US1426557A - Light control - Google Patents

Description

R. W. EBELING AND H. J. FANGER. LIGHT CONTROL.

APPLICATION FILED JAN. 24. 1921.

. 1 126,557. Patented Aug. 22, 1922.

2 SHEETS-SHEET I.

.1. 1. 7 Hy a I v l 1 37 3 I. a Hlllllllllllll'i 7a 8 Im P 6 7. a. 4a g .31 18 1 3 I q: g2 34 3 1 V t J Li-yyl 2|! g5 :11 nu 1B 70 79 Ly: Z1 3 as? 17' 15 9392 In |iI-Q-ii- \\\\l\\\ g a o o 7 55 67 -20 l5 7! 87 I 27 I 14 Qf 16 59 1| I i II I l I"? 31 NIWNHHH. 10 76 a 5 g) I illli '86 2 l6 1N VENTOR Robert W Ebeliny. Hggynan J. fanyer,

R. w. EBELING AND H. 1. FANGER. Y

LIGHT CONTROL.

APPLICATION FILED JAN. 24, 192l- 2 SHEETS-SHEET 2.

5 77% 79 7 j 108 v5 70 8 s 104 I I 6 o .1067 r I v I l M 3 6 10? ii 110 v E TOR 109 I I obert w'%ei'm (I 5 lie yzan J; Fafigm 3. 4 ATTORNEY UNITED STATES PATENT OFFICE. ROBERT W. EBELING AND HERMALFJ. FANGER, F OAKLAND, CALIFORNIA, ASSIGNORS TO STANDARD LIGHT CONTROI COMPANY, OF OAKLAND, CALI- FORNIA.

LIGHT CONTROL.

To all whom-it may concer /3,: 3

Be it known that we, ROBERT W. EBELING and HERMAN J. FANGER, citizens of the United States, residing; at Oakland, in the county of Alameda and State of California have invented certain new and useful lmprovement-s in Light Controls, of which the following is a specification. 1

Our invention is an improved automatic controlling, switch particularly useful for intermittently lighting the lamps of electric signs.

Referring to the annexed drawing in which our invention is illustrated andwhich forms apart of this specification:

Figure 1 is a plan View of our switch.

Figure 2 is a left end elevation of our switch.

Figure 3 is a cross sectional view taken on line 3-3 of Figure 1.

Figure 1 is a vertical section of the dash pot.

Figure 5 is a cross sectional view on line 5-5 of Figure 1.

Figure 6 is a cross sectional view taken online 6+6 of Figure 1.

Figure 7 is a cross sectional View taken on line 77 of Figure 1.

Figure 8 is a cross sectional view taken on line 8+8 of Figural.

Figure 9 is a diagrammatic View of the switch circuit.

Figure 10 is an enlarged view of the up per end of the switch lever 15. 1

In. the drawings 1 indicates a base of insulation. On said base is mounted a double magnet 5 including a pair of magnets 6 and 7, a laminated bar 8 being secured to the base 1 and bent upwardly, forming laminated magnet cores 9 and. 10 which cores are bent over the top of the magnet coils toward each other. are secured at their ends to the ends of the cores 9 and 10 by'screws 13 and 1 1, the bar 11 being secured at one side of said cores and the bar 1-2'being secured at the other side of the cores. A rock shaft is journaled' in the bars 11 and 12 between the ends of the cores 9 and 10 and in a bearing ltifsecured to the base 1. On the shaft 15 between the bars 11 and 12 is secured an armature 17 formed with an overhanging arm 18 which overhangs the magnet core 9. A spring 20 is coiled around the shaft 15 and is secured at one end to Bars 11 and 12 Specification of Letters Patent. Patented A 1922 hpplieation' filed January 24, 1921. Serial No. 439,463.

