US3822834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable transfer apparatus
Assignee: Indal Technologies Inc
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Filing: 1973-05-17
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Granted: 1974-07-09
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Expires: 1993-05-17
Abstract
Abstract A cable transfer apparatus for transferring cable from a driven rotatable drum to a static drum, includes a rotatable arm mounted on the same shaft with the rotatable and static drums, and with a transfer sheave at the outer end of the arm. The transfer sheave is mounted so as to accommodate cable being transferred between the rotatable and static drums. The arm is arranged with driving means therefor so that when the rotatable drum is driven in a first direction, the arm tends to not rotate; and when the rotatable drum is driven in the second direction, the arm tends also to rotate in that second direction at the same rotational speed. Friction means co-act between the arm and the rotatable drum so that when the drum is driven in the first direction and cable is being transferred between the driven and static drums, the friction means acts to maintain tension in the cable and to drive the arm and sheave to rotate about the shaft in the first direction; and when the rotatable drum is driven in the second direction, the friction means acts together with the tension in the cable being transferred between the drums to retard the speed of rotation of the arm and sheave about the shaft. Three embodiments are shown. In the first embodiment, a plate is provided with clutches between the plate and the rotatable drum and between the plate and the shaft; and the rotatable arm is frictionally coupled to the plate by friction pads. In the second embodiment a bearing sleeve is provided, together with ratchet and pawl means between the bearing sleeve and each of the rotatable and static drums. The rotatable arm is frictionally coupled to the bearing sleeve. In the third embodiment, a pair of opposed clutch assemblies is provided, each having a friction clutch and an overrunning clutch; and having a toothed belt extending from one of the rotatable or static drums to one of the clutch assemblies so that it overruns in one direction and drives against the friction clutch in the other direction of rotation of the rotatable drum, and vice versa.
Inventors
- 👤 R Fjarlie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:59
CPC Classifications
H; H02; H02G; H02G11/00; H02G11/02; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4449; B65H75/4452
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
412 words
In an apparatus for transferring cable between a driven rotatable drum and an undriven static drum, where said drums are positioned along a common axis, and where the axis of rotation of said rotatable drum is substantially co-extensive with said common axis; the transfer of cable being such that cable is transferred from said static drum to said rotatable drum when said rotatable Drum is driven in a first direction of rotation, and from said rotatable drum to said static drum when said rotatable drum is driven in a second, reverse, direction of rotation; the combination comprising: a. first arm means extending in a direction substantially perpendicular to said common axis; b. transfer sheave means mounted for rotation at the outer end of said first arm means, the radial plane of said transfer sheave means being substantially parallel to said common axis; c. said transfer sheave means being mounted so as to accommodate cable as it is being transferred between said rotatable drum and said static drum, and being positioned so that when said rotatable drum is driven in said first direction cable tends to reel from said static drum onto said rotatable drum; d. driving means for said first arm means including means mounting said first arm means for rotation in either direction about said axis of rotation of said rotatable drum; said driving means being such that when said rotatable drum is driven in said first direction of rotation said first arm means tends to not rotate about said common axis, and when said rotatable drum is driven in said secod direction of rotation said first arm means also tends to rotate in said second direction at the same rotational speed as the rotation of said rotatable drum; and e. friction means co-acting between said first arm means and said rotatable drum such that when said rotatable drum is driven in said first direction of rotation, said friction means acts to maintain tension in said cable passing over said transfer sheave mounted at the outer end of said first arm means; and to cause said first arm means to rotate about said axis of rotation in said first direction; and such that when said rotatable drum is driven in said second direction of rotation, said friction means acts together with the tension in said cable passing over said transfer sheave to retard the speed of rotation in said second direction of said first arm means about said axis of rotation.
