Edw. J. Hopkins
Published: 2013-09
Total Pages: 286
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1855 edition. Excerpt: ...by which means they are supported and steadied, without the touch being made heavier or more sluggish. A key down without 815. Occasionally a key will be found to have sunk, i. e. producing any sound....., ., .... TM, it will be down, without, however, causing any ciphering, lhis will arise from some connecting portion of the key movement having slipped or given way. For instance, it will occur if either of the tracker-hooks is broken; and it can, in that case, soon be remedied with a fresh piece of wire. Or, if the rollers are provided with wooden roller-arms, and the union of the roller-arms with the trackers is effected by means of tapped-wires and buttons, it will sometimes arise from the button slipping down the tapped-wire. In this case, all that is necessary to correct the disarrangement, is to screw the button up again, which is done by turning it to the right. The tracker, however, should be held firmly, immediately above the tapped-wire, to prevent its twisting, or a cause of second derangement may arise while the first is being removed. A dumb key will sometimes be caused by the breaking of a square, a casualty to which squares are very liable, if they are formed of one piece of wood only, so that the grain of the wood necessarily crosses one of the arms. To cure this fault thoroughly, and prevent its recurrence, a new and stronger square must be provided. The touch of the ma-816. In warm, dry weather, the touch sometimes becomes SntlS "shallow," and the pallets do not open sufficiently; contoo deep at others. sequently the pipes sound out of tune, from the inadequate supply of wind, particularly in the bass. In cold, wet weather, the touch, on the contrary, becomes " too deep;" which change renders the...