US1805434A - Reversing switch - Google Patents

Description

May 12, 1931. YQUNG 1,805,434

REVERSING SWITCH Filed Aug. 23, 1930 3 Shgets-Sheet l v .ig'. l.. G A A 6 8D 73 1 0 1 1 V 1 2 1 7 v Q V v Q 80 8 2 INVENTOR May 1931; F. A. YOUNG 1,805,434

REVERSING-SWITCH Filed Aug. 25, 1930 s Sheets-Sheei 2 Jill l l'l'nm May 12, 1 31.

F. A. YOUNG REVERSING SWITCH Filed Aug. 23, 1930 3 sheets sheet 3 .v Patented 12, 1931 NITE STATES PATENT v oarlcs FRANK A. YOUNG, OF mmms, CONNECTICUT, ABS IGNOB TO THE TBUIBULI- mammov IANUIACTUEING COMPANY, OF PLAINVIILE, CONNECTICUT, A CORPORATION OF comc'rr'cur BEVEBBING SWITCH Application 118a August 83, 193i). Serial No. 477,835.

My invention relates; in a eneral way, to the class of electrical switc es commonl known as double-throw switches, suc switches being enerally used for changing the line circuit roin one source of supply to another by moving one set of load connected movable contacts or blades from engagement with one set of line connected stationary contacts to another set.

While my invention possesses the general appearance and some of the characteristics of such double-throw switches,tI have provided additional movable contacts and corelated mechanism so that the movement of the contacts from one running position to another will reverse the direction of the circuit which flows from the switch to the motor or other device to be controlled or operated by the switch.

The principal object of m invention is'to provide a 'ver compact an efiicient switch construction or reversing the direction of flow of the circuit leading from the load side terminals of the switch. 7

Another object is to providea reversing switch'having the movable blades carried by an insulating rotor which rotor is pivotally mounted between the line and load side stationary contacts.

Another object'is to provide a reversing switch having the major portion of the respective blades and the necessa nectionsfor the blades enclosed tween sections of aninsulating rotor and in which the rotor sections and the blademembers may be secured together as a unit.

Another object is to provide a reversing switch having tpivotall mounted movable blades arranged fora ouble-break engagement with therespective stationary contacts.

Another object is to provide a' reversing switch having means for releasably latching the movable blades in the intermediate or off position.

Another object is to provide an enclosed reversing switch havin 'an external operating handle and interloc ing means for pre-.

venting the opening of the cover when the switch is in either ofits' circuit closing positions.

- reversing switch having v base.- Between the oppositel 'membe cross-con- Another object is to provide a reversin switch having an insulating base on whic the stationary and movable contacts may be mounted to form a separable unit which may be readily secured in operable position in the-enclosin box.

Another 0 ject is to provide an enclosed a'box, a cover for the box and a detachable saddle member and on which saddle member the entireswitch together with its operating, interlocking and latching mechanism may be mounted to form a unit which may be readil secured in posii tion in the box or rem'ov therefrom without disturbing any of the switch parts.

Another ob ect is to provide a three-wire reversing vswitch having its contacts and parts so arranged that it may be used as a double-pole reversing switch withoutchanging any of the parts or their co-relation. a 79 n the embodiment of the invention as herein shown and described, pairs of stations ary contacts are supported by an insulating disposed stationary contacts, is arrange an oscillatin cylinder which carries the movable switc rs. The central switch member is in theform of a four-armed cross with the aims at right angles to eachotheigso that when the switch is closed in either direction from a central position a direct circuit is established from the line terminal to the opposite load terminal. The end switch members are divided and one part at one end of the switch carrier is connected to the oppositely dis-.

osed part at the other endof the carrier.

e corresponding switch part at the latter end is cross connected to the oppositely disposedpart at the first endof-t e carr1er,- so that-reversal of'flow of direction of the current is eflected 'by simply turning the switch operating handle in one direction or the other from the circuit ofi position.- Other switch blades of the end units extend at right angles to the divided blades and are insulated from them. The movable switch member is made up ofa numberof insulatin SBCtIODS which carry the movable arms an are held ing my invention, with a part of the protectart broken away and the cover of the box roken.

Fig. 2 is a transverse sectional view, the

, parts being in the closed circuit position.

, Figs. 3, 4, and 5 are perspective views showing parts of the movable switch mem I ing parts of the switch. The load terminals 11, 12 and 13 are arranged along one edge of the base and the line terminals 14, 15 and 16 along the opposite edge of the base. A pair of stationary contact jaws such as 17 and 18, 19 and 20 are connected to each of the circuit terminals.

The rotatable switch member has an insulating body made up of the cylindrical portions 21, 22, 23, 24, and 26 held together by the end plates 27 and 28 and a he rod 29 which is supported on brackets 30-31. These bracketsare also connected at the top by an insulating plate 32 which covers the conducting arts and provides arc-confining channels 33 f or the movable switch members. Insulating plates 34 and 35 are interposed between the brackets 36-31 and the adjacent switch units. These plates may be formed of. insulating fibre and are supported .in ooves inthe base and cover plates. Other insulating plates (not shown) may be suported in grooves such as 36 between the adacent switch units if'desired.

The central switch member has arms 40-41, 42-43 supported in recesses between the insulating sections 23 and 24. Switch member 44 is mounted between the members 22 and 23 and preferably in a groove 45. At the opposite end of the switch carrier, a switch member 46 is mounted between the parts 24 and 25 preferably in a groove 47.

he ends of the members 44 and 46 are offset from their central portions so as to bring them into approximately the central planes of the discs 22 and 25 and in line with the passages between the jaws of the adjacent stationary contacts.

Switch blades 50 and 51 have feet positioned in grooves 52 and 53 betweenthe in;

sulating members 21 and 22. These members 50 and 51 may have lugs 54 and 55 adapt ed to project into grooves such as 56in the insulating part 21 to assist in achoring them. Blades 60 and 61 at the opposite endof the switch carrier are likewise secured between the insulating discs 25 and 26. The members 50 and 61 are electrically connected by a rod 62. The switch blades 51 and 60 are connected by a conducting rod 63. These rods pass through openings 64 and 65 in the central switch member but are insulated from it. Pins such as 66 are also preferably provided for anchoring the various switch members to the conductin project throug perforations such as 67 into recesses such as 68.

It will be understood that the rods 62 and 63 extend through the switch blades 50, 51 and 60 and 61 aswell as the intervening insulating members 22, 23, 24, and 25 so that they may assist in securing the parts together independently of the central tie rod 29 which serves as a main shaft or bearing 1 ior the switch carrier.

In the form shown the contact mechanism and the supporting base 10 are mounted on a plate 70 which has a tongue 71 interlocked in the corner of the box 72. This bottom plate 7 0 has. a side flange 73 which serves as a closure for one side of the box and which carries the handle 74 and the switch actuating mechanism as well as interlocking mechanism 75 of suitable type.

cylinder. These pins may The hub of the handle has an interior fork 7 arm 76 engaging a pin 7 7 which is carried by the end plate 28 of the oscillating switch carrier. An arm 80 is hinged at 81 to the side plate 73 and is pressed by a spring 82 toward the cam 83. This spring 82 and arm 80 thus coact with one or more flattened surfaces 84 and tend to hold the handle and movable switch parts in the open circuit position and to resist movement of the operating handle toward the closed circuit position. Normally in the open circuit position the handle 74 projects at right angles to the main plane of theswitch. The flanges 85 and 86 serve as limiting stops to the movement of the handle and for the attachment of the padlocks or sealing wire for lqckingthe handle nected tocircuit terminal 14 is electrically connected through the rod 62 to the blade 61 which is connected to the circuit terminal 13 and the blade '51 which is connected to the terminal 11 (throu h the stationary contact blades not shown) is connected through rod 63 to blade 60 and thence to terminal 16.

