Arizona republican., 1920-11-10

Not one but several distinctive ad- vantages, exclusive to 1t alone, place the Avery tractor in a distinct class and fit it to take leading part in the motorization of agriculture.
 The Avery, sold locally by its state distributors, the Pratt Gilbert com pany, comes in seven sizes, all built and designed on the Avery principle of wer-farming. and each fitting into it's own peculiar niche in agricultural work. The Avery company was among the first in the tractor business, manu- featuring the early type of steam pow CT implement, and also in the turning from steam to gasoline in tractor pro- duction.
 One of the leading features of the Avery tractor, which makes 1t .doubly useful for both movable and stationary power on the farm. Is the sliding | frame transmission which allows a di- rect drive, excluding all the multified gear and machinery used when the tractor is in motion. This constitutes an immense saving of power as well as of wear and tear on the machinery. By the sliding frame transmission, it is possible to disconnect the driving gear and the machinery attached to it in such a way that no power is wasted, | and no parts move except those dt- dectly concerned in transmitting sta- tionary power.
 This feature belongs exclusively to the Avery, since practically al other types of tractor have to use a lot of gears used in propelling the machine, when 1t Is being devoted to the opera ton of pumps, and other standing ma- chinery.
 Movable Cylinder Walls
 The fact that the cylinder walls or the Avery engine may be removed Iwhen they become worn or scored Is
 another important advantage of this
 tractor. that is not found generally in such motors. Like most great inven-
 tions it is most simple and easy to
 manipulate. Indeed the farmer, if he
 be mechanically inclined, can make the
 change of cylinders without outside aid
 When the scored or disabled cylinder has been removed and a new one , placed. the engine is to all intents anc purposes just as good as new. Wltf ! other types of tractor motors IL i' l found necessary to remove the engine } block with the cylinder, when change r becomes necessary.
 Speaking of simplicity, the lack O 2 complication in the construction of thu , Avery tractor throughout is one of it: l great beauties. This makes it possible
 for the farmer to do most of his worl in repairing breaks and restoring part [ in the tractor. right on the home ranch g The Pratt Gilbert company carries al
 immense line of stock in tractor part
 and repairs, and can supply the farmer
 needs at all times without necessitat
 ing a long and costly wait, while h
 sends to the factory for parts.
 Another important speciality con |, nected with the Avery tractor is tn gasifier, an exclusive Avery feature t This little attachment permits the ga h to be heated by the steam from the ex . haust pipe of the motor to the prope
 temperature, as it passes through tn r gasifier, making it possible to bur s kerosene, distillate and other lowgrad 8 fuels and to get a maximum of powe t for minimum of fuel and expenditure d Perfected Cooling System
 Special care has been given by Av cry designers to perfecting the coolin
 system of the Avery, and in this va
 has been solved one of the most diff
 cult problems of the gas engine as use J- in propelling a tractor. Much of tn
 trouble that has been experienced b