US1462684A

US1462684A - Lock switch

Info

Publication number: US1462684A
Application number: US125788A
Authority: US
Inventors: Harry A Clum
Original assignee: Clum Manufacturing Co Inc
Current assignee: Clum Manufacturing Co Inc
Priority date: 1916-10-16
Filing date: 1916-10-16
Publication date: 1923-07-24
Anticipated expiration: 1940-07-24

Description

July 24, 1923.

H. A. @LUM n LOCK SWITCH Filed Oct. 16. 1916 2 Sheets-Sheet l ATTO/Q/vyg 4July 24, 1923.

, 1,462,684 H. A. @LUM LOCK SWTCH Filed Oct. 16, 1916 2 SheatsV-Shest 2 /M/iA/TUR ATTURN/ZYE Patented July 24, 1923.

UNITED STATES PATENT oFFlcE.

HARRY A CLUM, OF WAUWATOSA, WISCONSIN, ASSIGNOR TO 'CLUM MFG. CO., OF MILWAUKEE, WISCONSIN.

LOCK SWITCH.

Application filed October 16, 1916. Serial No. 125,788.A

To al? whom it may concern:

Be it known that I, HARRY A. CLUM, a citizen of the United States, and resident of lVauwatosa, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Lock Switches, of which the following is a description, reference being had to the accompanying drawings, which are a part of this speciiication.

This invention relates to improvements in lock switches more particularly, although not solely, adapted for controlling electric ignition and lighting circuits.

In automobiles or other self propelling vehicles it is the usual custom to provide' means for locking the switch controlling the ignition circuits to prevent the surreptitious use of the vehicles. It is also the custom to combine both the ignition and the lighting switch in a unitary structure to reduce cost and size, and when thus combined only the ignition is locked. This arrangement permits the surreptitious turning on of the light circuits and consequently considerable current is wasted and at times the battery is exhausted.

Furthermore the sparking at the points of the ordinary make and break contacts causes injurious pitting and sticking of the parts and is not conducive to the smooth running of the engine controlled by the switch.

It is one of the objects of the present invention to overcome] the before mentioned objectionable features and provide a unitary lock switch for controlling both ignition and lighting circuits in which the switches controlling both circuits may be locked by a single key.

A further object of the invention is to provide a lock switch in which one of theswitches is unlocked by the insertion of a key and the other switch is unlocked by a partial turning of the key, both switches being automatically locked when the key is withdrawn from the lock.

A further object of the invention is to provide a lock switch in which the polarity of the contact points of the ignition switch is automatically changed each time the` switch is turned off and on to eliminate the injurious pitting and sticking of the contact points.

A further object of the invention is to provide a lock switch in which the parts are locked together by means of a plurality of reclprocal tumbler plates controlled by a key having its opposite edges of reverse irregular shape.

A further object of the invention is to provide a lock switch in which the key is locked to the switch and can not be removed while the ignition portion of the switch is in the on position.

A further object of the invention is to provide a lock switch in which the parts may be assembled in construction or separated for repairs in a very simple manner.

A further object of the invention is to provide a lock switch in which the ignition circuit portion of the switch may be locked by turning the key to any one of a plurality of positions. a I

A further object of theinvention is to provide a lock switch which is of simple construction, is strong and durable and is well adapted for the purpose desired.

With the above and other objects in view the invent-ion consists of the improved lock switch and its parts and combinations as set forth in the claims, and all equivalents thereof.. A

In the accompanying drawings in which the same reference characters indicate the same parts in all of the views:

Fig. l is a front view of the improved lock switch Fig. 2 is a rear view thereof;

Fig. 3 is a central vertical sectional view taken on line 3 3 of Fig. 2;

Fig. 4 is a central horizontal sectional view taken on line 4.-4 of Fig. 2;

Fig. 5 is a transverse sectional View taken on line 5-5 of Fig. 3;

Fig. 6 is a similar view taken on line 6-6l of the same figure;

Fig. 7 is a sectional detail View taken on line 7-7 of Fig. 3 with the key shown within the lock;

Fig. 8 is a sectional detail view similar in part to Fig. 4 with the key shown as withdrawn from the lock portion;

Fig. 9 is a sectional detail view similar to Fig. 7, the key having been withdrawn from the lock;

Fig. l() is a detail view of a portion of the casing; and

Fig. 11 is a diagrammatic view of the electrical connections showing the switch members in their oli'l positions.

