RY] 



(42) 



Sanding Machines. Consists of one or more drums covered 

 with sand-paper. >The wood is hold against the surface of 

 the drum and passed along either by hand, feed rollers or 

 a travelling bed. 



.'unken Saw. A term applied to a circular saw which runs 

 out of the perpendicular when in motion. Used for making 

 large rough grooves in squared timbers, etc., In America 

 called a " wobble saw." 



y Cooperage. Converted hardwood, or softwood, or mixed, 

 not necessarily " dry " in condition, but allocated to the 

 making of " tubs," " casks," " barrels," " kits," etc., for 

 il/'t/ goods, i.e., not for wines, spirits, oils or liquids, but 

 hardware, crockery, fruit, fish (wet or dry), and the hundrod- 

 and-one things that come under the term " merchandise." 

 Like cooperage for liquids, the pails of dry cooperage retain 

 the old nomenclature of " stave," " lag," " hoop," etc. 



ry Emery Grinder (also known as Moulding Iron Grinder). 

 A machine in which wheels of emery or other abrasive 

 material are used for sharpening tools, cutters and moulding 

 irons. For the latter purpose a number of wheels are pro- 

 vided, having different widths and shapes on their edges. 



ry Floated. Canadian pine and spruce deals that have dried, 

 after having been conveyed on rafts, floated above or on 

 the level of the water. 



ry Kiln. A structure in which wood is dried by artificial heat. 



ry Rot. Decay in timber brought about by animal or insect 

 action, otherwise the " Furniture Beetle " (which see). 

 Another form, which should properly speaking be called 

 " Wet rot," owes its inception to vegetable disintegration. 

 See " Fungi," " Worm Holed, Wormy or Wormed." 



L'y Rot Preventive. To arrest the progress of dry rot one 

 authority recommends that the timber be subjected to 

 heat of 300, to destroy all reproduction of fungus. An- 

 other recommends an ounce of corrosive sublimate (bichloride 

 of mercury) to a gallon of water laid on hot ; no other metallic 

 solution should be mixed with it. A solution of sulphate 

 of copper (commonly called blue vitriol), in the proportion 

 of about half a pound of sulphate of copper to one gallon 

 of water, used hot, makes an excellent wash, and is cheaper 

 than the preceding one. A strong solution of sulphate of 

 iron is sometimes used, but is not so effectual as that of 

 copper, and sometimes a mixture of the two solutions has 

 been used. Coal tar is said to have been found beneficial, 

 but the strong smell is a great objection to its use. See 

 " Timber, Preservation of." 





