Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Wooden-Gear-Clocks Manuals
  4. Time Clocks
  5. Crescent
  6. Manual

Wooden-Gear-Clocks Crescent Manual

Hide thumbs

Advertisement

Quick Links

Download this manual
Copyright © 2008
Jeffrey A. Schierenbeck

Advertisement

loading
Need help?

Need help?

Do you have a question about the Crescent and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for Wooden-Gear-Clocks Crescent

  • Page 1 Copyright © 2008 Jeffrey A. Schierenbeck...
  • Page 2 The Crescent clock is a wooden gear clock that is a functional timekeeper with an open frame which exposes its mechanical elements. All the moving parts are clearly visible. It is intriguing to watch the seconds and minutes tick away.

  • Page 3: Assembly Tips

    Assembly Tips 1) To remove the parts from the original board, carefully bend the parts out to break the small sliver of wood that is holding them in place. If necessary, use a knife to free any pieces that were not completely scored by the laser.
  • Page 4 Part List (1 of 3) 64-tooth great wheel 6. 8-tooth gear [3] 11. 32-tooth hour gear 2. 60-tooth middle gear 7. 10-tooth gear 12. 30-tooth minute gear 3. Escape lever 8. Minute pipe piece [3] 13. Set washer [7] 4. Crutch 9.
  • Page 5 Part List (2 of 3) 24. Crutch arm 29. Upper pillar middle pieces [4] 34. Lower pillar middle pieces [3] 25. Rear frame outer piece 30. Rear frame inner piece 35. Pendulum support plate 26. Pillar base pieces [8] 31. Pendulum bob rear piece 36.
  • Page 6 Part List (3 of 3) 42. Spacer washer [9] 43. Pendulum bob front piece 44. Weight pulley outer piece [2]. 45. Weight hook interior piece 46. Pulley wheel side [6] 47. Pendulum bob interior piece 48. Rachet Pawl [2] 49. Weight spool interior divider 50.
  • Page 7 Stain Chart The diagram below indicates which pieces to stain dark if you choose to use a color scheme with darker gears and lighter frame. Of course, you can use another color scheme, such as light gears and darker frame. However, you may still find the stain chart helpful for grouping parts together that should be the same color.
  • Page 8 How the Crescent Clock Works It is helpful to have an understanding of how the Crescent clock works. This insight will be especially beneficial if troubleshooting is necessary. The Crescent clock is driven by weight. The weight is hung from a cord that is wound around the great wheel arbor (shaft).
  • Page 9 Pulley Wheel Assembly Parts (for three identical pulley wheels) 3 - Pulley hubs (#52) 6 - Pulley wheel sides (#46) 6 - Nylon shoulder washers Assembly Procedure 1) Glue together the three pulley pieces with the smaller diameter hub sandwiched between the two larger side pieces with all three holes aligned.
  • Page 10 Lower Pillar Assembly Parts 5 - Pillar base pieces (#26 ) 3 - Lower pillar middle pieces (#34) 2 - Pillar rear pieces (#33) 2 - 2 3/4" dowels Pulley wheel (assembled previously) Assembly Procedure 1) Glue together four of the pillar base pieces (#26). Then glue together the three pillar middle pieces (#34).
  • Page 11 Upper Pillar Assembly Parts 3 - Pillar base pieces (#26 ) 4 - Upper pillar middle pieces (#29 ) 1 - Upper pillar slotted middle piece (#36) 2- Pillar rear pieces (#33) 1 - Pendulum support plate (#35) 2 - 2 3/4" dowels 1 - #4 x ½"...

