US458221A - Insulator - Google Patents
Insulator Download PDFInfo
- Publication number
- US458221A US458221A US458221DA US458221A US 458221 A US458221 A US 458221A US 458221D A US458221D A US 458221DA US 458221 A US458221 A US 458221A
- Authority
- US
- United States
- Prior art keywords
- insulator
- enlargements
- sections
- cylinder
- parts
- 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 14
- 238000009413 insulation Methods 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/385—Means for mechanical fixation of the brush holder
- H01R39/386—Electrically insulated bolts
Definitions
- a A are rings upon the end pieces I3 B.
- Each end piece is provided with an enlargement or collar or nut C, which may be screwthreaded to such end piece or made continuous therewith and secured thereto in any desired manner.
- D is a body of insulation which separates and surrounds the parts, substantially as indicated in the figures.
- E is a binding-wire, which may be employed to secure together the parts of which the coupling or coupling-cylinder is composed.
- This cylinder is marked F, and may be composed of semi-cylindrical sections G G or smaller sections H H, and the sections may be provided at each end with the projecting portions or end pieces K K, leaving the central aperture L L between them, through which the end piece B may pass.
- the body of the cylinder F is made of a single piece, the projecting ends of the sections would assume the form of disks M with apertures O. One end would then be screw-threaded onto the other, as indicated in Fig. 3, at the point I).
- the end pieces with their enlargements C C are insulated within such cylinder or cylindrical portion and held in the position indicated in Fig. l, the overhanging projections K K or disks M M being opposed to the enlargements C C, as indicated in Fig. 1.
- Fig. 2 Fig. 3 is a detail of the Fig. et is a cross-section of the binding-wire E secures the sections together, if sections are used.
- My invention is designed to furnish a suitable insulator for supporting electric wires, and particularly for the purpose of supporting bare wires used in street-railway work at the point where they pass about curves.
- One end of the insulator is made 6o fast to a suitable stay and the other is secured to the wire, and thus when the wire is drawn tight the insulator must resist considerable force tending to separate its two ends.
- On each of these ends or end pieces is formed an enlargement, and are inclosed to be held by end coupling-pieces, which have also projecting ends.
- Insulation is then interposed between the enlargements of the end pieces and the projecting ends of the coupling-pieces, so 7o that when the force is exerted it is expended on a body of insulation lying between parts which tend to move in opposite directions toward and facing each other.
- these couplingpieces are formed in a continuous cylinder with projecting ends, as hereinbefore suggested, or preferably in sections forming a more or less complete cylinder, and are then wrapped together by a 8o binding-wire after the enlargements on the ends have been placed in position within such cylinder.
- the preferable way of reaching this result is by placing the parts thus in position and then placing a vulcanizable compound in and about the whole and then vulcanizing such compound in position.
- I claim- 1 An insulator consisting of two project.- ing metallic ends with enlargements, and a 9o cylindrical coupling-piece with inward-projecting ends within which lie the enlargements and interposed insulation.
- An insulator consisting' of two projecting metallic ends with enlargements, and a cylindrical coupling-piece with inward-projecting ends within which lie the enlargements and interposed insulation, said cylindrical portions composed of sections and a binding to secure the same together.
- An insulator consisting of two projecting metallic ends with enlargements, acylin- IOO tion about and between the parts, so that when pressure is applied to the end pieces to draw them in opposite directions they are held together, and such pressure is applied I5 on a body of insulation between parts which tend to move in opposite directions.
Description
(No Model.)
M. C. CHASE.
INSULATOR. 110.458,221. Patented Aug. .25, 1891.
. Virt I 'al Y', l
we onus venu co., mrmrmo., wAsnmawu D c UNITED STATES PATENT OFFICE.
MURREY C. CHASE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ELECTRICAL SUPPLY COMPANY, OF ILLINOIS.
INSULATOR.
SPECIFICATION forming part of Letters Patent No. 458,221, dated August 25, 1891.
Application filed November 14, 1890. Serial No. 371,394. (No model.)
' wherein- Figure 1 is a longitudinal section. is a cross-section. modification. modification.
Like parts are indicated by same letters in all figures.
A A are rings upon the end pieces I3 B. Each end piece is provided with an enlargement or collar or nut C, which may be screwthreaded to such end piece or made continuous therewith and secured thereto in any desired manner.
D is a body of insulation which separates and surrounds the parts, substantially as indicated in the figures.
E is a binding-wire, which may be employed to secure together the parts of which the coupling or coupling-cylinder is composed. This cylinder is marked F, and may be composed of semi-cylindrical sections G G or smaller sections H H, and the sections may be provided at each end with the projecting portions or end pieces K K, leaving the central aperture L L between them, through which the end piece B may pass. If the body of the cylinder F is made of a single piece, the projecting ends of the sections would assume the form of disks M with apertures O. One end would then be screw-threaded onto the other, as indicated in Fig. 3, at the point I). In either case the end pieces with their enlargements C C are insulated within such cylinder or cylindrical portion and held in the position indicated in Fig. l, the overhanging projections K K or disks M M being opposed to the enlargements C C, as indicated in Fig. 1. When the whole has been placed in position,
Fig. 2 Fig. 3 is a detail of the Fig. et is a cross-section of the binding-wire E secures the sections together, if sections are used.
The use and operation of myinvention are as follows: My invention is designed to furnish a suitable insulator for supporting electric wires, and particularly for the purpose of supporting bare wires used in street-railway work at the point where they pass about curves. One end of the insulator is made 6o fast to a suitable stay and the other is secured to the wire, and thus when the wire is drawn tight the insulator must resist considerable force tending to separate its two ends. On each of these ends or end pieces is formed an enlargement, and are inclosed to be held by end coupling-pieces, which have also projecting ends. Insulation is then interposed between the enlargements of the end pieces and the projecting ends of the coupling-pieces, so 7o that when the force is exerted it is expended on a body of insulation lying between parts which tend to move in opposite directions toward and facing each other. In order that there may be no tendency of these couplingpieces to move laterally, they are formed in a continuous cylinder with projecting ends, as hereinbefore suggested, or preferably in sections forming a more or less complete cylinder, and are then wrapped together by a 8o binding-wire after the enlargements on the ends have been placed in position within such cylinder. The preferable way of reaching this result is by placing the parts thus in position and then placing a vulcanizable compound in and about the whole and then vulcanizing such compound in position.
I claim- 1. An insulator consisting of two project.- ing metallic ends with enlargements, and a 9o cylindrical coupling-piece with inward-projecting ends within which lie the enlargements and interposed insulation.
2. An insulator consisting' of two projecting metallic ends with enlargements, and a cylindrical coupling-piece with inward-projecting ends within which lie the enlargements and interposed insulation, said cylindrical portions composed of sections and a binding to secure the same together.
3. An insulator consisting of two projecting metallic ends with enlargements, acylin- IOO tion about and between the parts, so that when pressure is applied to the end pieces to draw them in opposite directions they are held together, and such pressure is applied I5 on a body of insulation between parts which tend to move in opposite directions.
MURREY C. CHASE.
Witnesses:
CELESTE P. CHAPMAN, HARRIET M. DAY.
Publications (1)
Publication Number | Publication Date |
---|---|
US458221A true US458221A (en) | 1891-08-25 |
Family
ID=2527096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US458221D Expired - Lifetime US458221A (en) | Insulator |
Country Status (1)
Country | Link |
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US (1) | US458221A (en) |
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- US US458221D patent/US458221A/en not_active Expired - Lifetime
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