Abstract: A golf trolley has a wheel device, a wheel support frame, and a golf trolley wheel connection assembly disposed between the wheel device and the wheel support frame. The golf trolley wheel connection assembly has a fixed seat, a pressing block, a spring, and a blocking seat. The fixed seat has a sleeve, a shaft hole, and a through hole. The pressing block has a head, a bevel, and two legs. Each leg has a blocking end. The blocking seat has two arms and a through aperture. The pressing block is inserted in the sleeve. The spring is disposed between the legs. A rivet passes through the through hole and the through aperture.

Abstract: A cargo positioning device includes a base including two side walls having aligned first notches and aligned second notches. A pivotal member includes two side walls and a handle for manual operation. The side walls of the pivotal member includes aligned cams, aligned slots, and aligned restrainers. A latch plate has two lateral sides slidably guided in the slots of the pivotal member, respectively. Each lateral side has a catch. An engaging section is formed between the lateral sides of the latch plate. A spindle is rotatably extended through the side walls of the base. The spindle is connected with the cams on the pivotal member to rotate therewith. A cargo strap has an end securely attached to the spindle and is releasably wound around the spindle. Two ratchet wheels are mounted on the spindle to rotate therewith. A braking member is pivotally mounted to the base and includes two side walls each having a braking section for releasably engaging with an associated ratchet wheel.

Abstract: A manual air pump includes a cylinder having a first chamber and a head provided to the second end of the cylinder. The head includes an outlet passage communicated with the first chamber for supplying air to an object to be inflated. A first piston rod has a first end with a first piston slidably received in the first chamber. The first piston separates the first chamber into a first chamber section adjacent to the head and a second chamber section distal to the head. The first piston rod defines a second chamber therein. A second piston rod has a first end with a second piston slidably received in the second chamber. The second piston separates the second chamber into a third chamber section adjacent to the first piston and a fourth chamber section distal to the first piston. A handle is secured to the second end of the second piston rod to move therewith.

Abstract: The upper and lower sections (12, 14) of a splint (10) are pivotable about a pivot axis (17) by a pair of pivot assemblies (16). Each pivot assembly (16) includes a housing (18) having a cylindrical side wall (20) and a spacer (30) having a cam track (34). The housing (18) is closed by a closure plate (36) which pivotably mounts an arcuate brake shoe (46) and which mounts a cam (60). Relative rotation of the housing (18) and closure plate (36) causes the cam (60) to follow on the cam track (34) for pivoting the brake shoe (46) to engage the side wall (20) with variable braking force. In preferred forms, a compression block (80) having an aperture (82) formed therein is positioned between the brake shoe axis and the end of the brake shoe (46) to provide a visual indication of the resistance force. In preferred forms, a V-shaped projection (90) is formed on the brake shoe (46) for slideable receipt in a V-shaped groove (84) formed in the side wall (20).

Abstract: An adjustable wrench includes a handle, a head connected to the handle and including a fixed jaw formed thereon and a movable jaw mounted thereon, an adjusting screw rotatably mounted in a web area between the handle and the head for moving the movable jaw relative to the fixed jaw, and a clearance retaining device including an actuating member, a braking wheel, and a retaining member. The actuating member includes an end connected to an axle to which the adjusting screw is mounted. The braking wheel is normally in a free position not engaged with the adjusting screw when the actuating member is in a first position. When the actuating member is moved to a second position for fine adjustment, the braking wheel is moved and rotated to cause the adjusting screw to rotate through a predetermined angle such that the movable jaw is slightly moved away from the fixed jaw for a pre-determined distance. The braking wheel is retained between the adjusting screw and the retaining member after such fine adjustment.

Abstract: A method and device are adapted to perform digital frequency modulation. First, an input frequency modulation signal is converted into a digital signal via an A/D (Analog/Digit) adapter, then a varied carrier frequency parameter "a" for each different system is added to the digital signal by an adder; next, the digital signal is multiplied by a various frequency variation parameter "b" assigned to each different system accordingly, and is further multiplied by another number 2.sup.-U, U=10 for SVHS system and U=11 for VHS system, by a multiplier; afterwards, the digital signal is processed by a digital integrator; then corresponding amplitudes in mapping with all angles .theta. and .theta.' within 360 degrees are obtained by sin.theta. ROM and Cos.theta.' ROM, wherein Z.sup.-1 is a flip-flop, the parameters "a", "b" are variable corresponding to specifications of PAL, NTSC, VHS, SVHS systems and the interlace scanning so as to make the design applicable to various systems.

Abstract: A machine for fusing plastic plates includes a frame and a movable table mounted to the front end of the frame and movable along a longitudinal direction of the frame. Two spaced screw driving devices are secured to the underside of the movable table. Two screw rods are provided and each has a first end fixed to the frame and a second threaded end coupled to an associated screw driving device. The screw driving devices are driven to urge the movable table to move along the longitudinal direction of the frame. A rear compressing device is mounted behind the movable table for clamping a first plastic plate. A front compressing plate that is movable in a vertical direction is provided so as to cooperate with the movable table for clamping a second plastic plate. A fusion blade is provided for fusing a front end face of the second plastic plate with a rear end face of the first plastic plate. The front compressing plate further includes a fixed seat mounted thereon.

