Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 1095
Hangei i praeticallj noise- strong that it carries the door farenough to give the lurk the propercontact. By merely revolving thewheel right or left, the spring tight-. us or loosens and accordingly the doori s quickly or slowly to suit condi- I inns. The Monarch Hangers are noiseless due to the… … nooperating devlci such as bars con-i he doors n hlch arc found on■ another g I feature of Importance i illy where automat Ic eliare used is the spring mechanism at- u ed i le i* eel making it possible tlj merely by start-ing then As generally known, the \ .ii i-1. \ .i tor i nis .i re not a i i ■…
Architecture · Building · Construction industry · Engineering
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