a direction from said third drum to said load carrier and thence toward said fourth drum and including a plurality of rotatably mounted guide pulleys frictionally engaging said stabilizing cable,
Claim 16
Dependent Claim
47 words
two hoisting cables wound on said cable drums respectively and having respective parts depending from said support and attached to said portions respectively for raising and lowering said carrier during the turning of said drums; and d. stabilizing means for impeding said movement of said carrier including:
Claim 17
Dependent Claim
47 words
two hoisting cables wound on said cable drums respectively and having respective parts depending from said support and attached to said portions respectively for raising and lowering said carrier during the turning of said drums; and d. stabilizing means for impeding said movement of said carrier including:
Claim 18
Dependent Claim
31 words
In an arrangement as set forth in claim 1, said motion transmitting means fixedly connecting said first and second drums to said third and fourth drums respectively for joint, coaxial rotation.
Claim 19
Dependent Claim
40 words
MOVABLY MOUNTED GUIDE PULLEY MEANS GUIDING SAID CENTRAL PORTION IN A DIRECTION FROM SAID THIRD DRUM TO SAID LOAD CARRIER AND THENCE TOWARD SAID FOURTH DRUM AND INCLUDING A PLURALITY OF ROTATABLY MOUNTED GUIDE PULLEYS FRICTIONALLY ENGAGING SAID STABILIZING CABLE,
Claim 20
Dependent Claim
40 words
MOVABLY MOUNTED GUIDE PULLEY MEANS GUIDING SAID CENTRAL PORTION IN A DIRECTION FROM SAID THIRD DRUM TO SAID LOAD CARRIER AND THENCE TOWARD SAID FOURTH DRUM AND INCLUDING A PLURALITY OF ROTATABLY MOUNTED GUIDE PULLEYS FRICTIONALLY ENGAGING SAID STABILIZING CABLE,
Claim 21
Dependent Claim
47 words
TWO HOISTING CABLES WOUND ON SAID CABLE DRUMS RESPECTIVELY AND HAVING RESPECTIVE PARTS DEPENDING FROM SAID SUPPORT AND ATTACHED TO SAID PORTIONS RESPECTIVELY FOR RAISING AND LOWERING SAID CARRIER DURING THE TURNING OF SAID DRUMS; AND D. STABILIZING MEANS FOR IMPEDING SAID MOVEMENT OF SAID CARRIER INCLUDING:
Claim 22
Dependent Claim
47 words
TWO HOISTING CABLES WOUND ON SAID CABLE DRUMS RESPECTIVELY AND HAVING RESPECTIVE PARTS DEPENDING FROM SAID SUPPORT AND ATTACHED TO SAID PORTIONS RESPECTIVELY FOR RAISING AND LOWERING SAID CARRIER DURING THE TURNING OF SAID DRUMS; AND D. STABILIZING MEANS FOR IMPEDING SAID MOVEMENT OF SAID CARRIER INCLUDING:
Claim 23
Dependent Claim
16 words
YIELDABLY RESILIENT TENSIONING MEANS COOPERATING WITH SAID GUIDE PULLEY MEANS TO KEEP SAID CENTRAL PORTION TAUT,
Claim 24
Dependent Claim
16 words
YIELDABLY RESILIENT TENSIONING MEANS COOPERATING WITH SAID GUIDE PULLEY MEANS TO KEEP SAID CENTRAL PORTION TAUT,
Claim 25
Dependent Claim
39 words
In an arrangement as set forth in claim 1, said tensioning means including mounting means movably mounting said one guide pulley on said support, and means biasing said one guide pulley in a direction to tension said central portion.
