US413011A - Globe-protector for arc lamps - Google Patents

Globe-protector for arc lamps Download PDF

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Publication number
US413011A
US413011A US413011DA US413011A US 413011 A US413011 A US 413011A US 413011D A US413011D A US 413011DA US 413011 A US413011 A US 413011A
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Prior art keywords
globe
protector
plate
arc lamps
globes
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64FGROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00Ground or aircraft-carrier-deck installations
    • B64F1/18Visual or acoustic landing aids
    • B64F1/20Arrangement of optical beacons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V15/00Protecting lighting devices from damage
    • F21V15/02Cages

Definitions

  • the globes have generally a round openin g at the bottom of about four inches diameter, with a rim projecting downward, by which they are held in position on an iron plate attached to the frame which carries the lamp.
  • the top opening of the globe is generally larger, and through it can be placed a round plate of some transparent and indestructible materialas mica or its equivalent-and the plate having a circular opening in its center of about three and one-half inches diameter for the passage of one or two carbons through ing it, the outside and inside edges are bound 1 or strengthened by a thin plate of copper or other suitable material, and a light handle is attached to it, by which the plate can be lifted up from its place inside the globe, and by which it can be hung up or secured on a suitably-located hook or pin on the framing while the globe is being cleaned by the trimmer.
  • Figure 1 shows the globe-protector in two views.
  • P is the plate of transparent material; 0" r, the rim of metal to strengthen and stiffen the edges.
  • h is the handle attached-to the plate for easier handling the protector.
  • Fig. 2 shows the protector P in position on a lamp with two carbons.
  • Fig. 3 shows the plate in a lamp with single carbon.
  • the plate P need not in any way be fastened. It will rest y its own Weight in the required position.
  • the globe-protecting plate P with the metal binding-strips r r on the inside and outside rim 0" r, and handle 72,, for the purpose of strengthening the thin plate and facilitating the handling of the same during the cleaning process of the lamps, substantially as specified.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

(No Model.)
E G. ASMUS. GLOBE PROTECTOR FOR ARG LAMPS.
No; 413.011. Patented Oct. 15, 1889.
N PETERS. Pr-w-ww n mr, Washingiom 01c.
UNITED STATES PATENT OFFICE.
GUSTAV CARL ASMUS, OF CHICAGO, ILLINOIS.
GLOBE-PROTECTOR FOR ARC LAMPS.
SPECIFICATION forming part of Letters Patent No. 413,011, dated October 15, 1889.
Application filed February 28, 1889. Serial No. 300,967. (No model.)
To all whom it may concern.-
Be it known that I, GUSTAV CARL AsMUs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have inven ted a Globe-Protector for Electric-Arc Lamps; and I do hereby declare that the following is a full, clear, and exact description of the invention.
One of the greatest expenses to maintain street are lights is caused by the breaking of the glass globes. The intense heat produced by the are inside the globes and the dropping down of slag formed from the copper-coated carbons in a highly-liquid state on the lower part of the globes break the bottoms of the globes very easily and make them useless in a very short time. ire-netting has been placed around the globes to keep them from falling to pieces; but this does not protect them against cracking. As soon as a globe is broken on an arc lamp the current of air which will follow immediately will destroy the brilliancy of the light and cause the carbons to burn more quickly and uneven.
The globes have generally a round openin g at the bottom of about four inches diameter, with a rim projecting downward, by which they are held in position on an iron plate attached to the frame which carries the lamp. The top opening of the globe is generally larger, and through it can be placed a round plate of some transparent and indestructible materialas mica or its equivalent-and the plate having a circular opening in its center of about three and one-half inches diameter for the passage of one or two carbons through ing it, the outside and inside edges are bound 1 or strengthened by a thin plate of copper or other suitable material, and a light handle is attached to it, by which the plate can be lifted up from its place inside the globe, and by which it can be hung up or secured on a suitably-located hook or pin on the framing while the globe is being cleaned by the trimmer.
In the accompanying drawings, Figure 1 shows the globe-protector in two views. P is the plate of transparent material; 0" r, the rim of metal to strengthen and stiffen the edges. h is the handle attached-to the plate for easier handling the protector. Fig. 2 shows the protector P in position on a lamp with two carbons. Fig. 3 shows the plate in a lamp with single carbon.
Gris the glass globe; F, the frame; C, the carbons; P, the protecting-plate.
The plate P need not in any way be fastened. It will rest y its own Weight in the required position.
What I claim as my invention, and desire to secure by Letters Patent, is
The globe-protecting plate P,with the metal binding-strips r r on the inside and outside rim 0" r, and handle 72,, for the purpose of strengthening the thin plate and facilitating the handling of the same during the cleaning process of the lamps, substantially as specified.
GUSTAV CARL ASMUS.
Witnesses:
P. W. GERECKE, J onn LUNDITS.
US413011D Globe-protector for arc lamps Expired - Lifetime US413011A (en)

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US413011A true US413011A (en) 1889-10-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100298822A1 (en) * 2009-05-19 2010-11-25 Tyco Healthcare Group Lp Tissue Impedance Measurement Using a Secondary Frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100298822A1 (en) * 2009-05-19 2010-11-25 Tyco Healthcare Group Lp Tissue Impedance Measurement Using a Secondary Frequency

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