US476604A - Insulator-bracket - Google Patents
Insulator-bracket Download PDFInfo
- Publication number
- US476604A US476604A US476604DA US476604A US 476604 A US476604 A US 476604A US 476604D A US476604D A US 476604DA US 476604 A US476604 A US 476604A
- Authority
- US
- United States
- Prior art keywords
- shank
- bracket
- insulator
- head
- brady
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/32—Locking by means of a pawl or pawl-like tongue
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insulators (AREA)
Description
(No Model.)
T. H. BRADY.
INSULATOR BRACKET. No. 476,604. Patented June 7, 1892.
40 10 153W 4 My UNITED STATES PATENT OFFICE.
THOMAS H. BRADY, OF NEIV BRITAIN, CONNECTICUT.
INSULATORI-BRACKET.
' PECIFICATIOI\T forming part of Letters Patent No. 476,604, dated June '7, 1892.
Application filed April 9, 1892. Serial No. 428,532. (No model.)
T0 at whom it may concern:
Be it known that I, THOMAS H. BRADY, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Insulator-Brackets, of which the following is a specification.
My invention relates to that class of brackets which are adapted to be attached to the walls or roofs of buildings or other supports for holding electrical insulators, upon which the Wires of atelegraph, telephone, fire-alarm, or lighting system are to be strung, the object being to provide a cheap bracket of this class so constructed that in expanding orcontracting under the influence of the natural changes in temperature or effect of sunlight it will not break or crack the glass, porcelain, lava, or other insulating substance which it supports.
In the accompanying drawings, Figure 1 is a side view of a bracket, and an insulator is indicated by broken lines. Fig. 2 isacentral vertical section, and Fig. 3 is a horizontal section of the same on the line 0c 0:, Fig. 1.
In the views, 1 indicates the shank of the bracket, which is usually formed from a piece of round rolled or drawn iron rod, with one end flattened or perforated for the reception of holding-screws. The head of this bracket,
which is a thin-walled shell 2, usually made of cast-iron, has a threaded exterior, upon which the insulator 3, of common form, is
screwed, and a central perforation, so that it may he slipped upon the end of the shank, to which it is riveted or soldered. This perforation at the ends of the shell is ofasize that fits the shank; but it is enlarged at the center, so that an air chamber or spaces is formed on the interior between the shank and the threaded shell or headof thebracket. Openings 5 may, if desired, be made through the side walls of this shell from the chamber to the exterior.
I claim as my invention 1. An insulator bracket consisting of a shank and a hollow head secured to the shank, with an interior space between the shank and head, substantially as (l6SCllbG(.l,tl1(l for the purpose specified.
2. An insulatorbracket consisting of a shank and a threaded hollow head secured to the shank, with an interior space between the shank and head, substantially as described, and for the purpose specified.
3. Au insulator bracket consisting of a shank and a hollow head secured to the shank, with an interior space between the shank and head and openings through the walls of the head, substantially as described, and for the purpose specified.
THOMAS II. BRADY.
Witnesses:
BRAYTON S. LEwIs, JOHN H. KIRKHAM.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US476604A true US476604A (en) | 1892-06-07 |
Family
ID=2545459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US476604D Expired - Lifetime US476604A (en) | Insulator-bracket |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US476604A (en) |
-
0
- US US476604D patent/US476604A/en not_active Expired - Lifetime
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