US1286996A - Selecting-switch. - Google Patents

Description

0. L. eoomwm & J. A. KROPPY SELECTING SWITCH.

APPLICATION FILED OCT. is. 1916.

Patented Dec. 10, 1918 M x m y 6 a i 5 W m 0 0 l; n r .fl 1||J 9 e 4. H A U 4 4 M i 5 H w 6 4 u m in Q 7 2 JWW u 0 0.0 a 5 2 7 I i 4 i\ m C Fig. 6.

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CEABLES L. GGQDEUM, OF 3136915131 33",

NEW YORK, AND 301-111 A. KROPP, OF 0.5K PARK,

ILLINQIS, ASSIG-NORS T6 WESTERH ELECTRIC OGMPANY, INCORPORATED, OF NEW YQEK, I l. Y., A CORPGEATIQN 033 NE'W YORK.

felELEGTING-SWZTCH.

I Specification of Letters Patent.

Patented Dec. 10, 1918.

Application filed October 13, 1816. Serial No. 125,463.

Selectin -Switches, of which the following is a full, clear, concise, and exact description. This invention relates to selecting switches of the two-movement type.

The purpose of the present invention is the production of a switcutilizing a single motor for actuating the switch in its several movements to place the active contacts of the switch into engagement the desired passive contacts.

In the specific embodiment of the invention herein disclosed, the operating motor is actuated on the restoration of the swimh to its normal position to store up energy for the next operation of the switch.

Referring to he drawings, Figure l is a the SWliLCll, with portions broken away for clearness iii illustration; Fig. 2 is a front elevation of the lower portion of the switch; Fig. 3 is a sectional plan view taken on the line 33 of Fig. 2; Fig. l is a sectional view taken on the line ;d of Fig. 1; Fig. 5 is a plan view taken or). the line 5-5 of Fig. 1; Fig. 6 is 'a plan view partly in section taken on the line 66 of Fig. 1; Fig. '7 is also a plan view taken on the line 7- of Fig. l.

Referring in detail to the drawings, 10 designates a brush-carrying element or shaft mountedfor vertical and rotary movement in a frame (not shown). This shaft 10 carries brushes 11, which engage contacts 12 of a switch bank 13. The shaft, near its inter provided with vertical ratchet teeth 14, which are engaged by a vertical escapement member 15 carried by the armature 16 of a vertical magnet 17. The shaft is also provided 1 ith rota v ratchet teeth 18, which are epgaged by the rotary escapemen't armature 20 of a rotary magneto?! The switch is provided with a spring motor which is rewound each time that the member l l' oarried by the switch is restored to its normal This spring motor, the details of w herein later described, actuates the shaft in its upward vertical and rotary step-by-step movements which are controlled by the vertical and rotary escapement members 15 and 19.

A cylindrical a notchm flange osition. ich are 23 and a rectangular openmember 22 provided with log, is mounted to rotate on the shaft and is attached at as to a spiral spring This spring is coiled about the vertical shaft and has its other end attached to a collar 26, which is securely attached to the shaft. A pin 26 carried by collar 26 operates in the rectangular opening in member 22 to limit the rotary movement of this member with respect to theshaft. The cylindrical memher is also provided with a spiral groove in which a pin 2? carried by an arm attached to the armature 28 of release magnet 29, rides to wind up the spring. A. verticalguide rod 32 carried by the frame, serves as a stop against which an arm 33 attached to the cylindrical member engages when the spring is unwound.

The means for rewindiug the spring motor consist of a collar 34 loosely mounted on the shaft and provided with a notched arm 35, as best seen in Fig. 4. Thisarm engages and is guided by the vertical guide r0d32. A spiral spring 52 is secured at one of its ends to arm 35 and at its other end to the hub of arm 33. This spring is placed under tension as soon as arm 33 is moved out of engagement with guide rod 32, when the brushes 11 are rotated. A link 36 is attachcd at one end to collar 34, and its other end is pivotally attached to arm 37 of a bell crank 38 which is pivoted to the frame; The other arm of the lever 38 is pivotally attached' at 40 to a horizontally movable arm 41, which terminates in a hook 42. This arm 41 is provided with an integral upstanding lug 43, the purpose of which will be hereinafter described. The longitudinal movement of the member-.41 is guided by slotted link 4-1, which is secured to the frame. A spiral spring, the ends of which are secured respectively to the link 44: and the frame of the switch, tends to move the member 41 in a vertical direction whenever this element is free to move. The hook 42 of member 41 is adapted to engage a lug 47 carried by a bar 48. This bar is mounted for intermittent or continuous reciprocating motion generated by a motor or any other source of power not shown in the drawings.

