. Cassier's magazine. se of excep-tionally heavy cutting being required,an 6uter support is fitted for the , two, or three tool boxes arefitted,—one or two on the arm, and one atthe side. In machines of this class theadvantage is that of open-sidedness,since the problems of quick return andmoving work remain as in the commontype. Machines in which the tool moveswhile the work remains stationary corn- planer, but in which the housings,—screw-driven,—slide on vertical waysthat flank the table, and the attendantis travelled with them on a platform, asin heavy plate, edge-planing
. Cassier's magazine. se of excep-tionally heavy cutting being required,an 6uter support is fitted for the , two, or three tool boxes arefitted,—one or two on the arm, and one atthe side. In machines of this class theadvantage is that of open-sidedness,since the problems of quick return andmoving work remain as in the commontype. Machines in which the tool moveswhile the work remains stationary corn- planer, but in which the housings,—screw-driven,—slide on vertical waysthat flank the table, and the attendantis travelled with them on a platform, asin heavy plate, edge-planing massive than these are the pitplaners, the special feature of which isthat housings and cross rail travel overthe work, bolted down below in a is a bold design, of which few ex-amples occur in England. The movingmass is large, and the broad bases andslides require very perfect fitting, withprovision for taking up wear, to ensuresteady movement. It is an example ofone among many attempts to tool mas-. FIG. 12.—ANOTHER CTJNLIFFE & CROOM DESIGN prise several sub-types, most of whichare also open-sided, though several arenot. We will discuss these first are some Continental machinesof the latter class which have a closegeneral resemblance to the common sive work while stationary. This planeris shown in Fig. 15. In these pit planers the height of thecross rail is subject to much variation,being low down or high up in differentmachines. The former is better for i44 CASSIERS MAGAZINE f Jl •* ^^^SS-ifel # - Sill L ^Bi it^-^2 *r ^ <U ?.?& i i -vr •*» nil . ^** ^?< ^^^L * FIG. 14.—THE ABOVE PLANER ARRANGED WITH ANAUXILIARY SUPPORT FOR THE ARM FIG. 13.—A SINGLE PILLAR PLANER. MADE BY MESSRS. BILLETER & KLUNZ, LTD., ASCHERS- LEBEN, GERMANY. REPRESENTED BY MESSRS. PFEIL & CO., LONDON stability, but the exigencies of workrequire the latter also. In some designsthe rail has no capacity for vertical ad-justment, in others it has, being carri
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyork, booksubjec
