GB Patent: GB-738,873
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| Improvements relating to face plates of horizontal boring and facing machines
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Patentee:
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| Henry Ward Lionel Kearns (exact or similar names) - Broadheath, Manchester, England |
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Patent Dates:
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| Granted: |
Oct. 19, 1955 |
Espacenet patent
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Jeff Joslin
"Vintage Machinery" entry for H. W. Kearns & Co., Ltd.
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Description: |
| "A face plate a for a horizontal boring and facing machine comprises a facing slide c carrying a pair of racks g1, g2, each engaged by a worm wheel f1, f2 respectively, meshing also with a common worm e formed on a cylindrical surface coaxially around the spindle b, the racks having teeth of equal but oppositely directed inclination and arranged parallel to, but with the worm wheels, asymmetrically on opposite sides of the facing slide. The projection of the worm wheel teeth onto the respective rack is equal in each case, to obtain correct meshing of the worm wheels and racks and a balanced thrust on the slide." |
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