US1858819A - Switchboard lamp - Google Patents
Switchboard lamp Download PDFInfo
- Publication number
- US1858819A US1858819A US212667A US21266727A US1858819A US 1858819 A US1858819 A US 1858819A US 212667 A US212667 A US 212667A US 21266727 A US21266727 A US 21266727A US 1858819 A US1858819 A US 1858819A
- Authority
- US
- United States
- Prior art keywords
- threaded
- lamp
- shells
- shell
- switchboard
- 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
- 230000000295 complement effect Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
Definitions
- My invention relates to switchboard lamps and particularly to pilot lamps for indicat into which a threaded lens and resistorele' ment may be removably mounted andwherein the resistor element serves as a support for the lamp socket orreceptacle.
- FIG. 1 is a longitudinal sectionthrough a switchboard pilot lamp
- Fig. 2 is a front elevational view of the lamp shown in'Fig'Land p
- Fig. 3 is a longitudinal section illustrating a modified manner of mo-unting'the device shown in Fig. 1.
- the lamp come prises a pair of threaded shells 3 and 4 that are provided with flanges 5 and 6, respectively, the shell 3 fitting within the shell 4 and having threaded engagement therewith.
- the shells are made of thin sheet metal and are formed by drawing and forming processes in such manner that the shells are externally and internally threaded, as indicated in Fig. l. r
- the shells are adapted to be mountedin an opening 7 in an insulating'panel board 8 or in a sheet metal panel board and are securely clamped therein by turning one shell with respect to the other until the flanges 5 and6 engage opposite faces'of the panel. 'After the shells have been clamped in position, relative rotary movement of the shells with respect to one another and with respect to the panel is prevented by means of screws 9 that are threaded into the paneland which secure the flange 6 thereto.
- the shell 3 isprovided with a pair of oppositely disposed internally projecting stop lugs 11 which serve as a limit stop for a resister element 12 having an enlarged thread ed head portion 13 which is screwed into the shell 3 until the inner face thereof engages the stop lugs 11.
- the resistor element 12' is of the usual type for reducing the voltage supplied to the pilot lamp 10, that is mounted in a socket member 14: that is'attached to the enlarged end l3 of the resistor element 12.
- the socket 14% will oc'cupya predetermined relative position with respect to the front of the panel, regardless of the thickness of the panel. It will be noted that since the shells 3 and a overlap one another to a considerable-extent, the shells may be mountedin panels of diiferentflthicln iess without necessitating alteration of the dimerisionsofthe shells.
- An vexternally]threaded glass lens 15 is threaded'into the shell 3 and serves to-pro-' tect the lamp l0.
- the lens may be made" of i glass having any desired color to distinguish circuits, one from the other.
- a switchboard lamp comprising a socket member consisting of a pair of complementary threaded shells having threaded enment disposed in the-other end of the socket member, and having a lamp receptacle mounted on the inner end thereof.
- A'switchboard lamp comprising a pair of complementary threaded shells having threaded engagement with one another and disposed within an opening in a switchboard panel and constituting an internally threaded socket member, a lamp socket for receivinga lamp and supported by the shells, the outer -GlldSl of the shells having portions of greater width than the diameter of the opening for engaging the opposite faces of the panel andtor clamping the socket in operative positions, a lens threaded into one end of the socket member and -a resistor element threaded into the other end thereof.
- a switchboard lamp comprising a pair of complementary threaded shells having threaded engagement withone another and disposed within an opening in a switchboard panel and constituting an internally threaded socket member, the outer ends of the shells having portions of greater fWldtll than the diameter of the opening for engaging the oppos'ite'faces ofthe paneland for clamping the socket inoperative positions, internally extending stop members on one of the shell -members, a lensthreaded into :one ,end of the socket member, a resistor element threaded into the other end thereof and engaging the stop members and a lamp socket mounted on the resistor element. 6.
