GB Patent: GB-549,792
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| Improvements relating to boring tool holders for boring 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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| Applied: |
May 08, 1942 |
| Granted: |
Dec. 07, 1942 |
Espacenet patent
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Jeff Joslin
"Vintage Machinery" entry for H. W. Kearns & Co., Ltd.
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Description: |
| "Cutters are set and adjusted on boring bars without removing the bars from the boring-machine. The cutter is held by a set screw e in a saddle b received on a circular or other seating a1 formed between shoulders on the bar a2. The saddle is clamped by a single screw d engaging a key-hole slot so that removal of the screw is not necessary for the release of the saddle. A similar screw g then mounts the saddle on a test bar f of diameter corresponding to the seating a1 and a fine screw h adjusts the cutter with the help of a gauge i carried by a straddle bracket resting on the bar." |
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