  • Page 12: Frame Assembly

    Frame Assembly Parts 1 - Rear frame outer piece (#25) 1 - Rear frame inner piece (#30 ) 1 - Front frame inner piece (#15) 1 - Front frame outer piece (#19) 10 - Nylon shoulder washers Upper pillar (assembled previously) Lower pillar (assembled previously) Assembly Procedure 1) Glue together front frame pieces (#15, #19).
  • Page 13 2) Sand the frame units. 3) Glue the upper and lower pillars (assembled previously) to the interior side of the front frame. The protruding dowels engage with the two holes in the frame. Make sure the pillars are oriented as shown in the photos below.
  • Page 14 Crutch Arm Assembly Parts 1 - Crutch arm (#24 ) 1 - 3/4" dowel Assembly Procedure Glue the 3/4" dowel into the crutch arm (#24 ). Be sure the crutch arm is oriented as shown below.
  • Page 15 Pendulum Bob Assembly Parts 1 - Pendulum bob rear piece (#31) 1 - Pendulum bob front piece (#43) 1 - Pendulum bob interior piece (#47) 1 - T-nut Assembly Procedure 1) Glue the pendulum interior piece (#47) to the pendulum rear piece (#31), making sure the outer edges are lined up.
  • Page 16 Pendulum Assembly Parts 1 - Upper pendulum shaft (#37) 1 - Lower pendulum shaft (#14) 1 - Pendulum bracket (#32) 2 - ½" dowels 1 - 1/2"x 1/4-20 thumbscrew 2 - #4 x ½" screws crutch arm (assembled previously) pendulum bob (assembled previously) Assembly Procedure 1) Sand edges of the two shaft pieces.
  • Page 17 4) Sand the pendulum bracket (#32) and glue it into the upper pendulum shaft, with the screw tips pointing toward the lower portion of the pendulum. 5) Lay the pendulum shaft on top of the crutch arm (assembled previously), aligning the two predrilled pilot holes.
  • Page 18 Weight Shell Assembly Parts 1 - Weight shell front face (#40) 1 - Weight shell front piece (#38) 3 - Weight shell interior pieces (#39) 1 - Weight shell rear piece (#41) 1 - Weight shell rear face (#20) 1 - Weight shell cover plate (#21) 2 - 1 1/8"...
  • Page 19 Weight Pulley Assembly Parts 2 - Weight pulley outer piece (#44) 2 - Weight pulley hook piece (#22) 2 - Weight pulley interior side piece (#23) 1 - Weight hook interior piece (#45) 1 - 1" dowel pulley wheel (assembled previously) Assembly Procedure Glue together the two outer piece pairs.
  • Page 20 Weight Spool Assembly Parts 1 - Rachet (#9) 2 - Outer spool sides (#53) 1 - Weight spool interior divider (#49) 1 - Weight spool hub (#50) 1 - Winding spool hub (#51) cord Assembly Procedure 1) Thread the winding cord through the small hole in spool divider (#49). Pull a few feet of cord through the hole so that it does not slip back through during spool assembly.
  • Page 21 5) Hold the spool so the rachet is facing you (as pictured below). Wrap the cord protruding from the rachet side of the spool around the larger hub in a counter-clockwise direction. Continue winding until about 16" of cord remains. 6) With the rachet in the same position, wind the other length of cord 3 times around the smaller hub in a clockwise direction (nearly 7 feet of cord will remain).
  • Page 22 Installing Gears on Arbors At this point, stain can be applied to all gears, set washers, and clock hands. Do not attempt to sand the laser browning off the edges of the gear teeth (this could distort the shape of the gear teeth). In the following instructions, the assembly procedure is given for each arbor.
  • Page 23 Minute Pipe Parts 3 - Minute pipe sections (#8) 1 - 32-tooth gear (#11) 1 - Hour hand (#17) Assembly Procedure 1) Glue three minute pipe sections (#8) together. Use a piece of 1/4" dowel to clear any excess glue from the inside of the minute pipe: 2) After minute pipe glue is completely cured, use a hammer to gently tap the minute pipe into the 32–tooth gear:...
  • Page 24 Great Wheel Pawls Part 2 - Rachet pawls (#48) 1 - 64-tooth great wheel (#1) Assembly Procedure Glue the rachet pawls into the slots in the great wheel gear spoke. Make sure the pawls are oriented in the great wheel as shown below.
  • Page 25 Middle Wheel Arbor Parts 1 - 60-tooth Gear (#2) 1 - 8-tooth gear (#6) 2 - spacer washers (#42) 1 - 2 3/4" dowel Assembly Procedure Mount the 60-tooth gear and 8-tooth gear on the arbor in the positions indicated in the Gear Location Diagram.
  • Page 26 Escape Wheel Arbor Parts 1 - Escape wheel (#5) 1 - 8 tooth gear (#6) 1 - 3 5/8" arbor 2 - Spacer washers (#42) note: second hand will be installed on this arbor after clock is assembled. Assembly Procedure Mount the 8-tooth gear and the escape wheel on the arbor in the positions indicated in the Gear Locations Diagram below.
  • Page 27 Escape Lever Arbor Parts 1 - Escape lever (#3) 1 - Crutch (#4) 1 - 2 3/4" arbor 1 - Set washer (#13) 1 - Spacer washer (#42) Assembly Procedure The contact faces of the escape lever must be smooth. Lay a piece of 220 grit sandpaper on a smooth, hard surface and lightly sand these two contact faces, making sure not to alter the angle or flatness of the faces.
  • Page 28 Great Wheel Arbor Parts 1 - 64-tooth great wheel (#1) 1 - set washer (#13) 1 - 10 tooth gear (#7) 1 - 4 5/8" arbor 2 - spacer washers (#42) Weight spool (assembled previously) note: one set washer, hour gear, spacer washers, hour hand, and minute hand will be installed on this arbor after clock is assembled.
  • Page 29 Gear Locations...
  • Page 30 Minute Arbor Parts 1 - 2 1/8" arbor 1 - set washer (#13) 1 - 30-tooth gear (#12) note: an 8-tooth gear and 2 spacer washers will be installed on the arbor after it is inserted in the frame. Assembly Procedure Mount the set washer and 30-tooth gear on the arbor in locations indicated in Gear Locations diagram (8 tooth gear and spacer washers will be mounted after arbor is mounted in frame).
  • Page 31 Winding Guide Parts 2 Set Washer (#13) 1 - 2 15/16" dowel Pulley Wheel (assembled previously) Assembly Mount the set washers and pulley wheel on the arbor in the locations shown in the Gear Locations diagram. Leave enough clearance between the washers and pulley wheel so the wheel can spin freely.
  • Page 32 Assembly Parts 3 - set washer (#13) Minute hand (#16) Second hand (#18) 8-tooth gear (#6) 2 - spacer washer (#42) 2 - #6 x 1" screws All of the following units have been assembled previously: Rear frame unit Front frame unit Escape lever arbor Escape wheel arbor Mid wheel arbor...
  • Page 33 2) Insert the escape wheel arbor into the next highest bushing with the escape wheel down. Be sure that a spacer washer is located at both ends of the arbor. 3) Insert the mid wheel arbor into the next bushing, with the 8-tooth gear down. Be sure there is a spacer washer at both ends of the arbor.
  • Page 34 5) Insert the winding guide arbor, short portion of the arbor down, into the endmost 1/4" hole in the rear frame. 6) Insert the minute arbor unit through the lowest hole in the front frame unit (this hole contains a nylon shoulder washer on both sides, installed previously).
  • Page 35 8) Secure the rear frame to the pillars with one #6 x 1" screw through the hole in each end of the frame. 9) Lay the clock down, front side up. Route the short cord from the larger diameter weight spool hub over the pulley in the lower pillar.
  • Page 36 11) Slide the minute pipe (installed in 32-tooth gear) onto the great wheel arbor (it should fit loosely on the arbor). The 32-tooth gear mates with the 8-tooth gear. Push a set washer onto the arbor. Maintain a small amount of clearance between the set washer and the minute pipe so that the 32- tooth gear can rotate freely on the arbor.

