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Title: |
1946 Article-Cincinnati Bickford Tool Co., Super Service Drill Press |
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Source: |
Machinery Magazine, V52, Apr 1946, pg. 211 |
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Insert Date: |
7/16/2017 9:57:50 PM |
Cincinnati Bickford "Super Service" Upright Drilling Machine
A direct-driven upright drilling machine designed for mass production drilling, as well as for the handling of small-lot drilling jobs, is built by the Cincinnati Bickford Tool Co., 3225 Forrer St., Cincinnati 9, Ohio. This machine, built in 21-, 24-, and 28-inch sizes, has driving motors ranging from 3 to 10 H.P. Motors having a speed of 1200 R.P.M. are usually supplied, but motors operating at 900 or 1800 R.P.M. can be had to suit the requirements for lower or higher spindle speeds. The motors are equipped with magnetic reversing starters when tapping or spindle-reversing operations are to be performed. Push-buttons for controlling the driving motor are lever-operated and built in as an integral part of the machine.
It is possible to obtain sixteen speeds and eight feeds by rearranging the numbered pick-off gears on lettered shafts according to data on a direct-reading etched plate mounted at the back of the gear-case. An adjustable reversing arrangement for automatic tapping is available for use on high-production work. Tap leads, when supplied, are of the gear-driven type, designed to provide an accurate lead for guiding the tap. A direct-reading graduated scale facilitates drilling to exact depth within 0.005 inch. When precision to within 0.001 inch is required for facing operations, a special "dwell" attachment can be furnished to meet the closer tolerances specified.
The spindle and sleeve are counterbalanced by an easily accessible weight inside the column. When drilling heads are used, they can be easily counterbalanced by employing removable section counterweights. This machine can be equipped with a cutting lubricant system and with chip hoppers. It is available in two-, three-, or four-spindle gang type construction to meet special requirements. |
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1946 Cincinnati Bickford Tool Co., Super Service Drill Press
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