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Filter: Subject of Inventions
Filter: Year of 1800-1899
Filter: Subject of technology
| Date: | 1863 |
|---|---|
| Description: | Sketch of John Muir's clock design.The built clock was a combination of scythes, wheels and arrows. A rough bough of burr oak was set upon a base incrusted... |
| Date: | 1872 |
|---|---|
| Description: | Lillian Sholes, demonstrating a prototype typewriter invented by her father, Christopher Latham Sholes. |
| Date: | 1863 |
|---|---|
| Description: | A sketch of mechanical parts for an invention. |
| Date: | 1863 |
|---|---|
| Description: | A sketch of a thermometer. Quoting from Muir's autobiography "My Boyhood and Youth" he described the thermometer as "made of an iron rod, about three feet ... |
| Date: | 1863 |
|---|---|
| Description: | Watercolor illustration of a barometer designed by John Muir in his boyhood. |
| Date: | 1863 |
|---|---|
| Description: | Muir's illustration of a means to record time by use of a star. He titled the drawing "The star hand rising and setting with the sun all the year". |
| Date: | 1863 |
|---|---|
| Description: | A John Muir sketch of a fancake draught of sawframe with crankshaft in position. Scale two inches per foot. Depth of frame 5 1/2 inches. Speed of cranks... |
| Date: | 1896 |
|---|---|
| Description: | 40 H.P. experimental tractor. Original caption reads: "40 H.P., Built in 1896." |
| Date: | 02 13 1862 |
|---|---|
| Description: | Letter describing gun invention and Bradford's intentions for improvements. |
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