US65886A - Improvement in insulators foe telegraph wires - Google Patents
Improvement in insulators foe telegraph wires Download PDFInfo
- Publication number
- US65886A US65886A US65886DA US65886A US 65886 A US65886 A US 65886A US 65886D A US65886D A US 65886DA US 65886 A US65886 A US 65886A
- Authority
- US
- United States
- Prior art keywords
- shell
- insulators
- foe
- improvement
- lugs
- 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 title description 20
- 239000011521 glass Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 210000001699 lower leg Anatomy 0.000 description 6
- 229940108066 Coal Tar Drugs 0.000 description 2
- 239000011280 coal tar Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/14—Supporting insulators
- H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
Definitions
- Figure 2 is a similar view of an insulator that is to be attached to a cross-arm.
- Figure 31 s a horizontal sectional view of the insulator, the plane of section being indicated by the line 1/ 1.
- the object of this invention is-to provide an insulator for telegraph wires with a dead-air chamber by combining a wooden plug, a number of glass lugs, and a. wooden disk-in such a manner with a cast-iron shell that only a very small orifice is left around the pin-hook for the atmosphere to enter, and any moisture entering by that orifice will, by reason of the lower temperature of the iron shell, condense and settle thereon, leaving the wooden plug and the glass lugs very nearly in a. dry and non-conducting state.
- A represents in cast-iron cylindrical shell, open at the top, and with but a small orifice, a, at the bottom.
- grooves or guides I) b On the inside of the shell are provided grooves or guides I) b, in which four, more or less, glass lugs, B, are placed, and prevented from moving sideways, their lower ends resting on a flange, e. in the shell A.
- These glass lugs are made almost triangular, as shown in fig. 3, the outer corner being rounded, as shown. At their lower ends they are wider than at. the top.
- a conical wooden plug, 0, provided with four, more or less, grooves onits outside, is placed froin abov e into the shell, and the edges of the lugs B fit into the grooves in C, and the tapering form of the said lugs prevents the plug from being lowered beyond a certain mark.
- a pinhook, I D of usual construction, and, with a screw-shank, d, is placed from below through the orifice a into the side' ofthe cylinder A-.
- a. wooden circular: disk, E is placed from above over the shank of the pin-hook I).
- the pin-hook D is screwed into the plug until the disk E is held-between a flange, a, MD and the plug, so that its lower surface is held a little above the bottom of the shell.
- the shell A is provided with an iron sercw shank, ll, to be fastened directly to a pole, or to the side of a bullding
- the cover is screwed on the shell, or it is provided with grooves, whereby it is held on pins ff, projecting from the sides of the shell A, as shown-in fig. 1.
- the cover G can be made of sheet iron, and will beheld in'place' by forcing it against the top of the cavity into which the whole instrument is placed.
- this insulator When put together, this insulator should be dipped in asphalte or coal tar for the purpose of closing all crevices around the cover, and also for protecting the shell itself.
Landscapes
- Insulating Bodies (AREA)
Description
A. B. DAY. INSULATOR FOR TELEGRAPH WIRES.
No. 65,886. Patented June 18, 1867.
gnitrb gist rs gar-trot I @fftrr.
-ALFRED LB. DAY, OF GREEK, WISCONSIN.
Letters Patent No. 65,886, elated June 18, 1867.
IMPROVEMENT IN INSULATORS FOR TELEGRAPH WIRES.
dip Stimuli numb it in tlgtse idiots 53am :mh melting and at tip same.
TO ALL WHOM 1: Mar CONCERN:
Be itkno'wn that I, ALFRED ILDAY, of Oak Creek, in the .couut'y,.o.f.lllilwaukee, and State of Wisconsin, have. invented a ncw'and improved Insulator for Telegraph Wires; and I do hereby declare that the following is a. full, clear, and exact description thereof, which will enable those. skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in whieh- Figure 1 represent a vertical sectional view-of my improved shank insulator, the line a: re, fig. 3, indicating the plane of section.
Figure 2 is a similar view of an insulator that is to be attached to a cross-arm.
