(1)Degree of reefing employed with a COMMON SAIL which refers to the pointed outline assumed by the outer end of the sailcloth. Only half the area of the sail cloth is spread (SHORT POINT).
(2) see COMMON SAIL.
An iron or wood, 3 or 4-sided, spindle terminating in a fork, crutch or nut head, which is fitted vertically over the rhynd of an underdriven millstone; employed to agitate the shoe thus feeding grain to the eye of the stones. Known as an AGITATOR in northern counties.
A light skeleton roll or cylinder covered with wire which presses gently on the paper while still wet. It helps to improve the formation of the sheet and can be used to impress a WATERMARK on paper made on a FOURDRINIER paper-machine.
A vertical or near vertical grill, usually of iron bars and sometimes covered with a wire screen to prevent debris, twigs and leaves reaching a waterwheel, or clogging or damaging the machinery of a DRAINAGE MILL.
In hand papermaking is the removable frame around the MOULD which helps to retain the PULP on the mould's surface while the water drains through. On a FOURDRINIER machine, the deckle straps perform the same function on the moving wire.
When the deckle is removed from the MOULD and the paper is couched, the edge of the paper becomes thinned out in a slightly wavy line which is the true DECKLE EDGE, an effect found only in hand made paper.
An C11th survey carried out to ascertain the taxable potential of the country; records about 6,000 watermills (a watermill in this context refers to the number of pairs of stones, not necessarily buildings).
(1) see DRESSING (the)
(2) To remove bran and coarse particles from WHOLEMEAL to produce FLOUR. See DRESSING.
(3) The patterns of LANDS and FURROWS on the grinding face of MILLSTONES. See RIGHT-HANDED MILLSTONES and LEFT-HANDED MILLSTONES.
(1) Of FLOUR: The process of separating bran and coarse particles from MEAL to produce white or some intermediate grades of flour.
(2) Of STONES: The style or pattern of the FURROWS, LANDS and CRACKING on a millstone. See HARPS, SICKLE, STRAIGHT, FURROWS, LANDS & CRACKS.
(3) Of STONES: The process of preparing, restoring or sharpening the grinding faces of a MILLSTONE. Carried out by a STONE DRESSER.
(4) To clean and prepare the working edge of a cutler's or engineer's grindstone.
A circle, of slightly smaller diameter than the PITCH-CIRCLE, scribed on to "blank" wooden teeth when cogging a wheel. From the intersections of this line with the centre lines of the teeth, the working profiles of the teeth may be struck, using dividers.
(USA term) The method of operating roller mills so that they are run with the longer face of the corrugated cutter edge on the faster roll meeting the shorter face of the edge of the slower rotating roller. Called BACK TO BACK milling in the UK.