other days it may be as high as twenty degrees. If the clock requires for its operation the lowering of three balls each day the apparatus will be so arranged that with an average daily temperature variation of, say, six degrees, four balls will be raised, of which three will operate the power transmission wheel and one will be held in storage. With a variation of twelve degrees, eight balls will be raised, of which five balls will be left in storage. If the ball storage runways each have a holding capacity for one hundred balls, and the variation in temperature is greater than required, the balls will soon be lifted from the lower to the upper runways. Assuming that on certain days there will be no variation in temperature, and as a result the energy-storing wheel should not revolve, the running of the clock will not be interrupted, for the power transmission wheel will continue revolving, taking its power from the balls in storage. I wish it understood that I do not confine myself to the precise details of construction and arrangement of parts as herein set forth and described or to the materials specified, as modification and variation may be made without departing from the spirit of the invention as defined by the appended claims. [Illustration: _Fig. 13._ BANGERTER’S PERPETUAL TIME CLOCK] [Illustration: _Fig. 14._ _Fig. 15._ BANGERTER’S PERPETUAL TIME CLOCK] [Illustration: _Fig. 16._ BANGERTER’S PERPETUAL TIME CLOCK] [Illustration: _Fig. 17._ _Fig. 18._ _Fig. 19._ _Fig. 20._ BANGERTER’S PERPETUAL TIME CLOCK] [Illustration: BANGERTER’S NON-ELECTRIC REGULATOR TIME CLOCK--ANNIVERSARY SELF-WINDING. Patent Applied for, 1911.] BANGERTER’S NON-ELECTRIC REGULATOR TIME CLOCK ANNIVERSARY SELF-WINDING The Bangerter Anniversary Self-Winding Regulator deserves this title because its construction embodies all the principles essential to a Regulator to be the very best time-keeper. “Graham dead-beat escapement” and a pendulum provided with means for keeping its gravity always the same length, overcoming the variation which change in temperature invariably brings about. Another great improvement is the daily Self-Winding System, winding a weight which is the only means of maintaining an even pull to the delicate works of the clock. Wound by a force which requires attention one minute a year only. This invention relates to clocks, and particularly that class wherein a pendulum escapement is employed and wherein the clock-train is weight driven. It is well known to those skilled in the art that the most accurate and reliable clocks are those which are driven by a weight. Most of such clocks are provided with a plurality of weights, one being used to supply the energy necessary to strike the time, and the other the energy for operating the clock-train, and in clocks of such construction they have to be wound frequently, usually either daily or weekly.