GB553146A - Watch having a device for measurement of time intervals - Google Patents

Watch having a device for measurement of time intervals

Info

Publication number
GB553146A
GB553146A GB14333/41A GB1433341A GB553146A GB 553146 A GB553146 A GB 553146A GB 14333/41 A GB14333/41 A GB 14333/41A GB 1433341 A GB1433341 A GB 1433341A GB 553146 A GB553146 A GB 553146A
Authority
GB
United Kingdom
Prior art keywords
hands
spindle
watch
crown
nov
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
Application number
GB14333/41A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SA
MONTRES PERRET ET BERTHOUD SA
Original Assignee
MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SA
MONTRES PERRET ET BERTHOUD SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SA, MONTRES PERRET ET BERTHOUD SA filed Critical MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SA
Publication of GB553146A publication Critical patent/GB553146A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04FTIME-INTERVAL MEASURING
    • G04F7/00Apparatus for measuring unknown time intervals by non-electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

553,146. Watches. MANUFACTURE DES MONTRES UNIVERSAL PERRET ET BERTHOUD SOC. ANON. Nov. 6, 1941, Nos. 14333 and 14334. Convention dates, Nov. 6, 1940, and Sept. 22, 1941. [Class 139] A watch with a stop mechanism for measuring time intervals has an additional dial and hour and minute hands which can be set independently of the watch movement to indicate the moment of starting of the measuring period. As shown in Fig. 2 applied to a wrist watch with a chronograph hand 3 and counting hands and dials 5, 6 and 7 for hours, minutes and seconds additional hands 9, 10 co-operating with a small dial (not shown) are provided for setting the starting time. These hands are secured to nested sleeves loose on a fixed axle and carrying pinions 11, 12 connected by gearing 13 to 17 and 19 manipulated by a crown 18. As shown in Fig. 4 the crown is fixed to an axially movable spindle 22 which when pulled permits a prismatic portion 25 on the spindle to engage a polygonal hole in the driving element 24 of the gear train to the hands 9, 10. The spindle 22 is formed with grooves 26, 27 that co-operate with spring blades 28, 29 to hold the spindle in one or other of its set positions.
GB14333/41A 1940-11-06 1941-11-06 Watch having a device for measurement of time intervals Expired GB553146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH553146X 1940-11-06

Publications (1)

Publication Number Publication Date
GB553146A true GB553146A (en) 1943-05-10

Family

ID=4519788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14333/41A Expired GB553146A (en) 1940-11-06 1941-11-06 Watch having a device for measurement of time intervals

Country Status (1)

Country Link
GB (1) GB553146A (en)

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