The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. Weight of the balance is equally distributed around its axis to ensure uniform time in different positions. The weight of each balance screw is accurately determined. Each hair spring is tested for strength and assorted accordingly. A collet is attached to the hair spring. The balance is weighed to determine strength of hairspring required. A large model demonstrates the working of the escape wheel.
The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. Making of enamel dials for the watch. Copper dial smeared with powdered Enamel are put into an oven. Markings on the dials are stamped. The dials are punched. Final touch is given to the dials.
The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. The Assembling Department. Men and women at work. Workers assemble watch parts. Dial is fitted on the watch. Hour, minute and second hands are fitted. Timing Adjusting Department performs initial tests on the watches. Watches undergo temperature test in refrigerated and electrically heated cabinets for 24 hours. Hand shows a high quality pocket watch.
The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. Workers work in the Material Department. A display case in the background contains thousands of watch- parts made since 1870. Men work in the Printing Department of the company.
The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. View of the Astronomical Observatory. An old man operates 'Transit' device used to obtain accurate time by observing the passage of stars across the meridian. A 'Chronograph' machine is shown where the time obtained from the 'Transit' is compared with a sidereal clock. Telescope is used for general astronomical observation.
The intricate processes in the manufacture of watch parts at the Illinois Watch Company in Springfield, Illinois. View of the Wireless Station that broadcasts the correct time and weather reports daily. For sending of time the wireless key is automatically operated by the master clock. Man wearing a headset operates a wireless device in the wireless station.
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