| Patent Number |
Title Of Patent |
Date Issued |
| 4563578 |
Beam type safety device |
January 7, 1986 |
| A beam type safety device having a plurality of light emitting elements and a plurality of light receiving elements associated with the light emitting elements wherein the light emission operation of the light emitting elements and the light receiving operation of the light receiving ele |
| 4489578 |
Slide stop position control apparatus of a press |
December 25, 1984 |
| A slide stop position control apparatus of a press machine which can automatically effect slide stop position adjustment when the die and/or the punch are changed. The apparatus comprises a first detector for detecting the tip of the punch and a second detector for detecting an upper |
| 4309696 |
Trouble detecting unit in an optical security device |
January 5, 1982 |
| A trouble detecting unit in an optical security device intentionally produces a state which is equivalent to a state in which the security system is out of order so as to check whether an emergency stop signal is produced or not and judges that the security system is in order if the |
| 4298114 |
Control circuit for a press |
November 3, 1981 |
| A control circuit for a press can perform various control functions simply by electrically detecting two modes of change, i.e. from OFF to ON and from ON to OFF, of a single rotary cam switch mounted on a press. Until reaching a first slide stroke angle at which the first change of the |
| 4246523 |
Brake timing control method and apparatus therefor |
January 20, 1981 |
| Disclosed is a brake timing control method and apparatus for use with a press machine including a press slide driven through a crank shaft by a variable speed motor to stop the moving press slide at its top dead center regardless of the speed of rotation of the crank shaft. The motor spe |
