GB190704922A - Improvements relating to Speed Transmission Gears. - Google Patents

Abstract

4922. Teich, O. A. March 10, 1906, [date applied for under Patents Act, 1901]. Toothed gearing.-Relates to a construction of epicyclic speed-reducing gearing of the type in which a backward variable or other motion is given to an intermediate planet element. The driving - shaft 2 carries a sunpinion 1 meshing with a planet-pinion 5 fast upon a spindle 6 supported by a rotatable arm or plate 7. The pinion 5 meshes with an annulus 4 secured to the driven shaft 3. The retrograde motion is imparted to the pinion 5 by means of back gearing consisting of a pinion 10 fast on the spindle 6 gearing with a fixed sun-pinion 12 through a planetary idler 11. The wheels 11, 12 may be replaced by wheels of different sizes to vary the velocity-ratio, and to this end the spindle of the wheel 11 is mounted in a slot 20 in the plate 7. A casing 19 surrounds the gear. The Specification in the original form as published under the Act of 1901 comprises also certain modified arrangements of back gearing. In one of these, the element corresponding to the pinion 10 gears directly with a fixed toothed annulus. In another a countershaft is employed. In a third arrangement, the element corresponding to the wheel 12 may be independently driven. This subject-matter does not appear in the Complete Specification as accepted.