Abstract: A mailbox for receiving delivered mail includes a housing and a post for mounting the box to the ground. A door is connected to a shaft rotatably secured to the bottom edge of a door opening, and the door extends beyond the opening into a tail portion. A part of the housing floor is formed from a resilient material so that the door is normally stopped thereby upon opening. Should the door be forced further, the material will yield to allow the door to swing below the box to prevent damage. A security latch, hidden beneath the housing, includes a leaf spring normally positioned behind the door tail portion to prevent its opening. The spring may be moved into a slot in the door shaft, where the spring cooperates with a notch in the door to permit its opening. Upon closing of the door, the spring is released to its normal position, whereupon the door is again held shut. The flag target is carried at the end of a flag shaft that is rotatably and slidably secured to the housing interior.

Abstract: A mailbox for receiving delivered mail includes a housing and a post for mounting the box to the ground. A door is connected to a shaft rotatably secured to the bottom edge of a door opening, and the door extends beyond the opening into a tail portion. A part of the housing floor is formed from a resilient material so that the door is normally stopped thereby upon opening. Should the door be forced further, the material will yield to allow the door to swing below the box to prevent damage. A security latch, hidden beneath the housing, includes a leaf spring normally positioned behind the door tail portion to prevent its opening. The spring may be moved into a slot in the door shaft, where the spring cooperates with a notch in the door to permit its opening. Upon closing of the door, the spring is released to its normal position, whereupon the door is again held shut. The flag target is carried at the end of a flag shaft that is rotatably and slidably secured to the housing interior.

Abstract: A mailbox for receiving delivered mail includes a housing and a post for mounting the box to the ground. A door is connected to a shaft rotatably secured to the bottom edge of a door opening, and the door extends beyond the opening into a tail portion. A part of the housing floor is formed from a resilient material so that the door is normally stopped thereby upon opening. Should the door be forced further, the material will yield to allow the door to swing below the box to prevent damage. A security latch, hidden beneath the housing, includes a leaf spring normally positioned behind the door tail portion to prevent its opening. The spring may be moved into a slot in the door shaft, where the spring cooperates with a notch in the door to permit its opening. Upon closing of the door, the spring is released to its normal position, whereupon the door is again held shut. The flag target is carried at the end of a flag shaft that is rotatably and slidably secured to the housing interior.

Abstract: A self-contained apparatus for testing the ductility of a weld located within an elongated specimen having means for raising and lowering a ram over the specimen. The apparatus includes a pair of legs, each having a pair of spaced-apart rails for supporting a pair of spaced-apart rollers which define an opening. Each roller of a pair has a width sufficient for supporting the test specimen, and is connected to a corresponding rail pair to extend over the opening. An overarm is provided having a cylindrical bore for guiding a force-powering apparatus having a ram toward and away from the opening. A mandrel having a working surface is connected to the ram by an adapter. The mandrel is located with the working surface above but between the rollers. The specimen may be positioned on the rollers with the weld disposed between the rollers. The mandrel is forced downwardly by the ram, with the mandrel, contacting the specimen along the working surface to bend the specimen into the opening.

Abstract: A mailbox for receiving delivered mail includes a housing and a post for mounting the box to the ground. A door is connected to a shaft rotatably secured to the bottom edge of a door opening, and the door extends beyond the opening into a tail portion. A part of the housing floor is formed from a resilient material so that the door is normally stopped thereby upon opening. Should the door be forced further, the material will yield to allow the door to swing below the box to prevent damage. A security latch, hidden beneath the housing, includes a leaf spring normally positioned behind the door tail portion to prevent its opening. The spring may be moved into a slot in the door shaft, where the spring cooperates with a notch in the door to permit its opening. Upon closing of the door, the spring is released to its normal position, whereupon the door is again held shut. The flag target is carried at the end of a flag shaft that is rotatably and slidably secured to the housing interior.

Abstract: Apparatus for testing the ductility of a weld located within an elongated specimen is used with a separate apparatus having a lowerable ram. The apparatus includes a base defining a support surface having a central opening. Each roller of a pair has a width sufficient for supporting the test specimen, and is connected to the base to extend over the opening. A beam located above the base is guided for movement toward and away from the support surface, and is biased upwardly into a raised position over the surface. A mandrel extends downwardly from the beam, defining at its end a working surface. When the beam is in its raised position, the mandrel is located with the working surface above but between the rollers. The specimen may be positioned on the rollers with the weld disposed between the rollers. The mandrel is forced downwardly by the ram, with the mandrel contacting the specimen along the working surface to bend the specimen into the opening.

Abstract: A method and apparatus for testing the ductility of a weld formed within a specimen utilizes a cylindrical mandrel and roller mounted for rotation along mutually parallel axes. Relative linear movement of the mandrel and roller clamps a specimen therebetween. A shoe having a contact suface is supported and connected to the mandrel for rotational movement therewith. The shoe may be moved linearly in a direction normal to the contact surface and along a line tangential to the mandrel to place the contact surface in contact with the specimen. In carrying out the method, a rotational driving force is applied to the mandrel, whereby it and the shoe are rotated to bend the specimen about the mandrel.

Abstract: A control system activates motor vehicle windshield wipers when an improved sensing element senses precipitation. The element comprises a thin, substantially planar sheet of electrically insulating material which is impervious to precipitation. First and second electrodes are secured to the sheet and in gapless contact therewith to form a precipitation sensing edge. The element is preferably supported at one end within the center of a trough formed within a holder to present the sensing edge to the atmosphere. The holder facilitates mounting and also protects the element from damage.