| 单词 | rising board |
| 释义 | > as lemmasrising board rising board n. †(a) Clockmaking = seat-board n. (a) at seat n. Compounds 2 (obsolete); (b) a board forming part of a bucket of a waterwheel, placed at an angle to the float-board so as to prevent water flowing over the float-board into the inside of the wheel. ΘΚΠ the world > time > instruments for measuring time > clock > [noun] > part(s) of nut1428 peise1428 plumbc1450 Jack1498 clockwork1516 larum1542 Jack of the clockhouse1563 watch-wheel1568 work1570 plummeta1578 Jack of the clock1581 snail-cam1591 snail-work1591 pointer1596 quarter jack1604 mainspring1605 winder1606 notch-wheel1611 fusee1622 count-wheel1647 jack-wheel1647 frame1658 arbor1659 balance1660 fuse1674 hour-figure1675 stop1675 pallet1676 regulator1676 cock1678 movement1678 detent1688 savage1690 clock1696 pinwheel1696 starred wheel1696 swing-wheel1696 warning-wheel1696 watch1696 watch-part1696 hoop-wheel1704 hour-wheel1704 snail1714 step-wheel1714 tide-work1739 train1751 crutch1753 cannon pinion1764 rising board1769 remontoire1774 escapement1779 clock jack1784 locking plate1786 scapement1789 motion work1795 anchor escapement1798 scape1798 star-wheel1798 recoil escapement1800 recoiling pallet1801 recoiling scapement1801 cannon1802 hammer-tail1805 recoiling escapement1805 bottle jack1810 renovating spring1812 quarter-boy1815 pin tooth1817 solar wheel1819 impulse-teeth1825 pendulum wheel1825 pallet arbor1826 rewinder1826 rack hook1829 snail-wheel1831 quarter bell1832 tow1834 star pulley1836 watch train1838 clock train1843 raising-piece1843 wheelwork1843 gravity escapement1850 jumper1850 vertical escapement1850 time train1853 pin pallet1860 spade1862 dead well1867 stop-work1869 ringer1873 strike-or-silent1875 warning-piece1875 guard-pin1879 pendulum cock1881 warning-lever1881 beat-pin1883 fusee-piece1884 fusee-snail1884 shutter1884 tourbillion1884 tumbler1884 virgule1884 foliot1899 grasshopper1899 grasshopper escapement1899 trunk1899 pin lever1908 clock spring1933 1769 W. Ludlam Astron. Observ. St. John's Coll. Cambr. 37 As the back of the case is a single board only half an inch thick, and the frame-plates on which the pendulum hangs, are fastened to it, to strengthen that part, a mahogany board..was put cross the back (but not glued to it) just above the rising board. 1798 Fragm. Illustr. Holy Script.: App. Calmet's Dict.:1st Hundred 116 With these boards the water rises also: for it cannot flow out on the side, nor at the top, nor at the bottom, since these are enclosed; neither can it flow out behind, since there the rising board stops it. 1813 ‘T. Martin’ Circle Mech. Arts 591/1 After having screwed down the frame of the work to the rising board as usual, the crutch must be held fast..so as to bring the clock into beat. 1825 ‘J. Nicholson’ Operative Mechanic 88 There are other boards placed obliquely which extend..to the rim of the wheel, and nearly fill the space between one float-board and the next. These are called rising-boards. 1840 Penny Cycl. XVII. 404/2 A clock..should be securely fixed. The common mode is to fasten the case by strong bolts, under the rising board and again about as low as the pendulum bob, to a stone pillar or through a wall. 1983 T. S. Reynolds Stronger than Hundred Men i. 12 (caption) Overshot vertical water wheel... (k) rising boards, boards radial to the shaft in overshot wheels, nailed to the soal and forming the bottom of the buckets. < as lemmas |
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