US3308338A - Device for automatically replacing an open circuited lamp with a new lamp - Google Patents

Device for automatically replacing an open circuited lamp with a new lamp Download PDF

Info

Publication number
US3308338A
US3308338A US380423A US38042364A US3308338A US 3308338 A US3308338 A US 3308338A US 380423 A US380423 A US 380423A US 38042364 A US38042364 A US 38042364A US 3308338 A US3308338 A US 3308338A
Authority
US
United States
Prior art keywords
lamp
support
base
lamps
terminal
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
Application number
US380423A
Other languages
English (en)
Inventor
Seidler Robert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US380423A priority Critical patent/US3308338A/en
Priority to GB27909/65A priority patent/GB1036390A/en
Priority to NL6508600A priority patent/NL6508600A/xx
Priority to SE8868/65A priority patent/SE310737B/xx
Priority to DE1965S0098020 priority patent/DE1489516B2/de
Application granted granted Critical
Publication of US3308338A publication Critical patent/US3308338A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret

Definitions

  • This invention is directed to a device which can be used in isolated positions and is for signalling and identifying the position of certain objects such as buoys, lighthouses, and other aids to navigation. While electric lamps have been used for this type of service for a number of years, there has always been the problem of filament burn-out and consequent elimination of the signal. Various schemes have been proposed and used for replacing new lamps to take the place of burned-out ones. Generally these arrangements are quite complicated and there is difiiculty in insuring that they will always function properly.
  • the present invention is a simple device which is reliable and can be made automatic in operation. All the lamps are positioned on a single rotating support and power for turning the support is supplied by a spiral spring which is fully enclosed to protect it from the weather. When the device is made automatic, a new lamp is turned into operating position as soon as the oldlamp is burned out. This action proceeds until all the lamps have been used. Any number of lamps may be supported in this manner.
  • One of the objects of this invention is to provide an improved lamp changing device which avoids one or more of the disadvantages and limitations of prior art arrangements.
  • Another object of the present invention is to simplify the alignment of a plurality of prefocused lamps in an automatic lamp changer.
  • Another object of the invention is to lower the resistance of a changeable lamp structure by the use of a broad contact base and a flexible lead-in conductor.
  • Another object of the present invention is to reduce the cost of lamp changing structures by the use of metal stampings and molded plastic parts.
  • Another object of the present invention is to provide a structure which may be automatically controlled by an external control circuit which changes lamps at once when the lamp being used fails.
  • Still another object of the present invention is to stop the lamp changer after all the lamps have been burned out and to immobilize the signaling means so that the escapement will not be operated.
  • the invention includes a base for supporting all the lamps and the associated equipment.
  • a rotatable lamp support is mounted on the base and a plurality of flat conductive lamp terminals are mounted on the support for holding all the lamps in a position so that they may be moved to optical alignment when the support is rotated.
  • Each lamp receives current through a resilient conductor which also aids in supporting the lamp in position.
  • the lamp support is rotated by a spiral spring which is coupled between a portion of the base and the lamp support.
  • An escapement means is mounted on the base and is coupled to the rotatable support for releasing the support for rotation. The escapement means is controlled by an electrical transducer which may be connected to a circuit which is operated when a lamp burns out.
  • FIGURE 1 is a front view of the lamp changer showing six lamps in position.
  • FIGURE 2 is a side view of the lamp changer shown in FIGURE 1 but with the lamps removed.
  • FIGURE 3 is a back view of the lamp changer with the lamps removed.
  • FIGURE 4 is a cross sectional view of the lamp changer shown in FIGURE 2 and is taken along line 4-4 of that figure.
  • FIGURE 5 is a schematic diagram of connections showing the lamps, the escapement means, and the solenoi-d.
  • the lamp changer includes a base 10 which may be supported by a bent-over portion 11.
  • a rotatable lamp support 12 is mounted on the base and turns about fixed axial shaft 13.
  • An insulating hub 14 is also journaled upon the shaft 13.
  • a dielectric spring compartment 15 is secured to the lamp support 12, and carries a plurality of flexible contact springs 17.
  • the lamps are mounted on metal supports 18 which are provided with bent-over portions 18A. The bent-over portions are secured to an escapement wheel 20 which in turn is secured to the spring compartment 15.