Referring to the drawings the numeral 12 indicates the casing or support, 13 the torwardly projecting tubular extension or barrel and 14: the rear cover or plate which is formed ot insulating material. The casing is of cup-like shape with its bottom portion 12 forming the front end of the casing and on which end a dial plate 15 is rigidly mounted. The central portion of the casing end is provided with an opening 16 to receive the inner open end of the extension or barrel 13 which is also rigidly connected thereto. rllhe casing barrel 13 is formed ot comparatively thin metal and is provided with elongated peripheral locking slots 17 and an outer end opening 18 oi less diameter than the bore 19 of said barrel to torni an annular shoulder 20. The locking slots 17, ot which there are preferably four, are spaced equi-distant circumferentially from each other and are of a width corresponding to the width of the transversely extending tumbler slot 21 of the lock cylinder 22 which is revolubly mounted in the barrel 1S.

'llhe lock cylinder 22 is formed lwith a reduced forward end portion 22 which projects through the reduced outer end opening 18 of the barrel and the shoulder 23 formed by said reduced portion vabuts against the shoulder 2O of the 'barrel and properly positions the two parts with respect to each other. A key slot 211 of irregular sha-pe transversely extends longitudinally through the central portion of the lock cyl- V inder and intersects the transverse tumbler slot 21. 'A key 25 having its two opposite edges 26 of reverse irregular shape and its width approximately the same throughout its tumbler engaging portion, is shaped or corrugated transversely to fit the key slot and is adapted to extend through the elongated medial openings 27 of he fiat tumblers 28 reciprocally mounted in the cylinder slot lwhen said key is inserted in the key slot.

shape' conforms approximately to the edge contour of the portion of the key engaged by the tulnblers'when said tumblers are in alined unlocked position as shown in F ig. li. l/ihile the tumblers are arranged to fit the particular key shown it is obvious that the arrangement/0I" the tumblers may be changed or the distances between the medial openmay be variedtol rit various shaped incassakeys so that no two locks may be controlled by the same key. When the key is withdrawn from the lock the tumbler openings will be in alined position with respect to each other and the outer ends of the tumblers will be out of alinelnent with each other and project through the locking slots 1T ot the barrel 13 and lock the cylinder to the barrel. rllhe opposite ends of the tumblers 28 are notched or recessed transversely as indicated by the numeral 29 to receive the inwardly extending radial locking ribs or teeth 30 of the hub 31 ot' the locking switch lever The said hub portion 31 surrounds the barrel and the outer projecting end ot the cylinder' and bears against the iace otl the dial with an annular portion 33 of the hub extending into the center opening 84e of the dial 15. The locking ribs or teeth 30 bear against the periphery ot the barrel and are so positioned as to register with the locking slots ot the barrel when the switch lever is turned to either one of its three positions to permit the outer ends ot the tumblers to project through the barrel slots and into the interspaces ot the teeth of the switch lever and thus lock the cylinder and the switch lever to the barrel.

The hub portion of the switch lever is maintained in position against endwise movement on the barrel by means ot a segmental member which bears against the inner face of the end of the casing and is provided with projecting lugs 36 which extend through diametrically opposite segmental slots 37 in the casing end and engage the inner face of the lever hub. Screws 8S extending through the segmental member and the segmental slot-s and threaded into the lever hub secure the two parts together.

rllhe peripheral locking slots 17 of the barrel are spaced equi-distant 'from each other in pairs diametrieally opposite to each other so that the lever and the cylinder may be locked to the barrel when the key is turned into register with the barrel slots, and

when the key is turned to an intermediate position it will register with the sidef portions 39 of the barrel between theslotsand these side portions will prevent the recip- 'z rocation of the tumblers tmm their innermost position and prevent the withdrawal ot the key from the lock.

ln order to insure the rotation ot the cylinder always in the same direction the inner end portion of the cylinder is formed with ratchet teeth 4() which are engaged by a spring actuated dog 41 mounted on the inner face of the easing end.

