. Scientific American Volume 78 Number 01 (January 1898) . ng. It may be laid along the moulding, across awindow or door, within the cornice, above the shelvesin a store, as in our illustration, without attracting theeye, or in any way interfering with the decorative fea-tures of the buildkig. For detecting a fire, due tospontaneous combustion in the coal bunkers or holdof a ship, the wires would be laid in pipes which wouldprotect them from rough usage but leave them exposedto the action of heat. The various patents whichcover this device are owned by the Montauk MultiphaseCable Company, 100
. Scientific American Volume 78 Number 01 (January 1898) . ng. It may be laid along the moulding, across awindow or door, within the cornice, above the shelvesin a store, as in our illustration, without attracting theeye, or in any way interfering with the decorative fea-tures of the buildkig. For detecting a fire, due tospontaneous combustion in the coal bunkers or holdof a ship, the wires would be laid in pipes which wouldprotect them from rough usage but leave them exposedto the action of heat. The various patents whichcover this device are owned by the Montauk MultiphaseCable Company, 100 Broadway, New York, to whomwe are indebted for the particulars given above. ) 1898 SCIENTIFIC AMERICAN, INC. January i, ^tuniiixt %mnum. FIBE ENGINE BALL BEABINGS FOB THE NEW YOBKFIBE DEFABTMENT. The remarkable results obtained by the use of ballbearings in the bicycle have led to a great many at-tempts to apply the device to heavy machinery and towearing parts which are subject to heavy loads. It cannot be said that the ball bearing has proved as. FIBE ENGINE OF THE NEW YOBK FIBE DEFABTUENT-WHEELS FITTEDWITH BALL BEABINGS. successful for heavy as for light work, and the failurehas been due to the difficulty in providing a construc-tion which would stand the great wedging or burstingstrain which is exerted upon the balls and ball the case of railroad cars, or the heavy drays used incity traffic, where the wheels and bearings are sub-jected to the shock of passing over joints, switchesand crossings, or pounding over badly worn paving, ithas been extremely difficult to provide balls and racesthat would not cut or fracture, and an adjustment thatwould remain secure when once it was set up. We present the accompanying views of ball bearingin which a successful attempt has been made to over-come these difficulties. It was designed and patentedby Br. W. J. Tripp, of No. 359 Lenox Avenue, NewYork City, and has recently been applied to fire engineNo. 18, of the New York
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