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US Patent: 1,972,373
Clutch Mechanism for Lathe Aprons
Patentee:
Constant Bouillon - Torrington, CT

USPTO Classifications:
82/135

Tool Categories:
metalworking machines : metal lathes : engine lathes

Assignees:
Hendey Machine Co. - Torrington, CT

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Mar. 21, 1932
Granted: Sep. 04, 1934

Patent Pictures:
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Hendey Machine Co. History
"Vintage Machinery" entry for Hendey Machine Co.
Description:
Ernest R. Llewellyn - patent attorney

Abstract:

This invention relates to machine tools and more particularly to a lathe apron actuating mechanism for traversing the apron and tool carriage. In the various types of lathes the bed has slidably mounted thereon a carriage upon which the tool support or slide is mounted. Depending from the carriage is the apron in which is mounted the gear train which may be optionally engaged with a rotating lead screw for automatically traversing the apron and carriage through the gear train and which is commonly referred to as the: power feed. The gear train may be also engaged with a stationary rack and manually actuated through a hand wheel. The transverse feed of the tool support or slide is also effected through the apron gear train. This transverse feed may be optionally engaged with the rotating lead screw to effect a power feed or, disengaged from the power-feed and be manually operated. Heretofore various devices have been utilized in the selective engaging and operating of these feeds which include various and well-known types of clutches of the friction or positive toothed character as shown and completely described in Patents Nos. 1,832,011, 1,692,705, or 1,218,784. In these various devices it is necessary to employ a multiplicity of parts which due to their, arrangement and operation require the interpositioning of thrust bearings in addition to the bearings required by the rotating members. It's also essential, particularly in the power traversing feeds of the carriage, that one of the feeds remain positively disengaged when an opposed power or hand feed is being used. This invention relates to machine; tools and more particularly to a lathe apron actuating mechanism for traversing the apron and tool carriage. In the various types of lathes the bed has slidably mounted thereon a carriage upon which the tool support or slide is mounted. Depending from the carriage is the apron in which is mounted the gear train which may be optionally engaged with a rotating lead screw for automatically traversing the apron and carriage through the gear train and which is commonly referred to as the power feed. The gear train may be also-engaged; with, a stationary rack and manually actuated through a hand wheel. The transverse feed of the tool support or slide is also effected through the apron gear train. This transverse feed may be optionally engaged with the rotating lead screw to effect a power feed or, disengaged from the power-feed and be manually operated. Therefore, the object of my present invention's to provide a lathe apron with a gear train in which the traversing feeds of the apron may be optionally and positively engaged and which, when one feed is engaged, the other means of engagement are positively inoperative. Another object in my invention is to provide a clutch operating mechanism that may be assembled and rotated as a unit when engaged or disengaged and, whereby I am permitted to eliminate the necessity of interposing anti-friction thrust bearings. A further object of my invention is to provide a combination apron mechanism whereby, when one means of feed is being utilized, connections to the other feeds are disengaged in a manner that permits connecting gears of the train to remain stationary thus producing less friction drag which results in greater freedom of movement of the carriage and apron.

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