The provisions of this chapter regulating nonresidential
uses shall be subject to such exceptions or modifications as herein
provided by the following supplementary regulations.
No public or private garage for more than five
motor vehicles shall have an entrance or exit for motor vehicles within
50 feet of a residential district.
Where a residential district is bounded by a
portion of a business district, any side street extending through
such residential district into such business district shall not be
used for any business purpose, except as herein set forth. The business
structure erected in said business district shall face and open upon
the street set aside for business purposes, except that show windows
in such business structure may be built and exposed upon said side
street within the area set aside as a part of such business district,
and an entrance may be made at the corner of such business and residential
streets, and all other entrances thereto must face on the business
street, except that entrances may be made from such residential street
to the upper stories of such business structure.