Abstract: A process chamber (5) has an interior space (39). In the interior space (39), there is a receiving region (15) for workplaces (3). The process chamber (5) has an opening (12, 14) for the entry and exit of workplaces (3). The process chamber includes an arrangement (17, 19, 25, 29, 33, 37, 35) for injecting gaseous fluid into the interior space (39), The arrangement for injecting gaseous fluid has at least one nozzle (17, 19) for producing a fluid flow curtain (21, 23) between the opening (12, 14) and the receiving region (15) for workplaces (3).

Abstract: A system is provided for properly resizing a window shade to fit within a window frame adjacent a window. At least one ruler strip is provided with visible graduations thereon. Indicia are provided adjacent at least some of the graduations. The indicia are descriptive of a width of a window frame in which the window shade will fit when the window shade is cut at the graduation adjacent to that indicia. A position of the graduations and the corresponding indicia are misdescriptive of a width of the window shade so that clearance around the perimeter of the window shade and cutting of both edges of the window shade are accommodated. Both rectangular window shade and arched window shade sizing systems are provided. A retainer is also provided for holding and guiding of a cutting tool during cutting of the window shade for proper resizing.

Abstract: The present invention provides a measurement apparatus particularly suited for layout work. More specifically, the present invention is useful for taking a single measurement of a span or object, dividing the measured length into a desired number of equal segments, and providing indicators for marking those points.

Abstract: The tool for locating a center mark for embroidery on articles such as garments includes a planar body having orthogonally-related legs with respective exterior and interior edges. Index markings are provided on the legs along the linear edges. The index markings include indicia identifying a plurality of corresponding preestablished garment sizes along the linear extending edges, respectively. By aligning common selected sizes along the edges with the vertical centerline of a folded garment and a shoulder portion of the garment, respectively, the location of the embroiderer's center mark on the garment is identified at the intersection of the linear edges. The interior edges of the tool may also used to form marking lines where conventional hoop grids are not available.

Abstract: A stud layout template for marking locations for the placement of studs on a floor plate or a ceiling plate using center lines on the respective floor or ceiling plate. The stud layout template includes a plate having a main portion and an end portion outwardly extending from the main portion. The main portion has a cutout therethrough having an outer periphery comprising a pair of ends and a pair of sides extending between the ends of the cutout. The plate has an extent extending into the cutout from a first end of the cutout. The extent of the plate has a pair of side edges converging together to form a pointer vertex positioned substantially equidistantly between the sides of the cutout.

Abstract: A measuring tape is provided for quick determination of the center of a distance without requiring the calculation of the distance. The measuring tape includes two parallel edges and an ascending measuring scale along each edge printed on the same face of the tape and beginning at the same end of the tape. One of the scales has units calibrated to a conventional unit of length measurement. The second measuring scale has units calibrated to be exactly half the unit of the first scale.

Abstract: A beam has a slide carrying one arm of calipers to be applied diametrically to an automotive vehicle tire. Indicating means for the calipers includes a beam scale of buttress configuration and an index carried by the slide cooperating with inclined portions of the buttress scale and graduated in decimals or fractions of a unit of the beam scale.

Abstract: An automated measuring scale for making linear measurements includes a guide bar and an index marker that is moved automatically along the bar to predetermined positions commanded by the operator. A manually operated keyboard is provided to enter the position commands, and a digital display illustrates the commands as they are entered. The scale of movement is adjustable for an infinite number of variables, and the index marker can be repeatedly stepped along the guide bar by fixed increments when desired. In a manual mode of operation, the index marker is positioned to any location along the guide bar and the display automatically reveals the marker position in any selected scale.

Abstract: A ruler means for dividing a distance into an optional number of parts, e.g., into equal parts. The ruler means comprises a ruler with a number of numbered scales with a zero point. Said ruler is, along said scales, provided with holes for plotting an optional division of an auxiliary distance such the the projection thereof comprises the actual distance to be divided. The holes are equidistantly spaced and tapered toward the rear face of said ruler.