points of the teeth coinciding, as found in the most common practice, these teeth are staggered so that all the pearly whites on one side of a good wheel are reverse the spaces between the teeth belonging IC) the spouse of the wheel. It is found that these gear wheels arc practically noiseless due to the absence of again lash. The clutches that control the locking of the wheels giving different gear ratios are easily adjusted to have up put on, without dismantling the gear-box.
they run in bushes of phosphor-bronze, and ball-bearings are interposed between the ends of the worm and the bushes. The illustration of the entire back axle displays the design which is made for commercial cars, and the differ ential gearing, which is of the bevel pinion type, is included within the worm steering wheel.
The Power Plant Company also causes a speciality of a gear-box, the wheels where are always in mesh, and are locked by way of friction clutches. The gear wheels are of the double helical type, and the reducing of this forms the subject of a split patent. Instead of the central
The manufacturers declare that, by this particular system, only to %. of the energy is dropped in friction. The most common practice is to slice the worms with a single thread, but, for reductions of speed between your worm and steering wheel of less than 8 to 1 1, multiple threads are used. The complete unit is supplied in a dirt and oil-retaining circumstance, which has an inspection opening at its top part. In the standard style the worm is placed beneath the steering wheel, where it revolves in a bath of essential oil. The worm shafts are manufactured from mild steel, and so are afterwards hardened and ground true;
The ” Globoid ” Worm Gear.
The gear can be adapted to a number of purposes, such as driving equipment tools, hoisting gear, or in practically any case where a silent reduction of initial velocity is desirable. The makers include turned their focus on the requirements of the motorbus and lorry builder, and are now prepared to supply finished hack axles for just about any type of automobile which is driven by a cardan shaft. The worm steering wheel in this particular system has, instead of the usual cut tooth, revolving rollers which are continued hardened, and ground, steel pins fixed into the circumference of the warm wheel. The rollers, as could be observed in the illustration, happen to be of conical form, and the worm is minimize to match these accurately. The resources for different parts are selected in such a way that the metal used in the producing of the rollers is definitely softer than either the pins, which they revolve, or the worm. As a result, if any put on should happen after long work with, it is an easy subject to replace the donned rollers. This feature is an important one on the rating of economy, because instead of the entire worm and wheel needing to be replaced at a heavy cost, only the tiny parts have to be renewed.
Our globoid worm is the freshest as well as most innovative on the market.