  • Page 37: Mounting Instructions

    Mounting Instructions 1) Determine the location to hang your clock. Be sure to consider the following: a) The clock must be mounted securely to the wall. Locate a stud within the wall for the most solid mounting possible. The stud needs to be behind the 1/4" hole in the rear frame (near the winding guide).
  • Page 38 6) The clock must be positioned so the escapement is in balance. If necessary, rotate the clock on the wall until the escape lever appears to be evenly balanced over the escape wheel (note the spacing between the escape lever faces and the escape wheel teeth in the photo below. 7) Refer to the circled portion of the last picture on the previous page.
  • Page 39 12) Glue the outer rewind pull pieces (#28) to either side of the rewind pull center piece (#27). Apply finish to the rewind pull. 13) Make sure the weight cord (which comes off the larger hub of the weight spool) follows over the pulley wheel in the lower pillar, then down and back up around the pulley wheel in the weight hook.
  • Page 40 13) Hang the weight shell from the weight hook by tipping the hook to the side threading the hook onto the dowel in the top of the weight shell. 14) At this point, some adjustments will likely be needed to get the clock running. For now, give the pendulum a slight push to the side and release to see if the clock will start running.
  • Page 41 Adjusting and Regulating After the clock is mounted on the wall, it will likely need some adjustment in order to get it running properly. Follow the steps below for initial adjustment of the clock. If you still experience difficulty in getting the clock to operate, see the Troubleshooting section of these instructions. 1) Verify proper play in arbors.
  • Page 42 5) Regulating the clock The pendulum keeps the clock running at a constant pace. The position of the bob on the shaft determines how fast the clock runs. If the clock runs slow, move the pendulum bob higher. If the clock runs fast, move the pendulum bob lower. As you adjust the bob, make sure you keep the bob oriented vertically so the clock’s beat is not affected.

  • Page 43: Troubleshooting

    Troubleshooting If, after following the Regulating and Adjusting instructions, the clock fails to operate properly, refer to the suggestions below. Gear Train Will Not Advance If the gear train will not advance when weight is applied to weight cord, check the following possible problem sources.
  • Page 44 Escapement out of beat If the escape lever has stopped the clock by not releasing a tooth of the escape wheel, try to restart the clock by restarting the pendulum in motion. If it continues to run for a while and eventually stops on the same side of the escape lever as before, then the clock is likely out of beat.
  • Page 45 Telephone: 715-955-4104 Comments? We’d love to hear from you about your experience with the Crescent clock. Please drop us a note if you want to share any thoughts about the Crescent kit or if you have any suggestions for improvements that can be made!