The Nation's Schools, Količina 35Michael Vincent O'Shea McGraw Hill, 1945 |
Iz vsebine knjige
Zadetki 1–3 od 39
Stran 12
... doors nor wheezing of Checking Floor Hinges in corridors where Rixson's have been specified . These truly mod- ern checking floor hinges " float " the door closed , yet are delicately balanced to operate both easily and firmly ...
... doors nor wheezing of Checking Floor Hinges in corridors where Rixson's have been specified . These truly mod- ern checking floor hinges " float " the door closed , yet are delicately balanced to operate both easily and firmly ...
Stran 111
... Door Control E The illustration shows how the Norton rack and pinion principle gives the Norton Door Closer its even movement - how it prevents any surge or slam and eliminates strain on hinges and doors . Note how the rolling action of ...
... Door Control E The illustration shows how the Norton rack and pinion principle gives the Norton Door Closer its even movement - how it prevents any surge or slam and eliminates strain on hinges and doors . Note how the rolling action of ...
Stran 38
... door . " Miami " or movable blinds , in 4 inch wide sections allow for venti- lation , except where doors are pro- vided . A large storage space , primarily for textbooks , adjoins the principal's office . Storage space for athletic and ...
... door . " Miami " or movable blinds , in 4 inch wide sections allow for venti- lation , except where doors are pro- vided . A large storage space , primarily for textbooks , adjoins the principal's office . Storage space for athletic and ...
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