NL1028529C2 - Roller shutter protects shop window opening against ram-raiding and comprises series of rotatable interconnected shackles - Google Patents

Abstract

The series (28) of rotatable interconnected shackles (1)(10)(11) comprising the roller shutter works with a roller shaft onto which the shackles can be rolled for freeing the shop window opening (5) and unrolled for closing the opening. Guide rails (2) are located at the outer ends of the shackles, in which the outer ends of the shackles are displaceably located for their guidance along the opening. The outer end of each shackle and the corresponding guide rails have devices (12) for anchoring the outer end of the shackle against movement transversally out of the corresponding guide rails.

Description

Candle pads (to place the candle recto m © sa candlestick)

A Candlepad is a simple but very effective means to keep candles centered and "fixed" in a candlestick. The shape of the Candlepad is a mathematical figure, cut from a flexible material, covered with a layer (aluminum / metal foil) that delays the flammability in order to form a bowl together with the seat of the candlestick. American patent US 4 036 577 A is a candlepad known in the form of a thin disc of polyurethane foam that has been treated with fire-extinguishing chemicals. In addition, an old American patent US 1 647 898 discloses a cross-shaped candlepad of metal, the surface of which has been roughened or is ribbed. The figures are variable and the dimensions of the Candlepad can vary from 15 mm to 200 mm with a thickness of 1.5 to 20 mm. The Candle pad is made of fire-retardant, synthetic fibers with quarts and is provided with an aluminum / metal foil of 0.01 mm to 0.2 mm. (drawings 1 to 7). The material of the Candlepad is compressible (springy). The color of the pad and the foil are in the series of: white, green, red, yellow, brown, blue orange and any intermediate shade is possible. Drawings, ready-made product to clearly illustrate the operation (drawings 1 to 7).

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Material efiiEgiMdhanDnBcna:

Material properties Unit Minimum Average Maximum

Weight__Gr / m2 __-__ 550Gr / m2 __-

Thickness__mm __-__ 6mm __-

Carbon percentage 900 ° C% __ 2__I__ ~

Grain size__ASTM __-__-__-

Pull and stretch force__N / 4cm ____

Transversal direction___N__ 23.78N__N

Length direction ___ N__18.00N__N

Elasticity__%_____

Transversal direction ___% __ 38.97% __%

Length direction ___% __ 40.20% __%

Abrasion resistance__Mg / faz _____ _Mg / 10O0Ohz mg__250mg__mg _Mg / 2000hz mg__51Qmg__mg _ Mg / 3000hz mg 760mg | mg gamma gastellgaig;

Fiber: _ Synthetic material __

Coating: _High temperature resistance_

Mineral: _Quartz_

Color: Organic pigment dissolved in water and surface active agents

Test nm <n> tDa <n) <dle:

Wear resistance:

To determine the abrasion resistance of the material, a special machine is used in which an aluminum plate (hardness 95/105 brinell) is machined with a round piece of material with the properties as described above, with an area of 20 cm 2. The weight loss due to wear of the aluminum plate is determined after 1000/2000/3000 revolutions. The wear resistance is shown in mg.

Pull © after rack üameünte 1 o A special dynamometer is used. The material with the properties as described above is attached between two clamps and stretched on both sides with a stretcher of 10 mm / min and with a force shown in N.

The percentage of fiber stretchability to breaking point is shown.

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CsLedle pad upholstery: 1. Flexible base material 5 2. Metal foil / aluminum foil * 3. Colored pad with partial foil (bottom and top) 4. Colored pad (bottom) 5. Pad with top foil 6. with foil 10 7. without foil

Claims (7)

CLAIMS 1. Candle pad for centrally holding a candle in a candlestick, characterized in that the candle pad has a mathematical shape and is made up of at least two layers. Candle pad according to claim 1, characterized in that the candle pad is coated with a layer of fire-retardant aluminum or metal foil. Candle pad according to claim 2, characterized in that the aluminum or metal foil has a layer thickness of 0.01 mm to 0.2 mm. Candle pad according to one of the preceding claims, characterized in that a layer of the candle pad is made of fire-retardant and flame-resistant synthetic fibers with quarts, which layer is flexible and compressible. Candle pad according to one of the preceding claims, characterized in that the candle pad has a mathematical form in a cross-model. .15 Candle pad according to one of the preceding claims, characterized in that the thickness of the candle pad can vary from 1.5 mm up to and including 2 mm. Candle pad according to one of the preceding claims, characterized in that the size of the candle pad can vary from 15 mm to 200 mm. 20