- a switchboard lamp comprising a sockets member consisting of a pair of complementary press-threaded metal shells, threaded inment of the shells, and the shell having the member engaging the front face of the panel being the innermost shell, a threaded lens threaded into the internal thread of the innermost shell a threaded lamp socket support threaded into the internal thread of the same innermost shell.
- a switchboard lamp comprising a socket member consisting of a pair of complementary press-threaded metal shells, threaded interiorly and exteriorly and having threaded engagement with one another, and disposed within an opening in a switchboard panel, the said shells being provided with external members for engaging opposite sides of the panel and preventing longitudinal displacement of the shells, and the shell having the member engaging the front face of the panel being the innermost shell, a threaded lens threaded into the internal thread of the innermost shell and ,a threaded lamp socket support threaded into the internal thread of the same innermost shell, the said innermost shell having an inwardly extending stop member for limitingthe position of the said support in the innermost Shell.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
May 17, 1932. A. CORBETT SWITCHBOARD LAMP Filed Aug. 13, 1927 INVENTOR Alfred Corbett ATTdRNEY H ALFRED Patented May 17,1932
OORBETT, or IRWIN, PENNSYLVANIA, ASSIGNOB 'ro wEstrINerrousn na ic & MANUFACTURING'COMPANY,.A. CORPORATION or PENNSYLVANIA ssasie swrrcniaoann LAMP,
Application filed AugustlB, 1927. Serial No. 212,867.
My invention relates to switchboard lamps and particularly to pilot lamps for indicat into which a threaded lens and resistorele' ment may be removably mounted andwherein the resistor element serves as a support for the lamp socket orreceptacle. a f
These and other objects that willbe mad'e apparent throughoutthe further description of my invention are attained bymeans of the switchboard hereinafter described and illustrated in the accompanying drawings, wherein Figure 1 is a longitudinal sectionthrough a switchboard pilot lamp, Fig. 2 is a front elevational view of the lamp shown in'Fig'Land p Fig. 3 is a longitudinal section illustrating a modified manner of mo-unting'the device shown in Fig. 1.
Referring to the drawings, the lamp come prises a pair of threaded shells 3 and 4 that are provided with flanges 5 and 6, respectively, the shell 3 fitting within the shell 4 and having threaded engagement therewith. The shells are made of thin sheet metal and are formed by drawing and forming processes in such manner that the shells are externally and internally threaded, as indicated in Fig. l. r
The shells are adapted to be mountedin an opening 7 in an insulating'panel board 8 or in a sheet metal panel board and are securely clamped therein by turning one shell with respect to the other until the flanges 5 and6 engage opposite faces'of the panel. 'After the shells have been clamped in position, relative rotary movement of the shells with respect to one another and with respect to the panel is prevented by means of screws 9 that are threaded into the paneland which secure the flange 6 thereto.
The shell 3 isprovided with a pair of oppositely disposed internally projecting stop lugs 11 which serve as a limit stop for a resister element 12 having an enlarged thread ed head portion 13 which is screwed into the shell 3 until the inner face thereof engages the stop lugs 11. The resistor element 12'is of the usual type for reducing the voltage supplied to the pilot lamp 10, that is mounted in a socket member 14: that is'attached to the enlarged end l3 of the resistor element 12.
Since the stop lugs 11 are carried by the shell 3 which is mounted in-the front face of the panel, the socket 14% will oc'cupya predetermined relative position with respect to the front of the panel, regardless of the thickness of the panel. It will be noted that since the shells 3 and a overlap one another to a considerable-extent, the shells may be mountedin panels of diiferentflthicln iess without necessitating alteration of the dimerisionsofthe shells. I
-When' the socket member is applied to a sheet metal board 16, or a board, of less thick ness-thanthe'length of the front shell 3, asillustlrated in'Fig; 3, the shell dis reversed and is screwed upon the shell 3' with the flanged end first engaging the shell3. 1 An vexternally]threaded glass lens 15 is threaded'into the shell 3 and serves to-pro-' tect the lamp l0. The lens may be made" of i glass having any desired color to distinguish circuits, one from the other.
