-40%
Central Scientific Company - Gear Reduction System, 16:1 Ratio,circa 1900
$ 20.59
- Description
- Size Guide
Description
Unique and appealing demonstration showing three gears and two pinions combined for 16:1 ratio. At each end is a "rope" configuration for input/output adding a 4:1 ratio for a total ratio of 64:1. Steel bar supporting the mechanism has one end round and one end square. Large gears are ~ 2.75" diameter and pinions are ~.66" diameter.Antique Moeller Instrument Co. Brooklyn, N.Y. Brass Thermometer No 41176 on Wood Board
A beautiful antique instrument - vintage mounted to board
Possible break to glass at end opposite of bulb - excellent condition otherwise
Dimensions (Instrument): 11"H x 2.25"W x 2"D
Dimensions (Board): 14.5"H x 5.5"W x .75"D