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Title: |
1921 Article-American Broach & Machine Co., Bench Broach Press |
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Source: |
Machinery, V28, Nov 1921, pg. 247 |
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Insert Date: |
6/12/2016 12:20:55 PM |
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A power broach press of a bench type, which is being place on the market by the American Broach & Machine Co., Ann Arbor, Mich., is here illustrated. This machine is intended not only for push broaching operations, but also for pressing into place or removing mandrels, bushings, etc. The machine is driven through a pulley 10 inches in diameter, having a face width suitable for a 2½-inch belt. Power from the driving shaft is transmitted through worm-gearing to a steel pinion that engages rack teeth cut directly on the ram. The worm-gearing has a 30 to 1 reduction. The worm is arranged to disengage automatically at the end of a predetermined stroke, through the medium of a collar at the upper end of the ram. Automatic return of the ram is effected through a weight and cord, the rack being wound in a groove around the hand-wheel. The machine has a stroke of 14 inches and the bore in the table is 2½ inches in diameter. |
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1921 American Broach & Machine Co., Bench Broach Press
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