GB376770A - Improvements in or relating to flaw dectectors - Google Patents
Improvements in or relating to flaw dectectorsInfo
- Publication number
- GB376770A GB376770A GB311432A GB311432A GB376770A GB 376770 A GB376770 A GB 376770A GB 311432 A GB311432 A GB 311432A GB 311432 A GB311432 A GB 311432A GB 376770 A GB376770 A GB 376770A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carriage
- detector
- brush
- rail
- march
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
376,770. Magnetic tests. SPERRY PRODUCTS, Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Drake, H. C. ; 65, Lincoln Boulevard, Hempstead, Long Island, New York, U.S.A.) March 13, 1931, No. 3114/32. Convention date, March 18, 1930. Divided on 374,172 and addition to 317,070, [Class 37, Electricity, Measuring &c.]. [Class 37.] The flaw detector mechanism claimed in the parent Specification is mounted so that it is maintained a substantially constant distance from the rail under test. The brush carriage engages the rail through which the testing current is passed, and means are provided for moving the detector carriage independently of the brush carriage, the detector carriage being mounted on the brush carriage. In one construction, Fig. 3, the carriage 70 carrying the detector coil box 12 is provided with bolts 75 which pass freely through bushes 76 on the support 71 secured to the brush carriage, springs 78 permitting limited movement of the detector carriage 70. The carriage 70 may have solid or grooved wheels 72, or shoes may be provided. The detector coils may be carried on rollers 95, Fig. 6, pivotally mounted on the detector carriage and spring biassed into engagement with the rail, or they may be carried in a block associated with, but separate from, the spring biassed rollers.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US298771A US1820505A (en) | 1928-08-10 | 1928-08-10 | Fissure detector for metals |
| US436660A US1912569A (en) | 1930-03-18 | 1930-03-18 | Rail fissure detector |
| US554485A US1944954A (en) | 1928-08-10 | 1931-08-01 | Flaw detector for electrical conductors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB376770A true GB376770A (en) | 1932-07-13 |
Family
ID=27404591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB311432A Expired GB376770A (en) | 1928-08-10 | 1931-03-13 | Improvements in or relating to flaw dectectors |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE607810C (en) |
| GB (1) | GB376770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576869A (en) * | 2019-10-21 | 2019-12-17 | 西南交通大学 | A coaxial sprocket wheel-rail structure |
-
1931
- 1931-03-10 DE DES101619D patent/DE607810C/en not_active Expired
- 1931-03-13 GB GB311432A patent/GB376770A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576869A (en) * | 2019-10-21 | 2019-12-17 | 西南交通大学 | A coaxial sprocket wheel-rail structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DE607810C (en) | 1935-01-08 |
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