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Features of the Motor Mower Exhibits.
Page 92
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FOR SEVERAL years past, in reporting the Royal Show, we have deemed it advisable to deal at some length with the various types of motor mower exhibited,
believing, as we do, that a wide and increasing market exists for the use of these handy little appliances. Both municipal authorities and private buyers have of late evinced a keen and growing intereet in the power-propelled mower, and it is not surprising, therefore, to find that such machines are now selling in large numbers. At this year's Royal Show there are fewer individual makes of mower on exhibition, but for all that the display is representative, and those machines on view clearly indicate the advances made in mower design and construction.
The actual exhibitors of motor mowers comprise the AutoMower Engineering Co., Ltd. ; Dennis Bros., Ltd.; Thomas Greeq and Son, Ltd.; J.P. Super Lawnmowers, Ltd., and Rans&es, Sims and Jefferies, Ltd.
The firk-naroed company has a full range of its mowers set out on Stand 242. There are machines to cut to widths of 15 ins., 18 ins., 24 ins. and 30 ins., and in each of them several improvements have recently been incorporated. The main rollers of all but the smallest model now have closed ends in order to prevent grass, leaves, etc., from entering the rollers. Certain modifications in the design of the 18-in. model bring it into line with the 24-in. and 30-in, sizes, these including a separate clutch for the cutter cylinder as well as a three-piece roller with differential gear. In the 15-in, model the cutter cylinder now travels at a. higher speed in relation to the speed of the in.ower.
The smallest appliance has a two-strote power unit, but in the other sizes a four-stroke engine is employed. In each type a plate-type clutch is used, in certain cases, independent clutches being used for the main roller and the cutting cylinder. A roller seat is available for use with the three largest models.
If only for the reason that Dennis Erros., Ltd., can claim an eminent position in the commercial vehicle industry, its motor mowers on Stand 178 should be inspected. The two sizes made by the company--24 ins. and 30 ills.—are both represented and a trailer seat, which can be used with either is shown hitched to one model. The main features of one type are repeated in the other. The power unit is a 4 hp. four-stroke, and a glance at the chief units quickly reveals their ready accessibility.
The driving roller is composed of three sections, which are inter-connected by differential gearing. A feature of the cutting blades should be noted, for instead of being riveted to the cylinder, as is common practice in mower construction, the blades are attached by bolts and nuts, thus making for easy replacement in the event of damage to a blade. Dennis mowers have two clutches of the Ferodo-lined cone pattern.
Thomas Green and Son, Ltd., has specimens of its mowers for cutting to widths of 16 ins., 20 ins., 24 ins. and 30 ins., on view. The smallest models have a two-stroke, air-cooled engine, and the 24-in, mower a 4 h.p. four-stroke, air-cooled unit, whilst the 30-in, appliance is available both with altcooled or water-cooled engines, the latter being a two-cylinder unit. • Listed as a new implement is the Electra 16-in. mower to be found On Stand No. 220, which is occupied by Ransomes, Sims and Jefferies, Ltd. This is a particularly interesting little machine for, so far as we are aware, it is the only one of its kind on the market. A specially constructed electric motor can be fitted to suit either alternating or direct current supply. A flexible cable is uSed for carrying the current to the motor, the arm which carries the cable being so arranged that it can be carried at either side of the machine, thus preventing it from fouling the mechanism whilst cutting. The main clutch consists of a band outside the reducing gear, that for the cutting cylinder being of the cone variety. The motor is direct coupled to the gearbox, and has enclosed roller chains to cutting cylinder and laud roll.
The petrol-propelled mowers on the company's stand include those designed to cut to widths of 16 ins.. 20 ins., 24 ins. and 30 ins. In the smallest, a 14 h.p. Villiers twostroke engine is use ; but in the others •a Blackburne power unit is incorporated. Several new features are discernible in the Ransomes mowers. For instance, steel plate is now used for the side members of the frames instead of malleable cast iron, and ball and roller bearings have. displaced the split gun-metal bushes.
The J.P. Super lawn-mower will be found on Stand No. 321. It is built for cutting to widths of 24 ins., and has several noteworthy features, these including an engine with a water-cooled head and a flywheel air impeller. The components are very accessible and it is noteworthy that the engine can readily be removed by slackening two nuts and unscrewing a union, after which the mower is usable by hand. Those visitors to the Royal Show who are particularly interested in the use of motor mowers, and who require chief details of the full range of the various models on the British market, would do well to secure a copy of issue dated May 24th last, wherein an article containing this information was published.