its lower end by hinge 2tto the base 1 between the magnet 21 and the shaft 15, a latch 25 being formed on the upper end of the, armature forengaging an arm 26', secured on the shaft- 15, by set screw 27 to hold the shaft in position against the tension of spring 20 with the armature arm 18 close to the magnet core 9. i A spring 28 is secured atone endto a post 29 and at its other end to the armature 23 for normally holding the latch 25 in engagement with the arm 26. 'An arm 30 is secured by a set screw 38zto the shaft 15 adapted to engage the top of a post 31 secured to the base 1 to limit the clockwise movement of the, shaft 15 under the influence of the spring 20. A disk 32 is secured on the shaft 15 by set screw 33, from one side of which disk projects a pin 34:. A vertical plate 35 of insulation is mounted on the plate 1 on a stud 36 projecting from. the magnet core 22. A strap 37 is secured to the outside of the plate 35' A rock shaft 38 is journ aled in the'stud 3G, and strap 37. A time switch 40 includes two terminals 11 and -12 mounted on the plate 1 contacts 4:3 and 1 1 mounted on said terminals respectively, and a switch lever secured on shaft 38 and carrying contacts 16 and 4"? for engaging the contacts 41-3 and 41 1 respectively. To the outside of the plate 35 is secured a bracket 418 from which depends a spring; arm 19 for engaging the V-shaped upper end of the switch lever415, which has two angular surfaces 51 and 52. A crank 53 is, secured on the outer end of the shaft 38 on which crank is a crank pin 54:. On the shaft 15 is loosely mounted a lever 55 on one end of which is afork 56,, between the arms of which projects the crank pin 54. A dash pot 57 'is mounted on the base 1. The outer end of the plunger 58 is connected tothe other end 59 of the lever 55. The dashpot 57 includes a rece' tacle 60 in which is a cylinder 61 open at the top and provided with a port 62 near the bottom, which port is controlled by a needle valve 63 mounted in the wall. of the receptacle (S0. A cap 64 is screwed into the top of the receptacle and has an opening 65 through which the plunger 58 e tends and reciprocatcs in the cylinder (31. A pin 60 extends from the lever 55 toward the disk 32. A spring 67 is coiled around the shaft 15 and its ends (38 and G9 engage opposite sides of the pins 3 1- and 60. A pair of switches 70 and 71 are mounted on the base 1. The switch 70 includes a pair of clip contacts 72 and 73 secured to the base 1 and alever 7 1 of insulation secured to the shaft 15, to the ends of which lever are secured switch lades 75 and 70 for engaging said contacts respectively. A. terminal 77 is secured to the blade 76 and terminal 78 is connected to the blade 75. A wire '79 connects the terminals 77' and 78. A terminal 80 is mounted on the base 1 and a wire 81 connects said terminal and the terminal 7 7. The switch 71 includes a pair of clip contacts85 and 86 secured to the base 1 and a lever 87 of insulation se cured. to the shaft 15, to the ends of which lever are secured. switch blades 88 and 89 for engaging said contacts respectively. A terminal 90 is fixed to the blade 88 and a terminal 91 is fixed to the blade 89, which terminals are connected by a wire 92. A terminal 93 is secured to the base 1. and a wire 94 connects said terminal and terminal 90.

Referring to Figure 9, mains and 101 are respectively connected to terminals 80 and 93. Lamp leads 102 and 1.03 are connected terminals 86 and 78 and lamps 10 1 are connected to said leads. A lead 105 connects terminal 86 and one end of the coil of magnet 7 which is connected by lead 106 to the coil of magnet 6. A lead 107 connects the coil of magnet 6 and switch terminal 42. A lead 108 connects terminal. 85 and one end of the coil of magnet 21. and a lead 109 connects the other end of said coil and terminal 11. A lead 110 connects terminal 80 and switch arm 15.

The operation of our invention is as fol.- lows:

lVhen the parts are in the position shown in Figs. 2, 8, 6, 7, 8 and 9, current passes from main 100 through terminal 80, lead 110, switch arm 45, switch terminal 11, lead 109, magnet 21, lead 108, terminal 85, through main 101, whereupon magnet 21 withdraws the latch 25 from arm 26 and the spring 20 swings the shaft 15 clockwise. As the shaft turns in this direction the pin 31 carries the spring arm 68 with it and the spring arm 69 engaging pin 66 causes the lever 55 and the switch levers 70 and 71 to turn clockwise, but somewhat slower than the shaft on account of the action of the dash pct 57. The fork 56 engaging crank pin 5 1 turns the switch arm 45 countcrcloclnvise until slightly over its dead center, whereupon spring arm 19 engages surface 51 of the J-end of said switch arm and swings the arm quickly until its contact 47 engages contact 4.4, by which time the blades 76 and 89 engage the contact-s 7 3 and S6 and light the lamps 10 1; the current passing through lead 100, terminal. 80, lead 81, terminal 77, lead 79, terminal 78, blade '76, contact 73, lead 103, lamps 101, lead 102, terminal 86, blade 89, terminal 91, lead 92, terminal 90, lead 91, terminal 93 and lead 101. Current then. passes from main 100 through terminal 8(, lead. 1.10, switch arm 15, contacts 4:7 and 4141, terminal 12, lead 107, magnets (5 and 7, cad 105, blade 89, terminal 91., lead 92, terminal 90, lead 9 1-, terminal 98 and main 1.01, whereupon said magnets acting on armature 17 turn the shaft 15 counterclockwisc until latch engages arm 26 and locks the shaft 15 and disegage the blades 76 and 89 from the contacts 7 3 and 86 breaking the lamp circuit, while the pin 31 swin the spring arm 69 countcrclockwise and the arm 68 engaging pin 06 corrcspmidjiugly swings lever but the turning movement of said lever is retarded by the dash pct 57. The lever fork 5G engaging crank pin 5i swings switch lever el-5 clockwise until it is slightly over the dead center whereupon the spring arm 19 engages surface 52 and swings the arm until. its contact 40 engages contact 13. The above described operations are then repeated.

