A circuit breaker having stationary and movable contacts operable between open and closed positions with the movable contact being biased in an open position. The movable contact is mounted to a contact and spring holder which engages one link in a toggle means. The first link is connected to a second link which has a drive pin secured thereto, and the second link is pivotally connected to a toggle lever. A cam is secured to a rotatable drive shaft, and the cam engages a cam roller which is secu...

A holding chamber may be supplied from a storage vessel system with a cryogen, such as liquid CO.sub.2, or it may itself be large enough to take the place of a separate storage vessel. The temperature within the holding chamber is reduced to the triple point or below to form a refrigeration reservoir of solid cryogen, as by removing vapor from the chamber to cause evaporation or by employing mechanical refrigeration. The stored cooling power of the reservoir is later employed to meet a large or ...

A device for use with a telephone transceiver to automatically generate any one of N stored dialing codes employs N digital phone number storage registers, and a set of N/2 pushbuttons. A display panel having N display areas on which the stored numbers may be written is supported in sliding relationship with the pushbuttons so that either of two display areas may be moved into operating relationship with each button. Switches controlled by the position of the panel and by the command buttons con...

A cover for a mound of stored bulk material, such as a round bale, which has an outer surface and ends, has sufficient dimensions to cover more than 50% of the outer diameter of the round bale. The terminus of the cover closest to the ground or storing place contains a tie rope for passing around the bale below its diameter to secure the cover. An added feature is an end flap devised to cover both ends of the round bale. The flap includes provisions for tightening as the stored bulk material shr...

A stored charge device of the general type designated as an MNOS field-effect transistor, has its operation improved by embedding a thin metal layer between two insulating films used in the transistor. The embedded metal layer technique is also used to provide a two-terminal thin-film stored charge device, consisting of a "metal-insulator-embedded metal-insulator-metal," sandwich structure which can be used in high-density memory arrays.

A ready stored power cord assembly having a cord spool slidably arranged in a receptacle for movement between a position in which the spool is entirely within the receptacle and a position in which the spool is out of the receptacle. A plurality of spools, each provided with an associated power cord, may be arranged in a single receptacle. Electrical sockets connected to the cords are removably mountable in associated apertures provided in a cover which is pivotally mounted on the receptacle and...

A stored energy ejector mechanism is disclosed and described and includes an ejector plunger member which is propelled by a spring-bias induced by an actuator lever actuated by a stroke of a punch press and the like. The stored energy in these springs is released and the propelling or ejection motion of a plunger member is begun by the actuation of a trigger mechanism whose release time is selectively established and preferably occurs during the same stroke of the press mechanism in which is pro...

A stored energy ejector mechanism is disclosed and described and includes an ejector plunger member which is propelled by a spring-bias induced by an actuator lever actuated by a stroke of a punch press and the like. The stored energy in these springs is released and the propelling or ejection motion of a plunger member is begun by the actuation of a trigger mechanism whose release time is selectively established and preferably occurs during the same stroke of the press mechanism in which is pro...

Using documents that are encoded with a value that is decremented and re-encoded following a transaction, the security system of the present invention uses a security word which is encoded only at the time of issue and a data word that includes security information that may be compared with the non-reencoded security word with the result that a portion of the information is never re-encoded during use to permit a valid encoding of duplicate documents using the device normally used to read and re...

A movable contact is adapted to engage with and disengage from a fixed contact within a circuit breaker housing. A contact arm, coupled to the movable contact, is caused to trip when appropriate means are actuated. The invention resides in apparatus for actuating such means including a ferromagnetic material armature latch partially rotatable about a housing axis. The latch has a first retaining means and a first coupling surface. A latch member, partially rotatable about a housing axis, has a s...