US353333A - Incandescent electric lamp - Google Patents
Incandescent electric lamp Download PDFInfo
- Publication number
- US353333A US353333A US353333DA US353333A US 353333 A US353333 A US 353333A US 353333D A US353333D A US 353333DA US 353333 A US353333 A US 353333A
- Authority
- US
- United States
- Prior art keywords
- filament
- fibers
- electric lamp
- incandescent electric
- incandescent
- 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
- 239000000835 fiber Substances 0.000 description 30
- 239000004020 conductor Substances 0.000 description 14
- 239000011521 glass Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 210000003298 Dental Enamel Anatomy 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003467 diminishing Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Definitions
- the present invention is an improvement upon that for which application for Letters Patent was filed by me November 3, 1884; and it consists in certain improvements in the formation and manufacture of filaments for incandescent electric lamps, the details whereof will be hereinafter fully set forth.
- Figure 1 shows in elevation an incandescent electric lamp embodying my invention.
- Fig. 2 is a detail view of the conductors for supporting the same within the lamp.
- Figs. 3, 4, 5, and 6 are detail views of different forms of the same filament.
- A represents a glass bulb or flask, which is of suitable size and may be of any desired shape, the opening through which the air is exhausted being by preference located at the neck, or that portion through which the conductors are inserted.
- conductors which are thin flat strips of a good conducting material-such as platinum-which strips are bent at their upper ends to form a clamp, 12, for inclosing and retaining the end of the filament, and they are also twisted at a point near where they emerge from the bulb, so as to impart the greatest possible stiffness and rigidity to them as supports for the filament.
- the said conductors may be united by a small portion of glass, b, and their lower portions are coated with enamel or soft glass before they are sealed into the bulb, this previous coating being for the purpose of diminishing the liability to leakage.
- O is the filament, which is composed of a quantity of any suitable fibersuch, for example, as cotton, silk, or flax-which is assembled for carbonization substantially as follows: A small bunch of the fibers has one end wrapped tightly with thread D. This end is (No model.)
- the thread D is then wrapped lightly and loosely around the bunch of fibers 0, throughout its desired length, the wrapping being loose toward the'center and then tighter toward the extremities, where it is finished by being tightly wound, and then dipped similarly to the other end.
- the complete filament is round in cross-section, the tips of the platinum conductors being clamped into-position upon the ends thereof; but as shown in Figs. 4 and 5 the filament is broad and thin, and after having been wrapped, as described, and the ends dipped in mucilage small pieces of paper are placed thereon, forming clamps holding the fibers together, and upon which the metallic conductoris subsequently clamped or otherwise secured.
- Fig. 3 a filament which is formed by taking a small bunch of fiber, tying the ends tightly, then doubling and forcibly twisting the same, so that when released suflicient of the twist will remain to retain the fibers in proximity to each other.
- the bunch of fibers has been tied at one end, then subdivided and loosely plaited, then tied at the otherend. 7
- lamps which, by reason of its want of homogeneity, will, on account of its comparatively large size, convey a very heavy current, and at the same time, on account of its peculiar structure, oppose great resistance to the passage of the current, and thereby be capable of being heated to a very high degree without destruction.
- the object in weaving or twisting the ma terial of the filament or protecting the same with the overwound thread is to prevent the small individual filaments or fibers from run ning out and separating, thus enabling the same to contract and expand without getting out of contact with each other.
- the object of my invention being to produce a filament of high resistance by assembling a bundle of small fibers in loose, imperfect, and discontinuous contact with each other.
- An incandescent filament composed of a bundle of loose fibers united at each end, as described, and having a loose wrapping along 25 its intermediate portion, as described.
- An incandescent filament consisting of the combination of a bundle of loose fibers held together by a loose wrapping of thread and provided at its end with clips d, substan- 3o tially as described.
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
(No'ModeL) 0. J. VAN DBPOELEQ INUANDESGENT ELECTRIC LAMP.
No. 3 53 ,333. Patented Nov. 30, 1886.
,B wwwwow gywcwl o'c. Chan-fies J Vi/n/Depoel e,
$313 611 "ahtonmmgo Nv PETERS. PlwIu-Lilhagrapher, Washmgicm 0.0.
UNITED STATES PATENT OFFICE.
CHARLES .I. VAN DEPOELE, OF CHICAGO, ILLINOIS.
INCANDESCENT ELECTRIC LAMP.
' SPECIFICATION forming part of Letters Patent No. 353,333, dated November 30, 1886.
Application filed August 1, 1885. Serial No. 173,288.
To aZZ whom it may c ncern/.-
Be it known that I, CHARLES J. VAN. DE- POELE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Incandescent Electric Lamps, of which the following is a specification, reference'being had to the accompanying drawings.
The present invention is an improvement upon that for which application for Letters Patent was filed by me November 3, 1884; and it consists in certain improvements in the formation and manufacture of filaments for incandescent electric lamps, the details whereof will be hereinafter fully set forth.
Figure 1 shows in elevation an incandescent electric lamp embodying my invention. Fig. 2 is a detail view of the conductors for supporting the same within the lamp. Figs. 3, 4, 5, and 6 are detail views of different forms of the same filament.
Similar letters denote like parts.
A represents a glass bulb or flask, which is of suitable size and may be of any desired shape, the opening through which the air is exhausted being by preference located at the neck, or that portion through which the conductors are inserted.
