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- Plan of a Chesapeake Bay terrapin smack
- Plan of a large Chesapeake Bay sharpie taken from remains of boat
- Plan of typical New Haven sharpie showing design and construction characteristics
- Plan of North Carolina sharpie of the 1880's
Plan of North Carolina sharpie of the 1880's - Plan of North Carolina sharpie schooner taken from remains of boat
- Out for a ride
- 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. - Remaining Drawings from U. S. Patent
Remaining Drawings from U. S. Patent 186838, showing the dial gearing used in the Auburndale rotary. - 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.) - 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. - 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. - Space Shuttle - forward and Adt elevations
- Space Shuttle - isometric
- Space Shuttle - port elevation
- Space Shuttle - component isometric
- Space Shuttle - starboard elevation
- Space Shuttle - top plan
- Biplane
Biplane - 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. - 15-mm aircraft cannon
15-mm aircraft cannon - 20-mm aircraft cannon
20-mm aircraft cannon - 75-mm recoilless gun
75-mm recoilless gun - Firing Position
88-mm multi-purpose gun - Firing Position - Medium flame-thrower
Medium flame-thrower - Panzer
Panzer - Small-size one-man flame-thrower
Small-size one-man flame-thrower - Travelling Position
88-mm multi-purpose gun - Travelling Position - Sacramento Trolley System Map
- P.G. and E Car at Oak Park
- P.G. and E Carbarns at 28t hand N, 1914
- Central Calif. Traction Co. Car 103 at Colonial Heights
- P.G. and E. Car 37, A wooden type, on the 3 line, 1941
- Sacramento City Lines Cars at S.P. Depot
- Sacramento Northern Car 64 on C Street
- Car 14 at the S.P. Depot
- Car 42 at N St. Carbarn
- Sacramento City Lines Car 90
- Sacramento City Lines Car on 10th Street near M St., 1946
- Central Calif. Traction Co. Car 105 on Stockton Blvd
- Folsom Power House
- Sacramento Electric, Gas and Railway Co., Car 2
- Sacramento Electric, Gas and Railway co. on the J Line
- Bicycle Locomotive No. 3
- Bicycle Palace CAr
- Bicycle Railway Switch
- Bicycle Sleeping and Accommodation Coach
- Bicycle sytem applied to N.Y. Elevated railway
- Combiined Elevated and Surface Structure
- Cross Section of Bicycle Structure and Bicycle Electric Car
- Elevated Double Track Georgia Pine Structure
- Elevated Railroad Station
- Screenshot (35750)
- Screenshot (35767)
- Sectional View of Bicycle Motor Car
- Side view of bicycle motor wheel
- Bicycle Box Freight Car
- Bicycle Coal Car
- Single Bicycle Elevated Structure
- Single Electric Bicycle Structure
- Single Post, Double track, Steel Elevated Bicycle structure