An upholstery spring comprises a steel spring wire made of a microalloyed steel and a color indicator arranged thereon at least in some regions, the microalloyed steel containing between 0.004 to 0.015 wt.-% of one or more alloy elements. The invention further relates to a method for producing an upholstery spring, a mattress or a piece of upholstered furniture having such an upholstery spring.

A method of applying a marking to a part in a stamping die includes moving a component of the stamping die, the component having a mechanical application device secured thereto. A controlled volume of a marking medium flows through the mechanical application device during the moving such that a volume of the marking medium is controlled by the moving of the component during a stamping die operation. In one form, the component is an upper die of the stamping die.

A harsh environment enclosure for use with sensor systems, such as cameras. The enclosure can include a housing having an end wall, sidewalls, a top wall, and a bottom wall. A door is hinged to the top wall. The enclosure can have a linkage assembly including a door lever having an elongate first end portion connected to the door, a laterally extending second end portion, and an elbow positioned therebetween. A pivot arm having a proximal end is connected to an interior surface of the housing and a distal end of the pivot arm is connected to the elbow. An actuator can be connected between the housing and the laterally extending second end portion. The linear actuator can be positioned with respect to the door lever and pivot arm to move the door to an open position when extended and a closed position when retracted.

An embossing system designed to mark metal marker plates. The embossing system includes a feeder system that presents a marker plate, a drive sub assembly secured to the feeder system, and a gripper system that grips the marker plate from the feeder system. The feeder system has a fixed side wall secured to a base plate and a moveable side wall positioned a distance from the fixed side wall. Marker plate guides are secured to the side walls for providing support to a stack of marker plates positioned in the feeder system. Adjustable feed gates are secured to the sidewalls to accommodate adjustments for maker plate thickness variations.

A system and method for applying a marking to a part in a stamping die is provided by the present disclosure. The system includes a mechanical application device having a controlled volume of a marking medium that is coupled to movement of the stamping die. In one form, the controlled volume of the marking medium is not regulated by either an external pneumatic source of an external electrical source.

In an embodiment, a workpiece includes a hot-formed metal body and a marking, wherein the marking comprises a phosphor and/or pigments which are at least partly arranged on the metal body and which exhibit a reflection behavior and/or a reflectance behavior and/or an albedo behavior deviating from the metal body.

A metal bend pipe having a bend portion bent in a semi-circular arc shape is provided, in which an identification part that enables one of the two end portions of the bend portion to be identified as the bending-start side or the bending-end side is provided, and the identification part is integrally formed as a protruding and/or recessed three-dimensional region. Thus, it is possible to easily and reliably identify which of the two end portions of the bend portion is the bending-start side or the bending-end side.

A metal workpiece indentation marking device, comprising a frame, a striking head, an automatic marking die, a gripper and a two-dimensional moving mechanism, wherein the top of the striking head is connected to the frame; the striking head can move up and down; the automatic marking die is fixedly disposed at the bottom of the striking head; a clamping jaw for clamping a metal workpiece is disposed at the top of the gripper; the gripper can move back and forth or left and right under the action of the two-dimensional moving mechanism, such that a position to be marked at the top of the metal workpiece can be located under the automatic marking die.

The present application discloses wheel engraving equipment, which includes a lower lifting system, lower flange engraving systems, inner rim engraving systems, a wheel positioning and clamping system, an upper lifting and rotating system, a synchronous clamping and rotating system and the like.

A gutter piece and a method of forming the gutter piece including the steps of: obtaining a gutter forming apparatus with a marking subassembly; obtaining a supply of gutter material; through the gutter forming apparatus, progressively forming the gutter material into completed gutter pieces, each with a length, as the gutter material is advanced in a forming path; and through the subassembly, continuously making discrete visible marks on the gutter material as the gutter material is advanced that: a) reside at predetermined intervals along a length of each of the completed gutter pieces, and b) are located to facilitate controlled interval placement of hangers that are used to support the completed gutter pieces in an operative position on a structure.