Material feed and placement mechanisms for a steel cutting machine result in a power saving and accurate clamping device. A workpiece is moved into cutting position and clamped in place by the feed mechanism. After being cut by the cutting machine, the cut piece is slowly laid down by the placement mechanism. Not only can noise and vibration be eliminated, but also the safety of workers is improved, and machine life is extended.

A transmission shaft and bit mounting arrangement includes a transmission shaft, a C-shaped clamping ring fixed to the outside wall of the shaft, a chuck and locating ring fastened together and moved axially on the shaft relative to the C-shaped clamping ring, a compression spring mounted around the shaft and stopped between the C-shaped clamping ring and the locating ring, a bit mounted in a polygonal coupling hole at one end of the shaft, a magnet mounted in the polygonal coupling hole to attr...

A substrate assembly and method of forming the substrate assembly having a very thin form factor and a large amount of manufacturing flexibility. A flexible tape has a number of device blocks. Devices, passive or active, are joined to the device blocks forming a flexible tape assembly and the flexible tape assembly is electrically tested. Substrates are formed having cavities matching the device blocks. The flexible tape assembly is then joined to the substrate such that the devices fit into the...

A detachable vehicle tire wrench includes a base block, the base block having a threaded center through hole and four radial through holes equiangularly spaced around the periphery in communication with the threaded center through hole, four socket bars respectively detachably inserted into the radial through holes of the base block, each socket bar having an outer end terminating in a socket for grasping/turning a screw bolt or nut, and a locking block threaded into the threaded center through ...

A substrate assembly and method of forming the substrate assembly having a very thin form factor and a large amount of manufacturing flexibility. A flexible tape has a number of device blocks. Devices, passive or active, are joined to the device blocks forming a flexible tape assembly and the flexible tape assembly is electrically tested. Substrates are formed having cavities matching the device blocks. The flexible tape assembly is then joined to the substrate such that the devices fit into the...

A ratchet wrench in which a lamp unit and a battery set are mounted inside the ratchet member, and a rotary cap-controlled switch assembly is coupled to one extension tube of the ratchet member and rotated forward/backwards on the extension tube to close/open the circuit of the lamp unit and the battery set.

A method of adjusting exposure error for multiple products is described. First, one Photo Feed Back System (PFBS) suited to host-product or miscellaneous product is chosen. Different standard points and compensation difference for host-product or miscellaneous product are provided. Then, the PFBS parameter is calculated as an exposure adjustment value. The standard point and compensation difference for miscellaneous product are dependent on host-product.

A riding exerciser includes two curved base frames, two parallel seat supports pivoted to the curved base frame in the middle to support a seat, a lower actuating rod having a top end pivotally connected between the curved base frames at the top and a bottom end fixed with a U-tube to hold a pair of pedals, an upper actuating rod pivoted to the lower actuating rod to hold a handle, and a link connected between the lower actuating rod and the seat supports, wherein the upper actuating rod has a s...

A damping device includes a curved channel plate having a bottom end pivotally disposed around the peripheral flange of the flywheel of a rotary gymnastic apparatus and linked to a spring-supported hook at one end of a rotary knob-controlled traction device, two friction pads bilaterally fastened inside the curved channel plate and controlled by the traction device to touch the peripheral flange of the flywheel in giving a damping force to the flywheel.

A chair mounting exercising unit includes two swinging arms having a bottom end fastened to either end of a substantially U-shaped locating rod being fixed to the back of a chair by a knob controlled lock device and a slotted side extension plate in the middle at an outer side movably hung on a screw bolt at either end of a horizontal frame on the back of the chair and a top end coupled with a pulley wheel assembly, and two elastic pull ropes respectively inserted through either pulley wheel ass...