Patented April 12, 1881.
10×10 Inch Octagon. For Floor Lights.
The Old Well-Known Knob-Protected Hyatt's Patent Tile.
7⁄8
Inch Thick. 1¾ Inch Lens.
Patented March 30, 1880.
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3 Inch Hexagon. For Floors, Skylights, Etc.
Octagon Lights. Lens, 5 Inches in Diameter.
Patent Prismatic Lenses.. For Throwing
Light at an Angle, thus Illuminating
rear parts of Basements.
Illuminating Vault Covers of all Sizes.
Bull's Eye, Knob Protected or Concrete.
Also all kinds of open or solid Cast
Iron Covers.
Jacob's Patent Wrought Iron Illuminating
Door and Roofing Plate.
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For Doors to cover Sidewalks,
Elevators, Areas,
Steps and Hatchways; for Fire and Burglar Proof
Illuminating Window Shutters; also, for Illuminating
Roofs. Is unexcelled for lightness, strength and
durability.
It is much lighter to handle
than the Cast-Iron
Illuminating Doors, and, unlike them, can not be broken
by the roughest usage.
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