GB Patent: GB-178,569
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| Improvements in drilling machines
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Patentee:
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| William Alfred Pearn (exact or similar names) - Rusholme, Manchester, England |
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Patent Dates:
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| Applied: |
Jan. 20, 1921 |
| Granted: |
Apr. 20, 1922 |
Espacenet patent
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Jeff Joslin
Vintage Machinery entry for Frank Pearn & Co., Ltd.
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Description: |
| "A vertical drilling-machine comprises a column c provided with horizontal guides b at the upper end, on which the drilling head is adapted to slide. A rotatable table d is carried on a knee bracket e which is provided with T-slots and is mounted to permit of vertical and transverse adjustment on the column c. A change and reverse gear is mounted in the base of the vertical column and drives by belt and change gear 5 the horizontal shaft 4 which is geared to the drill-spindle a. Hand and power feed are provided, the latter being belt driven from the shaft 4 through change gearing 9. A spring counterbalance is provided for the spindle." |
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