Identifier: illustratedcatal00sell (find matches)
Title: Illustrated catalogue and general description of improved machine tools for working metal
Year: 1899 (1890s)
Authors: Sellers, William, & co. (from old catalog)
Subjects: Machine-tools Machinery
Publisher: Philadephia, Levytype company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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rbalanced by a spiral spring, so that,although massive and rigid, it can be reciprocated vertically with surprising ease.The chuck for grinding curved surfaces is inserted in the regular tool-chuck, anda frame carrying a gauge and a roller against which the former-plates work, isput in place in about half a minute. Means are provided by which a tool filed orground to any desired curved shape can be used as a guide or templet from whicha former-plate can be ground in the machine and afterwards used to exactly repro-duce the tool or a curve parallel to it. A chuck is provided for grinding the sideor base of a tool shank. Also a chuck by which a tool bent at a right angle canbe ground the same as a straight tool without changing its position in the chuck.The V shape of the wheels permits the use of a chuck for grinding delicatesplining tools. While the machine is massive and rigid, yet the facilities are such that all \Vm. Sellers & Co., Incorporated, Philadelphia, Pa. Plate No. 101.
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No. 2 UNIVERSAL TOOL-GRINDING MACHINE. For tools with shanks not over 2 b) i/i;. Grinding wheel of ordinar)^shape, 15 diameter, with axial reciprocating motion which can be instantlystopped or started. Graduated arcs by which the clearance angles can be readdirect. Complete with rotary pump and jointed pipe arrangement and the follow-ing attachments : Holders for curved face tools, one for sti-aio/if right or lefthand, one for bciit right hand, one for bent left hand, and one for circular tools.A gauge for setting curved face tools in the holders. A chuck for grinding anjbent tool on all its faces without changing its position in the chuck. Tables anddiagrams giving cutting and clearance angles of all tools. A diavnmd tool fortruing wheel, and />^rw< with twenty-eight sample tools. Coinitershaft completeand all necessary wrenches. Fast and loose pulleys, 10 diameter, 5 face, tomake 360 revolutions per minute. 126 Wm. Sellers & Co., Incorporated, Philadelphia, Pa. Universal T

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