GB1289635A - - Google Patents

Info

Publication number
GB1289635A
GB1289635A GB1289635DA GB1289635A GB 1289635 A GB1289635 A GB 1289635A GB 1289635D A GB1289635D A GB 1289635DA GB 1289635 A GB1289635 A GB 1289635A
Authority
GB
United Kingdom
Prior art keywords
chamber
passage
slots
air
rotor
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
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 filed Critical
Publication of GB1289635A publication Critical patent/GB1289635A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/12—Ear, face, or lip protectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B25/00—Regulating, controlling, or safety means
    • F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
    • F01B25/14—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity peculiar to particular kinds of machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

1289635 Rotary positive-displacement machines FRIED KRUPP GmbH 22 Jan 1970 [23 Jan 1969] 3211/70 Heading F1F A hand-held pneumatic-motor for a grinding wheel includes a vaned rotor 12 attached to an output shaft 29 and supported by fixed discs 21, 22 at the ends of a cylindrical housing 11 that is furnished with two sets of air-inlet slots 10, 16 and a single set of air-outlet slots 26. Initially, compressed air is supplied solely to the slots 10 through an inlet 1<SP>1</SP>, a passage 2 whose outlet end is controlled by a centrifugal governor 4, a chamber 9 and a passage 23. When the rotor speed diminishes as a consequence of an increasing load on the shaft 29 the governor operates so as to reduce its throttling effect on the air entering the chamber 9. The consequential pressure-rise in said chamber moves a stepped piston 14 so as to allow additional air to enter a working chamber 24 by way of a passage 15 and the slots 16, and thereby augment the torque produced by the rotor. The piston 14 renders the passage 15 closed until the pressure in the chamber 9 reaches a predetermined value.
GB1289635D 1969-01-23 1970-01-22 Expired GB1289635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691903157 DE1903157A1 (en) 1969-01-23 1969-01-23

Publications (1)

Publication Number Publication Date
GB1289635A true GB1289635A (en) 1972-09-20

Family

ID=5723126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289635D Expired GB1289635A (en) 1969-01-23 1970-01-22

Country Status (4)

Country Link
DE (1) DE1903157A1 (en)
FR (1) FR2028964A1 (en)
GB (1) GB1289635A (en)
NL (1) NL7000524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242708A (en) * 1990-04-04 1991-10-09 Pierburg Gmbh Sliding-vane or swing-vane vacuum pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967673A (en) * 1974-12-11 1976-07-06 United States Steel Corporation Continuous-casting mold with minimal thermal restraint and method of making

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2242708A (en) * 1990-04-04 1991-10-09 Pierburg Gmbh Sliding-vane or swing-vane vacuum pump
GB2242708B (en) * 1990-04-04 1993-11-17 Pierburg Gmbh Vane-cell or swing-vane vacuum pump

Also Published As

Publication number Publication date
NL7000524A (en) 1970-07-27
FR2028964A1 (en) 1970-10-16
DE1903157A1 (en) 1970-10-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee