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GB Patent: GB-190,817,999
Improvements in mechanism for operating friction clutches
Patentees:
Thomas Bowman Burton - Broadheath, Manchester, England
James Parnell Trust Slade - Wallacre, England

USPTO Classifications:

Tool Categories:
metalworking machines : drilling and boring : horizontal boring mills

Assignees:
H. W. Kearns & Co., Ltd. - Broadheath, Manchester, England

Manufacturer:
H. W. Kearns & Co., Ltd. - Broadheath, Manchester, England

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 27, 1908
Granted: Aug. 27, 1909

Patent Pictures:
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"Vintage Machinery" entry for H. W. Kearns & Co., Ltd.
Description:
"This invention relates to an improvement applicable to boring and like machines, which are thrown in and out of gear, or the gear changed by means of a stud eccentrically fitted on the face of a disc that is operated by a hand lever, so that when the disc or lever is rotated, said stud is caused either to operate a friction clutch by pressing on the flange at either one or both ends of the clutch. The object of our present invention is to reduce friction when actuating the stud by the aforesaid disc, and to effect the change rapidly: For this purpose we place on the aforesaid stud a roller to run loosely thereon, that will in like manner act eccentrically, and that will effect the change in less time and with reduced friction."

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