The mechanic's tool bookWith practical rules and suggestions for use of machinists, iron-workers and others . ontact so as to re-tain it in place. The usual method of holding forms of sheet-metal, such as patterns for various articles or thearticles themselves, is to place a block of wood ora piece of plank between the jaws of the vise, andupon the smooth upper surface of this block in-sert a number of pieces of wire, or even smallnails, which shall so hold or retain the work thatit may be operated upon by the files or polishingimplements, as is required. Where the articles aresmall, and there
The mechanic's tool bookWith practical rules and suggestions for use of machinists, iron-workers and others . ontact so as to re-tain it in place. The usual method of holding forms of sheet-metal, such as patterns for various articles or thearticles themselves, is to place a block of wood ora piece of plank between the jaws of the vise, andupon the smooth upper surface of this block in-sert a number of pieces of wire, or even smallnails, which shall so hold or retain the work thatit may be operated upon by the files or polishingimplements, as is required. Where the articles aresmall, and there is a quantity of them, it will FILING A FLAT SURFACE. 25 pay, perhaps, to fit up a wooden block; yet, evenwhen so fitted, it is by no means a perfect methodof holding* work. Where the articles to be wroughtupon are large and of various shapes and charac-ters, and especially if they are very thin, it takessome time to arrange and fasten them upon thewooden blocks. The cut represents a tool designed to hold workof this character. It is made of cast-iron, andwhen viewed from one of its ends is of a T-form,. Fig. 4. and its length or size is proportionate to its in-tended use. The lower or vertical portion is in-tended to be held between the jaws of the vise,and the flat surface of the upper part is nicely andevenly planed to receive the work when placedupon it. Two stout straps, made of iron or steel,are fitted to slide upon the projecting sides, andcan be confined in any place upon the flat surfaceof the tool by means of set screws, which are in-serted at the under side of the implement at eachend of the sliding strap. If it be so desired, thesestraps upon the side where they come in contact 26 mechanics tool book. with the plate, can have teeth cut upon them sim-ilar to the teeth of a file, and they will then holdthe work very secure; but for finished worksmooth straps must be used, as these teeth wouldindent the surface and mar the finish of the work,(t might be well, perhaps,
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1868
