MMI Preparatory School - Minamek Yearbook (Freeland, PA)

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HAZLETON AUTOMATIC CONTROL. FOR YOUR MINE PUMPS! The photo below shows two HAZLETON 14 -4 Stage Mine Pumps located in two under- ground pump rooms of a large Anthracite coal company. Both pumps are equipped with com- plete Hazleton automatic priming accessories and driven by 1000 H. P. line-start motors. Each pump is independently primed by a HAZLETON 50 CFM priming pump, priming thru a Hazleton Vacuum Breaker and HAZLETON priming valves. The priming cycle can be initiated either manually or automatically, but once initiated, the priming um starts and stops automatically and the main pump starts when it is fully primed. P P ' ' U m is rotected against an excessive period of operation by HAZLETON The priming pu p p control and the priming cycle is automatically repeated should the pump fall to deliver . . . . . 1 t r on the first prime The number of priming attempts is limited. When the imit is wa e . reached, no further priming attempt is made, however, an alarm is sounded on the surface. ' ' ' f h d m lete loss of water. During operation, the pumps are protected against loss o ea or co p The use of bearing thermostats completes the list of protective features. Of note is the fact that these HAZLETON pumps, each deliverlng from 5200 G.P.M. to 7600 G.P.M., are automatically operated, without any adjustment in the priming equipment, under suction conditions varying from 20 ft. lift to 70 ft. head. COMPLETE AUTOMATIC CONTROL EQUIPMENT FROM THE SIMPLEST TO THE MOST ELABORATE. ASK FOR DATA SHEET. .. Jeff Q, 1 1 tl 1 ,. 5 it f 1 l la rl 1 L rl u I li 9 li l l li l gl fl f l Ll L 4 'D 1. t I t ga U B J u 4 7 4 l 5 .UF O 'I OTC

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iOL Psi , i L - ' '- Fully primed. 'fill in by HAZLETON 'mp fail to deliver r 3.4 ff: Vhfn the limit is -.V ,n-if-i -in the surface. ' ff fiplrlvr l05S of W3lCl'- v-4 V 15 5,411 3200 G.P.Nl.1o 13, pyiming equipment, IPMENT FROM XTE. ASK FOB L Compliments of M 1' th o e an a Newspaper A Commumty Instztutzon DALLAS PA xf Q: 45 If .-. ' ' . J, J . , . 5 r