Locking table for ACTON YARD 1958
| No. | Released by | Locks Normal | Locks both ways |
| 1 | 2. | 3.(46,52w34N).(49,53w31R).(50w31,35R or 34,39N44R). | 31. |
| 2 | | 4.5.13.15.16.19.26.(46,52w33R).(49,53w32R).(50w35,32R or 39N44,33R). | |
| 3 | | 1.4.5.13.14.18.25. | 2. |
| 4 | | 2.3.5.13.(46,52w34,33N).(49,53w32N31R).(50w32N31,35R or 34,39,33N44R or 32N35,31R). | 31. |
| 5 | | 2.3.4.13.(46,52w34,33N).(49,53w32N31R).(50w32N31,35R or 34,39,33N44R or 32N35,31R). | 31. |
| 6 | X | | |
| 7 | X | | |
| 8 | X | | |
| 9 | X | | |
| 10 | | 30.48.(46,52w34R).(49,53w31N).(50w31N35R or 39N34,44R). | 34. |
| 11 | 30. | 47.(46,52w34R).(49,53w31N).(50w31N35R or 39N34,44R). | 34. |
| 12 | (43w34,36R). | 17.24.31.47.48.49.(37w34N).(46w34R).(50w44N). | 30.34.35.(36w34R). |
| 13 | | 2.3.4.5.30.(46,52w34,33N).(49,53w32N31R).(50w32N31,35R or 34,39,33N44R or 32N35,31R). | 31. |
| 14 | (43w31N36R). | 3.18.25.30.32.33.34.46.(37,49,53w31R).(50w31,35R). | 2.31.(35w31R).(36w31N). |
| 15 | | 2.(46,52w33R).(49,53w32R).(50w35,32R or 39N44,33R). | 32. |
| 16 | (32OR33).(43w31N36R). | 2.19.26.46.(37,49,53w31R).(50w31,35R). | (35w31R).(36w31N). |
| 17 | 20. | 12.31.34.47.48. | 30. |
| 18 | (20,31OR21). | 3.14.30.32.33.34. | 2.31. |
| 19 | (20,32OR21,33). | 2.16. | |
| 20 | 35. | 37.49.50. | |
| 21 | 36.43. | 46. | |
| 22 | 39.43. | 38.40. | |
| 23 | | 50. | |
| 24 | 34. | 12.46.47.48. | 30. |
| 25 | | 3.14.30.33.34.46. | 2. |
| 26 | 33. | 2.16.46. | |
| 27 | X | | |
| 28 | X | | |
| 29 | X | | |
| 30 | | 10.13.14.18.25.48. | |
| 31 | | 12.17.33.34.46.52.(14,16w37R).(49,53w32N4R).(50w39N44R or 32N4,35R). | |
| 32 | 31. | 14.18. | |
| 33 | | 14.18.25.31.34. | |
| 34 | | 14.17.18.25.31.33.49.53.54.(50w44N). | |
| 35 | | 44.(50w32N4,31R). | |
| 36 | | 37.39. | |
| 37 | 35. | 20.36.39.50.(12w34N).(14,16w31R). | |
| 38 | | 22. | |
| 39 | (38 from EP). | 36.37. | |
| 40 | | 22. | 39. |
| 41 | X | | |
| 42 | X | | |
| 43 | 44. | 50. | |
| 44 | | 35.51.52.(50w39N31R or 34,39,33N4R). | |
| 45 | X | | |
| 46 | | 14.16.21.24.25.26.31.(1w34N).(2,15w33R).(4,5,13w34,33N).(10,11,12w34R). | 33.34.(2w34N).(30w34R). |
| 47 | 30. | 11.12.17.24. | |
| 48 | | 10.12.17.24.30. | |
| 49 | | 12.20.34.(1,14,16w31R).(2,15w32R).(4,5,13w32N31R).(10,11w31N). | 31.32.(2w31R).(30w31N). |
| 50 | (36,40,44OR38,39,40,44OR35). | 20.23.37.43.(1w31,35R or 34,39N44R).(2,15w35,32R or 39N44,33R).(4,5,13w32N31,35R or 34,39,33N44R or 32N35,31R).(10,11w31N35R or 39N34,44R).(12,34w44N).(14,16w31,35R).(31w39N44R). | (31,32w35R).(33,34w39N44R). |
| 51 | 38.39.40. | 44. | |
| 52 | 36.40. | 31.44.(1w34N).(2,15w33R).(4,5,13w34,33N).(10,11w34R). | 33.34. |
| 53 | 37.40. | 34.(1,14,16w31R).(2,15w32R).(4,5,13w32N31R).(10,11w31N). | 31.32. |
| 54 | 46. | 34. | |
| 55 | 34.46. | | |
| 56 | X | | |
| 57 | X | | |
| 58 | X | | |
ACTON YARD 1958 LOCKING TABLE | Derived from chart dated 3 Dec 1958 |