Abstract: A safety key designed specifically for use in connection with concrete wall form panels of the "Steel-Ply" or metal-encased type. The key affords an anchor eyelet or hole for receiving the hook which invariably is provided on one end of a safety belt that is worn by a workman who is obliged to work on the concrete wall form at an extremely high or unsafe level or elevation. The key in one form of the invention embodies a shank and an enlarged head, the shank being received in the opposed notches which are formed in the outermost abutting ribs of the mating and abutting frame members or bars of the marginal reinforcing frames of two adjacent wall form panels, and being removably locked in place by a pair of conventional coacting wedge bolts. The enlarged head on the shank defines the aforementioned anchor eyelet or hole.

Abstract: A sweetening compound is recovered from Stevia rebaudiana plant material in the form of colorless crystals having 450 times the sweetness of sucrose. Sweetened products for oral ingestion are provided by admixing the sweetening compound with a foodstuff or a pharmaceutical. The sweetening compound is recovered from the plant material by extraction with water, concentration, extraction with an alkanol, chromatography, and collection of fractions rich in the compound, preferably followed by concentration of the rich fractions and recrystallization of the product.

Abstract: A stencil sheet of the type including an ink-impervious coating of a heat-flowable composition on an ink-pervious base sheet includes two layers of the composition on the base sheet, the first layer having external surfaces made uneven by the unevenness of the underlying base sheet, and the second layer filling the lower areas on one surface of the first layer and providing an even surface on the resulting stencil sheet for intimate contact with an original and attendant advantages.

Abstract: A composition of matter having thermal color responsive characteristics and adapted for exhibiting improved color contrast includes an enantiotropic cholesteric liquid crystalline phase material, and at least two oil-soluble dyes dissolved in the material in a total dye concentration of 0.01-1% by weight of the composition, each of the dyes reflecting light of a different wave length in the range of 400 to 700 nanometers, and said dyes together absorbing light of substantially all wave lengths within said range.

Abstract: An anti-theft device for automobiles equipped with a foot brake pedal and a brake lever secured thereto, and with a gear shift lever mounted on the steering column, includes an elongated rod having a first return bend therein adjacent one end and forming a hook which is adapted to be hooked to the brake lever and retained by the foot brake pedal, and a second return bend therein adjacent the remaining end, a chain having a plurality of links and being adapted to extend between the remaining end of the rod and the gear shift lever, means including the second return bend for connecting the rod to a link adjacent to one end of the chain, and means for connecting a link adjacent the remaining end of the chain to the gear shift lever, one of the connecting means including a padlock serving to lock the device to the foot brake pedal and the gear shift lever when installed to prevent operation of either of them.

Abstract: A disposable pick-up container for animal litter includes an open-mouthed bag of flexible material serving as a receptacle for animal litter and having a cuff portion around the mouth thereof, and a pair of scoops on opposite sides of the bag, the scoops each having a blade portion fixed to the cuff portion of the bag and a handle portion extending from the blade portion, the container being adapted for manipulation to pick up animal litter by grasping the handle portions of the scoops and placing the mouth of the bag around the litter, bringing the blade portions of the scoops together under the litter, picking up the litter by the blade portions and upending the bag to drop the litter by the blade portions and upending the bag to drop the litter thereinto, inserting the blade portions into the bag and thereby also folding the cuff portion so that it lies within the bag, and bringing the handle portions together for bag-closing and carrying purposes.