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- Remaining Drawings from U. S. Patent
Remaining Drawings from U. S. Patent 186838, showing the dial gearing used in the Auburndale rotary. - Part of the Drawings from U. S. Patent 186838
showing the winding and setting mechanism very nearly as it was applied in the Auburndale rotary. - Drawing from U. S. Patent
Drawing from U. S. Patent 165831, showing Hopkins’ first design improvement, an arbor for the barrel and train to turn on and the balance displaced from center. - Patent Drawing of the Hopkins Watch
The mainspring barrel E, of a very large diameter in proportion to the diameter of the watch, occupies nearly the full diameter of the movement. The spring itself, narrower and much longer than usual, is made in the patent model by riveting two ordinary springs together end to end. Over this barrel and attached to the stationary frame of the watch is placed a large thin ring A, cut on its inner diameter with 120 teeth. Near its edge the barrel E carries a stud g on which runs a pinion of 10 in mesh with the ring gear A. On this pinion is a wheel of 80 driving a pinion of 6 on the escape-wheel arbor. The 15-tooth escape wheel locks on a spring detent and gives impulse to the balance in one direction only, being a conventional chronometer escapement. The intermediate wheel and pinion, balance wheel, and balance cock have been adapted from a Swiss bar movement of the time. - Breguet’S Tourbillon
At C is shown the carriage which revolves with pinion B carrying the escapement and balance around the stationary wheel G. (After G. A. Baillie, Watches, their history, decoration, and mechanism, London, Methuen, n.d.) - Space Shuttle - port elevation
- Space Shuttle - isometric
- Space Shuttle - forward and Adt elevations
- Sacramento Electric, Gas and Railway Co., Car 2
- Space Shuttle - top plan
- Sacramento Northern Car 64 on C Street
- Sacramento City Lines Car 90
- P.G. and E Car at Oak Park
- Car 42 at N St. Carbarn
- Car 14 at the S.P. Depot
- P.G. and E Carbarns at 28t hand N, 1914
- Sacramento City Lines Cars at S.P. Depot
- Sacramento Electric, Gas and Railway co. on the J Line
- Sacramento City Lines Car on 10th Street near M St., 1946
- Folsom Power House
- P.G. and E. Car 37, A wooden type, on the 3 line, 1941
- Central Calif. Traction Co. Car 103 at Colonial Heights
- Sacramento Trolley System Map
- Central Calif. Traction Co. Car 105 on Stockton Blvd
- Bicycle sytem applied to N.Y. Elevated railway
- Screenshot (35750)
- Screenshot (35767)
- Elevated Railroad Station
- Combiined Elevated and Surface Structure
- Cross Section of Bicycle Structure and Bicycle Electric Car
- Elevated Double Track Georgia Pine Structure
- Bicycle Railway Switch
- Bicycle Flat Car
- Bicycle Locomotive No. 1
- Sectional View of Bicycle Motor Car
- Single Bicycle Elevated Structure
- Side view of bicycle motor wheel
- Bicycle Sleeping and Accommodation Coach
- Bicycle Locomotive No. 3
- Single Electric Bicycle Structure
- Bicycle Coal Car
- Bicycle Palace CAr
- Bicycle Box Freight Car
- Single Post, Double track, Steel Elevated Bicycle structure
- Bicycle Locomotive No. 2
- Biplane
Biplane - Plan of a large Chesapeake Bay sharpie taken from remains of boat
- Plan of a Chesapeake Bay terrapin smack
- Plan of typical New Haven sharpie showing design and construction characteristics
- A Light Egyptian Chariot
The light chariots of the Egyptians enabled them to secure the fullest advantage from the speed and breeding of their horses, which at the time were considered to be the finest in the world. The Egyptian chariots were sometimes square, but more often they were semi-circular or horse-shoe shape, with the curved front towards the horses. - Plan of North Carolina sharpie schooner taken from remains of boat
- Plan of North Carolina sharpie of the 1880's
Plan of North Carolina sharpie of the 1880's - Small-size one-man flame-thrower
Small-size one-man flame-thrower - 20-mm aircraft cannon
20-mm aircraft cannon - Medium flame-thrower
Medium flame-thrower - 75-mm recoilless gun
75-mm recoilless gun - Firing Position
88-mm multi-purpose gun - Firing Position - Panzer
Panzer - 15-mm aircraft cannon
15-mm aircraft cannon - Travelling Position
88-mm multi-purpose gun - Travelling Position