US4015798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fleet angle system and method of level winding
Assignee: United States Department of the Navy
•
Filing: 1976-02-17
•
Granted: 1977-04-05
•
Expires: 1996-02-17
Abstract
Abstract A pivoted frame assembly is guided back and forth across a winch drum by annterconnected double diamond lead screw. Sheaves journaled on a frame assembly feed the cable or a hydrophone array in a manner so as not to create crushing stresses on the cable or side load forces during deployment and retrieval. Because of the physical disposition of the framework and sheaves with respect to the winch drum and their mechanical coaction with other related structural elements, the fleeting sheave is closer than contemporary units so that the overall structure is more compact.
Inventors
- 👤 John S. Benya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:41
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/36; B66D1/38
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
299 words
An apparatus for level winding several layers of a cable on a winch drum which avoids the creation of undue stresses thereon comprising: means for supporting the winch drum to permit the winding and unwinding of the cable thereon; means mounted on the supporting means for pivoting about an axis and having an extension disposed to be pivoted about the pivot axis across the width of the drum; means carried on the supporting means for moving the extension of the pivoting means across the width of the winch drum; means connected to the extension of the pivoting means and the moving means for ensuring the travel of the extension across the width of the winch drum, the ensuring means includes a drive pin secured to the moving means and extending toward the extension of the pivoting means, said drive pin has its longitudinal axis coplanar with the axis of the first sheave; means carried on the pivoting means for orientating the cable where it leaves the winch drum and where it is played out from the apparatus substantially parallel to the pivot axis of the pivoting means, the orientating means includes a first sheave journaled on the extension of the pivoting means adjacent the winch drum and a second sheave journaled on the extension of the pivoting means adjacent the pivot axis, the first and second sheaves are positioned with repsect to each other on the extension to locate the cable in a coplanar relationship with respect to the pivot axis; means coupled between the winch drum and the moving means for controlling the rate at which the extension of the pivoting means moves across the width of the drum; and means carried on the pivoting means for counterweighting the extension of the pivoting means and the orientating means.
Claim 2
Independent Claim
299 words
An apparatus for level winding several layers of a cable on a winch drum which avoids the creation of undue stresses thereon comprising: means for supporting the winch drum to permit the winding and unwinding of the cable thereon; means mounted on the supporting means for pivoting about an axis and having an extension disposed to be pivoted about the pivot axis across the width of the drum; means carried on the supporting means for moving the extension of the pivoting means across the width of the winch drum; means connected to the extension of the pivoting means and the moving means for ensuring the travel of the extension across the width of the winch drum, the ensuring means includes a drive pin secured to the moving means and extending toward the extension of the pivoting means, said drive pin has its longitudinal axis coplanar with the axis of the first sheave; means carried on the pivoting means for orientating the cable where it leaves the winch drum and where it is played out from the apparatus substantially parallel to the pivot axis of the pivoting means, the orientating means includes a first sheave journaled on the extension of the pivoting means adjacent the winch drum and a second sheave journaled on the extension of the pivoting means adjacent the pivot axis, the first and second sheaves are positioned with repsect to each other on the extension to locate the cable in a coplanar relationship with respect to the pivot axis; means coupled between the winch drum and the moving means for controlling the rate at which the extension of the pivoting means moves across the width of the drum; and means carried on the pivoting means for counterweighting the extension of the pivoting means and the orientating means.
Claim 3
Dependent Claim
70 words
An apparatus according to claim 1 in which the ensuring means further includes a ball and socket assembly mounted in a split bracket on the extension of the pivoting means and being oriented for slidably engaging the drive pin through an axis of the ball and socket assembly to permit reciprocal motion by the pin and lateral pivotal motion by the pin coplanar with the axis of the first sheave.
Claim 4
Dependent Claim
36 words
An apparatus according to claim 2 in which the moving means includes a double diamond lead screw reaching across the width of the winch drum and a pawl engaging both the screw and the drive pin.
Claim 5
Dependent Claim
34 words
An apparatus according to claim 3 in which the controlling means is a timing belt reduction drive interconnection the axis of the winch drum and the double diamond lead screw of the moving means.
Claim 6
Dependent Claim
40 words
An apparatus according to claim 4 in which the pivoting means has an essentially triangularly shaped frame assembly mounting the first sheave on its apex and the second sheave mounted near the base both being coplanar with the pivot axis.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |