US599493A - Strain-insulator - Google Patents
Strain-insulator Download PDFInfo
- Publication number
- US599493A US599493A US599493DA US599493A US 599493 A US599493 A US 599493A US 599493D A US599493D A US 599493DA US 599493 A US599493 A US 599493A
- Authority
- US
- United States
- Prior art keywords
- cement
- insulating
- pieces
- strain
- metal
- 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
- 239000012211 strain insulator Substances 0.000 title description 6
- 239000004568 cement Substances 0.000 description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- 229910052742 iron Inorganic materials 0.000 description 14
- 239000000377 silicon dioxide Substances 0.000 description 12
- 150000002739 metals Chemical class 0.000 description 6
- 230000004907 flux Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 210000000887 Face Anatomy 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001066 destructive Effects 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 150000003112 potassium compounds Chemical class 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 150000003388 sodium compounds Chemical class 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000004328 sodium tetraborate Substances 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
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/12—Special features of strain insulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/924—Coupled nut and bolt
- Y10S411/929—Thread lock
- Y10S411/93—Flowing metal or settable material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
Definitions
- This invention relates to the insulation of metallic fittings and appliances for use with electric currents and other purposes of great utility.
- My invention provides the means and materials, as are herein set'forth,whereby metals can be cemented together with a cement of great tenacity and which will resist electric currents of the highest electromotive forces, and this cement will resist the extremes of heat and cold. It is unaffected by the most destructive acids,excepting hydrofluoric, and it is not attacked by any gases or the atmosphere, and consequently it is very durable.
- FIG. 1 and 2 are respectively front and sectional views showing two pieces of metal, as iron, one-eighth of an inch thick, more or less, stamped out with an eye at one end and laid and held the one upon the other with insulating-cement between them.
- Fig. 3 is a sectional view showing the cement and two pieces of metal, whereof one is corrugated.
- Fig. 4 is a similar view showing both of the metallic pieces corrugated.
- Fig. 5 is a sectional view showing an electric appliance constructed of two pieces of iron fitted together with the insulating-cement between them; and
- Fig. 6 is a sectional view illustrating an electric fitting comprising two metallic pieces or parts respectively threaded and screwed together and having the cement interposed between their threaded portions.
- Figs. 1 and 2 show two pieces a and a of sheet-iron an eighth of an inch thick, more or'less, stamped out with an eye at one end, and one piece is laid and held upon the other with the insulating-cement 1) between them.
- the insulating-cement may be of a thickness of not more than one-sixteenth of an inch.
- These two pieces of metal may be cuttings from ordinary sheet-iron, with plane surfaces, and the tensile strength of the insulatingcement, hereinafter described, is capable of resisting a tensile strain of more than one thousand pounds to each square inch of surface, and tests of the electric resistance of the insulating-cement have shown that it exceeds one million ohms.
- Fig. 8 shows two pieces of sheet iron or metal a and a with one piece,a ,corrugated and the other,a',with a plane surface.
- Z) in these figures shows the insulating-cement.
- Fig. 4 both pieces a and of of sheet metal are corrugated, and b is the cement.
- This insulating-cement can be applied also to other electric fittings.
- Fig. 5 shows an electric appliance made of two pieces of iron a and a
- the part a is provided with a round cavity in its center of one and oneeighth inches diameter and one and one-eighth inches in depth, more or less.
- the other piece, (6 is in the form of a plug, and its depth is one inch and its diameter is one inch, more or less, and there is a space of one-sixteenth of an inch, more or less, for the insulatingcement Z).
- the superficial area of the cement in the device last above described exceeds three inches, and the tensile strength of this appliance has been ascertained by experiment to exceed three thousand pounds and its electric resistance to exceed one million ohms.
- Fig. 6 shows parts a and c0 threaded and screwed together, with the insulating material between the threads and each of these parts provided with an eye.
