his gear wheel also projects a lug use of the apparatus shown in the cut accompanying en adapted to engage, at each revolution of the wheel, an this article. In general terms, it consists of an arrange- Conserve Your Force. arm having an offset, on which rests the lower end of ment for projecting… … APPARATUS FOR ILLUSTRATING NEWTON’S LAWS. on which the bags to be filled are These are attached to the two sets hung. The amountof grain passed of pins, as shown in the engraving, into the bag is shown by the scale, a registering device so that the sliding block is drawn forward and down- habit of…
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