GB440444A - Improvements in, and relating to, clocks, watches and like timepieces - Google Patents

Improvements in, and relating to, clocks, watches and like timepieces

Info

Publication number
GB440444A
GB440444A GB2278734A GB2278734A GB440444A GB 440444 A GB440444 A GB 440444A GB 2278734 A GB2278734 A GB 2278734A GB 2278734 A GB2278734 A GB 2278734A GB 440444 A GB440444 A GB 440444A
Authority
GB
United Kingdom
Prior art keywords
lever
dial
quadrant
projection
hour
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
GB2278734A
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.)
ERNEST VICTOR RAYNOR
Original Assignee
ERNEST VICTOR RAYNOR
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 ERNEST VICTOR RAYNOR filed Critical ERNEST VICTOR RAYNOR
Priority to GB2278734A priority Critical patent/GB440444A/en
Publication of GB440444A publication Critical patent/GB440444A/en
Expired legal-status Critical Current

Links

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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/16—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24
    • G04B19/163—Shiftable dials, e.g. indicating alternately from 1 to 12 and from 13 to 24 numbers which are visible alternately from 1 to 12 and from 13 to 24 on the same dial G04B19/085

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

440,444. Clocks. RAYNOR, E. V., 159, Tyler Street, Brightside, Sheffield. Aug. 4, 1934, No. 22787. [Class 139] In a clock for indicating twelve or twenty-four hour time, wherein two sets of hour indications 0 . . 11 and 12 ... 23 on a dial bare alternately brought behind openings c in a fixed masking disc a the movements of the dial are effected by a quadrant pivoted to a spring-influenced member actuated by a projection on the hour spindle. Pivoted to the back of the masking disc a at j is a lever m pivotally suspended from which at q<1> is a quadrant plate q the notched radial sides of which coact with projections r, s on the dial b to rock it to its two positions determined by a stop e thereon, the movement of the dial b being limited by the recesses f in the top slot c, Fig. 1. Pivoted to the lever mat p is a lever o to one end of which is connected a spring y, anchored at z, which biasses the lever o against a stop m<1> on lever m and forces the quadrant downwards. A cam or projection w on the hour-hand spindle x engages the lever o and through it lifts lever m and the quadrant. The quadrant has projections v coacting with a biassing spring t secured to lever m, such that when lifted from the position shown in Fig. 2, the quadrant rides idly past the projection r and when at noon, the projection w releases the lever o, the left (Fig. 5) notched side of the quadrant engages and depresses the projection r to rock the dial b to show the indications 12 ... 23 through the openings c. At midnight, the quadrant is again raised and when released depresses the projection s on the dial, rocking it to show the indications 0 ... 11. The dial b is removably fitted on a flange d concentric with the hour-hand spindle x, and is apertured at g, h whereby it may be slid thereover. The pivotal arrangement of lever o on member m enables the hands to be set by reverse rotation of the spindle x without actuating the dial moving mechanism. According to the Provisional Specification, the quadrant is pivotally carried by a spring- biassed bar or rod movable in guides on the masking dial by a cam on the hour spindle.
GB2278734A 1934-08-04 1934-08-04 Improvements in, and relating to, clocks, watches and like timepieces Expired GB440444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2278734A GB440444A (en) 1934-08-04 1934-08-04 Improvements in, and relating to, clocks, watches and like timepieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2278734A GB440444A (en) 1934-08-04 1934-08-04 Improvements in, and relating to, clocks, watches and like timepieces

Publications (1)

Publication Number Publication Date
GB440444A true GB440444A (en) 1935-12-31

Family

ID=10185069

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2278734A Expired GB440444A (en) 1934-08-04 1934-08-04 Improvements in, and relating to, clocks, watches and like timepieces

Country Status (1)

Country Link
GB (1) GB440444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998058298A1 (en) * 1997-06-18 1998-12-23 Idt-Lcd Holdings (Bvi) Ltd. (Idt-Bvi) Projection clock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998058298A1 (en) * 1997-06-18 1998-12-23 Idt-Lcd Holdings (Bvi) Ltd. (Idt-Bvi) Projection clock

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