▁engines . ▁Add itions ▁were ▁made ▁over ▁the ▁next ▁ten ▁years , ▁cul min ating ▁in ▁the ▁sm ith ery ▁which ▁stands ▁parallel ▁with ▁the ▁original ▁block , ▁to ▁the ▁south ; ▁d ating ▁from ▁ 1 8 4 7 , ▁this ▁originally ▁contained ▁ 4 8 ▁hear th s ▁and ▁ 5 ▁Nas my th ▁steam ▁h amm ers . ▁Co ppers m ith s ▁and ▁br ass ▁found ers ▁were ▁accommod ated ▁in ▁a ▁smaller ▁block ▁just ▁to ▁the ▁west ▁( which ▁is ▁still ▁to ▁be ▁seen , ▁immediately ▁north ▁of ▁the ▁old ▁police ▁house ▁at ▁the ▁West ▁Gate ). ▁The ▁building ▁which ▁faces ▁the ▁police ▁house ▁across ▁the ▁gateway ▁was ▁built ▁in ▁ 1 8 4 8 - 9 ▁to ▁serve ▁as ▁the ▁W ool wich ▁D ock yard ▁School ▁for ▁App rent ices : ▁one ▁of ▁a ▁number ▁of ▁such ▁schools ▁set ▁up ▁at ▁the ▁Royal ▁D ock y ards ▁under ▁an ▁Admir alty ▁Sch eme ▁of ▁ 1 8 4 3 , ▁W ool wich ▁special ised ▁in ▁steam ▁engineering , ▁and ▁for ▁a ▁time ▁factory ▁app rent ices ▁from ▁all ▁the ▁royal ▁dock y ards ▁were ▁educated ▁at ▁the ▁school . ▁▁ ▁Less ▁than ▁half ▁a ▁mile ▁to ▁the ▁south ▁of ▁the ▁site ▁there ▁is ▁a ▁railway ▁station ▁called ▁W ool wich ▁D ock yard . ▁ ▁Rel oc ated ▁buildings ▁ ▁An ▁iron - fr amed ▁building ▁of ▁ 1 8 1 4 ▁by ▁John ▁R enn ie ▁the ▁E lder , ▁removed ▁from ▁W ool