Claim 2
Dependent Claim
412 words
In an apparatus for transferring cable between a driven rotatable drum and an undriven static drum, where said drums are positioned along a common axis, and where the axis of rotation of said rotatable drum is substantially co-extensive with said common axis; the transfer of cable being such that cable is transferred from said static drum to said rotatable drum when said rotatable Drum is driven in a first direction of rotation, and from said rotatable drum to said static drum when said rotatable drum is driven in a second, reverse, direction of rotation; the combination comprising: a. first arm means extending in a direction substantially perpendicular to said common axis; b. transfer sheave means mounted for rotation at the outer end of said first arm means, the radial plane of said transfer sheave means being substantially parallel to said common axis; c. said transfer sheave means being mounted so as to accommodate cable as it is being transferred between said rotatable drum and said static drum, and being positioned so that when said rotatable drum is driven in said first direction cable tends to reel from said static drum onto said rotatable drum; d. driving means for said first arm means including means mounting said first arm means for rotation in either direction about said axis of rotation of said rotatable drum; said driving means being such that when said rotatable drum is driven in said first direction of rotation said first arm means tends to not rotate about said common axis, and when said rotatable drum is driven in said secod direction of rotation said first arm means also tends to rotate in said second direction at the same rotational speed as the rotation of said rotatable drum; and e. friction means co-acting between said first arm means and said rotatable drum such that when said rotatable drum is driven in said first direction of rotation, said friction means acts to maintain tension in said cable passing over said transfer sheave mounted at the outer end of said first arm means; and to cause said first arm means to rotate about said axis of rotation in said first direction; and such that when said rotatable drum is driven in said second direction of rotation, said friction means acts together with the tension in said cable passing over said transfer sheave to retard the speed of rotation in said second direction of said first arm means about said axis of rotation.
Claim 3
Dependent Claim
33 words
The apparatus of claim 1 wherein said first arm means and said rotatable drum are each mounted for rotation on a static shaft, and said static drum is secured to said static shaft.
Claim 4
Dependent Claim
124 words
The apparatus of claim 2 where said driving means for said first arm means includes: a bearing sleeve mounted for rotation on said static shaft and on which said rotatable drum is rotatably mounted; first ratchet and pawl means mounted between said bearing sleeve and said rotatable drum to preclude relative rotation therebetween when said rotatable drum is driven in said second direction; second ratchet and pawl means mounted between said bearing sleeve and said static drum to preclude relative rotation therebetween when said rotatable drum is driven in said first direction; and means rotatably supporting said first arm means on said bearing sleeve; said friction means comprising a friction coupling between said means rotatably supporting said first arm means and said bearing sleeve.
Claim 5
Dependent Claim
29 words
The apparatus of claim 3 where said first and second ratchet and pawl means are mounted with said pawls supported on said rotatable drum and said static drum, respectively.
Claim 6
Dependent Claim
25 words
The apparatus of claim 3 including means for adjusting the friction coupling between said means rotatably supporting said first arm means and said bearing sleeve.
Claim 7
Dependent Claim
128 words
The apparatus of claim 2 where said driving means for said first arm means includes: plate means rotatably mounted on said static shaft and extending radially outwardly therefrom; first clutch means between said rotatable drum and said plate means for locking said plate means for rotation with said rotatable drum when said rotatable drum is driven in said second direction; and second clutch means between said plate means and said static shaft for locking said plate means to said shaft to preclude rotation thereof when said rotatable drum is driven in said first direction; and means rotatably supporting said first arm means on saId static shaft; said friction means comprising pad means frictionally coupled to said plate means and secured to said first arm means for rotation therewith.
Claim 8
Dependent Claim
20 words
The apparatus of claim 6 including means for adjusting the friction coupling between said pad means and said plate means.
Claim 9
Dependent Claim
144 words
The apparatus of claim 2 where said driving means for said first arm means includes: first and second clutch means mounted on first and second extensions of said first arm means, respectively, each including friction clutch means and overrunning clutch means; said first and second clutch means being mounted for frictional and overrunning operation in opposite directions to one another; first sprocket means mounted with each of said rotatable drum and said static drum, a timing belt between said first sprocket and said first clutch means and said second sprocket on said rotatable drum, and a timing belt between said first sprocket on said second clutch means and said second sprocket on said static drum; and means rotatably supporting said first arm means on said static shaft; said friction means comprising said friction clutch portions of each of said first and second clutch means.
Claim 10
Dependent Claim
43 words
The apparatus of claim 2, further including: winch drum means mounted exteriorly of said rotatable and static drums and said first arm means; said winch drum being secured in driving relationship to said rotatable drum and being rotatably mounted on said static shaft.
Claim 11
Dependent Claim
19 words
The apparatus of claim 9 where said cable is adapted for the electrical transfer of signal voltages impressed thereon.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |