Waltham Crescent Street Model 1870: Fogg's Patent Pinion - Threaded Center Wheel Arbor The safety pinion patented by Charles W. Fogg in 1865 was a critical advancement in American horology,.
Waltham Crescent Street Model 1870: Fogg's Patent Pinion - February 14, 1865 On February 14, 1865, Charles W. Fogg received a patent for his “Safety Pinion.” While not the first.
Waltham Crescent Street Model 1870: Pallet Fork and Escape Wheel Poised Pallet Fork and Escape Wheel from Waltham’s Model 1870 Crescent Street, Serial Number 690511. These are the parts responsible.
Waltham Crescent Street Model 1870: Deconstructed Parts A look inside Waltham’s Model 1870 Crescent Street, Serial Number 690511. Notice how each plate is marked with matching numbers to ensure proper.
Waltham Crescent Street Model 1870: Square Impulse Jewel Pallet Fork Charles Vander Woerd’s innovative square impulse jewel was fitted on every Model 1870 Crescent Street produced at the Waltham factory..
Waltham Crescent Street Model 1870: Square Impulse Jewel As evident in previous posts, Waltham’s Model 1870 Crescent Street is full of innovative advancements from the mind of Charles Vander Woerd..
