. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. Ni N2 have theirrespective batteries, Bi Ba, butwith opposite poles toward J; soc c that if C is magnetized in one direction by one swing of the pendulum, it will be magnetized in theopposite by the other, thus making a synchronal beat by the con-trolled clock. 694. R
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. Ni N2 have theirrespective batteries, Bi Ba, butwith opposite poles toward J; soc c that if C is magnetized in one direction by one swing of the pendulum, it will be magnetized in theopposite by the other, thus making a synchronal beat by the con-trolled clock. 694. REPEATING CLOCK. M, air-bulb tube with piston formoving the stop lever K. O, a push-button switch for operating the lever K by the electro-magnet. At rest,the different parts are in the positionshown in the diagram (No. 695), and thewheelwork is arrested by a snug fixed tothe piece H. Upon the piece. A, are fixedtwo pins. A and A, which are so ar-ranged that after lifting the detent, G,the latter may drop just at the momentat which the hour hand is upon 12 or soon as it is raised, the detent, G,carries along with it the stop H. At thismoment there occurs the first start of thewheelwork, the detent, G, falls and setsthe wheelwork free. The piece, H, re-mains raised (the arm, H^, engaging with the teeth of the rack) and. HOROLOGICAL, TIME DEVICES, ETC. 265 permits the wheelwork to continue its revolution. The rack is raised tooth by tooth by the click, I, fixed up-on the second wheel. To every revolutionof the latter there corresponds one blowstruck upon the bell of the clock. As soonas the rack is lifted high enough, the piece,H, falls to its position of arrest in stoppingthe wheelwork. In order to cause one strokeonly to be given at the half hour, the pin, A,is fixed upon a smaller diameter, so as toraise the pieces, G and H, sufficiently topermit of the first start, but not enoughto cause the rack to fall. The wheel-work is therefore arrested as soon as thesecond wheel has
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
