Robert E Loy

US Patent:

45152349, May 7, 1985

Filed:

Jul 15, 1983

Appl. No.:

6/514115

Inventors:

Robert E. Loy - Bucyrus OH
Dale R. Phillips - Crestline OH
Paul E. Willis - Orrstown PA

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

B62D 2704

US Classification:

180 8912

Abstract:

A stabilizing and isolation system for mounting an operator cab on a vehicle frame includes at least one resilient member disposed between the underside of the cab and the frame for resiliently supporting the cab on the frame. Motion limiting members are connected to the frame and the cab for restraining vertical displacement of the cab relative to the frame during a catastrophic event. A stabilizing linkage assembly is connected to the frame and the cab for restraining rolling and pitching motion of the cab relative to the frame, the assembly including resilient means to permit relative vertical motion between the cab and the frame.

US Patent:

52302350, Jul 27, 1993

Filed:

Apr 14, 1992

Appl. No.:

7/868330

Inventors:

Gregory A. Smith - Tiffin OH
Dale E. Foltz - Tiffin OH
Robert E. Wisebaker - Tiffin OH
Robert E. Loy - Bucyrus OH

Assignee:

The National Machinery Company - Tiffin OH

International Classification:

B21H 306

US Classification:

72 90

Abstract:

A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slippage. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.

US Patent:

D2861585, Oct 14, 1986

Filed:

Aug 3, 1983

Appl. No.:

6/519808

Inventors:

Donald C. Baldwin - Galion OH
Robert E. Loy - Bucyrus OH
Paul E. Willis - Orrstown PA

Assignee:

Dresser Industries, Inc. - Dallas TX

US Classification:

D15 23

US Patent:

54170966, May 23, 1995

Filed:

Mar 18, 1994

Appl. No.:

8/210513

Inventors:

Gregory A. Smith - Tiffin OH
Dale E. Foltz - Tiffin OH
Robert E. Wisebaker - Tiffin OH
Robert E. Loy - Bucyrus OH

International Classification:

B21H 306
B23P 1500

US Classification:

72 90

Abstract:

A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slippage. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.

US Patent:

47794445, Oct 25, 1988

Filed:

Mar 12, 1987

Appl. No.:

7/024812

Inventors:

William H. Hite - Tiffin OH
Robert E. Loy - Bucyrus OH

Assignee:

The National Machinery Company - Tiffin OH

International Classification:

B21D 2200

US Classification:

72354

Abstract:

A closed die forging machine is disclosed in which the dies are clamped in their closed position by a hydraulically operated piston and cylinder means. A spacer is positioned between the clamping means and the movable die during the forging operation. Subsequent to the forging operation, the clamping means are released and the spacer is removed so that the movable die can be mechanically moved to its fully open position. By combining a removable spacer and hydraulic clamping means, it is possible to produce high die clamping forces without requiring substantial fluid flow to and from the clamping means. Therefore, pumping requirements are reduced and the tendency of the hydraulic fluid to become excessively hot is substantially reduced. Immediately after the completion of the forming operation within the closed die cavity, the hydraulic forces are released and a spring-powered system controlled by a cam-operated operator causes partial ejection of the finished workpiece from the stationary die. This minimizes the tendency of the fixed die to be excessively heated by the workpiece and improves die life.

US Patent:

53458001, Sep 13, 1994

Filed:

Mar 22, 1993

Appl. No.:

8/034131

Inventors:

Gregory A. Smith - Tiffin OH
Dale E. Foltz - Tiffin OH
Robert E. Wisebaker - Tiffin OH
Robert E. Loy - Bucyrus OH

Assignee:

The National Machinery Company - Tiffin OH

International Classification:

B21H 306

US Classification:

72 90

Abstract:

A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slippage. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.

US Patent:

55557570, Sep 17, 1996

Filed:

May 25, 1995

Appl. No.:

8/451132

Inventors:

Gregory A. Smith - Tiffin OH
Dale E. Foltz - Tiffin OH
Robert E. Wisebaker - Tiffin OH
Robert E. Loy - Bucyrus OH

Assignee:

The National Machinery Company - Tiffin OH

International Classification:

B21H 306

US Classification:

72 88

Abstract:

A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slip page. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.

US Patent:

51312506, Jul 21, 1992

Filed:

Feb 8, 1991

Appl. No.:

7/652778

Inventors:

Gregory A. Smith - Tiffin OH
Dale E. Foltz - Tiffin OH
Robert E. Wisebaker - Tiffin OH
Robert E. Loy - Bucyrus OH

Assignee:

The National Machinery Company - Tiffin OH

International Classification:

B21H 306

US Classification:

72 90

Abstract:

A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slippage. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.