Having described our invention, we claim 1.21.11 automatic controlling switch in.- cluding a shaft, two knife switches, the blade members of said knife switches being secured on said shaft, a shaft turning magnet, the a 'mature of said magnet being secured to said shaft to turn the shaft in one direction when the magnet is energized, a spring for turning the shaft in the other direction, an arm on said shaft, a lock magnet, a latch on the armature of said lock magnet for engaging said arm when the shaft is turned by said shaft turning magnet to lock the shaft against turning in the other direction by said spring, a timing switch for controlling both of said magnets to enable said shaft turning magnet and said spring to oscillate said shaft and reverse said knife switches, and means actuated by said shaft for actuating said timing switch.

2. An automatic controlling switch including a shaft, two knife switches, the blade members of said knife switches being secured on said shaft, a shaft turning magnet, the armature of said magnet being secured to said shaft to turn the shaft in one direction when the magnet is energized, a spring); for turning the shaft in the other direction, an arm on said shaft, a lock mag net, a latch on the armature of said lock magnet for engaging said arm when the shaft is turned by said shaft turning magnet to lock the shaft against turning in the other direction by said spring, a lever loosely mounted on said shaft, a fork on said lever, yielding means on the shaft for turning said lever with the shaft, and a timing switch for controlling both of said magnets to enable said shaft turning magnet and said spring to oscillate said shaft to reverse said knife switches, said timing switch comprising a shaft, a crank engaging said lever fork, a switch arm, two contacts on said arm, and two contacts to be respectively engaged by the contacts on the switch arm.

3. An automatic controlling switch including a shaft, two knife switches,the blade members of said knife switches being secured on said shaft, a shaft turning magnet,

the armature of said magnet being secured to said shaft to turn the shaft in one direction when the magnet is energized, a spring for turning the shaft inthe other direction, an arm on said shaft, a lock magnet, a latch on the armature of said lock magnet for engaging said arm when the shaft is turned by said shaft turning magnet to lock the shaft against turning in the other direction by said spring, a timing switch for controlling both of said magnets to enable said shaft turning magnet and said spring to oscillate said shaft and reverse said knife switches,

a lever loosely mounted on said shaft for actuating said timing switch, a dash pot connected to said lever to retard its action, a disk secured to said shaft, a pin on said disk, a pin on said lever, and a spring coiled around said shaft with its ends engaging opposite sides of said pins whereby the lever is yieldingly driven by the shaft.

4. An automatic controlling switch including a shaft, two knife switches,the blade members of said knife switches being secured on said shaft, a shaft turning magnet,

the armature of said magnet being secured to said shaft to turn the shaft in one di rection when the magnet is energized, a

spring for turning the shaft in the other direction, an arm on said shaft, a lock magnet, a latch on the armature of said lock magnet for engaging said arm when the shaft is turned by said shaft turning magnet to lock the shaft against turning in the other direction by said spring, a timing switch for controlling both of said magnets to enable said shaft turning magnet and said spring to oscillate said shaft and reverse said knife switches, a lever loosely mounted switch arm having a V-shaped notch at one end and a springengaging said notch to close the switch quickly when said arm passes its dead center in either direction.

5. An automatic controlling switch including ashaft, two knife switches, the blade members of said knife switches being secured on said shaft, a shaft turning magnet,

the armature of said magnet being secured to said shaft to turn the shaft in one direction when the magnet is energized, a spring for turning the shaft in the other direction, an arm on said shaft, a lock magnet, a latch on the armature of said lock magnet for engaging said arm when the shaft is turned by said shaft turning magnet to lock the shaft against turning in the other direction by said spring, a timing switch for controlling both of said. magnets to enable said shaft turning magnet and said spring to oscillate said shaft and reverse said knife switches, means actuated by said shaft for actuating said timing switch, an arm adjustably secured to said shaft, and a stop engaged by said arm to limit the turning movementof the shaft under the influence of said spring.

In testimony whereof we afiiX our signatures. v

ROBERT W. EBELING. HERMAN J. FANGER.

Images