Cooper Industries, Inc.

Other

Joseph F Carter

John F Stewart

James A Maass

Kenneth H LaCount

Edwin J Deremo

Russell D Richardson

James A Maas

An improvement to an air logic circuit for an airfeed peck drill includes the insertion of an advance valve into the timer circuit. This advance valve generates a signal to actuate the timer circuit only after the drill quill has fed forward through rapid advance.

Air logic circuit for airfeed peck drill

Airfeed peck drill

A nose piece for use with an airfeed drill includes a cylindrical portion which has on one end a truncated cone for mounting a drill support bearing and on the other end a flange. Formed within the flange are a plurality of slots. These slots correspond to an array of rotatable fasteners and locking pieces mounted on the front of the housing. Attachment of the nose piece to the housing is accomplished by placing the slots over the fasteners and locking pieces and tightening the fasteners.

Quick change nose piece for an air-feed peck drill

Nose piece for airfeed peck drill

Nose piece for a peck drill

A test fixture for comparing the performance characteristics of air feed drills includes a frame and a simulated linear thrust load. Included also is a peck counter, a linear transducer for measuring stroke length, and an rpm counter. These measurements are visually displayed and may be optionally used as inputs for the calculation of various operational ratios which may also be displayed.

Drill test fixture

An improvement to an air logic circuit for an airfeed peck drill includes the insertion of a retract valve between the command valve and the air motor. This retract valve generates a required signal to only allow the drill quill to feed forward after it has been fully retracted

A multiblade rotary lawnmower is disclosed that includes a pair of rotary blade members that are located in tandem relation but are disposed such that the swath of cut of the rear blade member overlaps with the swath of cut of the forward blade member, the rear blade member also fine cutting the area that is first cut by the first blade member and further mulching the grass and vegetation as cut thereby.

Multiblade rotary lawnmower

A holder for paintbrushes that is mounted on the rim of an open paint can and supports the brushes in a position of nonuse. The paintbrush holder includes a tray that occupies less than the full dimension of the open top paint can and has a configuration that provides for the dripping of paint accumulated thereon into the interior of the paint can. The brush holder is also provided with clip means that enables the brushes to be securely located on the tray in side-by-side relation in the position of nonuse.

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Lexington, SC, United States of America

Joseph F Carter