The periphery of the segmental member 35 is formed with notches or recesses 452 which are respectively engaged by a medial portion ot the resilient dog 4:3 positioned within the casing. These notches correspond to the three positions or switch liti lever and releasably hold the lever in either one ot its positions.

The casing 12 is provided with a cup shaped movable partition 4d having a centra] opening #l5 and a locking linger t6 projecting inwardly from the annular tiange i7 of the partition. rlihe partition tits within the casing with its flange extending outwardly and its inner. end portion isrigidly connected to the segmental member and to the switch lever by the rscrevrs 38 betere mentioned.

A lighting contactv ring d8 positioned within the casing and the flanged portion i7 ot the partition is formed with peripheral locking recess 19 to vreceive the locking finger 46 of said partition and cause said ring to turn with the partition. The contact ring is ormedof insulating material and its rear side face is provided with an annular groove 50 and three recesses 5l intersecting said groove to receive lighting contact plungers 52 reciprocally mounted therein. `The lighting plungers 52 are elec-l trically connected together by a flexible cable 53 and are provided with coiled springs 54 to resiliently maintain their working ends bearingl against the inner face ot the rear cover or plate 14. The said plate 14.- is provided with lighting contacts 55 in circumterential alinement with the plungers 52 and these contacts are adapted'to be connected to lighting circuit wires56 and wire 57 leading to a battery or other source of electrical energy. These connections provide for turning the

respective lamps

58, 59 and 60 on or'otf las' the plungers are swung into or out of engagement with the cont-acts by means of the switch lever 32. The combination of lamps shown may be changed in any manner desired without departing trom the spirit. and scopei of the invention.

An ignition switch member 6l positioned within the bore of the lighting ring member 48 is removably connected to the lock cylinder 22 by pins 62 which project from the inner end of the cylinder and enter recesses 63 in the switch member 61. This switch' member 61 is provided with four rearwardly extending spring pressedcontact plungers 6l and 64, similar to the lighting contact plungers 52, which ar'e connected together in pairs by fiexible electrical cables 65 to permit independent reciprocation oit' said plungers in the recesses. 66 oit` `the said switch member 61. These contact plungers 64 resiliently bear against the inner lace or? the rear plate 14 and are movedinto engagement with four

ignition contacts

67 and 67 which are mounted in said plate. @ne of the contacts 67 is connected to the bat tery Contact 55 by a wire 68 and one of the contacts 67 is connected to a .binding post 69 by a wire 70 and from thence to ground by a ground circuit wire 71.l The/other two`

contacts

67 and 67 are connected to an ignition coil 72 or other device by circuit wires 78 and 7-2 and spark plug 75 is shown as connected to thev coil and to the ground. By the provision oit the pairs of plungers 54; and 6d and the

contacts

67 and 67 every quarter turn of the key 25, .which turns the ignition switch member 61, will reverse the polarity of the ignition circuit and eliminate pitting and sticking at the points of maire and brealr between the plungers and the contacts. A-.s the lock cylinder can only be turned in one direction each time the ignition is turned oli and on the said polarity will be automatically reversed.

rlille rear cover or plate 14 is removably held in position by means of three

pins

76 and 77 which engage bayonet slots 78 and an opening 7 9 in the case. The pins 76 are inserted in the bayonet slots andthe plate is turned a slight distance'until the pin 77 which is of a spring plunger type is in register with the opening 79 to permit the pin to be forced outwardly into locking engagement with the opening 7 9 of the casing.