It will thus be seen that I have provided a threepole double break, reversing switch which is very compact and, et fully protected by insulation. -All of t e partsare so constructed and mounted that they can bereadily inserted as a unit into an installed the line wires to terminals 14 and 16 and the load side wires to terminals 11 and 13 and leaving the central or neutral switch'members unused.

Obviously the combination of elements shown and described may beelectrically connected or wired so as to roduce difierent directions of the path of t e electrical'circuits. Although 14, 15 and 16 have been described as line terminals, it is readily apparent that the line wires ma be, secured to terminals 11, 12 and 13, inw ich case 14, 15 and 16 be-v come the load side terminals.

1 claim:

1. A reversing switch including at least two pairs of stationary contacts, a switch member rotatable between said contacts and comprising a number of insulating members, two airs of divided conducting. blades each air eing secured between two of said insuating members, two double ended blades each secured between two of said insulating members, and having contact portions in the same lane as the contact ends of the divided lades of each air and rods connecting each i of the divide blades with the oppositely disposed member of the other pair of divided blades.

2. A switch including stationary contacts and an oscillatin carrier having three switch units mounted t ereon, one unit com rising a conductor having four connected lades, each of the other units comprising a double ended blade and two half blades with their contact ends in the same lane as the contact ouble ended blade,

ends of the associated but at substantially right angles thereto and conducting'rods connecting the half blades of one unit with the opposite half blades of the other unit.

. an oscillatableinsulating carrier, a series 0 3. A switch comprising stationary contacts "switch blades carried thereby for engagementoscillating the carrier, a cam member carried with the contacts,- a handle connected for by the'handle and having a flattened portion and a spring pressed lever coactingw th said flattened portion for holding t 'yieldingly in the ofi osition. V

e-'- carrier 4. A reversing switc including three pairs of stationary-contacts, a'switch member rotatable between said contacts and comprising a number of insulating members, a air of divided conductin blades secured tween some of said members, double ended blades secured between some of said members, and

having contact portions' in the'same planes as the contact ends of the corresponding divided blades, rods connecting halves of the diviided' blades with the o posits halves of the other divided blades an ,a four bladed switch memblade but at substantially right angles thereto, and conducting rods connecting the half blades of one umt with the opposite half bladesof the other unit and means for yield ingly holding the carrier in the open circuit sition. j

,6. A switch comprising stationary contacts, an oscillatable insulatin K switch'unit carried thereby and aving four carrier, a

spaced blades projecting at approximately ninety degrees apart for engagement wit some of the" contacts, anditwo other units carried by the carrier and each unit having two blades cross-connected within the carrier, a handle connected for oscillating the carrier, a cam member carried by the handle and having a flattened portion and a s ring pressed lever coacting \with said flatten tion for holding the carrier yieldingly in the off osition.

unit carried thereby and having four projecting blades s aced at approximately ninety degrees aroun the carrier for engagement with some of the contacts and two other units carried by the carrier and each having two blades cross-connected within the carrier.

8. A. reversing switch includin pairs of stationary contacts, a switch mem r rotatable between said contacts and comprising a number of insulating members, a four armed blade secured between two of said insulating members, a pair of divided conducting blades secured between 'two of said insulating members, double ended blades secured between two of said members, andhaving contact portions in substantially the same plane as the contact ends of the divided blades, and rods connecting halves of the divided blades with the opposite halves ofthe other divided blad 9.

por-

switch compris'ng stationary contacts, an oscillatable insulating carrier, a switch A switch including stationary contacts and-an oscillating carrier consistin of insu lating sections and having three switch units mounted thereon, one unit comprising a blade having four connected contact portions, each of the other units comprisin a double ended blade and .two half blades'with their contact ends in the same lane as the contact ends of the associated ouble ended blade'but at I substantially right angles thereto, conducting having a contact rods connectingth'ehalf blades of one unit with the opposite half blades of the other unit and a central tie rod connecting all of the insulating sections.

