MOU] ( 86) ______^ 



Mortise or Mortise-hole. A cut or hollow place made in timber 

 as the receptacle of a " tenon " (which see). 



Mortise-chisel. A hand-power or machine tool or implement 

 specially made and shaped for cutting or sinking mortises. 



Mortising and Boring Machine. A machine capable of boring a 

 hole or of cutting a mortise in a piece of wood. These are 

 of different types: actuating chisels, chains, hollow chisels, 

 and revolving bits. 



Mottle. Figure transverse of the fibres, doubtfully caused by the 

 action of wind upon the tree. Distinctive names are given 

 to the various forms the figure takes. See "Mahogany 

 Figure." 



Mould. (1) The short or abbreviate of "moulding "(which 

 see). (2) A matrix of sand or other substance in which to 

 found or cast objects in brass, iron, lead, plaster, cement, 

 etc. See " Stick and Sticking," " Planting Mouldings " 

 and " Scratch Mouldings." 



Moulding. A general term applied to all the varieties of outline 

 or contour given to angles of various subordinate parts and 

 features of buildings. The varieties are legion, the most 

 popular worked in wood are the stragal or bead, the Ogee, 

 Reverse Ogee, Ovalo, Scotia, and Torus. In high-class work 

 they are capable of considerable enrichment ; instance, " Egg 

 and Tongue " and " Egg and Spear " mouldings. 



Moulding Iron Grinder. See " Dry Emery Grinder." 

 Moulding Machines. Machines capable of cutting on four edges 

 at one time, and with pressures specially designed for dealing 

 with mouldings. See " Moulding Machines Single and 

 Double Spindle." 



Moulding Machines Single and Double Spindle. In which one 

 or two vertical spindles are used for planing and moulding 

 wood. More generally used for wood of irregular form. 

 The object of two spindles on one machine is to enable 

 irregular work to be planed as nearly as possible with the 

 grain. This is achieved by running the spindles in opposite 

 directions. 



Mountain Ash (Sorbus aucuparia or Pyrus aucuparia). A firm 

 and fine-grained wood found in Evirope, Asia and N. America, 

 but more cultivated for underwood than for timber. Thrives 

 best in mountainous districts even at an altitude of 2,500 

 ft. Used by wheelwrights, turners, and (when in sufficient 

 size) for the same purposes as ash ; also for hop poles, 

 broom and rake handles, bows (for archery) and hoops, 

 Known as the Rowan Tree, Roan Tree, Wiggen Tree, Quicken 

 Tree, Roddan, Wichen Tree, Quick Beam, Fowler's Service 

 Tree and the Wild Sorb. 



