GB1532417A - Friction measurement - Google Patents
Friction measurementInfo
- Publication number
- GB1532417A GB1532417A GB48685/75A GB4868575A GB1532417A GB 1532417 A GB1532417 A GB 1532417A GB 48685/75 A GB48685/75 A GB 48685/75A GB 4868575 A GB4868575 A GB 4868575A GB 1532417 A GB1532417 A GB 1532417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheels
- friction
- trailer
- wheel
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
Landscapes
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
1532417 Measuring friction B A G LONNROTH 26 Nov 1975 [27 Nov 1974 25 Feb 1975] 48685/75 Heading G1S [Also in Division B7] A trailer 15, Figs. 3, 4, used for measuring the friction between its wheels and the road surface, has a draw bar 16 and wheels which may be moved into a toe-in (as shown) or toe-out position from a normal transport position with (+)ve or (-)ve camber as in Fig. 5 (not shown). The wheels are mounted for rotation on journals 7, 8 inclined from an axle 6 so that in the wheel position shown in Fig. 4 the wheels scuff when the trailer is pulled along and the axle 6 is rotated in its bearings 9, 10 to turn a lever 12 and operate a dynamometer 13 indicating torque. The torque so measured is related to the coefficient of friction between the wheels and the road. The trailer may be provided with two parallel axles each with one wheel journal and two measuring devices may be used. It is also possible for only one wheel or four wheels to be used. In Fig. 6 (not shown) a piston and cylinder (20) is used to movably adjust the dynamometer 13.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7414859A SE395060B (en) | 1974-11-27 | 1974-11-27 | DEVICE FOR SATURING FRICTION BETWEEN WHEELS AND SUBSTRATES |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1532417A true GB1532417A (en) | 1978-11-15 |
Family
ID=20322828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48685/75A Expired GB1532417A (en) | 1974-11-27 | 1975-11-26 | Friction measurement |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS51146287A (en) |
FR (1) | FR2292971A1 (en) |
GB (1) | GB1532417A (en) |
SE (1) | SE395060B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0227003A2 (en) * | 1985-12-16 | 1987-07-01 | K.J. Law Engineers, Inc. | Measuring friction characteristics of vehicle travel surfaces |
US4958512A (en) * | 1988-04-07 | 1990-09-25 | Oddvard Johnsen | Method and a device for use in determining conditions of runway friction and braking |
WO2000036397A1 (en) * | 1998-12-15 | 2000-06-22 | Michelsen Ole Petter | Friction measurement device for a vehicle and utilization thereof |
WO2000075618A1 (en) * | 1999-06-03 | 2000-12-14 | Jan Folke Wallenius | Method and device for determining during driving the friction between the road and the wheel of a vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6840098B2 (en) * | 2003-01-27 | 2005-01-11 | Donald R. Halliday | Roadway friction tester and method |
-
1974
- 1974-11-27 SE SE7414859A patent/SE395060B/en unknown
-
1975
- 1975-11-25 FR FR7536005A patent/FR2292971A1/en active Granted
- 1975-11-26 GB GB48685/75A patent/GB1532417A/en not_active Expired
- 1975-11-26 JP JP50141547A patent/JPS51146287A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0227003A2 (en) * | 1985-12-16 | 1987-07-01 | K.J. Law Engineers, Inc. | Measuring friction characteristics of vehicle travel surfaces |
EP0227003A3 (en) * | 1985-12-16 | 1988-09-21 | K.J. Law Engineers, Inc. | Measuring friction characteristics of vehicle travel surfaces |
US4958512A (en) * | 1988-04-07 | 1990-09-25 | Oddvard Johnsen | Method and a device for use in determining conditions of runway friction and braking |
WO2000036397A1 (en) * | 1998-12-15 | 2000-06-22 | Michelsen Ole Petter | Friction measurement device for a vehicle and utilization thereof |
WO2000075618A1 (en) * | 1999-06-03 | 2000-12-14 | Jan Folke Wallenius | Method and device for determining during driving the friction between the road and the wheel of a vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPS51146287A (en) | 1976-12-15 |
SE395060B (en) | 1977-07-25 |
SE7414859L (en) | 1976-05-28 |
FR2292971A1 (en) | 1976-06-25 |
FR2292971B3 (en) | 1978-09-01 |
JPS5515652B2 (en) | 1980-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |