Abstract: With a method of controlling synchronous drive of a plurality of pressing machines, each of the pressing machines has a motor, a drive shaft to which a torque of a flywheel driven by the motor is transmitted through a clutch and a slide driven by the drive shaft so that a rotational position of the drive shaft of each of the pressing machines is synchronous each other. The method has a step of detecting actual velocity information of the motor and a step of detecting actual rotational-position information of the drive shaft. The detected actual rotational-position information is compared with the reference rotational-position information from a reference rotational position information generating section. Based on the result of the comparison, the reference velocity information from a reference velocity information generating section is compensated into characteristic reference velocity information of each of the pressing machines.
Abstract: A braking system preferably for an in-line skate includes a brake pad mounted to a forward end of a skate frame and an elevated front wheel attached to the skate frame by two pivot arms. The pivot arms are biased forward which is in a clockwise direction with respect to their pivot point. When skating normally, the pivot arms bias the wheel against the brake pad, but the wheel is elevated from the skating surface and thus the brake is not engaged. When skating in a rearward direction, or desiring a push start, the skater rotates the toe portion of the skate downward and raises the heel. The front wheel will engage the skating surface and the reaction force on the wheel due to friction between it and the skating surface which will urge the wheel forward and increase the contact pressure between it and the brake pad.
Abstract: A protective uniform for a high-risk or high-impact activity or sport has a rear rigid shell, an artificial spine which may articulate at two sections attached to the shell, and a damper mechanism between the shell and artificial spine. In addition, the artificial spine may be attached to conventional or modified back and hip pads and/or a harness such as worn by rappellers or skydivers. The shell preferably extends from the wearer's head to the tailbone and across the back. The top portion of the shell together with side shields and a face shield form a protective enclosure for the head, inside of which a conventional helmet may be worn. The side shields preferably are movably connected to the rigid shell and are also connected to conventional or modified shoulder pads. The artificial spine is preferably formed in three sections, each section being connected to the other by a limited range universal joint to provide a range of motion comparable to the human neck and the human back.
Type:
Grant
Filed:
August 19, 1999
Date of Patent:
June 4, 2002
Assignee:
Hemisphere Group, Inc.
Inventors:
Ronald A. Holland, Joseph M. Skorpen, William L. Fowler
Abstract: In an injection stretch blow molding method, at least one injection molded preform is transferred from a preform molding section to a blow molding section by way of a transfer section and the at least one preform is blow molded into at least one container in the blow molding section. In the preform molding section the at least one preform is injection molded in an upright state with an open neck section thereof facing upward. In the transfer section, the at least one upright preform is turned upside-down and transferred to the blow molding section in an inverted state. Then, the blow molding section blow molds at least one container from the at least one inverted preform.
Abstract: An apparatus for determining various physical quantities such as temperature, pressure, stress, strain, distance and the like in a manner such that a change in the physical quantity of interest results in a measurable change in the frequency of oscillation of a signal generated within the apparatus.
Abstract: A heat blow molding apparatus includes a supply section 110, a heating station 112, a transfer section 114 and a blow molding station 116, all of which are disposed linearly in a direction A in which preforms 118 are carried. The supply section 110 supplies the preforms 118 each having a neck portion in their inverted state. The heating station 112 simultaneously heats the inverted preforms 118 while they are being carried parallel to each other. The transfer section 114 transfers the inverted preforms 118 after they have been heated by the heating station. The blow molding station 116 simultaneously blow molds the inverted preforms 118 transferred from the transfer section 114 into containers.