Page:Patent for Switch US1206734.pdf/2
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UNITED STATES PATENT OFFICE. writiAM. A. SPALDING, OF Los ANGELES, CALIFORNIA. swiTCH. Specification of Letters Patent.
Patented Nov. 28, 1916.
Application filed May 16, 1913. Serial No. 768,169. To all whom it may concern: latter springs are normally oper) across their . . . Beit known that I, WiiLAM. A. Sea-D- extremities when they assume an inclined . ING, a citizen of the United States, residing position relative to each other similar to that at Los Angeles, in the county of Los Angeles shown for springs 3 and 4, but in Fig. 3 said.
5 and State of California, have invented a springs and 8 are shown with the metallic so new and useful Switch, of which the follow pin or closing means 9 connecting same so ing is a specification.
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This invention relates to means for closing two separate electrical circuits, and among
as to close the circuit. r formed by leads 5 and 6. .
For each electrical circuit there is pro
10 other objects it seeks to make such provision vided a separate but identical set of closing 65 that when one of said electrical circuits is means andlocking and operating mechanism closed, the closing means is locked in posit. for same, which will now be described. . . tion so as to keep said circuit closed until The pin 9 and element 10, Fig. 1, consti the person having control over the locking tute a movable member which is pivotally
15 ing means releases it. It also has an interlock. mounted at 11. The weight of this member to feature such that when one of said elec may be so balanced as to normally withdraw .
trical circuits is closed, the other cannot also itself into the dotted position shown in Fig. 1, in which event the circuit across leads 5 and 6 will be open in manner similar to the circuit across leads 1 and 2, Figs. 1 and 3.7s For the purpose of operating the circuit closing means, however, the same is con this type is mounted at each, legislator's necte through standard 12 to push button : . desk and by closing one of the electical cir. 13. This button is normally adapted to ex 25 cuits he would register an aye vote, on a tend up and beyond the aperture 14 in a 80 question before the house, while by closing plate 15, the said plate 15 preferably being the legislator's desktop in cases where the e other of said circuits he would register a switch nay vote. . . . . . . ... . . . . is used for taking the legislative vote. y making the provisions above set forth, Normally the balance of member 10 would
be closed. A switch such as this may have. various uses, but I particularly contemplate 20 using it in connection with a voting . . . . . system installed for deliberative bodies such as state . legislatures, etc. In this case, a switch of
... so a legislatoris prevented from voting on both move the push button 13 up and out through 85 : sides of the question and is also prevented the plate to its dotted position, as shown in ...
from changing his vote after it is once Fig.1. In this event, the circuit across leads. east-at least so far as the operation of this 135 and 6 would be open, but when the button. . . device is concerned. . . . . . is depressed to its full line position, the S5. The accompanying drawings illustrate the pin 9 would close said circuits, as shoynin 90 invention.
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Figs. 1 and 3. When the circuit closing
- Figure 1 is a section online a -a, of means is thus closing its circuit, locking. Figs 2 and 3, through a casing inclosing the means shown in the form of holding mem switch. Fig. 2 is a section on linea-ta', ber such as an electromagnet 16 adapted to 40 Figs. 1 and 3, through the casing inclosing be energized is provided for locking the 95. the switch. Fig. 3 is a top view showing a member 10 in closing position. This electro fragment of the casing broken away so as to magnetis provided with leads 17 and 18, display the switch. .. . ' for instance, may be connected to a The arrangement for forming two elec which, master switch at the speaker's desk. The 45 trical circuits which have already been re electromagnets at each legislator's desk may 100 ferred to and which are normally open, may be connected to the same master switch so. be best seen by reference to Fig. 3. The one that the speaker, just prior to calling for a circuit is formed by the leads and 2 of the vote, may close said switch and energize the switch which are electrically connected to electromagnets 16. If the legislator then: 50 springs 3 and 4, respectively, which springs voted by depressing button 13, a wrought 105 are seen to be electrically open or discon- . iron armature 19 which is carried by element . nected across, their extremities. The other 10 would be brought under.the influence of circuit is formed by means of leads 5 and 6 the electromagnet substantially at the same of said switch which are electrically connect time when pin 9 closed its circuit. The
ed to springs 7 and 8, respectively. The wrought iron armature would obviously be ino . . '.
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