The Minster Machine Company

The Minster Machine

Richard J Oen

John B Bornhorst

Edward A Daniel

Charles H Dickman

Kevin J Evers

Ryan M Stoltz

Wenliang Tang

Joseph H Hamberg

An adjustment stroke connection for a mechanical press includes an eccentric bushing disposed within a press connection member and an eccentric crankshaft member disposed within the eccentric bushing. A rotatable crankshaft is connected to the eccentric member. A mechanism is provided for connecting the eccentric bushing with the press connection member in a manner that prevents rotation therebetween and concurrently permits rotation of the eccentric member relative to the eccentric bushing. When the mechanism is activated, driving rotation of the crankshaft produces a press stroke adjustment. A torque actuator delivers equal driving torque to plural eccentric crankshaft members to enable minimization of relative bushing angle slip. Suitable control of the bushing angle and slide position crank angle during bushing expansion and contraction also minimizes relative bushing angle slip.

Adjustable stroke mechanism

An adjustable clamping mechanism includes a slider block annularly disposed about a rod device within a mechanical press. The mechanism utilizes a press or interference fit connection between the components. During operation, high-pressure oil is injected into the location between the slider block and rod, thereby relieving the press fit and making it possible to have relative movement therebetween. An actuator causes selective linear displacement of the slider block along the longitudinal axis of the stationary rod during the release condition. Once the slider block is repositioned, the high-pressure oil is removed, which reactivates the press fit connection and causes the slider block to once again lock up against the rod and prevent movement therebetween.

Adjustable clamping device in a mechanical press

A positive lock for infinite adjustable stroke alignment mechanism for a mechanical press with an eccentric bushing disposed within a press connection member with a second eccentric member disposed within the eccentric bushing. A rotatable crankshaft is connected to the second eccentric member. A positive lock alignment mechanism is included for aligning the press connection member with the eccentric bushing to prevent rotation therebetween and permitting rotation of the second eccentric member with the eccentric bushing for infinite stroke adjustment whereby rotation of the crankshaft, when the mechanism is activated causes a press stroke adjustment.

Positive lock for infinite adjustable stroke mechanism

A mechanical press having a variable drive arrangement. The press includes a link drive which drives a crankshaft. The drive altering mechanism includes an adjustment device which changes the position of the link drive, thereby altering the drive mechanism of the mechanical press and the corresponding velocity curve of the press slide.

Method of altering the drive mechanism of a mechanical press

A mechanical press having a variable drive arrangement. The press includes a link drive which drives a crankshaft. The drive altering mechanism includes adjustment means which changes the position of the link drive, thereby altering the drive mechanism of the mechanical press and the corresponding velocity curve of the press slide.

Link adjustment member

A mechanical press having a variable drive arrangement. The press includes a main gear which drives a crankshaft. The drive altering mechanism includes a two piece crown with the main gear connected to the upper crown and the crankshaft connected to the lower crown. Movement of one piece of the crown relative to the other varies the distance between the crankshaft center line and the main gear center line, thereby altering the drive mechanism of the mechanical press and the velocity curve of the press slide.

Adjustable link motion press

The invention includes a tool for adjusting the timing of eccentrics on a crankshaft connected by an infinitely variable, pressure actuated connection. In cases where there is more than a single adjustable eccentric on the crankshaft, it is preferable that all of the eccentrics display the same timing characteristics relative to the crankshaft. If one eccentric has a location or timing different than that of the other eccentrics, the tool and method is used to adjust such eccentric to place it back into its preferred location and timing relative the crankshaft and other eccentrics.

Tool and method to adjust eccentric timing on adjustable stroke

A fluid control system for a rotating shaft which provides a seal to limit fluid leakage from around the shaft and which vacuums away any fluid leaking past the provided seal. The fluid control system may be installed around a rotating shaft such as a flywheel in a press. The fluid control system includes a housing which forms a clearance space with the rotating shaft in which fluid, such as oil being used to create or service the flywheel bearing, can be collected. A seal is provided between the rotating shaft and the housing to prevent fluid leakage from the clearance space. A vacuum mechanism positioned along a leakage path beyond the seal is provided with an air duct through which passes a vacuum induced air flow which vacuums away fluid leaked from the seal. The air duct is preferably configured to include a radial clearance between a portion of the fluid collection system and the rotating shaft such that relative axial movement therebetween does not compromise the vacuuming capabilities of the vacuum mechanism, and therefore the fluid collection system can be employed with axially reciprocating or moving rotating shafts.

Fluid control system for rotating shaft or flywheel

An adjustment stroke connection for a mechanical press with an eccentric bushing is disposed within a press connection member with a second eccentric member disposed within the eccentric bushing. A rotatable crankshaft is connected to the second eccentric member. A mechanism is included for connecting the eccentric bushing with the press connection member to prevent rotation therebetween and permitting rotation of the second eccentric member with the eccentric bushing whereby rotation of the crankshaft, when the mechanism is activated, causes a press stroke adjustment.

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Wapakoneta, OH, United States of America

Richard J Oen