5 10. A switch comprisin stationary contacts, an oscillatable ins ating carrier, a

for holding the carrier yieldingly inthe ofi position. b

11. A reversing switch including at least two airs of stationary contacts, a switch 'meml er rotatable between said contacts and comprising a number of insulating members, positioning pins connecting said insulating members, a pair of divided conducting blades and adouble ended blade secured between two of said members, the contact end of said 95 double ended blade being in the same plane as the contact ends of the divided blades and rods connecting halves of the divided blades with the opposite halves of the other divided blades. 12. A switch including stationary contacts and an oscillatin carrier havin three switch units mounted t ereon, one unit compris ng a conductor havingjiour integral pro ecting blades, each ofthe other units comprising a double ended blade and two half blades with their contact makin ends in substantially the same plane as t a contact making ends of the associated double ended blade, 'conducting rods connecting each of the half blade 4 members of one unit with the opposite half blade member of the other unit and means for yieldingly holding the carrier in its off position. 13. A reversi switch including an insulating base, are of stationary contacts mounted on sai base, an insulating blade carrier pivotally'mounted between the respective pairs of stationary contacts and two sets of switch blades, each set including a blade rtion at each of its opposite ends and a pair of separated blades, each blade havin a contact portion at one of its ends, all of t e-members of each set of blades being-mounted inco-related position on said 5 carrier with all of the said contact portions rojecting inthe same plane and each memer of each of one of said, pairs of blades being electrically connected with an oppositel disposed blade of the other said pair. ofbades. x 14. A reversing switch including an insulating base, pairs of stationary contacts mounted on said base, an insulating blade carrier mounted between the respective pairs oat-stationary contacts, a switch blade mountpalr of b a es.

. all of the members of each set of blades being mounted in corelated position on said carrier with all of said contact portions in the same plane and each blade of each of said pairs of blades being electrically connected with an oppositel rojecting blade of the other said 15 A reversing switch including an insulating base, pairs of spaced stationary contacts mounted on said base, a blade carrier mounted between the respective airs ofstationary contacts and com osed 0 sections of insulating material toget er with means for securing) said sections together as a unit, a switch lade mounted between two sections of said carrier and having four projecting contact portions and two sets of corelated blades, each set including a blade having a projecting contact portion at each of its-opposite ends and a co-related pair of blades each having a single projecting contact portion, all of the members of each of said sets of blades being mounted between other see- ;tionsof said carm'er with all of the projecting contact portions in the same plane and each member of each of said pairs of blades being electrically connected with an oppositely projecting member of the other pair.

16. A reversing switch including at least two airs of stationary contacts, a switch mem er rotatable between said contacts and comprising a number of insulating members, a pair of divided conducting blades secured between some of said members, double ended blades secured between some of said members one bein in the same plane as the ends 0 I the divi ed blades of eachpair and rods connecting halves'of the divided blades with the opposite halves of the other divided blades.

17. A switch comprisin stationary contacts, an oscillatable insu ating carrier, a switch unit carried thereby. and having four projecting blades spaced at approximately ninety degrees around the carrier for 00- acting withsome .of the contacts, a handle connected for oscillating the carrier, a. cam member carried by the handle and having a 120 flattened portion and a spring pressed lever coacting with said flattened portion for holding the carrier yieldingly in the 01! pqsj- 18. A reversing switch including pairs of stationary contacts, a switch member rotatable between said contacts and comprisin a number of insulating members, a four armed plate secured between some of said insulating members, a pair of divided conducting blades secured between some of said insulated members, double ended blades secured between some of said members, one being in substantially the same plane as the ends of the di- 5 vided blades of one pair and rods connecting halves of the divided blades with the 0pposite halves of the other divided blades.

19. A reversing switch including at least two pairs of stationary contacts, a switch 10 member rotatable between said contacts and comprising a number of insulating members positioning pins connecting said insulating members, a pair of divided conducting blades secured between some of said members, double ended blades secured between some of said members, one being in the same plane as the ends of the divided blades of each pair and rods connectin halves of the divided blades with the opposite halves of the other divided blades.

. FRANK A. YOUNG.

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