The Fortuna Power Hack-saw Machine.
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The Fortuna Machine Co., Ltd.' Leicester, the maker of the well-known patent Fortuna power hacksaw machine, is putting on the market a new type of hack-saw, which embodies several new and interesting features. A variety of different kinds of cuts of material up to 6 ins. by 6 ins, is made by means of simple, but ingeniously designed devices, so that the machine can be worked by unskilled labour.
• The new " Fortuna" power hack-saw machine fills a long-felt want wherever material of any 'shapeor form is to be out, as it is possible to saw quickly and accurately to any angle required. The vice used in the machine is perfectly guided by means ef square slides in the machine bed of the saw. The spindle with right and left-hand threads always brings the work automatically between the two jaws
central to the saw's reciprocation. The gripping surface of the vice jaws is exceptionally wide, and reaches quite close to the saw blade, so that no spring or chatter takes place while the material is being cut. The vice jaws can easily be swivelled at any desired angle between 90 and 45 degrees, and can be set to an exact graduation scale which is engraved on the front, jaw. A special arrangement is made for sliding the whole vice when working angular cuts, in order to bring the work central with the cutting stroke, thus allowing the full length of the saw-blade to be used.
For cutting short pieces it is often necessary to pack one side of the vice with material of equal thickness, which is very troublesome, but in the Fortuna a special spacer does away with the pack ing piece. Pieces down to in. in length can be safely and accurately cut in a short space of time. The driving shaft rotates in the cylindrical extension of the swivelling bracket independently of the bearing of this bracket. Exceptionally long and wide adjustable V-slide bearings guide the saw frame, and these will not be affected through wear on the running shaft. Our illustration shows the Fortuna power hacksaw machine for belt drive, but we understand that it can be supplied as a self-contained unit, fitted with an electric motor, and can be easily transported from place to place. An ordinary plug connected to any source of electric supply is all that is needed to start the machine. A starting lever and a two-jaw clutch operate the machine, and, as soon as the cut is finished, the saw stops automatically. All working parts are exceptionally strong, interchangeable, and of first-class workmanship, so that the hack-saw is, therefore, a really modern and reliable machine tool suitable for machine shops and general engineering works