7 If it is desired that bar 48 have reciprocating motion only when one of the switches is unwound, the motor may have its operating circuit closed by contact springs 60, which are brought into engagement by the shaft 10 when it reaches its lowermost position.

49 designates the escape magnet whose. armature 50 carries the movable escapement elements 51 of well-known structure, which control the escapement of triangular projection 53 carried by the arm of a pivoted block 54 of the side switch. Brushes 55 carried by block 54 engage contacts 56 to complete switch-operating circuits which are well-known to those skilled in the art. The

side-switch block 54 carries a tensioned pawl 57 which engages with the upstanding lug 43 to move the side. switch into its normal position when the switch is being restored to normal.

The restoration of the switch to its normal position isaccomplished as follows: The release magnet 29 is energized to attract its armature 28, thus withdrawing its pin 27 from the spiral groove of the cylindrical member 22. The cylindrical member then rotateson the shaft to release the tension stored up in spring 25. The coil spring 52 then rotates the shaft and the cylindrical --member which it carries, until the pawl 58 supported by the frame encounters notch 59 in the flange 23 of the cylindrical member,

whereu on the shaft drops to released position.

he shaft in its lowered position causes hook 42 to engage lug 47 of the reciprocating bar 48. The movement of hook 42 through the agency of the bell-crank lever operates to elevate the cylindrical member 22 and wind up spring-25. The shaft 10. will be elevated with the cylindrical member 22 until the uppermost tooth of the vertical ratchet 14 is engaged by the vertical escapement member 15. As the member 22 is raised, it is also rotated to wind up the spring 25 when the pin 27 rides in the spiral groove of member 22.

The pawl 58 engages the flange 23 of the cylindrical member to hold the shaft elevated in its normal position. f l

I It should be noted that the escapcment -membef 15 and the uppermost vertical ratchet tooth are sufficiently spaced to permit slight upward movement of the shaft,

due to the hook 42 riding over lug 47 whenever the switch is released on the return stroke of rod 48.

The present disclosure is merely illustrative of applicants invention, and the device herein shown is'capable of'many modifications and variations which will be suggested to those skilledin the art, limited only by the appended claims.

What is claimed is: w V

1. In a selecting switch, passive contacts, active contacts, an element carrying said active contacts mounted for movement in twodirections, a spring motor for operating the brush carrying element in its several selecting movements, means for controlling these movements, and means for'restoring said element to normal position.

' 2. In a selecting switch, passive contacts, active contacts, an element carrying said active contacts mounted for movement in 4. In a selectlng swltch, passive contacts,

active contacts, a shaft carrying said active,

contacts, said shaft being mounted for vertical and rotary movements, a spring motor for actuating said shaft in-it's several movements, means for controlling'these movements, means for releasing said shaft, and means for rewinding said spring motor.

5. In a selecting switch, passive contacts,

. active contacts, a shaft carrying said active contacts, said shaft being mounted forvertical and rotary movements, a motor for actuating said shaft in its several movements, directively operated escapement means for governing said movements, means for controlling .said esca ement means, means to release said shaft, and meansto restore said motor and escapement-controlling means to normal position.

6. In a selecting switch, passive contacts,

' active contacts, a shaft carrying said active contacts, said shaft being mounted for vertical and rotary movements, a motor for actuating said shaft in its several movements, directively operated vertical escapement means, and directively operated rotary escapement means for governing said movements, means for controlling said and rotary escapement means, means to revertical lease said shaft, and means to restore said motor and escapement-controlling means to normal position t0 mama} pesitien.

L in WifiileSS whereof, I hereunto subscribe acawa cemfiacts, an elemenfi carrylng sald. my name fins 11th day of-October A. D., 10

a ctwe contacts meuntiad far movement 1n 191-3.

W0 airectlons, a smgle sprlng for operatmg CHARLES L. GOODRUM.

, 2 (Want in it 3 S ff mg m E21 WZZIAGSS Wheresi, I hereunto subscrlbe meats, mgans for comrolhng mess move- In name this da of Se t A D 1916 meats, and means-fer rastormg sald element 7 y p JUHN A. KROPP.

Z. In a seificting switch, massive contacts,

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