Patent US3744759A successfully refreshed from Google Patents.
US3744759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control for cable reel
Assignee: Eastern Rotorcraft Corp
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Filing: 1971-11-01
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Granted: 1973-07-10
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Expires: 1991-11-01
Abstract
Abstract A cable stored on a reel drum can be reeled out to any adjusted length within its limit to engage a load. The reel is supplied with control mechanism to allow locking the drum for load transfer between the cable and the reel at any adjusted position. The locking and unlocking is accomplished either by remote electrical control or by mechanical (manual) control at the reel. A manually operated safety lock located on the reel housing prevents inadvertent release of the locking mechanism during load carrying operations. Engagement of the safety lock automatically disconnects the electrical control while the safety lock is being used. The electrical actuator clutch is controlled to give proper phase engagement for correct synchronization with the mechanical control operation as well as to protect against undesired backdrive into the actuator.
Inventors
- 👤 A Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:24
CPC Classifications
B; B66; B66D; B66D5/00; B66D2700/00; B66D2700/03
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
192 words
A cable storage reel having a. a stationary housing assembly, b. a cable receiving drum mounted for rotation with respect to said housing, c. means for anchoring a cable terminal to said drum to provide transfer of a cable load to said drum, d. mechanism for locking and unlocking said drum with respect to said housing to provide for transfer of load between said drum and said housing when the mechanism is locked and for movement of said reel for adjustment and rewind when the mechanism is unlocked, said mechanism including, 1. a ring member attached to said drum, 2. a locking element supported on said housing for limited movement with respect thereto, 3. a locking control shaft supported on the rotational axis of said drum by said housing to provide limited rotational movement with respect thereto, 4. control interconnections between said shaft and said element to cause movement of said element into and out of engagement with said ring member for locking and unlocking said drum, 5. a manual control member connected to one end of said shaft and 6. an electrical actuator connectible with the other end of said shaft.
Claim 2
Dependent Claim
192 words
A cable storage reel having a. a stationary housing assembly, b. a cable receiving drum mounted for rotation with respect to said housing, c. means for anchoring a cable terminal to said drum to provide transfer of a cable load to said drum, d. mechanism for locking and unlocking said drum with respect to said housing to provide for transfer of load between said drum and said housing when the mechanism is locked and for movement of said reel for adjustment and rewind when the mechanism is unlocked, said mechanism including, 1. a ring member attached to said drum, 2. a locking element supported on said housing for limited movement with respect thereto, 3. a locking control shaft supported on the rotational axis of said drum by said housing to provide limited rotational movement with respect thereto, 4. control interconnections between said shaft and said element to cause movement of said element into and out of engagement with said ring member for locking and unlocking said drum, 5. a manual control member connected to one end of said shaft and 6. an electrical actuator connectible with the other end of said shaft.
Claim 3
Dependent Claim
13 words
a locking element supported on said housing for limited movement with respect thereto,
Claim 4
Dependent Claim
13 words
a locking element supported on said housing for limited movement with respect thereto,
Claim 5
Dependent Claim
8 words
a shoe element movably supported on said housing,
Claim 6
Dependent Claim
8 words
a shoe element movably supported on said housing,
Claim 7
Dependent Claim
65 words
A reel construction in accordance with claim 1 in which said actuator has a drive shaft in alignment with said control shaft, clutch parts for transferring rotational movement from said actuator drive shaft to said control shaft, said clutch parts having arcuate projections shaped to allow said actuator shaft to move approximately one-half its total angular travel before engaging said control shaft to move it.
Claim 8
Dependent Claim
83 words
A reel construction in accordance with claim 1 wherein said actuator has a drive shaft in alignment with said control shaft, clutch parts for rotationally connecting said actuator drive shaft and said control shaft, said clutch parts being disengageable by relative axial movement of said control shaft and said actuator drive shaft, said clutch parts being shaped to permit engagement only when the control shaft and drive shaft are in compatible rotational position wherein each shaft is in the same phase of operation.
Claim 9
Dependent Claim
23 words
a locking control shaft supported on the rotational axis of said drum by said housing to provide limited rotational movement with respect thereto,
Claim 10
Dependent Claim
23 words
a locking control shaft supported on the rotational axis of said drum by said housing to provide limited rotational movement with respect thereto,
Claim 11
Dependent Claim
13 words
a radially disposed arm connected at its outer end to said shoe device,
Claim 12
Dependent Claim
13 words
a radially disposed arm connected at its outer end to said shoe device,
Claim 13
Dependent Claim
67 words
an eccentric device supported on the rotational axis of said drum and connected to the inner portion of said arm, rotational movement of the eccentric device in one direction causing outward extension of said arm to provide engagement of said shoe with said ring member, opposite rotational movement of said eccentric device causing retraction of said arm to cause disengagement of said shoe from said ring member,
Claim 14
Dependent Claim
67 words
an eccentric device supported on the rotational axis of said drum and connected to the inner portion of said arm, rotational movement of the eccentric device in one direction causing outward extension of said arm to provide engagement of said shoe with said ring member, opposite rotational movement of said eccentric device causing retraction of said arm to cause disengagement of said shoe from said ring member,
Claim 15
Dependent Claim
64 words
A reel construction in accordance with claim 1 in which said control shaft extends through said housing and is supported for limited axial movement, a handle being provided at the outer end of said control shaft for manually shifting said control shaft axially to disengage it from said electrical actuator and to permit manual rotation of said control shaft to locking and unlocking positions.
