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Title: |
1895 Article-Gleason Works, Bevel Gear Planer |
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Source: |
Machinery Magazine Sep 1895 pg 20 & Oct 1895 pg 64 |
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Insert Date: |
3/22/2011 10:11:45 AM |
A NEW BEVEL GEAR PLANER.
This is the first published illustration of an automatic bevel gear planer, on which foreign and American patents were issued to the Gleason Tool Co., Rochester, N. Y., in April, 1894.
The gear to be planed is mounted on a spindle carried in the head of the machine, and the machine is moved back or forward like the tail-stock of a lathe till the bevel gear it carries is in such position that the apex of its cone lines is at the center of machine.
The slide on which the tool-holder travels is rotated at the center of the machine so that it can be moved in line with the pitch line angle of gear. Beside this horizontal adjustment of the slide, it is hinged at the center of the machine so as to permit a vertical adjustment as it is fed over the former, so that the tool always travels on the correct angle of the gear from the top of tooth to the root, and the tooth therefore has the perfect reducing cut, and the small end is in proportion to the large end.
The formers which give curve to the teeth are made very accurately. The master formers have been laid out with great care on a pitch circle several times larger than any gear to be planed, so that any possible inaccuracy in the former is reduced to a minimum in the gear. The formers which are furnished with the planers arc made on a profile machine, so that they are exact duplicates of these master formers.
For indexing, the first stop is adjusted so as to throw the feed out automatically when the tool has fed to the proper depth. The gear is indexed automatically and the second stop throws the feed in again.
The machine is very simple of adjustment, and it requires no more skill to operate it than for an automatic rotary gear cutter. |
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1895 Gleason Works, Bevel Gear Planer
1895 Gleason Works, Bevel Gear Planer
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