Claim 26
Dependent Claim
16 words
yieldably reSilient tensioning means cooperating with said guide pulley means to keep said central portion taut,
Claim 27
Dependent Claim
16 words
yieldably reSilient tensioning means cooperating with said guide pulley means to keep said central portion taut,
Claim 28
Dependent Claim
96 words
motion transmitting means connecting said third and fourth drums to said first and second drums, said motion transmitting means rotating said third and fourth drums during raising of said load carrier for shortening said stabilizing cable, and for lengthening said stabilizing cable during lowering of said load, said third and fourth drums being rotated at respective rates to substantially prevent rotation of one of said guide pulleys by the frictionally engaged stabilizing cable in the absence of said movement of said carrier while permitting rotation of said one pulley during said movement of said carrier, and
Claim 29
Dependent Claim
96 words
motion transmitting means connecting said third and fourth drums to said first and second drums, said motion transmitting means rotating said third and fourth drums during raising of said load carrier for shortening said stabilizing cable, and for lengthening said stabilizing cable during lowering of said load, said third and fourth drums being rotated at respective rates to substantially prevent rotation of one of said guide pulleys by the frictionally engaged stabilizing cable in the absence of said movement of said carrier while permitting rotation of said one pulley during said movement of said carrier, and
Claim 30
Dependent Claim
79 words
In an arrangement as set forth in claim 4, said plurality of guide pulleys including a second guide pulley and a third guide pulley, said second and third guide pulleys being attached to said load carrier, said stabilizing cable being trained sequentially over said second guide pulley, said one guide pulley, and said third guide pulley, said diverging parts of said stabilizing cable extending from said second and third guide pulleys respectively toward said third and fourth cable drums.
Claim 31
Dependent Claim
96 words
MOTION TRANSMITTING MEANS CONNECTING SAID THIRD AND FOURTH DRUMS TO SAID FIRST AND SECOND DRUMS, SAID MOTION TRANSMITTING MEANS ROTATING SAID THIRD AND FOURTH DRUMS DURING RAISING OF SAID LOAD CARRIER FOR SHORTENING SAID STABILIZING CABLE, AND FOR LENGTHENING SAID STABILIZING CABLE DURING LOWERING OF SAID LOAD, SAID THIRD AND FOURTH DRUMS BEING ROTATED AT RESPECTIVE RATES TO SUBSTANTIALLY PREVENT ROTATION OF ONE OF SAID GUIDE PULLEYS BY THE FRICTIONALLY ENGAGED STABILIZING CABLE IN THE ABSENCE OF SAID MOVEMENT OF SAID CARRIER WHILE PERMITTING ROTATION OF SAID ONE PULLEY DURING SAID MOVEMENT OF SAID CARRIER, AND
Claim 32
Dependent Claim
96 words
MOTION TRANSMITTING MEANS CONNECTING SAID THIRD AND FOURTH DRUMS TO SAID FIRST AND SECOND DRUMS, SAID MOTION TRANSMITTING MEANS ROTATING SAID THIRD AND FOURTH DRUMS DURING RAISING OF SAID LOAD CARRIER FOR SHORTENING SAID STABILIZING CABLE, AND FOR LENGTHENING SAID STABILIZING CABLE DURING LOWERING OF SAID LOAD, SAID THIRD AND FOURTH DRUMS BEING ROTATED AT RESPECTIVE RATES TO SUBSTANTIALLY PREVENT ROTATION OF ONE OF SAID GUIDE PULLEYS BY THE FRICTIONALLY ENGAGED STABILIZING CABLE IN THE ABSENCE OF SAID MOVEMENT OF SAID CARRIER WHILE PERMITTING ROTATION OF SAID ONE PULLEY DURING SAID MOVEMENT OF SAID CARRIER, AND
Claim 33
Dependent Claim
17 words
In an arrangement as set forth in claim 4, additional brake means for arresting said cable drums.
Claim 34
Dependent Claim
14 words
brake means cooperating with said one guide pulley for impeding rotation of the same.
Claim 35
Dependent Claim
14 words
brake means cooperating with said one guide pulley for impeding rotation of the same.
Claim 36
Dependent Claim
14 words
BRAKE MEANS COOPERATING WITH SAID ONE GUIDE PULLEY FOR IMPEDING ROTATION OF THE SAME.
Claim 37
Dependent Claim
14 words
BRAKE MEANS COOPERATING WITH SAID ONE GUIDE PULLEY FOR IMPEDING ROTATION OF THE SAME.
Claim 38
Dependent Claim
25 words
In an arrangement as set forth in claim 4, means for varying the braking force exerted by said brake means on said one guide pulley.
Claim 39
Dependent Claim
45 words
In an arrangement as set forth in claim 7, said brake means including a rotary brake member operatively connected to said one guide pulley for simultaneous rotation, a stationary brake member secured to said support, and biasing means biasing said brake members into frictional engagement.
References Cited (Backward Citations)
US3179259A
Cited
US3308966A
Cited
GB1098906A
Cited
US3476263A
Cited
NL6806017A
Cited
US3532324A
Cited
US3653518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |