. Marine Engineer . f Messrs. AlfredHerbert, Ltd. The spindle is rotated by belt drive takenfrom the stepped pulley shaft over the pair of pulleys sup-ported off the head, the spindle is keyed to a sleeve, in whichit slides vertically, the belt pulley being fixed to this sleeve ;there is thus no side pull on the spindle. The arbor is raised and lowered by the movement of thesliding head, the pilot wheel on the side of which providesfor quick setting, fine adjustments and downward feed beingmade by means of the hand wheel with micrometer discon the front of the head : the locking lever is seen
. Marine Engineer . f Messrs. AlfredHerbert, Ltd. The spindle is rotated by belt drive takenfrom the stepped pulley shaft over the pair of pulleys sup-ported off the head, the spindle is keyed to a sleeve, in whichit slides vertically, the belt pulley being fixed to this sleeve ;there is thus no side pull on the spindle. The arbor is raised and lowered by the movement of thesliding head, the pilot wheel on the side of which providesfor quick setting, fine adjustments and downward feed beingmade by means of the hand wheel with micrometer discon the front of the head : the locking lever is seen to the leftof this wheel. The steady bracket for heavy cutting is madeadjustable for height to suit both the rectan-gular and circular tables, and can be swung toone side when not required. The longitudinal and trans-verse movements of the plaintable are controlled by the twolarge hand wheels onthe front of the bed,while the smaller wheelabove these operatesthe rotation of thecircular table. Thesethree movements are. Patent Vertical Milling and Profiling Machine. the longitudinal traverse being operated by another leveron-jthe front of the knee ; the ranges of these feeds are inthis model 8, 18 and 25 inches respectively, with automatictrip gear. The movements of the table are also controlled l>v thehand wheels for rapid setting, micrometer discs being pros idedfor accurate adjustments. The table can be swivelled upon thegraduated base to give an angular movement for special cuts. A dividing head for gear cutting or spiral forming is shown,this is automatically operated by feed gear and changiwheels, and for dividing up circular work, such as piti hingthe teeth in gear cutting, the part is rotated upon the ci ntre also obtained by automatic feeds through the gear box seenon 1 he side of the maehine. This gearing has a separatelybelt-driven pulley, and the feeds are controlled by horizontalhand wheel, having a graduated dial upon it, the changesbeing effected by simply moving
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondon, bookyear190
