GB327258A - Improvements in brake mechanism - Google Patents

Improvements in brake mechanism

Info

Publication number
GB327258A
GB327258A GB692829A GB692829A GB327258A GB 327258 A GB327258 A GB 327258A GB 692829 A GB692829 A GB 692829A GB 692829 A GB692829 A GB 692829A GB 327258 A GB327258 A GB 327258A
Authority
GB
United Kingdom
Prior art keywords
shoes
brake
rod
wear
levers
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
GB692829A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB692829A priority Critical patent/GB327258A/en
Publication of GB327258A publication Critical patent/GB327258A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

327,258. Mair, J. March 4, 1929. Compensating for wear; applied by springs; electric and magnetic; indicators, applications of. -In an automatic device for adjusting brake shoes relatively to the levers or other moving supports on which they are mounted, so as to compensate for wear of the shoes, the levers or straps 3 carrying the shoes 2 and pivoted at 4 have arranged therein rods 11, 12 provided with wedges 10 against which the shoes are held by springs 15. A ratchet nut 16 on the rod 11 held by a spring 17 against a surface on one of the levers 3 to prevent axial movement of the nut is engaged by a pawl 19 on a bar 20 connected to the other lever 3. If during an application of the brake, sufficient wear has taken place, the pawl 19 slips over a tooth of the ratchet nut and during the release movement, the ratchet is thus turned moving the rod 11 and wedge 10 thereon downwardly to displace the shoe towards the drum 1. The movement of the rod 11 is transmitted to the rod 12 associated with the other shoe by bell-cranks 13 on the pivots 4 and a bar 14. The brake shown is of the type in which the brake is applied by springs 5 and held off by a magnet 6. A spring 7 acting on one strap 3 biases the system so as to hold a stop 8 on the other strap against, a fixed abutment when the brake is released to ensure that both shoes are clear of the drum. The bar 14 may be arranged to actuate a switch 21 to operate a warning device or to cut off the power supply to the magnet 6 when the wear of the shoes has reached a predetermined limit.
GB692829A 1929-03-04 1929-03-04 Improvements in brake mechanism Expired GB327258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB692829A GB327258A (en) 1929-03-04 1929-03-04 Improvements in brake mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB692829A GB327258A (en) 1929-03-04 1929-03-04 Improvements in brake mechanism

Publications (1)

Publication Number Publication Date
GB327258A true GB327258A (en) 1930-04-03

Family

ID=9823400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB692829A Expired GB327258A (en) 1929-03-04 1929-03-04 Improvements in brake mechanism

Country Status (1)

Country Link
GB (1) GB327258A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022433B (en) * 1954-11-27 1958-01-09 Demag Ag External shoe brake
DE1027942B (en) * 1953-07-28 1958-04-10 Kloeckner Humboldt Deutz Ag Pressurized shoe brake, especially flywheel brake for marine internal combustion engines
GB2186041A (en) * 1986-01-29 1987-08-05 Torvale Transmissions Brakes
DE102005019593A1 (en) * 2005-04-27 2006-11-02 Volkswagen Ag Drum brake with automatic air clearance adjustment, has wedge bolt supported relative to piston of wheel brake cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027942B (en) * 1953-07-28 1958-04-10 Kloeckner Humboldt Deutz Ag Pressurized shoe brake, especially flywheel brake for marine internal combustion engines
DE1022433B (en) * 1954-11-27 1958-01-09 Demag Ag External shoe brake
GB2186041A (en) * 1986-01-29 1987-08-05 Torvale Transmissions Brakes
GB2186041B (en) * 1986-01-29 1989-10-25 Torvale Transmissions Brakes
DE102005019593A1 (en) * 2005-04-27 2006-11-02 Volkswagen Ag Drum brake with automatic air clearance adjustment, has wedge bolt supported relative to piston of wheel brake cylinder

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