GB Patent: GB-649,637
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Improvements relating to horizontal boring machines
Scale-reading apparatus
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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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| Applied: |
Jun. 30, 1949 |
| Granted: |
Jan. 31, 1951 |
Espacenet patent
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Jeff Joslin
"Vintage Machinery" entry for H. W. Kearns & Co., Ltd.
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Description: |
| "In a horizontal boring-machine, an image of a vertically-adjustable scale g is projected by means of a lamp p and mirrors q, r and t on to a translucent screen l bearing a vernier scale. The bar g is initially adjusted so that its zero and that of the vernier are coincident. Movements of the scale are then viewed through a window n by means of a mirror o." |
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