  • Each lamp support 18 is accurately positioned on the escapement wheel 20 and is provided with a keyhole shaped cut-out portion 21 (FIGURE 2) for seating the lamp bases so that the filaments will be in focus when the lamps are moved into their lighted position.
  • the lamps 22 are of the prefocussed type and are provided with a circular base rim 23 which is also one of the electrical terminals of the lamp. When the lamps are seated in the supports most of the upper face of the rims 23 are in contact with a lower portion of the support 18 and for this reason there exists a large area which provides a low resistance contact and a positive positioning bearing surface.
  • the lamp tips are in contact with the ends of resilient members 17 so that they are held against supports 18 and are always retained in their desired position. All the springs 17 are connected together by nut 24 which is threaded into the end of the shaft 13 traversing spring compartment 16. For additional low resistance conduction, a flexible lead may be joined to the shaft and to all the resilient conductors but this is not always necessary.
  • each of the lamp supports is spaced apart from the other supports and is secured to the insulator escapement wheel 20 by bolts 25.
  • the back ends of these bolts are used as contact means for conveying current to the upper lamp. This is done by one or more resilient flat springs 26.
  • FIGURE 3 shows two of these but one would be sufiicient. From the above description it will be obvious that one electrical terminal of the lamp is the base 10 while the other terminal is either end of shaft 13.
  • FIGURE 4 shows the details of the escapement wheel 20 and its cooperating ratchet 27 or pallet.
  • the pallet 27 is connected to a shaft 28 which runs through the base and is connected to a solenoid 30 mounted on the other side. Any type of solenoid may be used as long as it turns shaft 28 through a small angle when an electrical pulse is applied to the winding.
  • the device shown in FIGURE 5 shows a winding 31, a plunger 32 secured to an arm, and a return spring 33.
  • the escapement wheel 20 is provided with teeth 34 equally spaced around the periphery, each tooth corresponding to a lamp position.
  • shaft 23 When this device is operated, shaft 23 is turned so that one portion of pallet is drawn clear of the tooth and the spring 19 turns the wheel 26 a position of a revolution until the next tooth comes in contact with another portion of the pallet 27A which has been moved into a blocking position. As soon as the current is turned off, spring 53 returns the pallet 27 to its original position and the first extension of the pallet engages the next tooth of the escapement wheel.
  • FIGURE 5 shows the complete wiring diagram associated with the lamp changing device.
  • a source of electrical power 35 has one of its terminals connected to shaft 13 and all the lamps 22.
  • the other terminal of the power supply is connected through a current sensing circuit 36 and at least one contact arm 26. This contact arm makes successive contact with the lamps as they are rotated into operating position.
  • the second terminal of the power supply is also connected through a switch 37 to the solenoid winding 31 and the other side of the power supply.
  • Switch 37 may be operated by hand but it is desirable to make the lamp changing device automatic and for this reason a current sensing circuit 36 is connected to the switch and each time a lamp burns out, the sensing circuit 36 senses the lack of current and closes switch 37 which then operates the escapement means and moves another lamp into operating position.
  • the details of the sensing circuit are not a part of this invention and will not be described here. A description of such a circuit may be found in U.S. Patent No. 3,027,491, issued March 27, 1962.
  • a lamp changing device for replacing a burned out lamp with an operable lamp comprising;
  • a spiral spring coupled between a portion of the base and said rotatable lamp support for turning an operable lamp into position
  • a lamp changing device as claimed in claim 1 wherein said electrical transducer is a solenoid with the solenoid plunger coupled to the escapement means.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
US380423A 1964-07-06 1964-07-06 Device for automatically replacing an open circuited lamp with a new lamp Expired - Lifetime US3308338A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US380423A US3308338A (en) 1964-07-06 1964-07-06 Device for automatically replacing an open circuited lamp with a new lamp
GB27909/65A GB1036390A (en) 1964-07-06 1965-07-01 Lamp changing device
NL6508600A NL6508600A (xx) 1964-07-06 1965-07-05
SE8868/65A SE310737B (xx) 1964-07-06 1965-07-05
DE1965S0098020 DE1489516B2 (de) 1964-07-06 1965-07-06 Vorrichtung zum auswechseln einer ausgebrannten lampe gegen eine betriebsfaehige lampe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US380423A US3308338A (en) 1964-07-06 1964-07-06 Device for automatically replacing an open circuited lamp with a new lamp