- the electric insulating-cement b of this invention is composed of silica, which may be obtained by the calcination of flint, and the best results are obtained by the employment of pure silica. However, good results may be obtained when alumina, which is generally found with silica, does not exceed fifteen per cent., more or less, and it is more tenacious when it is free from metallic oxids, such as the oXids of calcium, iron, and manganese.
- the silica may be first fused by the employment of an alkaline or other flux such as borax, pearlash, or soda-ash, or other sodium or potassium compounds.
- Silica is taken in proportion of one hundred parts of silica to fifty parts of the alkalies, more or less, and the whole is pulverized together and heated in a crucible to a temperature of about 2,4t00 Fahrenheit.
- lhe product may be employed in a molten condition, or it may after cooling be finely divided by grinding and then placed between the metals in a dry or liquefied condition, and then the metal with the cement are together heated in a muffle-furnace to a temperature of about 1, S00 Fahrenheit.
- the insulating-cement may be applied to any metal which will withstand the high temperature of the furnace in which the cement is fused onto and between the metals. WVhen desired, the fused silica may be inserted between the metal in a fused or molten condition.
- An insulating strain-resisting fitting comprising metallic parts having their abutting faces insulated from each other and connected by an interposed layer of silica vitrified by means of a flux, substantially as described.
Description
(No Model.)
J. 0 LE GG. STRAIN INSULATOR.
Patented Feb M. mm
UNITED STATES JAMES CLEGG, OF NEW YORK, N. Y.,
PATENT OFFICE.
ASSIGNOR TO THE METALLIC INSU- STRAIN-INSULATOR.
SPECIFICATION forming part of Letters Patent No. 599,493, dated February 22, 1898.
Application filed December 30, 1895. Serial No. 573,709. (No model.)
To all whom it may concern.-
Be it known that I, JAMES OLEGG, a subject of Her Majesty the Queen of England, residing at the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Insulating Electric Fittings, of which the following is a specification.
This invention relates to the insulation of metallic fittings and appliances for use with electric currents and other purposes of great utility.
It is well known that the principal difficulty in the distribution of electric energy is the insulation of it in predetermined areas.
My invention provides the means and materials, as are herein set'forth,whereby metals can be cemented together with a cement of great tenacity and which will resist electric currents of the highest electromotive forces, and this cement will resist the extremes of heat and cold. It is unaffected by the most destructive acids,excepting hydrofluoric, and it is not attacked by any gases or the atmosphere, and consequently it is very durable.
In order to fully explain the details and scope of my invention, I will refer to the accompanying drawings, in which- Figures 1 and 2 are respectively front and sectional views showing two pieces of metal, as iron, one-eighth of an inch thick, more or less, stamped out with an eye at one end and laid and held the one upon the other with insulating-cement between them. Fig. 3 is a sectional view showing the cement and two pieces of metal, whereof one is corrugated. Fig. 4 is a similar view showing both of the metallic pieces corrugated. Fig. 5 is a sectional view showing an electric appliance constructed of two pieces of iron fitted together with the insulating-cement between them; and Fig. 6 is a sectional view illustrating an electric fitting comprising two metallic pieces or parts respectively threaded and screwed together and having the cement interposed between their threaded portions.
In the drawings, Figs. 1 and 2 show two pieces a and a of sheet-iron an eighth of an inch thick, more or'less, stamped out with an eye at one end, and one piece is laid and held upon the other with the insulating-cement 1) between them. The insulating-cement may be of a thickness of not more than one-sixteenth of an inch. These two pieces of metal may be cuttings from ordinary sheet-iron, with plane surfaces, and the tensile strength of the insulatingcement, hereinafter described, is capable of resisting a tensile strain of more than one thousand pounds to each square inch of surface, and tests of the electric resistance of the insulating-cement have shown that it exceeds one million ohms. WVhen the surfaces of the metal are corrugated or angularized, the strength of the cement-joint is increased. Fig. 8 shows two pieces of sheet iron or metal a and a with one piece,a ,corrugated and the other,a',with a plane surface. Z) in these figures shows the insulating-cement.
