Improvements in and relating to Dampers for Ventilating Systems

申请公布号：GB1197023(A)

申请号：GB19680016192

申请日期：1968.04.04

申请公布日期：1970.07.01

申请人：

ROYAIR LIMITED

发明人：FREDERICK ROY HOLFORD

分类号：F24F13/14;F24F13/15

主分类号：F24F13/14

Vehicle engine heat exchanger - has row of liq. carrying tubes with max. internal dia. of 6.7 mm.

Prefabricated concrete cellar wall slab - has interlocking edge groove and tongue with matching inclined sides

IC engine selective valve interrupting system - has toothed sleeve acting against toothed thrust member to deactivate cam drive

Multiplex control of liquid crystal displays - has matrix with rows and columns to which different pulse voltages are applied

Spectacle lens cleaning instrument - has two adaptable wipers contained in closable housing and capable of being extended from and retracted into housing

Self braking castor support for furniture - has moulded plastics floating axle pivoted under mounting shaft

Rotary piston IC engine - has combustion chambers symmetrically arranged within piston to give even turning moment

IC engine selective valve interrupting system - has toothed sleeve acting against toothed thrust member to deactivate cam drive

Appts. for removing dust from fabric filters - comprises loudspeaker mounted in partition between filter chamber and open resonance chamber

Mowing machine for river banks - has head carried by radio-controlled vehicle which can include floats for amphibious use

Milking machine feed line switching device - has hand lever operated spindle with squeeze rollers opening and closing tubes

2,5-DIKETOGLUKONIK ASIDIN INDIRGENMESI

RUNDTISCHANTRIEB

RADIALREIFEN

STEROIDSPIROOXAZOLIDINONDERIVATE, VERFAHREN ZU DEREN HERSTELLUNG UND DIESE ENTHALTENDE ARZNEIMITTEL

AUTOINDUKTIVE ELEKTROMAGNETISCHE PUMPE UND AUTOINDUKTIVER DIREKTKONVERTER FUER LEITENDE FLUESSIGKEITEN INSBESONDERE FLUESSIGE METALLE

PRODUCTION OF HIGH BULK SPUN YARN

UNMANNED VEHICLE SYSTEM

ELECTRODEPOSITION COATING

ROHRZIEHMASCHINE