DE54348C - Hourglass measuring different periods of time - Google Patents

Hourglass measuring different periods of time

Info

Publication number
DE54348C
DE54348C DENDAT54348D DE54348DA DE54348C DE 54348 C DE54348 C DE 54348C DE NDAT54348 D DENDAT54348 D DE NDAT54348D DE 54348D A DE54348D A DE 54348DA DE 54348 C DE54348 C DE 54348C
Authority
DE
Germany
Prior art keywords
hourglass
time
different periods
measuring different
muff
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
Application number
DENDAT54348D
Other languages
German (de)
Original Assignee
G. HALLER in Ottensen, 1. Bornstr. 31
Publication of DE54348C publication Critical patent/DE54348C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/04—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity
    • G04F1/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Glass Compositions (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.

Claims (1)

Patent-Ansprbch:Patent claim: Eine Sanduhr, deren Glasbirnen durch einen theilweise mit Schlitzen und Schraubengewinde versehenen, aufsen kegelförmigen Muff dergestalt verbunden sind, dafs die Durchlauföffnung durch Verstellen einer auf den Muff geschraubten passenden Mutter verengt oder erweitert und infolge dessen die Laufdauer der Uhr verändert wird.An hourglass, the glass bulbs of which are partially slotted and screw-threaded provided on the conical muff are connected in such a way that the passage opening by adjusting a suitable nut screwed onto the muff, narrowed or expanded and as a result, the running time of the clock is changed.
DENDAT54348D Hourglass measuring different periods of time Expired - Lifetime DE54348C (en)

Publications (1)

Publication Number Publication Date
DE54348C true DE54348C (en)

Family

ID=328945

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT54348D Expired - Lifetime DE54348C (en) Hourglass measuring different periods of time

Country Status (1)

Country Link
DE (1) DE54348C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436879A (en) * 2006-04-07 2007-10-10 Andrew Sinclair Clarke Adjustable sand timer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436879A (en) * 2006-04-07 2007-10-10 Andrew Sinclair Clarke Adjustable sand timer

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