Ward A Ames

US Patent:

39954692, Dec 7, 1976

Filed:

Oct 16, 1975

Appl. No.:

5/623101

Inventors:

Ward A. Ames - Danville IL

Assignee:

Tridan Tool & Machine, Inc. - Danville IL

International Classification:

B21D 2200
B21D 4506

US Classification:

72328

Abstract:

A progressive fin die having means for preventing metal particle buildup around the punch with the means stripping the workpiece from the punch. A plurality of draw punches are arranged with decreasing diameters in a row. A ram is movable to and from the draw punches and includes a plurality of draw bushings. Movement of the ram toward the draw punches results in the punches forming bonnets in the workpiece positioned between the punches and bushings. Spring biased stripper rods extend through the bushings and are operable to force the workpiece from the bushings. A compound pierce and straightening station includes a hollow pierce bushing mounted to the frame for receiving a pierce punch movable to and from the frame by a ram. A straightening bushing encircles the pierce punch and is externally engageable with the bonnet formed by the draw punches. A stripper bushing is slidably mounted to the pierce punch and is disposed between the straightening bushing and the pierce punch.

US Patent:

41189680, Oct 10, 1978

Filed:

Jun 18, 1976

Appl. No.:

5/697351

Inventors:

Ward A. Ames - Danville IL

Assignee:

Tridan Tool & Machine, Inc. - Danville IL

International Classification:

B21D 4500

US Classification:

72328

Abstract:

A progressive fin die having means for preventing metal particle buildup around the punch with the means stripping the workpiece from the punch. A plurality of draw punches are arranged with decreasing diameters in a row. A ram is movable to and from the draw punches and includes a plurality of draw bushings. Movement of the ram toward the draw punches results in the punches forming bonnets in the workpiece positioned between the punches and bushings. Spring biased stripper rods extend through the bushings and are operable to force the workpiece from the bushings. A compound pierce and straightening station includes a hollow pierce bushing mounted to the frame for receiving a pierce punch movable to and from the frame by a ram. A straightening bushing encircles the pierce punch and is externally engageable with the bonnet formed by the draw punches. A stripper bushing is slidably mounted to the pierce punch and is disposed between the straightening bushing and the pierce punch.

US Patent:

41320972, Jan 2, 1979

Filed:

Nov 3, 1977

Appl. No.:

5/848328

Inventors:

Ward A. Ames - Danville IL

Assignee:

Tridan Tool & Machine, Inc. - Danville IL

International Classification:

B21D 5138

US Classification:

72 71

Abstract:

A method for forming collared holes in a workpiece. The tool has a drill formed at one end thereof for forming a hole in the workpiece. Immediately adjacent and contiguous to the drill is a tapered configured portion which is extendable into the hole formed by the drill. Rotation of the tool causes a collar to form around the hole as the tapered portion of the tool is rotated and forced into the hole. The tool has a constant diametered rod configured portion to straighten and polish the inside surface of the collar formed around the hole in the workpiece. The method of forming the collared hole in a workpiece includes the steps of forming the hole in the workpiece, inserting the tapered tool into the hole so as to contact the tapered tool against the circumference of the hole. The tool is then rotated and the tapered portion is forced further through the hole so as to form the collar integral with the workpiece and surrounding the hole while protruding from opposite sides of the workpiece.