Practical bookbinding : a text-book intended for those who take up the art of bookbinding, and designed to give sufficient help to enable handy persons to bind their books and periodicals . of the corner angles shouldbe marked through the tracing paper. Before pro-ceeding further with explanations as to the correctmethod of using the various finishing tools we willexplain an important preliminary detail, viz., theheating of finishing tools. Heating Finishing Tools.—To heat these toolsthe finishers stove, seen in Fig. 84, is shown as anexample of the kind now in use. The heat is ob-tained from
Practical bookbinding : a text-book intended for those who take up the art of bookbinding, and designed to give sufficient help to enable handy persons to bind their books and periodicals . of the corner angles shouldbe marked through the tracing paper. Before pro-ceeding further with explanations as to the correctmethod of using the various finishing tools we willexplain an important preliminary detail, viz., theheating of finishing tools. Heating Finishing Tools.—To heat these toolsthe finishers stove, seen in Fig. 84, is shown as anexample of the kind now in use. The heat is ob-tained from a jet of gas conveyed by a tube whichis attached to the stove. A practical knowledge of 8 H4 PRACTICAL BOOKBINDING. the correct heat at which to apply the tools is abso-lutely essential to ensure success, and such knowledgecannot be obtained from a book, as it is very largelya matter of experience. We cannot, therefore, pro-mise much help in this direction ; but in addition tothe instruction here given, the beginner must, inspite of many failures, continue to persevere, until thisdifficulty of obtaining correct knowledge of the exacttemperature at which to apply the tools has been. Fig. 84. mastered. First we may add, as a word of caution, thatit is a common fault with beginners to use the tools toohot. The heat required varies according to the kindof leather to be tooled. For calf and other porousleathers the tools will need to be hotter than formorocco. As a further help to the beginner, thefollowing degrees of heat may be mentioned :— (1) Just warm. After the tool has been heatedon the stove, apply a drop of water to the shank of the PRACTICAL BOOKBINDING. 115 tool, and if the moisture just dries off without hissing,it may be considered to be just warm. (2) Should a hissing sound be produced after theapplication of the drop of water, it has passed theabove stage, and may be termed of mediumheat. (3) When the water placed on the tool hisses, anddries up instantly, the too
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbookbinding, bookyear
