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-Elwell-Parker Gives You Exclusive Safety Features a he protect the operator, other workmen, the truck, the pay load and adjacent equipment, Elwell- Parker provides many exclusive safety features by a self-operating interlocking power control. With an Elwell-Parker at rest, no motion can be given to the truck unless the operator stands on the pedals with all starting and control levers in an “off” position. Power must always be applied through first, second and third safety speeds. The _truck cannot be started without pass- ing through first speed position. When the operator steps off the truck, all controls return at once to “off” position and brakes are applied. Another equally important exclu- sive Elwell-Parker safety feature is the separate operation of the brake from the main switch. By this ar- rangement, the power pedal, when depressed, applies current. Then, as the main drum is moved to speed position, the brake is gradually re- leased and the truck picks up speed. On ramps, this system affords maxi- ‘Mmum safety, for an Elwell-Parker can be stopped and started at any pomt—it is not necessary to release [ong yt ioe & ® brake to apply power. For descend- ing steep ramps, a dynamic brake controller can be provided. All motors in Elwell-Parkers are Elwell-Parker built—heavy duty types to meet extraordinary operat- ing conditions—safety again in the assurance of the ability of the motors to take all the power the battery will deliver. There are no fuses in the electric circuits to blow, when an abundance of power is required. Every part of the truck is built to withstand the hardest usage. Many parts are alloy steel of chrome and vanadium—most parts are drop-forged and heat treated to give greater strength. For example, the drive shaft is so strong that it can be twisted in excess of | 9° before it will refuse | return to its initial position and must be twisted to 24° before it will fracture. Strength of parts is another assurance of safety. Elwell-Parkers also protect your floors, because they are equipped with the largest diameter tires used on any electric industrial trucks. A quarter of a century of accumu- lated experiencein meeting handling problemsis available to youthrough the nearest Elwell-Parker Field Engineer. He is ready to help you develop a system for handling your materials in the most economical manner. Write The Elwell- Parker Electric Com- pany, 4200 St. Clair Ave., Cleveland, Ohio, for details. The Elwell-Parker travel controller. Heavy duty type with extra large capacity contacts, self-returning and interlocking. Provides three speeds in either direction. ELWELL-PARKER DESIGNERS AND BUILDERS OF ELECTRIC INDUSTRIAL TRUCKS, TRACTORS AND CRANES FOR OVER A QUARTER CENTURY MARINE REvIEw—September, 1931 51