IAN  T  COBB

CUT WHEELS & PINIONS FOR

A CONGREVE CLOCK

by JOHN WILDING

Wheels to be crossed out / Pinions supplied on stubs to be cut off and fitted to arbor  1/2/3 or 4 pinions on one stub  PHOTO

This clock has an extraordinary fascination for the mechanically minded. The captive ball endlessly traversing the table from one end to the other has a mesmeric effect on those watching. It used to be a popular clock to place in the window of the High Street jeweller where it would guarantee an audience. You can be sure that there will always be a gathering round the Congreve clock in the British Museum. Every year at the Model Engineer Exhibition there will be at least one of these clocks made to my design from this book. It is not a good timekeeper and must be regarded as a horological gimmick to some extent. In this workshop manual the opportunity has been taken to update information on the material suppliers, to reprint some of the illustrations which were of poor quality and to include a trouble shooting section at the end of the manual. One interesting feature where the clock differs from many commercial ones is the tilting table which in this design is fabricated and skeletonised. This makes it lighter and requires less power from the clock movement to tilt it. The clock has formed the project for many mechanical engineering apprentices and students. The illustrations show the clock constructed using the Myford ML 7 lathe.                                                                                 J Wilding

Cutters Module 0.75, 0.6

There are 80 pages, over 140 illustrations/drawings and a full description of the construction of all parts

wheels and pinions are made to order  

ITEM

     p
GREAT WHEEL 21. 50
CENTRE WHEEL 13. 50
THIRD WHEEL 13. 50
HOUR WHEELS / 2 22. 50
FUSEE RATCHET 11. 50
BARREL RATCHET 11. 00
RELEASE PINION 19 LEAF 20. 00
THIRD PINION 12 LEAF 14. 00
CENTRE PINION 10 LEAF 14. 00
FUSEE BLANK  TURNED & GROOVED                                   Photo 45. 50
BOOK 30. 00
DIAL SET (3) UNSILVERED  Photo see photo
DIAL SET (3) WAXED & SILVERED ::
Stainless Steel Ball  7/16" 2.00
MAINSPRING P.O.A
                   ALL PRICES PLUS POSTAGE & PACKING Back To J Wilding Clocks
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 Photo by kind permission of Mr J Wilding
Click on photo to more photos
Please verify prices before ordering as prices can fluctuate due to market forces   For The Balls Try

http://www.theppb.co.uk/

Material Quantity  
CZ120 Brass 2 1/8" x 12.1/2" x 12"  Frames
  1 1/16" x 13" x 10.1/2" Tilting Table
  2 1/4" x 1.1/4" x 14" Finial Bases, Imposts
      & Covers
  4 1/16" x 5/8" x 14" Table Components
  1 1/16" x 1/2" x 14" Table Components
  1 36th x 1" x 12" Release Levers
       
Blanks 1 3/16" x 3.3/4" Great Wheel
  2 3/16" x 3" Barrel Flanges
  1 3/16" x 1.1/4 Barrel Ratchet
  1 3/32" x 1.3/4" 1/2 Minute Release
  1 3/32" x 1" Fusee Ratchet
  1 1/16" x 4" Chapter Ring
  2 1/16" x 3" Centre & Third Wheels
  2 1/16" x 2.1/4" 1/2 Minute Chapter Ring
      & Hour Wheel
  1 1/16" x 1.1/4" Fusee Slip Washer
       
Brass Angle 1 3/4" x 3/4" x 1/8" x 6" lth Miscellaneous
  1 1/2" x 1/2" x 1/16" x 6"         ::
       
Brass Tube 1 2.3/4 x 1/4" x 2.3/4" lth Barrel
       
Brass Round 1 1.3/4" dia  x 2" lth Fusee
  4 1" dia x 7.1/2" lth Pillars                    *
  1 1" dia x 4" lth Feet                       *
  1 3/4" dia x 4" lth Collets ect
  2 5/8" dia x 12" lth Table Support, Pillars
      Washers, Collets
  1 3/8" dia x 6" Collets  ect
  1 5/16" dia x 6"        ::
  1 1/4" dia x 6"         ::
       
EN8 Steel 1 3/4" x 6" Arbors
  1 5/8" x 6"      ::
  1 3/8" x 12"      ::
       
Silver Steel 2 5/32" x 13"      ::
       
Stainless Balls 2 7/16" dia  
       
Mild Steel 1 4" x 4" x 1/16"  
       
Blue Pivot 2 each 0.031, 0.033,  Lantern Pinions