13 represents conductors, which are thin flat strips of a good conducting material-such as platinum-which strips are bent at their upper ends to form a clamp, 12, for inclosing and retaining the end of the filament, and they are also twisted at a point near where they emerge from the bulb, so as to impart the greatest possible stiffness and rigidity to them as supports for the filament. The said conductors may be united by a small portion of glass, b, and their lower portions are coated with enamel or soft glass before they are sealed into the bulb, this previous coating being for the purpose of diminishing the liability to leakage.
O is the filament, which is composed of a quantity of any suitable fibersuch, for example, as cotton, silk, or flax-which is assembled for carbonization substantially as follows: A small bunch of the fibers has one end wrapped tightly with thread D. This end is (No model.)
terial. The thread D is then wrapped lightly and loosely around the bunch of fibers 0, throughout its desired length, the wrapping being loose toward the'center and then tighter toward the extremities, where it is finished by being tightly wound, and then dipped similarly to the other end. As shown in Fig. 1, the complete filament is round in cross-section, the tips of the platinum conductors being clamped into-position upon the ends thereof; but as shown in Figs. 4 and 5 the filament is broad and thin, and after having been wrapped, as described, and the ends dipped in mucilage small pieces of paper are placed thereon, forming clamps holding the fibers together, and upon which the metallic conductoris subsequently clamped or otherwise secured.
In Fig. 3 is shown a filament which is formed by taking a small bunch of fiber, tying the ends tightly, then doubling and forcibly twisting the same, so that when released suflicient of the twist will remain to retain the fibers in proximity to each other. As shown in Fig. 6, the bunch of fibers has been tied at one end, then subdivided and loosely plaited, then tied at the otherend. 7
When the variously-formed bunches of fiber have been united or assembled, "as above described, whether exteriorly covered by a winding thread or not, they are to be carbonized in the well-known manner, being previously placed between two plates of metal or carbon to prevent their warping and getting out of shape. The pressure of the plates between which they are carbonized should not be sufficient to compress the fibers into a practically solid mass, for that would entirely defeat the object I have in view, which is to assemble a bunch of practically straight fibers and secure them loosely, and by associating them in imperfect contact with each other to produce a filament or incandescing conductor for incandescent. lamps, which, by reason of its want of homogeneity, will, on account of its comparatively large size, convey a very heavy current, and at the same time, on account of its peculiar structure, oppose great resistance to the passage of the current, and thereby be capable of being heated to a very high degree without destruction.
The object in weaving or twisting the ma terial of the filament or protecting the same with the overwound thread is to prevent the small individual filaments or fibers from run ning out and separating, thus enabling the same to contract and expand without getting out of contact with each other.
I am aware that an incandescing filament has been made out of abundle of small fibers massed together, so as to form a single conductor, and this I do not claim, the object of my invention being to produce a filament of high resistance by assembling a bundle of small fibers in loose, imperfect, and discontinuous contact with each other.
What I claim is- 1. An incandescent filament composed of an indefinite number of small fibers united at their outer ends and arranged in loose, im-
tperfect, and discontinuous contact with each 20 other throughout the remainder of their length,
as described.
2. An incandescent filament composed of a bundle of loose fibers united at each end, as described, and having a loose wrapping along 25 its intermediate portion, as described.
3. An incandescent filament consisting of the combination of a bundle of loose fibers held together by a loose wrapping of thread and provided at its end with clips d, substan- 3o tially as described.
In testimony whereof I hereto affix my signature in presence of two Witnesses.
CHARLES J. VAN DEPOELE.
Witnesses:
JOHN EASON, WVARREN S. STEARNS.
Publications (1)
Publication Number | Publication Date |
---|---|
US353333A true US353333A (en) | 1886-11-30 |
Family
ID=2422386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US353333D Expired - Lifetime US353333A (en) | Incandescent electric lamp |
Country Status (1)
Country | Link |
---|---|
US (1) | US353333A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180757A (en) * | 1978-02-23 | 1979-12-25 | Western Electric Co., Inc. | Incandescent lamp with vibration-protected filament mount |
-
0
- US US353333D patent/US353333A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180757A (en) * | 1978-02-23 | 1979-12-25 | Western Electric Co., Inc. | Incandescent lamp with vibration-protected filament mount |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US223898A (en) | Electric lamp | |
US4445106A (en) | Spiral wound fuse bodies | |
TW200942068A (en) | Tape heater and method for manufacturing the same | |
US353333A (en) | Incandescent electric lamp | |
US4409729A (en) | Method of making spiral wound fuse bodies | |
US2823292A (en) | Device for the continuous heat treatment of textile yarns | |
US1731119A (en) | Electric heater | |
US2625666A (en) | Filament for electron tubes | |
KR101058425B1 (en) | Carbon fiber heating lamp | |
KR100686328B1 (en) | Lamp heater with pipe typed form of woven carbon fibers and method thereof | |
US644312A (en) | Electrical helix. | |
US446669A (en) | Thomas a | |
US296164A (en) | Alfred haid | |
US370999A (en) | Edwaed p | |
US298325A (en) | Edavaed weston | |
US694220A (en) | Former for filaments for incandescent electric lamps. | |
US3817296A (en) | Method of making an electrode having a filament with extending legs | |
US652504A (en) | Electric heater. | |
US266447A (en) | Thomas a | |
US1653385A (en) | Lamp mount | |
US323983A (en) | Incandescent lamp | |
US430933A (en) | Thomas a | |
KR100686327B1 (en) | Lamp heater with pipe typed form of woven carbon fibers and method thereof | |
US635133A (en) | Electric heater. | |
GB191207148A (en) | Improvements relating to Electric Incandescent Lamps. |