Publications (1)

Publication Number Publication Date
US3308338A true US3308338A (en) 1967-03-07

Family

ID=23501111

Family Applications (1)

Application Number Title Priority Date Filing Date
US380423A Expired - Lifetime US3308338A (en) 1964-07-06 1964-07-06 Device for automatically replacing an open circuited lamp with a new lamp

Country Status (5)

Country Link
US (1) US3308338A (xx)
DE (1) DE1489516B2 (xx)
GB (1) GB1036390A (xx)
NL (1) NL6508600A (xx)
SE (1) SE310737B (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678286A (en) * 1971-03-22 1972-07-18 Eastman Kodak Co Automatic lamp changer and spare lamp indicator circuit
US3914645A (en) * 1974-07-12 1975-10-21 Educational & Commercial Avcom Multiple lamp unit for protection
US4142129A (en) * 1976-05-25 1979-02-27 Victor Hasselblad Ab Lamp changing system for projectors
US4217626A (en) * 1978-09-25 1980-08-12 Bindle Edward A Automobile headlight change system
DE10103242C1 (de) * 2001-01-25 2002-08-22 Zuelfikar Celik Kraftfahrzeug-Beleuchtungsvorrichtung
EP1312857A1 (de) * 2001-11-19 2003-05-21 Heraeus Med GmbH Leuchtenkörper für eine medizinische Leuchte sowie dessen Verwendung
US6823756B2 (en) 2001-03-16 2004-11-30 Leica Microsystems Wetzlar Gmbh Displacement unit
US20070139954A1 (en) * 2005-12-17 2007-06-21 Ulrich Sander Apparatus For Illuminating A Viewing Field, For Example An Object Field Under A Microscope
CN104006924A (zh) * 2013-02-22 2014-08-27 株式会社小糸制作所 车辆用灯具的检查装置
CN106594533A (zh) * 2016-11-14 2017-04-26 杭州知加网络科技有限公司 一种自动替换灯泡的led照明灯具
CN108302406A (zh) * 2018-01-17 2018-07-20 深圳市雷凌广通技术研发有限公司 一种基于物联网的具有灯泡自动更换功能的路灯
CN110566864A (zh) * 2019-09-27 2019-12-13 广州千睿信息科技有限公司 一种路灯

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033625A1 (de) * 1990-10-23 1992-04-30 Bieroth Heinz Beleuchtung eines operationstisches
DE4104609A1 (de) * 1991-02-15 1992-08-20 Wild Heerbrugg Ag Beleuchtungseinrichtung fuer optische geraete mit separaten beleuchtungsstrahlengaengen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054013A (en) * 1931-02-10 1936-09-08 Wallace & Tiernan Inc Signal device
US2195374A (en) * 1936-10-06 1940-03-26 Wallace & Tiernan Inc Signal device
US2592165A (en) * 1950-01-16 1952-04-08 Julian A Mcdermott Bulb changer
US2892966A (en) * 1957-06-10 1959-06-30 Ca Nat Research Council Automatic lamp changers
US3146375A (en) * 1961-02-24 1964-08-25 Wallace & Tiernan Inc Lamp changer mechanism and control circuit therefor responsive to both light emission and filament continuity

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054013A (en) * 1931-02-10 1936-09-08 Wallace & Tiernan Inc Signal device
US2195374A (en) * 1936-10-06 1940-03-26 Wallace & Tiernan Inc Signal device
US2592165A (en) * 1950-01-16 1952-04-08 Julian A Mcdermott Bulb changer
US2892966A (en) * 1957-06-10 1959-06-30 Ca Nat Research Council Automatic lamp changers
US3146375A (en) * 1961-02-24 1964-08-25 Wallace & Tiernan Inc Lamp changer mechanism and control circuit therefor responsive to both light emission and filament continuity

