GB909275A - End to end connection for bars, especially mine roof bars - Google Patents
End to end connection for bars, especially mine roof barsInfo
- Publication number
- GB909275A GB909275A GB2188662A GB2188662A GB909275A GB 909275 A GB909275 A GB 909275A GB 2188662 A GB2188662 A GB 2188662A GB 2188662 A GB2188662 A GB 2188662A GB 909275 A GB909275 A GB 909275A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bars
- bar
- vanwersch
- wedge
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
- F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B3/00—Key-type connections; Keys
Abstract
909,275. Mine roof supporting bars. VANWERSCH, L., VANWERSCH, A., and VANWERSCH, P. June 1, 1959 [May 30, 1958], No. 21886/62. Divided out of 909,274. Class 20 (2). [Also in Group XXV] In bars for supporting mine roofs connected end to end, in which a bar 2 to be erected is turned about a pin 5 on a bar 1 already in position by means of a wedge 7 driven through holes 6 in the bar 1 and engaging an inclined surface 8 on the bar 2, spring pins 12, 17 fixed at one end to the bar 1 at the other end engage grooves 10, 15 respectively in the wedge 7 and the pin 5 to retard their movement. The engagement of the springs with the end of the grooves prevents withdrawal of the pin and the wedge.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV14484A DE1214184B (en) | 1958-05-30 | 1958-05-30 | Securing device for wedges and hinge pins of expansion caps |
DEV0015285 | 1958-10-27 | ||
DEV25683A DE1260413B (en) | 1958-05-30 | 1964-03-25 | Safety device for wedges of Vorpfaendkappen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB909275A true GB909275A (en) | 1962-10-31 |
Family
ID=27213266
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1862659A Expired GB909274A (en) | 1958-05-30 | 1959-06-01 | End to end connection for bars, especially mine roof bars |
GB2188662A Expired GB909275A (en) | 1958-05-30 | 1959-06-01 | End to end connection for bars, especially mine roof bars |
GB2883164A Expired GB1047876A (en) | 1958-05-30 | 1964-07-13 | An end to end connection for bars, particularly mine roof support bars |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1862659A Expired GB909274A (en) | 1958-05-30 | 1959-06-01 | End to end connection for bars, especially mine roof bars |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2883164A Expired GB1047876A (en) | 1958-05-30 | 1964-07-13 | An end to end connection for bars, particularly mine roof support bars |
Country Status (5)
Country | Link |
---|---|
BE (2) | BE579174A (en) |
DE (2) | DE1214184B (en) |
FR (2) | FR1235566A (en) |
GB (3) | GB909274A (en) |
NL (2) | NL239658A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1280182B (en) * | 1963-04-16 | 1968-10-17 | Aloys Vanwersch | Securing device for wedges and hinge pins of expansion caps |
DE3032443C2 (en) * | 1980-08-28 | 1982-08-12 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Component with a connection area with bolt eyes arranged offset |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE952976C (en) * | 1953-01-28 | 1956-11-22 | Karl Maria Groetschel Dipl Ing | Swivel jointed cup irons |
DE1122025B (en) * | 1960-07-29 | 1962-01-18 | Aug Kloenne Fa | Lock for an articulated cap connection |
-
1958
- 1958-05-30 DE DEV14484A patent/DE1214184B/en active Pending
-
1959
- 1959-05-29 NL NL239658D patent/NL239658A/xx unknown
- 1959-05-29 BE BE579174D patent/BE579174A/xx unknown
- 1959-06-01 GB GB1862659A patent/GB909274A/en not_active Expired
- 1959-06-01 GB GB2188662A patent/GB909275A/en not_active Expired
-
1960
- 1960-05-30 FR FR796166A patent/FR1235566A/en not_active Expired
-
1964
- 1964-03-25 DE DEV25683A patent/DE1260413B/en active Pending
- 1964-05-25 FR FR975782A patent/FR86079E/en not_active Expired
- 1964-06-05 BE BE648888A patent/BE648888A/xx unknown
- 1964-07-13 GB GB2883164A patent/GB1047876A/en not_active Expired
- 1964-07-13 NL NL6407975A patent/NL6407975A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE579174A (en) | 1959-06-15 |
GB909274A (en) | 1962-10-31 |
FR1235566A (en) | 1960-11-04 |
BE648888A (en) | 1964-10-01 |
GB1047876A (en) | 1966-11-09 |
NL239658A (en) | 1964-01-27 |
FR86079E (en) | 1965-12-03 |
DE1260413B (en) | 1968-02-08 |
NL6407975A (en) | 1965-09-27 |
DE1214184B (en) | 1966-04-14 |
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