US1149208A - Glass structure. - Google Patents

Glass structure. Download PDF

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Publication number
US1149208A
US1149208A US38455407A US1907384554A US1149208A US 1149208 A US1149208 A US 1149208A US 38455407 A US38455407 A US 38455407A US 1907384554 A US1907384554 A US 1907384554A US 1149208 A US1149208 A US 1149208A
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United States
Prior art keywords
ribs
glass
glass structure
prisms
bands
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Expired - Lifetime
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US38455407A
Inventor
Otis A Mygatt
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Holophane Corp
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Holophane Corp
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Publication date
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Priority to US38455407A priority Critical patent/US1149208A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources

Definitions

  • the object of the present invention is to produce glassware which will appear in certain lights to be banded or'waved, although the body of the glass is not in itself banded or waved.
  • This object is attained by providing the glassware in one modification with ribs arranged in bands, each band consisting of ribs of varying projection. The variation in projection is obtained. by varying the curvature or angle of the ribs from.
  • each band he arranged synnnetrically with respect to those of the adjacent band.
  • my invention is applied to inclosures such as shades and re llcctors.
  • inclosures such as shades and re llcctors.
  • I cover the surface or surfaces thereoi With longitudinally extending ribs.
  • Fig. 1 a glass structure such as a dish, reflector or the like having a series of bands of prismatic ribs C on its outside. lnithis instance the prisms are disposed in bands, the order of the prism angles in each band being 120, 100 and 90 respectively. In this ex.-
  • the 90 rib transmits the smallest i amount of light and the 140 rib the greatest amount of light.
  • the angles of the respective prisms vary from 90 as a minimum to 140 as a maximum, and the light transmit ted varies accordingly.
  • Fig. 2 are illustrated on the inner side of a cylindrical inclosure prisms C similar to those shown in Fig. 1.
  • the outside of the cylinder may be provided with the reflecting prisms E.
  • the Well-known prismatic reflector is given a banded or waved appearance.
  • Fig. 3 the outer side of the structure is provided with varying sized lenticular ribs, the inside being smooth like that of Fig. 1.
  • Fig. 4- shows the application of the invention to an inclosure which is square in section and illustrates furthermore the application of the invention to polygonal structures in general.
  • ribs may extend partially or wholly around the structure.
  • a glass inclosure for artificial light having thereupon longitudinally extending bands composed of prisms each having a constant angle, the prism angles in certain bands increasing from a minimum to a maximum and then decreasing from a maximum to a inininuim.

Description

0. A M GATT. GLASS STRUCTURE. APPLICATION HLED JULY 95 1907- Patented Aug. 10, 1915.
WITNESS/5.5 [NI [INTO]? s'r rtrn' i Flt).
OTIS A. MYG-ATT, OF NEW YORK, N. Y., ASSIG-NOR T0 HOLOPHANE GLASS COMPANY, OF
NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.
GLASS STRUCTURE.
Specification of Letters Patent.
Patented new. to, 1915..
Application filed July 19, 1907. Serial No. 384,554.
Glass Structures, of which the following is a specification.
The object of the present invention is to produce glassware which will appear in certain lights to be banded or'waved, although the body of the glass is not in itself banded or waved. This object is attained by providing the glassware in one modification with ribs arranged in bands, each band consisting of ribs of varying projection. The variation in projection is obtained. by varying the curvature or angle of the ribs from.
a maximum to a minimum or vice versa. Although it is not essential to my invention, I prefer that the ribs of each band he arranged synnnetrically with respect to those of the adjacent band.
In its preferred form, my invention is applied to inclosures such as shades and re llcctors. In order to produce the waved or banded appearance on such an article I cover the surface or surfaces thereoi With longitudinally extending ribs.
Although my invention is not ,limited to ribs of any particular shape, I prefer, on account of the greater convenience in deter.- mining the optical properties thereof, that these ribs be prisms.
My invention will be more clearly understood by referring to the drawing,in whichl igure l. is a diagrammatic plan view showing a shade or reflector, a portion of which is provided with ribs according to my invention; Fig. 2 is a horizontal sectional diagram showing a modification thereof; and Figs. 3 and 4 are diagrams showing further modifications of my invention.
In Fig. 1 is shown a glass structure such as a dish, reflector or the like having a series of bands of prismatic ribs C on its outside. lnithis instance the prisms are disposed in bands, the order of the prism angles in each band being 120, 100 and 90 respectively. In this ex.-
ample the 90 rib transmits the smallest i amount of light and the 140 rib the greatest amount of light. The angles of the respective prisms vary from 90 as a minimum to 140 as a maximum, and the light transmit ted varies accordingly.
In Fig. 2 are illustrated on the inner side of a cylindrical inclosure prisms C similar to those shown in Fig. 1. The outside of the cylinder may be provided with the reflecting prisms E. By means of this structure the Well-known prismatic reflector is given a banded or waved appearance.
In Fig. 3, the outer side of the structure is provided with varying sized lenticular ribs, the inside being smooth like that of Fig. 1.
Fig. 4- shows the application of the invention to an inclosure which is square in section and illustrates furthermore the application of the invention to polygonal structures in general.
It is to be understood that in each of the examples given the ribs may extend partially or wholly around the structure.
Having described my invention, what I claim and desire to secure by Letters Patent of the United States is:
A glass inclosure for artificial light having thereupon longitudinally extending bands composed of prisms each having a constant angle, the prism angles in certain bands increasing from a minimum to a maximum and then decreasing from a maximum to a inininuim.
OTIS A. MYGATT.
lVitnesses l l5. Bacon, Iionnn'r KELLY, Jr.
US38455407A 1907-07-19 1907-07-19 Glass structure. Expired - Lifetime US1149208A (en)

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US38455407A US1149208A (en) 1907-07-19 1907-07-19 Glass structure.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930055A (en) * 1989-06-10 1990-05-29 Geisha Corporation Marker lamp with halo effect

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930055A (en) * 1989-06-10 1990-05-29 Geisha Corporation Marker lamp with halo effect

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