A good way to get glass cut to exact size is to mark out the size on paper and then place the paper under the glass The straightedge is then easily placed to guide the cutter exactly where it should go

Fig. »0.—Cutting «lass. The glass is first scratched by drawing the glass cuttcr along the straightodge. as at A. Firm moderate pressure is required. The glass is then broken by applying pressure with the two hand» as at B% or by moving it to the edge of the bench, with the scratch exactly over the edge, and applying pressure down on the overhanging part as at C.

Fig. »0.—Cutting «lass. The glass is first scratched by drawing the glass cuttcr along the straightodge. as at A. Firm moderate pressure is required. The glass is then broken by applying pressure with the two hand» as at B% or by moving it to the edge of the bench, with the scratch exactly over the edge, and applying pressure down on the overhanging part as at C.

Questions

99. (a) What are the two main ingredients of paint? (6) How do these two ingredients act as the paint dries? (c) What are the purposes of thinners and driers when added to paint? (d) Under what conditions is boiled linseed oil used instead of raw oil in paint?

100. Under what conditions are ready-mixed paints generally more satisfactory than paints compounded and mixed on the job?

101. What kind of weather is best, for painting?

102. What kinds and sizes of brushes arc usually best for general painting on the farm?

103. (a) What care should a brush receive if painting is to be stopped for a few minutes? (6) If painting is to be stopped for several hours or a few days?

104. How should brushes be cleaned and stored?

105. What preparation should a surface receive before it ia painted?

106. How is ready-mixed paint prepared for use on the job?

107. What material or materials are commonly added to ready-mixed paint for the first-, or priming coat? Why?

108. (a) How long is usually required for drying of the priming coat? (6) What material is commonly added to the paint for the second coat, in caw it is to be followed later by a third coat? Why?

109. (a) How long is usually required for the drying of the second coat? (b) What trouble may be encountered in case too much turpentine is added to the paint for the third or last coat?

110. (a) Explain and be able to demonstrate just how to hold a paintbrush. (6) How deep should the bristles be dipped into paint? (c) What kind of strokes should be made with the brush?

111. Name some of the most common painting troubles and give their causes.

112. How may the amount of paint required for a building be estimated?

113. (a) In what respects is metal paint usually different from wood paint? (6) What special precaution should be observed before painting metal surfaces?

114. (a) What are the common kinds of wood stains? (6) What kind is usually most satisfactory? Why?

116. (a) What is the difference between paint and varnish? (6) What precautions slK>uld be observed in the selection and application of varnishes?

116. (a) What are the differences between enamel, paint, and varnish? (b) How are lacquers and quick-drying enamels different from paint?

117. (a) What are the main uses of whitewash? (6) What are the principal ingredients of whit-ewash?

118. What are the main points to be observed in painting with a compressed-air paint gun?

119. (a) Why should the rabbet of a window frame be oiled with linseed oil before new putty is applied? (6) What tools and materials are required for replacing a glass in a window frame?

120. (a) Explain and be able to demonstrate how properly to hold a glass cutter. (6) Why should only moderate pressure be exerted when using a glass cutter? (c) Why should the cutter not be drawn over a mark or scratch a second time? (</) After the glass is properly scratched with a cutter, how may it be broken along the line? (Two methods.) (e) Explain a simple method for getting glass cut to exact size.

References

Ross, Dent, and White: "Mechanical Training." Griffith: "Essentials of WckxIworking."

U.S. Department of AgricFarmers' Hull. 1452, Painting on the Farm. Cook, Scbanton, and McColly: "Farm Mechanics Text and Handbook."

Woodworking Tools and Installation Tips

Woodworking Tools and Installation Tips

There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.

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