GB Patent: GB-191,106,595
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| mprovements in Gear Hobbing Machines
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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: |
Mar. 16, 1911 |
| Granted: |
Jun. 21, 1911 |
Espacenet patent
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Joel Havens
"Vintage Machinery" entry for William Muir & Co.
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Description: |
| Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue and the patent #. This patent is #6,595 of the year 1911.
Abstract:
A gear-hobbing machine has a number of detachable rotary work-tables, provided with worm-wheels, to suit varying sizes of work. For the smallest sizes of work, the blanks are carried on a shaft supported on an outer stay c, Fig. 5, the work spindle e being driven by worm-wheel g and worm h. For larger work the outer stay is removed and the worm h put out of action, and one of a number of work-tables j<1>, Fig. 4, are placed on the spindle. These work-tables are driven by worms n mounted on a pivoted arm o driven bv bevelgearing from the shaft i; and the shaft h' carrying the worm h is mounted in eccentric bushes k, k<2>, k<3>, so that by turning the handle k<1> the shaft comes out of action with the wormwheel g and the bevel-wheel on the shaft i. When used for cutting double helical gears, two hobs are placed in the same standard, and one is fed up and the other down, thus balancing the thrust.
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