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Title: |
1921 Article-Haskins, R. G., Co., Die Filing Machine |
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Source: |
Machinery, V28, Dec 1921, pg. 328 |
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Insert Date: |
5/21/2016 7:41:44 PM |
The accompanying illustration shows a motor-driven filing equipment built by the R. G. Haskins Co., 27 S. Desplaines St., Chicago, 111., which is intended to eliminate the delay and expense of hand filing. The equipment is especially suitable for such work as machining templets, dies, tools, etc. The filing spindle is square in cross-section, and has provision for compensating for wear. Because of the construction it is possible to file sharp corners without play of the spindle. A reciprocating motion is imparted to the spindle by means of a hardened and ground tool-steel block and slide. This mechanism is entirely enclosed and adequately supplied with oil. The table is 9 inches square and may be locked in position for filing at an angle. A series of grooves in the top of the table prevents chips from accumulating on the surface and interfering with the rigid holding of work.
The motor is of ¼-horsepower capacity, equipped with ball bearings, and is mounted on a dovetail slide. The drive from the motor to the spindle is through a friction wheel and plate. By pushing the motor either forward or backward on its base, the speed of the spindle may be varied from 300 to 700 revolutions per minute. A cam enables the machine to be stopped without stopping the motor. Standard machine files are furnished in sets of twelve, in various shapes and with 14-inch diameter shanks. The machine is light in weight, and so can be easily carried from bench to bench. All reciprocating parts are made of tool steel and ground. |
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1921 Haskins, R. G., Co., Die Filing Machine
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