Abstract: A tool display box includes a main body having a number of spaced resilient retaining plates projecting outward therefrom. A holding space is defined between each two adjacent resilient retaining plates to hold a tool by two mutually facing walls of the two adjacent resilient retaining plates. Each resilient holding plate includes a distal end having a notch defined therein. A retaining member is secured to each resilient holding plate and includes a passage aligned with the notch. A locking member is extended through the notches of the resilient holding plates and the passages of the retaining members for preventing removal of the tool in the holding space.

Abstract: A pump includes a main body, an inner tube mounted in the main body, and a hollow piston slidably mounted in the main body and partially receiving the inner tube. A piston is mounted in the main body and slidable along the inner tube. Two O-rings are mounted in two annular grooves in an outer periphery of the piston. A plug is secured to a lower end of the inner tube and includes two O-rings in two annular groove in an outer periphery thereof. A handle is attached to the piston rod for manual operation. The annular grooves of the piston and the plug include notches arranged in a manner to allow air to be outputted during each stroke of the piston rod.

Abstract: A fan assembly (10) includes first and second housing sections (70, 72) which, when mated by a first set of fasteners, define a plurality of circumferentially spaced openings (162) that lead to an internal housing chamber (82). The fan assembly (10) also includes a plurality of blade units (140), each of which includes an integral support stem (142) having a journal portion (148) rotatably mounted within a respective one of the openings (162), an enlarged flange portion (144) and a radial post portion (138) rotatably supported by a hub member (106) within the internal chamber (82). Each blade unit (140) preferably has a thrust bearing (156), bushing sleeve (158) and fan blade (152) integrated with the support stem (142), with the fan blade (152) being preferably molded to the support stem (142) following positioning of the thrust bearing (156) and bushing sleeve (158) to form an integral component.

Abstract: A ratcheting tool includes a handle having a first drive end and a second end. An illumination device includes a base securely attached to the second end of the handle and a cover removably attached to the base. The base and the cover together define a compartment for receiving a lamp that is adapted to provide direct illumination to a fastener to be tightened/loosened by the ratcheting tool. The illumination device further includes a battery unit for supplying electricity to the lamp.

Abstract: A nut holding device is mounted in a ratcheting tool of the type including a compartment defined by a polygonal inner periphery. The nut holding device includes a body mounted in the compartment, a number of elastic plates formed on an upper side of the body for holding a nut to be loosened, and a number of positioning members formed on the body to position the body in the compartment. A number of posts are formed on an underside of the body for supporting the body in the compartment of the ratcheting tool in an elevated manner such that the nut held between the elastic plates is adjacent to an open top face of the compartment of the ratcheting tool.

Abstract: An apparatus for continuously producing jingling bells includes an upper mold plate and a lower mold plate. The upper mold plate includes a number of punch pins for punching a material web into jingling bells. A cutter is provided on the upper mold plate to cut an iron wire to thereby form a jingling member. The jingling member falls into a flower-like semi-product before closing the flower-like semi product. The lower mold plate includes a rotating wheel rotatably mounted thereto. The rotating wheel includes a number of closing holes for receiving the flower-like semi-product to be closed. An ejection pin provided on the upper mold plate ejects the jingling bell after formation.

Abstract: A system (10) for performing semiconductor reliability tests is disclosed including an oven (36) having open axial ends for slideably receiving a board (12). The board (12) includes an oven region (16) which is removably received in the oven (36) and which is located intermediate connection and exterior regions (14, 18) located axially outside of the oven (36). A temperature sensor (30) is positioned in the oven region (16) and its calibration device (32) is located in the exterior region (18). Contacts (34) on the axial free edge of the connection region (14) are slideably received in an electrical connector (72). The board (12) is formed of low heat transfer material so that the connection and exterior regions (14, 18) and the electrical connector (72) is not heated by the oven (36) and includes a handle (22) on the axial free edge of the exterior region (18).

Abstract: A system (10) for processing pliable, sealed bags (16) includes an inlet section (176) for transferring the bags (16) onto a lower conveyor (152) with the lower end being downstream of the bag upper end and allowing product not contained by the bags (16) to fall through the inlet section (176). The bags (16) on the lower conveyor (152) pass beneath an overhead conveyor (194), with product being dispersed inside of the bag (16) as the result of the rotation of a conditioning roller (168) engaging and flexing the belting (158) of the lower conveyor (152). The endless carrier of the overhead conveyor (194) is deflected by first and second support plates (216, 220) slideably received in flexible guides (212). The first support plates (216) places pressure on the bags (16) to force air out of improperly sealed bags (16) while the movement of the second support plates (220) is detected to determine whether the bags (16) are within a tolerable thickness.

Abstract: A backrest adjusting device is disposed in a backrest pad. The backrest adjusting device has a main body, a screw rod, a block, an adjustment button, a pin, a tube, and a flexible plate. The main body has a hollow interior, a round aperture, a circular aperture, a through hole, and a sleeve. The screw rod has a threaded hole, an annular recess, and a distal portion. The block has a groove and a threaded portion. The adjustment button and the screw rod are fastened together. The tube is connected to the sleeve. The screw rod and the block are inserted in the hollow interior. The distal portion of the screw rod is inserted in the round aperture. A plug is inserted in the groove. The flexible plate has an extension pipe and an oblong hole. A wire is connected to the plug and the flexible plate.