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  • WORKSHOP TECHNIQUES for CLOCKMAK
    a saw table a T rest and cross slide and vertical slide locks all for the Sherline lathe How to make indexing plates from first principles for indexing any type lathe and without the need for another indexing plate or dividing head How a Sherline lathe can be used to configure itself for gear and pinion cutting and lantern pinion making without the need for a milling machine How to make a macro mill drill spindle from junk watchmaker s lathe headstock parts Details for making the simple accessories required for winding music box and other heavy duty mainsprings on the bench lathe Details for adapting the Myford and other bench lathes for use with 10 mm collets A tip over T rest for use on the bench lathe The cutting of a 6 diameter 200 tooth gear on a standard Sherline lathe lathe only A copy of the T rest for the Sherline lathe is currently being manufactured by Sherline and is offered as the W R Smith T rest P N 2110 This allows the freehand turning of small ornate shapes without the need for a making a form tool Hand turning is also very fast With the

    Original URL path: http://www.iantcobb.co.uk/workshop_techniques_for_clockmak.htm (2016-04-26)
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  • WORKSHOP TECHNIQUES for CLOCKMAK
    lathe a simple tool for doing lantern pinion work tools for adjusting bent pallet escapements a set of homemade pivot supports for pivot polishing are also offered A simple homemade gage for measuring the correct length of in barrel mainsprings is presented as are a number of useful tricks such as spinning true screw length management tools silver solder draggers how to make index plates from scratch adapting the Sherline lathe for wheel cutting and pinion making the use of super glue arbors a center finder for re pivoting a Sherline saw table sheet metal drills CNC indexing replacing a ratchet wheel tooth replacing train wheel teeth making lantern pinions cut pinions and factory type lantern pinions Included is information for making and using a pinion head depthing tool Also illustrated is the use of a conventional depthing tool for correcting bad depthing in a clock train Two methods for replacing broken barrel teeth are offered The use of a bull s foot file and 35 mm film for reducing a bushing to plate thickness is illustrated The usefulness of adjusting rods in clock repair is described as is the technique for re pivoting an arbor For the benefit of

    Original URL path: http://www.iantcobb.co.uk/Smiths%20Clock%20repair.htm (2016-04-26)
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  • WORKSHOP TECHNIQUES for CLOCKMAK
    shaft clamp and a sheet metal restraining arm This allows gear cutting of wheels with teeth from 2 to 999 Learn how a homemade hand crank can simplify threading with a tap or a die as typically done with bench lathes See how the same hand crank and a few accessories allow the winding of powerful fusee clock springs as well as all other clock springs on the Sherline lathe Learn a simpler way to make a Jacot tool for pivot polishing on the Sherline lathe See how to make a FERGUSON PARADOX that has endlessly puzzled people with its unexpected gear motions since the seventeen hundreds Learn how to mount the CNC indexing table on the Sherline milling machine with two simple fittings and one easy machining operation This allows gears and multi sided objects to be cut on the Sherline mill as shown in the text See how the Sherline headstock assembly can be mounted on a bench lathe for milling operatons Learn how to drive a Sherline headstock on a Sherline vertical slide with a sewing machine motor for gear cutting as well as how to make the motor reversible This avoids the problem of excessive weight

    Original URL path: http://www.iantcobb.co.uk/SHERLINE%20IN%20THE%20WORKSHOP.htm (2016-04-26)
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  • LIONEL BROWN CLOCKS
    engineer who is considering making a clock as a diversion from models It has been designed to meet the following criteria Skeleton construction with a clearly visible and eye catching escapement Use of a relatively short compound pendulum to give a stately periodic beat of 1 1 2 seconds Clean uncluttered lines A maximum height of 12 A duration of 8 days All components to be capable of manufacture on a Myford ML10 or similar lathe The escapement and compound pendulum are front mounted for maximum effect and to allow one to clearly how a gravity escapement works The gravity escapement has been inverted from its normal layout to reduce the overall height of the clock when using a compound pendulum The clock was well received when it was displayed on Crafts for Four Seasons stand at The 1997 Harrogate Show wheels and pinions are made to order ITEM p GREAT WHEEL 19 50 INTERMEDIATE WHEEL 15 50 CENTRE WHEEL 13 50 THIRD WHEEL 12 50 FOURTH WHEEL 12 50 MOTION WHEEL 1 12 50 MOTION WHEELS 2 12 50 INTERMEDIATE PINION 18 LEAF 20 00 CENTRE PINION 12 LEAF 16 00 THIRD FOURTH ESCAPE PINIONS 3 10 LEAF 22

    Original URL path: http://www.iantcobb.co.uk/l.%20brown%20gravity.htmL (2016-04-26)
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  • A PERPETUAL CALENDAR SKELETON CL
    operated remontoire The reduction of frictional losses in the train by the use of ball races on the spring barrel Hardened steel end caps for the arbors High count pinions a standard spring to give a duration of 14 or more days All components to be capable of manufacture on a Myford ML 10 lathe Cutters Module 0 6 0 8 ITEM p BOOK 26 00 MAINSPRING P O A

    Original URL path: http://www.iantcobb.co.uk/a_perpetual_calendar_skeleton_cl.htm (2016-04-26)
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  • COLIN J THORNE
    out Recoil escapement This clock fits under a standard readily available 400 day glass dome C J Thorne wheels and pinions are made to order Plans 9 50 Great Wheel 21 50 Intermediate Wheel 14 50 Centre wheel 14 50 Third wheel 14 50 Escape Wheel 17 50 Hour Wheel 14 50 Minute Reverse Minute Wheels 2 14 50 Barrel Ratchet 11 50 Intermediate Centre Pinions 2 12 Leaf 24

    Original URL path: http://www.iantcobb.co.uk/thorne%27s%20skeleton.htm (2016-04-26)
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  • COLIN J THORNE
    the going fusee This clock also fits the larger of the readily available 400 day glass domes A lot of clock not for the faint hearted C J Thorne Cutters Module PLANS 20 50 MAINSPRING X 2 P O A

    Original URL path: http://www.iantcobb.co.uk/Double%20fusee.htm (2016-04-26)
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  • COLIN J THORNE
    C J Thorne Cutters Module 0 8 0 6 wheels and pinions are made to order BACK TO C J THORNE P PLANS 11 50 GREAT WHEELS 2 42 00 1st INTERMEDIATE WHEEL 17 00 2nd INTERMEDIATE WHEEL 17 00 CENTRE WHEEL 16 00 THIRD WHEEL 16 00 ORDER FORM ESCAPE WHEEL 18 00 HOUR WHEEL 16 00 MINUTE REVERSE MINUTE WHEELS 2 15 00 1st INTERMEDIATE PINION 14 LEAF

    Original URL path: http://www.iantcobb.co.uk/month%20going.htm (2016-04-26)
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