Abstract: A single space rotary printing press for newspapers includes a plurality of printing units arranged at different elevations, the printing units each having a plate cylinder with an annular gear at one end, a first transmission gear box and at least one second transmission gear box driven to rotate the printing units, the first transmission gear box having a power input shaft for receiving external rotary driving force and a power output shaft for transmitting external rotary driving force to one printing unit, the at least one second transmission gear box each having a power input shaft for receiving external rotary driving force, a power output shaft for transmitting external rotary driving force to one printing unit, and a transmission shaft for transmitting external rotary driving force to the power input shaft, and an adjustment mechanism coupled between the transmission shaft and the power input shaft for adjusting the position of the plate cylinder of the corresponding printing unit, and coupling means

Abstract: An anti-expansion web-transfer mechanism mounted between two printing units in a color press to transfer a printed web from one printing unit to a next printing unit, and to prevent the printed web from expanding in width, the anti-expansion web-transfer mechanism including a fixed axle and a rotary axle arranged in parallel between two brackets, a plurality of roller supports respectively mounted on the two axles in stagger to hold a respective roller, a transmission mechanism controlled to rotate the rotary axle, enabling the rollers at the roller supports at the rotary axle to be pressed on the printed web against the rollers at the roller supports at the fixed axle, and an air cylinder connected between the transmission mechanism and one roller support at the rotary axle.

Abstract: The subject matter relates to a structural improvement of computer desk, or more specifically to a type of computer desk that can be disassembled or collapsed, with sufficient utilization of storage space, with the height of its desk plate adjustable to suit its application at a regular location, in an office or a Japanese-style room.