THREE RECENTLY PATENTED NOVELTIES Fig. 2A BALL-BEARING WORM GEAR. Internal Water-way Improvements About Pittsburg. Fig. THURSTON METAL-BEATER. Favoritism to Workmen. The Current Supplement. January Buildina Edition. Fig. 3AN ODD MECHANICAL TOY. Contents. Worm gear ball bearing 27, scientific american, 1901-01-12

---

THREE RECENTLY PATENTED NOVELTIES Fig. 2A BALL-BEARING WORM GEAR. Internal Water-way Improvements About Pittsburg. Fig. THURSTON METAL-BEATER. Favoritism to Workmen. The Current Supplement. January Buildina Edition. Fig. 3AN ODD MECHANICAL TOY. Contents. Worm gear ball bearing 27, scientific american, 1901-01-12

---

Size: 3316px × 4728px
Location:
Photo credit: © Corantos / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: .., , 1901-01-12, 27, 2a, 3an, american, analysis, ball, ball-bearing, bearing, broadsheet, buildina, contents, current, developments, discovery, edition, education, emerging, experiment, favoritism, fig, gear, health, improvements, industrial, innovation, insights, internal, inventions, inventor, january, lab, magazine, mechanical, metal-beater, mind, monthly, novelties, odd, patented, pittsburg, publication, research, revolution, sa, sciam, science, sciences, scientific, scientist, states, supplement, sustainability, tech, technology, thurston, toy, trends, united, water-, weekly, workmen, worm