US374850A - Method of testing electkic lamp globes - Google Patents
Method of testing electkic lamp globes Download PDFInfo
- Publication number
- US374850A US374850A US374850DA US374850A US 374850 A US374850 A US 374850A US 374850D A US374850D A US 374850DA US 374850 A US374850 A US 374850A
- Authority
- US
- United States
- Prior art keywords
- testing
- globes
- lamp
- electkic
- fork
- 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
- 238000010998 test method Methods 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003739 Neck Anatomy 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
Definitions
- the invention relates to a method of preparing incandescent-electric-lamp globes for the purpose of exhausting the air therefrom.
- the object of the invention is. to-provide a convenient method for determining whether or not the lamps are hermetically sealed to the fork or tube through which they are exhausted.
- the invention consists in placing thelampbulbs and the fork, to which they are temporarily sealed, in a tank of water or other liquid and connecting the fork with a source of gas or air under pressure. If there is a leak at any of thejoints or in any ofthe globes, the air or gas will escape therethrough and rise to the surface of the water in the form of bubbles, thus indicating that there is a leakage and the point at which it takes place.
- A represents a tank containing water or other fluid, as indicated at B.
- the lamp-globesD D are sealed to the fingers c cot the fork C.
- This fork consists of a central tube, a, from which the tubes 0 radiate.
- the tubes 0 open into the tubes d at the. ends of the lamp-globes in a manner 5 well understood.
- the central tube is connected by a rubber tube or in any other convenient manner with a gas-pipe, E, or any other suitable supply of gas or compressed air.
- the stop-cook 0 6 may be opened and the fork and the attached lamps placed beneath the surface of the water.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Description
(No Model.)
O. P. REINM'ANN.
METHOD OF TESTING ELEOTRIU LAMP GLOBES. No. 374,850; I Patented Dec. 13,1887.
' I wmm/to e QQ-Wnaow I g MW u. PETERS, PhoimLiflmg n nnnnnnn hinglnn, n c. v
' UNITED STATES PATENT OFFICE.
CHARLES E. REINMANN, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE WESTINGHOUSE ELECTRIC COMPANY, OF SAME PLACE.
METHOD OF TESTING ELECTRIC-LAMP. GLOBES.
SPECIFICATION forming part of Letters Patent No. 374,850, dated December 13, 1887.
Application filed October I, 1887. Serial No. 251,187.- (No model.)
To all whom it may concern.-
Be it known that LCHARLEs F. REINMANN, a citizen of the United States, residing at Pittsburg, in the county of Allegheny, iu the State of Pennsylvania, have invented certain new and useful Improvements in the Method of Testing Electric-Lamp Globes, of which the following is a specification.
The invention relates to a method of preparing incandescent-electric-lamp globes for the purpose of exhausting the air therefrom.
The object of the invention is. to-provide a convenient method for determining whether or not the lamps are hermetically sealed to the fork or tube through which they are exhausted.
The invention consists in placing thelampbulbs and the fork, to which they are temporarily sealed, in a tank of water or other liquid and connecting the fork with a source of gas or air under pressure. If there is a leak at any of thejoints or in any ofthe globes, the air or gas will escape therethrough and rise to the surface of the water in the form of bubbles, thus indicating that there is a leakage and the point at which it takes place.
In the accompanying drawing there is shown a set of lamps placed in a tank for carrying out the operation.
Referring to the drawing, A represents a tank containing water or other fluid, as indicated at B. The lamp-globesD D are sealed to the fingers c cot the fork C. This fork consists of a central tube, a, from which the tubes 0 radiate. The tubes 0 open into the tubes d at the. ends of the lamp-globes in a manner 5 well understood. The central tube is connected by a rubber tube or in any other convenient manner with a gas-pipe, E, or any other suitable supply of gas or compressed air. After the fork is thus connected the stop-cook 0 6 may be opened and the fork and the attached lamps placed beneath the surface of the water.
In case there is an imperfectjoint or an opening in any of the globes or the necks of'the same it will become evident by the 'gas pass- 5 ing through and escaping .to the surface of the water.
It is evident that this process may be carried out without in any manner injuring the filaments ofthelamps or permittingthe water 50 to enter the globes.
I claim as my invention The hereinbeforedescribed process of testing lamp globes previous to their exhaustion,whieh consists in placing them, after they '55 are attached to their supporting -forks, beneath the surface of aliquid, and in forcing air or gas under pressure into the same and noting whether or not the air or gas escapes through the liquid. 60
In testimony whereof I have hereunto subscribed 'my name this 15th day of September,
CHARLES .F. REIN MANN.
. Witnesses! W. D. UPTEGRAFF, DANL. W. EDeEooMB.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US374850A true US374850A (en) | 1887-12-13 |
Family
ID=2443860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US374850D Expired - Lifetime US374850A (en) | Method of testing electkic lamp globes |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US374850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852459A (en) * | 1945-06-08 | 1958-09-16 | Robert R Williamson | Apparatus for detecting and locating presence of fluids |
| US20030046981A1 (en) * | 2001-09-13 | 2003-03-13 | Guide Corporation | Apparatus and method for pressurized oxygen bulb curing and testing |
| US20150355289A1 (en) * | 2012-12-27 | 2015-12-10 | Sharp Kabushiki Kaisha | Electronic device |
-
0
- US US374850D patent/US374850A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2852459A (en) * | 1945-06-08 | 1958-09-16 | Robert R Williamson | Apparatus for detecting and locating presence of fluids |
| US20030046981A1 (en) * | 2001-09-13 | 2003-03-13 | Guide Corporation | Apparatus and method for pressurized oxygen bulb curing and testing |
| US6722184B2 (en) * | 2001-09-13 | 2004-04-20 | Guide Corporation | Apparatus and method for pressurized oxygen bulb curing and testing |
| US20150355289A1 (en) * | 2012-12-27 | 2015-12-10 | Sharp Kabushiki Kaisha | Electronic device |
| US9970994B2 (en) * | 2012-12-27 | 2018-05-15 | Sharp Kabushiki Kaisha | Electronic device |
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