Educational film guide ()

1949 EDITION 621.92-622 GRINDING MULTIPLE-POINT TOOLS. Castle 20min sd $32.16 621.92 tr Guide Produced by the U.S. Office of Education. Accompanying fllmstrip $1 Shows how to off-hand grind Individual teeth; how to circle grind; surface grind all tooth relief angles; how to finish surface and edges by honing; and how to inspect resharpened cutters GRINDING SINGLE-POINT TOOLS. Castle 26min sd $38.75 621.92 tr Guide Produced by the U.S. Office of Education. Accompanying fllmstrip $1 Shows how to semi-flnish and finish-grind a dull tool; rough-grind a chipped or broken tip; grind a newly brazed tool; and grind a chip breaker GRINDING THIN DISCS. Castle 15min sd $27.15 621.92 tr Guide Produced by the U.S. Office of Education. Accompanying fllmstrip $1 Shows how to true the grinding wheel; load and operate the magnetic chuck; roughgrind the disc; finish-grind the discs to precision measurements; and check them for accuracy and parallelism INFEED GRINDING A SHAFT OF TWO DIAMETERS. Castle 1945 31min sd $43.03 621.92 sh-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 How to profile grind shafts by the Infeed method; how to use cams in profiling the regulating wheel and grinding wheel; how to install the cams; how to profile the wheels; how to set up the centerless grinding machine for the Job; and now to rough-and finish-profile grind INFEED GRINDING SHOULDERED WORK. Castle 1945 23min sd $35.16 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Demonstrates the basic principle of infeed grinding; the use of an automatic ejector; how to tilt the regulating wheel for this type of grinding; the u.se of the Infeed lever; how to adjust the endstop; how to position the work for grinding; how to correct work ground out of round; and how to check work with V block, Indicator and micrometer MANUFACTURED ABRASIVES. USBurMines 1940 24min sd loan 621.92 Jh-sh-c-tr Also available in a silent version (30min) Made in cooperation with the Carborundum Co. "Shows experiment which led to discovery of carborundum; views of Niagara Falls, the source of power used in the manufacture of this abra.sive; manufacturing processes; and some of the many uses of this product in factories, shops, farm, and home." Colorado PLUNGE CUT GRINDING. CasUe 1944 15min sd $26.43 621.92 sh-c-tr-ad Guide A U.S. Office of Education production. Accompanying filmstrip $1 Mounting a bushing on a mandrel; how to dress the side of the grinding wheel; how to set a dial snap gage for the production grinding of bushings; how to rough and finishgrind bushing; and the Importance of rhythm in production grinding SHARPENING A FORM RELIEVED CUTTER. Castle 1944 ISmin sd $30.01 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Shows how to choose the correct grinding wheel, how to adjust the swivel table for grinding the angular teeth of the cutter, how to adjust for clearance angle when srinding with the periphery of the wheel, and how to check the teeth for accuracy of the anel* SHARPENING A PLAIN HELICAL CUTTER. Castle 1944 16min sd $27:88 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Shows how to mount the helical cutter on an arbor, how to arrange the four elements in the same horizontal plane, how to sharpen the secondary clearance angle, and how to check and adjust for taper in grinding the primary clearance angle SHARPENING A SHELL END MILL. Castle 1944 17min sd $28.58 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Shows how to select the correct arbor, how to mount the work head, how to adjust the work head for clearance settings, and how to set up for sharpening the outside diajneter, the corner, and the face SHARPENING A SIDE MILLING CUTTER. Castle 1944 23min sd $35.16 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Shows how to Identify the parts of a cutter, how to select and mount the correct grinding wheel, how to mount the cutter, how to set up the grinder for sharpening, how to set the correct clearance angle, and how to check for correct width of land SHARPENING AN ANGULAR CUTTER. Castle 1944 15min sd $26.43 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying filmstrip $1 Shows what constitutes the rake angle and the clearance angle of the form relieved cutter; how to mount the correct attachment; how to set up for spotting the back of the teeth; and how to grind the face of the teeth THRUFEED GRINDING A STRAIGHT PIN: PART I. Castle 1945 29min sd $41.60 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying fllmstrip $1 Shows the principle of centerless grinding; the basic elements of the centerless grinding machine; how to set up the machine for an actual Job (limited to mounting wheel, workrest, workblade, work&uides, diamonds); and how to true the grinding and regrulating wheels THRUFEED GRINDING A STRAIGHT PIN: PART II. Castle 1945 28min sd $40.89 621.92 sh-c-tr-ad Guide Produced by U.S. Office of Education. Accompanying fllmstrip $1 Shows how to balance the grinding wheel; position the work for grinding; adjust the work guides; take the trial grind; eliminate taper in the workpiece; use a crown cam to dress the grinding wheel; and check the work-pieces 622 Mining engineering FACE OF TIME. CanNFB 1943 20min sd $50. rent $2.50; also color $150, rent $5 622 sh-c-ad In this film we are shown how the first geologists, with the simplest instruments and under the most primitive conditions, pioneered in the field of charting Canada's minerals. We 455