GB653419A - Improvements in devices for arresting a shaft by any one of a number of pawls arranged around the shaft - Google Patents

Improvements in devices for arresting a shaft by any one of a number of pawls arranged around the shaft

Info

Publication number
GB653419A
GB653419A GB25621/48A GB2562148A GB653419A GB 653419 A GB653419 A GB 653419A GB 25621/48 A GB25621/48 A GB 25621/48A GB 2562148 A GB2562148 A GB 2562148A GB 653419 A GB653419 A GB 653419A
Authority
GB
United Kingdom
Prior art keywords
stop
shaft
spring
pawl
gap
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
GB25621/48A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB653419A publication Critical patent/GB653419A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D71/00—Mechanisms for bringing members to rest in a predetermined position
    • F16D71/04—Mechanisms for bringing members to rest in a predetermined position providing for selection between a plurality of positions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

653,419. Stopping shafts in predetermined positions. PHILIPS ELECTRICAL, Ltd. Oct. 1, 1948, No. 25621. Convention date, Oct. 4, 1947. [Class 80(ii)] [Also in Group XL(c)] Stop-pawls 5, angularly and axially spaced about a rotary shaft 1 on rockshafts 6, and each cooperating with one of a number of peripherally notched discs 2 arranged along the shaft, to stop the latter in predetermined angular positions, as for tuning a radio receiver or transmitter, are positively lifted out of their notches 3 in the stop-discs 2 by the movement of the pawl-selector mechanism, which comprises a single annular cam surface 10 on a coaxial rotary selector-wheel 9 and having a single gap or depression which in an appropriate set position, admits a selected one of a number of coplanar pins 8, one on each rockshaft 6, thereby permitting a spring 17 to act on a radially-guided member 13 (shown axially out of place) so that its curved undersurface 14 urges the pin 8 down into the gap, thus causing the corresponding pawl 5 to enter its stop-disc notch 3 to stop the shaft 1 in the selected position. On the first movement of the selectorwheel 9 towards a new position, one of the bevelled sides 11 of the cam-gap positively cams out the operative pin 8, lifting the corresponding pawl 5 out of its stop-wheel notch 3, which frees the shaft 1 for rotation until arrested in the new position by a selected pawl 5. The idle pins 8 ride on or near the cam surface 10 under the influence of a spring or stop (not shown). In Fig. 2, not shown, the slot-guided member 13 and spring 17 are replaced by a single bent-wire spring.
GB25621/48A 1947-10-04 1948-10-01 Improvements in devices for arresting a shaft by any one of a number of pawls arranged around the shaft Expired GB653419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL653419X 1947-10-04

Publications (1)

Publication Number Publication Date
GB653419A true GB653419A (en) 1951-05-16

Family

ID=19795151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25621/48A Expired GB653419A (en) 1947-10-04 1948-10-01 Improvements in devices for arresting a shaft by any one of a number of pawls arranged around the shaft

Country Status (1)

Country Link
GB (1) GB653419A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2270736A1 (en) * 2006-07-28 2007-04-01 Ingenieria De Encofrados Y Servicios, S.L. Mechanical bi-stable device for determining two fixed functional positions of gyrator, has intermediate portion partially surrounding gyrator and portion in common with eccentric block of gyrator to determine two stable positions of gyrator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2270736A1 (en) * 2006-07-28 2007-04-01 Ingenieria De Encofrados Y Servicios, S.L. Mechanical bi-stable device for determining two fixed functional positions of gyrator, has intermediate portion partially surrounding gyrator and portion in common with eccentric block of gyrator to determine two stable positions of gyrator

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