. Manual of recommended practice for railway engineering and maintenance of way . STANDARD DRILLING FOR SIX-HOLE SPLICE.. STANDARD DRILLING FOR FOUR-HOLE SPLICE. *FROG BLOCKING. RECOMMENDED PRACTICE. That the heel of all frogs be made with a steel filler block, to fitthe section of rail, securely bolted in with the outer end of filler planedoff ^-in. below top of rail to act as a riser for the outer edge of worntreads. That the wings and throat of all frogs be blocked with a metalor wood blocking, shaped to fit rail sections, to give il-2-in. flange clearance.and be securely bolted to frog. •
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. Manual of recommended practice for railway engineering and maintenance of way . STANDARD DRILLING FOR SIX-HOLE SPLICE.. STANDARD DRILLING FOR FOUR-HOLE SPLICE. *FROG BLOCKING. RECOMMENDED PRACTICE. That the heel of all frogs be made with a steel filler block, to fitthe section of rail, securely bolted in with the outer end of filler planedoff ^-in. below top of rail to act as a riser for the outer edge of worntreads. That the wings and throat of all frogs be blocked with a metalor wood blocking, shaped to fit rail sections, to give il-2-in. flange clearance.and be securely bolted to frog. • Adopted, Vol. 5, 1904, pp. 525, 520, 571 ; Vol. 6, 1905, pp. 757, 758, 759- 701. J :;:J COMMITTEE NO. VLBUILDINGS. * CONCLUSIONS RELATIVE TO ONE GENERAL WAITINGROOM OR SEPARATE WAITING ROOMS IN A LOCALPASSENGER STATION (WITHOUT REFER-ENCE TO SEPARATE WAITING ROOMSFOR COLORED PEOPLE). RECOMMENDED PRINCIPLES OF PRACTICE. Your Committee recommends that the Association approve the useof one general waiting room for a local passenger station (without refer-ence to separate waiting rooms for colored people). Your Commit