US3653258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring loads in ropes
Assignee: Fulmer Research Institute Ltd
•
Filing: 1970-11-04
•
Granted: 1972-04-04
•
Expires: 1990-11-04
Abstract
Abstract Apparatus for measuring the loading of a rope comprising three rope engagement members spaced along a resilient support for engaging opposite sides of the rope, one of said members being carried on a carrier and being displaceable by eccentric pivotation or sliding on the carrier, upon movement of an adjustment member, to deflect the rope, means being provided for measuring distortion of the resilient support in response to the rope deflection.
Inventors
- 👤 Henry King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:43
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/04; G01L5/10; G01L5/107; G01L5/102
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
220 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, first and second engagement members spaced apart along said resilient support for engaging one side of said elongate member, a carrier member pivotable relative to said resilient support about a first axis substantially midway between said first and second engagement members along said resilient support, a third engagement member mounted on said carrier member and pivotable relative to said support about a second axis for engaging the opposite side of said elongate member, said carrier member being pivotable about said first axis from a first position, in which said deFlector is fully released into a second position, in which said deflector is fully displaced by the maximum possible distance towards said elongate member for deflecting said elongate member, said first and second axes being aligned with the reaction force exerted by said elongate member on said third displacement member when the latter is in said second position, means for effecting said pivotation of said carrier member, and means for measuring distortion of said resilient support on movement of said displaceable deflector into said second position, said apparatus being open at one side thereof to allow engagement of said engagement members with said elongate member by relative laterial movement of said apparatus and said elongate member.
Claim 2
Independent Claim
220 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, first and second engagement members spaced apart along said resilient support for engaging one side of said elongate member, a carrier member pivotable relative to said resilient support about a first axis substantially midway between said first and second engagement members along said resilient support, a third engagement member mounted on said carrier member and pivotable relative to said support about a second axis for engaging the opposite side of said elongate member, said carrier member being pivotable about said first axis from a first position, in which said deFlector is fully released into a second position, in which said deflector is fully displaced by the maximum possible distance towards said elongate member for deflecting said elongate member, said first and second axes being aligned with the reaction force exerted by said elongate member on said third displacement member when the latter is in said second position, means for effecting said pivotation of said carrier member, and means for measuring distortion of said resilient support on movement of said displaceable deflector into said second position, said apparatus being open at one side thereof to allow engagement of said engagement members with said elongate member by relative laterial movement of said apparatus and said elongate member.
Claim 3
Dependent Claim
21 words
An apparatus as set forth in claim 1, wherein said means for effecting pivotation comprise a handle fixed to said carrier.
Claim 4
Dependent Claim
47 words
An apparatus as set forth in claim 1, further comprising an arm secured by one end thereof to the support and extending along and spaced from the support, said distortion measuring means comprising a mechanical gauge acting between said support and the free end of said arm.
Claim 5
Dependent Claim
44 words
An apparatus as set forth in claim 1, wherein said first, second and third engagement members each comprise a freely rotatable roller, means being provided for releasably securing said rollers to said support, whereby said rollers are readily replaceable by rollers of different dimensions.
Claim 6
Dependent Claim
16 words
An apparatus as set forth in claim 1, wherein said pivotation means comprises an electric motor.
Claim 7
Dependent Claim
19 words
An apparatus as claimed in claim 1, wherein said pivotation means comprises a piston and cylinder and a crank.
Claim 8
Dependent Claim
25 words
An apparatus as claimed in claim 1, wherein said pivotation means comprises a handwheel, and a worm and worm connecting said handwheel to said carrier.
Claim 9
Independent Claim
126 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, three engagement members spaced apart along said resilient support for engaging said elongate member, a carrier mounted on said support, one of said engagement members comprising a displaceable deflector member mounted on said carrier, a surface on said carrier engaging said deflector member, means mounting said carrier for movement relative to said deflector in a direction inclined to said surface, and means for effecting the movement of said carrier in said direction to move said deflector member from a released position and to an engaged position for deflecting said resilient support, and means for measuring the deflection of said resilient support as an indication of the loading of said elongate member.
Claim 10
Independent Claim
126 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, three engagement members spaced apart along said resilient support for engaging said elongate member, a carrier mounted on said support, one of said engagement members comprising a displaceable deflector member mounted on said carrier, a surface on said carrier engaging said deflector member, means mounting said carrier for movement relative to said deflector in a direction inclined to said surface, and means for effecting the movement of said carrier in said direction to move said deflector member from a released position and to an engaged position for deflecting said resilient support, and means for measuring the deflection of said resilient support as an indication of the loading of said elongate member.
Claim 11
Dependent Claim
28 words
An apparatus as set forth in claim 8, wherein said means for effecting movement of said carrier comprise a manually rotable member in threaded engagement with said carrier.
Claim 12
Dependent Claim
19 words
An apparatus as claimed in claim 8, wherein the three rope engagement members each comprise a freely rotatable roller.
Claim 13
Dependent Claim
25 words
An apparatus as claimed in claim 10, wherein the rollers are replaceable by rollers of different dimensions for adapting the apparatus to different rope thicknesses.
Claim 14
Dependent Claim
16 words
An apparatus as claimed in claim 11, wherein the distortion measuring means comprise a mechanical gauge.
Claim 15
Dependent Claim
21 words
An apparatus as claimed in claim 12, wherein the mechanical gauge is mounted on an arm extending from the support member.
Claim 16
Dependent Claim
17 words
An apparatus as claimed in claim 13, wherein the arm is movably connected to the support member.
Claim 17
Dependent Claim
21 words
An apparatus as claimed in claim 8, wherein the measuring means comprise an electrical strain gauge connected to the resilient support.
Claim 18
Independent Claim
191 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, first and second engagement members spaced apart along said resilient support for engaging one side of said elongate member, a carrier member pivotable relative to said resilient support about a first axis substantially midway between said first and second engagement members along said resilient support, a thIrd engagement member mounted on said carrier member and pivotable relative to said support about a second axis for engaging the opposite side of said elongate member, said carrier member being pivotable about said first axis from a first position, in which said deflector is fully released into a second position, in which said deflector is fully displaced by the maximum possible distance towards said elongate member for deflecting said elongate member, means for effecting said pivotation of said carrier member, and means for measuring distortion of said resilient support on movement of said displaceable deflector into said second position, said apparatus being open at one side thereof to allow engagement of said engagement members with said elongate members by relative lateral movement of said apparatus and said elongate member.
Claim 19
Independent Claim
191 words
An apparatus for measuring the loading of an elongate member, comprising a resilient elongate support, first and second engagement members spaced apart along said resilient support for engaging one side of said elongate member, a carrier member pivotable relative to said resilient support about a first axis substantially midway between said first and second engagement members along said resilient support, a thIrd engagement member mounted on said carrier member and pivotable relative to said support about a second axis for engaging the opposite side of said elongate member, said carrier member being pivotable about said first axis from a first position, in which said deflector is fully released into a second position, in which said deflector is fully displaced by the maximum possible distance towards said elongate member for deflecting said elongate member, means for effecting said pivotation of said carrier member, and means for measuring distortion of said resilient support on movement of said displaceable deflector into said second position, said apparatus being open at one side thereof to allow engagement of said engagement members with said elongate members by relative lateral movement of said apparatus and said elongate member.
References Cited (Backward Citations)
US2183817A
Cited
US2200572A
Cited
US2319299A
Cited
US2471999A
Cited
US2795136A
Cited
US2986932A
Cited
US3310981A
Cited
US3398575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |