Charles W Frame

US Patent:

46533001, Mar 31, 1987

Filed:

Jan 28, 1985

Appl. No.:

6/695697

Inventors:

Charles J. Crout - Chambersburg PA
Charles W. Frame - Chambersburg PA
Ronald N. Harris - Ft. Loudon PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

B30B 1516

US Classification:

72 8

Abstract:

A die forging hammer senses the pressure of striking air and the pressure of lifting air from within the cylinder as well as ram start position. Various empirical information is stored and available to a computer which uses the inputs to compute velocity, ram position, rebound velocity and other pieces of information. In order to use the lifting air data, sequential pressure measurements are made by a microprocessor and stored for analysis and for use in deriving from stored empirical information about machine characteristics ram velocity and related information. Three types of systems are interwoven and may be used separately or simultaneously to control the blow control system. The blow control system itself compares input desired results with computed actual results and enables changes to valve timing to bring the actual into conformity with the desired. The adaptive system derives such information as actual velocity and energy, compares them with the corresponding desired results and makes immediate correction to valve timing in the course of the same blow. The self-regulating system stores information from a sequence of blows and makes a correction when it senses a trend away from the desired input.

US Patent:

46931015, Sep 15, 1987

Filed:

Jan 5, 1987

Appl. No.:

7/000576

Inventors:

Charles J. Crout - Chambersburg PA
Charles W. Frame - Chambersburg PA
Ronald N. Harris - Ft. Loudon PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

B21J 738
B21J 740

US Classification:

72 20

Abstract:

A die forging hammer senses the pressure of striking air and the pressure of lifting air from within the cylinder as well as ram start position. Various empirical information is stored and available to a computer which uses the inputs to compute velocity ram position, rebound velocity and other pieces of information. In order to use the lifting air data, sequential pressure measurements are made by a microprocessor and stored for analysis and for use in deriving from stored empirical information about machine characteristics ram velocity and related information. Three types of systems are interwoven and may be used separately or simultaneously to control the blow control system. Different programs are employed, preferably using algorithms applicable to the equipment in processes to derive desired output or intermediate information.

US Patent:

41311647, Dec 26, 1978

Filed:

Nov 23, 1977

Appl. No.:

5/854022

Inventors:

Wilmer W. Hague - Fayetteville PA
Charles W. Frame - Chambersburg PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

F15B 2102

US Classification:

173 1

Abstract:

Switch means on the frame of a forging device senses when the ram and piston enter a first zone of a pneumatic cushion during retraction to initiate timing. If a predetermined time has expired before the ram leaves the first zone, the fluid inlet valve is opened. If not, switch means senses when the ram and piston enter a second zone to initiate a second timing. If a second predetermined time expires before the ram leaves the second zone, the fluid inlet valve is opened. If not, switch means senses when the ram and piston enter a third zone, and after a predetermined time the fluid inlet valve is opened. Thus, by sensing ram position and measuring time ram remains within each zone, the effective upward velocity (distance/time) is measured and adaptive controls applied.

US Patent:

42454921, Jan 20, 1981

Filed:

Jan 22, 1979

Appl. No.:

6/005350

Inventors:

Eugene C. Clarke - Chambersburg PA
Charles W. Frame - Chambersburg PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

B21J 734

US Classification:

72407

Abstract:

A pair of hydraulic stabilizing cylinders are supported on a common frame parallel to the main pneumatic drive cylinders driving counter-blow hammer impellers. The stabilizing piston within each stabilizing cylinder is connected to its adjacent impeller. Those ends of the respective stabilizing cylinders adjacent the impeller are connected to the opposite ends of the other stabilizing cylinders by fluid filled hydraulic lines. Because the cylinders and pistons are the same size, as the impellers move, fluid is transferred from one end of each cylinder to the other end of the other. However, should the impellers not move in synchronism toward their point of impact, that impeller tending to move ahead of the other will experience resistance from the fluid in the stabilizing system which tends to keep the impellers in step. In addition, means is provided to detect differences in position of the synchronizing pistons. Any difference in the relative positions of the synchronizing pistons is used to operate the appropriate one of valve operating switches regulating feed of air from an air supply to the air cushion at the retraction end of the main pneumatic drive cylinder.

US Patent:

42143632, Jul 29, 1980

Filed:

Dec 19, 1978

Appl. No.:

5/971058

Inventors:

Jack A. Rickrode - Chambersburg PA
Charles W. Frame - Chambersburg PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

B23P 1902

US Classification:

29802

Abstract:

Opposing hydraulic rams are supported in cylinders on cylinder beams connected together and then connected with a intermediate resistance beam by low yield connection bars, thereby reducing shearing stresses at the foundation. Hydraulic controls operate rams in the first mode to clamp an axle between opposing rams or to release a clamped axle. In one driving mode one ram drives the clamped axle, which, in turn, drives the other ram axially in one direction. In the other driving mode the other ram drives the one in the opposite direction. In demounting members, the resistance beam or extensions bear against a member pressed onto the axle to restrain such member as the axle continues to move through until the member is loosened. In mounting members, opposition to axial movement of such a member loosely on the axle or ram extensions is provided by a yoke extension of the cylindrical beam to cause said members to be pressed onto the axle as the axle continues to move. The yoke extensions may be stationary and fixed in place or movable into position by various means.

US Patent:

47182636, Jan 12, 1988

Filed:

Jan 5, 1987

Appl. No.:

7/000512

Inventors:

Charles J. Crout - Chambersburg PA
Ronald N. Harris - Ft. Loudon PA
Charles W. Frame - Chambersburg PA

Assignee:

Chambersburg Engineering Co. - Chambersburg PA

International Classification:

B21T 920

US Classification:

72 8

Abstract:

A forging hammer employs compressible fluid to drive the ram into impact and a trapped volume of compressible fluid to cause the ram to be retracted from impact position when fluid driving the ram into impact is released. The velocity of impact is adjusted by the timing of the opening of a valve allowing variable amounts of compressed fluid into a cylinder from a compressible fluid supply. Various means are provided to sense one or more of following: pressure of the compressible inlet fluid, residual velocity of the ram at the position at which the at least one inlet port is uncovered by the piston, position of the piston at the time of fluid admission and pressure of the lifting fluid. The sensed parameters are correlated in connection with predetermined criteria. This correlation is used to determine a range of possible kinetic energy at impact and that range is compared with a preselected kinetic input demand.

US Patent:

42546630, Mar 10, 1981

Filed:

Nov 23, 1979

Appl. No.:

6/096804

Inventors:

Jack A. Rickrode - Chambersburg PA
Charles W. Frame - Chambersburg PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

G01L 716

US Classification:

73714

Abstract:

Opposing hydraulic rams are supported in cylinders on cylinder beams connected together and then connected with a intermediate resistance beam by low yield connection bars, thereby reducing shearing stresses at the foundation. Hydraulic controls operate rams in the first mode to clamp an axle between opposing rams or to release a clamped axle. In one driving mode one ram drives the clamped axle, which, in turn, drives the other ram axially in one direction. In the other driving mode the other ram drives the one in the opposite direction. In demounting members, the resistance beam or extensions bear against a member pressed onto the axle to restrain such member as the axle continues to move through until the member is loosened. In mounting members, opposition to axial movement of such a member loosely on the axle or ram extensions is provided by a yoke extension of the cylindrical beam to cause said members to be pressed onto the axle as the axle continues to move. The yoke extensions may be stationary and fixed in place or movable into position by various means.

US Patent:

47124059, Dec 15, 1987

Filed:

Jan 5, 1987

Appl. No.:

7/000573

Inventors:

Charles J. Crout - Chambersburg PA
Charles W. Frame - Chambersburg PA
Ronald N. Harris - Ft. Loudon PA

Assignee:

Chambersburg Engineering Company - Chambersburg PA

International Classification:

B21T 916

US Classification:

72 19

Abstract:

A forging hammer employs compressible fluid to drive the ram into impact and a trapped volume of compressible fluid to cause the ram to be retracted from impact position when fluid driving the ram into impact is released. The velocity of impact is adjusted by the timing of the opening of a valve allowing variable amounts of compressed fluid into a cylinder from a compressible fluid supply. As the ram is driven into impact, the compressible fluid which causes the ram to be retracted is compressed and increases in pressure. The peak of pressure in this trapped volume of compressible fluid is sensed and compared with a peak value of reference pressure which represents a desired impact energy. If there is an error between the measured peak and the desired peak effect, an incrementing or decrementing signal is provided to correct the valve to adjust the effect of the next blow.