Claim 16
Dependent Claim
29 words
control interconnections between said shaft and said element to cause movement of said element into and out of engagement with said ring member for locking and unlocking said drum,
Claim 17
Dependent Claim
29 words
control interconnections between said shaft and said element to cause movement of said element into and out of engagement with said ring member for locking and unlocking said drum,
Claim 18
Dependent Claim
37 words
A reel construction in accordance with claim 4 in which an electrical indicating system is provided including a limit switch actuated by movement of one of said control interconnections to indicate the unlocked position of said drum.
Claim 19
Dependent Claim
12 words
a manual control member connected to one end of said shaft and
Claim 20
Dependent Claim
12 words
a manual control member connected to one end of said shaft and
Claim 21
Dependent Claim
30 words
a locking control shaft mounted on the axis of said drum and engaged with said eccentric device for simultaneous rotation therewith, one end of said shaft extending through said housing,
Claim 22
Dependent Claim
30 words
a locking control shaft mounted on the axis of said drum and engaged with said eccentric device for simultaneous rotation therewith, one end of said shaft extending through said housing,
Claim 23
Dependent Claim
14 words
a manual control handle connected to the outer end of said control shaft, and
Claim 24
Dependent Claim
14 words
a manual control handle connected to the outer end of said control shaft, and
Claim 25
Dependent Claim
11 words
an electrical actuator connectible with the other end of said shaft.
Claim 26
Dependent Claim
11 words
an electrical actuator connectible with the other end of said shaft.
Claim 27
Dependent Claim
91 words
A cable storage reel having a. a stationary housing assembly, b. a cable receiving drum mounted for rotation with respect to said housing, c. means for anchoring a cable terminal to said drum to provide transfer of A cable load to said drum, d. mechanism for locking and unlocking said drum with respect to said housing to provide for transfer of load between said drum and said housing when the mechanism is locked and for movement of said reel for adjustment and rewind when the mechanism is unlocked, said mechanism including
Claim 28
Dependent Claim
91 words
A cable storage reel having a. a stationary housing assembly, b. a cable receiving drum mounted for rotation with respect to said housing, c. means for anchoring a cable terminal to said drum to provide transfer of A cable load to said drum, d. mechanism for locking and unlocking said drum with respect to said housing to provide for transfer of load between said drum and said housing when the mechanism is locked and for movement of said reel for adjustment and rewind when the mechanism is unlocked, said mechanism including
Claim 29
Dependent Claim
45 words
A reel construction as in claim 6 in which there are a plurality of shoe elements, radially disposed arms and eccentric devices arranged in balanced relationship with respect to said ring member to provide simultaneous movement of the shoe elements relative to the ring member.
Claim 30
Dependent Claim
8 words
an electrical actuator engageable with said control shaft.
Claim 31
Dependent Claim
8 words
an electrical actuator engageable with said control shaft.
Claim 32
Dependent Claim
44 words
A reel construction as in claim 6 in which there is a pair of shoe elements, a pair of radially disposed arms and a pair of eccentric devices arranged in opposite relationship to give balanced engagement of the shoe elements with said ring member.
Claim 33
Dependent Claim
44 words
A reel construction as in claim 6 in which a rotatable disc is connected to said eccentric device for rotation therewith and a stop member is supported on said housing for engagement with said disc to limit the rotational range of said eccentric device.
Claim 34
Dependent Claim
49 words
A reel construction as in claim 9 in which a safety locking element is supported on said housing for movement with respect thereto, said locking element being movable to engage said disc when the disc is in its locked limit position, thereby providing against accidental release of the drum.
Claim 35
Dependent Claim
39 words
A reel construction as in claim 6 in which said ring member and said shoe element have engageable teeth, the shoe element being movable into and out of teeth engageable position, said teeth being symmetrical and pointed in shape.
Claim 36
Dependent Claim
39 words
A reel construction as in claim 6 in which said control shaft is shiftable axially to disengage the electrical actuator to allow independent manual operation and a spring member is provided to urge said shaft to actuator engaged position.
Claim 37
Dependent Claim
45 words
A reel construction as in claim 12 in which said control shaft incorporates a terminal clutch part and said actuator incorporates a mating clutch part, said parts being shaped to allow engagement only when the shaft and actuator are in the same phase of operation.
Claim 38
Dependent Claim
95 words
A reel construction as in claim 9 in which a safety locking element is supported on said housing for movement with respect thereto, said locking element being movable to engage said disc when the disc is in its locked limit position, thereby providing against accidental release of the drum, a limit switch is positioned to be actuated by said locking element when it is moved to engage said disc, said switch being constructed to provide for operating a ''''locked'''' signal and at the same time to provide for interruption of the electrical actuator unlocking circuit.
References Cited (Backward Citations)
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US3116892A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |