US311521A - William b - Google Patents
William b Download PDFInfo
- Publication number
- US311521A US311521A US311521DA US311521A US 311521 A US311521 A US 311521A US 311521D A US311521D A US 311521DA US 311521 A US311521 A US 311521A
- Authority
- US
- United States
- Prior art keywords
- pipe
- telegraph
- tube
- jacket
- insulating substance
- 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
- 239000000126 substance Substances 0.000 description 14
- 239000004020 conductor Substances 0.000 description 10
- 238000009954 braiding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000004804 winding Methods 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
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/04—Cables with twisted pairs or quads with pairs or quads mutually positioned to reduce cross-talk
Definitions
- My invention relates to flexible telegraphcables in which a core of insulated conductors is drawn into a tube and protected by an insulating substance forced in hot among the conductors.
- My invention herein relates to the loose braiding or jacket which I place about the elastic tubes to preventthe internal pressure of the hot insulating substance as it is forced in from bursting the pipe.
- My invention herein also relates to winding a serving about the jacket after the pipe has shrunk, so as to further strengthen the covering and prevent the pipe from expanding to any great extent in case the insulating substance should become warm or hot.
- FIG. 1 is a 1ongitudinal sectional View of a telegraph-cable embodying my improvements.
- Fig. 2 is a transverse vertical section thereof.
- the core a may consist of any number of separately-insulated conductors.
- the tube b is ot' rubber or other elastic material.
- the jacket c is braided loosely about the pipe, so as to allow the pipe to expand only to a limited extent. As the paratne or other insulating material shrinks in cooling, the pipe also shrinks. After the pipe has shrunk l tightly wind about thejacket a serving, d, of strong tape or cord, thus strengthening the covering and holding'the jacket and pipe in place.
- I claim- 1 The combination, with the rubber tube placed about the core of a telegraph-cable, of the paraftine filling,aud thejacket c, braided loosely about the pipe, whereby the expansion of the tube is limited, substantially as and for the purpose specified.
- the telegraph-cable which consists ofthe combination, with an elastic tube, of acore of insulated conductors and the paraiine lling, substantially as shown and described.
Description
W. R. PATTERSON.
(No Model.)
TELEGRAPH CABLE.
Patented Feb. 3, 1885.
Ma/eww,
UNITED STATES PATENT OFFICE.
WILLIAM R. PATTERSON, OF CHICAGO, ILLINOIS, ASSIGNOB TO THE WESTERN ELECTRIC COMPANY, OF SAME PLACE.
TELEGRAPH-CABLE.
SPECIFICATION forming part of Letters Patent No. 311,521, dated February 3, 1885.
Application filed September 22, 1884. (No model.)
To all whom it may concern:
Be it known that I, WILLIAM R. PATTER- soN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Telegraph-Cables, (Case 41,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specilication.
My invention relates to flexible telegraphcables in which a core of insulated conductors is drawn into a tube and protected by an insulating substance forced in hot among the conductors.
Heretofore lead pipes have been used in the manufacture of telegraph-cables; but cables having lead-pipe coverings are very heavy, especially for aerial uses. Rubber tubes have also been used to protect the cores of aerial cables; but no attempt has been made to lill the interstices among the conductors with an insulating substance for the purpose of preventing moisture from penetrating to the wires in case the tube proves defective, prior to my invention.
ln my application No. 134,333, (Case 332)/ filed June 9, 1883, of which this case is a division, I have claimed the method which consists in surrounding the core with an elastic pipe and forcing therein a melted insulating substance and allowing the insulating substance to cool within the elastic pipe.
My invention herein relates to the loose braiding or jacket which I place about the elastic tubes to preventthe internal pressure of the hot insulating substance as it is forced in from bursting the pipe.
My invention herein also relates to winding a serving about the jacket after the pipe has shrunk, so as to further strengthen the covering and prevent the pipe from expanding to any great extent in case the insulating substance should become warm or hot.
My invention is illustra-ted in the accompanying drawings, in which Figure 1 is a 1ongitudinal sectional View ofa telegraph-cable embodying my improvements. Fig. 2 is a transverse vertical section thereof.
The core a, may consist of any number of separately-insulated conductors. The tube b is ot' rubber or other elastic material. The jacket cis braided loosely about the pipe, so as to allow the pipe to expand only to a limited extent. As the paratne or other insulating material shrinks in cooling, the pipe also shrinks. After the pipe has shrunk l tightly wind about thejacket a serving, d, of strong tape or cord, thus strengthening the covering and holding'the jacket and pipe in place.
I claim- 1. The combination, with the rubber tube placed about the core of a telegraph-cable, of the paraftine filling,aud thejacket c, braided loosely about the pipe, whereby the expansion of the tube is limited, substantially as and for the purpose specified.
2. The combination, with the core of insulated iicxible wires, of an elastic tube, a filling of insulating substance, the loose jacket, and the strong serving about the jacket, closely Wound, as described.
3. The telegraph-cable which consists ofthe combination, with an elastic tube, of acore of insulated conductors and the paraiine lling, substantially as shown and described.
In witness whereof I hereunto subscribe my naine this 1st day of September, A. D. 1884.
VILLIAM It. PATTERSON.
Vitnesses:
GEORGE P. BARTON, HARRISON P. NIoHoLs.
Publications (1)
Publication Number | Publication Date |
---|---|
US311521A true US311521A (en) | 1885-02-03 |
Family
ID=2380679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US311521D Expired - Lifetime US311521A (en) | William b |
Country Status (1)
Country | Link |
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US (1) | US311521A (en) |
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0
- US US311521D patent/US311521A/en not_active Expired - Lifetime
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