Abstract: To provide a power reserve display mechanism having a mainspring remaining amount display showing a novel behavior and a mechanical timepiece having the same. A power reserve display mechanism of a mechanical timepiece includes a displacement conversion mechanism having a first rotation input portion coupled to a ratchet wheel and rotated in accordance with rotation of the ratchet wheel and a second rotation input portion coupled to a barrel wheel and rotated in accordance with rotation of the barrel wheel as well as an output portion moved linearly in one direction in accordance with rotation of the first rotation input portion and moved linearly in other direction in accordance with rotation of the second rotation input portion, and mainspring accumulating remaining amount display means provided at the output portion of the displacement conversion mechanism for displaying a mainspring accumulating remaining amount by a position along a linear line.

Abstract: An apparatus for generating rotative force using spring according to the present invention permits rotative force of an input shaft to be intermitted to an acceleration gear by an intermitting gear, an available time for the rotation of an output shaft to be confirmed by an indicating means, and the operation to be stopped by a stopping means. In addition, the apparatus causes the rotation of the output shaft to be stopped exactly in ‘0’ position of the available time by a setting means. Therefore, since the present invention intermits rotative force only by the intermitting gear, a production cost is reduced by the simple configuration, and thus the apparatus according to the present invention could be provided with low cost. In addition, the convenience in use is increased, since user could confirm the available time of rotation, the operation could be stopped while generating the rotative force, and the apparatus could operate in an inclined or upside down position.

Abstract: An apparatus for generating rotative force using spring according to the present invention permits rotative force of an input shaft to be intermitted to an acceleration gear by an intermitting gear, an available time for the rotation of an output shaft to be confirmed by an indicating means, and the operation to be stopped by a stopping means. In addition, the apparatus causes the rotation of the output shaft to be stopped exactly in ‘0’ position of the available time by a setting means.

Abstract: A manual sample rotator and method provides a mechanical orbital motion, which is useful in medical industries. The rotator has a substantially rectangular orbiting member with four guiding wells, complementary to four guiding posts provided on a fixed member, such as a housing. Each guiding post is inserted into one of the guiding wells. The guiding wells are larger than the counterpart guiding posts so that when the guiding posts are seated into the wells, the clearance therebetween allows the orbiting member to move in the horizontal plane in all directions within the bounds of the guiding wells. The guiding post and well arrangement thus restrains the orbiting member from rotating about the orbital axis, but permits the member to orbit thereabout. The orbiting member is orbited around a main orbital axis using an offset crank (output shaft end), which rotates about the main orbital axis and is rotatable about an axis offset from the main axis relative to the orbiting member.

Abstract: An energy supply device for supplying a predetermined amount of energy by means of rotating rollers driven by an electric motor to a power toy driven by elastic materials is disclosed.

Abstract: A control system for use with a braking mechanism which employs an energy-storing spring and an electric rotating servomotor is disclosed. The system operates employing a direct or indirect measurement of the stored braking force. When an indirect approach is used, a pair of selsyns supply a measured rotational parameter which is related to braking force. After suitable processing, which includes the use of a discriminator and counter, a parameter relating to the stored braking force is compared with a desired value at a summing point to provide a correction parameter for braking control. When direct braking force measurement is used, the measured braking force is supplied directly to a summing point for comparison with a desired value. In both direct and indirect measurement, a differentiator is included which supplies the derivative of the measured value to the summing point. The output of the summing point is a correction parameter which operates triggering devices for brake actuation and release.