GB1214174A - Improvements in electric power tools - Google Patents

Improvements in electric power tools

Info

Publication number
GB1214174A
GB1214174A GB36663/68A GB3666368A GB1214174A GB 1214174 A GB1214174 A GB 1214174A GB 36663/68 A GB36663/68 A GB 36663/68A GB 3666368 A GB3666368 A GB 3666368A GB 1214174 A GB1214174 A GB 1214174A
Authority
GB
United Kingdom
Prior art keywords
shaft
spring
follower
speed
blade
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
GB36663/68A
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
Publication of GB1214174A publication Critical patent/GB1214174A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08—Driving mechanisms
    • A47J43/082—Driving mechanisms for machines with tools driven from the upper side
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/23—Mechanically-actuated centrifugal switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

1,214,174. Centrifugal switches. GENERAL ELECTRIC CO. 1 Aug., 1968 [25 April, 1968], No. 36663/68. Heading H1N. In an electric food mixer a speed control shaft 44 carries two cams 54, 58 the first of which controls the spring force on a governor sytem to vary the speed and the other operates a main on/off switch 70 to interrupt the motor supply at the minimum speed setting of the shaft. The cam 58 operates switch 70 through a sliding follower 68. Cam 54 acts on a resilient blade follower 42 coupled by a tension spring 40 to a pivotally mounted blade contact 36 cooperating with a fixed contact 38. The governor has a fly-weight mechanism (32) (Fig. 2, not shown) which moves a cap 34 axially to move contact 36 against the force of spring 40. The spring 40 is by-passed by a hook portion 62 when the shaft 44 is moved to the maximum speed position so that follower 42 and blade 36 are rigidly linked and the contacts permanently closed. The hook portion 62 may be replaced by a loose link (Fig. 5, not shown). Concentric with the speed setting shaft 44 is a beater ejector device comprising a sliding rod operated by a push button and carrying a double armed actuator acting on the ends of beater shafts 26. The device rotates with shaft 44 so that the beaters can only be released with the motor stopped.
GB36663/68A 1967-08-15 1968-08-01 Improvements in electric power tools Expired GB1214174A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66075767A 1967-08-15 1967-08-15
US73097268A 1968-04-25 1968-04-25

Publications (1)

Publication Number Publication Date
GB1214174A true GB1214174A (en) 1970-12-02

Family

ID=27098172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36663/68A Expired GB1214174A (en) 1967-08-15 1968-08-01 Improvements in electric power tools

Country Status (4)

Country Link
DE (1) DE1763815A1 (en)
FR (1) FR1576286A (en)
GB (1) GB1214174A (en)
NL (1) NL6811271A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2649878B2 (en) * 1976-10-29 1980-03-06 Kenwood Manufacturing Co. Ltd., London Household blender

Also Published As

Publication number Publication date
FR1576286A (en) 1969-07-25
DE1763815A1 (en) 1971-12-30
NL6811271A (en) 1969-02-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees