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Lu-Mi-Num Lug Clamp Bottom RSide
Lu-Mi-Num Lug Clamp Bottom Top Marking
Lu-Mi-Num Lug Clamp Bottom Back
Lu-Mi-Num Lug Clamp Bottom
Lu-Mi-Num Screw Bottom RSide
  Lu-Mi-Num Screw Bottom LSide.jpg - LUMINUM SCREW BASE - Cast aluminum lamp marked TRADEMARK LU-MI-NUMLAMP on both sides of lamp, marked FRED R.BELT COMPANY CHICAGO, ILL. MADE IN USA on top and FRED R. BELT COMPANY PATENTS PENDING CHICAGO USA on bottom, cast aluminum reflector, with hard to find screw on base (The "Lu-mi-num" brand cap and hand lamps produced by the Fred R. Belt Company in Chicago, Illinois represent a substantial change from the standard carbide lamp designs of the day. These lamps were fabricated from an alloy of aluminum and copper with a die-cast body. The earliest lamps used a screw thread attachment of the top and bottom as shown here but it is thought these lamps were a trial option before the final design using the double cam lock attachment was adopted for production. The screw thread lamps are far more scarce and much harder to find. The Lu-mi-num lamp was patented (#1,612,694 and #1,612,695) by Belt on Dec. 28,1926. The unusual ribbed, heat dissipating design thought by some to resemble a hand grenade is distinctive to this lamp. The Belt Co. left the mine lamp business about 1933. See Clemmer, American Miners' Carbide Lamps, p 67)  
Lu-Mi-Num Screw Bottom Top Marking
Lu-Mi-Num Screw Bottom Back
Lu-Mi-Num Screw Bottom Bottom
Lu-Mi-Num Spade Mount LSide
Lu-Mi-Num Spade Mount RSide

Lu-Mi-Num Screw Bottom LSide | LUMINUM SCREW BASE - Cast aluminum lamp marked TRADEMARK LU-MI-NUM LAMP on both sides of lamp, marked FRED R.BELT COMPANY CHICAGO, ILL. MADE IN USA on top and FRED R. BELT COMPANY PATENTS PENDING CHICAGO USA on bottom, cast aluminum reflector, with hard to find screw on base (The "Lu-mi-num" brand cap and hand lamps produced by the Fred R. Belt Company in Chicago, Illinois represent a substantial change from the standard carbide lamp designs of the day. These lamps were fabricated from an alloy of aluminum and copper with a die-cast body. The earliest lamps used a screw thread attachment of the top and bottom as shown here but it is thought these lamps were a trial option before the final design using the double cam lock attachment was adopted for production. The screw thread lamps are far more scarce and much harder to find. The Lu-mi-num lamp was patented (#1,612,694 and #1,612,695) by Belt on Dec. 28,1926. The unusual ribbed, heat dissipating design thought by some to resemble a hand grenade is distinctive to this lamp. The Belt Co. left the mine lamp business about 1933. See Clemmer, American Miners' Carbide Lamps, p 67) Download Original Image
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