Abstract: A barbecue rack includes a rack body, a swivel seat and a rotating unit. The rack body has a disc therein. The disc has a first gear section. The motor has a shaft penetrating through the disc and secured with the swivel seat. The swivel seat comprises a locating block to accommodate the rotating unit. The rotating unit has a first insertion hole at a front end for a skewer to seat thereon. The rotating unit has a second gear section around the edge of the rotating unit to be meshed with the first gear section. When the motor is activated, the rotating unit will be linked to spin on the locating block so as to roast the food evenly.

Abstract: A vehicular differential transmission device includes a case, an input shaft, a transmission ring, a differential gear set, an output shaft and a clutch. The case sleeves is disposed on the input shaft and the output shaft. The differential gear set, the transmission ring, and the clutch sleeve are disposed on the output shaft. The input shaft links the transmission ring which in turn links the output shaft, and the clutch corresponds to the transmission ring. When the clutch locks the transmission ring, the differential gear set outputs a steady speed, on the contrary, when the clutch unlocks the transmission ring, the output shaft outputs a differential speed by means of the differential gear set. The case has a cap for connection of the input shaft, or otherwise, the input shaft may be coaxial with the output shaft and fixedly connected with a chain wheel.

Abstract: A differential gear structure includes a connecting pipe disposed to a transmission shaft, a chamber in the connecting pipe containing first friction plates to accommodate a passive shaft, second friction plates secured to the passive shaft, a blocking seat to hold against the first and the second friction plates for both the transmission shaft and the passive shaft to operate, and a level to move the blocking seat to separate the first and the second friction plates for creating different speeds.

Abstract: A differential unit structure includes a transmission shaft having a connecting tube. The connecting tube comprises a chamber to accommodate first friction plates for a driven shaft to insert therein. The driven shaft has a connecting rod engaging with second friction plates. An engaging seat is to urge the first friction plates and the second friction plates to mesh with each other tightly to link the transmission shaft and the driven shaft starts to spin. When the engaging seat is pushed by an activating rod to move, the first friction plates and the second friction plates are separated to form a differential speed.

Abstract: The present invention concerns a machine for forming cardboard boxes. The principal feature is that the housing is square and consists of a supply tray, box-forming suction cup rocker arm assembly, four-joint tie bar folding assembly, rocker arm tie bar folding assembly, adjustable press plate assembly, side cover-forming plate, press setting assembly, adhesive sprayer and push plate. Cardboard boxes are formed in an automated manner and the bottom thereof is sealed automatically by means of synchronizing the movements of the components pertaining to the machine. Accordingly, the employment of the equipment pertaining to the present invention can bring about a reduction in operation costs and the floor space required.