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678286A (en) * 1971-03-22 1972-07-18 Eastman Kodak Co Automatic lamp changer and spare lamp indicator circuit
US3914645A (en) * 1974-07-12 1975-10-21 Educational & Commercial Avcom Multiple lamp unit for protection
US4142129A (en) * 1976-05-25 1979-02-27 Victor Hasselblad Ab Lamp changing system for projectors
US4217626A (en) * 1978-09-25 1980-08-12 Bindle Edward A Automobile headlight change system
DE10103242C1 (de) * 2001-01-25 2002-08-22 Zuelfikar Celik Kraftfahrzeug-Beleuchtungsvorrichtung
US6823756B2 (en) 2001-03-16 2004-11-30 Leica Microsystems Wetzlar Gmbh Displacement unit
US20030165053A1 (en) * 2001-11-19 2003-09-04 Soren Wasow Luminaire body for a medical light, and the use thereof
US6715895B2 (en) 2001-11-19 2004-04-06 Heraeus Med Gmbh Luminaire body for a medical light, and the use thereof
EP1312857A1 (de) * 2001-11-19 2003-05-21 Heraeus Med GmbH Leuchtenkörper für eine medizinische Leuchte sowie dessen Verwendung
US20070139954A1 (en) * 2005-12-17 2007-06-21 Ulrich Sander Apparatus For Illuminating A Viewing Field, For Example An Object Field Under A Microscope
CN104006924A (zh) * 2013-02-22 2014-08-27 株式会社小糸制作所 车辆用灯具的检查装置
CN104006924B (zh) * 2013-02-22 2017-10-24 株式会社小糸制作所 车辆用灯具的检查装置
CN106594533A (zh) * 2016-11-14 2017-04-26 杭州知加网络科技有限公司 一种自动替换灯泡的led照明灯具
CN108302406A (zh) * 2018-01-17 2018-07-20 深圳市雷凌广通技术研发有限公司 一种基于物联网的具有灯泡自动更换功能的路灯
CN110566864A (zh) * 2019-09-27 2019-12-13 广州千睿信息科技有限公司 一种路灯
CN110566864B (zh) * 2019-09-27 2021-12-24 江苏明都交通工程有限公司 一种路灯

Also Published As

Publication number Publication date
DE1489516B2 (de) 1976-09-09
DE1489516A1 (de) 1969-04-03
NL6508600A (xx) 1966-01-07
GB1036390A (en) 1966-07-20
SE310737B (xx) 1969-05-12

Similar Documents

Publication Publication Date Title
US3308338A (en) Device for automatically replacing an open circuited lamp with a new lamp
US1448353A (en) Flash light
US3836814A (en) Three-way lamp converter
US2298824A (en) Lamp socket
ES8305532A1 (es) "perfeccionamientos en interruptores bajo carga con proteccion por fusibles".
US1335272A (en) Finger-actuated signal-light
US2493491A (en) Electric lamp
US2557531A (en) Traffic signal apparatus
US5113044A (en) One-way/three-way light socket
US4921429A (en) Rotatable bulb socket assembly
US3958149A (en) Motor vehicle rear lighting system
US3146375A (en) Lamp changer mechanism and control circuit therefor responsive to both light emission and filament continuity
US2245707A (en) Electric lantern
US2428441A (en) Lamp failure switch
US2252489A (en) Signal switch
US2947854A (en) Miner s lamp structure including rack
US2543373A (en) Variable resistor switch
US2296005A (en) Signaling device
US2667545A (en) Automatic direction signal
US1611460A (en) Electric switch
US2262350A (en) Lighting system
US2674689A (en) Table and floor lamp knob switch
US1667706A (en) Electric lantern
US2021386A (en) Automobile signal switch
US2266548A (en) Vehicle lighting system