In Fig. 4 both pieces a and of of sheet metal are corrugated, and b is the cement. This insulating-cement can be applied also to other electric fittings. For example, Fig. 5 shows an electric appliance made of two pieces of iron a and a The part a is provided with a round cavity in its center of one and oneeighth inches diameter and one and one-eighth inches in depth, more or less. The other piece, (6 is in the form of a plug, and its depth is one inch and its diameter is one inch, more or less, and there is a space of one-sixteenth of an inch, more or less, for the insulatingcement Z). The superficial area of the cement in the device last above described exceeds three inches, and the tensile strength of this appliance has been ascertained by experiment to exceed three thousand pounds and its electric resistance to exceed one million ohms.
Fig. 6 shows parts a and c0 threaded and screwed together, with the insulating material between the threads and each of these parts provided with an eye.
The electric insulating-cement b of this invention is composed of silica, which may be obtained by the calcination of flint, and the best results are obtained by the employment of pure silica. However, good results may be obtained when alumina, which is generally found with silica, does not exceed fifteen per cent., more or less, and it is more tenacious when it is free from metallic oxids, such as the oXids of calcium, iron, and manganese. The silica may be first fused by the employment of an alkaline or other flux such as borax, pearlash, or soda-ash, or other sodium or potassium compounds. Silica is taken in proportion of one hundred parts of silica to fifty parts of the alkalies, more or less, and the whole is pulverized together and heated in a crucible to a temperature of about 2,4t00 Fahrenheit. lhe product may be employed in a molten condition, or it may after cooling be finely divided by grinding and then placed between the metals in a dry or liquefied condition, and then the metal with the cement are together heated in a muffle-furnace to a temperature of about 1, S00 Fahrenheit. The insulating-cement may be applied to any metal which will withstand the high temperature of the furnace in which the cement is fused onto and between the metals. WVhen desired, the fused silica may be inserted between the metal in a fused or molten condition.
It will be obvious to those skilled in the art to which my invention relates that modifications may be made in details without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth and illustrated in the accompanying drawings; but, I
Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is
An insulating strain-resisting fitting comprising metallic parts having their abutting faces insulated from each other and connected by an interposed layer of silica vitrified by means of a flux, substantially as described.
In testimony whereof I have hereunto signed my name.
JAMES CLEGG.
In presence of A. B. STOUGHTON, W. T. JAcKsoN.
Publications (1)
Publication Number | Publication Date |
---|---|
US599493A true US599493A (en) | 1898-02-22 |
Family
ID=2668133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US599493D Expired - Lifetime US599493A (en) | Strain-insulator |
Country Status (1)
Country | Link |
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US (1) | US599493A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2624107A (en) * | 1949-08-16 | 1953-01-06 | Avco Mfg Corp | Fixture assembly |
US2646614A (en) * | 1948-08-18 | 1953-07-28 | Universal Lubricating Systems | Method of making lubricating fittings |
US2991378A (en) * | 1958-01-02 | 1961-07-04 | Gen Electric | Composite magnetic core structure and method of making same |
US3057053A (en) * | 1959-04-13 | 1962-10-09 | Schlage Lock Co | Method of forming and installing a strike box and strike plate |
-
0
- US US599493D patent/US599493A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2646614A (en) * | 1948-08-18 | 1953-07-28 | Universal Lubricating Systems | Method of making lubricating fittings |
US2624107A (en) * | 1949-08-16 | 1953-01-06 | Avco Mfg Corp | Fixture assembly |
US2991378A (en) * | 1958-01-02 | 1961-07-04 | Gen Electric | Composite magnetic core structure and method of making same |
US3057053A (en) * | 1959-04-13 | 1962-10-09 | Schlage Lock Co | Method of forming and installing a strike box and strike plate |
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