MSHA - Code of Federal Regulations - 30 CFR A75.5990A
Skip to content
MSHA - Title 30 CFR
APPENDIX A--LIST OF PERMISSIBLE ELECTRIC FACE EQUIPMENT APPROVED BY THE BUREAU OV MINES PRIOR TO MAY 23, 1936


APPENDIX A--LIST OF PERMISSIBLE ELECTRIC FACE EQUIPMENT APPROVED
BY THE BUREAU OF MINES PRIOR TO MAY 23, 1936

Motor-Driven Mine Equipment

(Approved Under Schedules 2, 2A, 2B, and 2C)

                 --------------------+--------------------
                     Approval No.    |        Date
                 --------------------+--------------------
                    AIR COMPRESSORS  |
                 --------------------+--------------------
                  128................| March 21, 1927.
                  128A...............| July 16, 1926.
                 --------------------+--------------------



COAL DRILLS AND DRILLING MACHINES Hand Drills --------------------+-------------------- 109................| September 19, 1922. 154................| August 1, 1928. 184................| February 7, 1930. 227................| July 29, 1931. 254................| July 15, 1933. --------------------+--------------------
Post Drills --------------------+-------------------- 119................| April 15, 1925. 119A...............| Do. 225................| July 10, 1931. 225A...............| Do. 228................| August 12, 1931. 228A...............| February 17, 1932. 230................| August 20, 1931. 230A...............| Do. 237................| December 1, 1931. 237A...............| Do. --------------------+--------------------
Drilling Machines --------------------+-------------------- 147................| February 8, 1928. 147A...............| Do. 176................| September 9, 1929. 176A...............| Do. --------------------+--------------------
LOADING AND CONVEYING EQUIPMENT LOADING MACHINES Unmounted Type --------------------+-------------------- 122................| January 8, 1926. 122A...............| Do. --------------------+--------------------
Caterpillar-Mounted Type --------------------+-------------------- 150................| May 11, 1928. 186................| March 15, 1930. 222................| May 8, 1931. 222A...............| July 28, 1931. 229................| August 17, 1931. 229A...............| Do. 235................| November 27, 1931. 235A...............| October 29, 1931. 278................| January 17, 1935. 278A...............| Do. 283A...............| March 12, 1935. 284A...............| Do. 285A...............| Do. 294................| September 18, 1935. 300A...............| May 6, 1936. 127................| July 16, 1926. 127A...............| September 23, 1927. --------------------+--------------------
Track-Mounted Type --------------------+-------------------- 194................| June 6, 1930. 194A...............| Do. 217................| February 27, 1931. 217A...............| Do. 276................| January 11, 1935. 277................| January 17, 1935. 282A...............| March 12, 1935. 291A...............| July 3, 1935. --------------------+--------------------
Pit-Car Loaders --------------------+-------------------- 167................| March 27, 1929. 167A...............| Do. 175................| July 26, 1929. 175A...............| June 24, 1929. 250................| December 10, 1932. 250A...............| Do. 252A...............| February 20, 1933. --------------------+--------------------
CONVEYORS Belt Type --------------------+-------------------- 236................| November 19, 1931. 287A...............| March 12, 1935. 296A...............| January 6, 1936. --------------------+--------------------
Chain Type --------------------+-------------------- 151................| May 19, 1928. 209................| December 2, 1930. 240................| March 12, 1932. 240A...............| Do. 298A...............| March 3, 1936. --------------------+--------------------
Power Units for Conveyors --------------------+-------------------- 265................| February 12, 1934. 265A...............| March 19, 1934. 390A...............| March 23, 1934. --------------------+--------------------
Shaker Type --------------------+-------------------- 247................| October 21, 1932. 257A...............| August 11, 1933. 262A...............| December 8, 1933. 271................| May 20, 1935. 271A...............| October 17, 1934. 274A...............| December 13, 1934. 286A...............| March 12, 1935. 295................| September 20, 1935. 299A...............| April 9, 1936. --------------------+--------------------
Scraper-type Loaders --------------------+-------------------- 138................| August 5, 1927. 138A...............| Do. 196................| September 29, 1930. 196A...............| July 26, 1930. 226................| July 27, 1931. 255................| July 31, 1933. 256................| Do. --------------------+--------------------
MINING MACHINES, MACHINERY-MOVING EQUIPMENT, MISCELLANEOUS TRUCKS, AND WATER SPRAY SUPPLY UNITS MINING MACHINES Shortwall Machines --------------------+-------------------- 103................| November 2, 1917. 103A...............| Do. 105................| February 9, 1922. 105A...............| Do. 106................| Do. 106A...............| Do. 107................| Do. 107A...............| Do. 108................| Do. 108A...............| Do. 111................| October 16, 1922. 111A...............| Do. 113................| November 4, 1924. 113A...............| Do. 114................| February 7, 1925. 114A...............| Do. 115................| Do. 115A...............| Do. 153................| July 31, 1928. 153A...............| Do. 193................| June 3, 1930. 193A...............| Do. 197................| July 31, 1930. 197A...............| Do. 198................| August 1, 1930. 198A...............| Do. 201................| September 8, 1930. 201A...............| Do. 204................| October 13, 1930. 204A...............| December 13, 1930. 223................| May 13, 1931. 223A...............| Do. 241................| March 18, 1932. 241A...............| Do. 258................| August 15, 1933. 259A...............| August 16, 1933. 260A...............| August 17, 1933. 273................| November 30, 1934. 288................| March 27, 1935. 288A...............| Do. 292................| September 11, 1935. 292A...............| Do. 293A...............| Do. --------------------+--------------------
