. Experiments in the preservative treatment of red-oak and hard-maple crossties . the original experiment 262 red-oak and 21 chestnut ties treated ata commercial plant by the Burnett process were Some ofeach species of these ties were laid with screw spikes and flat steeltie-plates, and others with ordinary cut spikes and malleable-ironribbed tie-plates. Also, 25 spruce ties treated by the Kyanizingprocess were Of these, 13 were put in with screw spikesand flat steel tie-plates, and the remainder with ordinary cut spikes, 1 These ties were treated with pound of dry zinc
. Experiments in the preservative treatment of red-oak and hard-maple crossties . the original experiment 262 red-oak and 21 chestnut ties treated ata commercial plant by the Burnett process were Some ofeach species of these ties were laid with screw spikes and flat steeltie-plates, and others with ordinary cut spikes and malleable-ironribbed tie-plates. Also, 25 spruce ties treated by the Kyanizingprocess were Of these, 13 were put in with screw spikesand flat steel tie-plates, and the remainder with ordinary cut spikes, 1 These ties were treated with pound of dry zinc chiorid per cubic foot of wood, injected in a 4 percent aqueous solution. They were furnished from regular stock of the Chicago, Milwaukee & St. PaulRailway. 2 The Kyanized ties were contributed by the Berlin Mills Co., Manchester, N. H. Bui. 1 26, Forest Service, U. S. Dept of Agriculture. Plate IX. *fc^ JL ^s^fyj. -^•—-- i - - - r?>^f;^ ^ iTntMaBB . .. -. _ ^ ...•. t* #•> i^ - «♦ vifft ■lid §~, Fiq. 1.—Ties and Rails Ready to be Placed in the Fig. 2.—Boring Ties and Driving Screw Spikes in the Ties in the Test Track. , MALLEABLE I HON PIBBED TIEPLATES WITH CUT SP/KES P~LAT STEEL. TIE PLATES WITH SCREW SPIKES 9- <—1 I : m 11 ■:;::. 111;; i; i;;!; 11,;:;;;: ^ i i,; i;:! 11 ■ i i; 1111) f 11 i i f [ m I i i i i h ; f i;; i m 111 i 1111) I i 11 i 111 f f N; m 11111 [ [ i i n I f f f 11 m 11 [ i IH i ( m ! i r\JN*it<XN:li\l<Y|i\( \«\l<\i<\ji\|flltMjc^(\j(\i(\i<Xc3(no,O(<M<^c<0(Nfl|O|(yi\j <\|cy|(\|cgc\Jc\|t<o|ivOI|r\1 t\l<\J(\!<\l<Xl<\l(V<V(Vc<i«Vfvnt<\)ty<v<Vol<\5^-CULVEPT ^N m <n <ri « j) <n <^ PED OAK. W o % lg0) «) N iy0) 0i 0) 0) 0) «) <^05 V) ov &M << ■ PEAT STEEL TIE: PLATESESCHEW -SPIKES MALLEABEE /PON RIBBED -TIE PLATES WITH CUT SPIKES S?S 5 ^ *0 > v S ^ V> J ^ 1 Nl0p>^91 ««
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectwoodpre, bookyear1913