Figure 31s a horizontal sectional view of the insulator, the plane of section being indicated by the line 1/ 1. s-
Similar letters of reference indicate corresponding parts. I The object of this invention is-to provide an insulator for telegraph wires with a dead-air chamber by combining a wooden plug, a number of glass lugs, and a. wooden disk-in such a manner with a cast-iron shell that only a very small orifice is left around the pin-hook for the atmosphere to enter, and any moisture entering by that orifice will, by reason of the lower temperature of the iron shell, condense and settle thereon, leaving the wooden plug and the glass lugs very nearly in a. dry and non-conducting state.
A represents in cast-iron cylindrical shell, open at the top, and with but a small orifice, a, at the bottom.
On the inside of the shell are provided grooves or guides I) b, in which four, more or less, glass lugs, B, are placed, and prevented from moving sideways, their lower ends resting on a flange, e. in the shell A. These glass lugs are made almost triangular, as shown in fig. 3, the outer corner being rounded, as shown. At their lower ends they are wider than at. the top. A conical wooden plug, 0, provided with four, more or less, grooves onits outside, is placed froin abov e into the shell, and the edges of the lugs B fit into the grooves in C, and the tapering form of the said lugs prevents the plug from being lowered beyond a certain mark. A pinhook, I D, of usual construction, and, with a screw-shank, d, is placed from below through the orifice a into the side' ofthe cylinder A-. Before the lugs B or plug C are inserted into the shell, a. wooden circular: disk, E, is placed from above over the shank of the pin-hook I). When the plug C is placed between the lugs, the pin-hook D is screwed into the plug until the disk E is held-between a flange, a, MD and the plug, so that its lower surface is held a little above the bottom of the shell. -A glass lug, F', is then placed on top of the plug C, and the shell A is then closed with a cover, so that the said cover will come in contact with the glass knob F. Where the shell A is provided with an iron sercw shank, ll, to be fastened directly to a pole, or to the side of a bullding, the cover is screwed on the shell, or it is provided with grooves, whereby it is held on pins ff, projecting from the sides of the shell A, as shown-in fig. 1. But when the outside of the shell isprovidcd with a screw-thread, so that the same can be screwed into'a cross-head, I, as shown in fig. 2, then the cover G can be made of sheet iron, and will beheld in'place' by forcing it against the top of the cavity into which the whole instrument is placed.
By the aforesaid arrangement I obtain a very great surface for the dead-chamber, which will be almost an area of one hundred square inches in a full-size insulator. The dead-air chamber is entirely excluded from the atmosphere,.ex eept at the small orifice around the pin-hook. It is evident that any moisture entering by that orifice will, by reason of the lower temperature of the iron shell, condense and settle first on the said shell, leaving the wooden plug and glass lugs very nearlyin a dry and non-conducting stat But even assuming that all the moisture entering the chamber should condense evenly upon the whole surface of the chamber, it is improbable that, even in the longest storm, a sufficient quantity of moisture can accumulate to form the least escape.
When put together, this insulator should be dipped in asphalte or coal tar for the purpose of closing all crevices around the cover, and also for protecting the shell itself.
I claim as new, and desire to secure by Letters Patenty 1. The lugs 13 and 1*, made of glass or other suitable non-conducting material, in combination with the wooden plug C on the inside of the cast-iron cylinder A, all made and operating substantially as herein shown and described. l
2. So constructing the shell A that the cap G can be held down by the cross-head I when the insuletor is attached to the same, all as herein shown and described.
ALFRED B. DAY. W-itu essas Jams Moons, SAMUEL W. DAY.
Publications (1)
Publication Number | Publication Date |
---|---|
US65886A true US65886A (en) | 1867-06-18 |
Family
ID=2135412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US65886D Expired - Lifetime US65886A (en) | Improvement in insulators foe telegraph wires |
Country Status (1)
Country | Link |
---|---|
US (1) | US65886A (en) |
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0
- US US65886D patent/US65886A/en not_active Expired - Lifetime
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