Assuming that the parts of the switch are in the position shown in Figs. 1 and 11 both the ignition'and lighting circuits are broken or disconnected and if the key be withdrawn from the switch both switch members will be locked in the oii position. lf the key is now inserted the tumblers willbe reciprocated to permit the lighting switch to be turned to complete the circuit to the head lights or to the dimmer without in any man- Bilv roc

ner adecting the ignitioncircuits. lf it is now desired to complete the ignition 4circuits 4the lrey is given a one eighth turn or the distance of one locking dog tooth and this 'movement will complete the ignition circuits in reverse polarity 'from the previous on position and at the same time lock the lrey in the cylinder as the tumblers are in alined position with the side portions of the barrel and cannot be reciprocated to permit the withdrawal oit the key. llt will also be noted that in turning the ignition circuit on or oil1 that the lighting circuit switch is not moved Vtrom its position oil adjustment.

t will also be noted that while both j switch members may be.. independently moved while the key is in the cylinder that when the key is withdrawn both switch .members are. in'locked position and the ignition switch member is in ofi' position.

From the foregoing description it will be seen that the loclr switch is of very simple llO ico

construction and is well adapted for the puri pose described.

"What l claim-as my invention is:

1. A lock switch, comprising a casing provided with a projecting tubular lportion; a rotary switch element mounted within the casing, an oscillating switch element mounted within Athe casing, ia member controlling themovement of one of the switch elements positioned to surround the'tubular casing portion, a member controlling the l bular portion.

2.V A loclr. switch, comprising a casing provided with a projecting tubular portion, a rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, @member controlling the movement of one of the switch elements positioned .to surround the tubular casing portion, a member controlling the movement of another switch element position'ed within the bore of the tubular casing portion, and means locking both of the switch element moving members to the casing tubular portion.

3. A lock switch, comprising a casing provided with a tubular portion, a rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, means for preventing the retrograde rotation of oneof the switch elements, a A member wirthin the tubular portion for rotating the last mentioned switch element, a member controlling the movement of another switch element positioned to surround 'the tubular casing portion and having a limited movement in either direction, and means carried by the member within the casing tubular portion for locking one of the switch element controlling members to th ltubular casing portion.

4:. A lock switch, comprising a casing provided with a tubular portion, a rotary switch element mounted within the casing, an oscillating switch element mounted within the Vcasing,vmegins for. preventing the retrograde rotationof one of the switch. elements, a member within the tubular portion for oscillatin the last mentioned switch element, a mem other switch element positioned to] surround the tubular casing,portion v`and having a limited movement in either direction, and a plurality of tumblers carried by the member Within the casing tubular portion' for locking one of the switch element controlling members to the tubularcasing portion.

5. A lock switch, comprising a casing provided with a tubular portion, a rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, means for preventing the retrograde l rotation of one of the switch elements, a

,v the tubular `Casin limited movement in either direction, and a 'member within the tubular portion for rotatin the last mentioned switch element, a mem r controlling ,the movement of another switchv elementl positioned to* surround portion and having a r controlling the movement of 'anplurality of tumblers carried by the mem ber within ,the casing tubular portion for locking both of the switch element controlling members to the tubular casing portion.

6. A lock switch, comprising a casing provided r'with a tubular portion having a peripheral opening, a rotary switch element mounted within the casing, an oscillating switch element mounted within Ithe casing, a locking cylinder mounted within the tubular portion and rotating one of the switch elements, a m'ember for rotating the other switch element position to oscillate around the casing tubular portion, a plurality of tumblers carried by the cylinder and movable through the peripheral opening of the casing tubular portion and into locking engagement with the oscillatory member, and a key insertable in the lock cylinder for controlling the movement of the tumblers.

7. A lock switch, comprising a casing provided with a tubular portion having a peripheral opening, a rotary switch element mounted within the casing, an oscillatingr switch element mounted withinthe casing, a locking cylinder mounted within the tubular portion and rotating one of the switch elements, a memberrfor rotating the other switch element positioned to oscillate around the casing tubular portion, a plurality ot' tumblers carried by the cylinder and movable through the peripheral opening of thc casing tubular portion and into locking engagement with the oscillatory member, said tumblers having medial lkey engaging portions which are alined with each other when in locking positions, and a key insertablc within the cylinder for moving the medial aliied portions out of alinement with eachv other to unlock the switch.

