FR672876A - Perfectionnements aux procédés de rectification et aux machines destinées à rectifier des pièces comportant plusieurs diamètres différents - Google Patents

Perfectionnements aux procédés de rectification et aux machines destinées à rectifier des pièces comportant plusieurs diamètres différents

Info

Publication number
FR672876A
FR672876A FR672876DA FR672876A FR 672876 A FR672876 A FR 672876A FR 672876D A FR672876D A FR 672876DA FR 672876 A FR672876 A FR 672876A
Authority
FR
France
Prior art keywords
grinding
machines
several different
different diameters
parts
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
Other languages
English (en)
French (fr)
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.)
Cincinnati Grinders Inc
Original Assignee
Cincinnati Grinders Inc
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 Cincinnati Grinders Inc filed Critical Cincinnati Grinders Inc
Application granted granted Critical
Publication of FR672876A publication Critical patent/FR672876A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/14—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch
    • H01H31/16—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member
    • H01H31/18—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member actuated through the movement of one or more insulators
    • H01H31/20—Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member actuated through the movement of one or more insulators at least one insulator being rotatable about its own geometrical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
FR672876D 1928-04-09 1929-04-09 Perfectionnements aux procédés de rectification et aux machines destinées à rectifier des pièces comportant plusieurs diamètres différents Expired FR672876A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US672876XA 1928-04-09 1928-04-09

Publications (1)

Publication Number Publication Date
FR672876A true FR672876A (fr) 1930-01-08

Family

ID=22074983

Family Applications (1)

Application Number Title Priority Date Filing Date
FR672876D Expired FR672876A (fr) 1928-04-09 1929-04-09 Perfectionnements aux procédés de rectification et aux machines destinées à rectifier des pièces comportant plusieurs diamètres différents

Country Status (3)

Country Link
BE (1) BE378063A (enrdf_load_html_response)
DE (1) DE531339C (enrdf_load_html_response)
FR (1) FR672876A (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091176B (de) * 1954-01-19 1960-10-20 Achille Bagnagatti Kontakt-Vorrichtung fuer Drehtrennschalter
IT1187433B (it) * 1985-10-03 1987-12-23 Ceme Spa Sezionatore elettrico a tre colonne di cui la centrale rotante di cui due contatti femmina sono racchiusi in un involuoro stagno alla polluzione costutuente la parte mobile del sezionatore mentre i contatti maschio fissati agli isollatori laterali sono protetti da involucri semiaperti permettenti l'entrata dei contatti femmina
FR2761806B1 (fr) * 1997-04-07 1999-05-07 Gec Alsthom T Et D Inc Phase de sectionneur a double coupure centrale

Also Published As

Publication number Publication date
DE531339C (de) 1931-08-08
BE378063A (enrdf_load_html_response)

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