...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7213680 | Acoustical wall covering assembly pleated and secured in situ for covering walls in movie theatres and method An acoustical wall covering assembly (10) with pleats (11) formed and attached in situ to a trim member for covering a wall of a movie theatre, in which a panel (22) of an acoustical wall covering attaches to a pleating member (22) having... | 05/08/2007 |
| 7189448 | Apparatus and process for producing a corrugated web and an absorbent article comprising a corrugated web Absorbent article comprising a liquid-impermeable cover sheet, a liquid-permeable cover sheet, and an absorbent body between the liquid-impermeable cover sheet and the liquid-permeable cover sheet. Any one or all of the liquid-impermeable cover sheet, the liquid-per... | 03/13/2007 |
| 5590821 | Method and apparatus for folding and pressing bindings and ruffles A binding tool for assisting in the task of folding and pressing bindings and ruffles and to a method of use thereof. The binding tool has a tool body having a top side and a bottom side and a slot disposed through the body for receiving a strip of cloth ... | 01/07/1997 |
| 5358155 | Apparatus and method for providing a pleated skirt effect to tablecloth An apparatus and method for providing a pleated effect to a tablecloth. A hoop having a plurality of undulating portions is positioned below the table top and above the floor such that the tablecloth is supported by the hoop with folds of the tablecloth f... | 10/25/1994 |
| 5265778 | Method of manufacturing reversible pleated material A method of manufacturing material having knife-pleats on either side, for use in manufacturing reversible knife-pleated garments such as skirts or dresses. Patterned material is woven with alternating narrow and wide sections, wherein each narrow section... | 11/30/1993 |
| 5137190 | Apparatus for forming pleats and the like in fabric structures An apparatus and method for forming parallel and non-parallel pleats in a fabric structure such as a curtain or drape includes a generally planar baseplate and a segmented forming member hingedly attached thereto and overlying the baseplate. The segmented... | 08/11/1992 |
| 5080030 | Device for forming and sewing folds Device for forming and sewing folds is provided in which one double fold DF and a plurality of single folds SF, located at spaced locations therefrom, are formed simultaneously on a cut, and the folds are also to be laid out flat with the folding tools. T... | 01/14/1992 |
| 4917277 | Pleat forming apparatus A pleat forming apparatus is formed with a "U" shaped framework including a plurality of rotatably mounted threaded rods therethrough. The threaded rods are mounted rotatably through forwardly extending legs of the "U" shaped frame wherein the threaded ro... | 04/17/1990 |
| 4779549 | Pin-tucking device in pin tuck sewing machine A pin tucking device for forming a plurality of pleats-like folds on a fabric has a flat base plate for fixing guide plates in position in cooperation with guide-plate mounting plates. One of the guide-plate mounting plates which is mounted on the base en... | 10/25/1988 |
| 4766825 | Pin-tucking device in pin tuck sewing machine In a pin-tucking device for forming a plurality of pleats-like folds on a fabric, guide-plate mounting plates have comb-like kerfs for engaging and disengaging hook portions of guide plates so that guide plates may be varied in number to change the interv... | 08/30/1988 |
| 4650102 | Apparatus for forming apertures in pleats In a pleat forming machine, apertures are defined in a pleat simultaneously with the formation of the pleat. A pusher bar carries a cutting member which projects into a recess defined in a pleating bar when the two bars are brought together to form the pl... | 03/17/1987 |
| 4607770 | Heat treatment of fabrics and other sheet material Apparatus and methods of heat-treating laminar materials, in particular fabrics including materials such as synthetic leather (laminated polyurethane) are disclosed. The apparatus comprises a pair of cooperating rollers defining a nip through which the ma... | 08/26/1986 |
| 4542602 | Method and apparatus for making a Roman shade A generally upright fabric sheet supporting frame has a transversely extending pleater support mounted thereto. Plural elongated pleaters are slidably mounted to the pleater support and are aligned in a transversely extending generally horizontal row. The... | 09/24/1985 |
| 4420102 | Automatic contouring napkin ring A napkin ring which easily and quickly imparts a decorative shape to a napkin inserted therein comprises an annular-shaped external member 2 having a cantilevered tongue 4 extending from an inside surface of said external member toward and past the center... | 12/13/1983 |
| 4266699 | Pleat forming means and method A jig used to both space and form pleats. The jig has one finger which abuts a datum surface on a previously formed pleat (the datum surface being either a sew line or the loop) and another finger over which the material is folded to form a loop, so that ... | 05/12/1981 |
| 4266700 | Freely adjustable pin-tucking device for use in a pin tucking machine A guide board for use in guiding fabric in a pin-tucking sewing machine in which the guide members are made freely detachable and replaceable to obtain a desired pattern of pin-tucking without changing the guide board but simply removing and/or replacing ... | 05/12/1981 |
| 4157775 | Apparatus for forming pleated materials Apparatus for use in fabricating pleated materials, particularly for forming pleats in drapery materials such as swags and cascades. The apparatus greatly facilitates and eliminates some certain hand operations. A plurality of parallel upstanding spaced m... | 06/12/1979 |
| 4042155 | Fabric pleater guide including a pleat former A simplified adjustable fabric pleater guide particularly for use in spacing and forming pinch pleats in draperies. A scale is provided on a measuring stick which may be metrically calibrated, as well as calibrated in inches, while an index is provided on... | 08/16/1977 |
| 3974946 | Pleat measuring and forming device A device to facilitate the pleating of a fabric material comprising a substantially flat sheet of plastic having alternating scorings on each side of the plastic device. On one side the scorings have a substantially V-shaped cross-section and on the oppos... | 08/17/1976 |
| 3972768 | Carpet seaming tape, electric iron therefor A hot-melt carpet seaming tape having means for cooperating with a specially designed electric iron to maintain registery of the tape and iron while the heated iron is moved along and over the tape beneath the abutting edges of carpet segments to adhere t... | 08/03/1976 |