flange-bearing frog
Federal Register :: Rail Integrity Amendments amp Track
The flange-bearing frog Start Printed Page 72544 changes would eliminate the required inspection time during the first week when compared to current conditions under the FRA waiver The continuous testing flange-bearing frog and heavy-point frog changes would eliminate the need for and costs of applying for waivers to implement such a testing
Flange Bearing Diamonds
A flange bearing frog would have a flangeway 1 deep Flange bearing frogs are not a new type at all but have been used on street railway systems for over a century Yes they are quieter Though their use was nearly universal in street trackage steam railroads (This is a generic term used by the street railway and interurban industry to
Regulations
Summary: FRA is proposing to revise its regulations governing the minimum safety requirements for railroad track The proposed changes include allowing inspection of rail using continuous rail testing allowing the use of flange-bearing frogs in crossing diamonds relaxing the guard check gage limits on heavy-point frogs used in Class 5 track removing an inspection-method exception for high
Railway Turnout Frog
Railway Turnout Frog In the technical field of railway track turnout is a crucial mechanical equipment that causes a train to move from one track line to another pre-determined line which usually at the station or a large number of marshalling stations are laid
American Standard Railway Turnout Frog from AGICO
Railway turnout frog is an important key component and necessary to lay focus on explanation Frog consists of two point rails two wing rails two guard rail (also named check rail) tie plate blocks other accessories and etc According to different production technologies Frog may
American Standard Railway Turnout Frog from AGICO
Railway turnout frog is an important key component and necessary to lay focus on explanation Frog consists of two point rails two wing rails two guard rail (also named check rail) tie plate blocks other accessories and etc According to different production technologies Frog may
49 CFR 213 137
(c) If the tread portion of a frog casting is worn down more than three-eighths inch below the original contour operating speed over that frog shall not be more than 10 m p h (d) Where frogs are designed as flange-bearing flangeway depth may be less than that shown for Class 1
FROGS
Frog is a hybrid of a conventional self-guarded frog and a pure flange bearing frog Depending upon wear profile wheels traverse the frog in either tread or flange bearing mode The distribution of wheel loading yields significant improvement in frog life Rail Bound Manganese (RBM) frogs are manufactured to meet or exceed all AREMA requirements
Update 2015: special trackwork
Jul 14 2015The vertical switch and lift frog are installed in Class 1 track " In addition to the company's OWLS crossing diamond that is designed to eliminate the flange gap on the mainline heavy run Progress Rail Services continues to develop and improve its full-flange-bearing design
LGB track switches
They are all flange bearing frogs This means the flange rides on the bottom of the flangeway as it goes through the frog This works fine if all your flanges are the same depth as LGB flanges i e 3 mm but anything less means your wheels will try to run on the wing rails and frog (as in the prototype) and you may experience reliability
Frogs
The partial flange bearing frog is a hybrid of a conventional self-guarded frog and a pure flange bearing frog Depending upon wear profile wheels traverse the frog in either tread or flange bearing mode The distribution of wheel loading yields significant improvement in frog life
Appendix 1 – Transport Canada Defect Codes
Tread portion of frog worn in excess of allowable T D 13 3 Operating speed above 10 MPH over frog with tread portion worn in excess of allowable T D 13 4 Operating above Class 1 speeds over flange-bearing frog or diamond T D 14 A Other spring frog concern (specify) T D 14 1
Suzhou Jinstar Railway Materials Co Ltd
3 Frog of Turnout Frog is an important key component of turnout it is necessary to lay focus on explanation Frog consists of two point rails two wing rails two guard rail (also named check rail) tie plate blocks other accessories and etc According to different production technologies Frog may be classified into different types
Technical Sheets
The one-piece manganese design provides a level flange-bearing guarded wheel path through the body of the frog on the turnout side Features EL Frog Panel EL Frog Casting EL Frog Assembly Patent Pending vossloh-north-america EL Frog The new Vossloh "EL Frog" design provides the required ramping by means of
49 CFR 213 137
(c) If the tread portion of a frog casting is worn down more than three-eighths inch below the original contour operating speed over that frog shall not be more than 10 m p h (d) Where frogs are designed as flange-bearing flangeway depth may be less than that shown for Class 1
Update 2015: special trackwork
Jul 14 2015The vertical switch and lift frog are installed in Class 1 track " In addition to the company's OWLS crossing diamond that is designed to eliminate the flange gap on the mainline heavy run Progress Rail Services continues to develop and improve its full-flange-bearing design
APPENDIX E NOISE AND VIBRATION TECHNICAL REPORT
trackwork would eliminate the impact Low-impact frogs can reduce noise levels by creating a smoother transition through the gap in the rails at the special trackwork Examples of low-impact frogs include moveable point frogs spring-rail frogs monoblock frogs or flange-bearing frogs (refer to Appendix G for more information)
Lowell Feasibility Study
Option #2: Change out all frogs to flange bearing and modify switch points if necessary to accommodate the antique trolley car wheel arrangements Option #3: Change out wheelsets on non-compliant wheelsets (See Reference #1 above) on a trolley car specific consideration COSTS: Option #1 Zero Option #2
Frogs Patents and Patent Applications (Class 246/468
Jun 18 2014Flange bearing frog crossing Patent number: 8870128 Abstract: The invention may be described as including a crossing panel assembly for a railway intersection as well as a rail intersection design and a frog casting therefor The present invention may be used for single and multiple crossings as will be appreciated from the description and
What the heck is a jump frog? Why a simple rail device is
Aug 25 2020A frog is commonly used on rail corridors to divert a train from one track to another when the track being used at that time has high traffic This operational procedure allows busiest train routes to have continuous and smooth service The train is diverted to an alternate track called a diverging route by the frog and this slows down the train
Applicability of AREMA Track Recommended Practices for
Flange-bearing frogs are the preferred solution and are used by several light rail systems The switch point designs in AREMA Plan 221-00 details 4000 5100 and 6100 may allow wheel flange heights less than 1 inch (25 mm) with wheel gages wider than 5511 16 inches (1 415 mm) to climb worn or chipped points
Federal Register :: Rail Integrity Amendments amp Track
The flange-bearing frog Start Printed Page 72544 changes would eliminate the required inspection time during the first week when compared to current conditions under the FRA waiver The continuous testing flange-bearing frog and heavy-point frog changes would eliminate the need for and costs of applying for waivers to implement such a testing
Overview of Flange Bearing Frogs [Read
May 14 2010Why flange bearing frogs? Advantaggg gges of flange bearing frogs: Reduced risks Reduced impacts Reduced maintenance Reduced damage to lading Reduced wear on rolling stock Reduced wear on rail and track components Reduced overall impact on the ballast and sub-grade 1
Development of Enabling Technologies for Heavy Axle Load
Turnout frogs that use flange-bearing design to virtually eliminate vertical dynamic loads for mainline traffic are being implemented Figure 3 shows a "lift" frog in service (along with other types of flange bearing frogs) This type of turnout frog is rapidly being implemented in
4910
213 137(a) Flange-bearing-frog crossing diamonds are different from traditional tread-bearing frogs in that they are designed to support wheels running on their flanges Both waivers have been in place for an extended period of time and both heavy-point frogs and flange-bearing-frog crossing diamonds have been safe under them