8. A lock switch, comprising a casing provided With a tubular portion having a pcripheral opening, a rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, a

locking cylinder mounted within the tubular portion and rotating one of the switch elements, a member for rotating the other switch element positioned to oscillate around the casing tubular` portion, a plurality of tumblers carried by the cylinder and-movable through the peripheral open- 9. A lock switch, comprising a casing piovided with a barrel ortion having elongated peripheral openings, a rotary switch element mounted within the casing, an os-.

- v.africanen `the barrel and connected to the rotary switch element9 said cylinder having a Ilrey open ing and a, tumbler opening intersecting the lrey opening, a member journaled to oscillate around the Ybarrel and 'having a con- I nection with the. oscillating switch element7 said oscillating member having inwardly eX- tending teeth which may be moved into register with the elongated openings or the barrel, a lplurality of reciprocal tumblers mounted within the tumbler opening oil the cylinder and being `movable through the peripheral openings of the barrel and into locking engagement with the teeth of the oscillating member to lock said member and p the cylinder to the barrel, said tumblers having medial openings which are alined with each other when in locking positions, and a key insertable within the key open- Ving of the cylinder and through the tumbler -openings for drawing the tumblers to unlocked positions within the cylinder.

10. A lock "switch, comprising a casing provided with a barrelportion having elongated peripheral openings, a rotary switch element mounted within the casing, an oscillatory switch element lmounted within the casing, a locking cylinder mounted within the barrel and connected to the vrotar switch element, said cylinder having a, hey opening and a tumbler opening intersecting the key opening, a member iournaled to oscillate around the barrel and having .a connection with the oscillating switch element, said oscillating member having inwardly' entending teeth which may be moved into register with the elongated openings oi the barrel`7 a plurality of reciprocal tumblers mounted. within the tumbler opening of the cylinder and being movable through the peripheral openings of the barrel and into locking engagemnt with the teeth of the oscillating member to lock said member and the cylinder to the barrel, said tumblers having outer recessed end portions which engage the teeth of the oscillating member and also having medial elongated vopenings which are alined with each other when in locking positions, and a key having reverse irregular shaped edge portions insertable within the key opening of the cylinder and through the tumbler lopenings for moving the tumblers tbmunlocked positions within the cylinder.

' 1l. A lock switch, comprising'a casing provided with a barrel portion having elongated peripheral openings, a rotary-switch element mounted within the casing., means ,for preventing the retrograde movement or the rotary switch element, an oscillating 'sw1tch element mounted Within the casing, a locking cylinder `mountedwithin the barrel y and connected to the rotary switch element,

said cylinder having a key opening and a tumbler openingv intersecting the hey open-3 ing, a member journeled to oscillate around the barrcl and having a connection with the oscillating switch element, said oscillating member having inwardly extending teeth which maybe moved into register with the elongated openings of the barrel;7 a plurality or reciprocal tumblers mounted within the tumbler opening oi the cylinder and being movable through the peripheral openings oi the barrel and into loclring engagement with the teeth of the oscillating member to loch said member and cylinder to the barrely said tumbler having outer recessed end portions whichlengage the teeth'of the oscillating member and also having vmedial elongated openings which are alined with eachother when in locking position, and a lrey having reverse irregular shaped edge portions insertable within the lrey opening Yoi the cylinder and through the tumbler opehings 'for moving the tumblers to unlocked positions within thecylinder. v

