Adjuster for drum brakes
An automatic adjuster for an internal shoe drum brake having a strut (not shown) extending between the shoes (11) includes an adjustment element (22) with an edge (24) against which one end of the strut abuts, adjustment of the element (22) maintaining the appropriate clearance between the brake sho...
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| creator | KENNETH MAURICE QUINEY |
| description | An automatic adjuster for an internal shoe drum brake having a strut (not shown) extending between the shoes (11) includes an adjustment element (22) with an edge (24) against which one end of the strut abuts, adjustment of the element (22) maintaining the appropriate clearance between the brake shoes (11) and the drum. The adjustment element (22) has a portion (26) screw-threadedly engaged with a ratchet wheel (29). A pawl assembly (30, 36), associated so with said ratchet wheel (29), moves tangentially with respect to the ratchet wheel (29) as the brake shoes (11) move upon service braking, so that if movement of the brake shoes (11) is in excess of a predetermined amount, a pawl formation (38) will engage a tooth (57) of the ratchet wheel (29) to rotate the ratchet wheel (29) and adjust the adjustment element (22). A temperature sensitive element (60) is provided to vary the ratio of movement of the pawl assembly (30, 36) to movement of the brake shoes (11), so that as the temperature increases the ratio decreases. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_GB2194300A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>GB2194300A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_GB2194300A3</originalsourceid><addsrcrecordid>eNrjZJBwTMkqLS5JLVJIyy9SSCkqzVVIKkrMTi3mYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXx7k5GhpYmxgYGjsaEVQAAX-shKg</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Adjuster for drum brakes</title><source>esp@cenet</source><creator>KENNETH MAURICE QUINEY</creator><creatorcontrib>KENNETH MAURICE QUINEY</creatorcontrib><description>An automatic adjuster for an internal shoe drum brake having a strut (not shown) extending between the shoes (11) includes an adjustment element (22) with an edge (24) against which one end of the strut abuts, adjustment of the element (22) maintaining the appropriate clearance between the brake shoes (11) and the drum. The adjustment element (22) has a portion (26) screw-threadedly engaged with a ratchet wheel (29). A pawl assembly (30, 36), associated so with said ratchet wheel (29), moves tangentially with respect to the ratchet wheel (29) as the brake shoes (11) move upon service braking, so that if movement of the brake shoes (11) is in excess of a predetermined amount, a pawl formation (38) will engage a tooth (57) of the ratchet wheel (29) to rotate the ratchet wheel (29) and adjust the adjustment element (22). A temperature sensitive element (60) is provided to vary the ratio of movement of the pawl assembly (30, 36) to movement of the brake shoes (11), so that as the temperature increases the ratio decreases.</description><edition>4</edition><language>eng</language><subject>BLASTING ; BRAKES ; CLUTCHES ; COUPLINGS FOR TRANSMITTING ROTATION ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>1988</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880302&DB=EPODOC&CC=GB&NR=2194300A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880302&DB=EPODOC&CC=GB&NR=2194300A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KENNETH MAURICE QUINEY</creatorcontrib><title>Adjuster for drum brakes</title><description>An automatic adjuster for an internal shoe drum brake having a strut (not shown) extending between the shoes (11) includes an adjustment element (22) with an edge (24) against which one end of the strut abuts, adjustment of the element (22) maintaining the appropriate clearance between the brake shoes (11) and the drum. The adjustment element (22) has a portion (26) screw-threadedly engaged with a ratchet wheel (29). A pawl assembly (30, 36), associated so with said ratchet wheel (29), moves tangentially with respect to the ratchet wheel (29) as the brake shoes (11) move upon service braking, so that if movement of the brake shoes (11) is in excess of a predetermined amount, a pawl formation (38) will engage a tooth (57) of the ratchet wheel (29) to rotate the ratchet wheel (29) and adjust the adjustment element (22). A temperature sensitive element (60) is provided to vary the ratio of movement of the pawl assembly (30, 36) to movement of the brake shoes (11), so that as the temperature increases the ratio decreases.</description><subject>BLASTING</subject><subject>BRAKES</subject><subject>CLUTCHES</subject><subject>COUPLINGS FOR TRANSMITTING ROTATION</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJBwTMkqLS5JLVJIyy9SSCkqzVVIKkrMTi3mYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXx7k5GhpYmxgYGjsaEVQAAX-shKg</recordid><startdate>19880302</startdate><enddate>19880302</enddate><creator>KENNETH MAURICE QUINEY</creator><scope>EVB</scope></search><sort><creationdate>19880302</creationdate><title>Adjuster for drum brakes</title><author>KENNETH MAURICE QUINEY</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2194300A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1988</creationdate><topic>BLASTING</topic><topic>BRAKES</topic><topic>CLUTCHES</topic><topic>COUPLINGS FOR TRANSMITTING ROTATION</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>KENNETH MAURICE QUINEY</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KENNETH MAURICE QUINEY</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Adjuster for drum brakes</title><date>1988-03-02</date><risdate>1988</risdate><abstract>An automatic adjuster for an internal shoe drum brake having a strut (not shown) extending between the shoes (11) includes an adjustment element (22) with an edge (24) against which one end of the strut abuts, adjustment of the element (22) maintaining the appropriate clearance between the brake shoes (11) and the drum. The adjustment element (22) has a portion (26) screw-threadedly engaged with a ratchet wheel (29). A pawl assembly (30, 36), associated so with said ratchet wheel (29), moves tangentially with respect to the ratchet wheel (29) as the brake shoes (11) move upon service braking, so that if movement of the brake shoes (11) is in excess of a predetermined amount, a pawl formation (38) will engage a tooth (57) of the ratchet wheel (29) to rotate the ratchet wheel (29) and adjust the adjustment element (22). A temperature sensitive element (60) is provided to vary the ratio of movement of the pawl assembly (30, 36) to movement of the brake shoes (11), so that as the temperature increases the ratio decreases.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | esp@cenet |
| subjects | BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS |
| title | Adjuster for drum brakes |
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