US1340813A - Process of manufacturing insulators - Google Patents
Process of manufacturing insulators Download PDFInfo
- Publication number
- US1340813A US1340813A US347757A US34775719A US1340813A US 1340813 A US1340813 A US 1340813A US 347757 A US347757 A US 347757A US 34775719 A US34775719 A US 34775719A US 1340813 A US1340813 A US 1340813A
- Authority
- US
- United States
- Prior art keywords
- tube
- asbestos
- mica
- manufacturing
- sheets
- 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
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000000034 method Methods 0.000 title description 4
- 239000012212 insulator Substances 0.000 title description 3
- 239000010425 asbestos Substances 0.000 description 9
- 229910052895 riebeckite Inorganic materials 0.000 description 9
- 239000010445 mica Substances 0.000 description 8
- 229910052618 mica group Inorganic materials 0.000 description 8
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
Definitions
- PROCESS 01 MANUFACTURING INS'ULA'IORS.
- the present invention has relation to a process of manufacturing insulators for electric heaters, and the principal object is to provide a device of the character set forth, that is capable of relatively7 great resistance, whereby a maximum degree of heat generation and subsequent radiation is assured.
- a further object of the invention is to isolate the insulated sheets between convolutions of asbestos whereby the core tube is protected against the heat generated by the resistance element wound thereon.
- Another object of the invention is to provide novel means for securing the insulating material upon the core tube.
- Figure 1 is a detail sectional view of the improved heater
- Fig. 2 is a perspective view of the core tube and mica and asbestos sheets, prior to the winding .of the latter upon the tube;
- Fig. is a sectional elevation of one end of the heater.
- the numeral 10 designates a hollow metallic tube having its end portions threaded as at 11 and 12, while end portion 12 is reduced as at 13 and such reduced portions 13 is threaded as at 14.
- Rings 1S and 19 and nuts 20 and 21 are screwed on the threaded end portions 11 and 12 of tube 10 and a plug 22 is screwed on the tube extensions '13.
- the plug ⁇ 22 is exteriorly screw threaded as at 23 and carries a pair of oppositely disposed terminal posts 24. and 25 to which the lead wires may be attached in the usual manner.
- rEhe resistance element comprises relatively tine nichrome wire 26 which is wound in spaced relation upon the insulation cylinder 17.
- the insulated ycylinder 17 will consist of alternate layers of mica and asbestos.
- the tube 10 is completely insulated from the resistance element 26 and the successive laminations' of asbestos and mica is immune from the great heat generated thereby.
Landscapes
- Resistance Heating (AREA)
Description
PIERRE JOSEPH HENRI BERNARD, OF MONTREAL, QUEBEC, CANADA.
PROCESS 01? MANUFACTURING INS'ULA'IORS.
Application led December 27, 1919.
To all whom z't may concern.'
Be 1t known that l, PIERRE Jessen l'lsNni' 'l BERNARD, a subject of the King of lGreat Britain, residing at Montreal, -rovince of Quebec, Canada, have invented certain new and useful Improvements in Processes of Manufacturing Insulators; and l do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable `others skilled in the art to which it appertains to make and use the same.
The present invention has relation to a process of manufacturing insulators for electric heaters, and the principal object is to provide a device of the character set forth, that is capable of relatively7 great resistance, whereby a maximum degree of heat generation and subsequent radiation is assured.
A further object of the invention is to isolate the insulated sheets between convolutions of asbestos whereby the core tube is protected against the heat generated by the resistance element wound thereon.
Another object of the invention is to provide novel means for securing the insulating material upon the core tube.
lith the above and other objects in view which will hereinafter appear as the description continues, the invention consists of the novel features of construction, combination and formation of parts as will be hereinafter more fully described and particularly pointed out in the appended claim.
In the accompanying drawings has been shown a simple and preferred form of the invention, it being, howeverf understood that no limitation isnecessarily made to the precise structural details herein exhibited, but the right is herebyreserved to any changes, alterations -or modifications to which recourse may be had that come within the scope of the claim without departing from the spirit of the invention or sacrifieing the eificiency of the same.
In the drawings:
Figure 1 is a detail sectional view of the improved heater;
Fig. 2 is a perspective view of the core tube and mica and asbestos sheets, prior to the winding .of the latter upon the tube;
Specification of Letters Patent.
Patented May 18, 1920.
serial No. 347,757.
the heater illustrating the application of the resistance element thereto; and,
Fig. is a sectional elevation of one end of the heater.
1n the embodiment of the invention illus-I trated in the drawings, the numeral 10 designates a hollow metallic tube having its end portions threaded as at 11 and 12, while end portion 12 is reduced as at 13 and such reduced portions 13 is threaded as at 14.
Several sheets of mica 15 are assembled upon an outer sheet of asbestos 16 and the tube 10 is placed thereupon. Thenthe mica and. asbestos sheets 15 and 1G are wrapped around tube 10 which forms the cylinder 17.
Rings 1S and 19 and nuts 20 and 21 are screwed on the threaded end portions 11 and 12 of tube 10 and a plug 22 is screwed on the tube extensions '13. The plug` 22 is exteriorly screw threaded as at 23 and carries a pair of oppositely disposed terminal posts 24. and 25 to which the lead wires may be attached in the usual manner.
rEhe resistance element comprises relatively tine nichrome wire 26 which is wound in spaced relation upon the insulation cylinder 17.
Proper contact connections are made with the terminal posts 24 and 25 at one end of the cylinder, which at the opposite end of the wire 26 is in connect-ion with tube 10 by means of a tap screw 27, which latter takes into the bore 28 thereof.
1 herve found that by the use of mica in sheets and the saine enveloped by asbestos in the manner stated, the insulated ycylinder 17 will consist of alternate layers of mica and asbestos.
The tube 10 is completely insulated from the resistance element 26 and the successive laminations' of asbestos and mica is immune from the great heat generated thereby.
Having thus fully described -my invention, what I claim as new and desire to secure by Letters Patent is The method of manufacturing insulatinc' cvlinders which com'rises wra Dino" s Pl s the center tube in sheets of mica and asbestos in such manner that each layer of mica will be inclosed by a layer of asbestos.
in witness whereof have hereunto set my hand.
HEERE JSEPH HENRI BERNARD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US347757A US1340813A (en) | 1919-12-27 | 1919-12-27 | Process of manufacturing insulators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US347757A US1340813A (en) | 1919-12-27 | 1919-12-27 | Process of manufacturing insulators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1340813A true US1340813A (en) | 1920-05-18 |
Family
ID=23365146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US347757A Expired - Lifetime US1340813A (en) | 1919-12-27 | 1919-12-27 | Process of manufacturing insulators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1340813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2471732A (en) * | 1947-03-13 | 1949-05-31 | Feenberg Eugene | Resistance element for coaxial transmission lines |
| US6418659B1 (en) * | 2000-05-26 | 2002-07-16 | Z-Man Fishing Products, Inc. | Fishing lure skirt and method |
-
1919
- 1919-12-27 US US347757A patent/US1340813A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2471732A (en) * | 1947-03-13 | 1949-05-31 | Feenberg Eugene | Resistance element for coaxial transmission lines |
| US6418659B1 (en) * | 2000-05-26 | 2002-07-16 | Z-Man Fishing Products, Inc. | Fishing lure skirt and method |
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