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Title: |
1895 Article-Egan Co., Car Mortiser & Tenoner |
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Source: |
Modern Mechanism 1895 pgs 533-534 |
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Insert Date: |
7/17/2011 7:57:06 PM |
The Egan Automatic Square-chisel Car Mortiser mid Tenoner, Fig. 2, will not only
cut heavy mortises, but make end tenons, gain, or mortise clear through a timber 9 in. thick, and countersink for bolt heads. The frame consists of a casting cored out at the center, and bearing at one end a knee in which the square chisel bar plays, and on its top, at the opposite end from the knee just mentioned, a table having an upright bracket, against which the side of the timber to be mortised bears. A clamp piece on this bracket holds the timber down. There is a dead roll in the table, for facilitating feeding the timber endwise across the machine. By a hand wheel the mortising bar is raised or lowered to suit any point on the width of the timber; by a screw and hand wheel, the mortising bar is brought up to the timber and the square chisel forced through; a hand lever performing for the auger the same function. The cross movement of the bed is controlled by a friction clutch having steps to gauge the length of the mortise. The chisel mandrel is driven by a friction gearing with a quick return; and there are suitable stops for gauging the travel of the slide; also a regulating screw for changing the position of the chisel to suit the work. An extra boring attachment is fitted to the machine for boring joint bolt-holes, side and general work. |
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1895 Egan Co., Car Mortiser & Tenoner
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