Abstract: An artistic black/white board with decorative function. The artistic black/white board has an artistic frame. Two reels are hidden in two opposite sides of the frame. At least one picture is extensibly wound on one of the reels. In use, the artistic black/white board serves as a normal black/white board for writing and memorizing things. When not used, the picture is pulled out and unwound from the reel to cover the black/white board to serve as a wall painting for achieving a decorative effect and beautifying the appearance.

Abstract: A flow regulator for a water pump, comprising a valve body, a left piston, a right piston, a connecting rod, a spring, and a conduit. The valve body is roughly shaped like a cross, having a passageway in a vertical direction and a left tube and a right tube in a horizontal direction, respectively enclosing a left chamber and a right chamber. The left and right pistons are glidingly movable inside the left and right tubes, respectively, being connected by the connecting rod. The spring is inserted between the right piston and a right cap on the right tube. The conduit is placed inside a side wall of the left tube, transmitting water pressure from the passageway to the left chamber. The control element is by water pressure pushed towards the passageway, narrowing the passageway. This is countered by an elastic force of the spring, so that controlled water flow and pressure are achieved.

Abstract: Fitting type chainless transmission and speed adjustment mechanism of bicycle which can be directly installed on an existent chain transmission bicycle to change the chain transmission bicycle into a chainless transmission bicycle without changing the bicycle frame. The front gear set is disposed at the pedals of the bicycle, including a driving gear and a driven gear engaged therewith. The axes of the driving and driven gears are positioned on different planes. The driven gear of the rear gear set is drivingly engaged with a transmission gear. The axes of the driven gear and transmission gear are positioned on different planes. The transmission gear is drivingly connected with output end of the speed adjustment mechanism. The input end of the speed adjustment mechanism is drivingly connected with the output end of the driven gear of the front gear set.

Abstract: A sheet member impression structure formed of a rod member and two sheet member impression devices is disclosed in which each sheet member impression device includes a casing slidably mounted on the rod member, an adjustment unit mounted inside the casing and partially extended out of the casing for operation by the user to adjust the position of the casing on the rod member, and a press member supported on the bottom side of a spring member inside the casing and forced by the spring member to press on a pressure board keeping a transferring sheet member smooth.

Abstract: A baby tricycle steering control arrangement is disclosed to include a base frame, a head unit and a steering control bar respectively pivoted to the front and rear sides of the base frame, a swivel member pivoted to the pivot between the front side of the base frame and the head unit and fixedly connected to the head unit, a link received in the base frame and coupled between the bottom end of the steering control bar and the swivel member for enabling the head unit to be controlled by the steering control bar, and a spring member coupled between the swivel member and the base frame and adapted to return the head unit to the middle position automatically after release of biasing force from the steering control bar.

Abstract: An oil pressure cylinder has an adjusting ring. The adjusting ring is prolonged and is formed by two parts which are buckled with one another. An elastic element is used to buckle the adjusting ring. A spring is embedded at a slot of the adjusting ring so as to tightly seal the adjusting ring. The sealing washer in the steel tube has a plane shape and has a convex ring. An outer side of the convex ring is enclosed by an elastic wearing compensating spring; a connecting portion of the selecting seat with the adjusting ring is formed as a plane for matching the plane sealing washer. The adjusting ring is formed integrally, the adjusting ring has an opening, the opening has two parallel long sides and two parallel short sides, four corners of the opening are cambered; in interior of the adjusting ring has a plurality of blocks.

Abstract: The invention is a device for measuring angle of slant surface of an optical component and a method used therein. The slant surface of the optical component faces exactly toward the slant surface of a standard GRIN Lens and the optical component is spaced from the standard GRIN Lens by a fixed distance. Laser beams are irradiated into the vertical surface of the standard GRIN Lens and then generate two oval projections on a screen by reflection off the slant surface of the standard GRIN Lens and the slant surface of the optical component, respectively. Therefore, the angle of the slant surface of the optical component can be obtained according to the specification of the standard GRIN Lens and the dimensions of the two oval projections.

Abstract: The present invention discloses an optical fiber coupling system controlling an optical fiber coupling device, and the system is characterized by a manufacturing process controlling device. With the present invention, the coupling ratio of the optical fibers to be coupled can be modulated via a window interface unit. Thus, the system provides real-time information and convenient modulation of the optical fiber coupling device simultaneously and clearly.

Abstract: A combination lock comprises a tumbler wheel assembly, a backup locking assembly comprising a keyhole, a shaft, and an inner projection having a half circular section, a pivot assembly having a dog and an engagement member, a push button secured to the pivot assembly, a U-shaped shackle pivotably fastened at the lock housing, and an L-shaped resilient member. A correct combination of tumblers and a subsequent pressing of the push button will disengage the dog from a slot at one leg of the shackle and thus exert an elastic force of the resilient member on the leg for pushing the leg out of engagement with the lock. Should either the combination be forgotten or the combination be changed by another person, a turning of the shaft about 90 degrees by inserting a key into the keyhole will turn the projection and the engaged engagement member for releasing the dog.