Abstract: This system includes a self-contained, non-invasive system for collecting work and power performance data on nearly any kind of repetitive-motion exercise. See the glossary for definitions of terms used in this specification. It is non-invasive in that no permanent modifications need made to existing exercise equipment. It is a battery-powered system that remotely senses iterations of a moving part or body member, and records them with a time-stamp. It also records weight and distance of travel if they are input—but for some exercises this function may be deemed not necessary, or ignored. If time, weight, and distance are known then work and power metrics can be calculated on the data when it is analyzed on a host computer. This data can then be graphed to provide comparisons from workout session to workout session. The user can detect trends, and differences in performance as workout variables are manipulated.

Abstract: This system includes a self-contained, non-invasive system for collecting work and power performance data on nearly any kind of repetitive-motion exercise. See the glossary for definitions of terms used in this specification. It is non-invasive in that no permanent modifications need made to existing exercise equipment. It is a battery-powered system that remotely senses iterations of a moving part or body member, and records them with a time-stamp. It also records weight and distance of travel if they are input—but for some exercises this function may be deemed not necessary, or ignored.

Abstract: A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a random pattern from selected geometric shapes. Information, such as alphanumeric indicia or graphics, is printed on the stochastic screen to thus form a reflective diffraction device which is printable in a conventional manner while inhibiting reproduction of the printed information by conventional techniques, including black and white and color photo-reproduction and facsimile machines. The partially transparent black stochastic screen forms a diffraction grating on the metalized layer so that when illuminated from the light source of either a specular or diffuse illumination-type photocopier, random interference patterns of light occur at the interface of the metalized surface and the stochastic screen.

Abstract: A display for soft proofing an image to be reproduced using a set of selected printing colors includes a plurality of display elements each for displaying a color substantially spectrally matched to one of a set of printing colors.

Abstract: A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a frequency modulated pattern from selected geometric shapes. Information, such as alphanumeric indicia or graphics, is printed on the stochastic screen to thus form a reflective diffraction device which is printable in a conventional manner while inhibiting reproduction of the printed information by conventional techniques, including black and white and color photo-reproduction and facsimile machines. The partially transparent black stochastic screen forms a diffraction grating on the metalized layer so that when illuminated from the light source of either a specular or diffuse illumination-type photocopier, random interference patterns of light occur at the interface of the metalized surface and the stochastic screen.

Abstract: A shop towel is wrapped around a retainer having a base with a ratchet bar extending upwardly from one surface of the retainer base. The ratchet bar extends into a recess of a handle of a body portion having a contoured surface for receiving at one end the retainer and at the opposite end the hand of an operator. The ratchet bar is advanced into engagement with a spring actuated-pawl that extends transversely through the handle body portion. The pawl is axially movable in the handle and maintained by a spring in engagement with the ratchet bar. The ratchet bar is freely advanced into the recess and engaged by the pawl to maintain the retainer movably connected to the handle body portion. The engagement of the pawl with the ratchet bar prevents the retainer from being inadvertently disconnected from the handle until the pawl is pulled by a lever out of contact with the ratchet bar.

Abstract: A control area is imaged on photo-sensitive graphic arts material to be evaluated for the sharpness of images printed on the material through the various stages of the reproduction process. The control area includes a light transmitting image divided into a plurality of segments where the image is a sharp-edged line element of a fixed preselected width. The line element is repeated from segment to segment in a preselected pattern of line elements separated a preselected distance apart by a space. The first segment of a control area has a solid optical density. At the opposite end of the control area is positioned a second segment having a substrate optical density. An intermediate segment includes a plurality of sections in which the line elements in each section are spaced apart the same distance, and the spacing between line elements varies from one section to the next. Thus, a range of spatial frequencies of repeating line elements is provided in the control area.

Abstract: A device for indicating a quantitative change in dot area of an image in a printing process and the method of making the same. The apparatus includes a square matrix array on a substrate. Four square members are provided in the matrix array on the substrate. The square members are each equal in size and have certain of their corners in juxtaposition with certain corners from other square members to form a square center opening bounded by a side from each square member. The device also includes five circular shaped members, provided in the matrix array on the substrate. The circular members are each equal in size.