Handy man's workshop and laboratory . Fig. 65—A well-built trestle legs should slant in two directions; their bearing location longi-tudinally being in line with the ends of the 3 by 4 piece, as shownin Fig. 65, so that the trestle will not tilt. Full dimensions forconstruction are given on the various views, and need not berepeated in the text. The notches for the legs are shown in largerscale views, and are dimensioned in such a manner that no troubleneed be experienced in cutting them out.—3A ROLLER JACKFor moving heavy timber and other uses, a roller jack will be HANDY MAN S WORKSHOP AND L
Handy man's workshop and laboratory . Fig. 65—A well-built trestle legs should slant in two directions; their bearing location longi-tudinally being in line with the ends of the 3 by 4 piece, as shownin Fig. 65, so that the trestle will not tilt. Full dimensions forconstruction are given on the various views, and need not berepeated in the text. The notches for the legs are shown in largerscale views, and are dimensioned in such a manner that no troubleneed be experienced in cutting them out.—3A ROLLER JACKFor moving heavy timber and other uses, a roller jack will be HANDY MAN S WORKSHOP AND LABORATORY 6l found very handy. It is easily constructed, any amateur beingable to do the blacksmithing required. The framework should bemade of oak or heavy tough wood; the roller of pepperidge orsour gum, a wood which will not easily split. The bottom face of. Fig. 66—Plan and end views of the roller jack the framework is in the same plane, in other words lies flat on theground at all points. The general dimensions are given in Fig. 66. The 3^ by 2-inch braces should be connected to the side pieces with mortiseand tenon joints, and secured in place with wooden drift pins. 62 HANDY MANS WORKSHOP AND LABORATORY Wrought-iron plates are bolted to the upper face of the sides,for the roller axles to wear on. These plates should project overthe sides a little as shown, to take the wear of the washers on theaxles. These washers are made from staples bent around theaxles, which are three-quarters of an inch diameter, round axles are round at one end and square at the other; thesquare end being driven into the roller with a driving fit. Thebearing ends of the axles are % inch in diameter.—3 A STEAM BOXIt is sometimes necessary to bend or twist wood into variousshapes to suit certain work. Long or short strips, and even planks,
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