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are in motion the hold-down remains in a fixed position. It can be operated from either end of the shear by means of the small hand wheels. It is arranged with eccentrics, so that when the hold-down is brought against the plate it holds itself firmly in position.

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It is fitted with side extension tables for supporting long sheets of metal.

Distinct lines are planed in the bed plate parallel with the blades, to aid in adjusting the gauges.

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Adjustable gauges are provided for the side extension tables, to be used when cutting long sheets.

The treadle is arranged so that the connecting rod can be instantly changed to give increased leverage for cutting heavy metal. These shears are furnished with an extension treadle, as shown in the illustration. This extension will be found useful when cutting metal heavier than No. 18 gauge.

Combined Bench and Slitting Shears. The shears shown in Fig. 114 are constructed on entirely new principles. They surpass all other shears in the variety of work performed. Their superiority over other shears in sheet metal cutting is as follows:

They will do the work of ordinary bench shears, over which they have the following advantages: The length of cut is longer to the same movement of the hand, the same pressure of the hand will cut thicker stock, they cut with the same ease at all points of the cut, while ordinary bench shears cut harder near the point than near the bolt.

The lower blades of these shears are stationary, so that when cutting to line the mark may easily be followed with accuracy. The blades are so constructed that the line drawn is always exposed to the view of the operator.

The lift of the upper blade is adjusted to any desired height by a screw in the lever. When so adjusted as to permit the sheet to be passed through under the blades, the rear gauge may be so set as to cut slits, or square, octagonal, hexagonal, or any other shaped hole, with straight sides, in the center of a sheet of metal 20 inches square, or less, as illustrated in Fig. 115.

They will cut round or elliptical bottoms for vessels of any size having a radius of 2 inches or more.

The front table can be removed at pleasure, and chould be removed when cutting to line. By placing This table in position, as seen in the cut, and fastening

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gauge in proper place, roofing plates can be cornered ready for turning the lock. This table is so graduated. that at a glance the gauges can be set at any desired angle between 45 and 90 degrees.

The blades can be easily removed and ground. The shears are so constructed that they can readily be adjusted, and with proper care should last a lifetime. When used as ordinary bench shears the table should be removed.

Slitting Shears, with Gauge Table. The slitting shears shown in Fig. 116 are designed for cutting thin metal into strips from 2 to 9 inches in width. They are arranged with gauges and a supporting table, so that accuracy may be secured. They will cut material not thicker than No. 20 gauge.

Slitting Shears. The slitting shears shown in the illustration at Fig. 117 is an entirely new machine. The lower cutter is inserted in the bedplate and will

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cut strips from 14 to 15 inches in width, metal not thicker than No. 22 gauge. The bedplate forms a table 9 inches wide and 22 inches long. It is in every way a thoroughly reliable cutter. It may be operated by hand or power.

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