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2008 - 2023 års Järnvägshistoriska forum

År 1911 påbörjade SJ ett test av dymlingar(100.000 st) i slipers.
Är det någon som känner till resultatet av detta test ?

Pligg tror jag de kallas, avsedda att sätta igen hål efter rälsspik. Tror de används fortfarande.

Hela tråden:

Dymlingar i slipers - mormorsgruvan, 2023-10-06, 13:49
- Dymlingar i slipers - Thomas Helin, 2023-10-06, 14:14
- Dymlingar i slipers - Per Ljungberg, 2023-10-06, 19:40
  - Dymlingar i slipers - Sune Nylén, 2023-10-07, 07:11
- Dymlingar i slipers - Göran Kannerby, 2023-10-07, 09:07
  - Dymlingar i betongslipers - BD, 2023-10-07, 11:42
  - Dymlingar i slipers - Sune Nylén, 2023-10-07, 13:30
- Dymlingar i slipers - Rolf Öberg, 2023-10-09, 18:19
  - Dymlingar i slipers - Göran Kannerby, 2023-10-09, 18:59

Time: 276
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE pid = 0 AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0) AND category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27)

Time: 1240
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE (mlf2_akismet_rating.spam = 1 OR mlf2_b8_rating.spam = 1)

Time: 1518
SELECT COUNT(*) FROM mlf2_entries LEFT JOIN mlf2_akismet_rating ON mlf2_akismet_rating.eid = mlf2_entries.id LEFT JOIN mlf2_b8_rating ON mlf2_b8_rating.eid = mlf2_entries.id WHERE category IN (0, 4, 5, 6, 7, 8, 9, 25, 14, 23, 19, 22, 24, 10, 21, 11, 12, 13, 15, 16, 26, 18, 20, 27) AND (mlf2_akismet_rating.spam = 0 AND mlf2_b8_rating.spam = 0)

Total time: 3045