Thank you very much for your demonstration and explanation! The gears that drives the hands of the clocks works in the same priciple in weight driven, spring driven, Germanium transistor and quartz clocks. But in weight driven clocks we must wind the cable to raise up the weight and allow it to gradually fall when the cable gradually unwinds; in spring driven clocks we have to wind the spring; in both we must use key or crank. In Germanium transistor clocks the plates, bridges, the gears, nuts, bolts etc. on both time keeping gear train and strike train and in some clocks the quarter chiming train are in the same size and made of traditional brass or steel. The traditional pendulum or balance wheel is electro magnetically driven and battery operated. In quartz clocks the main spring, pendulum or balance wheel and lever escapement are replaced by battery powered peizo electric motor that consists of resistors that controls the flow of current and gradually passes, small tuning fork shaped quartz crystal oscillator sealed in a small cylinder container that vibrates at the frequency of 32, 768 Hz and 15 flip flops in which each flip is 2 transistors kept crossing each other, microprocessor chip, soft iron tuning fork on which solenoid coil is wound up and rotor sprocket a small pinion with magnet in it's base. The escape wheel that makes one complete turn in a second, second hand wheel that makes one complete turn in a minute, intermediate wheel that transfers motion from second hand wheel to centre wheel with cannon pinion, minute wheel that transfers motion from canon pinion to hour wheel are the same in mechanical, transistor and quartz clocks. Most of the quartz clocks do not chime nor strike. But in some quartz clocks marking every quarter hour by 1/4 th, 2/4 th, 3/4 th and 4/4 th of the sequences of melodies like Westminster, Whittington's, St.Micheal's or Schubert's Ave Maria with counting the hours on tuned set of chiming rods are electronically recorded and programmed in circuit board of sound chips connected to speaker and installed so that they electronically imitates them. In some other quartz clocks melodies of traditional English or Latin songs played on small tuned set bells followed by counting the hours on coiled wire gong in some tall case carrilon clocks are electronically recorded and programmed circuit board of sound chips connected to speaker and installed so that they electronically imitates. But they can't beat the real chimes of these types of mantel clocks, bracket clocks and grandfather clocks.
Excellent video. Believe it or not a simple workaround for the infamous wrapped wire spring is to remove it and just crimp a couple tiny lead fishing weights on the business end of the lift lever. I did this over a year ago and hasn't missed a strike since so it's something to consider if the springs causing headaches
Hey mate, great videos by the way. I just wanted to ask how the striking side interacts with the time side? I've an old partially disassembled Sessions 8 day chime and strike and there are two cam lobes on the minute arbor. One is obviously for a hammer to strike the bell but the other is naturally there to begin the process of the strike mechanism. The part I'm curious about is the count lever doesn't seem to engage with anything here beyond the strike mwchnism. There's one lever for the warning wheel, one lever for the cam wheel on the striking side and one that engages with the count wheel, but how does that even begin to happen when the hour begins anew when nothing engages with the lobe on the minute arbor? I assume there's a lever between the two sides, but what does that look like?
It sounds like your Lift Lever is ok, but you seem to be missing the J-hook. This is activated by the cams on the Cannon Arbor which raise the J-hook which in turn raises the Lift Lever. Here's a link that should help you... Spring Driven Mechanical Clocks: The Lift Lever Explained: ua-cam.com/video/Vee3wh2io3U/v-deo.html
@@ScottiesClockWorld legend! Thanks a bundle, mate. I eventually discovered the J lever was in the pile of parts. I just didn't know what I was looking for at the time. It was an off the shelf NAWCC forum where someone had an issue with the timing, and a document that pointed out the J lever position determines when the strike train goes in to warning before it's meant to strike. If I were to redesign this movement I'd add threaded adjusters in the levers... At this stage I'm working out how the striking hammer is meant to operate properly. I assume the hammer's little lever interacts with the Centre Arbor lever in some way or I could be wrong about that one.
@@classydays43 , The arm on the Hammer Lever rests on the flat side of the Maintenance Cam, which has two pins on opposite sides of its face . When the movement is striking, the Maintenance Cam is turning, and as it does, each of these pins lifts the Hammer Lever and then drops it, one after the other. This causes the Hammer Lever to move backwards and forwards, this striking the coiled gong. I will be starting a new Q&A series in about a month and this is one of the first topics i will be discussing.
@@ScottiesClockWorld awesome! I've heard one of those levers on the hammer's pinion is meant to prevent the hammer from recoil, so that Q&A would be a wonderful addition to the creative of internet knowledge.