By reason of the constructionabove .described, theresistor elements may be removed for inspection or replacement'f by simply turning them counter-clockwise and unscrewing them from the socket. The lens may similarly be removed for gaining accessto. the lamp and socket for the purpose :of inspection or replacement; I While I have illustrated but one embodiment of my invention, it will be apparent to those skilled in the art that various changes,
modifications, substitutions, additions-and omissions may be made in the apparatus illustrated' without departing from the spirit and scope of my invention as set forth in the appended claims.
I claim as my invention:
1. A switchboard lamp comprising a socket member consisting of a pair of complementary threaded shells having threaded enment disposed in the-other end of the socket member, and having a lamp receptacle mounted on the inner end thereof.
A'switchboard lamp comprising a pair of complementary threaded shells having threaded engagement with one another and disposed within an opening in a switchboard panel and constituting an internally threaded socket member, a lamp socket for receivinga lamp and supported by the shells, the outer -GlldSl of the shells having portions of greater width than the diameter of the opening for engaging the opposite faces of the panel andtor clamping the socket in operative positions, a lens threaded into one end of the socket member and -a resistor element threaded into the other end thereof.
4. A switchboard lamp comprising a pair of "complementary threaded -.shel-ls having threaded engagement with one another and disposed within an opening in a; switchboard panel and constituting an internally threadedsocket member, the outer endsof the shells having portions of greater width than the :diameter=of:.tl1e opening forengaging the opposite faces of the panel and for clamping the socket inoperative positions, a lens threaded into one end .of the socket member, a resistor element threaded into the other end thereof and a lamp socket mounted .on the resistor aelement.
7. A switchboard lamp comprising a socket member consisting of a pair of complementary press-threaded metal shells, threaded interiorly and exteriorly and having threaded engagement with one another, and disposed within an opening in a switchboard panel, the said shells being provided with external members for engaging opposite sides of the panel and preventing longitudinal displacement of the shells, and the shell having the member engaging the front face of the panel being the innermost shell, a threaded lens threaded into the internal thread of the innermost shell and ,a threaded lamp socket support threaded into the internal thread of the same innermost shell, the said innermost shell having an inwardly extending stop member for limitingthe position of the said support in the innermost Shell.
.In testimony whereof, I have hereunto-subscribed my name this 3rd day of August 1927.
GORBETT.
usin V
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US212667A US1858819A (en) | 1927-08-13 | 1927-08-13 | Switchboard lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US212667A US1858819A (en) | 1927-08-13 | 1927-08-13 | Switchboard lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
US1858819A true US1858819A (en) | 1932-05-17 |
Family
ID=22791972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US212667A Expired - Lifetime US1858819A (en) | 1927-08-13 | 1927-08-13 | Switchboard lamp |
Country Status (1)
Country | Link |
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US (1) | US1858819A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529706A (en) * | 1949-01-13 | 1950-11-14 | Pyle National Co | Explosion-proof pilot light |
US2740111A (en) * | 1952-08-21 | 1956-03-27 | Etc Inc | Combined signal lamp and resistor |
US2826680A (en) * | 1956-03-29 | 1958-03-11 | Sears Roebuck & Co | Pilot light assembly |
US2918585A (en) * | 1958-04-11 | 1959-12-22 | Edward B Farmer | Photoelectric mount |
-
1927
- 1927-08-13 US US212667A patent/US1858819A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529706A (en) * | 1949-01-13 | 1950-11-14 | Pyle National Co | Explosion-proof pilot light |
US2740111A (en) * | 1952-08-21 | 1956-03-27 | Etc Inc | Combined signal lamp and resistor |
US2826680A (en) * | 1956-03-29 | 1958-03-11 | Sears Roebuck & Co | Pilot light assembly |
US2918585A (en) * | 1958-04-11 | 1959-12-22 | Edward B Farmer | Photoelectric mount |
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