Abstract: A spreader (100) for spreading material, which in one embodiment comprises an upper bracket (120), a shaft (140), a return spring (160), a lower bracket (180), first and second sets of chain links (200a and 200b), and a spreader plate (220). The upper and lower brackets (120 and 180) are preferably aligned in the same vertical plane. The first and second chain links (200a and 200b) are located on opposite sides of the spreader (100) and on either side of the shaft (140). Upon rotation of the spreader (100) the first and second sets of chain links (200a and 200b) experience a centrifugal force sufficient to cause the spreader plate (220) to move down the shaft (140) and upon ceasing rotation the spreader plate (220) returns to a default position proximate to the top of the shaft (140).

Abstract: A spreader (100) for spreading material, which in one embodiment comprises an upper bracket (120), a shaft (140), a return spring (160), a lower bracket (180), first and second sets of chain links (200a and 200b), and a spreader plate (220). The upper and lower brackets (120 and 180) are preferably aligned in the same vertical plane. The first and second chain links (200a and 200b) are located on opposite sides of the spreader (100) and on either side of the shaft (140). Upon rotation of the spreader (100) the first and second sets of chain links (200a and 200b) experience a centrifugal force sufficient to cause the spreader plate (220) to move down the shaft (140) and upon ceasing rotation the spreader plate (220) returns to a default position proximate to the top of the shaft (140).

Abstract: A miniaturized battery tester that fits comfortably inside a shirt pocket. In one non-limiting embodiment, the invention comprises: first and second battery-test probes, wherein the first battery-test probe is a retractable battery-test probe; a finger grip member for holding the first battery-test probe; a circuit board, wherein the circuit board includes a battery-test circuit, the battery-test circuit includes a plurality of LEDs for displaying voltage; and a housing. The battery-testing circuit is in operable communication with the first and second battery-test probes. The housing having front and rear surfaces with a voltage display integrated into the front surface, the voltage display comprising the plurality of LEDs. The circuit board is less than about 3 cm in width and less than about 8 cm in length. The miniaturized battery tester is between about 1 oz and about 3 ozs in weight.