l2. A lock switch., -comprising a casing provided with a barrel portion having elongated peripheral openings., an insulating plate forming the rear cover for said casing and provided Vwith a series or" contacts arranged in concentric circles, amovable ring or insulating material positioned within the casing and having a plurality of movable contacts which engage some ot the contacts of the plate` a rotary membery formed ot inp sulating material' mounted within the casing and the bore of the insulating ring and having a plurality oi' movable contacts which engage other of the contacts or theplate, a loclring cylinder mounted within the barrel and connected to the rotary switch member, said cylinder having a lrey, opening and a tumbler opening intersecting the key opening. a mernberjournaled to oscillate around the barrel and having a connection with the movable ring7 said oscillating member hav ing inwardly extending teeth which may be moved register with the elongated openings or the barrel, a plurality or reciprocal t'umblcrs mounted within the tumbler opening of the cylinder through the peripheral openings of the barrel and into locking engagementv with the ne l and movable teeth of the oscillating member to loclr said and provided with a series ot contactsl 'arranged in oncentric circles2 a movable ring of insulating material positioned within the casing and having a plurality of movable contacts Awhich engage some of the contacts of the plate, a rotary member formed of insulating material mounted within the casing and the bore of the insulating ring and having a plurality of movable contacts which engage other of the contacts of the plate, a locking cylinder mounted within the barrel and connected to the rotary switch member, said cylinder having a key opening and a tumbler opening intersecting the key opening` a member liournaled to oscillate around the barrel and nhaving a connection with the movable ring, said oscillating member having inwardly extending teeth which may be moved into register with the elongated openings of the barrel, a plurality of reciprocal tumblers mounted within the tumbler opening of the cylinder and movable through the peripheral openings of the barrel and into locking engagement with the teeth ofy the oscillating member to lock said member and the cylinder to the barrel, said tumblers having outer recessed end p0rtions which engage the teeth of the oscillating'member and also having medial elongated openings which are alined with each other when the tumblers are in locking positions, and a key having reverse irregular shaped edge portions insertable within the key opening and through the tumbler openings for moving the tumblers to unlocked positions within the cylinder.

14. A lock switch, comprising a casing provided with a barrel. portion having elongated peripheral openings, an insulating plate removably connected to the casing and forming the rear cover for said casing and provided with a series of contacts arranged in concentric circles, a movable ring o finsulating material freely removably positioned within the casing and having a plurality of movable contacts which engage some of the contacts of the plate, a rotary member formed of insulating material freely removably mounted within the casing and the bore of the insulating ring and having a plurality of movable contacts which engage other of the contacts of the plate, a locking cylinder mounted within the barrel and connected to the rotary switch member, said cylinder having a key opening and a tuin-v bler opening intersecting the key opening, a member journaled to` oscillate around the barrel and having a connection with the movable ring, said oscillating member having inwardly extending teeth which may be moyd into register with the elongated openi-ng of the barrel, a plurality of reciprocal tumblers mounted within the tumbler open- 1ng of the cylinder and movable through the peripheral openings of the barrel and into locking engagement with the teeth of the osclllatmg member to lock said member andl ythrough the tumbler openings or moving the tumblers to unlocked positions within the cylinder.

l5. A lock switch, comprising a casing provided with ai barrel portion having elonlgatedwperipheral openings, an insulating plate removably connected tothe casing and forming the rear cover for said 'casing and provided with a series of contacts arranged in concentric circles, a movable 4ring of insulating material freely removably positioned within the casing and having a plurality of movable contacts which engage some of the contacts of the plate, a rotary member formed of freely removably mounted within thecasing andthe bore of the insulating ring andI having a plurality of movable contacts which engage other of the contacts of the plate, a locking cylinder mounted within the barrel and connected to the rotary switch member, said cylinder having a key opening and a tumbler openin intersecting the key opening and a so having ratchet teeth formed on its inner end portion, a spring actuated dog mounted within the casing and engaging the ratchet teeth for preventing retrograde rotation of the cylinder, a member journaled to oscillate around the barrel and having a connection with the movable ring, said oscillating member having inwardly extending teeth which may be moved into register with the elongated openings of the barrel, a plurality of reciprocal tumblers mounted within the tumbler opening of the cylinder and movable through the peripheral openings ofV the barrel and into locking engagement with the teeth of the oscillatin 4 member to lock said member and the cylinder to the barrel, said tumbler having outer recessed end portions which engage the teeth of the oscillating member and also having medial elongated openings which are alined with each other when the tumblers are in locking positions, and a key having reverse irregular shaped edge portions insertable within the key opening and through the tumbler openings for moving the tumblers to unlocked positions within the cylinder.

