US3887022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway vehicle-load measuring method and device
Assignee: DSO BULGARSKI DARJAVNI JELEZNITZI
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Filing: 1973-08-16
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Granted: 1975-06-03
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Expires: 1993-08-16
Abstract
Abstract The load of a railroad car is measured by placing the base of a measuring device upon the flange of the track and lifting the lower leg of a U-shaped member upwardly to bring the upper leg of this member into engagement with the vehicle wheel. A lever is fulcrumed on the lower leg and has one side biased by the free upper arm while the other side acts upon a meter displaying the load.
Inventors
- 👤 Tzvyatko Penchev Stanev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:58
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/08; G01G19/00; G01G19/02; G01G19/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
An apparatus for measuring the load of a vehicle wheel, comprising a support, a U-shaped shackle on said support having a lower arm and an upper arm, said arms being relatively deflectable, a crankshaft journaled on said support and having an eccentric portion received between said arms, a bushing fixed to the lower arm and receiving said eccentric portion, a rocker arm fulcrumed on said bushing and having one end engaged by the upper arm of said shackle, a compressive-force guage on said upper arm engaging another end of said rocker arm, and a manual lever connected to said shaft for raising said lower arm, thereby bringing said upper arm into engagement with said wheel and causing relative deflection of said upper and lower arms and rotation of said rocker arm.
Claim 2
Independent Claim
131 words
An apparatus for measuring the load of a vehicle wheel, comprising a support, a U-shaped shackle on said support having a lower arm and an upper arm, said arms being relatively deflectable, a crankshaft journaled on said support and having an eccentric portion received between said arms, a bushing fixed to the lower arm and receiving said eccentric portion, a rocker arm fulcrumed on said bushing and having one end engaged by the upper arm of said shackle, a compressive-force guage on said upper arm engaging another end of said rocker arm, and a manual lever connected to said shaft for raising said lower arm, thereby bringing said upper arm into engagement with said wheel and causing relative deflection of said upper and lower arms and rotation of said rocker arm.
Claim 3
Independent Claim
131 words
An apparatus for measuring the load of a vehicle wheel, comprising a support, a U-shaped shackle on said support having a lower arm and an upper arm, said arms being relatively deflectable, a crankshaft journaled on said support and having an eccentric portion received between said arms, a bushing fixed to the lower arm and receiving said eccentric portion, a rocker arm fulcrumed on said bushing and having one end engaged by the upper arm of said shackle, a compressive-force guage on said upper arm engaging another end of said rocker arm, and a manual lever connected to said shaft for raising said lower arm, thereby bringing said upper arm into engagement with said wheel and causing relative deflection of said upper and lower arms and rotation of said rocker arm.
Claim 4
Independent Claim
131 words
An apparatus for measuring the load of a vehicle wheel, comprising a support, a U-shaped shackle on said support having a lower arm and an upper arm, said arms being relatively deflectable, a crankshaft journaled on said support and having an eccentric portion received between said arms, a bushing fixed to the lower arm and receiving said eccentric portion, a rocker arm fulcrumed on said bushing and having one end engaged by the upper arm of said shackle, a compressive-force guage on said upper arm engaging another end of said rocker arm, and a manual lever connected to said shaft for raising said lower arm, thereby bringing said upper arm into engagement with said wheel and causing relative deflection of said upper and lower arms and rotation of said rocker arm.
Claim 5
Dependent Claim
20 words
The apparatus defined in claim 1 wherein said upper arm is provided with a wheel-engaging edge of semicircular cross section.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |