GB Patent: GB-214,335
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| Improvements Relating to the Production of Gear Wheels
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Patentee:
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| James H. Melloy (exact or similar names) - Manchester, Lancaster County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 20, 1923 |
| Granted: |
Apr. 22, 1924 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for William Muir & Co.
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Description: |
| Abstract:
The spiral angle of the teeth of a helicoidal gear wheel is ascertained while. the wheel is being cut by mounting upon the tool carrying slide of the cutting machine a bracket b carrying a narrow toothed wheel c that can be brought into engagement with the teeth being cut. The wheel c, which can rotate freely, has a boss on which an arm d is secured. A clock type indicator f is carried by a block g adjustable upon the bracket b and another clock type indicator i is arranged upon the . tool slide to co-operate with a dead length gauge h. In operation the wheel c is brought into contact with the teeth of the gear k being tested, the gauge h being in place and both indicators being at zero. The gauge h is removed and the tool slide travelled along the machine until the indicator i is engaged by the stop against which the gauge h was held, the wheel c rotating through its engagement with the teeth of the gear k. A bar m with adjustable end pieces is then used to measure the diaphragm between the stops on the arms and the indicator f. The bar m and gauge h are then used to test the spiral angle of the teeth of the gear that is to mate with the gear k and if error is found the work is adjusted in the machine to correct such error. |
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