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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7032785 | Caulking gun having angle adjustment function A caulking gun includes a gun body, a push rod, a push plate, an adjusting knob, and a piston lever. Thus, the adjusting knob is rotated to move away from the push plate to increase the incline angle of the push plate, so that the push plate is locked on the push ro... | 04/25/2006 |
| 7032786 | Caulking gun having angle adjustment function A caulking gun includes a gun body, a push rod, a push plate, an adjusting seat, a driving member, and an elastic member. Thus, the adjusting seat is movable in the gun body by rotation of the driving member to adjust the incline angle of the push plate by guidance ... | 04/25/2006 |
| 7011322 | Automatic transmission with stepless, continuously variable speed and torque ratio An automatically and smoothly continuously variable transmission, particularly for a bicycle, for transmitting input mechanical energy from a crank to the drive wheel. A ratchet, having an oscillatory, alternating motion member and a continuous rotary motion member,... | 03/14/2006 |
| 5020383 | Intermittent rotation drive apparatus utilizing air pressure Disclosed is an apparatus wherein the reciprocation of a piston which is achieved utilizing air pressure causes movement of a pawl portion provided on the piston, and this movement in turn causes intermittent rotation of a spindle. In particular, accordin... | 06/04/1991 |
| 4633723 | Chainless feed system of mining cutterloader A chainless feed system of a mining cutter-loader comprises a guiding rack mounted on a conveyer and meshing with gears rotatably mounted on the cutter-loader. The gears are operatively connected through a rotating mechanism with the hydraulic cylinders o... | 01/06/1987 |
| 4566610 | Hand-held device for dispensing a multi-component substance A device for the measured or dosed dispensing of a putty-like or paste-like multi-component substance stored in separate containers includes a housing for holding the containers with a separate piston and piston rod unit for each container mounted in the ... | 01/28/1986 |