insulating material 16. AY lock switch, comprising a casing i in the casing and having a plurality of movable contacts which engage some of the contacts of the plate, a rotary member formed of insulating ymaterial mounted within the casing and the bore of the insulating ring and having a plurality of movable contacts which engage other or the contacts of the plate, a locking cylinder mounted within the-barrel and connected tothe rotary switch member, said cylinder having a key opening and a tumbler opening intersecting the key opening,` a member journaled to oscillate around the barrel and having a connection with` the movable ring means for resiliently maintaining the oscil ating member in any one of a plural-l ity of positions of rests, said oscillating member having inwardly extending teeth which may be 'movedinto register with the elongated openings of the barrel, a plurality of reciprocal tumblers mounted within the tumbler opening of the cylinder and movable through the peripheral 'openings of the barrel and into locking engagement with the teeth of-the oscillating member to lock said member and the cylinder to the barrel, said tumbler having medial openings which are alined with each other when in locking position, and a key insertable within the key opening of the cylinder and through the tumbler ,openings for moving the tumblers to unlocked positions within4 the cylinder. l

17. A lock switch, comprising a casing provided with a barrel portion having elongated peripheral openings, an insulating plate removably connected to the casing and forming the rear cover for said casing and provided with a series of contacts arranged in concentric circles, a movable ringer instrs lating material freely removably "positioned within the casing and having al. plurality of movable contacts which engage some of the contacts of the plate, a rotary member formed of insulating material freely removably mounted within the casing and the bore of the insulating ring and having avplurality of movable contacts which lengage other of the contacts of the plate, a locking cylinder mounted within the barrel and connected .to the rotary switch member, said cylinder having a key openingl and a tumbler opening intersecting the key opening and also having ratchet teeth formed on its inner end portion, a spring actuated dog mounted within the casing and engaging the ratchet teeth for preventing retrograde rotation of the cylinder, a member journaled to oscillate around the barrel and having a connection'with themovable ring, means for resil iently maintaining the oscillating member 1n any one of a plurality of positions of rests, said oscillating member having inwardly extending teeth which may be moved into register with the elongated openings of the barrel, a plurality of reciprocal tumblers mounted within the tumbler opening of the cylinder and movable through the peripheral openings of the barrel and into locking engagement with the teeth of the oscillating member to lock said member and the cylinder to the barrel, said tumbler having outer recessed end portions which engage the teeth of the oscillating member and also having medial elongated openings which are alined with each other when the tumblers are in locking positions, and a key having reverse irregular shaped edge portions insertable within the key opening and through the tumbler openings for moving the tumblers to unlocked positions within the cylinder.

18. A lock switch, comprising a casing provided with a barrel, a .rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, a locking cylinder Ymounted within the barrel and connected to the rotary switch element, a lever mounted to oscillate partly around the barrel and having a connection with the oscillating switch element, locking means carried by the cylinder for locking the cylinder and the lever against movement, and a key controlling the locking means.

19. A lock switch, comprising a` casing provided with a barrel, a rotary switch element mounted within the casing, means for preventing retrograde movement of the rotary switch element, an oscillating switch element mounted withinfthe casing, a locking cylinder mounted within the barrel and connected to the rotary switch element, a

lever mounted to oscillate partly around the barrel and having a connection with the oscillating switch element, locking means carried by the cylinder for locking the cylinder and the lever against movement, and a key controlling the locking means.

20. A. lock switch, comprising a casing provided with a barrel, a rotary switch element mounted within the casing, an oscillating switch element mounted within the casing, a locking cylinder mounted within the barrel and connected to the rotary switch element, a lever mounted to oscillate partly around the barrel and having a connection with thel oscillating switch element, locking means carried by the cylinder for locking the cylinder and the lever to thewbarrel, and a key controlling the lookin means and being non-removably connected to the cylinder when the rotary switch element is in its on position.

In testimony whereof I atlix my si ature.

` HARRY A. C M.

llti