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Said security clip formed having a mainstay-wall member which projects upwardly into a channel of the frame structure adjacent the inner side of said depending flange Ī spring-tension-engaging means formed longitudinally along the lower portion of said mainstay-wall member, whereby said device is forceably retained within said channel, said spring-tension-engaging means comprising a jaw member formed in a substantially S-shaped configuration, whereby said depending flange of said frame structure is forceably received between said mainstay member and said jaw member Īn inwardly projecting, abutment-lip member formed longitudinally along the upper portion of said mainstay-wall member so as to be engaged by said window or door, when raised upwardly within said channeled frame structure, to limit the movement thereof andĪn angularly disposed ear member formed on opposite ends of said abutment-lip member to engage said depending flange of said channel, when said lip is engaged by said window or door andĪ space-control means mounted to said abutment lip to accommodate for the different spaces established between various windows or doors and their associated frame structures, so as to control the upward movement of said windows or doors within said frame structures.Ģ.
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A security device to prevent removal of sliding windows and doors which are slidably mounted within a channeled frame structure, wherein the device comprises:Ī security clip adapted to be removably attached to a depending flange of said channeled frame structure A spacer bar is adapted to be positioned on the abutment-lip member to accommodate the various sizes of windows or doors.ġ. Ears are formed at the opposite ends of the abutment lip for engagement with the depending flange so as to reinforce and increase the strength and resistance of the abutment lip. In order to prevent upward lifting of the window or door, the wall mainstay is formed having an inwardly bent, abutment lip for engagement with the window when raised from the lower frame-structure track. The security clip is arranged to be force-fitted over the depending flange of the frame structure, whereby the clip is held in a predetermined position relative to the sliding window or door. The device is defined by a security clip having a substantially flat wall forming a mainstay and a spring-tension-jaw member integrally formed along the lower edge thereof. Silicon is also an important ingredient in silicone, a class of material that is used for such things as lubricants, polishing agents, electrical insulators and medical implants.Įstimated Crustal Abundance: 2.82×105 milligrams per kilogramĮstimated Oceanic Abundance: 2.A security device to prevent the unauthorized removal of sliding windows and doors from the frame structures in which they are slidably supported. Silicon tetrachloride (SiCl4) is used to create smoke screens. Sodium silicate (Na2SiO3), also known as water glass, is used in the production of soaps, adhesives and as an egg preservative. Silicon carbide (SiC) is nearly as hard as diamond and is used as an abrasive. Silica gel, a colloidal form of silicon dioxide, easily absorbs moisture and is used as a desiccant. Silicon dioxide is extensively used in the manufacture of glass and bricks. It commonly takes the form of ordinary sand, but also exists as quartz, rock crystal, amethyst, agate, flint, jasper and opal. Silicon dioxide (SiO2), silicon's most common compound, is the most abundant compound in the earth's crust. These crystals, when doped with elements such as boron, gallium, germanium, phosphorus or arsenic, are used in the manufacture of solid-state electronic devices, such as transistors, solar cells, rectifiers and microchips. Single crystals of crystalline silicon can be grown with a process known as the Czochralski process. Amorphous appears as a brown powder while crystalline silicon has a metallic luster and a grayish color. Two allotropes of silicon exist at room temperature: amorphous and crystalline. Today, silicon is produced by heating sand (SiO2) with carbon to temperatures approaching 2200☌. Silicon is the seventh most abundant element in the universe and the second most abundant element in the earth's crust. Silicon was discovered by Jöns Jacob Berzelius, a Swedish chemist, in 1824 by heating chips of potassium in a silica container and then carefully washing away the residual by-products. Really? An OIL? Then how do you describe/ascribe to the following? I'm not aware of ANY OIL that will sustain 5905 degrees F to a boil point!ĭensity: 2.3296 grams per cubic centimeter