keuper (eu as 61)

[Ger.] 1. Geol .: The name given in Germany to a series of beds constituting the uppermost of the three series of strata from which the Trias derives its name. In Wurtemberg it is about a you sand feet thick. Albert i divides it into limestone, gypsum, (4) The roughing on the under side of a veneer, which is made by a toothing-plane, and is designed to give the glue a better chance of adhering. (5) One of the many wedge-shaped pieces or striking-plates beneath the ribs of a bridge centering; by driving them out the centering is struck, and the arch left self-sustained. 2. Masonry : The highest stone of an arch; the keystone. 3. Machinery: (1) A joggle-piece forming a lock or draw-pin in a joint. [HOOK-BUTT.] (2) A wedge-piece of iron used for tightening the bra es of a bearing. (3) A fastening piece, such as a wedge or cotter in a chain; a forelock. (4) A piece sometimes used in a mortise in connection with gibs, in attaching a strap-head to a connecting-rod. (5) A fin or wedge fastening a crank on its shaft. 4. Music : key (1) A mechanical contrivance for closing or opening ventages, as in flutes, clarinets, ophicleides, . By means of keys on such instruments, apertures too remote to be reached by the outstretched fingers are brought under control of the player. (2) A lever which brings the pallets of an organ under the control of the hand or foot of an organist. (3) A lever which controls the striking apparatus of a key-stringed instrument. In the harpsichord it acted on the jack; in the pianoforte it acts on the hammer. (4) The wrest or key used for tuning instruments having metal pegs. Its end is hollowed out so as to fit over the four-sided end of the peg, and the cro bar with which it is surmounted gives leverage to the hand of the tuner, so that he is enabled to tighten or loosen a string, or (in the case of a drum) slacken or strain a parchment. (5) The sign placed at the commencement of the musical stave which shows the pitch of the notes, was originally called a clavis or key. This sign is called in modern music a clef. [CLEF.] (6) Key, in its modern sense, is the starting point of the definite series of sounds which form the recognized scale. Different starting-points require the relative proportion of the steps of the scale to be maintained by means of sharps or flats in the signature. The key of C major requires no flats or sharps for this purpose, hence it is called the normal key. ( Stainer & Barrett .) 5. Plast .: That portion of the rendering or first coat of hair plaster which forces its way between the laths, and holds the body of the plaster in place. 6. Rail. Engin .: A wedge-shaped piece of wood used to keep the rail tight in the chair. 7. Teleg .: A device for breaking and closing electric circuits, so that the current may be interrupted to give signals. 8. Well - boring : A bent bar of iron spanning the boring-rod just beneath a coupling, and serving to support the train of rods at the bore-mouth. (1) Gold key : The official badge of a chamberlain. "Be cautious how you show yourself In public for some hours to come-or hardly Will that gold key protect you from maltreatment." Cole ridge: Piccolo mini , i. 12. IMG:content-0225.png:[blocks in formation] Music: A bra wind instrument with keys, usually seven. It will traverse chromatically a compa of more than two octaves, beginning from B natural beneath the stave up to the C above the stave. The bugle with pistons or with cylinders has a lower compa than the preceding.