Sufficient return movement is however permitted to ensure that the brake shoes do not bind on the brake drums. It follows that the pistons which act on the brake shoes are thereby kept automatically in positions at which only a limited degree of movement is required for the brake shoes to be effectively actuated. However this movement can take place only to a limited extent which is determined by the axial play between the first end 42 and the slot 40. When the hydraulic pressure is released, a return spring (not shown), which is external to the cylinder and which is conventionally engaged with the brake shoes, acts to move the pistons towards one another. When the brake cylinder is internally pressurized by means of hydraulic fluid, and this takes place in a conventional way, the pistons are forced apart, with the catches 34 riding over the toothed surfaces 56.
F16D65/14- Actuating mechanisms for brakes Means for initiating operation at a predetermined position.F16D- COUPLINGS FOR TRANSMITTING ROTATION CLUTCHES BRAKES.
F16- ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS THERMAL INSULATION IN GENERAL.F- MECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING.238000006467 substitution reaction Methods 0.000 description 1.238000004519 manufacturing process Methods 0.000 description 1.229910000639 Spring steel Inorganic materials 0.000 description 2.230000015572 biosynthetic process Effects 0.000 claims description 6.Application granted granted Critical Publication of US5497859A publication Critical patent/US5497859A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links 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 ZA93/6826 priority Critical Priority to ZA936826 priority Application filed by Nowosielski Johann A. Priority date (The priority date is an assumption and is not a legal conclusion. Nowosielski Original Assignee Nowosielski Johann A. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US08/305,380 Inventor Johann A.
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Google Patents Hydraulic slack adjusterĭownload PDF Info Publication number US5497859A US5497859A US08/305,380 US30538094A US5497859A US 5497859 A US5497859 A US 5497859A US 30538094 A US30538094 A US 30538094A US 5497859 A US5497859 A US 5497859A Authority US United States Prior art keywords piston bore cylinder hydraulic elongated bar Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5497859A - Hydraulic slack adjuster
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