GB275504A - Improvements relating to portable tool holders - Google Patents

Improvements relating to portable tool holders

Info

Publication number
GB275504A
GB275504A GB572627A GB572627A GB275504A GB 275504 A GB275504 A GB 275504A GB 572627 A GB572627 A GB 572627A GB 572627 A GB572627 A GB 572627A GB 275504 A GB275504 A GB 275504A
Authority
GB
United Kingdom
Prior art keywords
clutch
shaft
lever
spring
driving
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
GB572627A
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.)
ROBERT WILLIAM JOHNSTON FLETCH
Original Assignee
ROBERT WILLIAM JOHNSTON FLETCH
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
Priority to BE349249D priority Critical patent/BE349249A/xx
Application filed by ROBERT WILLIAM JOHNSTON FLETCH filed Critical ROBERT WILLIAM JOHNSTON FLETCH
Priority to GB572627A priority patent/GB275504A/en
Publication of GB275504A publication Critical patent/GB275504A/en
Priority to FR650188D priority patent/FR650188A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0436—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by being contained in a generally closed space

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

275,504. Fletcher, R. W. J. March 1, 1927. Driving machines.-A holder adapted for driving tools such as drills, bits, rotary cutters, grinding and polishing wheels, &c., comprises a shaft 1 driven from a flexible shaft and carrying a clutch element 2 which is centred by the extension 3 in a driven clutch element 4 connected to the tool chuck 7 and mounted in ball-bearings 8. A spring 9 acting through a ball 11 normally tends to press the driving shaft upwards to disengage the clutch. A block 6 moving with the shaft 1 is engaged by the arm 14 of a pivoted lever 12 which has a spring extension carrying a brake shoe 16. When the operator holds the lever 12 against the body of the holder, as shown, the clutch parts are forced into engagement against the spring pressure and the block 16 is raised, while when the lever is released the clutch is automatically disengaged and the brake applied. Specification 244,218 is referred to.
GB572627A 1927-03-01 1927-03-01 Improvements relating to portable tool holders Expired GB275504A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE349249D BE349249A (en) 1927-03-01
GB572627A GB275504A (en) 1927-03-01 1927-03-01 Improvements relating to portable tool holders
FR650188D FR650188A (en) 1927-03-01 1928-02-29 Improvements to portable tool holders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB572627A GB275504A (en) 1927-03-01 1927-03-01 Improvements relating to portable tool holders

Publications (1)

Publication Number Publication Date
GB275504A true GB275504A (en) 1927-08-11

Family

ID=9801463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB572627A Expired GB275504A (en) 1927-03-01 1927-03-01 Improvements relating to portable tool holders

Country Status (3)

Country Link
BE (1) BE349249A (en)
FR (1) FR650188A (en)
GB (1) GB275504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747384A (en) * 1954-05-06 1956-05-29 Arthur P Beam Flexible extension attachment for electric drills

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747384A (en) * 1954-05-06 1956-05-29 Arthur P Beam Flexible extension attachment for electric drills

Also Published As

Publication number Publication date
BE349249A (en)
FR650188A (en) 1929-01-05

Similar Documents

Publication Publication Date Title
GB361145A (en) Multiple tool head for drilling, boring and like machine tools
GB275504A (en) Improvements relating to portable tool holders
GB455132A (en) Improvements in floor and the like polishing machines
GB239296A (en) Twist-drill grinding machine
US1649411A (en) Car-wheel-boring machine
GB189576A (en) Improvements in or relating to portable electrically driven combination tools
GB607603A (en) Stress limiting device for boring machines chiefly of the radial type
US2378838A (en) Burnishing tool
US2387128A (en) Tool
GB385995A (en) Improvements in or relating to abrading of shoe parts
US1253817A (en) Tapping and threading machine.
GB579456A (en) An improved hand-operated power-assisted machine for reaming and other cutting or working operations
GB510558A (en) Improvements relating to polishing mechanism
GB197396A (en) Improvements in or relating to transmission gearing for machine tools and other purposes
GB349272A (en) Improvements in or relating to devices for driving rotating tools such as screw-drivers, drills and the like
GB989278A (en) A machine tool for working on stone
US885020A (en) Sharpening or cutting machine.
GB261719A (en) Improvements in or relating to machines for drilling pearls or the like
GB308896A (en) Improvements in or relating to lathes and analogous machine tools
GB471298A (en) Improvements relating to horizontal boring and like machines
GB208210A (en) Improvements in hand and power drilling-machines
GB543213A (en) Improvements in hand drilling and like tools
GB414063A (en) Improvements in or relating to scouring, polishing and the like
GB191418397A (en) Improvements in or relating to Percussion Tools.
GB225961A (en) Improvements in or relating to combined drilling and grinding machines