. The trackman's helper . neven tie. (e) Pole Sawed. (a) Quarter tie. (b) Slab tie. (c) Half tie. (d) Pole tie. Fig. 12 shows, at upper part, first, a quarter tie;that is, a tree quartered into four ties, that has verylittle heart, as one corner of same, which, if placedin track with heart up, will check quickly; and if putwith heart down, as shown below same, and the spikesare driven in, will split the heart part away from therest of the tie. A slab tie is shown at No. 2 ; that is, a 58 THE TRACKMANS HELPER. tree halved into two ties, and the same results occur asfrom quarter ties. At
. The trackman's helper . neven tie. (e) Pole Sawed. (a) Quarter tie. (b) Slab tie. (c) Half tie. (d) Pole tie. Fig. 12 shows, at upper part, first, a quarter tie;that is, a tree quartered into four ties, that has verylittle heart, as one corner of same, which, if placedin track with heart up, will check quickly; and if putwith heart down, as shown below same, and the spikesare driven in, will split the heart part away from therest of the tie. A slab tie is shown at No. 2 ; that is, a 58 THE TRACKMANS HELPER. tree halved into two ties, and the same results occur asfrom quarter ties. At No. 3 a half tie, which explainsitself. These ties, when the heart is placed down, givefor support of the rail only sapwood, which will bequickly cut into. At No. 4 is shown an uneven hewntie with a face of 3 inches on one side, which, if placedup, will very soon be cut into by the rail base, as shownbelow same. Nos. 5 and 6 *show pole ties, so-called,which are the best for use in track, owing to the heart RAILROAD C£tU. CHESTNUT FIG. 12. being at the center, with sapwood on the outer cor-ners only; and such ties, when placed on track, willgive longer life and allow correct spiking for gageand to prevent creeping, and will not require so quicklythe use of plateson tangents; whereas the other tieswhen used should have a tie plate with some, if sap isplaced up, to prevent their being cut into. On lower part of cut is shown, first, a hard pinetie, then a cedar, then a chestnut, then a narrow-facechestnut and a wide face chestnut tie. It will be no- SUMMER TRACK WORK. 59 ticed the hard pine tie is cut in but little, the cedar andnarrow-face chestnut the most, which would occasion,if ties thus placed were of different wood or of differentface, an uneven bearing- for the rail base when thewheels are upon same. There can be brought up also the objection of nar-row and wide face ties placed near each other, espe-cially if under a bridge or at a highway crossing,owing to the fa
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1900
