spawners not working

i brought 3 none work

spawner 1 http://gyazo.com/00e30546221809bf29c90f863363d63b
spawner 2 http://gyazo.com/c62f04c334ea58ce9f8cc7fdbd1de4b1
spawner 3 http://gyazo.com/2e43871bb09d45a4a50f171740181d2a

All were skelly