Thank you very much for your demonstration and explanation! The gears that drives the hands of the clocks works in the same priciple in weight driven, spring driven, Germanium transistor and quartz clocks. But in weight driven clocks we must wind the cable to raise up the weight and allow it to gradually fall when the cable gradually unwinds; in spring driven clocks we have to wind the spring; in both we must use key or crank. In Germanium transistor clocks the plates, bridges, the gears, nuts, bolts etc. on both time keeping gear train and strike train and in some clocks the quarter chiming train are in the same size and made of traditional brass or steel. The traditional pendulum or balance wheel is electro magnetically driven and battery operated. In quartz clocks the main spring, pendulum or balance wheel and lever escapement are replaced by battery powered peizo electric motor that consists of resistors that controls the flow of current and gradually passes, small tuning fork shaped quartz crystal oscillator sealed in a small cylinder container that vibrates at the frequency of 32, 768 Hz and 15 flip flops in which each flip is 2 transistors kept crossing each other, microprocessor chip, soft iron tuning fork on which solenoid coil is wound up and rotor sprocket a small pinion with magnet in it's base. The escape wheel that makes one complete turn in a second, second hand wheel that makes one complete turn in a minute, intermediate wheel that transfers motion from second hand wheel to centre wheel with cannon pinion, minute wheel that transfers motion from canon pinion to hour wheel are the same in mechanical, transistor and quartz clocks. Most of the quartz clocks do not chime nor strike. But in some quartz clocks marking every quarter hour by 1/4 th, 2/4 th, 3/4 th and 4/4 th of the sequences of melodies like Westminster, Whittington's, St.Micheal's or Schubert's Ave Maria with counting the hours on tuned set of chiming rods are electronically recorded and programmed in circuit board of sound chips connected to speaker and installed so that they electronically imitates them. In some other quartz clocks melodies of traditional English or Latin songs played on small tuned set bells followed by counting the hours on coiled wire gong in some tall case carrilon clocks are electronically recorded and programmed circuit board of sound chips connected to speaker and installed so that they electronically imitates. But they can't beat the real chimes of these types of mantel clocks, bracket clocks and grandfather clocks.
Interesting information, thank you for posting.
Excellent video. Believe it or not a simple workaround for the infamous wrapped wire spring is to remove it and just crimp a couple tiny lead fishing weights on the business end of the lift lever. I did this over a year ago and hasn't missed a strike since so it's something to consider if the springs causing headaches
Excellent video. The exact movement I have been struggling with. Sessions black mantle clock from July of 1920.
Scottie, does it matter which side of the lever the warning pin rests?
Hey mate, great videos by the way. I just wanted to ask how the striking side interacts with the time side? I've an old partially disassembled Sessions 8 day chime and strike and there are two cam lobes on the minute arbor. One is obviously for a hammer to strike the bell but the other is naturally there to begin the process of the strike mechanism. The part I'm curious about is the count lever doesn't seem to engage with anything here beyond the strike mwchnism. There's one lever for the warning wheel, one lever for the cam wheel on the striking side and one that engages with the count wheel, but how does that even begin to happen when the hour begins anew when nothing engages with the lobe on the minute arbor? I assume there's a lever between the two sides, but what does that look like?
It sounds like your Lift Lever is ok, but you seem to be missing the J-hook. This is activated by the cams on the Cannon Arbor which raise the J-hook which in turn raises the Lift Lever. Here's a link that should help you...
Spring Driven Mechanical Clocks: The Lift Lever Explained:
ua-cam.com/video/Vee3wh2io3U/v-deo.html
@@ScottiesClockWorld legend! Thanks a bundle, mate. I eventually discovered the J lever was in the pile of parts. I just didn't know what I was looking for at the time. It was an off the shelf NAWCC forum where someone had an issue with the timing, and a document that pointed out the J lever position determines when the strike train goes in to warning before it's meant to strike. If I were to redesign this movement I'd add threaded adjusters in the levers...
At this stage I'm working out how the striking hammer is meant to operate properly. I assume the hammer's little lever interacts with the Centre Arbor lever in some way or I could be wrong about that one.
@@classydays43 , The arm on the Hammer Lever rests on the flat side of the Maintenance Cam, which has two pins on opposite sides of its face .
When the movement is striking, the Maintenance Cam is turning, and as it does, each of these pins lifts the Hammer Lever and then drops it, one after the other.
This causes the Hammer Lever to move backwards and forwards, this striking the coiled gong.
I will be starting a new Q&A series in about a month and this is one of the first topics i will be discussing.
@@ScottiesClockWorld awesome! I've heard one of those levers on the hammer's pinion is meant to prevent the hammer from recoil, so that Q&A would be a wonderful addition to the creative of internet knowledge.