Longwall Machines --------------------+-------------------- 185................| February 24, 1930. 185A...............| Do. 218................| March 10, 1931. 218A...............| Do. 246................| August 19, 1932. 246A...............| Do. 261................| September 12, 1933. --------------------+--------------------
Track or caterpillar mounted --------------------+-------------------- 112................| March 13, 1924. 112A...............| Do. 118................| March 12, 1925. 118A...............| Do. 125................| April 26, 1926. 125A...............| Do. 172................| April 30, 1929. 172A...............| Do. 188................| April 15, 1930. 188A...............| Do. 207................| November 14, 1930. 207A...............| Do. 216................| February 12, 1931. 216A...............| Do. 231................| August 31, 1931. 231A...............| Do. 242................| April 7, 1932. 244................| June 18, 1932. 244A...............| September 20, 1932. 253A...............| February 25, 1933. 267................| June 27, 1934. 268A...............| July 25, 1934. 269A...............| September 24, 1934. 280A...............| March 4, 1935. 297................| January 27, 1936. 297A...............| Do. --------------------+--------------------
Mine Pumps --------------------+-------------------- 140................| November 1, 1927. 140A...............| Do. 143................| Do. 143A...............| Do. 144................| Do. 144A...............| Do. 199................| August 18, 1930. 199A...............| Do. 208................| November 29, 1930. 210................| December 15, 1930. 210A...............| Do. 211................| December 17, 1930. 211A...............| Do. 213................| December 29, 1930. 213A...............| Do. 214................| January 2, 1931. 214A...............| Do. 215................| Do. 215A...............| Do. 248................| October 31, 1932. 248A...............| November 23, 1932. 264................| January 31, 1934. 264A...............| Do. 272................| October 23, 1934. 272A...............| Do. --------------------+--------------------
Rock-Dusting Machines --------------------+-------------------- 130................| November 5, 1926. 137................| July 2, 1927. 146................| January 20, 1928. 146A...............| April 3, 1928. 180................| October 30, 1929. 180A...............| January 17, 1930. 206................| November 12, 1930. 279................| February 14, 1935. --------------------+--------------------
Room and Car-Spotting Hoists --------------------+-------------------- 116................| February 13, 1925. 116A...............| Do. 164................| January 21, 1931. 164A...............| Do. 165................| Do. 165A...............| Do. 169................| April 5, 1929. 169A...............| February 26, 1934. 190................| April 20, 1930. 251A...............| January 16, 1933. 263................| January 11, 1934. 266A...............| February 27, 1934. --------------------+--------------------
STORAGE-BATTERY LOCOMOTIVES AND POWER TRUCKS (Approved under Schedules 15, 2C, 2D, and 2E) Gathering Locomotives --------------------+-------------------- 1501...............| October 11, 1921. 1502...............| November 13, 1922. 1503...............| March 24, 1923. 1505...............| April 5, 1924. 1507...............| August 20, 1925. 1508...............| March 21, 1925. 1509...............| September 25, 1925. 1511...............| November 10, 1925. 1512...............| November 11, 1925. 1513...............| February 25, 1926. 1516...............| December 28, 1926. 1517...............| February 10, 1927. 1520...............| May 27, 1929. 1521...............| June 13, 1930. 1522...............| September 12, 1930. 1523...............| December 19, 1930. 1525...............| July 25, 1934. 1526...............| December 20, 1935. --------------------+--------------------
Tandem Locomotive --------------------+-------------------- 1518...............| November 21, 1927. --------------------+--------------------
Power Trucks --------------------+-------------------- 1506...............| May 5, 1924. 1505A..............| June 21, 1926. 1510C..............| December 31, 1926. 1514...............| December 18, 1926. 1515...............| December 28, 1926. 1512C..............| September 13, 1928. 1519C..............| April 6, 1929. 1524C..............| June 25, 1934. --------------------+--------------------
JUNCTION, DISTRIBUTION, AND SPLICE BOXES (Approved under Schedules 2D and 2E) Junction Boxes --------------------+-------------------- 400................| June 16, 1928. 400A...............| August 5, 1925. 401................| May 11, 1927. 401A...............| Do. 402................| Do. 402A...............| Do. 403................| April 14, 1931. 403A...............| Do. 405A...............| December 4, 1933. --------------------+--------------------