. Illustrated catalogue and price list of bells, electric gas burners, batteries, push buttons ... . This bell is purely electrical,therefore requires no winding ofclock work. The hammer first re-cedes from the gongr and withaccumulated force strikes a power-ful blow, obtaining a full volumeof sound. The vibrations can beregulated by raising or loweringthe hammer rod. Cat. No. prices 741. 10 Inch, $20 00 742. 12 , . 30 00 743 14 36 00 744. 18 50 00 The Vigilant Bell Single Stroke. Vibrating. Com-bination. Series. For Railroads, Depots, Factories,Mines, Fire Alarms, etc. The construction of thi
. Illustrated catalogue and price list of bells, electric gas burners, batteries, push buttons ... . This bell is purely electrical,therefore requires no winding ofclock work. The hammer first re-cedes from the gongr and withaccumulated force strikes a power-ful blow, obtaining a full volumeof sound. The vibrations can beregulated by raising or loweringthe hammer rod. Cat. No. prices 741. 10 Inch, $20 00 742. 12 , . 30 00 743 14 36 00 744. 18 50 00 The Vigilant Bell Single Stroke. Vibrating. Com-bination. Series. For Railroads, Depots, Factories,Mines, Fire Alarms, etc. The construction of this bell is suchthat the length of the stroke and tensionis adjustable. Cat lo. PRICES 745. 3 Inch, Single Stroke, . $ (J 00 746. 4 6 74 747. 5 . 7 50 74s. 6 . 9 00 749. 8 . 11 20 750. 10 . 17 20 751. 12 . 18 00 752. 14 . Prices upon application as a vibrat-ing, combination or series 50, 52 & 54 NORTH KOlRTH STREET, PHILADELPHIA, PA. 21 ELECTRO-MECHANICAL GONGS For Hotels, Mines, Schools, Factories and Fire Alarm Systems. Single Stroke or Continuous Ringers
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