US740433A - Night-light. - Google Patents

Night-light. Download PDF

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Publication number
US740433A
US740433A US12726202A US1902127262A US740433A US 740433 A US740433 A US 740433A US 12726202 A US12726202 A US 12726202A US 1902127262 A US1902127262 A US 1902127262A US 740433 A US740433 A US 740433A
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United States
Prior art keywords
light
night
dial
bedstead
lantern
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Expired - Lifetime
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US12726202A
Inventor
Friedrich Hirth
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Individual
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Individual
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Priority to US12726202A priority Critical patent/US740433A/en
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Publication of US740433A publication Critical patent/US740433A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/34—Position of the hands projected optically

Definitions

  • This invention relates to a night-light so constructed that the image of a clock-dial and hands may be momentarily thrown upon the ceiling above a bedstead.
  • the light is controlled by a switch within easy reach of the hand, so that it may be turned on or off and the time may be ascertained without changing the recumbent position.
  • Figure 1 is a side elevation of my improved night-light, showing it in use; Fig. 2, a longitudinal section through the lantern; Fig. 3, a face view of the inner dial, and Fig. 4 a face view of the outer dial.
  • the letter a represents the bottle-shaped case or shell of a magic-lantern, said case being composed of a lower wide body portion or belly and of an upper contracted neck I).
  • This neck constitutes a vertical upwardlypointing lens-tube.
  • a chamber a At the bottom of shell a is formed a chamber a, having a removable lid d and adapted for the reception of a clock 0.
  • This clock has a front and a rear dial 0 c and front and rear hands.
  • the figures of the front dial 0' are reversed and its hands turn from right to left, while the figures and hands of the rear dial are normal.
  • Into the belly of shell 0. opens beneath the neck I) a pocket (1 which is inclined toward the bottom of the shell and contains an inclined electric-light bulb d. This bulb illuminates the front dial a, but being arranged laterally beyond the neck does not interpose its body between dial and objective lens.
  • the lantern is suspended by a hook e from a bedstead A in an upright position and throws the image upon the ceiling B above the foot end of the bedstead.
  • the wires (1 d of lamp d lead to a switch 1, adapted to be attached to the side of the bedstead within easy reach of the occupant, the current being furnished by a battery g or otherwise.
  • switchf Normally the switchf is open, so that the lantern is dark. If it is desired to ascertain the time, the occupant of the bed closes switch f, so' as to illuminate the dial 0 and throw the enlarged image upon the ceiling B. After the time has been read olf the light is again extinguished by opening switchf. In this way the operator may open and close the switch and ascertain the time without. changing his recumbent position.
  • a night-light composed of a bottle-shaped

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Audible And Visible Signals (AREA)

Description

PATENTED OCT. 6, 1903.
T. HIRTH. NIGHT LIGHT. LPPPICATION FILED OUT. 14. 1902.
H0 MODEL.
Imm. wsumcwu o c Patented October 6, 1903.
PATENT OFFICE.
FRIEDRICH HIRTH, OF NEW YORK, N. Y.
NIGHT-LIG HT.
SPECIFICATION forming part of Letters Patent No. 740,433, dated October 6, 1903.
Application filed October 14, 1902. Serial No. 127,262. (No model.)
To all whom it may concern:
Be it known that LFRIEDRIOH HIRTH,a citizen of Germany, residing at New York city, Manhattan, county and State of New York, have invented certain new and useful Improvements in Night-Lights, of which thefollowing is a specification.
This invention relates to a night-light so constructed that the image of a clock-dial and hands may be momentarily thrown upon the ceiling above a bedstead. The light is controlled by a switch within easy reach of the hand, so that it may be turned on or off and the time may be ascertained without changing the recumbent position.
In the accompanying drawings, Figure 1 is a side elevation of my improved night-light, showing it in use; Fig. 2, a longitudinal section through the lantern; Fig. 3, a face view of the inner dial, and Fig. 4 a face view of the outer dial.
The letter a represents the bottle-shaped case or shell of a magic-lantern, said case being composed of a lower wide body portion or belly and of an upper contracted neck I). This neck constitutes a vertical upwardlypointing lens-tube. At the bottom of shell a is formed a chamber a, having a removable lid d and adapted for the reception of a clock 0. This clock has a front and a rear dial 0 c and front and rear hands. The figures of the front dial 0' are reversed and its hands turn from right to left, while the figures and hands of the rear dial are normal. Into the belly of shell 0. opens beneath the neck I) a pocket (1 which is inclined toward the bottom of the shell and contains an inclined electric-light bulb d. This bulb illuminates the front dial a, but being arranged laterally beyond the neck does not interpose its body between dial and objective lens.
, The lantern is suspended by a hook e from a bedstead A in an upright position and throws the image upon the ceiling B above the foot end of the bedstead. The wires (1 d of lamp d lead to a switch 1, adapted to be attached to the side of the bedstead within easy reach of the occupant, the current being furnished by a battery g or otherwise.
Normally the switchf is open, so that the lantern is dark. If it is desired to ascertain the time, the occupant of the bed closes switch f, so' as to illuminate the dial 0 and throw the enlarged image upon the ceiling B. After the time has been read olf the light is again extinguished by opening switchf. In this way the operator may open and close the switch and ascertain the time without. changing his recumbent position.
As the dial 0' is reversed, its image upon the ceiling B will be righted, so that a correct representation of dial will be presented to.
A night-light composed of a bottle-shaped
US12726202A 1902-10-14 1902-10-14 Night-light. Expired - Lifetime US740433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12726202A US740433A (en) 1902-10-14 1902-10-14 Night-light.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12726202A US740433A (en) 1902-10-14 1902-10-14 Night-light.

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US740433A true US740433A (en) 1903-10-06

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US12726202A Expired - Lifetime US740433A (en) 1902-10-14 1902-10-14 Night-light.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694338A (en) * 1953-03-06 1954-11-16 Moultry Clock face projecting device
US2738703A (en) * 1951-06-14 1956-03-20 Zorn Werner Watch dial projecting device
US3136210A (en) * 1960-05-19 1964-06-09 Charles A Barrett Apparatus for shadow projection of clock dial

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738703A (en) * 1951-06-14 1956-03-20 Zorn Werner Watch dial projecting device
US2694338A (en) * 1953-03-06 1954-11-16 Moultry Clock face projecting device
US3136210A (en) * 1960-05-19 1964-06-09 Charles A Barrett Apparatus for shadow projection of clock dial

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