US1875229A - Notching device - Google Patents

Notching device Download PDF

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Publication number
US1875229A
US1875229A US316554A US31655428A US1875229A US 1875229 A US1875229 A US 1875229A US 316554 A US316554 A US 316554A US 31655428 A US31655428 A US 31655428A US 1875229 A US1875229 A US 1875229A
Authority
US
United States
Prior art keywords
notching
spring
pawl
positions
notches
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
US316554A
Other languages
English (en)
Inventor
Falcke Emil
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US1875229A publication Critical patent/US1875229A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20582—Levers
    • Y10T74/20588—Levers toggle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20924—Controller checks

Definitions

  • the ordinary form of notching device consists of a spring ⁇ pressed roller and a disc '7:15 provided with notched recesses.
  • the notched recesses on the disc are so arranged that when the spring pressed roller enters the notch and has reached its lowest position, the rotatable switching member occupies one of its definite v:'20 switch positions in which the switching device can be held without danger of arcing or burning at the contacts.
  • the notching device serves to show to the operator through the marked variations in operating torque ::;3325 that the switching apparatus is in the proper switching position.
  • Fig. 1 is a front View of lthe controller with the casing broken away to show the arrangement of the notching de- Vvice and Fig. 2 is a sectional view illustrating more in detail theV operating parts of the notching mechanism.
  • Figs. 1 and 2 the controller 10 is shown of the cam type having a plurality of definitevcircuit controlling positions and having a casing wall 11 oii which a bearing bracket l12 is niounted.
  • vIn the latter is pivotally mounted the notching pawl 13 carrying the roller 14.
  • the notching pawl 13 is biased by the spring 17 int-o engagement with the notched disc 15, which is fixed on the rotatable shaft 16 of the controller.
  • the notching pawl cooperates with the notched disc to vary the force required to move the controller 10 to and from its defi- .nite position.
  • a toggle lever system 18 is provided which consists of two levers.
  • Thev notch e' itselfmay serve as a stop for theilevers 18, f or 'if desired a fixed stop '21; Inay'also be provd'edrin Lorder to -ma1nta1n the ;toggle levers 18 'at an angle so that, after a long' of (operation of the device is nsured. f
  • i fnotchingfdevice for controllers rotata i 'wwable between ⁇ a fiplrality of definite circuit' controlling positions, comprisingrarotatable o ;member having notches in the Vloeripl-ery Vthereof 'corresponding to said definitecircuit .controlling positions, a notchinig' pawl coozperating with said noit'ches vto J vary the'fiforce c. yiso

Landscapes

  • Displays For Variable Information Using Movable Means (AREA)
  • Mechanical Control Devices (AREA)
US316554A 1928-01-07 1928-11-01 Notching device Expired - Lifetime US1875229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE303750T 1928-01-07

Publications (1)

Publication Number Publication Date
US1875229A true US1875229A (en) 1932-08-30

Family

ID=31894370

Family Applications (1)

Application Number Title Priority Date Filing Date
US316554A Expired - Lifetime US1875229A (en) 1928-01-07 1928-11-01 Notching device

Country Status (2)

Country Link
US (1) US1875229A (enrdf_load_stackoverflow)
GB (1) GB303750A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622451A (en) * 1948-03-27 1952-12-23 Westinghouse Air Brake Co Driving mechanism
US2709504A (en) * 1952-07-21 1955-05-31 Borg Warner Anti-friction parking brake
US3199368A (en) * 1962-05-07 1965-08-10 Boeing Co Aircraft throttle having adjustable, overpowerable gate
US4854002A (en) * 1987-03-24 1989-08-08 Smith Keith E Gutter broom with locking mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622451A (en) * 1948-03-27 1952-12-23 Westinghouse Air Brake Co Driving mechanism
US2709504A (en) * 1952-07-21 1955-05-31 Borg Warner Anti-friction parking brake
US3199368A (en) * 1962-05-07 1965-08-10 Boeing Co Aircraft throttle having adjustable, overpowerable gate
US4854002A (en) * 1987-03-24 1989-08-08 Smith Keith E Gutter broom with locking mechanism

Also Published As

Publication number Publication date
GB303750A (enrdf_load_stackoverflow) 1930-07-07

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