US196550A - Improvement in sun-dials - Google Patents
Improvement in sun-dials Download PDFInfo
- Publication number
- US196550A US196550A US196550DA US196550A US 196550 A US196550 A US 196550A US 196550D A US196550D A US 196550DA US 196550 A US196550 A US 196550A
- Authority
- US
- United States
- Prior art keywords
- sun
- ring
- dials
- improvement
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 241001247287 Pentalinon luteum Species 0.000 title description 4
- 241001280173 Crassula muscosa Species 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B49/00—Time-pieces using the position of the sun, moon or stars
- G04B49/02—Sundials
Definitions
- My invention consists of a ring having circumferen'tial slots, surroundedby a perforated adjustable band, and containing an adjustable dial or scale, formed in an epicycloid curve, and having engraved on it hour-marks, upon which a pencil of light falls through the aperture in the band.
- A is a hoop or ring, having circumferential slots at b, and provided with an eye, 0, and ring 61, by which it may be suspended.
- a narrow thin band, B surrounds the ring A, and is provided with guiderpins e, which extend inward into the slot a.
- a small aperture, f is made through the band, and along the surface of the ring, at the sides of the band B, letters are engraved,
- the manner of using my improved sun-dial is as follows: The aperture f in the band B is placed opposite the letter indicating the appropriate month. This gives the required declination for the month. The instrument is then suspended by the ring 01, and placed so thata pencil of light passes through the aperture f and falls on the dial 0. The figure touched by the pencil indicates the hour. If great accuracy is required, the spaces between the figures may be graduated.
- the instrument is not limited to any particular size, as it may be made so small as to serve as a charm for a watch-chain, or it may be made of large size and mounted on a fixed support.
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
- Toys (AREA)
Description
UNITE STATES PATENT QFFIGE.
AXEL w. ANDERSON, OFBEDFORD, PENNSYLVANIA, ASSIGNOR TO HIMSEL AND ILLIAM B. HECKERMAN, 0F SAME PLACE.
IMPROVEMENT IN SUN-DIALS.
Specification forming part of Letters Patent 0. 196,550, dated October 30, 1877 application filed September 1, 1877.
'TO all whom it may concern:
' sponding parts.
My invention consists of a ring having circumferen'tial slots, surroundedby a perforated adjustable band, and containing an adjustable dial or scale, formed in an epicycloid curve, and having engraved on it hour-marks, upon which a pencil of light falls through the aperture in the band.
Referring to the drawings, A is a hoop or ring, having circumferential slots at b, and provided with an eye, 0, and ring 61, by which it may be suspended. A narrow thin band, B, surrounds the ring A, and is provided with guiderpins e, which extend inward into the slot a. A small aperture, f, is made through the band, and along the surface of the ring, at the sides of the band B, letters are engraved,
which represent the months of the year. A
scale or dial, 0, formed on an epicycloid curve, and having marked on it figures representing the hours of the day, is secured to the ring increased steadiness.
The manner of using my improved sun-dial is as follows: The aperture f in the band B is placed opposite the letter indicating the appropriate month. This gives the required declination for the month. The instrument is then suspended by the ring 01, and placed so thata pencil of light passes through the aperture f and falls on the dial 0. The figure touched by the pencil indicates the hour. If great accuracy is required, the spaces between the figures may be graduated.
' The instrument is not limited to any particular size, as it may be made so small as to serve as a charm for a watch-chain, or it may be made of large size and mounted on a fixed support.
Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is
The dial 0, formed on an epicycloid curve, as described, in combination with ring A and band B, as specified.
AXEL WILLIAM ANDERSON.
Witnesses ALEX. RAMsEY, GEo. BLYMYER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US196550A true US196550A (en) | 1877-10-30 |
Family
ID=2265956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US196550D Expired - Lifetime US196550A (en) | Improvement in sun-dials |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US196550A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865232A (en) * | 1954-10-26 | 1958-12-23 | Breeze Corp | Multi-speed drive device |
| US2931102A (en) * | 1957-08-08 | 1960-04-05 | Thew John Garret | Sun dial |
| US3303567A (en) * | 1963-11-01 | 1967-02-14 | John P Blanks | Sun dial |
| US4384408A (en) * | 1981-08-24 | 1983-05-24 | Bohlayer William L | Columnar sundial |
-
0
- US US196550D patent/US196550A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865232A (en) * | 1954-10-26 | 1958-12-23 | Breeze Corp | Multi-speed drive device |
| US2931102A (en) * | 1957-08-08 | 1960-04-05 | Thew John Garret | Sun dial |
| US3303567A (en) * | 1963-11-01 | 1967-02-14 | John P Blanks | Sun dial |
| US4384408A (en) * | 1981-08-24 | 1983-05-24 | Bohlayer William L | Columnar sundial |
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