A collapsable umbellate frame having four support arms extending forwardly from a hub member is braced by a pair of rear legs into a position of stability with the free ends of two of the support arms resting on the ground and the free ends of the other two support arms positioned over them. A pair of laterally spaced apart stanchion lines are interconnected between the upper and lower free ends of the support arms. A ball stopping net of a vertical dimension substantially larger than the length...

The measurement of small differential temperatures over a wide range of absolute temperatures is accomplished by cyclically switching the excitation polarity to a bridge circuit including the temperature sensors. Additionally, the measuring circuitry includes a differential-differential amplifier configuration and a pair of compensating conductors in the cable to each sensor to achieve equal resistance in each excitation path.

Apparatus and method of evaluating and installing a wireless system, and is suited for a radio frequency identification (RFID) system. The apparatus determines the suitability of a particular site for use with specific RFID tag types. The apparatus comprises a tag evaluation module having a drobe, a wireless transmitter, and a processor. The probe is coupled to a tag under evaluation and information, such as tag power and data, is collected and stored by the processor. The information may be pro...

A building structure which simulates the appearance of a traditional log structure while incorporating modern wood framing construction techniques is disclosed. A number of interlocking log heads form the corner of the structure. Each log head abuts against a stud or post displaced a distance from the corner. Wall boards are affixed to extend horizontally over sheathing attached to studs and abut each log head. Small spaces between the wall boards are filled with a chinking element, which may be...

The basic press structure includes a printing couple consisting of a lower printing cylinder, having a single work area, and a large printing cylinder, having an effective diameter which is a whole multiple, greater than one, of the effective diameter of the lower printing cylinder, and has a number (equal to the whole multiple) of work areas, in each of which one of a variety of the especially constructed removable and interchangeable segments may be mounted. One of a variety of different print...

A sheet-fed, high-production, multi-purpose printing press assembled from a group of especially constructed components, including frames, cylinders, sub-assemblies, printing modules and removable and interchangeable segments, each being adapted to be assembled in a wide variety of combinations with the others to produce various simple configurations, to perform single printing functions with high efficiency, as well as various more complex configurations to perform a variety of printing function...

An apparatus for generating ozone from an oxygen supply. The apparatus comprises electrodes mounted in an enclosure and a high voltage circuit coupled to the electrodes for generating an electric field. The high voltage circuit receives AC power and includes a control circuit for producing a linearly controlled high voltage output from the AC feed for energizing the electrodes. The apparatus also includes an in-line sensor for determining the level of ozone being produced without affecting the o...

A self-cleaning steam iron with means to purge the iron of water and steam by providing a substantially large opening in the iron's water tank separate and distinct from the metering orifice through which water is normally dripped to make steam in a flash boiler type iron. The large opening is controlled so that, upon dumping, the water is conducted directly to the boiler in the hot soleplate so that the additional steam suddenly generated substantially cleans the entire tank, steam distribution...

A method and apparatus for producing multiple high quality copies of each of a series of one or two sided originals on ordinary paper while obtaining maximum net production in terms of both the number of originals copied and the number of copies produced, wherein a first right reading offset lithographic master or pair of masters are produced by known means from one or both sides of a first original, processed, pre-wet and attached to the plate holding surface or surfaces of an offset lithograph...

The invention discloses a steam and power spray iron wherein generated steam pressure is used to power the spray assembly. The invention is directed to an improvement in the spray assembly that provides a continuous steam tube directly connected at one end to the spray assembly and extending down into close proximity to the steam generator at the other end whereby, as soon as steam is generated, it is ducted directly and immediately to the spray assembly to provide steam power therefor without s...